Method and apparatus for paging

Abstract

The present application provides a method and apparatus for paging, which are used to solve the problem of how to map paging early indication PEI with multiple paging occasions PO or multiple PO subgroups. The method includes: a first terminal device UE receives first information, and the first information is used to indicate whether the paging occasion PO subgroup configured by the first paging frame PF carries paging data, the first PF is located in a first time window, the first UE corresponds to the first PO subgroup, and the first PO subgroup belongs to one of the PO subgroups configured by the first PF; the first UE determines whether the first information indicates that the first PO subgroup carries paging data based on the first PO subgroup and the first association relationship, wherein the first association relationship is used to indicate the correspondence between the first information and the PO subgroup configured by the first PF.

Description

Technical Field

[0001] The present application relates to the field of communications, and more particularly, to a method and apparatus for paging. Background Art

[0002] In new radio (NR), user equipment (UE) can be in one of three states: radio resource control idle (RRC_IDLE), RRC inactive (RRC_INACTIVE), and RRC connected (RRC_CONNECTED). When a network device needs to send downlink data to a UE in RRC_IDLE or RRC_INACTIVE, it must first page the UE through a paging process to notify it to establish or resume an RRC connection before data transmission can proceed.

[0003] Because the UE does not know whether the network device has actually sent a paging message to it before receiving the paging message, the UE in RRC_IDLE or RRC_INACTIVE state will try to receive the paging downlink control information (DCI) at the paging occasion (PO) within each paging frame (PF), and receive the paging physical downlink share channel (PDSCH) according to the scheduling of the paging DCI. Only after the UE has completely parsed the paging PDSCH data will it know whether the network device has actually sent the paging data to it. If the network device does not send a paging message to the UE on a PO, then the UE will waste resources by receiving and parsing the data on the PO.

[0004] To address the power consumption issue of terminal devices receiving paging in idle or inactive states, the NR system plans to introduce a first message, which can be called a paging early indication (PEI), also known as a paging indication (PI) in the 3rd Generation Partnership Project (3GPP). The first message is sent before the PO. The UE can receive the first message before the PO and determine whether to receive the paging DCI and paging PDSCH in the PO based on the indication of the first message, so as to save power consumption. 3GPP is currently designing PEI for NR. At the physical level, PEI may be sent using the downlink control channel (PDCCH) or DCI, or it may be sent using the secondary synchronization signal (SSS), tracking reference signal (TRS), or channel state information reference signal (CSI-RS).

[0005] However, in the actual application of the first information, the DCI used by PEI can carry multiple bits, and SSS and CSI-RS can also use multiple sequences, which means that one PEI can correspond to multiple POs, that is, a PEI can be sent to indicate whether there is paging on multiple consecutive POs. The current solution does not provide a method for how a PEI can indicate multiple POs or multiple sub-groups in a PO. Therefore, how to design a mapping method between PEI and multiple POs or multiple PO sub-groups is a problem that needs to be solved urgently. Summary of the Invention

[0006] The present application provides a method and apparatus for paging, which are used to solve the problem of how to map PEI with multiple POs or multiple PO subgroups.

[0007] In a first aspect, a method for paging is provided, including: a first terminal device UE receives first information, the first information being used to indicate whether a paging occasion PO subgroup configured by a first paging frame PF carries paging data, the first PF is located within a first time window, the first UE corresponds to a first PO subgroup, and the first PO subgroup belongs to one of the PO subgroups configured by the first PF; the first UE determines whether the first information indicates that the first PO subgroup carries paging data based on the first PO subgroup and a first association relationship, wherein the first association relationship is used to indicate the correspondence between the first information and the PO subgroup configured by the first PF.

[0008] Exemplarily, the first information is used to indicate whether one or more PF-configured PO subgroups within the first time window carry paging data, wherein the one or more PF-configured PO subgroups may be located within the first time window or may not be located within the first time window.

[0009] For example, the first information may be used to indicate whether all PF-configured PO subgroups within the first time window carry paging data.

[0010] It should be understood that the PO subgroup configured by a PF may also be referred to as the PO subgroup defined by the PF, which refers to all PO subgroups defined or configured on the PF.

[0011] It should be noted that the subgroup in the PO can be understood as grouping the UEs that monitor the paging PDCCH in the PO. Each group can be called a PO subgroup. When there is paging for idle or inactive UEs on the PO, the PO subgroup in the PO may or may not have paging. The PO subgroup in the present application can be replaced by PO. In other words, when there is no group in the PO to which the PO subgroup belongs, the above-mentioned PO subgroup is PO, that is, the scheme regarding the PO subgroup is also applicable to PO.

[0012] In the above scheme, by defining the content indicated by the first information, the UE is enabled to obtain the correspondence between the first information and the PO subgroup configured by the first PF according to the first association relationship. Furthermore, the UE can obtain whether the PO or PO subgroup corresponding to the UE indicated by the first information carries paging data (or whether paging exists). The above scheme can solve the mapping problem when the first information indicates multiple POs or PO subgroups.

[0013] In a possible implementation manner, some PO subgroups in the PO subgroups of the first PF configuration are included in a second time window, and the second time window is different from the first time window.

[0014] In this approach, if the first PF configures a large number of POs or PO subgroups, or each PO or PO subgroup includes a large number of listening opportunities, the first PF may span multiple time windows. In this case, the PO or PO subgroup indicated by the first information spans multiple time windows. This approach expands the way the first PF configures POs or PO subgroups.

[0015] In one possible embodiment, the type of the first information is downlink control information DCI, and the first association relationship is used to indicate the correspondence between the first information and the PO subgroup configured by the first PF, including: the first association relationship is used to indicate the correspondence between the bit index of the first information and the number of the PO subgroup configured by the first PF.

[0016] It should be noted that the number of the PO subgroup can be the index of the PO subgroup calculated using the formula in the current solution, or it can be the number corresponding to the PO subgroup after the index is further sorted in a certain order. This application does not limit this.

[0017] In one possible embodiment, the number of bits of the first information is greater than or equal to the number of PO subgroups configured by the first PF, and the bits of the first information correspond one-to-one to the PO subgroups configured by the first PF; or, the number of bits of the first information is less than the number of PO subgroups configured by the first PF, and each bit of at least one bit of the first information corresponds to multiple PO subgroups in the PO subgroups configured by the first PF.

[0018] In the above manner, when the first information is sent in the form of DCI, the bit index of the first information (or the numbering of the bits of the first information, which is not limited in this application) can be associated with the number (or index, which is not limited in this application on how to number the PO subgroup or design the index) of the PO subgroup configured by the first PF to form a mapping relationship. The above manner can solve the problem of how to map multiple bits in the first information to the PO or PO subgroup configured by the first PF.

[0019] In a possible embodiment, the type of the first information is a secondary synchronization signal SSS, a tracking reference signal TRS, or a channel state information reference signal CSI-RS, and the first association relationship is used to indicate the correspondence between the first information and the PO subgroup of the first PF configuration, including: the first association relationship is used to indicate the correspondence between the sequence index of the first information and the number of the PO subgroup of the first PF configuration.

[0020] In one possible embodiment, the number of configured sequences of the first information is greater than or equal to the number of PO subgroups configured by the first PF, and the sequences of the first information correspond one-to-one to the PO subgroups configured by the first PF; or, the number of configured sequences of the first information is less than the number of PO subgroups configured by the first PF, and each sequence of at least one sequence of the first information corresponds to multiple PO subgroups in the PO subgroups configured by the first PF.

[0021] It should be understood that the sequence in which the first information is configured means that the network side configures one or more sequences for sending the first information and selects one or more sequences to send the first information.

[0022] In the above manner, when the first information is sent in a sequence, the sequence index of the first information (or the sequence configured for the first information is numbered, which is not limited in this application) can be associated with the number (or index, which is not limited in this application on how to number the PO subgroup or design the index) of the PO subgroup configured by the first PF to form a mapping relationship. The above manner can solve the problem of how to map multiple sequences configured for the first information to the PO or PO subgroup configured by the first PF.

[0023] In one possible embodiment, the type of the first information is a secondary synchronization signal SSS, a tracking reference signal TRS, or a channel state information reference signal CSI-RS, and the first association relationship is used to indicate the correspondence between the first information and the PO subgroup configured by the first PF, including: the first association relationship is used to indicate the correspondence between the position of the configured resource of the first information and the number of the PO subgroup configured by the first PF.

[0024] In one possible embodiment, the number of positions of the configured resources of the first information is greater than or equal to the number of PO subgroups configured by the first PF, and the positions of the configured resources of the first information correspond one-to-one to the PO subgroups configured by the first PF; or, the number of positions of the configured resources of the first information is less than the number of PO subgroups configured by the first PF, and each position of at least one configured resource of the first information corresponds to multiple PO subgroups in the PO subgroups configured by the first PF.

[0025] It should be understood that the location of the configured resources of the first information means that the network side configures one or more resources for sending the first information, each resource corresponds to a time-frequency position, and the network side selects one or more resources to send the first information.

[0026] In the above manner, when the first information is sent in a serial manner, the location of the configured resources of the first information can be associated with the number (or index, this application does not limit how to number the PO subgroup or design the index) of the PO subgroup configured by the first PF to form a mapping relationship. The above manner can solve the problem of how to map the multiple resources configured by the first information with the PO or PO subgroup configured by the first PF. Enable the UE to determine whether the PO or PO subgroup is paging based on the resource location of its corresponding PO or PO subgroup and the first association relationship.

[0027] In a possible embodiment, the type of the first information is a secondary synchronization signal SSS, a tracking reference signal TRS or a channel state information reference signal CSI-RS, and the first association relationship is used to indicate the correspondence between the first information and the PO subgroup configured by the first PF, including: the first association relationship is used to indicate the correspondence between the sequence index of the first information, the position of the configured resource of the first information and the number of the PO subgroup configured by the first PF.

[0028] In one possible embodiment, the product of the number of configured sequences of the first information and the number of positions of the configured resources of the first information is greater than or equal to the number of PO subgroups configured by the first PF, and the sequences of the first information correspond one-to-one to the PO subgroups configured by the first PF; or, the product of the number of configured sequences of the first information and the number of positions of the configured resources of the first information is less than the number of PO subgroups configured by the first PF, and each sequence in at least one sequence of the first information corresponds to multiple PO subgroups in the PO subgroups configured by the first PF.

[0029] In the above approach, when multiple sequences can be sent on each resource, the product of the number of configured sequences of the first information, the number of resource locations for which the first information is configured, and the number of PO subgroups configured for the first PF determines the mapping relationship between the first information and the PO subgroups configured for the first PF. This approach solves the problem of how to map the first information to the PO or PO subgroup configured for the first PF when each of the multiple resources configured for the first information is configured to send multiple sequences.

[0030] In the second aspect, a method for paging is provided, including: a first network device determines first information based on a first association relationship, the first association relationship is used to indicate the correspondence between the first information and the paging occasion PO subgroup configured by the first paging frame PF, the first PF is located in a first time window, and the first information is used to indicate whether the PO subgroup configured by the first PF carries paging data; the first network device sends the first information.

[0031] Exemplarily, the first information is used to indicate whether one or more PF-configured PO subgroups within the first time window carry paging data, wherein the one or more PF-configured PO subgroups may be located within the first time window or may not be located within the first time window.

[0032] For example, the first information may be used to indicate whether all PF-configured PO subgroups within the first time window carry paging data.

[0033] It should be understood that the PO subgroup configured by a PF may also be referred to as the PO subgroup defined by the PF, which refers to all PO subgroups defined or configured on the PF.

[0034] It should be noted that the subgroup in the PO can be understood as grouping the UEs that monitor the paging PDCCH in the PO. Each group can be called a PO subgroup. When there is paging for idle or inactive UEs on the PO, the PO subgroup in the PO may or may not have paging. The PO subgroup in the present application can be replaced by PO. In other words, when there is no group in the PO to which the PO subgroup belongs, the above-mentioned PO subgroup is PO, that is, the scheme regarding the PO subgroup is also applicable to PO.

[0035] In the above solution, by defining the content indicated by the first information, the network side is enabled to obtain the correspondence between the first information and the PO subgroup configured by the first PF based on the first association relationship. Further, the first information is determined based on the first association relationship, thereby indicating whether the PO or PO subgroup configured by the first PF carries paging data (or whether paging exists). The above solution can solve the mapping problem when the first information indicates multiple POs or PO subgroups.

[0036] In a possible implementation manner, some PO subgroups in the PO subgroups of the first PF configuration are included in a second time window, and the second time window is different from the first time window.

[0037] In this approach, if the first PF configures a large number of POs or PO subgroups, or each PO or PO subgroup includes a large number of listening opportunities, the first PF may span multiple time windows. In this case, the PO or PO subgroup indicated by the first information spans multiple time windows. This approach expands the way the first PF configures POs or PO subgroups.

[0038] In one possible embodiment, the type of the first information is downlink control information DCI, and the first association relationship is used to indicate the correspondence between the first information and the paging occasion PO subgroup configured by the first paging frame PF, including: the first association relationship is used to indicate the correspondence between the bit index of the first information and the number of the PO subgroup configured by the first PF.

[0039] In one possible embodiment, the number of bits of the first information is greater than or equal to the number of PO subgroups configured by the first PF, and the bits of the first information correspond one-to-one to the PO subgroups configured by the first PF; or, the number of bits of the first information is less than the number of PO subgroups configured by the first PF, and each bit of at least one bit of the first information corresponds to multiple PO subgroups in the PO subgroups configured by the first PF.

[0040] In the above manner, when the first information is sent in the form of DCI, the bit index of the first information (or the numbering of the bits of the first information, which is not limited in this application) can be associated with the number (or index, which is not limited in this application on how to number the PO subgroup or design the index) of the PO subgroup configured by the first PF to form a mapping relationship. The above manner can solve the problem of how to map multiple bits in the first information to the PO or PO subgroup configured by the first PF.

[0041] In a possible embodiment, the type of the first information is a secondary synchronization signal SSS, a tracking reference signal TRS or a channel state information reference signal CSI-RS, and the first association relationship is used to indicate the correspondence between the first information and the paging occasion PO subgroup configured by the first paging frame PF, including: the first association relationship is used to indicate the correspondence between the sequence index of the first information and the number of the PO subgroup configured by the first PF.

[0042] In one possible embodiment, the number of configured sequences of the first information is greater than or equal to the number of PO subgroups configured by the first PF, and the sequences of the first information correspond one-to-one to the PO subgroups configured by the first PF; or, the number of configured sequences of the first information is less than the number of PO subgroups configured by the first PF, and each sequence of at least one sequence of the first information corresponds to multiple PO subgroups in the PO subgroups configured by the first PF.

[0043] It should be understood that the sequence in which the first information is configured means that the network side configures one or more sequences for sending the first information and selects one or more sequences to send the first information.

[0044] In the above manner, when the first information is sent in a sequence, the sequence index of the first information (or the sequence configured for the first information is numbered, which is not limited in this application) can be associated with the number (or index, which is not limited in this application on how to number the PO subgroup or design the index) of the PO subgroup configured by the first PF to form a mapping relationship. The above manner can solve the problem of how to map multiple sequences configured for the first information to the PO or PO subgroup configured by the first PF.

[0045] In a possible embodiment, the type of the first information is a secondary synchronization signal SSS, a tracking reference signal TRS or a channel state information reference signal CSI-RS, and the first association relationship is used to indicate the correspondence between the first information and the paging occasion PO subgroup configured by the first paging frame PF, including: the first association relationship is used to indicate the correspondence between the position of the configured resource of the first information and the number of the PO subgroup configured by the first PF.

[0046] In one possible embodiment, the number of positions of the configured resources of the first information is greater than or equal to the number of PO subgroups configured by the first PF, and the positions of the configured resources of the first information correspond one-to-one to the PO subgroups configured by the first PF; or, the number of positions of the configured resources of the first information is less than the number of PO subgroups configured by the first PF, and each position of at least one configured resource of the first information corresponds to multiple PO subgroups in the PO subgroups configured by the first PF.

[0047] It should be understood that the location of the configured resources of the first information means that the network side configures one or more resources for sending the first information, each resource corresponds to a time-frequency position, and the network side selects one or more resources to send the first information.

[0048] In the above manner, when the first information is sent in a serial manner, the location of the configured resources of the first information can be associated with the number (or index, this application does not limit how to number the PO subgroup or design the index) of the PO subgroup configured by the first PF to form a mapping relationship. The above manner can solve the problem of how to map the multiple resources configured by the first information with the PO or PO subgroup configured by the first PF. Enable the UE to determine whether the PO or PO subgroup is paging based on the resource location of its corresponding PO or PO subgroup and the first association relationship.

[0049] In a possible embodiment, the type of the first information is a secondary synchronization signal SSS, a tracking reference signal TRS or a channel state information reference signal CSI-RS, and the first association relationship is used to indicate the correspondence between the first information and the paging occasion PO subgroup configured by the first paging frame PF, including: the first association relationship is used to indicate the correspondence between the sequence index of the first information, the position of the configured resource of the first information and the number of the PO subgroup configured by the first PF.

[0050] In one possible embodiment, the product of the number of configured sequences of the first information and the number of positions of the configured resources of the first information is greater than or equal to the number of PO subgroups configured by the first PF, and the sequences of the first information correspond one-to-one to the PO subgroups configured by the first PF; or, the product of the number of configured sequences of the first information and the number of positions of the configured resources of the first information is less than the number of PO subgroups configured by the first PF, and each sequence in at least one sequence of the first information corresponds to multiple PO subgroups in the PO subgroups configured by the first PF.

[0051] In the above approach, when multiple sequences can be sent on each resource, the product of the number of configured sequences of the first information, the number of resource locations for which the first information is configured, and the number of PO subgroups configured for the first PF determines the mapping relationship between the first information and the PO subgroups configured for the first PF. This approach solves the problem of how to map the first information to the PO or PO subgroup configured for the first PF when each of the multiple resources configured for the first information is configured to send multiple sequences.

[0052] In a third aspect, a method for paging is provided, including: a first terminal device UE receives first information, the first information being used to indicate whether a paging occasion PO subgroup included in a first time window carries paging data, the first UE corresponds to a first PO subgroup, and the first PO subgroup belongs to one of the PO subgroups included in the first time window; the first UE determines a first association relationship based on the number of PO subgroups included in the first time window, the first association relationship being used to indicate a correspondence between the first information and the PO subgroup included in the first time window; the first UE determines, based on the first PO subgroup and the first association relationship, whether the first information indicates that the first PO subgroup carries paging data.

[0053] It should be understood that the PO subgroups included in the first time window mentioned above refer to all PO subgroups included in the first time window, that is, all PO subgroups within the first time window in the time domain.

[0054] It should be noted that in the above method, the number of PO subgroups contained in different time windows may be different, which means that the number of PO subgroups indicated by different first information may be different. Therefore, the UE needs to obtain the number of PO subgroups contained in each time window, which can be calculated by the UE, or the network side can send an indication information to indicate the number of PO subgroups contained in the time window to determine the mapping relationship between the first information and the PO subgroups contained in the time window.

[0055] It should be noted that the subgroup in the PO can be understood as grouping the UEs that monitor the paging PDCCH in the PO. Each group can be called a PO subgroup. When there is paging for idle or inactive UEs on the PO, the PO subgroup in the PO may or may not have paging. The PO subgroup in the present application can be replaced by PO. In other words, when there is no group in the PO to which the PO subgroup belongs, the above-mentioned PO subgroup is PO, that is, the scheme regarding the PO subgroup is also applicable to PO.

[0056] In the above scheme, by defining the content indicated by the first information, the UE is enabled to obtain the correspondence between the first information and the PO subgroup (or PO) contained in the first time window based on the first association relationship. Further, the UE can obtain whether the PO or PO subgroup corresponding to the UE indicated by the first information carries paging data (or whether paging exists). The above scheme can solve the mapping problem when the first information indicates multiple POs or PO subgroups. On the other hand, when the number of POs configured by the PF in the first time window is too large or the PO configured by the PF includes too many MOs, the PO configured by the PF spans a long time, which may cause paging delays. The above scheme can reduce the impact of the above paging delays by making the PO or PO subgroup indicated by the first information use the time window as the granularity.

[0057] In a possible implementation manner, the first monitoring opportunity MO corresponding to each PO subgroup in the PO subgroups included in the first time window is included in the first time window.

[0058] In this solution, when the MO corresponding to a PO or PO subgroup included in the first time window is located in multiple time windows, and these multiple time windows correspond to multiple first information, it can be specified which first information indicates the PO or PO subgroup. As shown in the above solution, the PO or PO subgroup is indicated by the first information corresponding to the time window in which the first MO corresponding to the PO or PO subgroup is located. This solution can make the content indicated by the first information more accurate.

[0059] In a possible embodiment, the type of the first information is downlink control information DCI, and the first association relationship is used to indicate the correspondence between the first information and the PO subgroup contained in the first time window, including: the first association relationship is used to indicate the correspondence between the bit index of the first information and the number of the PO subgroup contained in the first time window.

[0060] In one possible embodiment, the number of bits of the first information is greater than or equal to the number of PO subgroups contained in the first time window, and the bits of the first information correspond one-to-one to the PO subgroups contained in the first time window; or, the number of bits of the first information is less than the number of PO subgroups contained in the first time window, and each bit of at least one bit of the first information corresponds to multiple PO subgroups in the PO subgroups contained in the first time window.

[0061] In the above manner, when the first information is sent in the form of DCI, the bit index of the first information (or the numbering of the bits of the first information, which is not limited in this application) can be associated with the number (or index, which is not limited in this application on how to number the PO subgroup or design the index) of the PO subgroup included in the first time window to form a mapping relationship. The above manner can solve the problem of how to map multiple bits in the first information to the PO or PO subgroup included in the first time window.

[0062] In a possible embodiment, the type of the first information is a secondary synchronization signal SSS, a tracking reference signal TRS, or a channel state information reference signal CSI-RS, and the first association relationship is used to indicate the correspondence between the first information and the PO subgroup contained in the first time window, including: the first association relationship is used to indicate the correspondence between the sequence index of the first information and the number of the PO subgroup contained in the first time window.

[0063] In one possible embodiment, the number of configured sequences of the first information is greater than or equal to the number of PO subgroups contained in the first time window, and the sequences of the first information correspond one-to-one to the PO subgroups contained in the first time window; or, the number of configured sequences of the first information is less than the number of PO subgroups contained in the first time window, and each sequence in at least one sequence of the first information corresponds to multiple PO subgroups in the PO subgroups contained in the first time window.

[0064] It should be understood that the sequence in which the first information is configured means that the network side configures one or more sequences for sending the first information and selects one or more sequences to send the first information.

[0065] In the above manner, when the first information is sent in a sequence, the sequence index of the first information (or the sequence configured for the first information is numbered, which is not limited in this application) can be associated with the number (or index, which is not limited in this application on how to number or design the index for the PO subgroup) of the PO included in the first time window to form a mapping relationship. The above manner can solve the problem of how to map multiple sequences configured for the first information and the POs or PO subgroups included in the first time window.

[0066] In a possible embodiment, the type of the first information is a secondary synchronization signal SSS, a tracking reference signal TRS, or a channel state information reference signal CSI-RS, and the first association relationship is used to indicate the correspondence between the first information and the PO subgroup contained in the first time window, including: the first association relationship is used to indicate the correspondence between the position of the configured resource of the first information and the number of the PO subgroup contained in the first time window.

[0067] In one possible embodiment, the number of positions of the configured resources of the first information is greater than or equal to the number of PO subgroups contained in the first time window, and the positions of the configured resources of the first information correspond one-to-one to the PO subgroups contained in the first time window; or, the number of positions of the configured resources of the first information is less than the number of PO subgroups contained in the first time window, and each position of at least one configured resource of the first information corresponds to multiple PO subgroups in the PO subgroups contained in the first time window.

[0068] It should be understood that the location of the configured resources of the first information means that the network side configures one or more resources for sending the first information, each resource corresponds to a time-frequency position, and the network side selects one or more resources to send the first information.

[0069] In the above method, when the first information is sent in a serial manner, the location of the configured resource of the first information can be associated with the number (or index, this application does not limit how to number the PO subgroup or design the index) of the PO subgroup contained in the first time window to form a mapping relationship. The above method can solve the problem of how to map the multiple resources configured by the first information with the PO or PO subgroup contained in the first time window. Enable the UE to determine whether the PO or PO subgroup is paging based on the resource location of its corresponding PO or PO subgroup and the first association relationship.

[0070] In a possible embodiment, the type of the first information is a secondary synchronization signal SSS, a tracking reference signal TRS or a channel state information reference signal CSI-RS, and the first association relationship is used to indicate the correspondence between the first information and the PO subgroup contained in the first time window, including: the first association relationship is used to indicate the correspondence between the sequence index of the first information, the position of the configured resource of the first information and the number of the PO subgroup contained in the first time window.

[0071] In one possible embodiment, the product of the number of configured sequences of the first information and the number of positions of the configured resources of the first information is greater than or equal to the number of PO subgroups contained in the first time window, and the sequences of the first information correspond one-to-one to the PO subgroups configured by the first PF; or, the product of the number of configured sequences of the first information and the number of positions of the configured resources of the first information is less than the number of PO subgroups contained in the first time window, and each sequence in at least one sequence of the first information corresponds to multiple PO subgroups in the PO subgroups contained in the first time window.

[0072] In the above approach, when multiple sequences can be sent on each resource, the product of the number of configured sequences of the first information, the number of resource locations configured for the first information, and the number of PO subgroups included in the first time window determines the mapping relationship between the first information and the PO subgroups included in the first time window. The above approach solves the problem of how to map the first information to the POs or PO subgroups included in the first time window when each of the multiple resources configured for the first information is configured to send multiple sequences.

[0073] In a fourth aspect, a method for paging is provided, including: a first network device determines a first association relationship based on the number of PO subgroups of paging occasions contained in a first time window, and the first association relationship is used to indicate the correspondence between first information and the PO subgroups contained in the first time window; the first network device determines the first information based on the first association relationship, and the first information is used to indicate whether the PO subgroup contained in the first time window carries paging data; the first network device sends the first information.

[0074] It should be understood that the PO subgroups included in the first time window mentioned above refer to all PO subgroups included in the first time window, that is, all PO subgroups within the first time window in the time domain.

[0075] It should be noted that in the above method, the number of PO subgroups contained in different time windows may be different, which means that the number of PO subgroups indicated by different first information may be different. Therefore, the UE side needs to obtain the number of PO subgroups contained in each time window, which can be calculated by the UE, or the network side can send an indication information to indicate the number of PO subgroups contained in the time window, so as to enable the UE to determine the mapping relationship between the first information and the PO subgroups contained in the time window.

[0076] It should be noted that the subgroup in the PO can be understood as grouping the UEs that monitor the paging PDCCH in the PO. Each group can be called a PO subgroup. When there is paging for idle or inactive UEs on the PO, the PO subgroup in the PO may or may not have paging. The PO subgroup in the present application can be replaced by PO. In other words, when there is no group in the PO to which the PO subgroup belongs, the above-mentioned PO subgroup is PO, that is, the scheme regarding the PO subgroup is also applicable to PO.

[0077] In the above scheme, by defining the content indicated by the first information, the network side can obtain the correspondence between the first information and the PO subgroup (or PO) contained in the first time window based on the first association relationship. Further, the first information is determined based on the first association relationship, thereby indicating whether the PO or PO subgroup contained in the first time window carries paging data (or whether paging exists). The above scheme can solve the mapping problem when the first information indicates multiple POs or PO subgroups. On the other hand, when the number of POs configured by the PF in the first time window is too large or the PO configured by the PF includes too many MOs, the PO configured by the PF spans a long time, which may cause paging delays. The above scheme can reduce the impact of the above paging delays by making the PO or PO subgroup indicated by the first information use the time window as the granularity.

[0078] In a possible implementation manner, the first monitoring opportunity MO corresponding to each PO subgroup in the PO subgroups included in the first time window is included in the first time window.

[0079] In this solution, when the MO corresponding to a PO or PO subgroup included in the first time window is located in multiple time windows, and these multiple time windows correspond to multiple first information, it can be specified which first information indicates the PO or PO subgroup. As shown in the above solution, the PO or PO subgroup is indicated by the first information corresponding to the time window in which the first MO corresponding to the PO or PO subgroup is located. This solution can make the content indicated by the first information more accurate.

[0080] In a possible embodiment, the type of the first information is downlink control information DCI, and the first association relationship is used to indicate the correspondence between the first information and the PO subgroup contained in the first time window, including: the first association relationship is used to indicate the correspondence between the bit index of the first information and the number of the PO subgroup contained in the first time window.

[0081] In one possible embodiment, the number of bits of the first information is greater than or equal to the number of PO subgroups contained in the first time window, and the bits of the first information correspond one-to-one to the PO subgroups contained in the first time window; or, the number of bits of the first information is less than the number of PO subgroups contained in the first time window, and each bit of at least one bit of the first information corresponds to multiple PO subgroups in the PO subgroups contained in the first time window.

[0082] In the above manner, when the first information is sent in the form of DCI, the bit index of the first information (or the numbering of the bits of the first information, which is not limited in this application) can be associated with the number (or index, which is not limited in this application on how to number the PO subgroup or design the index) of the PO subgroup included in the first time window to form a mapping relationship. The above manner can solve the problem of how to map multiple bits in the first information to the PO or PO subgroup included in the first time window.

[0083] In a possible embodiment, the type of the first information is a secondary synchronization signal SSS, a tracking reference signal TRS, or a channel state information reference signal CSI-RS, and the first association relationship is used to indicate the correspondence between the first information and the PO subgroup contained in the first time window, including: the first association relationship is used to indicate the correspondence between the sequence index of the first information and the number of the PO subgroup contained in the first time window.

[0084] In one possible embodiment, the number of configured sequences of the first information is greater than or equal to the number of PO subgroups contained in the first time window, and the sequences of the first information correspond one-to-one to the PO subgroups contained in the first time window; or, the number of configured sequences of the first information is less than the number of PO subgroups contained in the first time window, and each sequence in at least one sequence of the first information corresponds to multiple PO subgroups in the PO subgroups contained in the first time window.

[0085] It should be understood that the sequence in which the first information is configured means that the network side configures one or more sequences for sending the first information and selects one or more sequences to send the first information.

[0086] In the above manner, when the first information is sent in a sequence, the sequence index of the first information (or the sequence configured for the first information is numbered, which is not limited in this application) can be associated with the number (or index, which is not limited in this application on how to number or design the index for the PO subgroup) of the PO included in the first time window to form a mapping relationship. The above manner can solve the problem of how to map multiple sequences configured for the first information and the POs or PO subgroups included in the first time window.

[0087] In a possible embodiment, the type of the first information is a secondary synchronization signal SSS, a tracking reference signal TRS, or a channel state information reference signal CSI-RS, and the first association relationship is used to indicate the correspondence between the first information and the PO subgroup contained in the first time window, including: the first association relationship is used to indicate the correspondence between the position of the configured resource of the first information and the number of the PO subgroup contained in the first time window.

[0088] In one possible embodiment, the number of positions of the configured resources of the first information is greater than or equal to the number of PO subgroups contained in the first time window, and the positions of the configured resources of the first information correspond one-to-one to the PO subgroups contained in the first time window; or, the number of positions of the configured resources of the first information is less than the number of PO subgroups contained in the first time window, and each position of at least one configured resource of the first information corresponds to multiple PO subgroups in the PO subgroups contained in the first time window.

[0089] It should be understood that the location of the configured resources of the first information means that the network side configures one or more resources for sending the first information, each resource corresponds to a time-frequency position, and the network side selects one or more resources to send the first information.

[0090] In the above method, when the first information is sent in a serial manner, the location of the configured resource of the first information can be associated with the number (or index, this application does not limit how to number the PO subgroup or design the index) of the PO subgroup contained in the first time window to form a mapping relationship. The above method can solve the problem of how to map the multiple resources configured by the first information with the PO or PO subgroup contained in the first time window. Enable the UE to determine whether the PO or PO subgroup is paging based on the resource location of its corresponding PO or PO subgroup and the first association relationship.

[0091] In a possible embodiment, the type of the first information is a secondary synchronization signal SSS, a tracking reference signal TRS or a channel state information reference signal CSI-RS, and the first association relationship is used to indicate the correspondence between the first information and the PO subgroup contained in the first time window, including: the first association relationship is used to indicate the correspondence between the sequence index of the first information, the position of the configured resource of the first information and the number of the PO subgroup contained in the first time window.

[0092] In one possible embodiment, the product of the number of configured sequences of the first information and the number of positions of the configured resources of the first information is greater than or equal to the number of PO subgroups contained in the first time window, and the sequences of the first information correspond one-to-one to the PO subgroups configured by the first PF; or, the product of the number of configured sequences of the first information and the number of positions of the configured resources of the first information is less than the number of PO subgroups contained in the first time window, and each sequence in at least one sequence of the first information corresponds to multiple PO subgroups in the PO subgroups contained in the first time window.

[0093] In the above approach, when multiple sequences can be sent on each resource, the product of the number of configured sequences of the first information, the number of resource locations configured for the first information, and the number of PO subgroups included in the first time window determines the mapping relationship between the first information and the PO subgroups included in the first time window. The above approach solves the problem of how to map the first information to the POs or PO subgroups included in the first time window when each of the multiple resources configured for the first information is configured to send multiple sequences.

[0094] In a fifth aspect, a communication device is provided. The communication device may include a module for executing the method according to the first aspect and any possible implementation of the first aspect, or a module for executing the method according to the third aspect and any possible implementation of the third aspect, for example, a processing module and a transceiver module. The transceiver module may include a transmitting module and a receiving module. The transmitting module and the receiving module may be different functional modules or the same functional module capable of performing different functions. The processing module may be implemented by a processor. The transceiver module may be implemented by a transceiver. Accordingly, the transmitting module may be implemented by a transmitter and the receiving module may be implemented by a receiver. The communication device may be a terminal device or a chip or chip system within the terminal device. If the communication device is a terminal device, the transceiver may be a radio frequency transceiver component within the terminal device. If the communication device is a chip or chip system provided within the terminal device, the transceiver may be a communication interface within the chip or chip system, which is connected to the radio frequency transceiver component within the terminal device to transmit and receive information via the radio frequency transceiver component.

[0095] In a sixth aspect, a communication device is provided. The communication device may include a module for executing the method according to the second aspect and any possible implementation of the second aspect, or a module for executing the method according to the fourth aspect and any possible implementation of the fourth aspect, for example, a processing module and a transceiver module. The transceiver module may include a transmitting module and a receiving module. The transmitting module and the receiving module may be different functional modules or the same functional module capable of performing different functions. The processing module may be implemented by a processor. The transceiver module may be implemented by a transceiver. Accordingly, the transmitting module may be implemented by a transmitter and the receiving module may be implemented by a receiver. The communication device may be a network device or a chip or chip system within the network device. If the communication device is a network device, the transceiver may be a radio frequency transceiver component within the network device. If the communication device is a chip or chip system provided within the network device, the transceiver may be a communication interface within the chip or chip system, the communication interface being connected to the radio frequency transceiver component within the network device to enable information transmission and reception via the radio frequency transceiver component.

[0096] In a seventh aspect, a communication device is provided, comprising a processor and a storage medium, the storage medium storing instructions, wherein when the instructions are executed by the processor, the communication device executes the method according to the first aspect and any possible implementation of the first aspect, the method according to the second aspect and any possible implementation of the second aspect, or the method according to the third aspect and any possible implementation of the third aspect, the method according to the fourth aspect and any possible implementation of the fourth aspect. The communication device may be a terminal device or a network device, or a chip or chip system in the terminal device or network device.

[0097] In an eighth aspect, a computer-readable storage medium is provided, characterized in that the computer-readable storage medium stores a computer program, and when the computer program is run, the communication device executes a method such as the first aspect and any possible implementation of the first aspect, a method such as the second aspect and any possible implementation of the second aspect, or a method such as the third aspect and any possible implementation of the third aspect, a method such as the fourth aspect and any possible implementation of the fourth aspect.

[0098] In the ninth aspect, a computer program product is provided, which includes a computer program. When the computer program is run by a computer, the computer executes the method in the first aspect and any possible implementation of the first aspect, the method in the second aspect and any possible implementation of the second aspect, or the method in the third aspect and any possible implementation of the third aspect, the method in the fourth aspect and any possible implementation of the fourth aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0099] Figure 1 It is a schematic diagram of a communication system applicable to an embodiment of the present application.

[0100] Figure 2 This is a schematic diagram of the content carried by an SSB symbol provided in an embodiment of the present application.

[0101] Figure 3 This is a schematic diagram of an SSB time domain multiplexing pattern provided in an embodiment of the present application.

[0102] Figure 4 This is an example of a MO occupancy symbol diagram provided in this application.

[0103] Figure 5 This is a schematic diagram of the mapping relationship between SSB, PO and MO provided in this application.

[0104] Figure 6 This is a schematic diagram of the relationship between PF, PO and MO.

[0105] Figure 7 A schematic diagram of an example time window provided in this application.

[0106] Figure 8 This is a schematic diagram of an example of the correspondence between PEI and time window provided in this application.

[0107] Figure 9 This is a schematic flow chart provided in an embodiment of the present application.

[0108] Figure 10 This is another schematic flow chart of an embodiment of the present application.

[0109] Figure 11 This is a schematic flow chart provided in an embodiment of the present application.

[0110] Figure 12 This is a configuration diagram of PEI, PF and PO provided in this application.

[0111] Figure 13 This is another configuration diagram of PEI, PF and PO provided in this application.

[0112] Figure 14 This is a schematic diagram of the mapping relationship between the PO subgroup number and the PEI bit index provided in this application.

[0113] Figure 15 This is a resource configuration diagram provided by this application.

[0114] Figure 16 This is another resource configuration diagram provided by this application.

[0115] Figure 17 This is another schematic flow chart provided in the embodiments of the present application.

[0116] Figure 18 This is a configuration diagram of PEI, PF and PO provided in this application.

[0117] Figure 19 This is another configuration diagram of PEI, PF and PO provided in this application.

[0118] Figure 20 This is another configuration diagram of PEI, PF and PO provided in this application.

[0119] Figure 21 This is a structural diagram of a communication device provided in an embodiment of the present application.

[0120] Figure 22 This is a structural diagram of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0121] The technical solution in this application will be described below with reference to the accompanying drawings.

[0122] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, universal mobile telecommunication system (UMTS), world-wide interoperability for microwave access (WiMAX) communication system, fifth generation (5G) mobile communication system or new radio access technology (NR) or next generation communication system, such as 6G. Among them, the 5G mobile communication system can be a non-standalone (NSA) or a standalone (SA) network.

[0123] The technical solution provided in this application can also be applied to machine type communication (MTC), long term evolution technology for machine-to-machine communication (LTE-M), device-to-device (D2D) network, machine-to-machine (M2M) network, Internet of Things (IoT) network or other networks. Among them, the IoT network may include, for example, the Internet of Vehicles. Among them, the communication mode in the Internet of Vehicles system is collectively referred to as vehicle to other devices (vehicle to X, V2X, X can represent anything), for example, the V2X may include: vehicle to vehicle (V2V) communication, vehicle to infrastructure (V2I) communication, vehicle to pedestrian (V2P) communication or vehicle to network (V2N) communication, etc.

[0124] The technical solution provided in this application can also be applied to future communication systems, such as the sixth generation (6G) mobile communication system, etc. This application does not limit this.

[0125] In the embodiment of the present application, the network device can be any device with wireless transceiver function. The device includes but is not limited to: an evolved Node B (eNB), a radio network controller (RNC), a Node B (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (e.g., a home evolved NodeB, or a homeNode B, HNB), a baseband unit (BBU), an access point (AP) in a wireless fidelity (WiFi) system, a wireless relay node, a wireless backhaul node, a transmission point (TP) or a transmission and reception point (TRP), etc. It can also be a gNB in ​​a 5G, such as NR, system, or a transmission / reception point (TRP or TP), one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system, or a network node constituting a gNB or a transmission point, such as a baseband unit (BBU) or a distributed unit (DPU). unit, DU), or base stations in the next-generation communication 6G system, etc.

[0126] In some deployments, a gNB may include a centralized unit (CU) and a DU. The gNB may also include an active antenna unit (AAU). The CU implements some gNB functions, while the DU implements some gNB functions. For example, the CU is responsible for processing non-real-time protocols and services, implementing the functions of the radio resource control (RRC) and packet data convergence protocol (PDCP) layers. The DU is responsible for processing physical layer protocols and real-time services, implementing the functions of the radio link control (RLC), medium access control (MAC), and physical (PHY) layers. The AAU implements some physical layer processing functions, RF processing, and active antenna-related functions. Because RRC layer information ultimately becomes PHY layer information, or is converted from PHY layer information, in this architecture, higher-layer signaling, such as RRC layer signaling, can also be considered to be sent by the DU, or by both the DU and the CU. It is understood that a network device can be a device that includes one or more of a CU node, a DU node, or an AAU node. In addition, the CU may be classified as a network device in an access network (radio access network, RAN), or may be classified as a network device in a core network (core network, CN), which is not limited in this application.

[0127] The network equipment provides services for the cell, and the terminal device communicates with the cell through the transmission resources (for example, frequency domain resources, or spectrum resources) allocated by the network equipment. The cell can belong to a macro base station (for example, macro eNB or macro gNB, etc.) or a base station corresponding to a small cell. The small cells here can include: metrocell, microcell, picocell, femtocell, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

[0128] In an embodiment of the present application, the terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device.

[0129] A terminal device may be a device that provides voice / data connectivity to a user, for example, a handheld device with wireless connection function, a vehicle-mounted device, etc. Currently, some examples of terminals may include: mobile phones, tablet computers, computers with wireless transceiver functions (such as laptops, PDAs, etc.), mobile internet devices (MIDs), virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), and so on. assistant, PDA), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, vehicle-mounted devices, wearable devices, terminal devices in 5G networks, or terminal devices in future evolved public land mobile networks (PLMN), etc.

[0130] Wearable devices, also known as wearable smart devices, are a general term for wearable devices that use wearable technology to intelligently design and develop wearable devices for daily wear, such as glasses, gloves, watches, clothing, and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not just hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include those that are fully functional, large in size, and can achieve full or partial functions without relying on smartphones, such as smart watches or smart glasses, as well as those that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0131] Furthermore, terminal devices can also be end devices in the Internet of Things (IoT) system. IoT is a crucial component of future information technology development. Its primary technical feature is connecting objects to the Internet through communications, thereby enabling intelligent networks that interconnect humans and machines, and objects and things. IoT technology, for example, utilizes narrowband (NB) technology to achieve massive connectivity, deep coverage, and power-saving terminals.

[0132] In addition, terminal devices can also include sensors such as smart printers, train detectors, and gas stations. Their main functions include collecting data (part of the terminal devices), receiving control information and downlink data from network devices, and sending electromagnetic waves to transmit uplink data to network devices.

[0133] To facilitate understanding of the embodiments of this application, first Figure 1 A communication system applicable to the method provided in the embodiments of the present application is described in detail.

[0134] Figure 1 Schematic diagram of a communication system applicable to the embodiment of the present application. Figure 1 As shown, the communication system 100 may include at least one network device, such as Figure 1 The network device 101 in the 5G system shown in FIG; The communication system 100 may also include at least one terminal device, such as Figure 1 The terminal devices 102 to 107 shown in the figure. The terminal devices 102 to 107 can be mobile or fixed. The network device 101 and one or more of the terminal devices 102 to 107 can communicate via wireless links. Each network device can provide communication coverage for a specific geographical area and can communicate with terminal devices located in the coverage area. For example, the network device can send configuration information to the terminal device, and the terminal device can send uplink data to the network device based on the configuration information; for another example, the network device can send downlink data to the terminal device. Therefore, Figure 1 The network device 101 and terminal devices 102 to 107 in the communication system constitute a communication system.

[0135] Alternatively, terminal devices can communicate directly with each other. For example, direct communication between terminal devices can be achieved using D2D technology. As shown in the figure, terminal devices 105 and 106, and terminal devices 105 and 107 can communicate directly using D2D technology. Terminal devices 106 and 107 can communicate with terminal device 105 individually or simultaneously.

[0136] Terminal devices 105 to 107 may also communicate with network device 101 respectively. For example, they may communicate directly with network device 101, as shown in the figure, as terminal devices 105 and 106 may communicate directly with network device 101; or they may communicate indirectly with network device 101, as shown in the figure, as terminal device 107 communicates with network device 101 via terminal device 106.

[0137] It should be understood that Figure 1 The exemplary embodiment shows a network device and multiple terminal devices, as well as the communication links between the communication devices. Optionally, the communication system 100 may include multiple network devices, and each network device may include other numbers of terminal devices within its coverage area, such as more or fewer terminal devices. This application does not limit this.

[0138] The above-mentioned communication devices, such as Figure 1 The network device 101 and terminal devices 102 to 107 in the embodiment may be configured with multiple antennas. The multiple antennas may include at least one transmitting antenna for sending signals and at least one receiving antenna for receiving signals. In addition, each communication device also includes a transmitter chain and a receiver chain. Those skilled in the art will appreciate that each may include multiple components related to signal transmission and reception (e.g., processors, modulators, multiplexers, demodulators, demultiplexers, or antennas, etc.). Therefore, the network device and the terminal device can communicate using multi-antenna technology.

[0139] Optionally, the wireless communication system 100 may further include other network entities such as a network controller and a mobility management entity, but the embodiments of the present application are not limited thereto.

[0140] To facilitate understanding of the embodiments of the present application, the following briefly describes the physical layer processing of downlink signals before transmission. It should be understood that the downlink signal processing described below can be performed by a network device or by a component configured within the network device (such as a chip or chip system). For ease of explanation, the following collectively refers to the network device.

[0141] The network device can process the codeword in the physical channel. The codeword can be a coded bit that has been encoded (for example, including channel coding). The codeword is scrambled to generate scrambled bits. The scrambled bits are modulated to obtain modulation symbols. The modulation symbols are mapped to multiple layers, or transport layers, through layer mapping. The modulation symbols after layer mapping are precoded to obtain precoded signals. The precoded signals are mapped to multiple REs after resource element (RE) mapping. These REs are then modulated by orthogonal frequency division multiplexing (OFDM) and transmitted through the antenna port.

[0142] It should be understood that the above-described processing of downlink signals is merely exemplary and does not limit the present application. Detailed descriptions of the processing of downlink signals may be found in the prior art, and for brevity, detailed descriptions thereof are omitted here.

[0143] It should be understood that the method provided in the embodiment of the present application can be applied to a system that communicates via multi-antenna technology. For example, Figure 1 The communication system 100 shown in FIG. The communication system may include at least one network device and at least one terminal device. The network device and the terminal device may communicate with each other via a multi-antenna technology.

[0144] It should also be understood that the methods provided in the embodiments of the present application are not limited to communication between network devices and terminal devices, but can also be applied to communication between terminal devices, etc. This application does not limit the scenarios in which the methods are applied. The embodiments shown below are merely for ease of understanding and explanation, and the methods provided in the embodiments of the present application are described in detail using the interaction between a network device and a terminal device as an example.

[0145] It should also be understood that the embodiments shown below do not specifically limit the specific structure of the execution subject of the method provided in the embodiment of the present application, as long as it is possible to communicate according to the method provided in the embodiment of the present application by running a program that records the code of the method provided in the embodiment of the present application, for example. The execution subject of the method provided in the embodiment of the present application may be a terminal device or a network device, or a functional module in the terminal device or the network device that can call and execute the program. For the sake of simplicity, the following description is taken as an example in which the execution subject is a single entity. However, the execution subject of the method provided in the embodiment of the present application may be multiple entities, and these entities may be distributed in different locations. For example, the processing performed by the network device may be performed by at least one of an independent central unit (CU), a distributed unit (DU), and a remote unit (RU).

[0146] To facilitate understanding of the embodiments of the present application, the following is a brief introduction to the terms involved in the embodiments of the present application.

[0147] 1. Idle, connected, and inactive states

[0148] In NR, the UE can be in three states: radio resource control idle state (RRC_IDLE), RRC inactive state (RRC_INACTIVE) and RRC connected state (RRC_CONNECTED).

[0149] The RRC_IDLE state, also known as the idle state, refers to the state in which a terminal device is stationed in a cell but has not yet performed a random access procedure. A terminal device typically enters the idle state after powering on or after an RRC release. When the UE is in the idle state, the air interface connection between the UE and the base station is disconnected, context information is no longer stored, and the UE can only receive broadcast information sent by the base station.

[0150] The RRC_CONNECTED state, also known as the connected state, corresponds to the idle state. The connected state refers to the state in which the terminal device is in after completing the random access procedure but before performing an RRC release. When the terminal device is in the connected state, it establishes an air interface connection with the network device and communicates with the network device based on the air interface connection. When the terminal device is in the idle state, after completing the random access procedure, the terminal device's state transitions to the connected state. When the terminal device is in the connected state, after completing the RRC release, the terminal device's state transitions to the idle state.

[0151] The RRC_INACTIVE state can also be called the inactive state. The inactive state is a state between the connected state and the idle state. For a terminal device in the inactive state, the user plane bearer of the air interface has been suspended, and the user plane bearer and control plane bearer between the RAN and the CN are still maintained. When the terminal device initiates a call or service request, it is necessary to activate the user plane bearer of the air interface and reuse the existing user plane bearer and control plane bearer between the RAN and the CN. When the UE is in the inactive state, the air interface connection between the UE and the base station is disconnected, but the context information continues to be saved. When the UE enters the connected state from the inactive state, it can quickly recover to the connected state based on the saved context information.

[0152] 2. Paging and paging messages

[0153] There is no RRC connection between the UE in idle state and the network. For the UE in inactive state, although an RRC connection is established with the network, the connection is suspended. When the network has downlink data to be sent to the UE in idle or inactive state, the network needs to page the UE through the paging process to notify the UE to establish or restore the RRC connection before data transmission can be performed. In other words, paging is initiated by the network. In NR, paging can be initiated by the core network, which is called core network paging (CN paging), or by the radio access network (RAN), which is called RAN paging.

[0154] When a UE is in the idle state, there is no RRC connection between the UE and the gNB, and no RRC context exists for the UE. In other words, the gNB is unaware of the UE's existence. From the core network's perspective, the UE is in the connection management idle (CM_IDLE) state. For example, this refers to the UE's state within the access and mobility management function (AMF). There is no non-access stratum (NAS) connection between the UE and the core network, but the UE has been assigned a unique identifier within its tracking area (TA), is registered with the AMF, and has a context within the AMF. When the core network needs to send downlink data or downlink NAS signaling to a UE in the CM_IDLE state, the AMF sends a paging message to all gNBs in all TAs to which the UE is registered. The gNB then sends a paging message over the air interface to page the UE. Upon receiving the paging message, a UE in the idle state typically initiates an RRC connection establishment procedure to receive downlink data.

[0155] In the inactive state, although both the UE and gNB maintain RRC context, the RRC connection between the UE and the gNB is suspended. Meanwhile, the connection between the UE and the core network remains intact. From the core network's perspective, the UE is in the CM_CONNECTED state. When the network needs to send data to an inactive UE, such as when downlink data arrives, the network needs to page the UE because the RRC connection is suspended. Since the core network considers the UE to be connected, it does not initiate the paging call. Instead, the RAN node, such as the base station (gNB), initiates the paging call.

[0156] In the inactive state, the last gNB serving the UE maintains the UE context and maintains a connection with the core network. If the last gNB serving the UE receives downlink data or UE-related NAS signaling from the core network while the UE is in the inactive state, the gNB pages the UE on all cells within the RAN-based notification area (RNA) to which the UE belongs. If the RNA includes cells on neighboring gNBs, the gNB sends an Xn application protocol (Xn AP) RAN paging message to the neighboring gNB to notify the neighboring gNB to page the UE on the corresponding cells. Upon receiving the paging message, a UE in the RRC_INACTIVE state typically initiates an RRC connection establishment recovery procedure to receive downlink data. The RAN notification area here refers to the RAN-based notification area managed by the NG-RAN (e.g., gNB), and the NG-RAN is aware of the RNA to which the UE belongs.

[0157] UEs in idle or inactive states support discontinuous reception (DRX) to receive paging messages to reduce power consumption. This DRX is also called paging DRX. The discontinuous reception cycle (DRX cycle) is configured by the network equipment. The DRX cycle is also called the paging cycle. Using DRX, UEs in idle or inactive states will only "wake up" to receive paging messages during pre-defined time periods. At other times, they can remain in a "sleep" state and stop receiving paging messages. This reduces power consumption and improves UE battery life.

[0158] For paging DRX, a UE in idle or inactive state will only attempt to receive the PDCCH scrambled by the paging radio network temporary identifier (P-RNTI) at a specific paging occasion (PO) within each paging cycle. In the NR system, PO is a monitoring occasion (MO) of a set of physical downlink control channels (PDCCH). A PO can contain multiple time slots, for example, a time slot can be a subframe or an orthogonal frequency division multiplexing (OFDM) symbol. The network device can send downlink control information (DCI) for scheduling paging messages in the PO. In addition, a paging frame (PF) is a radio frame that can contain one or more POs or the starting point of a PO. When monitoring the PO, the terminal device first determines the location of the PF, and then determines the location of the PO associated with the PF. It should be noted that a PO associated with a PF may start from within the PF or after the PF, and the UE may determine the PO position it needs to monitor based on the paging configuration parameters and the UE_ID.

[0159] 3. Synchronization Signal Block (SSB)

[0160] SSB, also known as the Physical Broadcast Channel (PBCH) block, consists of a primary synchronization signal (PSS), a secondary synchronization signal (SSS) and a physical broadcasting channel (PBCH), and occupies four symbols in the time domain.

[0161] Figure 2This is a schematic diagram of the content carried by an SSB symbol provided in an embodiment of the present application. The SSB bandwidth is 20 resource blocks (RBs) and contains 240 subcarriers. The first symbol carries PSS, which includes 127 subcarriers, that is, the PSS sequence length is 127, and the PSS only occupies the middle part of the SSB, and no other data or control information is sent on both sides; the second and fourth symbols are physical broadcasting channels (PBCH), which mainly carry system information; the third symbol carries PBCH and SSS at the same time, where the SSS sequence length is 127, the same as the PSS, and both occupy 127 resource elements (REs) in the middle of the SSB. 48 REs are used on both sides of the SSS to send PBCH, and there are intervals of 8 and 9 REs between SSS and PBCH.

[0162] 4. Synchronization signal burst (SS burst)

[0163] The network device sends SSB according to the SSB time domain multiplexing pattern in the pre-configured SS burst. The time domain multiplexing pattern of SSB can be as follows: Figure 3 shown. Figure 3 This is a schematic diagram of an SSB time domain multiplexing pattern provided in an embodiment of the present application.

[0164] SSBs in NR networks are generally sent using multiple beams. There is a transmission cycle for SSBs. For example, the transmission cycle of SSBs can be 20ms. Within each SSB cycle, the network device can send SSBs from multiple different beams in a time-division manner within a short time length. This short time length is called an SS burst. In the NR system, depending on the operating frequency band, SSBs from different beams are multiplexed according to different time domain patterns. For example, in case A, the subcarrier spacing is 15kHz, and the length of an SS burst is 2ms, that is, the network device can send SSBs in two time slots of 1ms in length. A maximum of four SSBs in different directions can be sent in the SS burst, namely SSB0, SSB1, SSB2, and SSB3 in the figure, where the fill part in the figure is the symbol position where the SSB can be sent. It should be understood that in an SS burst, the network device does not necessarily need to send SSBs in all four directions. The network device can configure the number of SSBs actually sent and the symbol position used to send the SSBs through system messages. For example, a network device may send only SSB0 and SSB1, or only SSB1 and SSB3.

[0165] In Cases B and C, the subcarrier spacing is 30 kHz, supporting the two time-domain multiplexing patterns shown in the figure. That is, an SS burst is 2 ms long and contains four 0.5 ms time slots. A network device can send up to eight SSBs in different directions in one SS burst.

[0166] The SSB in each beam direction occupies 4 OFDM symbols in the time domain. The content carried by each OFDM symbol can be as follows: Figure 2 shown.

[0167] 5. Paging frame (PF) and paging occasion (PO)

[0168] The specific time a UE receives a paging message is determined by the paging frame (PF) and the paging occasion (PO). PF represents the frame in which paging is sent. In other words, a UE in idle or inactive state will only receive paging messages on the PO configured / associated / defined by the PF. PO represents the timing for receiving a paging message within a PF configuration. Since paging messages are actually scheduled using P-RNTI-scrambled DCI, one PO corresponds to the detection of S P-RNTI-scrambled DCIs. S is the number of SSBs in an SS burst, which can be obtained through system messages.

[0169] PF is determined by the following formula (1):

[0170] (SFN+PF_offset)mod T=(T div N)*(UE_ID mod N) (1)

[0171] Where SFN represents the system frame number (SFN), PF_offset represents the frame offset of the PF, and T represents the DRX cycle or paging cycle, which is a time unit. This means that a UE can attempt to receive a paging signal one or more times within a time period T. N = min(T,nB), where nB represents the number of PFs within a DRX cycle or paging cycle. The value range of SFN is 0 to 1023. The value range of T is 32, 64, 128, and 256, measured in radio frames. The value of nB is 4T, 2T, T, T / 2, T / 4, T / 8, T / 16, or T / 32, measured in radio frames. UE_ID represents the UE identifier, which can be the 5th generation system architecture evolution-temporary mobile subscriber identity (5G-S-TMSI) modulo 1024 or the full inactive-RNTI (full I-RNTI).

[0172] When an SFN satisfies the above formula, it is considered a PF. The UE will attempt to receive paging on the PO configured for the PF. Each PF can be configured with multiple POs. The parameter Ns is used in the NR to represent the number of POs corresponding to a PF.

[0173] NR uses the parameter Ns to represent the number of POs corresponding to a PF, Ns = 1, 2, 4. Each PO has an index number i_s, which is determined by the following formula (2):

[0174] i_s=floor(UE_ID / N)mod Ns (2)

[0175] It should be noted that the gNB does not send a paging message to the UE at every PO. The UE will detect the paging DCI at the PO to determine whether the gNB has sent a paging message.

[0176] 6. Beam

[0177] Beamforming technology can effectively expand the transmission range of wireless signals and reduce signal interference, thereby achieving higher communication efficiency and increased network capacity. However, in a communication network using beamforming technology, the transmit beam at the transmitter and the receive beam at the receiver must be matched to maximize the gain of the transmitted signals at both ends. Otherwise, high communication efficiency may not be achieved.

[0178] 7. Mapping relationship between SSB, PF and PO

[0179] Each PO in a PF has S monitoring occasions (MO) for paging PDCCH. MO is defined by the search space set of PDCCH. MO represents the possible transmission time of PDCCH. Specifically, MO generally appears periodically, so it can be represented by the occurrence period (which can be in time slots), the time offset in each period, and the time length (which can be in symbols). Figure 4 As shown, Figure 4 This is a diagram of MO occupied symbols provided by this application. The search space set defines an MO period of 2 slots, with a time offset of 1 slot (i.e., MO only appears in odd-numbered slots). In each slot, MO occupies two symbols, which are the first two symbols of a slot. The UE can monitor these symbols to determine whether a paging PDCCH is being sent.

[0180] The number of MOs included in a PO is the same as the number of SSBs configured in the cell, and each SSB corresponds to an MO in the PO. That is, the beam of the paging PDCCH sent in the MO and the corresponding SSB are the same. However, the content of the paging PDCCH sent on different MOs is the same. Therefore, the UE can select the MO with the best reception performance to receive the paging PDCCH based on the SSB beam measurement results, or it can receive multiple paging PDCCHs in a beam polling manner.

[0181] like Figure 5 As shown, Figure 5 This is a diagram of the mapping relationship between SSB, PO, and MO provided by this application. The MO occupancy symbol diagram shows that the cell is configured with 2 SSBs and 4 POs. Therefore, there are two MOs in each PO that can send paging PDCCHs. SSB1 and SSB2 correspond to MO1 and MO2 in a PO respectively.

[0182] Each PF in the cell contains Ns POs, and the cell is configured with S SSBs. Therefore, the actual number of MOs contained in a PF should be N=Ns*M. The specific arrangement of MOs is that the UE will count from the beginning of the PF and determine the symbol position of each MO according to the search space set definition until all N MOs are counted. Figure 6 As shown, Figure 6The following diagram illustrates the relationship between PFs, POs, and MOs. For example, if a PF is configured with four POs and the cell is configured with eight SSBs, then a total of 32 MOs are configured in the PF. These 32 MOs are arranged time-sequentially from the PF. If each MO occupies two symbols in a timeslot, a total of 32 timeslots are required. However, a PF (10ms) has only 20 timeslots. Therefore, some POs defined in a PF, or some MOs in POs, may not actually occur within the PF.

[0183] 8. Paging indication (PI) and Paging Early Indication (PEI)

[0184] Because a UE cannot determine whether the network device has actually sent a page to it before receiving a page, it wakes up at each PO and detects the paging DCI, then receives the paging PDSCH according to the scheduling of the paging DCI. Only after the UE has completely parsed the paging PDSCH data will it know whether the network device has actually sent paging data to the UE. In actual communication networks, the probability of the network device actually sending a page to a UE at each PO is low, for example, around 1%. Therefore, the UE's reception of pages at the other approximately 99% of POs is useless power consumption and is not conducive to power conservation.

[0185] Therefore, a PI can be sent before a PO, and the PI indicates whether to receive paging DCI and / or paging PDSCH in the PO. If the PI indicates that there is no paging in the PO, the UE can enter sleep mode after receiving the PI and no longer need to receive paging DCI and / or paging PDSCH in the PO, thereby saving power.

[0186] To ensure that idle or inactive UEs can successfully receive the PI, they typically perform time-frequency tracking (TSB) using the SSB before receiving the PI. This corrects the time and frequency offset between the UE and the base station, ensuring that any residual T&F offset does not affect the UE's reception of the paging PDCCH and PDSCH. Furthermore, the UE can also perform automatic gain control (AGC) estimation by receiving the SSB to adjust the UE receiver's gain parameters.

[0187] In NR, PEI can realize the function of PI, and PEI may be sent in the form of DCI, SSS or channel state information reference signal (CSI-RS). Among them, using DCI means that the paging indication message is carried in DCI and sent, and using SSS or CSI-RS means that the paging indication message is carried in SSS or SSS, or the physical layer signal carrying the paging indication is sent in a manner similar to SSS or CSI-RS, for example, the time-frequency pattern of the signal carrying the paging indication, the generation sequence method, the resource configuration signaling, etc. are the same or similar to SSS or CSI-RS.

[0188] 9. Pseudo-random sequence generation

[0189] The pseudo-random sequence c(n) commonly used in communication systems is generated based on the first 31 values ​​of x1(n) and x2(n):

[0190] c(n)=(x1(n+N c )+x2(n+N c ))mod 2 (3)

[0191] x1(n+31)=(x1(n+3)+x1(n))mod 2 (4)

[0192] x2(n+31)=(x2(n+3)+x2(n+2)+x2(n+1)+x2(n))mod 2 (5)

[0193] Among them, the first 31 values ​​of x1(n) are x1(0)=1,x1(n)=0,n=1,2,...,30, and the first 31 values ​​of x2(n) will be based on the value c init A 0 to 31-bit value is used to determine Among them, c init Generally, a formula is used to determine, for example, for CSI-RS, c init The value can be determined by the following formula (6):

[0194]

[0195] in, Indicates the index of the symbol where the sequence is located in each time slot, is the time slot index of the sequence in a radio frame (RF), n IDIt is a specific parameter configured by the upper layer for CSI-RS. If it is not configured, the UE uses the cell ID instead. It can be seen that for generating the pseudo-random sequence of CSI-RS, it is only necessary to provide n to the UE. ID That's it.

[0196] 10. Time Window

[0197] A time window represents the length of time after a fixed point in time. It is a network configuration value used to indicate the duration of the PEI. For example, the time window length can be set to the SSB period, and the starting point of the time window can be the time point after the PEI corresponding to the time window is sent, the time point after the PEI is sent and an offset has passed, or the time point after the PEI starts and an offset has passed.

[0198] like Figure 7 As shown, Figure 7 This is a schematic diagram of an example time window provided by this application. For example, Figure 7 In [1], an SSB period is 20ms and an RF is 10ms, so an SSB period contains two RFs. Assume that PEI#1 indicates the PO in the PF of time window #1 (abbreviated as PEI#1 and corresponding to time window #1). Time window #1 contains a complete RF#3, a portion of RF#2, and a portion of RF#4. Any of RF#2, RF#3, and RF#4 can be a PF. Similarly, PEI#2 corresponds to time window #2, and PEI#3 corresponds to time window #3.

[0199] In actual configuration, the time window can be aligned with the position of the SSB period (or with a difference of 10ms), that is, one time window contains two complete RFs. Both RFs can be configured as PFs, such as Figure 8 As shown, Figure 8 This is a schematic diagram of the relationship between PEI and time window provided in this application. For example, Figure 8 In this example, assume that PEI#1 indicates the PO in the PF of time window #1 (referred to as PEI#1 corresponding to time window #1). Time window #1 includes a complete RF#2 and RF#3. Either RF#2 or RF#3 can be a PF. Similarly, PEI#2 corresponds to time window #2, and PEI#3 corresponds to time window #3.

[0200] In order to facilitate understanding of the embodiments of the present application, the following explanations are made.

[0201] First, in this application, for ease of description, when numbering is involved, the numbers may be consecutively numbered starting from 0, starting from 1, or starting from any parameter. It should be understood that the above description is for the convenience of describing the technical solutions provided in the embodiments of this application and is not intended to limit the scope of this application.

[0202] Second, the first, second, and various numerical numbers in the embodiments shown below are merely distinctions for ease of description and are not intended to limit the scope of the embodiments of the present application. For example, to distinguish different indication information, etc.

[0203] Third, in the embodiments described below, "pre-configuration" may include instructions from network device signaling or pre-definition, such as protocol definition. "Pre-definition" may be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in devices (e.g., including terminal devices and network devices). This application does not limit the specific implementation method.

[0204] Fourth, the term "storage" used in the embodiments of this application may refer to storage in one or more memories. The one or more memories may be provided separately or integrated into an encoder or decoder, a processor, or a communication device. The one or more memories may also be provided in part separately and in part integrated into a decoder, a processor, or a communication device. The memory may be any type of storage medium, and this application is not limited thereto.

[0205] Fifth, the "protocol" involved in the embodiments of the present application may refer to a standard protocol in the communication field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems. This application does not limit this.

[0206] Sixth, "at least one" means one or more, and "more" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b and c can mean: a, or b, or c, or a and b, or a and c, or b and c, or a, b and c. Where a, b and c can be single or multiple, respectively.

[0207] Seventh, in the embodiments of the present application, "used for indication" may include being used for direct indication and being used for indirect indication. For example, when describing that a certain indication information is used for indicating information I, it may include that the indication information directly indicates I or indirectly indicates I, but it does not necessarily mean that the indication information carries I.

[0208] The information indicated by the indication information is called the information to be indicated. In the specific implementation process, there are many ways to indicate the information to be indicated, such as but not limited to, directly indicating the information to be indicated, such as the information to be indicated itself or the index of the information to be indicated. The information to be indicated can also be indirectly indicated by indicating other information, wherein there is an association between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, while the other parts of the information to be indicated are known or agreed in advance. For example, it is also possible to use the arrangement order of each piece of information agreed in advance (such as specified in the protocol) to achieve the indication of specific information, thereby reducing the indication overhead to a certain extent. At the same time, it is also possible to identify the common parts of each piece of information and indicate them uniformly to reduce the indication overhead caused by indicating the same information separately.

[0209] In addition, the specific indication method can also be various existing indication methods, such as but not limited to the above-mentioned indication methods and various combinations thereof. As can be seen from the above, for example, when it is necessary to indicate multiple information of the same type, there may be a situation where the indication methods for different information are different. In the specific implementation process, the required indication method can be selected according to specific needs, and the embodiment of the present application does not limit the selected indication method. In this way, the indication method involved in the embodiment of the present application should be understood to cover various methods that can enable the party to be indicated to obtain the information to be indicated.

[0210] The information to be indicated can be sent as a whole, or divided into multiple sub-information and sent separately, and the sending period and / or sending timing of these sub-information can be the same or different. The specific sending method is not limited in this application. Among them, the sending period and / or sending timing of these sub-information can be pre-defined, for example, pre-defined according to a protocol, or can be configured by the transmitting device by sending configuration information to the receiving device. Among them, the configuration information can, for example, but not limited to, include radio resource control signaling, such as radio resource control (RRC) signaling, medium access control (MAC) layer signaling, such as MAC-information element (CE), and physical layer signaling, such as downlink control information (DCI) or a combination of at least two of them.

[0211] Through the introduction of the above system scenarios and technical concepts, it can be seen that when PEI indicates whether PO needs to wake up through the bits carried by DCI, since DCI contains at least 12 bits, it can indicate multiple POs, or multiple groups in a PO (which can be called sub-groups). However, the current solution does not give how the bits in PEI indicate multiple POs or multiple sub-groups in a PO (the sub-groups in the PO can be understood as grouping the UEs that monitor the paging PDCCH in the PO. Each group can be called a PO sub-group. When the PO carries paging data, the PO sub-group in the PO can carry paging data or not); when PEI is sent to the UE using a known sequence in SSS or CSI-RS mode, the UE will perform correlation detection with the known sequence in the time and frequency domain area sent by the SSS or CSI-RS when receiving the PEI. Once a larger correlation value is detected, it can be considered that there is paging on the PO. However, the current solution does not give how multiple sequences in PEI indicate multiple POs or multiple sub-groups in a PO. In response to the above problems, this application proposes the following solutions.

[0212] Figure 9 This is a schematic flow chart of an embodiment of the present application. In this embodiment of the present application, a network device can send paging-related information to a terminal device or a terminal device group, wherein the terminal devices in a terminal device group monitor the same PO (or the same PO subgroup). For the sake of brevity, the following only uses the example of sending paging-related information to a terminal device. It should be understood that the embodiment of the present application is also applicable to the scheme of the network device sending paging to a terminal device group.

[0213] like Figure 9 As shown in method 200, S210, the first network device sends the first information, and the first terminal device UE receives the first information.

[0214] Among them, the first information is used to indicate whether the paging occasion PO subgroup configured by the first paging frame PF carries paging data, the first PF is located in the first time window, the first UE corresponds to the first PO subgroup, and the first PO subgroup belongs to one of the PO subgroups configured by the first PF.

[0215] Exemplarily, the first information is used to indicate whether one or more PF-configured PO subgroups within the first time window carry paging data, wherein the one or more PF-configured PO subgroups may be located within the first time window or may not be located within the first time window.

[0216] For example, the first information may be used to indicate whether all PF-configured PO subgroups within the first time window carry paging data.

[0217] It should be understood that the PO subgroup configured by a PF may also be referred to as the PO subgroup defined by the PF, which refers to all PO subgroups defined or configured on the PF.

[0218] It should be noted that the subgroup in the PO can be understood as grouping the UEs that monitor the paging PDCCH in the PO. Each group can be called a PO subgroup. When there is paging for idle or inactive UEs on the PO, the PO subgroup in the PO may or may not have paging. The PO subgroup in the present application can be replaced by PO. In other words, when there is no group in the PO to which the PO subgroup belongs, the above-mentioned PO subgroup is PO, that is, the scheme regarding the PO subgroup is also applicable to PO.

[0219] In a possible implementation manner, some PO subgroups in the PO subgroups of the first PF configuration are included in a second time window, and the second time window is different from the first time window.

[0220] In this approach, when the first PF configures a large number of POs or PO subgroups, or each PO or PO subgroup includes a large number of monitoring opportunities, the POs or PO subgroups configured by the first PF may span multiple time windows. In this case, the POs or PO subgroups indicated by the first information span multiple time windows. This approach expands the way the first PF configures POs or PO subgroups.

[0221] S220: The first UE determines whether the first information indicates that the first PO subgroup carries paging data.

[0222] Specifically, the first UE determines whether the first information indicating the first PO subgroup carries paging data based on the first PO subgroup and the first association relationship, wherein the first association relationship is used to indicate the correspondence between the first information and the PO subgroup configured by the first PF.

[0223] In one possible embodiment, the type of the first information is downlink control information DCI, and the first association relationship is used to indicate the correspondence between the first information and the PO subgroup configured by the first PF, including: the first association relationship is used to indicate the correspondence between the bit index of the first information and the number of the PO subgroup configured by the first PF.

[0224] It should be noted that the number of the PO subgroup can be the index of the PO subgroup calculated using a formula, or it can be the number corresponding to the PO subgroup after the index is further sorted in a certain order. This application does not limit this.

[0225] In one possible embodiment, the number of bits of the first information is greater than or equal to the number of PO subgroups configured by the first PF, and the bits of the first information correspond one-to-one to the PO subgroups configured by the first PF; or, the number of bits of the first information is less than the number of PO subgroups configured by the first PF, and each bit of at least one bit of the first information corresponds to multiple PO subgroups in the PO subgroups configured by the first PF.

[0226] Exemplarily, when the number of bits of the first information is greater than or equal to the number of PO subgroups configured in the first PF, the bit indexes of the first information can be corresponded one-to-one in ascending or descending order of the number of PO subgroups configured in the first PF.

[0227] Exemplarily, when the number of bits of the first information is less than the number of PO subgroups configured by the first PF, the number of the PO subgroup configured by the first PF can be mapped to the bit index of the first information in a cyclic remainder mapping manner. For example, the number of the first PO subgroup is divided by the number of bits of the first information, and the remainder obtained is m (m is an integer, m is greater than or equal to 0), then the first PO subgroup corresponds to the mth bit of the first information, and the first UE determines whether the corresponding PO or PO subgroup carries paging data based on the mth bit. It can be seen that in this scheme, there is a situation where one bit of the first information corresponds to multiple PO subgroups. The cycle means that, assuming the number of bits of the first information is n, then the remainder of the number of the n+1th PO subgroup divided by the number of bits of the first information is 1, which means that the bit corresponding to the first bit of the first information at this time is the same as the bit of the first information corresponding to the number of the first PO subgroup, that is, a cycle.

[0228] In the above manner, when the first information is sent in the form of DCI, the bit index of the first information (or the numbering of the bits of the first information, which is not limited in this application) can be associated with the number (or index, which is not limited in this application on how to number the PO subgroup or design the index) of the PO subgroup configured by the first PF to form a mapping relationship. The above manner can solve the problem of how to map multiple bits in the first information to the PO or PO subgroup configured by the first PF.

[0229] In a possible embodiment, the type of the first information is a secondary synchronization signal SSS, a tracking reference signal TRS, or a channel state information reference signal CSI-RS, and the first association relationship is used to indicate the correspondence between the first information and the PO subgroup of the first PF configuration, including: the first association relationship is used to indicate the correspondence between the sequence index of the first information and the number of the PO subgroup of the first PF configuration.

[0230] In one possible embodiment, the number of configured sequences of the first information is greater than or equal to the number of PO subgroups configured by the first PF, and the sequences of the first information correspond one-to-one to the PO subgroups configured by the first PF; or, the number of configured sequences of the first information is less than the number of PO subgroups configured by the first PF, and each sequence of at least one sequence of the first information corresponds to multiple PO subgroups in the PO subgroups configured by the first PF.

[0231] It should be understood that the sequence in which the first information is configured means that the network side configures one or more sequences for sending the first information and selects one or more sequences to send the first information.

[0232] Exemplarily, when the number of configured sequences of the first information is greater than or equal to the number of PO subgroups configured by the first PF, the bit indexes of the first information can be corresponded one-to-one in ascending or descending order of the number of PO subgroups configured by the first PF.

[0233] Exemplarily, when the number of configured sequences of the first information is less than the number of PO subgroups configured by the first PF, the number of the PO subgroup configured by the first PF can be mapped to the bit index of the first information in a cyclic remainder mapping manner. For example, the number of the first PO subgroup is divided by the number of sequences configured by the first information, and the remainder obtained is m (m is an integer, m is greater than or equal to 0), then the first PO subgroup corresponds to the mth sequence in the sequence configured by the first information, and the first UE determines whether the corresponding PO or PO subgroup carries paging data based on the mth sequence of the first information.

[0234] In the above manner, when the first information is sent in a sequence, the sequence index of the first information (or the sequence configured for the first information is numbered, or the parameters used to generate the sequence are indexed or numbered, which is not limited in this application) can be associated with the number (or index, which is not limited in this application on how to number the PO subgroup or design the index) of the PO subgroup configured by the first PF to form a mapping relationship. The above manner can solve the problem of how to map multiple sequences configured for the first information to the PO or PO subgroup configured by the first PF.

[0235] In one possible embodiment, the type of the first information is a secondary synchronization signal SSS, a tracking reference signal TRS, or a channel state information reference signal CSI-RS, and the first association relationship is used to indicate the correspondence between the first information and the PO subgroup configured by the first PF, including: the first association relationship is used to indicate the correspondence between the position of the configured resource of the first information and the number of the PO subgroup configured by the first PF.

[0236] In one possible embodiment, the number of positions of the configured resources of the first information is greater than or equal to the number of PO subgroups configured by the first PF, and the positions of the configured resources of the first information correspond one-to-one to the PO subgroups configured by the first PF; or, the number of positions of the configured resources of the first information is less than the number of PO subgroups configured by the first PF, and each position of at least one configured resource of the first information corresponds to multiple PO subgroups in the PO subgroups configured by the first PF.

[0237] Exemplarily, when the number of locations of the configured resources of the first information is greater than or equal to the number of PO subgroups configured by the first PF, the bit indexes of the first information can be corresponded one-to-one in ascending or descending order of the numbers of the PO subgroups configured by the first PF.

[0238] Exemplarily, when the number of locations of the configured resources of the first information is less than the number of PO subgroups configured by the first PF, the number of the PO subgroup configured by the first PF can be mapped to the bit index of the first information in a cyclic remainder mapping manner. For details, please refer to the above description and will not be repeated here.

[0239] It should be understood that the location of the configured resources of the first information means that the network side configures one or more resources for sending the first information, each resource corresponds to a time-frequency position, and the network side selects one or more resources to send the first information.

[0240] In the above manner, when the first information is sent in a serial manner, the location of the configured resources of the first information can be associated with the number (or index, this application does not limit how to number the PO subgroup or design the index) of the PO subgroup configured by the first PF to form a mapping relationship. The above manner can solve the problem of how to map the multiple resources configured by the first information with the PO or PO subgroup configured by the first PF. Enable the UE to determine whether the PO or PO subgroup is paging based on the resource location of its corresponding PO or PO subgroup and the first association relationship.

[0241] In a possible embodiment, the type of the first information is a secondary synchronization signal SSS, a tracking reference signal TRS or a channel state information reference signal CSI-RS, and the first association relationship is used to indicate the correspondence between the first information and the PO subgroup configured by the first PF, including: the first association relationship is used to indicate the correspondence between the sequence index of the first information, the position of the configured resource of the first information and the number of the PO subgroup configured by the first PF.

[0242] In one possible embodiment, the product of the number of configured sequences of the first information and the number of positions of the configured resources of the first information is greater than or equal to the number of PO subgroups configured by the first PF, and the sequences of the first information correspond one-to-one to the PO subgroups configured by the first PF; or, the product of the number of configured sequences of the first information and the number of positions of the configured resources of the first information is less than the number of PO subgroups configured by the first PF, and each sequence in at least one sequence of the first information corresponds to multiple PO subgroups in the PO subgroups configured by the first PF.

[0243] Exemplarily, when the product of the number of configured sequences of the first information and the number of configured resource positions of the first information is greater than or equal to the number of PO subgroups configured by the first PF, different sequences of different resource positions configured by the first information can be corresponded one-to-one in ascending or descending order of the number of the PO subgroups configured by the first PF.

[0244] Exemplarily, when the product of the number of configured sequences of the first information and the number of resource locations configured for the first information is less than the number of PO subgroups configured for the first PF, the numbers of the PO subgroups configured for the first PF can be mapped to different sequences of different resource locations configured for the first information in a cyclic remainder mapping manner. For details, please refer to the above description and will not be repeated here.

[0245] In the above approach, when multiple sequences can be sent on each resource, the product of the number of configured sequences of the first information, the number of resource locations for which the first information is configured, and the number of PO subgroups configured for the first PF determines the mapping relationship between the first information and the PO subgroups configured for the first PF. This approach solves the problem of how to map the first information to the PO or PO subgroup configured for the first PF when each of the multiple resources configured for the first information is configured to send multiple sequences.

[0246] In method 200, by defining the content indicated by the first information, the UE is enabled to obtain the correspondence between the first information and the PO subgroup configured by the first PF based on the first association relationship. Furthermore, the UE can obtain whether the PO or PO subgroup corresponding to the UE indicated by the first information carries paging data (or whether paging exists). The above solution can solve the mapping problem when the first information indicates multiple POs or PO subgroups.

[0247] In the current solution of PEI indicating PO, there is a situation where the PO indicated by PEI occupies a long time in the time domain, for example Figure 12In the figure, PEI#0 is used to indicate PO0, PO1, PO2, and PO3. These POs occupy multiple RFs. There is at least a 30ms delay between MO0 of PO0 and MO0 of PO3. PO3 is far away from PEI#0, which brings two problems: Problem 1: The UE needs to switch to sleep mode after monitoring PEI, and then switch back to normal working mode when PO arrives. When the number of POs defined by PF is large, the UE needs to switch states back and forth, which will increase the power consumed by the UE; Problem 2: When the time interval between PO#3 and the corresponding PEI#0 is large, if no paging arrives at the base station before PEI#0, PEI#0 will indicate that PO#3 has no paging. If a paging suddenly arrives at the base station between PEI#0 and PO#3, regardless of whether PO#3 carries paging data, the UE will usually not receive PO#3 according to the instruction of PEI#0. The UE can only wait until the PO in the next discontinuous reception (DRX) cycle to receive the paging. It can be seen that if the distance between the PEI and the PO is too large, a certain paging delay will be caused.

[0248] To address the above issues, this application also proposes a method for PEI to indicate multiple POs or multiple PO subgroups, such as Figure 10 As shown in method 300, Figure 10 This is another schematic flow chart of an embodiment of the present application.

[0249] S310, the first network device sends and the first terminal device UE receives the first information.

[0250] The first information is used to indicate whether the paging occasion PO subgroup included in the first time window carries paging data, the first UE corresponds to the first PO subgroup, and the first PO subgroup belongs to one of the PO subgroups included in the first time window.

[0251] It should be understood that the PO subgroups included in the first time window mentioned above refer to all PO subgroups included in the first time window, that is, all PO subgroups within the first time window in the time domain.

[0252] It should be noted that, in the above manner, the PO subgroups included in the first time window may be PO subgroups with different PF configurations.

[0253] It should be noted that in the above method, the number of PO subgroups contained in different time windows may be different, which means that the number of PO subgroups indicated by different first information may be different. Therefore, the UE needs to obtain the number of PO subgroups contained in each time window, which can be calculated by the UE, or the network side can send an indication information to indicate the number of PO subgroups contained in the time window to determine the mapping relationship between the first information and the PO subgroups contained in the time window.

[0254] It should be noted that the subgroup in the PO can be understood as grouping the UEs that monitor the paging PDCCH in the PO. Each group can be called a PO subgroup. When there is paging for idle or inactive UEs on the PO, the PO subgroup in the PO may or may not have paging. The PO subgroup in the present application can be replaced by PO. In other words, when there is no group in the PO to which the PO subgroup belongs, the above-mentioned PO subgroup is PO, that is, the scheme regarding the PO subgroup is also applicable to PO.

[0255] S320: The first UE determines a first association relationship.

[0256] Specifically, the first UE determines the first association relationship based on the number of PO subgroups included in the first time window, and the first association relationship is used to indicate the correspondence between the first information and the PO subgroups included in the first time window.

[0257] S330: The first UE determines whether the first information indicates that the first PO subgroup carries paging data.

[0258] Specifically, the first UE determines, based on the first PO subgroup and the first association relationship, whether the first information indicates that the first PO subgroup carries paging data.

[0259] In a possible implementation manner, the first monitoring opportunity MO corresponding to each PO subgroup in the PO subgroups included in the first time window is included in the first time window.

[0260] In this solution, when the MO corresponding to a PO or PO subgroup included in the first time window is located in multiple time windows, and these multiple time windows correspond to multiple first information, it can be specified which first information indicates the PO or PO subgroup. As shown in the above solution, the PO or PO subgroup is indicated by the first information corresponding to the time window in which the first MO corresponding to the PO or PO subgroup is located. This solution can make the content indicated by the first information more accurate.

[0261] In a possible embodiment, the type of the first information is downlink control information DCI, and the first association relationship is used to indicate the correspondence between the first information and the PO subgroup contained in the first time window, including: the first association relationship is used to indicate the correspondence between the bit index of the first information and the number of the PO subgroup contained in the first time window.

[0262] It should be noted that the number of the PO subgroup can be the index of the PO subgroup calculated using a formula, or it can be the number corresponding to the PO subgroup after the index is further sorted in a certain order. This application does not limit this.

[0263] In one possible embodiment, the number of bits of the first information is greater than or equal to the number of PO subgroups contained in the first time window, and the bits of the first information correspond one-to-one to the PO subgroups contained in the first time window; or, the number of bits of the first information is less than the number of PO subgroups contained in the first time window, and each bit of at least one bit of the first information corresponds to multiple PO subgroups in the PO subgroups contained in the first time window.

[0264] Exemplarily, when the number of bits of the first information is greater than or equal to the number of PO subgroups contained in the first time window, the bit indexes of the first information can be corresponded one-to-one in ascending or descending order of the number of PO subgroups contained in the first time window.

[0265] Exemplarily, when the number of bits of the first information is less than the number of PO subgroups contained in the first time window, the number of the PO subgroup contained in the first time window can be mapped to the bit index of the first information in a cyclic remainder mapping manner. For example, the number of the first PO subgroup is divided by the number of bits of the first information, and the remainder obtained is m (m is an integer, m is greater than or equal to 0), then the first PO subgroup corresponds to the mth bit of the first information, and the first UE determines whether the corresponding PO or PO subgroup carries paging data based on the mth bit.

[0266] In the above manner, when the first information is sent in the form of DCI, the bit index of the first information (or the numbering of the bits of the first information, which is not limited in this application) can be associated with the number (or index, which is not limited in this application on how to number the PO subgroup or design the index) of the PO subgroup included in the first time window to form a mapping relationship. The above manner can solve the problem of how to map multiple bits in the first information to the PO or PO subgroup included in the first time window.

[0267] In a possible embodiment, the type of the first information is a secondary synchronization signal SSS, a tracking reference signal TRS, or a channel state information reference signal CSI-RS, and the first association relationship is used to indicate the correspondence between the first information and the PO subgroup contained in the first time window, including: the first association relationship is used to indicate the correspondence between the sequence index of the first information and the number of the PO subgroup contained in the first time window.

[0268] In one possible embodiment, the number of configured sequences of the first information is greater than or equal to the number of PO subgroups contained in the first time window, and the sequences of the first information correspond one-to-one to the PO subgroups contained in the first time window; or, the number of configured sequences of the first information is less than the number of PO subgroups contained in the first time window, and each sequence in at least one sequence of the first information corresponds to multiple PO subgroups in the PO subgroups contained in the first time window.

[0269] It should be understood that the sequence in which the first information is configured means that the network side configures one or more sequences for sending the first information and selects one or more sequences to send the first information.

[0270] Exemplarily, when the number of configured sequences of the first information is greater than or equal to the number of PO subgroups contained in the first time window, the bit indexes of the first information can be corresponded one-to-one in ascending or descending order of the numbers of the PO subgroups contained in the first time window.

[0271] Exemplarily, when the number of configured sequences of the first information is less than the number of PO subgroups contained in the first time window, the numbers of the PO subgroups contained in the first time window can be mapped to the bit indexes of the first information in a cyclic remainder mapping manner. For example, the number of the first PO subgroup is divided by the number of sequences configured for the first information, and the remainder obtained is m (m is an integer, m is greater than or equal to 0), then the first PO subgroup corresponds to the mth sequence in the sequence configured for the first information, and the first UE determines whether the corresponding PO or PO subgroup carries paging data based on the mth sequence of the first information.

[0272] In the above manner, when the first information is sent in a sequence, the sequence index of the first information (or the sequence configured for the first information is numbered, which is not limited in this application) can be associated with the number (or index, which is not limited in this application on how to number or design the index for the PO subgroup) of the PO included in the first time window to form a mapping relationship. The above manner can solve the problem of how to map multiple sequences configured for the first information and the POs or PO subgroups included in the first time window.

[0273] In a possible embodiment, the type of the first information is a secondary synchronization signal SSS, a tracking reference signal TRS, or a channel state information reference signal CSI-RS, and the first association relationship is used to indicate the correspondence between the first information and the PO subgroup contained in the first time window, including: the first association relationship is used to indicate the correspondence between the position of the configured resource of the first information and the number of the PO subgroup contained in the first time window.

[0274] In one possible embodiment, the number of positions of the configured resources of the first information is greater than or equal to the number of PO subgroups contained in the first time window, and the positions of the configured resources of the first information correspond one-to-one to the PO subgroups contained in the first time window; or, the number of positions of the configured resources of the first information is less than the number of PO subgroups contained in the first time window, and each position of at least one configured resource of the first information corresponds to multiple PO subgroups in the PO subgroups contained in the first time window.

[0275] It should be understood that the location of the configured resources of the first information means that the network side configures one or more resources for sending the first information, each resource corresponds to a time-frequency position, and the network side selects one or more resources to send the first information.

[0276] Exemplarily, when the number of locations of the configured resources of the first information is greater than or equal to the number of PO subgroups contained in the first time window, the bit indexes of the first information can be corresponded one-to-one in ascending or descending order of the numbers of the PO subgroups contained in the first time window.

[0277] Exemplarily, when the number of locations of the configured resources in the first information is less than the number of PO subgroups included in the first time window, the numbers of the PO subgroups included in the first time window can be mapped to the bit indexes of the first information in a cyclic remainder mapping manner. For details, please refer to the above description and will not be repeated here.

[0278] In the above method, when the first information is sent in a serial manner, the location of the configured resource of the first information can be associated with the number (or index, this application does not limit how to number the PO subgroup or design the index) of the PO subgroup contained in the first time window to form a mapping relationship. The above method can solve the problem of how to map the multiple resources configured by the first information with the PO or PO subgroup contained in the first time window. Enable the UE to determine whether the PO or PO subgroup is paging based on the resource location of its corresponding PO or PO subgroup and the first association relationship.

[0279] In a possible embodiment, the type of the first information is a secondary synchronization signal SSS, a tracking reference signal TRS or a channel state information reference signal CSI-RS, and the first association relationship is used to indicate the correspondence between the first information and the PO subgroup contained in the first time window, including: the first association relationship is used to indicate the correspondence between the sequence index of the first information, the position of the configured resource of the first information and the number of the PO subgroup contained in the first time window.

[0280] In one possible embodiment, the product of the number of configured sequences of the first information and the number of positions of the configured resources of the first information is greater than or equal to the number of PO subgroups contained in the first time window, and the sequences of the first information correspond one-to-one to the PO subgroups configured by the first PF; or, the product of the number of configured sequences of the first information and the number of positions of the configured resources of the first information is less than the number of PO subgroups contained in the first time window, and each sequence in at least one sequence of the first information corresponds to multiple PO subgroups in the PO subgroups contained in the first time window.

[0281] Exemplarily, when the product of the number of configured sequences of the first information and the number of configured resource positions of the first information is greater than or equal to the number of PO subgroups contained in the first time window, different sequences of different resource positions configured with the first information can be corresponded one-to-one in ascending or descending order of the numbers of the PO subgroups contained in the first time window.

[0282] For example, when the product of the number of configured sequences of the first information and the number of resource locations configured for the first information is less than the number of PO subgroups included in the first time window, the numbers of the PO subgroups included in the first time window can be mapped to different sequences of different resource locations configured for the first information in a cyclic remainder mapping manner. For details, please refer to the above description and will not be repeated here.

[0283] In the above approach, when multiple sequences can be sent on each resource, the product of the number of configured sequences of the first information, the number of resource locations configured for the first information, and the number of PO subgroups included in the first time window determines the mapping relationship between the first information and the PO subgroups included in the first time window. The above approach solves the problem of how to map the first information to the POs or PO subgroups included in the first time window when each of the multiple resources configured for the first information is configured to send multiple sequences.

[0284] In method 300, by defining the content indicated by the first information, the UE is enabled to obtain the correspondence between the first information and the PO subgroup (or PO) contained in the first time window based on the first association relationship. Further, the UE can obtain whether the PO or PO subgroup corresponding to the UE indicated by the first information carries paging data (or whether paging exists). The above scheme can solve the mapping problem when the first information indicates multiple POs or PO subgroups. On the other hand, when the number of POs configured by the PF in the first time window is too large or the PO configured by the PF includes too many MOs, the PO configured by the PF spans a long time, which may cause paging delays. The above scheme can reduce the impact of the above paging delays by making the PO or PO subgroup indicated by the first information use the time window as the granularity.

[0285] The above method 200 and method 300 will be described in detail below with reference to specific embodiments.

[0286] like Figure 11 The method 400 shown, Figure 11 This is a schematic flow chart provided in an embodiment of the present application.

[0287] S410, UE#1 obtains information #1.

[0288] Information #1 is used to indicate time window #0. Information #1 includes one or more of the following information:

[0289] The starting time point of the time window and the length of the time window.

[0290] In one possible implementation, information #1 includes the starting time point of the time window, and the length of the time window may be predefined or preconfigured. For example, the length of the time window is preconfigured to 20ms. UE #1 may grasp the position of the time window based on the fixed configuration length of 20ms of the time window.

[0291] In a possible implementation, information #1 includes the starting time point of the time window and the length of the time window. UE #1 can grasp the position of the time window based on information #1.

[0292] Exemplarily, the starting time point of the time window may be the moment when the sending of information #2 is completed, or may be the moment when the sending of information #2 is completed after an offset.

[0293] In a possible implementation, information #1 is included in higher-layer signaling, where the higher-layer signaling may be a system message or a radio resource control (RRC) signaling.

[0294] S420, UE#1 determines the PF in the time window corresponding to information #1.

[0295] Specifically, UE#1 determines whether the SFN of the RF in time window #0 satisfies the above formula (1). If so, the RF is considered to be a PF.

[0296] S430, network device #1 sends information #2, and UE #1 receives information #2.

[0297] Specifically, information #2 is used to indicate whether there is paging (also referred to as whether it carries paging data) for the PO or PO subgroup defined in the PF within time window #0 (or the PO or PO subgroup configured in the PF).

[0298] The PO or PO subgroup defined in the PF (or referred to as the PO or PO subgroup configured in the PF) means that the PO or PO subgroup is determined based on the search space set corresponding to the PF and the above formula (2).

[0299] It should be noted that the present application does not limit the relationship between the PO subgroup defined in a PF and the time domain position of the PF, which means that all PO subgroups in the defined PO subgroup may be included in the time window, or some PO subgroups in the defined PO subgroup may be included in the time window, and some PO subgroups may not be included in the time window.

[0300] In a possible implementation, information #2 is used to indicate the PO or PO subgroup defined in one or more PFs within time window #0.

[0301] When there is only one PF in time window #0, information #2 is used to indicate the PO or PO subgroup defined in the PF in time window #0.

[0302] When there are multiple PFs within time window #0, information #2 can be used to indicate the PO or PO subgroup defined in one of the multiple PFs within the time window #0, and can also be used to indicate the PO or PO subgroup defined in some of the multiple PFs. In this case, the remaining PFs in the multiple PFs require other information to indicate, that is, time window #0 corresponds to multiple pieces of information at this time, and each piece of information is used to indicate the PO or PO subgroup defined in one or more PFs within time window #0.

[0303] When there are multiple PFs in time window #0, information #2 may also be used to indicate the POs or PO subgroups defined in all PFs in the time window #0.

[0304] It should be noted that all PFs within the time window refer to all PFs whose time domain positions are included in the time window.

[0305] The following description will be made by taking an example where information #2 is used to indicate whether all PO subgroups defined by PFs within time window #0 carry paging data.

[0306] It should be noted that when a PO has no subgroup, the PO subgroup can be considered as the PO.

[0307] For example, information #2 may be PEI or PI, or other information having the above functions. In the embodiment of the present application, the following solution is introduced by taking information #2 being PEI as an example.

[0308] In a possible implementation, UE# determines the PEI to be received according to the detected PO subgroup (or PO).

[0309] The following assumes that there is only one PF in a time window, and takes the time position of the time window and the SSB cycle as an example to illustrate the above time window, the time window and PF, and the PF and all the POs defined by it, as follows: Figure 12 As shown, Figure 12 This is a configuration diagram of PEI, PF and PO provided in this application.

[0310] Figure 12 In the example, the time window of PEI is one SSB period, and the start time of the time window is the start time of the first SS burst after the PEI. One PF is configured with 4 POs, and each PO contains 4 MOs.

[0311] For example, SSB cycle #1 includes RF#2 and PF#1. SSB cycle #1 is 20ms, and the duration of RF#2 and PF#1 is 10ms. The start time of RF#2 is aligned with the start time of SSB cycle #1, the end time of RF#2 is aligned with the start time of PF#1, and the end time of PF#1 is aligned with the end time of SSB cycle #1. Time window #0 is aligned with the time position of SSB cycle #1, and time window #0 includes the complete RF#2 and PF#1. PEI#0 is used to indicate whether the PO defined in all PFs within time window #0 carries paging data. If there are two PO subgroups in PO0, PEI#0 is also used to indicate whether the PO subgroups defined in all PFs within time window #0 carry paging data.

[0312] Among them, it can be seen that all PFs in time window #0 only include PF#1. The POs defined by PF#1 include PO1, PO2, PO3, and PO4, and each PO includes 4 MOs. It should be noted that although PO3 and PO4 do not appear in PF#1 (PO3 and PO4 appear in RF#3), they still belong to the PO defined by PF#1. Therefore, PF#1 defines 4 POs, each of which contains 4 MOs. In addition to indicating whether PO1 and PO2 carry paging data, PEI#0 is also used to indicate whether PO3 and PO4 carry paging data. That is, PEI#0 is used to indicate whether the PO (or PO subgroup) defined by PF#1 carries paging data. It can be seen that the PO (or PO subgroup) defined by the PF does not necessarily appear in its corresponding time window, nor does it necessarily appear on its corresponding PF.

[0313] For example, Figure 13 As shown, Figure 13 This is another configuration diagram of PEI, PF and PO provided in this application.

[0314] Figure 13 In the example, the time window of PEI is one SSB period, and the start time of the time window is the start time of the first PF after the PEI. One PF is configured with 4 POs, and each PO contains 8 MOs.

[0315] exist Figure 13 In the figure, SSB cycle #0 includes RF#0 and PF#0, SSB cycle #0 is 20ms, the time length of RF#0 and RF#0 is 10ms, and the start time of RF#0 is aligned with the start time of SSB cycle #0, the end time of RF#0 is aligned with the start time of PF#0, the end time of PF#0 is aligned with the end time of SSB cycle #0, the start time of time window #0 is aligned with the start time of PF#0, the length of time window #0 is 20ms, including PF#0 and RF#1, and PEI#0 is used to indicate whether the PO defined in all PFs within time window #0 carries paging data.

[0316] It can be seen that the PO defined by PF#0 includes PO1, PO2, PO3 and PO4, and each PO includes 8 MOs. It should be noted that although PO2, PO3 and PO4 do not appear in PF#0 (PO2 appears in RF#1, PO3 appears in RF#2, and PO4 appears in RF#3), they still belong to the PO defined by PF#0. Therefore, PF#0 defines 4 POs, each of which contains 8 MOs. PEI#0 is used to indicate whether PO1, PO2, PO3 and PO4 defined by PF#0 carry paging data.

[0317] S440, UE#1 determines mapping relationship #1.

[0318] Specifically, UE#1 determines mapping relationship #1, where mapping relationship #1 is used to indicate the mapping relationship between the PO or PO subgroup corresponding to PEI#0 and PEI#0.

[0319] It should be noted that mapping relationship #1 may be predefined or preconfigured, and UE #1 directly uses the predefined or preconfigured mapping relationship for subsequent operations. For example, which method in rule #1 is used as mapping relationship #1 may be predefined or preconfigured in UE #1.

[0320] Rule #1 includes the following methods:

[0321] Method 1

[0322] When PEI is sent in the form of PDCCH / DCI, the mapping relationship between PEI and PO (or PO subgroup) is determined based on the number of bits of PEI and the number of PO (or PO subgroup) defined by all PFs in time window #0 (when there is only one PO subgroup in the PO, the number of PO subgroups is the number of POs).

[0323] Suppose there are K PFs in the time window corresponding to PEI, each PF is configured with N POs, and each PO can be divided into M subgroups, where K>=1, N>=1, M>=1, then the PF in the time window corresponding to PEI is configured with a total of KMN PO subgroups (when M=1, one PO is equivalent to one PO subgroup).

[0324] The following is an explanation of the scheme by taking the mapping method between PEI and PO subgroups as an example. The mapping method between PEI and PO can be deduced based on the above description of the relationship between PO and PO subgroups, which will not be described in detail in this application. In addition, when PO is not grouped, the following scheme related to PO subgroups can be applied to PO, which will not be described in detail in this application. For example, PO1 is divided into two PO subgroups, namely PO1 subgroup #1 and PO1 subgroup #2. PO1 carries paging data. The bit corresponding to PO1 subgroup #1 in the PEI indicates the presence of paging, and the bit corresponding to PO1 subgroup #2 in the PEI indicates the absence of paging. Then the UE corresponding to PO1 subgroup #1 monitors PO1, and the UE corresponding to PO1 subgroup #2 does not monitor PO1.

[0325] (a) If the PEI contains L bits, when L>=KMN, the numbers of each PO subgroup are mapped to each bit (bit index) of the PEI in a certain order.

[0326] For example, if the index of the PF to which a PO subgroup belongs, the index of the PO contained in the PF, and the subgroup index in the PO are k, n, and m respectively, the number (index) of the PO subgroup can be calculated according to the following formula (7):

[0327] index=k*MN+n*M+m (7)

[0328] Among them, the PF index can be represented by the SFN number of the RF where the PF is located, and the PO index can be represented by i_s; the PO subgroup index (group_index) can use the subgroup division method to determine the specific index value, for example, group_index = UE_IDmodM, where UE_ID is the identifier value of the UE, and M is the number of subgroups configured in the PO.

[0329] In a possible implementation, the numbers of the PO subgroups are mapped to each bit (bit index) of the PEI in ascending or descending order.

[0330] In a possible implementation, the numbers of the PO subgroups are mapped to each bit (bit index) of the PEI in a mixed ascending and descending order.

[0331] The following example illustrates how to map the numbers of the PO subgroups to each bit (bit index) of the PEI in ascending or descending order.

[0332] Assuming that the PO subgroups are numbered 0-7 and the bit index of PEI is 0-11, the numbers of each PO subgroup are mapped to each bit (bit index) of PEI in ascending order, that is, the bit corresponding to a subgroup is determined in ascending order of PF index, PO index in each PF, and PO subgroup index in each PO, as shown in Table 1.

[0333] Table 1

[0334] PO subgroup number PEI Bit Index 0 0 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 9 10 11

[0335] As can be seen from Table 1, the PO subgroup numbers are first arranged in ascending order, and the PEI bit indices are also arranged in ascending order. Then, the PO subgroup numbers are mapped to the PEI bit indices in sequence, that is, the smallest PO subgroup number corresponds to the smallest PEI bit index. For example, PO subgroup number '0' corresponds to PEI bit index '0', and PO subgroup number '7' corresponds to PEI bit index '7'. Since the number of PEI bits is greater than the number of PO subgroups, PEI bit indices '8' to '11' do not have corresponding PO subgroup numbers.

[0336] Assuming that the PO subgroups are numbered 0-7 and the bit index of PEI is 0-11, the numbers of each PO subgroup are mapped to each bit (bit index) of PEI in descending order, that is, the bit corresponding to a subgroup is determined in descending order of PF index, PO index in each PF, and PO subgroup index in each PO, as shown in Table 2.

[0337] Table 2

[0338] PO subgroup number PEI Bit Index 7 0 6 1 5 2 4 3 3 4 2 5 1 6 0 7 8 9 10 11

[0339] As can be seen from Table 2, the PO subgroup numbers are first arranged in descending order, and the PEI bit indices are arranged in ascending order. Then, the PO subgroup numbers are mapped to the PEI bit indices in sequence, that is, the largest PO subgroup number corresponds to the smallest PEI bit index. For example, PO subgroup number '7' corresponds to PEI bit index '0', and PO subgroup number '0' corresponds to PEI bit index '7'. Since the number of PEI bits is greater than the number of PO subgroups, PEI bit indices '8' to '11' do not have corresponding PO subgroup numbers.

[0340] The following example illustrates how to map the numbers of each PO subgroup to each bit (bit index) of the PEI in a manner that mixes ascending and descending orders.

[0341] As Figure 14 shown, Figure 14 FIG. is a schematic diagram of the mapping relationship between the numbers of PO subgroups and the PEI bit indices provided in this application. Suppose there are two PFs within a time window, with indices '0' and '1' respectively. Each PF contains two POs, with indices '0' and '1' respectively. Each PO contains two PO subgroups, with indices '0' and '1' respectively. According to formula (6), the numbers of the PO subgroups are successively '0', '1', '2', '3', '4', '5', '6', '7'. For the numbers of each PO subgroup, their PO subgroup indices, the indices of the POs to which they belong, and the indices of the PFs to which they belong, refer to Figure 14 shown. Map the numbers of the PO subgroups to the bits of the PEI in ascending order of PF index and descending order of PO index and PO subgroup index. That is, first map the numbers of the PO subgroups corresponding to PF index '0' to PEI bit indices '0 - 3', and map the numbers of the PO subgroups corresponding to PF index '1' to PEI bit indices '4 - 7'; then map the numbers of the PO subgroups corresponding to PF index '0' and PO index '1' to PEI bit indices '0 - 1', map the numbers of the PO subgroups corresponding to PF index '0' and PO index '0' to PEI bit indices '2 - 3', map the numbers of the PO subgroups corresponding to PF index '1' and PO index '1' to PEI bit indices '4 - 5', map the numbers of the PO subgroups corresponding to PF index '1' and PO index '0' to PEI bit indices '6 - 7'; finally, map the number of the PO subgroup corresponding to PF index '0', PO index '1', and PO subgroup index '1' to PEI bit index '0'. For the others, refer to the above description and will not be elaborated here. Among them, PEI bit indices '8' - '11' are the remaining bit indices and have no corresponding PO subgroup numbers. The result of mapping the numbers of the PO subgroups to the PEI bit indices in the above manner is shown in Table 3.

[0342] Table 3

[0343] PO subgroup number PEI Bit Index 3 0 2 1 1 2 0 3 7 4 6 5 5 6 4 7

[0344] (b) If the PEI contains L bits, when L < KMN, map the numbers of each PO subgroup to each bit (bit index) of the PEI in a many - to - one manner.

[0345] In a possible implementation manner, use the remainder mapping method to map the numbers of each PO subgroup to each bit (bit index) of the PEI in a many - to - one manner.

[0346] Specifically, the PO subgroup number is modulo L to obtain the remainder y, that is, y = index mod L, y = 0, 1, ..., L-1, at this time L-1> = y, and the mapping method of the remainder y and L bits can refer to the description of the mapping method of the PO subgroup number and L bits in the above method (a), which will not be repeated here.

[0347] The above method is described below using the PO subgroup number of '0'-'7' and the PEI bit index of '0'-'3' as an example, as shown in Table 4.

[0348] Table 4

[0349] PO subgroup number remainder y PEI Bit Index 0 0 0 1 1 1 2 2 2 3 3 3 4 0 0 5 1 1 6 2 2 7 3 3

[0350] As can be seen from Table 4, PO subgroup numbers '0' and '4' are indicated by the bit with PEI bit index '0', PO subgroup numbers '1' and '5' are indicated by the bit with PEI bit index '1', PO subgroup numbers '2' and '6' are indicated by the bit with PEI bit index '2', and PO subgroup numbers '3' and '7' are indicated by the bit with PEI bit index '3'.

[0351] In a possible implementation, a group mapping method is used to map the numbers of the PO subgroups to each bit (bit index) of the PEI in a many-to-one manner.

[0352] Specifically, the PO subgroups are grouped according to their numbers and divided into L groups, each group being indicated by its corresponding PEI bit.

[0353] For example, the PO subgroups are numbered '0'-'7' and the PEI bit index is '0'-'2' (L is 3), then the PO subgroups numbered '0'-'2' are divided into the '0'th group, indicated by the bit with the PEI bit index of '0', the PO subgroups numbered '3'-'5' are divided into the '1'th group, indicated by the bit with the PEI bit index of '1', and the PO subgroups numbered '6'-'7' are divided into the '2'th group, indicated by the bit with the PEI bit index of '2'.

[0354] This application does not limit the grouping method.

[0355] It should be noted that the above-mentioned method of calculating the number of PO subgroups is only an example, and this application does not limit it. The number of PO subgroups can also be agreed upon by UE#1 and network device #1 or indicated by network device #1.

[0356] Method 2

[0357] When PEI is sent using SSS, TRS or CSI-RS, the mapping relationship between PEI and PO subgroups is determined based on the number of sequences configured for PEI and the number of PO subgroups defined by all PFs in time window #0.

[0358] The mapping method between the PEI sequence index and the PO subgroup number is described in Method 1 and will not be repeated here.

[0359]

[0360]

[0361] In a possible implementation, the UE determines the sequence index of the PEI according to the sequence generation parameter broadcast by the network device #1.

[0362] Method 3

[0363] When PEI is sent using SSS, TRS or CSI-RS, the mapping relationship between PEI and PO subgroups is determined based on the number of resource locations where PEI is configured and the number of PO subgroups defined by all PFs in time window #0.

[0364] The resources include time domain resources and / or frequency domain resources.

[0365] (a) The mapping relationship between PEI and PO subgroup is determined according to the time domain resource (time domain location) where PEI is configured and the number of PO subgroups defined by all PFs in time window #0.

[0366] Specifically, the number corresponding to each resource configured by the PEI is determined according to the time domain position of the resource, and the mapping relationship with the PO (or PO subgroup) is determined according to the number. Among them, the mapping relationship with the PO subgroup according to the number is determined according to the description of determining the mapping relationship with the PO subgroup according to the bit index of the PEI in the above-mentioned method 1, which is not repeated here.

[0367] For example, the time domain position of each resource configured with PEI is numbered in the order of precedence. Figure 15 As shown, Figure 15This is a resource configuration diagram provided by this application. The time domain positions of resources #5 and #6 are earlier than the time domain positions of resources #3 and #4, and the time domain positions of resources #3 and #4 are earlier than the time domain positions of resources #1 and #2. That is, the network device sends resources #5 and #6 earlier than resources #3 and #4, and the network device sends resources #3 and #4 earlier than resources #1 and #2. Therefore, resources #5 and #6 can be numbered 0, resources #3 and #4 can be numbered 1, and resources #1 and #2 can be numbered 2. Alternatively, resources #5 and #6 can be numbered 2, resources #3 and #4 can be numbered 1, and resources #1 and #2 can be numbered 0. This method allows multiple configured resources to indicate the same PO subgroup.

[0368] (b) The mapping relationship between PEI and PO subgroups is determined according to the frequency domain resources (frequency domain position) configured by PEI and the number of PO subgroups defined by all PFs in time window #0.

[0369] Specifically, the number corresponding to each resource configured by PEI is determined according to the frequency domain position of the resource, and the mapping relationship with the PO subgroup is determined according to the number. Among them, the mapping relationship with the PO subgroup according to the number is determined according to the description of determining the mapping relationship with the PO subgroup according to the bit index of PEI in the above method 1, which will not be repeated here.

[0370] For example, the frequency domain position of each resource is numbered in order of size. Figure 15 As shown in the figure, the frequencies of resources #2, #4, and #6 are higher than those of resources #1, #3, and #5. Therefore, resources #2, #4, and #6 can be numbered 2, and resources #1, #3, and #5 can be numbered 1. Alternatively, resources #2, #4, and #6 can be numbered 1, and resources #1, #3, and #5 can be numbered 2. This method allows multiple configured resources to indicate the same PO subgroup.

[0371] (c) The mapping relationship between PEI and PO subgroups is determined based on the time domain resources (time domain position) and frequency domain resources (frequency domain position) configured by PEI and the number of PO subgroups defined by all PFs in time window #0.

[0372] Specifically, the number corresponding to each resource is determined according to the time domain position and frequency domain position of each configured resource, and the mapping relationship with the PO subgroup is determined according to the number. Among them, the mapping relationship with the PO subgroup according to the number is determined according to the description of determining the mapping relationship with the PO subgroup according to the bit index of the PEI in the above-mentioned method 1, which will not be repeated here.

[0373] In a possible implementation, numbering can be performed in the time domain first and then in the frequency domain, for example Figure 15 As shown, there are several ways, for example:

[0374] Method a

[0375] Resources with higher frequencies in the same time domain position are numbered higher, while resources with earlier frequencies (earlier time domain positions) in the same frequency domain position are numbered lower. For example, resource #5 can be numbered 1, resource #6 can be numbered 2, resource #3 can be numbered 3, resource #4 can be numbered 4, resource #1 can be numbered 5, and resource #2 can be numbered 6.

[0376] Method b

[0377] Resources with higher frequencies in the same time domain position are assigned smaller numbers, while resources with earlier times (earlier time domain positions) in the same frequency domain position are assigned smaller numbers. For example, resource #5 can be numbered 2, resource #6 can be numbered 1, resource #3 can be numbered 4, resource #4 can be numbered 3, resource #1 can be numbered 6, and resource #2 can be numbered 5.

[0378] Method c

[0379] Resources with higher frequencies in the same time domain position are assigned smaller numbers, while resources with earlier frequencies (earlier time domain positions) in the same frequency domain position are assigned larger numbers. For example, resource #5 can be numbered 6, resource #6 can be numbered 5, resource #3 can be numbered 4, resource #4 can be numbered 3, resource #1 can be numbered 2, and resource #2 can be numbered 1.

[0380] Method d

[0381] Resources with higher frequencies in the same time domain position are numbered higher, and resources with earlier times (earlier time domain positions) in the same frequency domain position are numbered higher. For example, resource #5 can be numbered 5, resource #6 can be numbered 6, resource #3 can be numbered 3, resource #4 can be numbered 4, resource #1 can be numbered 1, and resource #2 can be numbered 2.

[0382] It should be noted that the number of the above resources is only for illustration and is not limited in this application.

[0383] In a possible implementation, numbering is performed in the frequency domain first and then in the time domain. For details, reference may be made to the above-mentioned method of numbering in the time domain first and then in the frequency domain, which will not be described in detail here.

[0384] Furthermore, when a time-frequency region position (resource) is configured to be able to send multiple sequences, the mapping relationship between the PEI and the PO subgroup can also be determined in combination with the sequence domain of the PEI.

[0385] Specifically, the number corresponding to the position of the resource configured for each sequence is determined according to the time domain position and / or frequency domain position and / or sequence index configured by the PEI, and the mapping relationship with the PO subgroup is determined according to the number. Among them, the mapping relationship with the PO subgroup according to the number is determined according to the description of determining the mapping relationship with the PO subgroup according to the bit index of the PEI in the above-mentioned method 1, which will not be repeated here.

[0386] Among them, the number corresponding to each sequence is determined according to the time domain position and / or frequency domain position configured for each sequence. Please refer to the above methods a, b, c, and d, which will not be repeated here. At this time, multiple sequences in a resource are used to indicate a PO subgroup.

[0387] Wherein, determining the number corresponding to each sequence according to the sequence index of each sequence can refer to the above-mentioned method 2, which will not be repeated here.

[0388] The following is an example of how to determine the number corresponding to each sequence according to the time domain position, frequency domain position and sequence index of each sequence.

[0389] For example Figure 16 As shown, Figure 16 This is another resource configuration diagram provided by the present application. Each resource is configured to send two sequences, and the sequence indexes are sequence #1 and sequence #2 respectively.

[0390] For example, the sequences are numbered according to the order of the sequence domain, time domain, and frequency domain. In combination with the above-described method a, the sequences are numbered according to the different resource positions configured, as shown in Table 5. In other words, the number of sequence numbers configured for UE#1 is the product of the number of configured sequences and the number of configured resources (or the number of resource positions).

[0391] Table 5

[0392]

[0393]

[0394] Illustratively, the sequences are numbered according to the order of the sequence domain, the time domain, and the frequency domain, and any of the above methods b, c, and d may be combined. For details, please refer to the above description and will not be repeated here.

[0395] For example, the sequences are numbered according to the order of the time domain, the frequency domain, and the sequence domain, and any one of the above methods a, b, c, and d is combined. For details, please refer to the above description and will not be repeated here.

[0396] It should be noted that the sequences may also be numbered according to other orders such as frequency domain, time domain, sequence domain, etc., and combined with any of the above methods a, b, c, d. For details, please refer to the above description and will not be repeated here.

[0397] UE#1 determines whether the corresponding PO subgroup indicated by information #2 has paging according to mapping relationship #1. Mapping relationship #1 is any one of the methods in rule #1, and mapping relationship #1 can be pre-configured in UE#1.

[0398] Optionally, at S450 , network device #1 may send information #3, where information #3 is used to indicate which method in rule #1 is used to determine mapping relationship #1. UE #1 determines mapping relationship #1 according to information #3 and rule #1.

[0399] S460, UE#1 determines whether there is paging for the corresponding PO subgroup.

[0400] UE#1 determines the bit or sequence in PEI#0 corresponding to the corresponding PO subgroup according to mapping relationship #1, and determines whether there is paging for the PO subgroup according to the indication of the bit or sequence.

[0401] For example, if the PEI#0 bit is '0', it indicates that the corresponding PO subgroup does not have paging, and if the bit is '1', it indicates that the corresponding PO subgroup does have paging.

[0402] If the corresponding PO subgroup has paging, the paging PDCCH is monitored on the PO corresponding to the PO subgroup; if the corresponding PO subgroup does not have paging, the paging PDCCH is not monitored on the PO corresponding to the PO subgroup.

[0403] by Figure 12 Taking the configuration shown as an example, assuming that the PO to be detected by UE#1 is PO2 defined by PF#1, the PEI to be detected by PF#1 is PEI#0, where PEI#0 is sent in the form of DCI, has 10 bits, and the bit index is '0'-'9'. UE#1 maps PEI#0 to the PO subgroup according to the mapping method of method 1 in rule #1 based on the configuration or the agreement with network device #1. UE#1 determines the PO subgroup number based on the corresponding PO subgroup index. Assuming that the PO subgroup number corresponding to UE#1 is '2', then according to Table 1, the corresponding PEI#0 bit index is '2', and the bit with PEI#0 bit index '2' is '1', and UE#1 monitors PO2.

[0404] Using method 400, when the PEI indicates multiple POs (PO subgroups), by specifying that the PEI indicates the PO (or PO subgroup) defined by the PF, the UE is enabled to determine the mapping method between the PEI and its corresponding PO (or PO subgroup) according to one of the above-mentioned mapping methods, thereby accurately determining whether the PO (or PO subgroup) to be detected carries paging data. On the other hand, when the PEI indicates multiple PO subgroups, since UEs that need to monitor POs can be grouped together, and UEs that do not need to monitor POs can be grouped together, the number of UEs that do not need to monitor POs can be minimized.

[0405] In the current solution of PEI indicating PO, there is a situation where the PO indicated by PEI occupies a long time in the time domain, for example Figure 13 In the figure, PEI#0 is used to indicate PO0, PO1, PO2, and PO3. These POs occupy multiple RFs. There is at least a 30ms delay between MO0 of PO0 and MO0 of PO3. PO3 is far away from PEI#0, which brings two problems: Problem 1: The UE needs to switch to sleep mode after monitoring PEI, and then switch back to normal working mode when PO arrives. When the number of POs defined by PF is large, the UE needs to switch states back and forth, which will increase the power consumed by the UE; Problem 2: When the time interval between PO#3 and the corresponding PEI#0 is large, if no paging arrives at the base station before PEI#0, PEI#0 will indicate that PO#3 has no paging. If a paging suddenly arrives at the base station between PEI#0 and PO#3, regardless of whether PO#3 carries paging data, the UE will usually not receive PO#3 according to the instruction of PEI#0. The UE can only wait until the PO in the next discontinuous reception (DRX) cycle to receive the paging. It can be seen that if the distance between the PEI and the PO is too large, a certain paging delay will be caused.

[0406] To address the above issues, this application also proposes a method for PEI to indicate multiple POs or multiple PO subgroups, such as Figure 17 The method 500 shown, Figure 17 This is another schematic flow chart provided in the embodiments of the present application.

[0407] S510, UE#1 determines the time window in which the PO to be received is located.

[0408] Specifically, UE#1 determines the PF to be received according to parameter #A, then determines the PO to be received according to the PF, and finally determines the time window of the PO according to the PO to be received.

[0409] For example, taking the 5G NR paging protocol in 3GPP as an example, parameter #A may be the following parameter of the signaling in the system message:

[0410] nAndPagingFrameOffset: used to indicate how many PFs there are in a DRX cycle and the frame offset of the PFs;

[0411] tdd-UL-DL-ConfigurationCommon: used to indicate the configuration mode of uplink and downlink time slots or frame structures. When the time slot is an uplink time slot, it cannot be used for PO MO;

[0412] firstPDCCH-MonitoringOccasionOfPO: used to indicate the number of the first MO corresponding to the UE in a PO.

[0413] The following combination Figure 18 For example, UE#1 determines the PO to be received based on parameter #A. Figure 18 This is a configuration diagram of PEI, PF and PO provided in this application. Figure 18 In the PEI time window, the length of the time window is one SSB period, and the start time of the time window is the start time of the first SS burst after the PEI. The density of PF is 1 / 4, that is, the fourth frame of every four RFs is a PF. Each PF is configured with four POs, and each PO contains four MOs.

[0414] Step a: UE#1 determines, based on the parameter nAndPagingFrameOffset in parameter #A, that the number of PFs to be received is 1, and the frame offset of the PF (PF#1) is 1;

[0415] Step b: UE#1 determines the time slot configuration mode of SSB cycle #1 corresponding to PF#1 based on the parameter tdd-UL-DL-ConfigurationCommon, and determines whether the MO configured in the search space set in PF#1 is occupied by the uplink time slot and whether it can be used for PO (the following takes the MO configured in the search space set in PF#1 as an example to show that it can be used for PO);

[0416] Step c: UE#1 determines the sending time of the first MO of the PO according to the parameter firstPDCCH-MonitoringOccasionOfPO.

[0417] S520, UE#1 obtains information #1.

[0418] Information #1 is used to indicate the time window. For details, please refer to the description in method S410 and will not be repeated here.

[0419] UE#1 determines which time window this MO / PO is in based on information #1 and the sending time of the first MO in step c of S510. The following describes the example of determining that the first MO of the PO is in time window #0.

[0420] S530, network device #1 sends information #2a, and UE #1 receives information #2a.

[0421] Information #2a is used to indicate whether there is paging for the PO (or PO subgroup) actually included in time window #0.

[0422] It should be noted that when a PO has no subgroup, the PO subgroup can be considered as the PO.

[0423] For example, information #2a may be PEI or PI, or other information having the above functions. In the embodiment of the present application, the following solution is introduced by taking information #2a being PEI as an example.

[0424] In a possible implementation, UE #1 determines information #2a to be received according to time window #0.

[0425] S540, UE#1 determines the number of PO subgroups (or POs) actually included in time window #0.

[0426] The PO subgroups (or POs) actually included in the time window #0 refer to the PO subgroups (or POs) that appear in the time period corresponding to the time window #0.

[0427] It should be noted that when a PO has only one PO subgroup, the number of POs is equal to the number of PO subgroups. Therefore, the method for UE#1 to determine the number of POs in a time window is applicable to the embodiment of the present application. The following description of the method is based on the example of determining the number of PO subgroups in time window #0. For other descriptions of POs and PO subgroups, please refer to method 400 and will not be repeated here.

[0428] The following example illustrates the PO subgroups actually included in time window #0. Figure 19 As shown, Figure 19 This is another configuration diagram of PEI, PF and PO provided in this application.

[0429] Figure 19In the PEI time window, the length of the time window is one SSB period, and the start time of the time window is the start time of the first SS burst after the PEI. The density of PF is 1 / 2, that is, the second frame of every two RFs is a PF. Each PF is configured with 4 POs, and each PO contains 4 MOs.

[0430] For example, PEI#0 corresponds to time window #0. The start time of time window #0 is aligned with the start time of SSB cycle #1 (the start time of SS burst #1), and the end time of time window #0 is aligned with the end time of SSB cycle #1. SSB cycle #1 includes RF#1 and PF#1. SSB cycle #1 is 20 ms, and the duration of RF#1 and PF#1 is 10 ms. In addition, the start time of RF#1 is aligned with the start time of SSB cycle #1, the end time of RF#1 is aligned with the start time of PF#1, and the end time of PF#1 is aligned with the end time of SSB cycle #1. Time window #0 includes PF#1 and RF#1. The POs that appear in the time period corresponding to time window #0 are PO2 and PO3 defined by PF#0, and PO0 and PO1 defined by PF#1. The PO subgroups actually included in the time window are the PO subgroups in PO2 defined by PF#0, the PO subgroups in PO3 defined by PF#0, the PO subgroups in PO0 defined by PF#1, and the PO subgroups in PO1 defined by PF#1.

[0431] Therefore, the POs actually included in the time window can be all or part of the POs defined in a PF, or,

[0432] The POs actually included in the time window can be all POs defined by multiple PFs, or,

[0433] The POs actually included in the time window can be part of the POs defined by multiple PFs. When the POs actually included in the time window include a PO subgroup, the PO subgroup is the PO subgroup actually included in the time window.

[0434] It should be noted that the actual number of POs contained in different time windows may be different, which means that the number of POs indicated by different PEIs may also be different.

[0435] For example, Figure 18In the example, PEI#0 corresponds to time window #0. The start time of time window #0 is aligned with the start time of SSB cycle #1 (the start time of SS burst #1), and the end time of time window #0 is aligned with the end time of SSB cycle #1. SSB cycle #1 includes RF#2 and PF#1. SSB cycle #1 is 20ms, and the duration of RF#2 and PF#1 is 10ms. Furthermore, the start time of RF#2 is aligned with the start time of SSB cycle #1, the end time of RF#2 is aligned with the start time of PF#1, and the end time of PF#1 is aligned with the end time of SSB cycle #1. Therefore, time window #0 includes RF#2 and PF#1. Because network device #1 uses special configuration for PF#1 (such as avoiding uplink transmission or regularly scheduling downlink data), its defined PO1, PO2, and PO3 all occur within SSB cycle #2 (time window #1). Therefore, time window #0 actually contains PO0 defined by PF#1, and time window #1 actually contains PO1, PO2, and PO3 defined by PF#1. Therefore, PEI#0 indicates 1 PO, and PEI#1 corresponding to time window #1 indicates 3 POs.

[0436] In a possible implementation, UE#1 determines the number of POs actually included in time window #0 according to parameter #A, and further determines the number of PO subgroups actually included according to the number of POs actually included.

[0437] The following combination Figure 18 For example, UE#1 determines the actual number of POs included in time window #0 according to parameter #A.

[0438] UE#1 determines the time slot configuration for SSB cycle #1 corresponding to time window #0 based on the parameter tdd-UL-DL-ConfigurationCommon. This allows it to determine whether the MO configured in the search space set in PF#1 is occupied by the uplink time slot and whether it can be used for PO. The MOs available for PO are grouped into groups of four in chronological order to form a PO, thereby determining the number of POs. If UEs are grouped in a PO, UE#1 can determine the number of PO subgroups in the PO based on the relevant configuration.

[0439] Exemplarily, the number of PO subgroups included in a PO may be agreed upon by UE#1 and network device #1, or may be indicated by network device #1, or may be configured in UE#1.

[0440] S550, UE#1 determines mapping relationship #1.

[0441] The content of mapping relationship #1 is described in S440 and will not be repeated here.

[0442] Specifically, UE#1 numbers the PO subgroups according to the number of PO subgroups (PO number), and determines which bit or sequence of PEI#0 indicates the PO subgroup corresponding to UE#1 according to a mapping method in rule #1, wherein the mapping method adopted can be agreed upon by UE#1 and network device #1, or indicated by network device #1, and this application does not limit this.

[0443] The method for numbering POs or PO subgroups is described in method 400 and will not be repeated here.

[0444] S560, UE#1 determines whether there is paging for the corresponding PO subgroup.

[0445] For details, please refer to S450 and will not be repeated here.

[0446] Using method 500, when a PEI indicates multiple POs (PO subgroups), by specifying that the PEI indicates the POs (or PO subgroups) actually included in its corresponding time window, the UE is enabled to determine the mapping method between the PEI and its corresponding PO (or PO subgroup) according to one of the above mapping methods, thereby accurately determining whether the PO (or PO subgroup) to be detected carries paging data. In addition, the time offset between different POs and PEIs is relatively uniform, avoiding the problem of different UEs achieving unequal power consumption gains due to large time intervals between PEIs and POs, while also reducing network paging delays.

[0447] Based on the scenario corresponding to method 500, there is also a situation where the same PO does not appear in the same time window, for example Figure 20 As shown, Figure 20 This is another configuration diagram of PEI, PF and PO provided in this application.

[0448] Figure 20 In the PEI time window, the length of the time window is one SSB period, and the start time of the time window is the start time of the first SS burst after the PEI. The density of PF is 1 / 4, that is, the fourth frame of every four RFs is a PF. Each PF is configured with four POs, and each PO contains four MOs.

[0449] For example, PEI#0 corresponds to time window #0. The start time of time window #0 is aligned with the start time of SSB cycle #1 (the start time of SS burst #1), and the end time of time window #0 is aligned with the end time of SSB cycle #1. SSB cycle #1 includes RF#2 and PF#1. SSB cycle #1 is 20ms, and the duration of RF#2 and PF#1 is 10ms. In addition, the start time of RF#2 is aligned with the start time of SSB cycle #1, the end time of RF#2 is aligned with the start time of PF#1, and the end time of PF#1 is aligned with the end time of SSB cycle #1. Therefore, time window #0 includes RF#2 and PF#1. Because network device #1 uses special configuration for PF#1 (such as avoiding uplink transmission or regular downlink data scheduling), its defined portions PO1 (PO1MO2, PO1MO3), PO2, and PO3 all occur within SSB cycle #2 (time window #1). Therefore, time window #0 actually includes PO0 defined by PF#1 and part PO1 (PO1MO0, PO1MO1) defined by PF#1, and time window #1 actually includes part PO1 (PO1MO2, PO1MO3), PO2, and PO3 defined by PF#1.

[0450] For this scenario, the present application also proposes a method 600 for PEI to indicate multiple POs or multiple PO subgroups. The schematic flow chart of the method 600 can be found in Figure 17 .

[0451] S610, UE#1 determines in which time window the PO to be received falls.

[0452] For details, please refer to method S510 and will not be repeated here.

[0453] S620, UE#1 obtains information #1.

[0454] Information #1 is used to indicate time window #0. For details, please refer to the description in method S410 and will not be repeated here.

[0455] S630, network device #1 sends information #2a, and UE #1 receives information #2a.

[0456] For details, please refer to method S530 and will not be repeated here.

[0457] In this embodiment of the application, the following scheme is introduced using information #2a being PEI as an example.

[0458] S640, UE#1 determines the number of PO subgroups actually included in time window #0.

[0459] The PO subgroups actually included in the time window can be interpreted in the following two ways:

[0460] Method 1

[0461] First, the POs actually included in the time window refer to the POs that appear within the time period corresponding to the time window.

[0462] In this case, different time windows may contain different MOs for the same PO.

[0463] For example, Figure 20 In the figure, time window #0 contains MO0 and MO1 of PO0 and PO1, and time window #1 contains MO2 and MO3 of PO1, PO2 and PO3. Therefore, the number of POs contained in time window #0 is 2 (PO0 and PO1), and the number of POs contained in time window #1 is 3 (PO1, PO2 and PO3).

[0464] In this manner, the PO subgroups actually included in the time window refer to the PO subgroups that appear within the time period corresponding to the time window.

[0465] Method 2

[0466] First, the POs actually included in the time window refer to the POs that appear within the time period corresponding to the time window, and the earliest appearing MO of the PO also appears within the time window.

[0467] For example, Figure 20 In the figure, time window #0 contains PO0 and PO1 (since MO0 of PO1 appears in time window #0, time window #0 contains PO1), and time window #1 contains PO2 and PO3 (although MO2 and MO3 of PO1 also appear in time window #1, MO2 is not the earliest MO that appears in PO1, so time window #1 does not contain PO1). Therefore, the number of POs contained in time window #0 is 2, and the number of POs contained in time window #1 is 2.

[0468] In this manner, the PO subgroups actually included in the time window refer to the PO subgroups that appear within the time period corresponding to the time window, and the earliest appearing MO of the PO subgroup also appears within the time window.

[0469] UE#1 determines the POs actually contained in time window #0 according to one of the two definition methods mentioned above, thereby determining the number of POs actually contained in time window #0, and further determines the number of PO subgroups actually contained in time window #0. For relevant content on determining the number of POs or the number of PO subgroups, please refer to method S540 and will not be repeated here.

[0470] S650, UE#1 determines mapping relationship #1.

[0471] For details, please refer to method S550 and will not be repeated here.

[0472] S660, UE#1 determines whether there is paging for its corresponding PO subgroup.

[0473] For details, please refer to S560 and will not be repeated here.

[0474] It should be noted that when the “POs actually included in the time window” are defined using the method 1 of S640, the same PO (PO subgroup) can be indicated by multiple PEIs, that is, one PO can be associated with multiple PEIs. Figure 20 In this example, PO2 (PO2 subgroup) can be indicated by both PEI#0 and PEI#1 to indicate whether paging is occurring. UE#1 can then determine whether paging is occurring for its corresponding PO subgroup based on PEI#0 and mapping relationship#1, or it can determine whether paging is occurring for its corresponding PO subgroup based on PEI#1 and mapping relationship#1.

[0475] When the “POs actually included in the time window” are defined using the second method of S620, a PO is indicated by only one PEI. Figure 20 In the example, although PO2 appears in both time window #0 and time window #1, only PEI #0 indicates whether paging is present, not PEI #1. UE #1 then determines whether paging is present for its corresponding PO subgroup based only on PEI #0 and mapping relationship #1.

[0476] The above is combined Figures 1 to 20 The technical solution provided by the communication method of the embodiment of the present application is described in detail. Figures 21 to 22 The communication device provided in the embodiment of the present application is introduced.

[0477] Figure 21 and Figure 22 Schematic diagram of the structure of possible communication devices provided by embodiments of the present application. These communication devices can implement the functions of the terminal device or network device in the above method embodiments, and thus can also achieve the beneficial effects of the above method embodiments. In the embodiments of the present application, the communication device can be the first communication device (first terminal device) in method 200 or method 300, or a module (such as a chip) applied to the first communication device.

[0478] like Figure 21 As shown, the communication device 700 includes a transceiver module 701 and a processing module 702. The communication device 700 can be used to implement the above Figure 9 The function of the first communication device in the method embodiment shown or the above Figure 10 The functions of the first communication device in the method embodiment are shown.

[0479] When the communication device 700 is used to implement Figure 9The functions of the first communication device in the method embodiment are: a transceiver module 701, used to receive first information, the first information is used to indicate whether the paging occasion PO subgroup configured by the first paging frame PF carries paging data, the first PF is located in the first time window, the first UE corresponds to the first PO subgroup, and the first PO subgroup belongs to one of the PO subgroups configured by the first PF; a processing module 702, the processing module 702 is used to determine whether the first information indicates that the first PO subgroup carries paging data based on the first PO subgroup and the first association relationship, wherein the first association relationship is used to indicate the correspondence between the first information and the PO subgroup configured by the first PF.

[0480] When the communication device 700 is used to implement Figure 10 The functions of the first communication device in the method embodiment are: a transceiver module 701 for receiving first information, wherein the first information is used to indicate whether the paging occasion PO subgroup included in the first time window carries paging data, the first UE corresponds to the first PO subgroup, and the first PO subgroup belongs to one of the PO subgroups included in the first time window; a processing module 702 for determining a first association relationship based on the number of PO subgroups included in the first time window, wherein the first association relationship is used to indicate the correspondence between the first information and the PO subgroup included in the first time window; the processing module 702 is also used to determine, based on the first PO subgroup and the first association relationship, whether the first information indicates that the first PO subgroup carries paging data.

[0481] For a more detailed description of the transceiver module 701 and the processing module 702 , please refer to the relevant description in the above method embodiment, which will not be described again here.

[0482] like Figure 22 As shown, communication device 800 includes a processor 810 and an interface circuit 820. Processor 810 and interface circuit 820 are coupled to each other. It will be appreciated that interface circuit 820 may be a transceiver or an input / output interface. Optionally, communication device 800 may further include a memory 830 for storing instructions executed by processor 810, input data required by processor 810 to execute instructions, or data generated after processor 810 executes instructions.

[0483] For example, the memory 830 and the processor 810 may be integrated together or may be independent devices.

[0484] When the communication device 800 is used to implement the method in the above method embodiment, the processor 810 is used to execute the functions of the above processing module 702 , and the interface circuit 820 is used to execute the functions of the above transceiver module 701 .

[0485] When the communication device is a chip used in a first communication device, the first communication device chip implements the functions of the first communication device in the above method embodiments. The first communication device chip receives information from other modules (such as a radio frequency module or antenna) in the first communication device; or the first communication device chip sends information to other modules (such as a radio frequency module or antenna) in the first communication device.

[0486] It is understood that the processor in the embodiments of the present application may be a central processing unit (CPU), or may be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0487] It should be noted that the various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for system or system embodiments, since they are basically similar to method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment. The system and system embodiments described above are merely schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Ordinary technicians in this field can understand and implement it without expending creative work.

[0488] It should also be noted that, in this document, relational terms such as first, second, "#1", "#2" and the like are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements that are inherent to such process, method, article or device. In the absence of further limitations, an element defined by the sentence "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device that includes the element.

[0489] The method steps in the embodiments of the present application can be implemented by hardware or by a processor executing software instructions. The software instructions can be composed of corresponding software modules, which can be stored in random access memory (RAM), flash memory, read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), registers, hard disks, mobile hard disks, CD-ROMs, or any other form of storage medium known in the art. An exemplary storage medium is coupled to a processor so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and storage medium can be located in an ASIC. In addition, the ASIC can be located in an access network device or a terminal device. Of course, the processor and storage medium can also exist as discrete components in an access network device or a terminal device.

[0490] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instruction is loaded and executed on a computer, the process or function described in the embodiment of the present application is executed in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program or instruction may be stored in a computer-readable storage medium or transmitted via the computer-readable storage medium. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server that integrates one or more available media. The available medium may be a magnetic medium, such as a floppy disk, a hard disk, or a tape; it may also be an optical medium, such as a DVD; it may also be a semiconductor medium, such as a solid state disk (SSD).

[0491] In this application, "at least one" means one or more, and "more" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. In the text description of this application, the character " / " generally indicates that the previous and next related objects are in an "or" relationship; in the formulas of this application, the character " / " indicates that the previous and next related objects are in a "division" relationship.

[0492] It is understood that the various numbers involved in the embodiments of the present application are only for the convenience of description and are not intended to limit the scope of the embodiments of the present application. The size of the sequence number of each process does not mean the order of execution. The order of execution of each process should be determined by its function and internal logic. It should be noted that not all steps in the embodiments of the present application must be executed. Some can be omitted and can also achieve similar effects.

Claims

1. A method for paging, characterized in that: include: receiving first information, where the first information is used to indicate whether a paging occasion PO subgroup configured by a first paging frame PF carries paging data, where the first PF is within a first time window, a first terminal device UE corresponds to a first PO subgroup, and the first PO subgroup belongs to one of the PO subgroups configured by the first PF; Determine whether the first PO subgroup carries paging data based on the first PO subgroup, the first association relationship and the first information, wherein the first association relationship is used to indicate the correspondence between the first information and the PO subgroup configured by the first PF.

2. The method according to claim 1, characterized in that Some of the PO subgroups in the PO subgroups of the first PF configuration are included in a second time window, and the second time window is different from the first time window.

3. The method according to claim 1, characterized in that The type of the first information is downlink control information DCI, and the first association relationship is used to indicate a correspondence between the first information and the PO subgroup configured by the first PF, including: The first association relationship is used to indicate the correspondence between the bit index of the first information and the number of the PO subgroup of the first PF configuration.

4. The method according to claim 3, characterized in that The number of bits of the first information is greater than or equal to the number of PO subgroups configured in the first PF, and the bits of the first information correspond one-to-one to the PO subgroups configured in the first PF; or The number of bits of the first information is smaller than the number of PO subgroups configured in the first PF, and each bit of the at least one bit of the first information corresponds to a plurality of PO subgroups in the PO subgroups configured in the first PF.

5. The method according to claim 1, wherein When the first information is sent in a sequence, the first association relationship is used to indicate the correspondence between the first information and the paging occasion PO subgroup configured in the first paging frame PF, including: The first association relationship is used to indicate the correspondence between the sequence index of the first information and the number of the PO subgroup of the first PF configuration.

6. The method according to claim 5, characterized in that The type of the first information is a secondary synchronization signal SSS, a tracking reference signal TRS, or a channel state information reference signal CSI-RS.

7. The method according to claim 5, characterized in that The number of configured sequences of the first information is greater than or equal to the number of PO subgroups configured in the first PF, and the sequences of the first information correspond one-to-one to the PO subgroups configured in the first PF; or, The number of configured sequences of the first information is smaller than the number of PO subgroups configured in the first PF, and each sequence of the at least one sequence of the first information corresponds to multiple PO subgroups in the PO subgroups configured in the first PF.

8. The method according to claim 1, characterized in that The type of the first information is a secondary synchronization signal SSS, a tracking reference signal TRS, or a channel state information reference signal CSI-RS, and the first association relationship is used to indicate a correspondence between the first information and a paging occasion PO subgroup configured in the first paging frame PF, including: The first association relationship is used to indicate the correspondence between the location of the configured resource of the first information and the number of the PO subgroup configured by the first PF.

9. The method according to claim 8, characterized in that The number of resource locations configured in the first information is greater than or equal to the number of PO subgroups configured in the first PF, and the resource locations configured in the first information correspond one-to-one to the PO subgroups configured in the first PF; or, The number of positions of the configured resources of the first information is less than the number of PO subgroups configured by the first PF, and each of the positions of at least one configured resource of the first information corresponds to multiple PO subgroups in the PO subgroups configured by the first PF.

10. The method according to claim 1, characterized in that The type of the first information is a secondary synchronization signal SSS, a tracking reference signal TRS, or a channel state information reference signal CSI-RS, and the first association relationship is used to indicate a correspondence between the first information and a paging occasion PO subgroup configured in the first paging frame PF, including: The first association relationship is used to indicate the correspondence between the sequence index of the first information, the location of the configured resource of the first information and the number of the PO subgroup configured by the first PF.

11. The method according to claim 10, characterized in that The product of the number of configured sequences of the first information and the number of locations of configured resources of the first information is greater than or equal to the number of PO subgroups configured in the first PF, and the sequences of the first information correspond one-to-one to the PO subgroups configured in the first PF; or, The product of the number of configured sequences of the first information and the number of locations of the configured resources of the first information is less than the number of PO subgroups configured by the first PF, and each sequence in at least one sequence of the first information corresponds to multiple PO subgroups in the PO subgroups configured by the first PF.

12. A method for paging, characterized in that: include: determining first information according to a first association relationship, where the first association relationship is used to indicate a correspondence between the first information and a paging occasion PO subgroup configured by a first paging frame PF, the first PF being located within a first time window, and the first information being used to indicate whether the PO subgroup configured by the first PF carries paging data; The first information is sent.

13. The method according to claim 12, characterized in that Some of the PO subgroups in the PO subgroups of the first PF configuration are included in a second time window, and the second time window is different from the first time window.

14. The method according to claim 12, characterized in that The type of the first information is downlink control information DCI, and the first association relationship is used to indicate a correspondence between the first information and the PO subgroup configured by the first PF, including: The first association relationship is used to indicate the correspondence between the bit index of the first information and the number of the PO subgroup of the first PF configuration.

15. The method according to claim 14, characterized in that The number of bits of the first information is greater than or equal to the number of PO subgroups configured in the first PF, and the bits of the first information correspond one-to-one to the PO subgroups configured in the first PF; or The number of bits of the first information is smaller than the number of PO subgroups configured in the first PF, and each bit of the at least one bit of the first information corresponds to a plurality of PO subgroups in the PO subgroups configured in the first PF.

16. The method according to claim 12, characterized in that When the first information is sent in a sequence, the first association relationship is used to indicate the correspondence between the first information and the paging occasion PO subgroup configured in the first paging frame PF, including: The first association relationship is used to indicate the correspondence between the sequence index of the first information and the number of the PO subgroup of the first PF configuration.

17. The method according to claim 16, characterized in that The type of the first information is a secondary synchronization signal SSS, a tracking reference signal TRS, or a channel state information reference signal CSI-RS.

18. The method according to claim 16, characterized in that The number of configured sequences of the first information is greater than or equal to the number of PO subgroups configured in the first PF, and the sequences of the first information correspond one-to-one to the PO subgroups configured in the first PF; or, The number of configured sequences of the first information is smaller than the number of PO subgroups configured in the first PF, and each sequence of the at least one sequence of the first information corresponds to multiple PO subgroups in the PO subgroups configured in the first PF.

19. The method according to claim 12, wherein: The type of the first information is a secondary synchronization signal SSS, a tracking reference signal TRS, or a channel state information reference signal CSI-RS, and the first association relationship is used to indicate a correspondence between the first information and a paging occasion PO subgroup configured in the first paging frame PF, including: The first association relationship is used to indicate the correspondence between the location of the configured resource of the first information and the number of the PO subgroup configured by the first PF.

20. The method according to claim 19, wherein The number of resource locations configured in the first information is greater than or equal to the number of PO subgroups configured in the first PF, and the resource locations configured in the first information correspond one-to-one to the PO subgroups configured in the first PF; or, The number of positions of the configured resources of the first information is less than the number of PO subgroups configured by the first PF, and each of the positions of at least one configured resource of the first information corresponds to multiple PO subgroups in the PO subgroups configured by the first PF.

21. The method according to claim 12, wherein The type of the first information is a secondary synchronization signal SSS, a tracking reference signal TRS, or a channel state information reference signal CSI-RS, and the first association relationship is used to indicate a correspondence between the first information and a paging occasion PO subgroup configured in the first paging frame PF, including: The first association relationship is used to indicate the correspondence between the sequence index of the first information, the location of the configured resource of the first information and the number of the PO subgroup configured by the first PF.

22. The method according to claim 21, characterized in that The product of the number of configured sequences of the first information and the number of locations of configured resources of the first information is greater than or equal to the number of PO subgroups configured in the first PF, and the sequences of the first information correspond one-to-one to the PO subgroups configured in the first PF; or, The product of the number of configured sequences of the first information and the number of locations of the configured resources of the first information is less than the number of PO subgroups configured by the first PF, and each sequence in at least one sequence of the first information corresponds to multiple PO subgroups in the PO subgroups configured by the first PF.

23. A method for paging, characterized in that: include: receiving first information, where the first information is used to indicate whether a paging occasion PO subgroup included in a first time window carries paging data, where the first terminal device UE corresponds to the first PO subgroup, and the first PO subgroup belongs to one of the PO subgroups included in the first time window; Determining a first association relationship according to the number of PO subgroups included in the first time window, where the first association relationship is used to indicate a correspondence between the first information and the PO subgroups included in the first time window; Determine whether the first PO subgroup carries paging data based on the first PO subgroup, the first association relationship and the first information.

24. The method according to claim 23, wherein The PO subgroups included in the first time window are PO subgroups with different PF configurations.

25. The method according to claim 23, characterized in that The type of the first information is downlink control information DCI, and the first association relationship is used to indicate the correspondence between the first information and the PO subgroup included in the first time window, including: The first association relationship is used to indicate the correspondence between the bit index of the first information and the number of the PO subgroup contained in the first time window.

26. The method according to claim 25, characterized in that The number of bits of the first information is greater than or equal to the number of PO subgroups included in the first time window, and the bits of the first information correspond one-to-one to the PO subgroups included in the first time window; or, The number of bits of the first information is smaller than the number of PO subgroups included in the first time window, and each bit of the at least one bit of the first information corresponds to multiple PO subgroups in the PO subgroups included in the first time window.

27. The method according to claim 23, characterized in that When the first information is sent in a sequence, the first association relationship for indicating the correspondence between the first information and the PO subgroups included in the first time window includes: The first association relationship is used to indicate the correspondence between the sequence index of the first information and the number of the PO subgroup contained in the first time window.

28. The method according to claim 27, characterized in that The type of the first information is a secondary synchronization signal SSS, a tracking reference signal TRS, or a channel state information reference signal CSI-RS.

29. The method according to claim 27, characterized in that The number of configured sequences of the first information is greater than or equal to the number of PO subgroups included in the first time window, and the sequences of the first information correspond one-to-one to the PO subgroups included in the first time window; or, The number of configured sequences of the first information is smaller than the number of PO subgroups included in the first time window, and each sequence in at least one sequence of the first information corresponds to multiple PO subgroups in the PO subgroups included in the first time window.

30. The method according to claim 23, wherein The type of the first information is a secondary synchronization signal SSS, a tracking reference signal TRS, or a channel state information reference signal CSI-RS, and the first association relationship is used to indicate a correspondence between the first information and the PO subgroup included in the first time window, including: The first association relationship is used to indicate the correspondence between the location of the configured resource of the first information and the number of the PO subgroup included in the first time window.

31. The method according to claim 30, wherein The number of resource locations configured in the first information is greater than or equal to the number of PO subgroups included in the first time window, and the resource locations configured in the first information correspond one-to-one to the PO subgroups included in the first time window; or, The number of positions of the configured resources of the first information is smaller than the number of PO subgroups contained in the first time window, and each of the positions of at least one configured resource of the first information corresponds to multiple PO subgroups in the PO subgroups contained in the first time window.

32. A method for paging, characterized in that: include: Determining a first association relationship according to the number of paging occasion PO subgroups included in the first time window, where the first association relationship is used to indicate a correspondence between the first information and the PO subgroups included in the first time window; Determining the first information according to the first association relationship, where the first information is used to indicate whether the PO subgroup included in the first time window carries paging data; The first information is sent.

33. The method according to claim 32, characterized in that The PO subgroups included in the first time window are PO subgroups with different PF configurations.

34. The method according to claim 32, wherein The type of the first information is downlink control information DCI, and the first association relationship is used to indicate the correspondence between the first information and the PO subgroup included in the first time window, including: The first association relationship is used to indicate the correspondence between the bit index of the first information and the number of the PO subgroup contained in the first time window.

35. The method according to claim 34, wherein The number of bits of the first information is greater than or equal to the number of PO subgroups included in the first time window, and the bits of the first information correspond one-to-one to the PO subgroups included in the first time window; or, The number of bits of the first information is smaller than the number of PO subgroups included in the first time window, and each bit of the at least one bit of the first information corresponds to multiple PO subgroups in the PO subgroups included in the first time window.

36. The method according to claim 32, wherein When the first information is sent in a sequence, the first association relationship for indicating the correspondence between the first information and the PO subgroups included in the first time window includes: The first association relationship is used to indicate the correspondence between the sequence index of the first information and the number of the PO subgroup contained in the first time window.

37. The method according to claim 36, wherein The type of the first information is a secondary synchronization signal SSS, a tracking reference signal TRS, or a channel state information reference signal CSI-RS.

38. The method according to claim 36, characterized in that The number of configured sequences of the first information is greater than or equal to the number of PO subgroups included in the first time window, and the sequences of the first information correspond one-to-one to the PO subgroups included in the first time window; or, The number of configured sequences of the first information is smaller than the number of PO subgroups included in the first time window, and each sequence in at least one sequence of the first information corresponds to multiple PO subgroups in the PO subgroups included in the first time window.

39. The method according to claim 32, wherein The type of the first information is a secondary synchronization signal SSS, a tracking reference signal TRS, or a channel state information reference signal CSI-RS, and the first association relationship is used to indicate a correspondence between the first information and the PO subgroup included in the first time window, including: The first association relationship is used to indicate the correspondence between the location of the configured resource of the first information and the number of the PO subgroup included in the first time window.

40. The method according to claim 39, wherein The number of resource locations configured in the first information is greater than or equal to the number of PO subgroups included in the first time window, and the resource locations configured in the first information correspond one-to-one to the PO subgroups included in the first time window; or, The number of positions of the configured resources of the first information is smaller than the number of PO subgroups contained in the first time window, and each of the positions of at least one configured resource of the first information corresponds to multiple PO subgroups in the PO subgroups contained in the first time window.

41. A communication device, characterized in that The communication device comprises a module for executing the method according to any one of claims 1 to 11, or comprises a module for executing the method according to any one of claims 23 to 31.

42. The device according to claim 41, characterized in that The device is the first UE or a chip in the first UE.

43. A communication device, characterized in that The communication device comprises means for performing the method according to any one of claims 12 to 22, or comprises means for performing the method according to any one of claims 32 to 40.

44. The device according to claim 43, characterized in that The device is a network device or a chip in a network device.

45. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, which, when executed, causes the communication device to execute the method according to any one of claims 1 to 11, or the method according to any one of claims 12 to 22, or the method according to any one of claims 23 to 31, or the method according to any one of claims 32 to 40.

46. ​​A computer program product, characterized in that The computer program product comprises a computer program, which, when executed by a computer, causes the computer to perform the method according to any one of claims 1 to 11, or the method according to any one of claims 12 to 22, or the method according to any one of claims 23 to 31, or the method according to any one of claims 32 to 40.

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