Communication method, device and system

Abstract

The present application relates to the technical field of communications. Disclosed are a communication method, a device and a system, which can achieve network energy savings in network access scenarios and save power consumption during the processes of UEs receiving SSBs or SIB1s. The method comprises: a network device may indicate to a UE whether one of an SSB or an SIB1 is sent by the network device on the basis of a request of the UE, that is, whether one of the SSB or the SIB1 is an on-demand signal, or the network device may indicate to the UE whether there is an SIB1 following the SSB; and, if it is indicated that the SSB or the SIB1 is an on-demand signal or there is not an SIB1 following the SSB, the network device does not need to periodically broadcast one of the SSB or the SIB1, thus reducing the power consumption of the network device, and achieving network energy savings (NES). Moreover, reducing the energy consumption of the UE aids the UE in quickly accessing the network device.

Description

Communication method, device and system

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on February 8, 2024, with application number 202410178132.7 and application name “A Communication Method, Device and System”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to a communication method, device and system. Background Art

[0003] Currently, before a user equipment (UE) accesses a cell, it must first receive a synchronization signal, a synchronization signal / physical broadcast channel block (SSB), and a system information block 1 (SIB1). As shown in Figure 1A, a network device 02 (such as a base station) periodically transmits synchronization signals, a synchronization signal / physical broadcast channel block (SSB), and a system information block 1 (SIB1) on multiple beams. This allows user equipment (UE) 01 within the signal coverage area of ​​the network device 02 (such as a cell covered by the signal of the network device 02) to synchronize with the network device in the time domain and access the network device based on the received SSB and SIB1.

[0004] Typically, network devices periodically broadcast SSBs and SIB1s on multiple beams, causing them to continuously broadcast high-power signals, resulting in prolonged high energy consumption. Accordingly, UEs periodically receive SSBs and SIB1s and parse SIB1s, resulting in significant resource consumption during the SIB1 parsing process before the UE accesses a cell. Summary of the Invention

[0005] The embodiments of the present application provide a communication method, device, and system, which can achieve network energy saving in a network access scenario and save power consumption in the process of UE receiving SSB or SIB1.

[0006] In a first aspect, an embodiment of the present application provides a communication method applied to a user equipment UE, the method comprising: receiving a synchronization signal and a physical broadcast channel block SSB sent by a network device, the SSB including first identification information; based on the first identification information, determining whether the system information block SIB1 is a signal periodically sent by the network device (recorded as an always on signal) or a signal sent by the network device based on a request from the UE (recorded as an on-demand signal).

[0007] If the network device indicates that SIB1 is an on-demand signal, the network device can send SIB1 after receiving a request from the UE, rather than proactively sending SIB1. This eliminates the need for the network device to periodically broadcast SIB1, reducing its power consumption and achieving network energy savings (NES). Furthermore, when the network device indicates to the UE that SIB1 is an on-demand signal, the UE will only receive SIB1 if it initiates a request to the network device. This reduces the resource consumption caused by the UE receiving the signal and the resource consumption caused by the SIB1 parsing process, facilitating the UE's rapid access to the network device.

[0008] In a possible implementation of the first aspect, the method further includes: corresponding to SIB1 being a signal periodically transmitted by the network device, receiving SIB1 periodically transmitted by the network device; corresponding to SIB1 being a signal transmitted by the network device based on a request from the UE, transmitting a wake-up signal to the network device, and receiving SIB1 transmitted by the network device based on the wake-up signal. For example, the network device broadcasts SIB1 based on the request for the wake-up information.

[0009] In a possible implementation of the first aspect, the first identification information is the first bit in a master information block (MIB) in an SSB; the first bit has a first parameter value, and SIB1 is a signal sent by the network device based on a request from the UE; the first bit has a second parameter value, and SIB1 is a signal periodically sent by the network device. For example, the first parameter value is 1, and the second parameter value is 0.

[0010] In a possible implementation of the first aspect above, the first bit is an idle spare bit. It can be understood that spare is an existing bit in the MIB. In practical applications, the present application can utilize the existing spare bit, for example, define a new name for it, onDemandRmsi, and set it as the first bit in the MIB to indicate whether there is SIB1 after the SSB. Then, the bit onDemandRmsi in the MIB takes the value of the first parameter value (such as 1), indicating that SIB1 is an on-demand signal.

[0011] In a possible implementation of the first aspect above, the first identification information is carried in the resource element RE where the physical broadcast channel PBCH in the SSB is located; wherein the RE where the PBCH is located is zero power, and SIB1 is a signal sent by the network device based on the request of the UE; the RE where the PBCH is located is not zero power, and SIB1 is a signal sent periodically by the network device. It can be understood that the zero power indication of RE usually indicates that these REs are not used to transmit valid data signals. In this way, the present application implements network energy saving by indicating whether SIB1 is an on-demand signal through the power of the RE of the PBCH of the MIB in the SSB, and enables the UE to quickly access the network.

[0012] In the second aspect, an embodiment of the present application provides a communication method applied to a user equipment UE, the method comprising: receiving a synchronization signal and a physical broadcast channel block SSB sent by a network device, first configuration information in a master information block MIB of the SSB, the first configuration information being associated with a first table or target parameter; and determining, based on the first table or target parameter, whether the system information block SIB1 is a signal periodically sent by the network device or a signal sent by the network device based on a request from the UE. In this way, the present application can indicate whether SIB1 is a signal sent by the network device based on a request from the UE through a table associated with the configuration information of the MIB in the SSB, thereby reducing the resources consumed by the network device in broadcasting SSB and SIB1, and avoiding the situation where the UE continuously receives SSB and SIB1, causing delays in accessing the network.

[0013] In a possible implementation of the second aspect above, corresponding to SIB1 being a signal periodically sent by the network device, the SIB1 periodically sent by the network device is received; corresponding to SIB1 being a signal sent by the network device based on the request of the UE, a wake-up signal is sent to the network device, and the SIB1 sent by the network device based on the wake-up signal is received.

[0014] In a possible implementation of the second aspect above, the first configuration information is SIB1 configuration information pdcch-ConfigSIB1, and the SIB1 configuration information is used to configure the Type0-PDCCH common search space CSS for parsing SIB1, and is also used to configure the control resource set CORESET of the Type0-PDCCH CSS; the first table is a table corresponding to the Type0-PDCCH CSS, and the upper 4 bits of the SIB1 configuration information correspond to the index of the data row in the first table; or, the first table is a table corresponding to the CORESET, such as the tables in Tables 13-11 to 13-15 defined in TS38.213, and the lower 4 bits of the SIB1 configuration information correspond to the index of the data row in the first table.

[0015] In a possible implementation of the second aspect, the first table corresponds to a UE that supports network energy saving (NES), and SIB1 is a signal sent by the network device based on a request from the UE; alternatively, the first table corresponds to a UE that does not support network energy saving (NES), and SIB1 is a signal periodically sent by the network device. For example, the first table may be a table newly added to a standard (such as release 19). When the first table corresponds to a Type 0-PDCCH CSS, the table may differ from Tables 13-1 to 13-10 defined in TS 38.213.

[0016] In a possible implementation of the second aspect above, the first table includes a first table item; and the value of the first table item in the data row indexed based on the SIB1 configuration information in the first table is a third parameter value, and SIB1 is a signal sent by the network device based on the request of the UE; or the value of the first table item in the data row indexed based on the SIB1 configuration information in the first table is a fourth parameter value, and SIB1 is a signal periodically sent by the network device. In this case, the present application can define a new column of data in the table defined by the standard, and use the new list to indicate whether SIB1 is a signal sent by the network device based on the request of the UE. The first table item is a table item in a column of data.

[0017] In a possible implementation of the second aspect above, the data row indexed based on the SIB1 configuration information in the first table is a reserved row, and SIB1 is a signal sent by the network device based on the request of the UE; or, the data row indexed based on the SIB1 configuration information in the first table is not a reserved row, and SIB1 is a signal periodically sent by the network device.

[0018] In a possible implementation of the second aspect above, the first configuration information is the subcarrier offset (ssb-SubcarrierOffset) in the MIB of the SSB, and the subcarrier offset is used to calculate the k_SSB parameter, and the target parameter is the k_SSB parameter; the k_SSB parameter takes the fifth parameter value, and SIB1 is a signal sent by the network device based on the request of the UE; or, the k_SSB parameter takes the sixth parameter value, and SIB1 is a signal periodically sent by the network device. For example, when the first table is Table 13-8 defined in TS38.213, if the index determined by the SIB1 configuration information is 7 to 15, then the data line indexed based on the SIB1 configuration information in the first table is a reserved row, then the SIB1 after the current SSB is an on-demand signal.

[0019] In a third aspect, an embodiment of the present application provides a communication method, applied to a user equipment (UE), comprising: receiving a first signal via a primary cell (PCell) where the UE's primary carrier is located; and determining, based on the first signal, whether a synchronization signal and physical broadcast channel block (SSB) and / or system information (SIB1) transmitted on at least one secondary cell (SCell) where the UE's secondary carrier is located are signals periodically transmitted by a network device or signals transmitted by the network device based on a request from the UE. In this way, the present application can indicate, via signaling on the primary cell where the primary carrier is located, whether the SSB and SIB1 of the secondary cell where the UE's secondary carrier is located are signals transmitted by the network device based on a request from the UE, specifically indicating whether the SSB and / or SIB1 in each SCell in at least one SCell are on-demand signals. This allows the network device to reduce the resources occupied by transmitting SSBs and SIB1s on the secondary cell, thereby facilitating network energy conservation. Furthermore, the resource cells required by the UE to receive and parse SSBs and SIB1s on the secondary cell are reduced, thereby facilitating rapid network access.

[0020] In a possible implementation of the third aspect, corresponding to an SSB being a signal sent by the network device based on a request from a UE, a first wake-up signal is sent to the network device on at least one SCell, and the SSB sent by the network device on the at least one SCell based on the first wake-up signal is received; corresponding to an SIB1 being a signal sent by the network device based on a request from the UE, a second wake-up signal is sent to the network device on at least one SCell, and the SIB1 sent by the network device on the at least one SCell based on the second wake-up signal is received; corresponding to both the SSB and SIB1 being signals sent by the network device based on a request from the UE, a third wake-up signal is sent to the network device on at least one SCell, and the SSB and SIB1 sent by the network device on the at least one SCell based on the third wake-up signal are received. In this case, the network device may broadcast at least one of the SSB and SIB1 on each SCell.

[0021] In a possible implementation of the third aspect, the first signal is a system message SIB1 or other system message SIB broadcasted via the PCell.

[0022] In a possible implementation of the third aspect above, the first signal includes first domain information; the value of the first domain information is the seventh parameter value (such as true), and SIB1 is a signal sent by the network device based on the request of the UE; or, the value of the first domain information is the eighth parameter value (such as false), and SIB1 is a signal periodically sent by the network device. Exemplarily, the present application may add a domain on-demandSib1 ENUMERATED{true} to the SIB1 or other SIB messages broadcast by the main carrier of the UE, and the information in this domain may be the first domain information. Among them, the first signal corresponds to a domain on-demandSib1 ENUMERATED{true} and a cell identifier (such as ID or Index) for each SCell.

[0023] In a possible implementation of the third aspect above, the first signal includes the second domain information, and SIB1 is a signal sent by the network device based on the request of the UE; or, the first signal does not include the second domain information, and SIB1 is a signal periodically sent by the network device.

[0024] In a possible implementation of the third aspect, the first signal is dedicated signaling sent by the PCell of the UE in a connected state.

[0025] In a possible implementation of the third aspect above, the dedicated signaling is radio resource control RRC signaling, such as RRC reconfiguration signaling.

[0026] In a possible implementation of the third aspect above, the RRC signaling includes a first information element IE; the value of the first IE is the ninth parameter value (such as true), and SIB1 is a signal sent by the network device based on the request of the UE; or, the value of the first IE is the tenth parameter value (such as false), and SIB1 is a signal periodically sent by the network device.

[0027] In a possible implementation of the third aspect above, the RRC signaling includes a second information element IE, and SIB1 is a signal sent by the network device based on the request of the UE; or, the RRC signaling does not include the second IE, and SIB1 is a signal periodically sent by the network device.

[0028] In a fourth aspect, an embodiment of the present application provides a communication method, which is applied to a user equipment (UE), and the method includes: receiving a second reference signal sent by a network device, the second reference signal being used for synchronization with the network device; corresponding to the second reference signal being a discovery reference signal (DRS) signal or a low-power synchronization signal (LP-SS), determining that the sent synchronization signal and physical broadcast channel block (SSB) and / or system message (SIB1) are signals sent by the network device based on a request from the UE. In this way, the present application can indicate whether the SSB and / or SIB1 sent by the network device is an on-demand signal through DRS or LP-SS, thereby reducing the resources consumed by the network device in broadcasting SSB and SIB1, and avoiding the situation where the UE continuously receives SSB and SIB1, resulting in access network delays.

[0029] In a possible implementation of the fourth aspect above, the method further includes: corresponding to SSB being a signal sent by the network device based on the request of the UE, sending a first wake-up signal to the network device, and receiving the SSB sent by the network device based on the first wake-up signal; corresponding to SIB1 being a signal sent by the network device based on the request of the UE, sending a second wake-up signal to the network device, and receiving SIB1 sent by the network device based on the second wake-up signal; corresponding to SSB and SIB1 being signals sent by the network device based on the request of the UE, sending a third wake-up signal to the network device, and receiving SSB and SIB1 sent by the network device based on the third wake-up signal.

[0030] In a possible implementation of the fourth aspect above, the DRS includes a primary synchronization signal PSS and a secondary synchronization signal SSS.

[0031] In a fifth aspect, an embodiment of the present application provides a communication method applied to a user equipment UE, the method comprising: receiving a synchronization signal and a physical broadcast channel block SSB sent by a network device, the SSB including first identification information; based on the first identification information, determining whether the UE needs to receive a system information block SIB1 after receiving the SSB. In this way, the present application indicates whether there is SIB1 after the SSB by the first bit in the SSB, thereby avoiding the network device from periodically sending SIB1 and achieving network energy saving. In addition, after the UE obtains the SSB and determines that there is no SIB1 after the SSB, it can avoid periodically receiving SIB1 on each beam, thereby facilitating rapid access to the network.

[0032] In a possible implementation of the fifth aspect, the method further includes: corresponding to the need for the UE to receive SIB1 after receiving SSB, receiving SIB1 sent by the network device; corresponding to the need for the UE to receive SIB1 after receiving SSB, not receiving or not parsing SIB1.

[0033] In a possible implementation of the fifth aspect above, the first identification information is the first bit in the master information block MIB in the SSB; wherein, the first bit is set to a first parameter value, and the UE does not need to receive the system information block SIB1 after receiving the SSB; the first bit is set to a second parameter value, and the UE needs to receive the system information block SIB1 after receiving the SSB. In this way, the present application indicates whether there is SIB1 after the SSB through the first bit in the SSB, thereby avoiding the network device from periodically sending SIB1 and achieving network energy saving. In addition, after the UE obtains the SSB and determines that there is no SIB1 after the SSB, it can avoid periodically receiving SIB1 on each beam, which is conducive to rapid access to the network.

[0034] In a possible implementation of the fifth aspect, the first bit is a spare bit.

[0035] In a possible implementation of the fifth aspect, the first identification information is carried in the resource element (RE) where the physical broadcast channel (PBCH) in the SSB is located; wherein the RE where the PBCH is located has zero power, and the UE does not need to receive the system information block (SIB1) after receiving the SSB; the RE where the PBCH is located does not have zero power, and the UE needs to receive SIB1 after receiving the SSB. In this way, the present application indicates whether SIB1 is present after the SSB through the power indication of the RE of the PBCH of the MIB in the SSB, thereby achieving network energy saving and enabling the UE to quickly access the network.

[0036] In a sixth aspect, an embodiment of the present application provides a communication method applied to a user equipment (UE), the method comprising: receiving a synchronization signal and a physical broadcast channel block (SSB) sent by a network device, associating first configuration information in a master information block (MIB) of the SSB with a first table or target parameter; and determining, based on the first table or target parameter, whether the UE needs to receive a system information block (SIB1) after receiving the SSB. In this way, the present application can indicate whether there is SIB1 after the SSB through the table or target parameter associated with the configuration information of the MIB in the SSB, thereby reducing the resources consumed by the network device in broadcasting the SSB and SIB1, and avoiding the situation where the UE continuously receives the SSB and SIB1, causing delays in accessing the network.

[0037] In a possible implementation of the sixth aspect, the method further includes: corresponding to the need for the UE to receive the system information block SIB1 after receiving the SSB, receiving the SIB1 sent by the network device; corresponding to the need for the UE to not receive SIB1 after receiving the SSB, not receiving or not parsing SIB1.

[0038] In a possible implementation of the sixth aspect, the first configuration information is SIB1 configuration information (pdcch-ConfigSIB1), and the SIB1 configuration information is used to configure the Type0-PDCCH common search space CSS for parsing SIB1, and is also used to configure the control resource set CORESET of the Type0-PDCCH CSS; the first table is a table corresponding to the Type0-PDCCH CSS, and the upper 4 bits of the SIB1 configuration information correspond to the index of the data row in the first table; or, the first table is a table corresponding to the CORESET, and the lower 4 bits of the SIB1 configuration information correspond to the index of the data row in the first table.

[0039] In a possible implementation of the sixth aspect, the first table corresponds to a UE that supports network energy saving NES, and the UE does not need to receive SIB1 after receiving SSB; or, the first table corresponds to a UE that does not support network energy saving NES, and the UE needs to receive SIB1 after receiving SSB.

[0040] In a possible implementation of the sixth aspect above, the first table contains a first table entry; and the value of the first table entry in the data row indexed based on the SIB1 configuration information in the first table is a third parameter value, and the UE does not need to receive the system information block SIB1 after receiving the SSB; or, the value of the first table entry in the data row indexed based on the SIB1 configuration information in the first table is a fourth parameter value, and the UE needs to receive the system information block SIB1 after receiving the SSB.

[0041] In a possible implementation of the sixth aspect above, the data rows indexed based on the SIB1 configuration information in the first table are reserved rows, and the UE does not need to receive the system information block SIB1 after receiving the SSB; or, the data rows indexed based on the SIB1 configuration information in the first table are not reserved rows, and the UE needs to receive SIB1 after receiving the SSB.

[0042] In a possible implementation of the above-mentioned sixth aspect, the first configuration information is the subcarrier offset (ssb-SubcarrierOffset) in the MIB of the SSB, and the subcarrier offset is used to calculate the k_SSB parameter, and the target parameter is the k_SSB parameter; the k_SSB parameter takes the fifth parameter value, and the UE does not need to receive SIB1 after receiving the SSB; or, the k_SSB parameter takes the sixth parameter value, and the UE needs to receive SIB1 after receiving the SSB.

[0043] In the seventh aspect, an embodiment of the present application provides a communication method applied to a network device, the method comprising: sending a synchronization signal and a physical broadcast channel block SSB, the SSB comprising first identification information, wherein the first identification information is used to indicate that the system information block SIB1 sent by the network device is a signal periodically sent by the network device or a signal sent by the network device based on a request from a UE.

[0044] In a possible implementation of the seventh aspect, the method further includes: corresponding to SIB1 being a signal periodically sent by the network device, periodically sending SIB1; corresponding to SIB1 being a signal sent by the network device based on a request of the UE, receiving a wake-up signal sent by the user equipment UE, and sending SIB1 to the UE based on the wake-up signal.

[0045] In a possible implementation of the seventh aspect above, the first identification information is the first bit in the master information block MIB in the SSB; wherein the value of the first bit is the first parameter value, and SIB1 is a signal sent by the network device based on the request of the UE; the value of the first bit is the second parameter value, and SIB1 is a signal periodically sent by the network device.

[0046] In a possible implementation of the seventh aspect, the first bit is a spare bit.

[0047] In a possible implementation of the seventh aspect above, the first identification information is carried in the resource element RE where the physical broadcast channel PBCH in the SSB is located; wherein the RE where the PBCH is located is zero power, and SIB1 is a signal sent by the network device based on the request of the UE; the RE where the PBCH is located is not zero power, and SIB1 is a signal periodically sent by the network device.

[0048] In an eighth aspect, an embodiment of the present application provides a communication method applied to a network device, the method comprising: sending a synchronization signal and a physical broadcast channel block SSB, first configuration information in the master information block MIB of the SSB, the first configuration information being associated with a first table or target parameter; wherein the first table and the target parameter are used to indicate that the system information block SIB1 sent by the network device is a signal periodically sent by the network device or a signal sent by the network device based on a request from a UE.

[0049] In a possible implementation of the eighth aspect, corresponding to SIB1 being a signal periodically sent by the network device, SIB1 is periodically sent; corresponding to SIB1 being a signal sent by the network device based on a request of the UE, a wake-up signal sent by the user equipment UE is received, and SIB1 is sent based on the wake-up signal.

[0050] In a possible implementation of the eighth aspect, the first configuration information is SIB1 configuration information (pdcch-ConfigSIB1), and the SIB1 configuration information is used to configure the Type0-PDCCH common search space CSS for parsing SIB1, and is also used to configure the control resource set CORESET of the Type0-PDCCH CSS; the first table is a table corresponding to the Type0-PDCCH CSS, and the upper 4 bits of the SIB1 configuration information correspond to the index of the data row in the first table; or, the first table is a table corresponding to the CORESET, and the lower 4 bits of the SIB1 configuration information correspond to the index of the data row in the first table.

[0051] In a possible implementation of the eighth aspect, the first table corresponds to a UE that supports network energy saving NES, and SIB1 is a signal sent by the network device based on the request of the UE; or, the first table corresponds to a UE that does not support network energy saving NES, and SIB1 is a signal periodically sent by the network device.

[0052] In a possible implementation of the eighth aspect above, the first table contains a first table item; and the value of the first table item in the data row indexed based on the SIB1 configuration information in the first table is a third parameter value, and SIB1 is a signal sent by the network device based on the request of the UE; or, the value of the first table item in the data row indexed based on the SIB1 configuration information in the first table is a fourth parameter value, and SIB1 is a signal periodically sent by the network device.

[0053] In a possible implementation of the eighth aspect above, the data rows indexed based on the SIB1 configuration information in the first table are reserved rows, and SIB1 is a signal sent by the network device based on the request of the UE; or, the data rows indexed based on the SIB1 configuration information in the first table are not reserved rows, and SIB1 is a signal periodically sent by the network device.

[0054] In a possible implementation of the above-mentioned eighth aspect, the first configuration information is the subcarrier offset (ssb-SubcarrierOffset) in the MIB of SSB, and the subcarrier offset is used to calculate the k_SSB parameter, and the target parameter is the k_SSB parameter; the k_SSB parameter takes the fifth parameter value, and SIB1 is a signal sent by the network device based on the request of the UE; or, the k_SSB parameter takes the sixth parameter value, and SIB1 is a signal periodically sent by the network device.

[0055] In a ninth aspect, an embodiment of the present application provides a communication method, applied to a network device, the method comprising: sending a first signal in a primary cell PCell where a primary carrier of a user equipment UE is located, wherein the first information is used to indicate that the synchronization signal and physical broadcast channel block SSB and / or system information SIB1 sent on at least one secondary cell SCell where a secondary carrier of the UE is located are signals periodically sent by the network device or signals sent by the network device based on a request from the UE.

[0056] In a possible implementation of the ninth aspect above, corresponding to SSB being a signal sent by the network device based on the request of the UE, a first wake-up signal sent by the UE is received on at least one SCell, and SSB is sent on at least one SCell based on the first wake-up signal; corresponding to SIB1 being a signal sent by the network device based on the request of the UE, a second wake-up signal sent by the UE is received on at least one SCell, and SIB1 is sent on at least one SCell based on the second wake-up signal; corresponding to SSB and SIB1 being signals sent by the network device based on the request of the UE, a third wake-up signal sent by the UE is received on at least one SCell, and SSB and SIB1 are sent on at least one SCell based on the third wake-up signal.

[0057] In a possible implementation of the ninth aspect, the first signal is a system message SIB1 or other system message SIB broadcasted via the PCell.

[0058] In a possible implementation of the above-mentioned ninth aspect, the first signal includes first domain information; the value of the first domain information is the seventh parameter value, and SIB1 is a signal sent by the network device based on the request of the UE; or, the value of the first domain information is the eighth parameter value, and SIB1 is a signal periodically sent by the network device.

[0059] In a possible implementation of the ninth aspect, the SIB includes second domain information, and SIB1 is a signal sent by the network device based on the request of the UE; or, the SIB does not include second domain information, and SIB1 is a signal periodically sent by the network device.

[0060] In a possible implementation of the ninth aspect, the first signal is dedicated signaling sent by the PCell of the UE in a connected state.

[0061] In a possible implementation of the ninth aspect above, the dedicated signaling is radio resource control RRC signaling.

[0062] In a possible implementation of the above-mentioned ninth aspect, the RRC signaling includes a first information element IE; the value of the first IE is the ninth parameter value, and SIB1 is a signal sent by the network device based on the request of the UE; or, the value of the first IE is the tenth parameter value, and SIB1 is a signal periodically sent by the network device.

[0063] In a possible implementation of the ninth aspect, the RRC signaling includes a second information element IE, and SIB1 is a signal sent by the network device based on the request of the UE; or, the RRC signaling does not include a second IE, and SIB1 is a signal periodically sent by the network device.

[0064] In the tenth aspect, an embodiment of the present application provides a communication method, applied to a network device, the method comprising: sending a second reference signal, the second reference signal being used for synchronization between the user device and the network device; wherein, corresponding to the second reference signal being a discovery reference signal DRS signal or a low power synchronization signal LP-SS, the synchronization signal and physical broadcast channel block SSB and / or system message SIB1 sent by the network device are signals sent by the network device based on a request from the UE.

[0065] In a possible implementation of the above-mentioned tenth aspect, the above-mentioned method also includes: corresponding to SSB being a signal sent by the network device based on the request of the UE, receiving a first wake-up signal sent by the UE, and sending SSB based on the first wake-up signal; corresponding to SIB1 being a signal sent by the network device based on the request of the UE, sending a second wake-up signal to the network device, and receiving SIB1 sent by the network device based on the second wake-up signal; corresponding to SSB and SIB1 being signals sent by the network device based on the request of the UE, sending a third wake-up signal to the network device, and receiving SSB and SIB1 sent by the network device based on the third wake-up signal.

[0066] In a possible implementation of the tenth aspect, the DRS includes a primary synchronization signal PSS and a secondary synchronization signal SSS.

[0067] In the eleventh aspect, an embodiment of the present application provides a communication method applied to a network device, the method comprising: sending a synchronization signal and a physical broadcast channel block SSB, the SSB comprising first identification information; wherein the first identification information is used to indicate whether the network device sends a system information block SIB1 after sending the SSB.

[0068] In a possible implementation of the above-mentioned eleventh aspect, the above-mentioned method also includes: corresponding to the first identification information indicating that the network device sends SIB1 after sending SSB, sending SIB1; corresponding to the first identification information indicating that the network device does not send SIB1 after sending SSB, not sending SIB1.

[0069] In a possible implementation of the above-mentioned eleventh aspect, the first identification information is the first bit in the master information block MIB in the SSB; wherein the value of the first bit is the first parameter value, and the first identification information indicates that the network device does not send SIB1 after sending the SSB; the value of the first bit is the second parameter value, and the first identification information indicates that the network device sends SIB1 after sending the SSB.

[0070] In a possible implementation of the above eleventh aspect, the first bit is a spare bit.

[0071] In a possible implementation of the above-mentioned eleventh aspect, the first identification information is carried on the resource element RE where the physical broadcast channel PBCH in the SSB is located; wherein, the RE where the PBCH is located is zero power, and the first identification information indicates that the network device does not send SIB1 after sending the SSB; the RE where the PBCH is located is not zero power, and the first identification information indicates that the network device sends SIB1 after sending the SSB.

[0072] In the twelfth aspect, an embodiment of the present application provides a communication method applied to a network device, the method including: sending a synchronization signal and a physical broadcast channel block SSB, and associating the first configuration information in the master information block MIB of the SSB with a first table or target parameter; wherein the first table and the target parameter are used to indicate whether the network device sends a system information block SIB1 after sending the SSB.

[0073] In a possible implementation of the above-mentioned twelfth aspect, the above-mentioned method also includes: corresponding to the first identification information indicating that the network device sends SIB1 after sending SSB, sending SIB1; corresponding to the first identification information indicating that the network device does not send SIB1 after sending SSB, not sending SIB1.

[0074] In a possible implementation of the above-mentioned twelfth aspect, the first configuration information is SIB1 configuration information (pdcch-ConfigSIB1), and the SIB1 configuration information is used to configure the Type0-PDCCH common search space CSS for parsing SIB1, and is also used to configure the control resource set CORESET of Type0-PDCCH CSS; the first table is a table corresponding to Type0-PDCCH CSS, and the upper 4 bits of the SIB1 configuration information correspond to the index of the data row in the first table; or, the first table is a table corresponding to CORESET, and the lower 4 bits of the SIB1 configuration information correspond to the index of the data row in the first table.

[0075] In a possible implementation of the above-mentioned twelfth aspect, the first table corresponds to a UE that supports network energy saving NES, and the first identification information indicates that the network device does not send SIB1 after sending SSB, or the first table corresponds to a UE that does not support network energy saving NES, and the first identification information indicates that the network device sends SIB1 after sending SSB.

[0076] In a possible implementation of the above-mentioned twelfth aspect, the first table contains a first table item; and the value of the first table item in the data row indexed based on the SIB1 configuration information in the first table is a third parameter value, and the first identification information indicates that the network device does not send SIB1 after sending SSB; or, the value of the first table item in the data row indexed based on the SIB1 configuration information in the first table is a fourth parameter value, and the first identification information indicates that the network device sends SIB1 after sending SSB.

[0077] In a possible implementation of the above-mentioned twelfth aspect, the data row indexed based on the SIB1 configuration information in the first table is a reserved row, and the first identification information indicates that the network device does not send SIB1 after sending SSB; or, the data row indexed based on the SIB1 configuration information in the first table is not a reserved row, and the first identification information indicates that the network device sends SIB1 after sending SSB.

[0078] In a possible implementation of the above-mentioned twelfth aspect, the first configuration information is the subcarrier offset (ssb-SubcarrierOffset) in the MIB of SSB, and the subcarrier offset is used to calculate the k_SSB parameter, and the target parameter is the k_SSB parameter; the k_SSB parameter takes the fifth parameter value, and the first identification information indicates that the network device does not send SIB1 after sending SSB; or, the k_SSB parameter takes the sixth parameter value, and the first identification information indicates that the network device does not send SIB1 after sending SSB.

[0079] In the thirteenth aspect, an embodiment of the present application provides a user equipment UE, comprising: a transceiver for performing the receiving operations and sending operations in the methods of the above-mentioned first to sixth aspects and any possible implementations thereof; and a processor for performing other operations except the receiving operations and sending operations in the methods of the above-mentioned first to sixth aspects and any possible implementations thereof.

[0080] In the fourteenth aspect, an embodiment of the present application provides a network device, including: a transceiver for performing the receiving operations and sending operations in the methods in the above-mentioned aspects from the seventh aspect to the twelfth aspect and any possible implementation thereof; a processor for performing other operations except the receiving operations and sending operations in the methods in the above-mentioned aspects from the seventh aspect to the twelfth aspect and any possible implementation thereof.

[0081] In the fifteenth aspect, an embodiment of the present application provides a communication system, including a user equipment UE and a network element, the UE is used to execute the methods in the above-mentioned first to sixth aspects and any possible implementations thereof, and the network element is used to execute the methods in the above-mentioned seventh to twelfth aspects and any possible implementations thereof.

[0082] In the sixteenth aspect, an embodiment of the present application provides a computer storage medium for storing a computer program. When the computer program is executed, it is used to implement the communication method in the above-mentioned first to twelfth aspects and any possible implementation thereof.

[0083] Among them, the beneficial effects of the seventh to sixteenth aspects mentioned above can refer to the beneficial effects of the first to sixth aspects mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0084] FIG1A is a schematic diagram of the architecture of a communication system provided in an embodiment of the present application;

[0085] FIG1B is a schematic diagram of the content of an SSB provided in an embodiment of the present application;

[0086] FIG1C is a schematic diagram of mapping of PSS, SSS, PBCH, and DM-RS associated with PBCH in time-frequency resources in an SSB according to an embodiment of the present application;

[0087] FIG1D is a timing diagram of SSB and SIB1 in a signal broadcast cycle provided by an embodiment of the present application;

[0088] FIG2A is a schematic diagram of a communication system provided in an embodiment of the present application;

[0089] FIG2B is a schematic diagram of a communication system provided in an embodiment of the present application;

[0090] FIG3A is a schematic diagram of Tables 13-16 specified in the protocol provided in an embodiment of the present application;

[0091] FIG3B is a schematic diagram of Tables 13-17 specified in the protocol provided in an embodiment of the present application;

[0092] FIG4A is a schematic diagram of three multiplexing modes of SSB and CORESET#0 provided in an embodiment of the present application;

[0093] FIG4B is a schematic diagram of a process of a UE looking up a table through pdcch-ConfigSIB1 according to an embodiment of the present application;

[0094] FIG4C is a schematic diagram of Tables 13-18 specified in the protocol provided in an embodiment of the present application;

[0095] FIG4D is a schematic diagram of Table 13-11 of the protocol provided in an embodiment of the present application;

[0096] FIG5A is a schematic diagram showing the contents of the MIB in the SSB provided in an embodiment of the present application;

[0097] FIG5B is a flow chart of a communication method provided in an embodiment of the present application;

[0098] FIG5C is a timing diagram of WUS, SSB, and SIB1 in a signal broadcast period provided by an embodiment of the present application;

[0099] FIG6 is a flow chart of a communication method provided in an embodiment of the present application;

[0100] FIG7A is a flow chart of a communication method provided in an embodiment of the present application;

[0101] FIG7B is a timing diagram of DRS, WUS, SSB, and SIB1 in a signal broadcast period provided by an embodiment of the present application;

[0102] FIG7C is a timing diagram of DRS, WUS, and SSB in a signal broadcast period provided by an embodiment of the present application;

[0103] FIG7D is a timing diagram of DRS, WUS, SSB, and SIB1 in a signal broadcast period provided by an embodiment of the present application;

[0104] FIG7E is a timing diagram of DRS, WUS, SSB, and SIB1 in a signal broadcast period provided by an embodiment of the present application;

[0105] FIG8 is a flow chart of a communication method provided in an embodiment of the present application;

[0106] FIG9 is a flow chart of a communication method provided in an embodiment of the present application;

[0107] FIG10 is a flow chart of a communication method provided in an embodiment of the present application;

[0108] FIG11 is a flow chart of a communication method provided in an embodiment of the present application;

[0109] FIG12 is a flow chart of a communication method provided in an embodiment of the present application;

[0110] FIG13 is a flow chart of a communication method provided in an embodiment of the present application;

[0111] FIG14 is a flow chart of a communication method provided in an embodiment of the present application;

[0112] FIG15 is a schematic diagram of the hardware structure of a network device provided in an embodiment of the present application;

[0113] FIG16 is a schematic diagram of the hardware structure of a UE provided in an embodiment of the present application. DETAILED DESCRIPTION

[0114] Illustrative embodiments of the present application include, but are not limited to, communication methods, devices, and systems.

[0115] First, the terms involved in this application are explained.

[0116] 1. Community access:

[0117] UE access to a cell mainly involves the following phases: cell search and random access. Specifically, after the cell search process, the UE has achieved downlink synchronization with the cell and obtained the cell's physical cell identifier (PCI). Subsequently, the UE can obtain the cell's system information (SI) and configure the cell based on this information, thereby accessing the cell and operating normally within the cell.

[0118] 2. System information (SI):

[0119] SI mainly includes the master information block (MIB) and system information blocks (SIBs). SIBs other than MIB and SIB1 are called other system information blocks (OSI). Among them, the system information that the UE must obtain to normally reside on the cell and initiate random access includes: MIB and SIB1.

[0120] In addition to MIB and SIB1, the network device can provide the rest of the system information (i.e., OSI) to the UE when the UE needs it. In this case, OSI is a signal sent by the network device based on the UE's request, which is called an on-demand signal.

[0121] In the following embodiments of the present application, a signal sent by a network device based on a request from a UE may be referred to as an on-demand signal, and a signal periodically sent by a network device may be referred to as an always-on signal.

[0122] 5G NR introduces two types of minimum system information (MSI) and remaining minimum system information (RMSI). Table 1 shows the relationship between MSI, RMSI, MIB, and SIB.

[0123] Table 1:

[0124] A cell sends system information to all UEs within the cell via the broadcast control channel (BCCH). The BCCH is mapped to the broadcast channel (BCH) and the downlink shared channel (DL-SCH). The BCH is only used to transmit MIB information and is mapped to the physical broadcast channel (PBCH). The DL-SCH is used to transmit various SIB information and is mapped to the physical downlink shared channel (PDSCH).

[0125] 3. Synchronization Signal and Physical Broadcast Channel Block (SS / PBCH Block, SSB):

[0126] As shown in Figure 1B, the SSB includes the primary synchronization signal (PSS), the secondary synchronization signal (SSS), and the physical broadcast channel (PBCH). In the time domain, the SSB occupies four orthogonal frequency division multiplexing (OFDM) symbols, numbered 0 to 3. In the frequency domain, one SSB occupies 240 consecutive subcarriers, or 20 RBs (1 RB = 12 subcarriers) in the frequency domain. The subcarriers are numbered 0 to 239 within the block.

[0127] Among them, the UE can use the PSS and SSS to synchronize downlink with the cell in the time domain, and can use the system information carried on the PBCH, such as the master information block (MIB), to decode the received SIB1 to obtain the basic configuration information required to access the cell, so that the UE can access the cell based on the decoded basic configuration information.

[0128] As shown in Figure 1C, SSB defines the mapping of PSS, SSS, PBCH and PBCH-associated demodulation reference signal (DMRS) (i.e., DM-RS) in time-frequency resources. Specifically, Figure 1C shows the time-frequency resource mapping relationship in Table 7.4.3.1-1 in protocol TS38.211, where k and l represent the time domain and frequency domain positions, respectively. In addition, the v value in the table shown in Figure 1C is determined by the physical cell identification (ID), This is done to stagger the DMRS of the PBCH in the frequency domain to reduce inter-cell interference.

[0129] and, 5G defines 1008 physical cell IDs, ranging from 0 to 1007. The UE can obtain the above formula by detecting the PSS sequence and SSS sequence. and in,

[0130] Figure 1A illustrates only the example of network device 02 broadcasting SSB and SIB1 on four beams. In practice, the network device may periodically broadcast SSB and SIB1 on more or fewer beams. Furthermore, in Figure 1A , UE 01 receives SSB and SIB1 in one cell. In practice, the UE may receive SSB and SIB1 in multiple cells, which is specifically defined in this application.

[0131] The period for the network device to broadcast SSB and SIB1 can be, for example, 20 milliseconds (ms), or a period of other sizes. At this time, SSB and SIB1 are signals sent periodically by the network device, that is, always-on signals. As shown in Figure 1D, under normal circumstances, network device 02 will periodically broadcast SSB and SIB1 on multiple beams (Figure 1D is illustrated by broadcasting SSB on 4 beams as an example). In this way, the UE can synchronize with the network device 02 based on the received SSB, specifically downlink synchronization, which includes clock synchronization, radio frame synchronization, symbol synchronization, obtaining the identity of the network device 02 (cell), etc. The UE can then decode the received SIB1 based on the MIB carried by the PBCH in the SSB to obtain the basic configuration information required to access the network device 02. However, the continuous transmission of SSB and SIB1 on multiple beams by the network device 02 will cause the network device 021 to consume more power.

[0132] For example, referring to Table 2, it is the percentage increase of the power consumption of the network device when SSB and SIB1 are transmitted in the frequency bands FR1 and FR2.

[0133] Table 2:

[0134] Among them, FR1 supports up to 8 beams, and FR2 supports up to 64 beams. The operating frequency band of FR1 is 450MHz~6GHz, also known as the Sub-6GHz band, and supports 8 beams. The operating frequency band of FR2 is 24.25GHz~52.6GHz, also known as millimeter wave, and supports 64 beams. For example, FR1 in Table 2 can be a 30kHz operating frequency band with 8 beams (i.e., FR1@30kHz&8beam), and FR2 can be a 120kHz operating frequency band with 64 beams (i.e., FR2@120kHz&64beam). It can be seen that minimizing the transmission of SSB or SIB1 can save network power consumption and achieve network energy saving (NES).

[0135] To this end, the present application provides a communication system, which may be a fifth generation (5G) communication system, or a hybrid architecture of LTE and 5G, or a 5G NR system, as well as new communication systems (such as 6G) that will emerge in future communication developments.

[0136] The above-mentioned communication system may be, for example, the example shown in FIG. 2A or FIG. 2B , including a network device 22 and a UE 21 .

[0137] In the communication system shown in FIG2A , the network device 22 can indicate to the UE 21 whether one of the SSB or SIB1 is sent on-demand for the UE, that is, whether one of the SSB or SIB1 is an on-demand signal. If the SSB or SIB1 is indicated as an on-demand signal, the network device can send the SSB or SIB1 after receiving the UE's request, instead of actively sending the SSB or SIB1. As a result, the network device 02 does not need to periodically broadcast one of the SSB or SIB1, thereby reducing the power consumption of the network device 02 and achieving network energy saving NES. Moreover, when the network device 22 of the cell 20 where the UE is located indicates to the UE 21 that the SSB and / or SIB1 is an on-demand signal, the UE 21 will only receive the SSB and / or SIB1 if it initiates a request to the network device 22, thereby reducing the resource consumption caused by the UE receiving the signal and the resource consumption caused by the process of parsing the SIB1, which is conducive to the UE's rapid access to the network device.

[0138] Optionally, the MIB of the SSB sent by the network device to the UE may include identification information, which indicates whether SIB1 is an always-on signal or an on-demand signal. Then, when SIB1 is an on-demand signal, the UE may request the network device to send SIB1.

[0139] Optionally, the table or target parameter associated with the configuration information in the MIB of the SSB sent by the network device to the UE can indicate whether SIB1 is an always-on signal or an on-demand signal. Furthermore, when SIB1 is an on-demand signal, the UE can request the network device to send SIB1.

[0140] Optionally, the network device can periodically broadcast a synchronization signal for downlink synchronization with lower power consumption, such as a discovery reference signal (DRS) or a low power synchronization signal (LP-SS). In this case, DRS and LP-SS can indicate that SSB and SIB1 are on-demand signals.

[0141] Optionally, in a carrier aggregation scenario, the UE may use system information SIB or dedicated signaling on the primary cell (PCell) where the primary carrier is located to indicate whether the SSB and / or SIB1 on the secondary cell (SCell) where the UE's secondary carrier is located is an on-demand signal.

[0142] In the communication system shown in Figure 2B, network device 22 can indicate to the UE whether it needs to receive SIB1 after receiving an SSB, that is, whether the network device should send SIB1 after sending an SSB. In this case, network device 02 does not need to periodically broadcast SIB1, reducing power consumption of network device 02 and achieving network energy conservation. Furthermore, when network device 22 in cell 23 where the UE is located indicates that the UE does not need to receive SIB1 after receiving an SSB, resource consumption caused by the UE receiving SIB1 and resource consumption caused by parsing SIB1 can be reduced, which facilitates the UE to quickly access the network device.

[0143] Optionally, the MIB of the SSB sent by the network device to the UE may include identification information, which indicates whether the UE needs to receive SIB1 after receiving the SSB. Then, in a scenario where the UE does not need to access the network device, the identification information may indicate that the UE does not need to receive SIB1 after receiving the SSB, and the UE will not perform the process of receiving and parsing SIB1. Conversely, in a scenario where the UE needs to access the network device, the identification information may indicate that the UE needs to receive SIB1 after receiving the SSB, so that the UE can receive and parse SIB1 based on the received SSB, and then access the network device based on the SSB and SIB1.

[0144] Optionally, a table or target parameter associated with the configuration information in the MIB of the SSB sent by the network device to the UE may indicate whether SIB1 needs to be received after receiving the SSB. The table associated with the above configuration information may be a table searched based on the configuration information in the MIB, and the target parameter may be a parameter calculated based on the configuration information in the MIB.

[0145] Similarly, the table or target parameter associated with the above configuration information may indicate that the UE does not need to receive SIB1 after receiving the SSB, so that the UE does not perform the process of receiving and parsing SIB1. Conversely, the table or target parameter associated with the above configuration information may indicate that the UE needs to receive SIB1 after receiving the SSB, so that the UE can receive and parse SIB1 based on the received SSB, and then access the network device based on the SSB and SIB1.

[0146] In the embodiments provided in the present application, the network device 22 may be any device located on the network side and having wireless transceiver functions, including but not limited to: a base station (gNodeB or gNB) or a transmission receiving point (TRP) in new radio (NR). The network device 22 may be: a macro base station, a micro base station, a pico base station, a small station, a relay station, or a balloon station. The network device 22 may include one or more co-site or non-co-site transmission points (TRP). The network device 22 may also be a wireless controller, a centralized unit (CU), and / or a distributed unit (DU) in a cloud radio access network (CRAN) scenario. The network device 22 may communicate with a terminal device, or communicate with a terminal device through a relay station.

[0147] UE21 can communicate with multiple base stations of different technologies. For example, UE21 can communicate with a base station that supports the LTE network, or a base station that supports the 5G network, or a base station of a 3G or 2G network, or a base station of a higher standard such as 6G, and can also establish dual connections with a base station that supports the LTE network and a base station of the 5G network.

[0148] In the embodiments provided in the present application, UE21 can be in various forms, for example, a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a vehicle-mounted terminal device, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, a wearable terminal device, etc. UE can also sometimes be referred to as a terminal device, an access terminal device, a vehicle-mounted terminal, an industrial control terminal, a UE unit, a UE station, a mobile station, a mobile station, a remote station, a remote terminal device, a mobile device, a UE terminal device, a terminal device, a wireless communication device, a UE agent or a UE device, etc. The terminal can also be a fixed terminal or a mobile terminal.

[0149] In some embodiments, the UE in the above communication system may be an energy-saving UE, the cell where the UE is located may be an energy-saving carrier, and the cell where the UE is located may be an energy-saving cell. In this case, the network equipment and UE in the communication system have energy-saving requirements.

[0150] The above-mentioned Figures 2A and 2B are described using an example in which a communication system includes a network device 22 and a UE 21. In other possible implementations, the communication system may include multiple UEs or multiple network devices. Alternatively, in other possible implementations, the network device 22 in the communication system may be replaced with a network element in another form, which is not limited to this. In this application, only the interaction between the UE 21 and the network device 22 in the communication system shown in Figures 2A and 2B is described as an example.

[0151] Referring to Table 3, a schematic diagram of the contents of the MIB messages of LTE and NR is shown, that is, Table 3 shows the contents of the MIB messages of 4G and 5G (such as 5G NR).

[0152] Table 3:

[0153] As shown in Table 3, the 4G MIB message includes the system frame number (SFN (8BIT)), downlink bandwidth (dl-Bandwidth), physical hybrid ARQ indicator channel (PHICH) configuration (phich-Config) and SIB1 scheduling information (schedulingInfoSIB1).

[0154] Comparing the MIB messages in 5G NR with those in 4G, both contain SFN. This application is mainly applied to the 5G NR system. The following is a detailed description of the contents of the 5G MIB message.

[0155] The FrameNumber in 5G NR is the system frame number, which is used for synchronization between the UE and the network. Only the 6 most significant bits (MSBs) of the 10-bit system frame number are carried in the MIB message. The 4 least significant bits (LSBs) of the SFN are transmitted in the PBCH transport block, and the lower 4 bits are included in the PBCH payload information.

[0156] subCarrierSpacingCommon is the subcarrier spacing used to indicate the subcarrier spacing used for SIB1, initial access Msg2 / 4 (random access signaling), and broadcast SI. For low-frequency bands (sub 6G, that is, bands below 6GHz), the subcarrier spacing SCS range is <15kHz, 30kHz>; for millimeter wave (mmWave) bands, the subcarrier spacing is <60kHz, 120kHz>. This field is passed to the physical layer when establishing the PDSCH channel.

[0157] ssb-subcarrierOffset is the subcarrier offset, which indicates the frequency domain offset of SSB relative to the Common Resource Block (CRB), that is, the frequency domain offset of CRB. How many subcarriers are offset?

[0158] pdcch-ConfigSIB1 represents the PDCCH SIB1 configuration, which is used to configure the Type 0 PDCCH common search space (CSS) information for SIB1, such as the control resource set CORESET (e.g., ControlResourceSetZero (CORESET#0)) and the monitoring opportunity (SearchSpace, e.g., SearchSpaceZero). The pdcch-ConfigSIB1 field is 8 bits in total, with the upper 4 bits used to configure CORESET#0 and the lower 4 bits used to configure SearchSpaceZero. pdcch-ConfigSIB1 is also known as RMSI-PDCCH-Config.

[0159] In addition, cellBarred indicates cell access barring, indicating whether the cell prohibits UEs from camping on it. intraFreqReselection indicates inter-frequency reselection, indicating whether intra-frequency cell reselection is allowed. dmrs-TypeA-Position indicates the dmrs-TypeA position, indicating the position of the (first) downlink (DL) DM-RS.

[0160] In addition, the ssb-subcarrierOffset field in the MIB can be used to calculate k SSB The value of k SSB The value of is used to determine whether the UE will receive the RMSI message (ie SIB1). SSB The calculation formula of the value is the following formula (1), and k SSB The value is calculated as follows:

[0161] FR1:

[0162] FR2:k SSB =ssb-SubcarrierOffset (2)

[0163] in, The PBCH payload information is obtained and reported by the physical layer to the radio resource control (RRC) layer. SSB The relationship between RMSI and RI.

[0164] Table 4:

[0165] From Table 4, we can see that for FR1, k SSB Less than or equal to 23, for FR2 k SSBWhen it is less than or equal to 11, it means that the UE will receive RMSI after receiving SSB. The SSB at this time is called cell-defining SSB (CD-SSB), which means that RMSI can be parsed later, that is, SIB1 can be parsed.

[0166] From Table 4, we can see that for FR1, k SSB Greater than or equal to 24 and less than or equal to 29, for FR2, k SSB When it is greater than or equal to 12 and less than or equal to 13, it means that the UE may receive SIB1 after jumping resources after receiving SSB, such as in, Indicates the Global Synchronization Channel Number (GSCN) of a parsed SSB. It is based on k SSB and pdcch-ConfigSIB1 fields.

[0167] As an example, for FR1, It is based on k SSB The table 13-16 specified in the protocol is obtained by looking up the table 13-16 in the pdcch-ConfigSIB1 field. Table 13-16 shown in Figure 3A shows that k SSB In combination with control resource set 0 (controlResourceSetZero, CORESET#0) and searchSpaceZero, in FR1, The mapping between .

[0168] As an example, for FR1, It is based on k SSB The table 13-16 specified in the protocol is obtained by looking up the table 13-16 in the pdcch-ConfigSIB1 field. Table 13-16 shown in Figure 3A shows that k SSB The combination of control resource set 0 (controlResourceSetZero, CORESET#0) and searchSpaceZero is the same as in FR1. The mapping between .

[0169] As an example, for FR2, It is based on k SSBThe table 13-17 specified in the protocol is obtained by looking up the table 13-17 in the pdcch-ConfigSIB1 field. Table 13-17 shown in Figure 3B shows that k SSB The combination of control resource set 0 (controlResourceSetZero, CORESET#0) and searchSpaceZero is the same as in FR2. The mapping between .

[0170] In addition, it can be seen from Table 4 that for FR1, k SSB Equal to 31, for FR2 k SSB When it is equal to 13, it means that the UE will not receive SIB1 after receiving SSB. The range where SIB1 does not exist is The upper 4 bits (i.e., the upper 4 bits) of the pdcch-ConfigSIB1 field in the MIB message, The lower 4 bits (i.e., the lower 4 bits) of the pdcch-ConfigSIB1 field in the MIB message.

[0171] For SIB1, the UE needs to decode the SSB and then parse the corresponding PDSCH according to the MIB instructions. SIB1 is scheduled via the PDCCH and PDSCH. Specifically, to obtain SIB1 from the PDSCH, the UE first searches for the PDCCH that schedules the SIB1 PDSCH from the Type 0 PDCCH CSS, i.e., searches based on CORESET#0 and the Type 0 PDCCH CSS.

[0172] As shown in Figure 4A, three multiplexing patterns for SSB and CORESET#0 are defined for NR. The UE selects a time-frequency resource consisting of several consecutive resource blocks and several consecutive OFDM symbols for the control resource set (e.g., CORESET#0) of the Type0-PDCCH CSS to determine which multiplexing pattern to use for acquiring SIB1.

[0173] Optionally, the UE may determine the selected multiplexing mode by looking up the pdcch-ConfigSIB1 field in the SSB.

[0174] Understandably, both the SSB and Type 0 PDCCH CSS CORESET#0 offer considerable flexibility in time-frequency domain resources, leading to a complex mapping relationship. To express this relationship using the limited number of bits in the MIB, certain constraints must be placed on the mapping. The protocol defines various time-frequency domain mapping combinations. For example, Tables 13-1 through 13-15 of TS 38.213 illustrate the mapping between control resource sets and the parameters ControlResourceSetZero and SearchSpaceZero for different system configurations.

[0175] As shown in Figure 4B, the UE can query Tables 13-1 to 13-10 defined in TS38.213 through the upper 4 bits (MSB) of the pdcch-ConfigSIB1 field to obtain the number of consecutive RBs in the frequency domain and the number of consecutive symbols in the time domain of the PDCCH. The UE can query Tables 13-11 to 13-15 defined in TS38.213 through the lower 4 bits (LSB) of the pdcch-ConfigSIB1 field to obtain the necessary parameters for calculating the starting position of the monitoring opportunity and calculate the monitoring opportunity.

[0176] Optionally, the UE can select a table based on the SSB subcarrier spacing (SCS), PDCCH SCS, bandwidth, whether spectrum sharing is enabled, etc. The UE then determines the PDCCH search space based on ControlResourceSetZero (i.e., CORESET#0) and SearchSpaceZero configured in the pdcch-ConfigSIB1 field in the MIB.

[0177] As an example, for the 10 tables defined in TS 38.213, Table 13-1 to Table 13-10, the UE can determine which one to select based on the following parameters:

[0178] 1) SSB subcarrier spacing: defined in TS38.104 protocol and fixed for each frequency band.

[0179] 2) Subcarrier spacing of RMSI CORSET: determined by the SubcarrierSpaceCommon field in the MIB.

[0180] 3) The minimum bandwidth of the cell corresponding to the frequency band.

[0181] Tables 13-1 to 13-10 defined in TS38.213 each include five columns of data. The first column is the index (Index), and the second column is the multiplexing mode of SSB and CORESET#0. In addition, the value of the index (Index) in Tables 13-1 to 13-15 can be the value of the upper 4 bits of the pdcch-ConfigSIB1 field.

[0182] As shown in Figure 4C, a schematic diagram of Table 13-8 defined in TS38.213 is shown. As an example, after the UE selects Table 13-8, the index in the table can be selected using the upper 4 bits in pdcch-ConfigSIB1, where the second column in the table is the multiplexing mode of SSB and CORESET#0. For example, when the upper 4 bits in pdcch-ConfigSIB1 are 1, the data row with Index=1 in Table 13-8 is selected, and the multiplexing mode in the second column of the data row is determined to be Mode 1.

[0183] Optionally, for Tables 13-11 to 13-15 defined in TS38.213, the UE can determine which one to select based on the following parameters: multiplexing mode of SSB and CORESET#0; subcarrier spacing of SSB; subcarrier spacing of CORSET of RMSI; frequency range (such as FR1 or FR2).

[0184] Tables 13-11 to 13-15 defined in TS38.213 each include five columns of data, the first column being the index (Index). Furthermore, the values ​​of the indexes (Index) in Tables 13-11 to 13-15 may be the values ​​of the lower 4 bits in the pdcch-ConfigSIB1 field. As shown in FIG4D , this is a schematic diagram of Table 13-11 of TS38.213. As an example, after the UE selects Table 13-11, the index (Index) in the table may be selected using the lower 4 bits in pdcch-ConfigSIB1. For example, when the lower 4 bits in pdcch-ConfigSIB1 are 1, the data row with Index=1 in Table 13-11 is selected.

[0185] Next, based on the communication system shown in FIG. 2A above, the communication method provided in this application is described.

[0186] Example 1

[0187] In the application embodiment, the first bit in the MIB of the SSB can be used as the first identification information, and the first identification information can be used to indicate whether SIB1 is an on-demand signal. As shown in Figure 5A, it is a schematic diagram of the content of the MIB in the SSB. Currently, there is 1 bit unused in the MIB. As shown in Figure 5A, the "spare" bit in the MIB is unused. Then, this 1 bit can be used to indicate whether the SIB1 of the network device where the current SSB is located is an on-demand signal. For example, the value of the spare field in the MIB is 1, that is, the MIB in Figure 5A contains "spare BIT STRING ((SIZE (1))", indicating that the SIB1 sent by the network device where the current SSB is located is an on-demand signal. In addition, the value of the spare field in the MIB is 0, that is, the MIB contains "spare BIT STRING ((SIZE (0))", indicating that the SIB1 sent by the network device where the current SSB is located is an always on signal.

[0188] As shown in (a) of FIG. 5B , a flow chart of a communication method provided in an embodiment of the present application is shown, and the method includes the following steps:

[0189] S501: The network device 22 broadcasts an SSB, and the value of the first bit in the MIB of the SSB is a first parameter.

[0190] Optionally, the network device 22 may broadcast the SSB within the cell 20 shown in FIG. 2A , so that the UE 2 may receive the SSB broadcast by the network device 22 when located within the cell 20.

[0191] In some other embodiments, the SSB may be sent by the UE at the request of the network device 22. For example, the SSB may be sent as a wake-up signal (WUS) to the UE 21, so that the network device 22 can start broadcasting the SSB after receiving the WUS. Here, the SSB broadcast by the network device 22 may be directed to the UE 21, thereby saving energy consumption.

[0192] S502: UE21 receives and parses the SSB. When it determines that the first bit value in the MIB of the SSB is the first parameter value, it determines that SIB1 is a signal sent by the network device based on the UE's request (on-demand), and sends a wake-up signal to the network device 22.

[0193] Optionally, the first bit is spare. For example, the first parameter value is 1, but is not limited to this value. In this case, the SIB1 sent by the network device 22 is an on-demand signal.

[0194] It can be understood that spare is an existing bit in the MIB. In practical applications, the present application can make use of the existing spare bit, such as defining a new name onDemandRmsi for it, and setting it as the first bit in the MIB to indicate whether there is SIB1 after the SSB. Then, the bit onDemandRmsi in the MIB takes the value of the first parameter value (such as 1), indicating that SIB1 is an on-demand signal. Correspondingly, the bit onDemandRmsi in the MIB takes the value of the second parameter value (such as 0), indicating that SIB1 is an always on signal.

[0195] S503: The network device 22 broadcasts SIB1, that is, sends SIB1 to the UE2 based on the received wake-up signal.

[0196] Accordingly, UE21 can parse SIB1 based on the received SSB.

[0197] Optionally, the network device 22 may broadcast SIB1 to the UE 21 based on the WUS, or send SIB1 a preset number of times.

[0198] Optionally, a field may be set in the WUS to indicate that the WUS requests the network device to wake up and send SIB1. The field may be an idle field in the WUS, but is not limited thereto.

[0199] As shown in Figure 5C, a timing diagram is shown in which network device 22 broadcasts SSB during a signal broadcast period and broadcasts SIB1 after UE 21 sends WUS. In this case, network device 22 sends SSB during each signal broadcast period before receiving WUS, and sends both SSB and SIB1 during each signal broadcast period after receiving WUS.

[0200] S503a: UE21 accesses network device 22 according to SSB and SIB1.

[0201] Optionally, UE21 may access the network device 22 according to the received SSB and / or SIB1, such as accessing the cell 20 where the network device 22 is located.

[0202] As shown in (b) of FIG. 5B , a flow chart of a communication method provided in an embodiment of the present application is shown, and the method includes the following steps:

[0203] S504: Network device 22 broadcasts SSB and SIB1, and the first bit in the MIB of the SSB is set to the second parameter value. At this time, UE 21 is in cell 20 where network device 22 is located, and receives SIB1 periodically sent by network device 22.

[0204] Optionally, the network device 22 may broadcast SSB first and then broadcast SIB1. Usually, the broadcast time interval between the two signals is short.

[0205] For example, the second parameter value is 0. For example, the bit onDemandRmsi in the MIB has a value of 0. In this case, it indicates that the SIB1 sent by the network device 22 is an always on signal.

[0206] Optionally, UE 21 may periodically receive and parse SIB1 broadcast on each beam by network device 22. Furthermore, a timing diagram of SSB and SIB1 may refer to FIG. 1D , that is, each signal broadcast period includes SSB and SIB1.

[0207] S505: UE2 receives and parses the SSB, and when determining that the first bit in the MIB of the SSB is the second parameter value, determines that SIB1 is a signal periodically sent (always on) by the network device, and receives SIB1 sent by the network device 22. At this time, UE2 can parse SIB1 based on the SSB.

[0208] S506: UE21 accesses network device 22 according to SSB and SIB1.

[0209] Optionally, UE21 may access the network device 22 according to the received SSB and / or SIB1, such as accessing the cell 20 where the network device 22 is located.

[0210] In this way, after receiving SSB and SIB1, UE21 can perform downlink synchronization according to the PSS and SSS in the SSB, and can also decode the information in SIB1 according to the MIB information in the SSB to obtain the configuration information required to access the network device 22, so that UE21 can access the network device 22 according to the decoded configuration information, and can further establish a connection with the network device 22, such as a radio resource control (RRC) connection.

[0211] In this way, the present application uses the first bit in the SSB to indicate whether SIB1 is an on-demand signal, thereby avoiding network equipment from periodically sending SIB1 and achieving network energy saving. Furthermore, after the UE obtains the SSB and determines that SIB1 is an on-demand signal, it can avoid periodically receiving and parsing SIB1 on each beam, thereby facilitating the UE to quickly access the network.

[0212] Example 2

[0213] In one embodiment of the application, the first identification information may be carried in the resource element (RE) where the PBCH is located in the MIB of the SSB, and the first identification information may be used to indicate whether SIB1 is an on-demand signal.

[0214] As shown in (a) of FIG6 , it is a flow chart of a communication method provided in an embodiment of the present application, and the method includes the following steps:

[0215] S601: The network device 22 broadcasts an SSB, and the REs occupied by the PBCH in the MIB of the SSB are zero power.

[0216] Optionally, the network device 22 may broadcast the SSB within the cell 20 shown in FIG. 2A , so that the UE 2 may receive the SSB broadcast by the network device 22 when located within the cell 20.

[0217] S602: UE2 receives and parses the SSB, and when it determines that the REs occupied by the PBCH in the MIB of the SSB are zero power, determines that SIB1 is an on-demand signal, and sends a wake-up signal to the network device 22.

[0218] As shown in Figure 1B, the first identification information is carried on the REs other than the PSS and SSS in the SSB, or on the REs occupied by the PBCH. For example, when the REs other than the PSS and SSS in the SSB are zero power, or when the REs occupied by the PBCH are zero power, it indicates that the subsequent SIB1 is an on-demand signal. At this time, the PSS and SSS are only used for UEs within the cell to obtain downlink synchronization with network equipment such as base stations. On the contrary, when the REs other than the PSS and SSS in the SSB are not zero power, or when the REs occupied by the PBCH are zero power, it indicates that the subsequent SIB1 is an always on signal.

[0219] It can be understood that zero power of REs generally means that these REs are not used to transmit valid data signals.

[0220] S603: The network device 22 broadcasts the SIB1 sent by UE 21, that is, broadcasts the SIB1 based on the received wake-up signal.

[0221] Specifically, the wake-up signal may indicate SIB1 to wake up the network device 22 to broadcast SIB1. For example, the timing diagram of SSB and SIB1 may refer to FIG5C.

[0222] S606a: UE21 accesses network device 22 according to SSB and SIB1.

[0223] Optionally, UE21 may access the network device 22 according to the received SSB and / or SIB1, such as accessing the cell 20 where the network device 22 is located.

[0224] As shown in (b) of FIG6 , a flow chart of a communication method provided in an embodiment of the present application is shown, and the method includes the following steps:

[0225] S604: The network device 22 broadcasts the SSB and SIB1, and the REs occupied by the PBCH in the MIB of the SSB are not zero power.

[0226] At this time, the SIB1 sent by network device 22 is an always-on signal. UE 21 can then periodically receive and parse the SIB1 on each beam from network device 22. For a timing diagram of SSB and SIB1, see FIG1D .

[0227] S605: UE21 receives and parses the SSB, and when it determines that the REs occupied by the PBCH in the MIB of the SSB are not zero power, determines that SIB1 is an always-on signal, and receives SIB1 sent by the network device 22.

[0228] It can be understood that the above S601 to S603 and S604 to S605 can be parallel processes, and the method can continue to execute the following S606 after executing S603 and S605.

[0229] S606: UE21 accesses network device 22 according to SSB and SIB1.

[0230] Optionally, UE21 may access the network device 22 according to the received SSB and / or SIB1, such as accessing the cell 20 where the network device 22 is located.

[0231] In this way, the present application realizes network energy saving and enables UE to quickly access the network by indicating whether SIB1 is an on-demand signal through the power of RE of PBCH of MIB in SSB.

[0232] Example 3

[0233] In one embodiment of the application, the DRS signal may be broadcasted to indicate that SIB1 is an on-demand signal.

[0234] FIG7 is a flow chart of a communication method provided in an embodiment of the present application, which includes the following steps:

[0235] S701: The network device 22 broadcasts a DRS or LP-SS.

[0236] Optionally, the network device 22 may broadcast the DRS in the cell 20 shown in FIG2A , so that the UE 2 may receive the DRS broadcast by the network device 22 when it is in the cell 20. The UE may synchronize with the network device based on the DRS, specifically for downlink synchronization.

[0237] Optionally, the network device 22 may broadcast an LP-SS signal within the cell 20 shown in FIG. 2A , so that the UE 2 within the cell 20 may receive the LP-SS signal broadcast by the network device 22. That is, the UE 21 within the signal coverage area may achieve downlink synchronization with the network device 22 based on the received low power synchronization signal (LP-SS).

[0238] In this embodiment, the network device 22 can send DRS with low power consumption, specifically broadcast DRS. In this way, the UE 21 that is idle or inactive within the signal coverage of the network device 22 can use the DRS to synchronize with the network device 22, specifically for downlink synchronization.

[0239] Among them, the DRS sent by the network device 22 can have the following three non-limiting implementation methods.

[0240] In the first implementation example, DRS may include only PSS and SSS. In addition, DRS may occupy two OFDMs in the time domain, wherein PSS occupies the first OFDM and SSS occupies the second OFDM. At the same time, DRS may occupy 127 subcarriers in the frequency domain, with PSS and SSS occupying 127 subcarriers respectively in different time domains. In this embodiment, after receiving DRS, UE21 specifically completes downlink synchronization based on the PSS and SSS in the DRS.

[0241] In addition, in other implementation examples, the number of symbols occupied by PSS and SSS can be other numbers, and the subcarriers occupied by PSS and SSS in the frequency domain can also be other subcarriers, etc.

[0242] In the second implementation example, the DRS may include the PSS, SSS, and one or more reserved resource elements (REs). In this case, the DRS can still occupy two OFDMs in the time domain, with the PSS occupying the first OFDM and the SSS occupying the second OFDM. At the same time, the DRS can occupy 127 subcarriers in the frequency domain, with the PSS and SSS occupying 127 subcarriers in different time domains, respectively.

[0243] In other implementation examples, the number of symbols occupied by the PSS and SSS may be other numbers, and the subcarriers occupied by the PSS and SSS in the frequency domain may also be other subcarriers, etc. In addition, the number of subcarriers occupied by REs may be other numbers.

[0244] In the third implementation example, DRS can multiplex the structure of SSB, which can include not only PSS and SSS, but also PBCH. At this time, DRS can occupy 4 OFDMs in the time domain, of which PSS occupies the first OFDM and SSS occupies the third OFDM. At the same time, DRS can occupy 240 subcarriers in the frequency domain, and PSS and SSS occupy 127 subcarriers respectively in different time domains. Among them, when sending DRS, the network device 22 can carry MIB information in the PBCH in the same way as sending SSB. Alternatively, in the DRS sent by the network device 22, the PBCH may not carry any information, such as the RE where the PBCH is located is zero power, so as to save the energy consumption generated by the network device 22 sending the data carried on the PBCH. In addition, when sending DRS, the network device 22 does not send SIB1.

[0245] It can be understood that the above four implementation methods are only some exemplary explanations. In other embodiments, the DRS sent by the network device 22 can also be implemented in other ways. For example, the DRS can occupy 3 or 5 symbols in the time domain, etc., and there is no limitation on this.

[0246] In actual application, the network device 22 may broadcast the DRS periodically, and the period may be, for example, 20 milliseconds (ms) or 40 ms, etc., which is not limited. For ease of description, the period during which the network device 22 sends a signal is referred to as a signal broadcast period.

[0247] In one possible implementation, within each signal broadcast period, the network device 22 may transmit DRSs on multiple beams. For example, the network device 22 may transmit DRSs on 8 or 64 beams. Furthermore, the network device 22 may transmit one DRS or multiple DRSs on each beam. When transmitting DRSs on different beams, the network device 22 may use different time domains.

[0248] Alternatively, in each signal broadcast cycle, the network device 22 may transmit the DRS regardless of beam. In this case, the network device 22 may transmit one DRS; or the network element may transmit multiple DRSs, so that the UE 21 can improve the success rate of decoding the DRS based on the multiple DRSs.

[0249] Optionally, when an energy-saving carrier / cell only sends a DRS discovery reference signal, for example, the carrier where the network device 22 is located is an energy-saving carrier, or the cell where the network device 22 is located is an energy-saving cell, it means that both SSB and SIB1 are on-demand signals, rather than always on signals.

[0250] S702: UE21 sends a wake-up signal to the network device, which can wake up the network device 22 to send SSB and SIB1.

[0251] Optionally, when UE21 determines that the received synchronization signal is a DRS or a LP-SS, it may determine that SIB1 is an on-demand signal.

[0252] In some other embodiments, the wake-up signal sent by UE 21 may wake up network device 22 to send one of SSB or SIB 1. It is understood that network device 22 may select which signal to broadcast, SSB or SIB 1, based on the energy consumption of the network device and the request of the UE.

[0253] S703: The network device 22 broadcasts the SSB and SIB1. That is, the network device 22 sends the SSB and SIB1 to the UE 21 based on the received WUS.

[0254] When the network device 22 determines that there is a UE sending a WUS, it indicates that there is currently a UE that needs to access the network device 22. Therefore, the network device 1 enters the state of broadcasting signals with higher power consumption from the state of broadcasting DRS with low power consumption, specifically the state of broadcasting SSB and SIB1 with higher power consumption.

[0255] In this way, after receiving SSB and SIB1, UE21 can not only continue to maintain downlink synchronization according to the PSS and SSS in the SSB, but also decode the information in SIB1 according to the MIB information in the SSB to obtain the configuration information required to access the network device 22, so that UE21 can access the network device 1 according to the decoded configuration information, and can further establish a connection with the network device 1, such as a radio resource control (RRC) connection.

[0256] In the first implementation example, after receiving WUS, the network device 22 can resume periodic broadcasting of SSB and SIB1, so that one or more UEs (including UE21) within the signal coverage range of the network device 22 can access the network device 22 based on the received SSB and SIB1.

[0257] In the second implementation example, after receiving the WUS, the network device 22 may broadcast the SSB and SIB1 within a preset number of signal broadcast cycles. For example, the network device 22 may broadcast the SSB and SIB1 continuously within two signal broadcast cycles. After the network device 22 completes the broadcast of the SSB and SIB1 within the preset number of signal broadcast cycles, it may re-enter the state of broadcasting the DRS with low power consumption until the network device 22 receives the WUS again and then resumes broadcasting the SSB and SIB1.

[0258] The number of times the network device 22 continuously broadcasts the SSB and SIB1 may be defined in the standard. Alternatively, when the network device 22 previously broadcasts the DRS, the number of times the network device 22 continuously broadcasts the SSB and SIB1 after receiving the WUS may be carried in the DRS, so that the UE 21 can improve the success rate of signal decoding by continuously receiving the SSB and SIB1.

[0259] As shown in Figure 7B, a timing diagram is shown in which network device 22 broadcasts DRS during a signal broadcast period and broadcasts SSB and SIB1 after UE 21 sends WUS. That is, after network device 22 receives WUS, SSB and SIB1 are sent during each signal broadcast period.

[0260] In actual application, in the communication system shown in FIG2A , in addition to the implementation corresponding to the timing diagram of FIG7B , other implementations may also be possible. Some exemplary descriptions are given below with reference to the accompanying drawings.

[0261] In implementation one, network device 22 can periodically broadcast DRS (without broadcasting SSB and SIB1), and after receiving WUS sent by UE 21, only broadcast SSB. Figure 7C shows a timing diagram in which network device 22 broadcasts DRS during a signal broadcast period, and after UE 21 sends WUS, network device 22 only broadcasts SSB. That is, after network device 22 receives WUS, it only broadcasts SSB during each signal broadcast period.

[0262] In implementation two, network device 22 can periodically broadcast DRS (without broadcasting SSB and SIB1), and after receiving WUS sent by UE 21, only broadcast SIB1. Figure 7D shows a timing diagram of network device 22 broadcasting DRS during a signal broadcast period and broadcasting SIB1 after UE 21 sends WUS. That is, after network device 22 receives WUS, only SIB1 is broadcast during each signal broadcast period.

[0263] In implementation three, network device 22 can periodically broadcast SSB (without broadcasting SIB1) and broadcast SIB1 after receiving WUS sent by UE 21. As shown in Figure 7E, a timing diagram is described in which the network element first broadcasts SSB and, after UE 21 sends WUS, network device 22 broadcasts SIB1.

[0264] S704: UE21 accesses network device 22 according to SSB and SIB1.

[0265] It should be noted that, in this embodiment, the example in which the network device 22 broadcasts the SSB and SIB1 after UE2 sends the WUS is used for explanation. In other embodiments, after receiving the WUS, the network device 22 may only broadcast the SSB or only broadcast the SIB1, and the UE2 may access the network device 22 according to the SSB or SIB1 broadcast by the network device 22. This is exemplified below.

[0266] In a first implementation, after receiving the WUS, the network device 22 may only broadcast the SSB. In a specific implementation, the UE 2 may store the SIB1 information of the network device 22 locally in advance.

[0267] In a second implementation, after receiving the WUS, the network device 22 may only broadcast SIB1. At this time, the UE 2 may pre-store the MIB information locally. The method of pre-saving the MIB information is not limited in this embodiment.

[0268] In this way, the present application can indicate through DRS or LP-SS whether the SSB and / or SIB1 sent by the network device is an on-demand signal, thereby reducing the resources consumed by the network device to broadcast SSB and SIB1, and avoiding the situation where the UE continuously receives SSB and SIB1, causing delays in accessing the network.

[0269] Example 4

[0270] In one embodiment of the application, the application may indicate whether the SSB and SIB1 in the secondary cell (SCell) where the UE's secondary carrier is located are on-demand signals through signaling on the primary cell (PCell) where the UE's primary carrier is located.

[0271] As shown in (a) of FIG8 , a flow chart of a communication method provided in an embodiment of the present application is shown, and the method includes the following steps:

[0272] S801: The network device 22 broadcasts a first signal through the primary cell PCell where the primary carrier of the UE is located. The first signal indicates that the SSB and SIB1 sent on at least one secondary cell SCell where the secondary carrier of the UE is located are on-demand signals.

[0273] For example, in the case of CA carrier aggregation, the secondary cell where the secondary carrier is located may be an energy saving (ES) cell. In this case, the SSB and SIB in the secondary cell where the secondary carrier is located may be on-demand signals to save network energy consumption.

[0274] In a first implementation manner, the first signal is a system message SIB1 or other system message SIB broadcasted via the PCell.

[0275] Optionally, the first signal includes first domain information. The value of the first domain information is the seventh parameter value (such as true), and SIB1 is an on-demand signal. Alternatively, the value of the first domain information is the eighth parameter value (such as false), and SIB1 is an always on signal.

[0276] Optionally, the first signal includes the second field information, and SIB1 is an on-demand signal; or, the SIB does not include the second field information, and SIB1 is an always-on signal. For example, the SIB1 sent on the PCell where the primary carrier of the UE is located includes the second field information, such as the value of the second field information is TRUE.

[0277] Exemplarily, the present application may add a field on-demandSib1 ENUMERATED{true} to the SIB1 or other SIB messages broadcast by the primary carrier of the UE, and the information in the field may be the first field information or the second field information.

[0278] Optionally, an identifier of the secondary cell, such as an ID, may be added before the field on-demandSib1 ENUMERATED{true} of the first signal. The network device may indicate whether the SSB or SIB in the secondary cell of one or more UEs is an on-demand signal. Each secondary cell corresponds to a field on-demandSib1 ENUMERATED{true} and an identifier (ID or Index) of the secondary cell.

[0279] Optionally, the first signal indicates that different signals in the SSB and / or SIB1 on different SCells of the UE are on-demand signals. For example, the first signal indicates that the SSB on SCell 1 corresponding to ID1 is an always-on signal, and SIB1 is an on-demand signal. In addition, the first signal indicates that the SSB and SIB1 on SCell 21 corresponding to ID2 are both on-demand signals.

[0280] Optionally, the first signal is dedicated signaling sent by the PCell of the UE in a connected state. For example, the dedicated signaling is radio resource control (RRC) signaling, such as RRC reconfiguration signaling (RRCReconfiguration).

[0281] Optionally, the RRC signaling includes a first information element IE; the value of the first IE is the ninth parameter value (such as true), and SIB1 is an on-demand signal; or, the value of the first IE is the tenth parameter value (such as false), and SIB1 is an always on signal.

[0282] Optionally, the RRC signaling includes a second information element IE, and SIB1 is an on-demand signal; or, the RRC signaling does not include a second IE, and SIB1 is an always on signal.

[0283] Exemplarily, the present application may add an IE: scell-on-demandSib1ENUMERATED{true} in the RRC reconfiguration signaling, and the IE may be the first IE or the second IE mentioned above.

[0284] S802: UE2 determines based on the first signal that the SSB and SIB1 sent on at least one secondary cell SCell where the UE's secondary carrier is located are on-demand signals, and sends a wake-up signal on at least one secondary cell where the secondary carrier is located. The wake-up signal is used to wake up the network device 22 to broadcast SSB or SIB1 on the at least one secondary cell.

[0285] Optionally, UE2 may wake up the network device on each SCell to send SSB and / or SIB1.

[0286] Optionally, the primary cell and secondary cell of the UE can be cells of different network devices or different cells of the same network device, and this embodiment of the application does not specifically limit this. For example, the primary cell where the primary carrier is located and the secondary cell where the secondary carrier is located shown in Figure 2A can both be cells covered by the signal of network device 22.

[0287] In some other embodiments, the wake-up signal sent by UE 21 may wake up network device 22 to send one of SSB or SIB 1. It is understood that network device 22 may select which signal to broadcast, SSB or SIB 1, based on the energy consumption of the network device and the request of the UE.

[0288] Optionally, corresponding to the SSB being an on-demand signal, the UE sends a first wake-up signal to the network device on at least one SCell, and the network device can send the SSB based on the first wake-up signal on at least one SCell.

[0289] Optionally, corresponding to the signal that SIB1 is on-demand, a second wake-up signal is sent to the network device on at least one SCell, and the network device may send SIB1 on at least one SCell based on the second wake-up signal.

[0290] Optionally, corresponding to signals that both SSB and SIB1 are on-demand, a third wake-up signal is sent to the network device on at least one SCell, and the network device can send SSB and SIB1 on at least one SCell based on the third wake-up signal.

[0291] For example, assuming that cell 20 shown in FIG2A is the primary cell where UE 21's primary carrier resides, after UE 21 receives SIB1 or other SIBs broadcast by network device 22 in cell 20, it can determine whether the SSB and SIB in the secondary cell where UE 2's secondary carrier resides are on-demand. Furthermore, network device 22 broadcasts the SSB and SIB1 in the cell where the secondary carrier resides, and UE 2, when located in that cell, can receive the SSB and SIB1 broadcast by network device 22.

[0292] S803: The network device 22 broadcasts the SSB and SIB1 on at least one secondary cell where the secondary carrier is located. That is, the network device 22 broadcasts the SSB and SIB1 on at least one secondary cell where the secondary carrier is located based on the wake-up signal.

[0293] S803a: UE21 performs downlink services and / or uplink services on at least one secondary cell where the secondary carrier is located based on the SSB and SIB1.

[0294] As shown in (b) of FIG8 , a flow chart of a communication method provided in an embodiment of the present application is shown, and the method includes the following steps:

[0295] S804: In response to the first signal indicating that the SSB and SIB1 sent on at least one secondary cell SCell where the secondary carrier of the UE is located are always on signals, the network device 22 broadcasts SSB and SIB1 on at least one secondary cell where the secondary carrier is located.

[0296] S805: UE21 receives SSB on at least one secondary cell where the secondary carrier is located, determines based on the first signal that the SSB and SIB1 sent on at least one secondary cell SCell where the UE's secondary carrier is located are always on signals, and receives SIB1 on at least one secondary cell where the secondary carrier is located.

[0297] It can be understood that the above S801 to S803 and S804 to S805 can be parallel processes, and the method can continue to execute the following S606 after executing S803 and S805.

[0298] S806: UE21 performs downlink services and / or uplink services on at least one secondary cell where the secondary carrier is located based on the SSB and SIB1.

[0299] Similarly, the description of S801 to S806 is similar to that of S701 to S706, with the only difference being that the network access process in S801 to S806 is applied in a carrier aggregation scenario.

[0300] In this way, the present application can implement signaling on the primary cell where the primary carrier resides, indicating whether the SSB and SIB1 of the secondary cell where the UE's secondary carrier resides are on-demand signals. This allows network equipment to reduce the resources occupied by sending SSB and SIB1 on the secondary cell, which is beneficial for network energy saving. In addition, the resource cells on the UE side that receive and parse SSB and SIB1 on the secondary cell are reduced, which is beneficial for rapid network access.

[0301] Example 5

[0302] In one embodiment of the application, a table associated with configuration information in the MIB of the SSB may be used to indicate whether SIB1 is an on-demand signal.

[0303] As shown in (a) of FIG9 , a flow chart of a communication method provided in an embodiment of the present application is shown, and the method includes the following steps:

[0304] S901: The network device 22 broadcasts an SSB, and the first table associated with the first configuration information of the MIB of the SSB indicates that SIB1 is an on-demand signal.

[0305] The MIB of the SSB includes first configuration information, and the first configuration information is associated with the first table.

[0306] Optionally, the first configuration information is SIB1 configuration information (pdcch-ConfigSIB1), and the SIB1 configuration information is used to configure the Type0-PDCCH common search space CSS for parsing SIB1, and is also used to configure the control resource set CORESET of the Type0-PDCCH CSS.

[0307] Optionally, the first table is a table corresponding to Type0-PDCCH CSS, and the upper 4 bits of the SIB1 configuration information correspond to the index of the data row in the first table. For example, the first table may be Table 13-1 to Table 13-10 defined in TS38.213.

[0308] Optionally, the first table is a table corresponding to CORESET, and the lower 4 bits of the SIB1 configuration information correspond to the index of the data row in the first table.

[0309] In this application, the signal indicating whether SIB1 is on-demand in the first table can be implemented in the following three ways.

[0310] In a first implementation, the first table corresponds to a UE supporting Network Energy Saving (NES), and SIB1 is an on-demand signal. For example, the first table may be a table newly added to a standard (such as Release 19). When the first table corresponds to a Type 0-PDCCH CSS, the table may differ from Tables 13-1 to 13-10 defined in TS 38.213. When the first table corresponds to a table corresponding to a CORESET, the table may differ from Tables 13-11 to 13-15 defined in TS 38.213.

[0311] Alternatively, the first table corresponds to UEs that do not support network energy saving NES, and SIB1 is an always on signal. In this case, the first table may be a table already in the existing standard, such as the tables in Table 13-1 to Table 13-10 defined in TS38.213.

[0312] In the second implementation, the present application may define a new column of data in the table defined by the standard, and use the new column to indicate whether SIB1 is an on-demand signal.

[0313] As an example, the first table item contained in the first table; and the value of the first table item in the data row indexed based on the SIB1 configuration information in the first table is the third parameter value (for example, the value is 1), and SIB1 is an on-demand signal; or, the value of the first table item in the data row indexed based on the SIB1 configuration information in the first table is the fourth parameter value (for example, the value is 0), and SIB1 is an always on signal.

[0314] Optionally, the first table item is the last column in the first table, such as the data column in the sixth column of Table 13-8 defined in TS38.213.

[0315] In a third possible implementation, the data behavior indexed based on the SIB1 configuration information in the first table is a reserved row, and SIB1 is an on-demand signal; or, the data row indexed based on the SIB1 configuration information in the first table is not a reserved row, and SIB1 is an always on signal. That is, the reserved row in the existing table is used, and the row indicates whether SIB1 is an on-demand signal. For example, when the first table is Table 13-8 defined by TS38.213, if the index determined by the SIB1 configuration information is 7 to 15, then the data behavior indexed based on the SIB1 configuration information in the first table is a reserved row, then the SIB1 after the current SSB is an on-demand signal. In addition, when the first table is other tables, the index of the reserved row of the data behavior indexed based on the SIB1 configuration information in the first table is other values, which are not specifically limited here.

[0316] S902: UE21 receives and parses the SSB, determines that the first table associated with the first configuration information of the MIB of the SSB indicates that SIB1 is an on-demand signal, and sends a wake-up message to the network device.

[0317] S903: The network device 22 broadcasts SIB1, that is, sends SIB1 based on the received wake-up information.

[0318] S903a: UE21 accesses network device 22 based on SSB and SIB1.

[0319] As shown in (b) of FIG9 , a flow chart of a communication method provided in an embodiment of the present application is shown, and the method includes the following steps:

[0320] S904: The first table associated with the first configuration information of the MIB corresponding to the SSB indicates that SIB1 is an always on signal, and the network device 22 broadcasts the SSB and SIB1.

[0321] S905 : UE21 receives the SSB sent by the network device 22 , determines that the first table associated with the first configuration information of the MIB of the SSB indicates that SIB1 is an always on signal, and receives the SIB1 sent by the network device 22 .

[0322] It can be understood that the above S901 to S903 and S904 to S905 can be parallel processes, and the method can continue to execute the following S906 after executing S903 and S905.

[0323] S906: UE21 accesses network device 22 based on SSB and SIB1.

[0324] In this way, the present application can indicate whether SIB1 is an on-demand signal through a table associated with the configuration information of the MIB in the SSB, thereby reducing the resources consumed by network equipment in broadcasting SSB and SIB1, and avoiding the situation where the UE continuously receives SSB and SIB1, resulting in delays in accessing the network.

[0325] Example 6

[0326] In one embodiment of the application, whether SIB1 is an on-demand signal can be indicated by a target parameter associated with the configuration information in the MIB of the SSB.

[0327] As shown in (a) of FIG10 , a flow chart of a communication method provided in an embodiment of the present application is shown, and the method includes the following steps:

[0328] S1001: The network device 22 broadcasts an SSB, and the first configuration information of the MIB of the SSB is associated with k SSB The parameter indicates that SIB1 is an on-demand signal.

[0329] Among them, the first configuration information in the MIB of the SSB, the first configuration information is associated with the target parameter.

[0330] Optionally, the first configuration information is the subcarrier offset (ssb-SubcarrierOffset) in the MIB of the SSB, and the subcarrier offset is used to calculate k SSB Parameters, the target parameter is k SSB Parameters. Among them, k SSB The parameter value is the fifth parameter value, SIB1 is the on-demand signal; or, k SSB The parameter value is the sixth parameter value, and SIB1 is the always on signal.

[0331] Understandable, k SSB Parameters are also associated with tables, such as Tables 13-16 shown in FIG3A , k SSB When the parameter value is the fifth parameter value, the fifth parameter value can be the k corresponding to the reserved row in Table 13-16. SSB Parameter. For example, the fifth parameter value can be 30. Correspondingly, k SSBWhen the parameter value is the sixth parameter value, the sixth parameter value can be the k corresponding to the non-reserved row in Table 13-16. SSB Parameters, such as 24-29.

[0332] S1002: UE21 receives and parses the SSB, and determines the k associated with the first configuration information of the MIB of the SSB. SSB The parameter indicates that SIB1 is an on-demand signal, and a wake-up message is sent to the network device 22 .

[0333] S1003: The network device 22 broadcasts SIB1, that is, broadcasts SIB1 based on the received wake-up information.

[0334] S1003a: UE21 accesses network device 22 according to SSB and SIB1.

[0335] As shown in (b) of FIG10 , a flow chart of a communication method provided in an embodiment of the present application is shown, and the method includes the following steps:

[0336] S1004: The network device 22 broadcasts SSB and SIB1, and the first configuration information of the MIB of the SSB is associated with k SSB The parameter indicates that SIB1 is always on.

[0337] S1005: UE21 receives the SSB sent by the network device 22, and determines the k associated with the first configuration information of the MIB of the SSB. SSB The parameter indicates that SIB1 is an on-demand signal, and the SIB1 sent by the network device 22 is received.

[0338] It can be understood that the above S1001 to S1003 and S1004 to S1005 can be parallel processes, and the method can continue to execute the following S1006 after executing S1003 and S1005.

[0339] S1006: UE21 accesses network device 22 according to SSB and SIB1.

[0340] In addition, the target parameters provided in the embodiment of the present application are not limited to the above k SSB The parameters may also be other achievable parameters, which are not specifically limited in the embodiments of the present application.

[0341] Thus, this application associates k with the configuration information of MIB in SSB SSB The parameter can indicate whether SIB1 is an on-demand signal, thereby reducing the resources consumed by network equipment to broadcast SSB and SIB1, and avoiding the situation where the UE continuously receives SSB and SIB1, causing delays in accessing the network.

[0342] Next, based on the communication system shown in FIG. 2B above, the communication method provided in this application is described.

[0343] Example 7

[0344] In the application embodiment, the first bit in the MIB of the SSB can be used as the first identification information, and the first identification information can be used to indicate whether there is SIB1 after the SSB, that is, whether the network device sends SIB1 after sending the SSB. For example, the value of the spare field in the MIB shown in Figure 5A is 1, that is, the MIB in Figure 5A contains "spare BIT STRING((SIZE(1))", which indicates that the network device will not send SIB1 after sending the SSB. In addition, the value of the spare field in the MIB is 0, that is, the MIB contains "spare BIT STRING((SIZE(0))", which indicates that the network device sends SIB1 after sending the SSB.

[0345] As shown in (a) of FIG11 , a flow chart of a communication method provided in an embodiment of the present application is shown, and the method includes the following steps:

[0346] S1101: The network device 22 broadcasts an SSB, and the first bit in the MIB of the SSB is set to a first parameter value.

[0347] Optionally, the network device 22 may broadcast the SSB within the cell 20 shown in FIG. 2B , so that the UE 2 may receive the SSB broadcast by the network device 22 when located within the cell 20.

[0348] In some other embodiments, the SSB may be sent by the UE at the request of the network device 22. For example, the SSB may be sent as a wake-up signal (WUS) to the UE 21, so that the network device 22 can start broadcasting the SSB after receiving the WUS. Here, the SSB broadcast by the network device 22 may be directed to the UE 21, thereby saving energy consumption.

[0349] S1102: UE21 receives and parses the SSB. When it determines that the first bit in the MIB of the SSB is the first parameter value, it determines that there is no SIB1 after the SSB, and does not receive or parse the SIB1.

[0350] Optionally, the first bit is spare. For example, the first parameter value is 1, but is not limited to this value. In this case, the network device 22 does not send SIB1 after sending SSB.

[0351] It can be understood that spare is an existing bit in the MIB. In practical applications, the present application can make use of the existing spare bit, for example, define a new name haveRmsi for it, and set it as the first bit in the MIB to indicate whether there is SIB1 after the SSB. Then, the bit haveRmsi in the MIB takes the value of the first parameter value (such as 1), indicating that there is no SIB1 after the SSB. Correspondingly, the bit haveRmsi in the MIB takes the value of the second parameter value (such as 0), indicating that there is SIB1 after the SSB.

[0352] In some other embodiments, when the MIB of the SSB received by UE2 contains a first bit, and the first bit indicates that there is no SIB1 after the SSB, UE2 may also request network device 22 to send SIB1. For example, when the UE determines that the first bit in the MIB of the SSB indicates that there is no SIB1 after the SSB, it may send a wake-up signal (WUS) to the network device. Furthermore, network device 22 may send SIB1 to UE21 based on the received wake-up signal, such as by broadcasting SIB1 to UE2.

[0353] S1103: Network device 22 broadcasts SSB and SIB1, and the first bit in the MIB of the SSB is set to the second parameter value. At this time, as shown in FIG2B , UE 21 is in cell 23 where network device 22 is located, and receives SIB1 periodically sent by network device 22.

[0354] For example, the second parameter value is 0. For example, the haveRmsi bit in the MIB is 0. This indicates that network device 22 sends SIB1 after sending SSB. UE 21 can periodically receive and parse SIB1 on each beam from network device 22. For a timing diagram of SSB and SIB1, refer to FIG1D .

[0355] As shown in (b) of FIG11 , a flow chart of a communication method provided in an embodiment of the present application is shown, and the method includes the following steps:

[0356] S1104: UE21 receives and parses the SSB. When it determines that the value of the first bit in the MIB of the SSB is the second parameter value, it determines that there is SIB1 after the SSB, and receives the SIB1 sent by the network device 22.

[0357] S1105: UE21 accesses network device 22 according to SSB and SIB1.

[0358] It can be understood that the above-mentioned S1101 to S1102 and S1103 to S1105 can be parallel processes.

[0359] The detailed description of steps S1101 to S1105 can refer to the relevant description of S501 to S506 in Figure 5B, which will not be repeated in this embodiment of the application. The only difference is that the first bit in the MIB of the SSB in S1101 to S1105 indicates whether SIB1 is after the SSB.

[0360] In this way, the present application uses the first bit in the SSB to indicate whether there is SIB1 after the SSB, thereby avoiding the network device from periodically sending SIB1 and achieving network energy saving. In addition, after obtaining the SSB and determining that there is no SIB1 after the SSB, the UE can avoid periodically receiving SIB1 on each beam, thereby facilitating rapid access to the network.

[0361] Example 8

[0362] In one embodiment of the application, the first identification information may be carried in the RE where the PBCH in the MIB of the SSB is located, and the first identification information may be used to indicate whether there is SIB1 after the SSB.

[0363] As shown in (a) of FIG12 , a flow chart of a communication method provided in an embodiment of the present application is shown, and the method includes the following steps:

[0364] S1201: The network device 22 broadcasts an SSB, and the REs occupied by the PBCH in the MIB of the SSB are zero power.

[0365] Optionally, the network device 22 may broadcast the SSB in the cell 23 shown in FIG. 2B , so that the UE 2 may receive the SSB broadcast by the network device 22 when located in the cell 23.

[0366] S1202: UE21 receives and parses the SSB. If it determines that the REs occupied by the PBCH in the MIB of the SSB are zero power, it determines that there is no SIB1 after the SSB and does not receive or parse the SIB1. At this time, network device 22 does not send SIB1 after sending the SSB, that is, there is no SIB1 after the SSB.

[0367] In some other embodiments, when the REs occupied by the PBCH in the MIB of the SSB received by UE2 are zero power and there is no SIB1 after the SSB, UE2 may also request network device 22 to send SIB1. For example, after the UE sends a wake-up signal (WUS) to the network device, network device 22 may send SIB1 to UE21 based on the received wake-up signal, such as by broadcasting SIB1 to UE2. For example, after UE2 initiates the WUS, the timing diagram of SSB and SIB1 can refer to Figure 5C.

[0368] As shown in (b) of FIG12 , a flow chart of a communication method provided in an embodiment of the present application is shown, and the method includes the following steps:

[0369] S1203: The network device 22 broadcasts the SSB and SIB1, and the REs occupied by the PBCH in the MIB of the SSB are not zero power.

[0370] At this time, network device 22 sends SIB1 after sending SSB. Then, UE 21 can periodically receive and analyze SIB1 on each beam from network device 22. At this time, the timing diagram of SSB and SIB1 can be referred to Figure 1D.

[0371] S1204: UE2 receives and parses the SSB, and when it determines that the REs occupied by the PBCH in the MIB of the SSB are not zero power, it determines that there is SIB1 after the SSB, and receives the SIB1 sent by the network device 22.

[0372] S1205: UE21 accesses network device 22 according to SSB and SIB1.

[0373] It can be understood that the above S1201 to S1202 and S1203 to S1205 can be parallel processes.

[0374] The detailed description of steps S1201 to S1205 can refer to the relevant description of S601 to S606 in Figure 6, which is not repeated in this embodiment of the application. The only difference is that the REs occupied by PBCH in the MIB of the SSB in S1201 to S1205 are used to indicate whether SIB1 is after the SSB.

[0375] In this way, the present application indicates whether there is SIB1 after the SSB through the power indication of the RE of the PBCH of the MIB in the SSB, thereby achieving network energy saving and enabling the UE to quickly access the network.

[0376] Embodiment 9

[0377] In one embodiment of the application, a table associated with configuration information in the MIB of the SSB may indicate whether there is SIB1 after the SSB.

[0378] As shown in (a) of FIG13 , a flow chart of a communication method provided in an embodiment of the present application is shown, and the method includes the following steps:

[0379] S1301: The network device 22 broadcasts an SSB, and the first table associated with the first configuration information of the MIB of the SSB indicates that there is no SIB1 after the SSB.

[0380] The MIB of the SSB includes first configuration information, and the first configuration information is associated with the first table.

[0381] Optionally, the first configuration information is SIB1 configuration information (pdcch-ConfigSIB1), and the SIB1 configuration information is used to configure the Type0-PDCCH common search space CSS for parsing SIB1, and is also used to configure the control resource set CORESET of the Type0-PDCCH CSS.

[0382] Optionally, the first table is a table corresponding to Type0-PDCCH CSS, and the upper 4 bits of the SIB1 configuration information correspond to the index of the data row in the first table. For example, the first table may be Table 13-1 to Table 13-10 defined in TS38.213.

[0383] Optionally, the first table is a table corresponding to CORESET, and the lower 4 bits of the SIB1 configuration information correspond to the index of the data row in the first table.

[0384] The first table in this application indicates whether there is SIB1 after SSB, which can be implemented in the following three ways.

[0385] In the first implementation, the first table corresponds to a UE supporting Network Energy Saving (NES), indicating that there is no SIB1 after the SSB. For example, the first table may be a table newly added to a standard (such as release 19). When the first table corresponds to a Type 0-PDCCH CSS, the table may differ from Tables 13-1 to 13-10 defined in TS 38.213. When the first table corresponds to a table corresponding to a CORESET, the table may differ from Tables 13-11 to 13-15 defined in TS 38.213.

[0386] Alternatively, the first table corresponds to a UE that does not support network energy saving NES, indicating that SSB is followed by SIB1. In this case, the first table may be a table already in the existing standard, such as the tables in Table 13-1 to Table 13-10 defined in TS38.213.

[0387] In the second implementation, the present application may define a new column of data in the table defined by the standard, and use the newly added list to indicate whether there is SIB1 after SSB.

[0388] As an example, the first table item contained in the first table; and the value of the first table item in the data row indexed based on the SIB1 configuration information in the first table is the third parameter value (for example, the value is 1), and there is SIB1 after the SSB; or, the value of the first table item in the data row indexed based on the SIB1 configuration information in the first table is the fourth parameter value (for example, the value is 0), and there is no SIB1 after the SSB.

[0389] Optionally, the first table item is the last column in the first table, such as the data column in the sixth column of Table 13-8 defined in TS38.213.

[0390] In a third possible implementation, the data rows indexed based on the SIB1 configuration information in the first table are reserved rows, and there is no SIB1 after the SSB; or, the data rows indexed based on the SIB1 configuration information in the first table are not reserved rows, and there is SIB1 after the SSB. That is, the reserved rows in the existing table are used, and the rows indicate that there is SIB1 after the SSB. For example, when the first table is Table 13-8 defined by TS38.213, if the index determined by the SIB1 configuration information is 7 to 15, then the data rows indexed based on the SIB1 configuration information in the first table are reserved rows, and then there is no SIB1 after the current SSB. In addition, when the first table is other tables, the index of the reserved row of the data rows indexed based on the SIB1 configuration information in the first table is other values, which are not specifically limited here.

[0391] S1302: UE21 receives and parses the SSB, determines that the first table associated with the first configuration information of the MIB of the SSB indicates that there is no SIB1 after the SSB, and does not receive or parse the SIB1.

[0392] It can be understood that when there is no SIB1 after the SSB, the UE does not receive or parse the SIB1, and no resource consumption is caused.

[0393] In some other embodiments, when UE2 determines that the first table associated with the first configuration information of the MIB of the SSB indicates that there is no SIB1 after the SSB, UE2 may further request network device 22 to send SIB1. For example, the UE may send a wake-up signal (WUS) to the network device. Furthermore, network device 22 may send SIB1 to UE21 based on the received wake-up signal, such as by broadcasting SIB1 to UE2.

[0394] As shown in (b) of FIG13 , a flow chart of a communication method provided in an embodiment of the present application is shown, and the method includes the following steps:

[0395] S1303: The network device 22 broadcasts SSB and SIB1, and the first table associated with the first configuration information of the MIB of the SSB indicates that SIB1 follows the SSB.

[0396] S1304: UE21 receives and parses the SSB, determines that the first table associated with the first configuration information of the MIB of the SSB indicates that there is SIB1 after the SSB, and receives the SIB1 sent by the network device 22.

[0397] S1305: UE21 accesses network device 22 according to SSB and SIB1.

[0398] It can be understood that the above S1301 to S1302 and S1303 to S1305 can be parallel processes.

[0399] Among them, the relevant descriptions of S1301 to S1305 in this application refer to S901 to S906 in Figure 9 above, and this application will not go into details.

[0400] In this way, the present application can indicate whether there is SIB1 after SSB through the table associated with the configuration information of MIB in SSB, thereby reducing the resources consumed by network equipment in broadcasting SSB and SIB1, and avoiding the situation where UE continuously receives SSB and SIB1, resulting in delays in accessing the network.

[0401] Example 10

[0402] In one embodiment of the application, the target parameter associated with the configuration information in the MIB of the SSB can be used to indicate whether there is SIB1 after the SSB.

[0403] As shown in (a) of FIG. 14 , a flow chart of a communication method provided in an embodiment of the present application is shown, and the method includes the following steps:

[0404] S1401: The network device 22 broadcasts the SSB, and the first configuration information of the MIB of the SSB is associated with k SSB The parameter indicates that there is no SIB1 after the SSB.

[0405] Among them, the first configuration information in the MIB of the SSB, the first configuration information is associated with the target parameter.

[0406] Optionally, the first configuration information is the subcarrier offset (ssb-SubcarrierOffset) in the MIB of the SSB, and the subcarrier offset is used to calculate k SSB Parameters, the target parameter is k SSB Parameters. Among them, k SSB The parameter value is the fifth parameter value, and the UE does not need to receive SIB1 after receiving SSB; or, k SSB The parameter value is the sixth parameter value, and the UE needs to receive SIB1 after receiving SSB.

[0407] Understandable, k SSB Parameters are also associated with tables, such as Tables 13-16 shown in FIG3A , k SSB When the parameter value is the fifth parameter value, the fifth parameter value can be the k corresponding to the reserved row in Table 13-16. SSB Parameter. For example, the fifth parameter value can be 30. Correspondingly, kSSB When the parameter value is the sixth parameter value, the sixth parameter value can be the k corresponding to the non-reserved row in Table 13-16. SSB Parameters, such as 24-29.

[0408] S1402: UE21 receives and parses the SSB, and determines the k associated with the first configuration information of the MIB of the SSB. SSB The parameter indicates that there is no SIB1 after the SSB, and SIB1 is not received or parsed.

[0409] In some other embodiments, when UE2 determines that the target parameter associated with the first configuration information of the MIB of the SSB indicates that there is no SIB1 after the SSB, UE2 may also request network device 22 to send SIB1. For example, the UE may send a wake-up signal (WUS) to the network device. Furthermore, network device 22 may send SIB1 to UE21 based on the received wake-up signal, such as by broadcasting SIB1 to UE2.

[0410] As shown in (b) of FIG14 , a flow chart of a communication method provided in an embodiment of the present application is shown, and the method includes the following steps:

[0411] S1403: The network device 22 broadcasts SSB and SIB1, and the first configuration information of the MIB of the SSB is associated with k SSB The parameter indicates that SIB1 follows SSB.

[0412] S1404: UE21 receives and parses the SSB, and determines the k associated with the first configuration information of the MIB of the SSB. SSB The parameter indicates that there is SIB1 after SSB, and the SIB1 sent by the receiving network device 22 is received.

[0413] S1405: UE21 accesses network device 22 according to SSB and SIB1.

[0414] It can be understood that the above-mentioned S1401 to S1402 and S1403 to S1405 can be parallel processes.

[0415] Among them, the relevant descriptions of S1402 to S1405 in this application refer to S1002 to S1006 in the above Figure 10, and this application will not go into details.

[0416] In addition, the target parameters provided in the embodiment of the present application are not limited to the above k SSB The parameters may also be other achievable parameters, which are not specifically limited in the embodiments of the present application.

[0417] Thus, this application associates k with the configuration information of MIB in SSB SSBThe parameter can indicate whether SIB1 is present after SSB, thereby reducing the resources consumed by network equipment to broadcast SSB and SIB1, and avoiding the situation where the UE continuously receives SSB and SIB1, causing delays in accessing the network.

[0418] 15 and 16 , the hardware implementation of the network device and the UE will be further described.

[0419] Referring to Figure 15, a schematic diagram of the hardware structure of a network device is shown. The network device shown in Figure 15 includes at least one processor 111, at least one memory 112, at least one transceiver 113, at least one network interface 114 and one or more antennas 115. The processor 111, the memory 112, the transceiver 113 and the network interface 114 are connected, for example, via a bus. In an embodiment of the present application, the connection may include various interfaces, transmission lines or buses, etc., which are not limited in this embodiment. The antenna 115 is connected to the transceiver 113. The network interface 114 is used to connect the network device to other communication devices through a communication link. For example, the network interface 114 may include a network interface between the network device and a network device in the core network, such as an S1 interface. The network interface may include a network interface between the network device and other network devices, such as an X2 or Xn interface.

[0420] Among them, the processor 111 shown in Figure 15 can specifically complete the network device processing actions in the above method, the memory 112 can complete the storage actions in the above method, the transceiver 113 and the antenna 115 can perform the sending and receiving actions on the air interface in the above method, and the network interface 114 can complete the actions of interacting with the network device or other network devices in the above method.

[0421] The processor in the embodiments of the present application, such as processor 111, may include but is not limited to at least one of the following: a central processing unit (CPU), a microprocessor, a digital signal processor (DSP), a microcontroller unit (MCU), or an artificial intelligence processor, etc., which are various types of computing devices that run software. Each computing device may include one or more cores for executing software instructions to perform operations or processing. The processor can be a separate semiconductor chip or integrated into a semiconductor chip with other circuits. For example, it can form an SoC (system on chip) with other circuits (such as a codec circuit, a hardware acceleration circuit, or various bus and interface circuits), or it can be integrated into an ASIC as a built-in processor in the ASIC. The ASIC with the integrated processor can be packaged separately or together with other circuits. In addition to including a core for executing software instructions to perform operations or processing, the processor may further include necessary hardware accelerators, such as a field programmable gate array (FPGA), a programmable logic device (PLD), or a logic circuit that implements dedicated logic operations.

[0422] The memory in the embodiments of the present application may include at least one of the following types: read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or electrically erasable programmable read-only memory (EEPROM). In some scenarios, the memory may also be a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited to this.

[0423] The memory 112 can be independent and connected to the processor 111. Optionally, the memory 112 can be integrated with the processor 111, for example, integrated into a single chip. The memory 112 can store program codes for executing the technical solutions of the embodiments of the present application, and the execution is controlled by the processor 111. The various computer program codes executed can also be regarded as drivers for the processor 111. For example, the processor 111 is used to execute the computer program codes stored in the memory 112, thereby implementing the technical solutions of the embodiments of the present application.

[0424] The transceiver 113 can be used to support the reception or transmission of radio frequency signals between the network device and other devices, and the transceiver 113 can be connected to the antenna 115. The transceiver 113 includes a transmitter Tx and a receiver Rx. Specifically, one or more antennas 115 can receive radio frequency signals. The receiver Rx of the transceiver 113 is used to receive radio frequency signals from the antenna, convert the radio frequency signals into digital baseband signals or digital intermediate frequency signals, and provide the digital baseband signals or digital intermediate frequency signals to the processor 111 so that the processor 111 can further process the digital baseband signals or digital intermediate frequency signals, such as demodulation and decoding. In addition, the transmitter Tx in the transceiver 113 is also used to receive modulated digital baseband signals or digital intermediate frequency signals from the processor 111, convert the modulated digital baseband signals or digital intermediate frequency signals into radio frequency signals, and send the radio frequency signals through one or more antennas 115. Specifically, the receiver Rx can selectively perform one or more stages of down-mixing and analog-to-digital conversion on the RF signal to obtain a digital baseband signal or a digital intermediate frequency signal. The order of down-mixing and analog-to-digital conversion is adjustable. The transmitter Tx can selectively perform one or more stages of up-mixing and digital-to-analog conversion on the modulated digital baseband signal or digital intermediate frequency signal to obtain a RF signal. The order of up-mixing and digital-to-analog conversion is adjustable. Digital baseband signals and digital intermediate frequency signals can be collectively referred to as digital signals.

[0425] Figure 16 shows an example of the components of a UE provided in an embodiment of the present application. The UE may be, for example, a mobile phone, a smart wearable device (such as a smartwatch), etc. Taking a mobile phone as an example, the UE may include a processor 310, an external memory interface 320, an internal memory 321, a display 330, a camera 340, antenna 1, antenna 2, a mobile communication module 350, and a wireless communication module 360.

[0426] It should be understood that the structure illustrated in this embodiment does not constitute a specific limitation on the UE. In other embodiments, the UE may include more or fewer components than shown, or some components may be combined or separated, or arranged differently. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

[0427] The processor 310 may include one or more processing units. For example, the processor 310 may include an application processor (AP), a modem processor, a graphics processing unit (GPU), an image signal processor (ISP), a controller, a time-frequency codec, a digital signal processor (DSP), a baseband processor, and / or a neural-network processing unit (NPU). The different processing units may be independent devices or integrated into one or more processors.

[0428] It is understood that the interface connection relationship between the modules illustrated in this embodiment is only for illustrative purposes and does not constitute a structural limitation on the UE. In other embodiments of the present application, the UE may also adopt different interface connection methods in the above embodiments, or a combination of multiple interface connection methods.

[0429] The external memory interface 320 can be used to connect an external memory card, such as a Micro SD card, to expand the UE's storage capacity. The external memory card communicates with the processor 310 via the external memory interface 320 to implement data storage. For example, files such as music and time and frequency files can be stored on the external memory card.

[0430] The internal memory 321 can be used to store computer executable program codes, and the executable program codes include instructions. The processor 310 executes various functional applications and data processing of the UE by running the instructions stored in the internal memory 321. The internal memory 321 may include a program storage area and a data storage area. Among them, the program storage area may store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc. The data storage area may store data created during the use of the UE (such as time-frequency stream data), etc. In addition, the internal memory 321 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, a universal flash storage (UFS), etc. The processor 310 executes various functions and data processing of the UE by running the instructions stored in the internal memory 321, and / or the instructions stored in the memory provided in the processor.

[0431] The wireless communication function of the UE can be implemented through antenna 1, antenna 2, mobile communication module 350, wireless communication module 360, modem processor and baseband processor.

[0432] Antenna 1 and Antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in the UE can be used to cover a single or multiple communication frequency bands. Different antennas can also be reused to improve antenna utilization. For example, antenna 1 can be reused as a diversity antenna for a wireless local area network. In other embodiments, the antennas can be used in conjunction with a tuning switch.

[0433] The mobile communication module 350 can provide solutions for wireless communications including 2G / 3G / 4G / 5G applied on the UE. The mobile communication module 350 may include at least one filter, a switch, a power amplifier, a low noise amplifier (LNA), etc. The mobile communication module 350 can receive electromagnetic waves from the antenna 1, and filter, amplify, and process the received electromagnetic waves, and transmit them to the modulation and demodulation processor for demodulation. The mobile communication module 350 can also amplify the signal modulated by the modulation and demodulation processor, and convert it into electromagnetic waves for radiation through the antenna 1. In some embodiments, at least some of the functional modules of the mobile communication module 350 can be set in the processor 310. In some embodiments, at least some of the functional modules of the mobile communication module 350 can be set in the same device as at least some of the modules of the processor 310.

[0434] In some embodiments, the UE initiates or receives a call request via the mobile communication module 350 and the antenna 1 .

[0435] Furthermore, an operating system runs on the above-mentioned components. Examples include the iOS operating system, the Android operating system, and the Windows operating system. Applications can be installed and run on the operating system. Those skilled in the art will clearly understand that, for ease of description and brevity, the explanation and beneficial effects of the relevant contents of any of the above-mentioned UEs can be referred to the corresponding method embodiments provided above, and will not be further elaborated here.

[0436] In addition, an embodiment of the present application also provides a computer-readable storage medium, which stores instructions. When the computer-readable storage medium is run on one or more computing devices, the one or more computing devices execute the communication method of the above embodiment.

[0437] In addition, embodiments of the present application further provide a computer program product. When the computer program product is executed by one or more computing devices, the one or more computing devices perform any of the aforementioned communication methods. The computer program product may be a software installation package. When any of the aforementioned communication methods is required, the computer program product may be downloaded and executed on a computer.

[0438] Through the description of the above embodiments, those skilled in the art can clearly understand that the present application can be implemented by means of software plus necessary general hardware, and of course can also be implemented by special hardware including application-specific integrated circuits, special CPUs, special memories, special components, etc. In general, all functions performed by computer programs can be easily implemented with corresponding hardware, and the specific hardware structures used to implement the same function can also be various, such as analog circuits, digital circuits or special circuits, etc. However, for the present application, software program implementation is a better implementation method in most cases. Based on such an understanding, the technical solution of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a readable storage medium, such as a computer's floppy disk, USB flash drive, mobile hard disk, ROM, RAM, magnetic disk or optical disk, etc., and includes a number of instructions to enable a computer device (which can be a personal computer, training equipment, or network equipment, etc.) to execute the methods of each embodiment of the present application.

[0439] In the above embodiments, all or part of the embodiments may be implemented by software, hardware, firmware, or any combination thereof. When implemented by software, all or part of the embodiments may be implemented in the form of a computer program product.

[0440] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website, a computer, a training device or a data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) mode to another website, computer, training device or data center. The computer-readable storage medium can be any available medium that a computer can store or a data storage device such as a training device, a data center that includes one or more available media integrations. Available media can be magnetic media, (such as floppy disks, hard disks, tapes), optical media (such as DVDs), or semiconductor media (such as solid-state drives (SSDs)).

[0441] The system architecture and business scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. Ordinary technicians in this field will know that with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

Claims

1. A communication method, characterized in that: Applied to user equipment UE, the method includes: receiving a synchronization signal and a physical broadcast channel block (SSB) sent by a network device, where the SSB includes first identification information; It is determined based on the first identification information that the system information block SIB1 is a signal periodically sent by the network device, or a signal sent by the network device based on a request of the UE.

2. The method according to claim 1, characterized in that The method further comprises: Corresponding to the SIB1 being a signal periodically sent by the network device, receiving the SIB1 periodically sent by the network device; Corresponding to the SIB1 being a signal sent by the network device based on a request of the UE, a wake-up signal is sent to the network device, and the SIB1 sent by the network device based on the wake-up signal is received.

3. The method according to claim 1 or 2, characterized in that The first identification information is the first bit in the master information block MIB in the SSB; The first bit value is a first parameter value, and the SIB1 is a signal sent by the network device based on the request of the UE; The first bit value is a second parameter value, and the SIB1 is a signal periodically sent by the network device.

4. The method according to claim 3, characterized in that The first bit is a spare bit.

5. The method according to claim 1 or 2, characterized in that The first identification information is carried in a resource element RE where a physical broadcast channel PBCH in the SSB is located; The RE where the PBCH is located is zero power, and the SIB1 is a signal sent by the network device based on the request of the UE; The RE where the PBCH is located is not zero power, and the SIB1 is a signal periodically sent by the network device.

6. A communication method, characterized in that: Applied to user equipment UE, the method includes: receiving a synchronization signal and a physical broadcast channel block (SSB) sent by a network device, and first configuration information in a master information block (MIB) of the SSB, wherein the first configuration information is associated with a first table or a target parameter; The system information block SIB1 is determined based on the first table or the target parameter to be a signal periodically sent by the network device or a signal sent by the network device based on a request of the UE.

7. The method according to claim 6, characterized in that Corresponding to the SIB1 being a signal periodically sent by the network device, receiving the SIB1 periodically sent by the network device; Corresponding to the SIB1 being a signal sent by the network device based on a request of the UE, a wake-up signal is sent to the network device, and the SIB1 sent by the network device based on the wake-up signal is received.

8. The method according to claim 6 or 7, characterized in that The first configuration information is SIB1 configuration information, and the SIB1 configuration information is used to configure a Type0-PDCCH common search space CSS for parsing SIB1, and is further used to configure a control resource set CORESET of the Type0-PDCCH CSS; The first table is a table corresponding to the Type0-PDCCH CSS, and the upper 4 bits of the SIB1 configuration information correspond to the index of the data row in the first table; or, The first table is a table corresponding to the CORESET, and the lower 4 bits of the SIB1 configuration information correspond to the index of the data row in the first table.

9. The method according to any one of claims 6 to 8, characterized in that The first table corresponds to a UE supporting network energy saving NES, and the SIB1 is a signal sent by the network device based on a request of the UE; or, The first table corresponds to a UE that does not support network energy saving NES, and the SIB1 is a signal periodically sent by the network device.

10. The method according to any one of claims 6 to 8, characterized in that The first table contains a first entry; and The value of the first table entry in the data row indexed based on the SIB1 configuration information in the first table is a third parameter value, where the SIB1 is a signal sent by the network device based on a request from the UE; or, The value of the first table item in the data row indexed based on the SIB1 configuration information in the first table is a fourth parameter value, and the SIB1 is a signal periodically sent by the network device.

11. The method according to any one of claims 6 to 8, characterized in that The data rows indexed based on the SIB1 configuration information in the first table are reserved rows, where the SIB1 is a signal sent by the network device based on a request from the UE; or, The data row in the first table that is indexed based on the SIB1 configuration information is not a reserved row, and the SIB1 is a signal periodically sent by the network device.

12. The method according to claim 6 or 7, characterized in that The first configuration information is a subcarrier offset in the MIB of the SSB, and the subcarrier offset is used to calculate a k_SSB parameter, and the target parameter is the k_SSB parameter; The k_SSB parameter value is a fifth parameter value, and the SIB1 is a signal sent by the network device based on the request of the UE; or, The k_SSB parameter value is the sixth parameter value, and the SIB1 is a signal periodically sent by the network device.

13. A communication method, characterized in that: Applied to user equipment UE, the method includes: receiving a first signal through a primary cell PCell where a primary carrier of the UE is located; Based on the first signal, it is determined that the synchronization signal and physical broadcast channel block SSB and / or system information SIB1 sent on at least one secondary cell SCell where the secondary carrier of the UE is located are signals periodically sent by the network device or signals sent by the network device based on the request of the UE.

14. The method according to claim 13, characterized in that Corresponding to the SSB being a signal sent by the network device based on a request of the UE, sending a first wake-up signal to the network device on the at least one SCell, and receiving the SSB sent by the network device on the at least one SCell based on the first wake-up signal; Corresponding to the SIB1 being a signal sent by the network device based on a request of the UE, sending a second wake-up signal to the network device on the at least one SCell, and receiving the SIB1 sent by the network device on the at least one SCell based on the second wake-up signal; Corresponding to the SSB and the SIB1 being signals sent by the network device based on the request of the UE, a third wake-up signal is sent to the network device on the at least one SCell, and the SSB and the SIB1 sent by the network device on the SCell based on the third wake-up signal are received.

15. The method according to claim 13 or 14, characterized in that The first signal is a system message SIB1 or other system message SIB broadcasted through the PCell.

16. The method according to claim 15, characterized in that The first signal includes first domain information; The value of the first domain information is a seventh parameter value, and the SIB1 is a signal sent by the network device based on the request of the UE; or, The value of the first domain information is the eighth parameter value, and the SIB1 is a signal periodically sent by the network device.

17. The method according to claim 15, characterized in that The first signal includes second domain information, and the SIB1 is a signal sent by the network device based on a request of the UE; or, The first signal does not include the second domain information, and the SIB1 is a signal periodically sent by the network device.

18. The method according to claim 13 or 14, characterized in that The first signal is dedicated signaling sent by the PCell of the UE in a connected state.

19. The method according to claim 18, characterized in that The dedicated signaling is radio resource control RRC signaling.

20. The method according to claim 19, wherein The RRC signaling includes a first information element IE; The value of the first IE is a ninth parameter value, and the SIB1 is a signal sent by the network device based on a request of the UE; or, The value of the first IE is the tenth parameter value, and the SIB1 is a signal periodically sent by the network device.

21. The method according to claim 19, wherein The RRC signaling includes a second information element IE, and the SIB1 is a signal sent by the network device based on the request of the UE; or, The RRC signaling does not include the second IE, and the SIB1 is a signal periodically sent by the network device.

22. A communication method, characterized in that: Applied to user equipment UE, the method includes: receiving a second reference signal sent by a network device, where the second reference signal is used for synchronization with the network device; Corresponding to the second reference signal being a discovery reference signal DRS signal or a low power synchronization signal LP-SS, it is determined that the sent synchronization signal and physical broadcast channel block SSB and / or system message SIB1 are signals sent by the network device based on the request of the UE.

23. The method according to claim 22, characterized in that The method further comprises: Corresponding to the SSB being a signal sent by the network device based on a request of the UE, sending a first wake-up signal to the network device, and receiving the SSB sent by the network device based on the first wake-up signal; Corresponding to the SIB1 being a signal sent by the network device based on a request of the UE, sending a second wake-up signal to the network device, and receiving the SIB1 sent by the network device based on the second wake-up signal; Corresponding to the SSB and the SIB1 being signals sent by the network device based on the request of the UE, a third wake-up signal is sent to the network device, and the SSB and the SIB1 sent by the network device based on the third wake-up signal are received.

24. The method according to claim 22 or 23, characterized in that The DRS includes a primary synchronization signal PSS and a secondary synchronization signal SSS.

25. A communication method, characterized in that: Applied to a network device, the method includes: A synchronization signal and a physical broadcast channel block SSB are sent, wherein the SSB includes first identification information, wherein the first identification information is used to indicate that the system information block SIB1 sent by the network device is a signal periodically sent by the network device or a signal sent by the network device based on a request of a user equipment UE.

26. The method according to claim 25, characterized in that The method further comprises: Corresponding to the SIB1 being a signal periodically sent by the network device, periodically sending the SIB1; Corresponding to the SIB1 being a signal sent by the network device based on a request of the UE, a wake-up signal sent by a user equipment (UE) is received, and the SIB1 is sent to the UE based on the wake-up signal.

27. The method according to claim 25 or 26, characterized in that The first identification information is the first bit in the master information block MIB in the SSB; The first bit value is a first parameter value, and the SIB1 is a signal sent by the network device based on the request of the UE; The first bit value is a second parameter value, and the SIB1 is a signal periodically sent by the network device.

28. The method according to claim 27, characterized in that The first bit is a spare bit.

29. The method according to claim 25 or 26, characterized in that The first identification information is carried in a resource element RE where a physical broadcast channel PBCH in the SSB is located; The RE where the PBCH is located is zero power, and the SIB1 is a signal sent by the network device based on the request of the UE; The RE where the PBCH is located is not zero power, and the SIB1 is a signal periodically sent by the network device.

30. A communication method, characterized in that: Applied to a network device, the method includes: Sending a synchronization signal and a physical broadcast channel block SSB, the first configuration information in the master information block MIB of the SSB, the first configuration information being associated with a first table or a target parameter; wherein the first table and the target parameter are used to indicate that the system information block SIB1 sent by the network device is a signal periodically sent by the network device or a signal sent by the network device based on a request of a user equipment UE.

31. The method according to claim 30, wherein Corresponding to the SIB1 being a signal periodically sent by the network device, periodically sending the SIB1; Corresponding to the SIB1 being a signal sent by the network device based on a request of the UE, a wake-up signal sent by a user equipment UE is received, and the SIB1 is sent based on the wake-up signal.

32. The method according to claim 30 or 31, characterized in that The first configuration information is SIB1 configuration information, and the SIB1 configuration information is used to configure a Type0-PDCCH common search space CSS for parsing SIB1, and is further used to configure a control resource set CORESET of the Type0-PDCCH CSS; The first table is a table corresponding to the Type0-PDCCH CSS, and the upper 4 bits of the SIB1 configuration information correspond to the index of the data row in the first table; or, The first table is a table corresponding to the CORESET, and the lower 4 bits of the SIB1 configuration information correspond to the index of the data row in the first table.

33. The method according to any one of claims 30 to 32, characterized in that The first table corresponds to a UE supporting network energy saving NES, and the SIB1 is a signal sent by the network device based on a request of the UE; or, The first table corresponds to a UE that does not support network energy saving NES, and the SIB1 is a signal periodically sent by the network device.

34. The method according to any one of claims 30 to 32, characterized in that The first table contains a first entry; and The value of the first table entry in the data row indexed based on the SIB1 configuration information in the first table is a third parameter value, where the SIB1 is a signal sent by the network device based on a request from the UE; or, The value of the first table item in the data row indexed based on the SIB1 configuration information in the first table is a fourth parameter value, and the SIB1 is a signal periodically sent by the network device.

35. The method according to any one of claims 30 to 32, characterized in that The data rows indexed based on the SIB1 configuration information in the first table are reserved rows, where the SIB1 is a signal sent by the network device based on a request from the UE; or, The data row in the first table that is indexed based on the SIB1 configuration information is not a reserved row, and the SIB1 is a signal periodically sent by the network device.

36. The method according to claim 30 or 31, characterized in that The first configuration information is a subcarrier offset in the MIB of the SSB, and the subcarrier offset is used to calculate a k_SSB parameter, and the target parameter is the k_SSB parameter; The k_SSB parameter value is a fifth parameter value, and the SIB1 is a signal sent by the network device based on the request of the UE; or, The k_SSB parameter value is the sixth parameter value, and the SIB1 is a signal periodically sent by the network device.

37. A communication method, characterized in that: Applied to a network device, the method includes: Sending a first signal in a primary cell PCell where a primary carrier of the user equipment UE is located, The first information is used to indicate the synchronization signal and physical broadcast channel block SSB and / or system information SIB1 sent on at least one secondary cell SCell where the secondary carrier of the UE is located, which is a signal periodically sent by the network device or a signal sent by the network device based on the request of the UE.

38. The method according to claim 37, wherein Corresponding to the SSB being a signal sent by the network device based on a request of the UE, receiving a first wake-up signal sent by the UE on the at least one SCell, and sending the SSB on the SCell based on the first wake-up signal; Corresponding to the SIB1 being a signal sent by the network device based on a request of the UE, receiving, on the at least one SCell, a second wake-up signal sent by the UE, and sending the SIB1 on the at least one SCell based on the second wake-up signal; Corresponding to the fact that both the SSB and the SIB1 are signals sent by the network device based on the request of the UE, a third wake-up signal sent by the UE is received on the at least one SCell, and the SSB and the SIB1 are sent on the at least one SCell based on the third wake-up signal.

39. The method according to claim 37 or 38, characterized in that The first signal is a system message SIB1 or other system message SIB broadcasted through the PCell.

40. The method according to claim 39, wherein The first signal includes first domain information; The value of the first domain information is a seventh parameter value, and the SIB1 is a signal sent by the network device based on the request of the UE; or, The value of the first domain information is the eighth parameter value, and the SIB1 is a signal periodically sent by the network device.

41. The method according to claim 40, wherein The SIB includes second domain information, and the SIB1 is a signal sent by the network device based on the request of the UE; or, The SIB does not include the second domain information, and the SIB1 is a signal periodically sent by the network device.

42. The method according to claim 37 or 38, characterized in that The first signal is dedicated signaling sent by the PCell of the UE in a connected state.

43. The method according to claim 42, characterized in that The dedicated signaling is radio resource control RRC signaling.

44. The method according to claim 43, wherein The RRC signaling includes a first information element IE; The value of the first IE is a ninth parameter value, and the SIB1 is a signal sent by the network device based on a request of the UE; or, The value of the first IE is the tenth parameter value, and the SIB1 is a signal periodically sent by the network device.

45. The method according to claim 43, wherein The RRC signaling includes a second information element IE, and the SIB1 is a signal sent by the network device based on the request of the UE; or, The RRC signaling does not include the second IE, and the SIB1 is a signal periodically sent by the network device.

46. A communication method, characterized in that: Applied to a network device, the method includes: A second reference signal is sent, and the second reference signal is used for synchronization of the user equipment with the network device; wherein the second reference signal is a discovery reference signal DRS signal or a low power synchronization signal LP-SS, and the synchronization signal and physical broadcast channel block SSB and / or system message SIB1 sent by the network device are signals sent by the network device based on the request of the user equipment UE.

47. The method according to claim 46, wherein The method further comprises: Corresponding to the SSB being a signal sent by the network device based on a request of the UE, receiving a first wake-up signal sent by the UE, and sending the SSB based on the first wake-up signal; Corresponding to the SIB1 being a signal sent by the network device based on a request of the UE, sending a second wake-up signal to the network device, and receiving the SIB1 sent by the network device based on the second wake-up signal; Corresponding to the SSB and the SIB1 being signals sent by the network device based on the request of the UE, a third wake-up signal is sent to the network device, and the SSB and the SIB1 sent by the network device based on the third wake-up signal are received.

48. The method according to claim 46 or 47, characterized in that The DRS includes a primary synchronization signal PSS and a secondary synchronization signal SSS.

49. A user equipment UE, characterized in that include: A transceiver, configured to perform the receiving operation and the sending operation in the method according to any one of claims 1 to 24; A processor, configured to perform other operations except the receiving operation and the sending operation in the method according to any one of claims 1 to 24.

50. A network device, characterized in that: include: A transceiver, configured to perform the receiving operation and the sending operation in the method according to any one of claims 25 to 48; A processor, configured to perform other operations except the receiving operation and the sending operation in the method described in any one of claims 25 to 48.

51. A communication system, characterized in that The method comprises a user equipment UE and a network element, wherein the UE is used to execute the method according to any one of claims 1 to 24, and the network element is used to execute the method according to any one of claims 25 to 48.

52. A computer storage medium for storing a computer program, wherein when the computer program is executed, it is used to implement the communication method according to any one of claims 1 to 48.

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