Communication method and device

Abstract

The invention discloses a communication method and device, and relates to the technical field of communication. The method comprises: a first communication device (such as a terminal device) can obtain indication information indicating a first region set for sending first system information, and / or a second region set in which the first system information does not occur, so that the first communication device can determine which regions will send the first system information, in this way, the first communication device can not monitor the first system information in the areas where the first system information is not sent, so that the invalid monitoring times of the first communication device can be reduced, and power consumption is saved.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a communication method and device. Background Art

[0002] System information (SI) includes the master information block (MIB) and several system information blocks (SIB). SIB is divided into minimum system information (MSI) and other system information (OSI). MSI includes SIB1, which includes OSI scheduling information. After receiving SIB1, the terminal device receives OSI according to the OSI scheduling information in SIB1. The terminal device keeps trying to receive OSI, which will undoubtedly consume a lot of power consumption of the terminal device. Summary of the invention

[0003] The embodiments of the present application provide a communication method and apparatus for saving power consumption of a device.

[0004] In a first aspect, an embodiment of the present application provides a communication method. The method may be performed by a first communication device. The first communication device may be, for example, a terminal device, a software module in a terminal device, or a hardware module (such as a chip). The method includes: obtaining (or receiving) indication information, the indication information including information of a first area set and / or information of a second area set, the first area set including an area where the first system information is sent, and the second area set including an area where the first system information is not sent. Optionally, the first communication device also determines the first area set and / or the second area set. The first communication device determines the first area set and / or the second area set, which may also be described alternatively as: determining to send the first system information on the first area set and / or determining not to send the first system information on the second area set, or determining to listen to (or receive) the first system information on the first area set and / or determining not to listen to (or receive) the first system information on the second area set.

[0005] It should be understood that both the first area set and the second area set may belong to a cell (such as the first cell) of the second communication device. Of course, the first cell may include other areas in addition to the area used to send the first system information and the area where the first system information is not sent, and there is no limitation on this. The area involved in the embodiment of the present application may be a physical area divided within the signal coverage range of the second communication device, or it may be an area corresponding to a synchronization signal. For a certain cell, the area used to send the first system information may change over time, or it may be fixed, and there is no limitation on this. The first system information may be, for example, an OSI other than SIB1, such as SIB2 or SIB19.

[0006] In an embodiment of the present application, the first communication device can clearly specify which areas are to send the first system information, and / or which areas are not to send the first system information. Therefore, the first communication device does not need to monitor the first system information in the areas where the first system information is not sent, thereby reducing the number of invalid monitoring times of the first communication device, which is beneficial to reducing the power consumption of the first communication device.

[0007] In a possible implementation, the method further includes: receiving the first system information in the first area set; and / or not receiving the first system information in the second area set, or ignoring scheduling information of the first system information in the second area set.

[0008] In the above implementation, the first communication device can monitor the first system information in a targeted manner based on the indication of the indication information, thereby reducing the number of invalid monitoring times and saving energy consumption. In addition, for the network side (such as the second communication device), it is not necessary to send the first system information in all areas of a cell, which improves the flexibility of sending the first system information and reduces the transmission burden of the network.

[0009] In one possible implementation, before the first area set receives the first system information, the method also includes: determining that a first condition is satisfied, the first condition including: the first system information is not obtained in the first cell, and the first area set and the second area set both belong to the first cell; determining that the system information changes; the first communication device does not have a valid version of the first system information; the first communication device needs the first system information; or the first communication device enters an area in the first area set.

[0010] In the above implementation, the first communication device can receive the first system information under the first condition, which can reduce the number of times the first system information is received, reduce the probability of repeated reception of the first system information, and also help save power consumption of the first communication device.

[0011] In a possible implementation manner, the first area set and the second area set correspond to the same SIB1 and / or SIB1bis. Of course, the SIB1 corresponding to the first area set and the SIB1 corresponding to the second area set may also be different.

[0012] In a possible implementation manner, the indication information is carried in one of the following information: a first SIB1; or a first SIB1bis; or a first MIB; or a first DCI.

[0013] In the above implementation, the indication information can be carried by existing information, which can reduce the number of times the information is transmitted in the network, and is beneficial to reducing the transmission resource overhead of the first communication device and the second communication device.

[0014] In a possible implementation, the first SIB1, the first SIB1bis, the first MIB or the first DCI is associated with the first cell, and the first area set and the second area set both belong to the first cell. It can be understood that the indication information can be carried by the first SIB1, the first SIB1bis, the first MIB or the first DCI corresponding to the first cell.

[0015] In a second aspect, an embodiment of the present application provides a communication method. The method may be performed by a first communication device. The first communication device may be, for example, a terminal device, a software module or a hardware module (such as a chip) in a terminal device, etc. The method includes: obtaining (or receiving) indication information, the indication information including information of a first synchronization signal block SSB set and / or information of a second SSB set, the first SSB set including SSBs associated with the first system information, and the second SSB set including SSBs not associated with the first system information. Optionally, the first communication device also determines the first SSB set, and / or determines the second SSB set.

[0016] It should be understood that the SSB can be one or more of the following: synchronization signal (SS), synchronization signal block (SSB), or synchronization signal and PBCH block (SS / PBCH block / SSB). The SSB involved in the embodiments of the present application can also be replaced by a synchronization signal, a synchronization signal block (SSB), or a synchronization signal and PBCH block (SS / PBCH block / SSB), etc., without limitation. The SSB associated with the first system information can be understood as: the PDCCH monitoring opportunity (or listening opportunity, or listening opportunity) corresponding to the SSB is used to send the first system information. The SSB not associated with the first system information can be understood as the PDCCH monitoring opportunity corresponding to the SSB is not used to send the first system information.

[0017] In an embodiment of the present application, the first communication device can clarify which SSBs will send the first system information and which SSBs will not send the first system information based on the indication information. The first communication device may not monitor the first system information on the SSBs that do not send the first system information, thereby reducing invalid monitoring of the first communication device and saving power consumption.

[0018] In a possible implementation, the method further includes: receiving the first system information in the first SSB set; and / or, not receiving the first system information in the second SSB set, or ignoring scheduling information of the first system information in the second SSB set.

[0019] In one possible implementation, before the first SSB set receives the first system information, the method also includes: determining that a first condition is satisfied, the first condition including: the first system information is not obtained in the first cell, and the first SSB set and the second SSB set both belong to the first cell; determining that the system information changes; the first communication device does not have a valid version of the first system information; the first communication device needs the first system information; or the first communication device enters the area corresponding to the first SSB set.

[0020] In a possible implementation manner, the first SSB set and the second SSB set correspond to the same SIB1 and / or SIB1bis. Of course, the SIB1 corresponding to the first SSB set and the SIB1 corresponding to the second SSB set may also be different.

[0021] In a possible implementation manner, the indication information is carried in one of the following information: a first SIB1; or a first SIB1bis; or a first MIB; or a first DCI.

[0022] In a possible implementation, the first SIB1, the first SIB1bis, the first MIB or the first DCI is associated with the first cell, and the first SSB set and the second SSB set both belong to the first cell. It can be understood that the indication information can be carried by the first SIB1, the first SIB1bis, the first MIB or the first DCI corresponding to the first cell.

[0023] In a third aspect, an embodiment of the present application provides a communication method. The method may be performed by a first communication device. The first communication device may be, for example, a terminal device, a software module or a hardware module (such as a chip) in the terminal device. The method includes: obtaining first data in a first area, the first data including a first SIB1 or a first SIB1bis; obtaining second data in a second area, the second data including a second SIB1 or a second SIB1bis; if the first area and the second area both belong to the first area set or both belong to the second area set, determining that the second data is retransmitted data; if one of the first area and the second area belongs to the first area set, and the other area of ​​the first area and the second area belongs to the second area set, determining that the second data is new data; wherein the first area set includes an area that sends the first system information, and the second area set includes an area that does not send the first system information. Wherein, if the first data includes the first SIB1, then the second data includes the second SIB1; or, the first data includes the first SIB1bis, and the second data includes the second SIB1bis.

[0024] It should be understood that both the first area set and the second area set may belong to a cell (such as the first cell) of the second communication device. Of course, the first cell may include other areas in addition to the area for sending the first system information and the area where the first system information is not sent, and there is no limitation on this. Correspondingly, the first area and the second area also belong to a cell. The area involved in the embodiment of the present application may be a physical area divided within the signal coverage range of the second communication device, or may be an area corresponding to a synchronization signal.

[0025] In an embodiment of the present application, the first communication device can determine whether the second data is newly transmitted or retransmitted based on whether the area corresponding to the first data and the area corresponding to the second data belong to the same area set. In this way, it can accurately determine whether the second data is newly transmitted or retransmitted, which can improve the success rate of the second data decoded by the first communication device.

[0026] In a possible implementation manner, the first area set and the second area set correspond to different SIB1s or SIB1bis.

[0027] In the above implementation, the second communication device can send different SIB1 or SIB1bis in different areas of a cell, which improves the flexibility of sending SIB1 or SIB1bis. In addition, since the content of SIB1 or SIB1bis in different areas is different, the first communication device can determine whether to monitor the first system information based on the content of SIB1 or SIB1bis, which is conducive to saving power consumption of the first communication device.

[0028] In a possible implementation manner, the method further includes: not receiving the first system information in the first area; and / or receiving the first system information in the second area. In this case, the first area belongs to the second area set, and the second area belongs to the first area set.

[0029] In the above implementation, the first communication device may determine whether to monitor the first system information based on the area set to which the first area or the second area belongs, thereby reducing the situation of invalid monitoring of the first system information.

[0030] In a possible implementation, receiving the first system information in the second area includes: if it is determined that the first system information changes according to the first SIB1 or the first SIB1bis, then determining the scheduling information for receiving the first system information according to the second data, and receiving the first system information according to the scheduling information of the first system information; or, if the first information is not received in the first area and the first information is received in the second area, then receiving the first system information in the second area, and the first information indicates sending the first system information.

[0031] In the above implementation, the first communication device can selectively receive the first system information according to specific circumstances, thereby reducing the situation of repeated reception of the first system information and reducing the processing load of the first communication device.

[0032] In a possible implementation manner, the method further includes: acquiring indication information, where the indication information includes information about the first area set and / or information about the second area set.

[0033] In the above implementation, a method is provided for a first communication device to specify the first area set and / or the second area set. In addition, the first communication device may also be pre-configured or pre-defined with the first area set and / or the second area set.

[0034] In a possible implementation manner, the indication information is carried in one of the following information: a third SIB1; a first SIB1bis; or, or, a first MIB; or, a first DCI. The third SIB may be different from the first SIB1 or the same as the first SIB1. The third SIB1bis may be different from the first SIB1bis or the same as the first SIB1bis.

[0035] In a possible implementation manner, the third SIB1, the third SIB1bis, the first MIB or the first DCI is associated with the first cell, and the first area set and the second area set both belong to the first cell.

[0036] In a fourth aspect, an embodiment of the present application provides a communication method. The method may be performed by a first communication device. The first communication device may be, for example, a terminal device, a software module in a terminal device, or a hardware module (such as a chip). The method includes: for a first SSB, obtaining first data, the first data includes a first SIB1 (or SIB1bis); for a second SSB, obtaining second data, the second data includes a second SIB1 (or SIB1bis); if the first SSB and the second SSB are both associated with the first SSB set or are both associated with the second SSB set, determining that the second data is retransmitted data; if one of the first SSB and the second SSB belongs to the first SSB set, and the other of the first SSB and the second SSB belongs to the second SSB set, determining that the second data is new transmission data; wherein the first SSB set includes SSBs associated with the first system information, and the second SSB set includes SSBs not associated with the first system information.

[0037] It should be understood that, for the first SSB, obtaining the first data can be understood as: sending / receiving the first data at the PDCCH monitoring opportunity corresponding to the first SSB. For the second SSB, obtaining the second data can be understood as: sending / receiving the second data at the PDCCH monitoring opportunity corresponding to the second SSB.

[0038] In one possible implementation, the first SSB set and the second SSB set correspond to different SIB1s or SIB1bis.

[0039] In a possible implementation, the method further includes: not receiving the first system information for the first SSB; and / or receiving the first system information for the second SSB. In this case, the first SSB belongs to the second SSB set, and the second SSB belongs to the first SSB set.

[0040] In one possible implementation, receiving the first system information for the second SSB includes: if it is determined that the first system information has changed according to the first SIB1 or the first SIB1bis, determining the scheduling information for receiving the first system information according to the second data, and receiving the first system information according to the scheduling information of the first system information; or, if the first information is not received for the first SSB and the first information is received for the second SSB, receiving the first system information for the second SSB, and the first information indicates sending the first system information.

[0041] In a possible implementation, the method further includes: obtaining indication information, the indication information including information of the first SSB set and / or information of the second SSB set.

[0042] In a possible implementation manner, the indication information is carried in one of the following information: a third SIB1; a first SIB1bis; or, or, a first MIB; or, a first DCI. The third SIB may be different from the first SIB1 or the same as the first SIB1. The third SIB1bis may be different from the first SIB1bis or the same as the first SIB1bis.

[0043] In one possible implementation, the third SIB1, the third SIB1bis, the first MIB or the first DCI is associated with the first cell, and the first SSB set and the second SSB set both correspond to the first cell.

[0044] In a fifth aspect, an embodiment of the present application provides a communication method. The method may be performed by a second communication device. The second communication device may be, for example, a network device, a software module or a hardware module (such as a chip) in a network device, or a component or device that implements part or all of the functions of a network device, such as a satellite, a base station, or a satellite base station. The method includes: determining a first area set to send first system information, and / or determining a second area set not to send the first system information; sending indication information, the indication information including information of the first area set and / or information of the second area set.

[0045] In a possible implementation manner, the first area set and the second area set belong to a first cell.

[0046] In a possible implementation manner, the method further includes: sending first system information in the first area set.

[0047] In a possible implementation manner, before the first area set sends the first system information, the method further includes: sending second information, where the second information indicates a change in the system information.

[0048] In a possible implementation manner, the first area set and the second area set correspond to the same SIB1 or SIB1bis.

[0049] In a possible implementation manner, the indication information is carried in one of the following information: a first SIB1; or a first SIB1bis; or a first MIB; or a first DCI.

[0050] In a possible implementation manner, the first SIB1, the first SIB1bis, the first MIB or the first DCI is associated with the first cell, and the first area set and the second area set both belong to the first cell.

[0051] In a sixth aspect, an embodiment of the present application provides a communication method. The method may be performed by a second communication device. The second communication device may be, for example, a network device, a software module or a hardware module (such as a chip) in a network device, or a component or device that implements part or all of the functions of a network device, such as a satellite, a base station, or a satellite base station. The method includes: determining a first synchronization signal SSB set, and / or determining a second SSB set, the first SSB set including SSBs associated with the first system information, and the second SSB set including SSBs not associated with the first system information; sending indication information, the indication information including information of the first SSB set and / or information of the second SSB set.

[0052] In a possible implementation, the method further includes: sending the first system information in a first SSB set.

[0053] In one possible implementation, the first SSB set and the second SSB set correspond to the same SIB1 and / or SIB1bis.

[0054] In a seventh aspect, an embodiment of the present application provides a communication method. The method may be performed by a second communication device. The second communication device may be, for example, a network device, a software module or a hardware module (such as a chip) in a network device, or a component or device that implements part or all of the functions of a network device, and the network device may be, for example, a satellite, a base station, or a satellite base station. The method includes: in a first area, sending first data, the first data includes a first system information block 1SIB1 or a first SIB1bis; in a second area, sending second data, the second data includes a second SIB1 or a second SIB1bis, wherein the first SIB1 and the second SIB2 are different, or the first SIB1bis is different from the second SIB1bis. Wherein, if the first data includes the first SIB1, then the second data includes the second SIB1; or, the first data includes the first SIB1bis, and the second data includes the second SIB1bis.

[0055] In a possible implementation manner, the first area and the second area belong to a first cell.

[0056] In a possible implementation, if one of the first area and the second area belongs to a first area set, and the other area of ​​the first area and the second area belongs to a second area set, the second data is determined to be newly transmitted; wherein the first area set includes areas that send first system information, and the second area set includes areas that do not send first system information.

[0057] In a possible implementation manner, the method further includes: sending the first system information in the second area.

[0058] In a possible implementation manner, before sending the first system information in the second area, the method further includes: sending second information in the first area, where the second information indicates a change in the system information.

[0059] In a possible implementation manner, the method further includes: sending indication information, where the indication information includes information of the first area set and / or information of the second area set.

[0060] In a possible implementation manner, the first area set and the second area set correspond to different SIB1s or SIB1bis.

[0061] In a possible implementation manner, the indication information is carried in one of the following information: a third SIB1; or a third SIB1bis; or a first MIB; or a first DCI. The third SIB may be different from or the same as the first SIB1. The third SIB1bis may be different from or the same as the first SIB1bis.

[0062] In a possible implementation manner, the third SIB1, the third SIB1bis, the first MIB or the first DCI is associated with the first cell, and the first area set and the second area set both belong to the first cell.

[0063] In an eighth aspect, an embodiment of the present application provides a communication method. The method may be performed by a second communication device. The second communication device may be, for example, a network device, a software module or a hardware module (such as a chip) in a network device, or a component or device that implements part or all of the functions of a network device, and the network device may be, for example, a satellite, a base station, or a satellite base station. The method includes: for a first SSB, sending first data, the first data includes a first SIB1 (or SIB1bis); for a second SSB, sending second data, the second data includes a second SIB1 (or SIB1bis); wherein the first SIB1 and the second SIB2 are different, or the first SIB1bis and the second SIB1bis are different. Wherein, if the first data includes the first SIB1, then the second data includes the second SIB1; or, the first data includes the first SIB1bis, and the second data includes the second SIB1bis.

[0064] In one possible implementation, the first SSB set and the second SSB set correspond to different SIB1s or SIB1bis.

[0065] In a possible implementation, the method further includes: not sending the first system information for the first SSB; and / or sending the first system information for the second SSB. In this case, the first SSB belongs to the second SSB set, and the second SSB belongs to the first SSB set.

[0066] In a possible implementation, the method further includes: obtaining indication information, the indication information including information of the first SSB set and / or information of the second SSB set.

[0067] In a possible implementation manner, the indication information is carried in one of the following information: a third SIB1; a first SIB1bis; or, or, a first MIB; or, a first DCI. The third SIB may be different from the first SIB1 or the same as the first SIB1. The third SIB1bis may be different from the first SIB1bis or the same as the first SIB1bis.

[0068] In one possible implementation, the third SIB1, the third SIB1bis, the first MIB or the first DCI is associated with the first cell, and the first SSB set and the second SSB set both correspond to the first cell.

[0069] In combination with the first aspect or the third aspect or the fifth aspect or the seventh aspect, in a possible implementation, the indication information includes N bits, the N bits include a first bit, the first bit is used to indicate that the first area sends the first system information or does not send the first system information, the first area belongs to the first area set or the second area set, and N is a positive integer. In this implementation, optionally, the N bits are used to carry (or represent, or describe) information of the first area set and / or information of the second area set. Optionally, different bits in some or all of the N bits correspond to different areas. Furthermore, one bit in some or all of the bits is used to indicate that one or more areas send the first system information, or do not send the first system information.

[0070] In the above implementation, one bit may be used to indicate whether a certain area sends the first system information or does not send the first system information. The indication method is relatively simple and is also convenient for the first communication device to decode.

[0071] In combination with the first aspect or the third aspect or the fifth aspect or the seventh aspect, in a possible implementation, the indication information includes at least one of the following: first index information, the first index information indicating the starting index of an area in the first area set and / or the ending index of an area; second index information, the second index information indicating the starting index of an area in the second area set and / or the ending index of an area; first quantity information, the first quantity information indicating the number of areas in the first area set; or, second quantity information, the second quantity information indicating the number of areas in the second area set. It should be understood that the first index information and / or the first quantity information can be regarded as several examples of the first area set information, and the second index information and / or the second quantity information can be regarded as several examples of the second area set information.

[0072] In the above implementation, there is no need to indicate each area in the first area set and / or the second area set separately, which is beneficial to reducing the bit overhead of the indication information.

[0073] In combination with the second aspect or the fourth aspect or the sixth aspect or the eighth aspect, in a possible implementation, the indication information includes N bits, the N bits include a first bit, the first bit is used to indicate whether the first system information is sent or not for a first SSB, the first SSB belongs to the first SSB set or the second SSB set, and N is a positive integer. In this implementation, optionally, N bits are used to carry (or represent, or describe) information of the first SSB set and / or information of the second SSB set, and different bits in some or all of the N bits correspond to different SSBs. Furthermore, one bit in some or all of the bits is used to indicate whether the first system information is sent or not for one or more SSBs.

[0074] In combination with the second aspect or the fourth aspect or the sixth aspect or the eighth aspect, in a possible implementation, the indication information includes at least one of the following: first index information, the first index information indicating the starting index of the SSB in the first SSB set and / or the ending index of the SSB; second index information, the second index information indicating the starting index of the SSB in the second SSB set and / or the ending index of the SSB; first quantity information, the first quantity information indicating the number of SSBs in the first SSB set; or, second quantity information, the second quantity information indicating the number of SSBs in the second SSB set. It should be understood that the first index information and / or the first quantity information can be regarded as several examples of the first SSB set information, and the second index information and / or the second quantity information can be regarded as several examples of the second SSB set information.

[0075] In a ninth aspect, an embodiment of the present application provides a communication device, which may be the first communication device in the first aspect above, or a software module or a hardware module (such as a chip) configured in the first communication device. The communication device includes corresponding means (means) or modules for executing the first aspect or any optional implementation. For example, the communication device includes a processing module (sometimes also referred to as a processing unit), and a transceiver module (sometimes also referred to as a transceiver unit).

[0076] For example, a transceiver module is used to obtain (or receive) indication information, the indication information includes information of a first area set and / or information of a second area set, the first area set includes areas where first system information is sent, and the second area set includes areas where first system information is not sent; a processing module is used to determine the first area set and / or the second area set.

[0077] Optionally, the communication device may also implement any possible implementation of the first aspect above, which will not be listed one by one here.

[0078] In a tenth aspect, an embodiment of the present application provides a communication device, which may be the first communication device in the second aspect above, or a software module or a hardware module (such as a chip) configured in the first communication device. The communication device includes corresponding means (means) or modules for executing the second aspect above or any optional implementation. For example, the communication device includes a processing module (sometimes also referred to as a processing unit), and a transceiver module (sometimes also referred to as a transceiver unit).

[0079] For example, a transceiver module is used to obtain (or receive) indication information, the indication information includes information of a first synchronization signal SSB set and / or information of a second SSB set, the first SSB set includes SSBs associated with the first system information, and the second SSB set includes SSBs not associated with the first system information; a processing module is used for the first communication device to also determine the first SSB set, and / or determine the second SSB set.

[0080] Optionally, the communication device may also implement any possible implementation of the second aspect above, which will not be listed one by one here.

[0081] In an eleventh aspect, an embodiment of the present application provides a communication device, which may be the first communication device in the third aspect above, or a software module or a hardware module (such as a chip) configured in the first communication device. The communication device includes corresponding means (means) or modules for executing the third aspect above or any optional implementation. For example, the communication device includes a processing module (sometimes also referred to as a processing unit), and a transceiver module (sometimes also referred to as a transceiver unit).

[0082] For example, a transceiver module obtains first data in a first area, the first data includes a first SIB1 or a first SIB1bis, and obtains second data in a second area, the second data includes a second SIB1 or a second SIB1bis; a processing module is used to determine that the second data is retransmitted data if the first area and the second area both belong to the first area set or both belong to the second area set; if one of the first area and the second area belongs to the first area set and the other area of ​​the first area and the second area belongs to the second area set, determine that the second data is new transmission data.

[0083] Optionally, the communication device may also implement any possible implementation of the third aspect above, which will not be listed one by one here.

[0084] In a twelfth aspect, an embodiment of the present application provides a communication device, which may be the second communication device in the fourth aspect, a software module or a hardware module (such as a chip) configured in the second communication device, or a device having the functions of the second communication device in the fourth aspect. The communication device includes corresponding means or modules for executing the fourth aspect or any optional implementation. For example, the communication device includes a processing module (sometimes also referred to as a processing unit), and a transceiver module (sometimes also referred to as a transceiver unit).

[0085] For example, the transceiver module is used to obtain first data for the first SSB, the first data including the first SIB1 (or SIB1bis); and to obtain second data for the second SSB, the second data including the second SIB1 (or SIB1bis); the processing module is used to determine that the second data is retransmitted data if the first SSB and the second SSB are both associated with the first SSB set or are both associated with the second SSB set; and to determine that the second data is new transmission data if one of the first SSB and the second SSB belongs to the first SSB set and the other of the first SSB and the second SSB belongs to the second SSB set.

[0086] Optionally, the communication device may also implement any possible implementation of the fourth aspect above, which will not be listed one by one here.

[0087] In a thirteenth aspect, an embodiment of the present application provides a communication device, which may be the second communication device in the fifth aspect, a software module or a hardware module (such as a chip) configured in the second communication device, or a device having the functions of the second communication device in the fifth aspect. The communication device includes corresponding means or modules for executing the fifth aspect or any optional implementation. For example, the communication device includes a processing module (sometimes also referred to as a processing unit), and a transceiver module (sometimes also referred to as a transceiver unit).

[0088] For example, a processing module is used to determine a first area set to send first system information, and / or determine a second area set not to send the first system information; a transceiver module is used to send indication information, the indication information includes information of the first area set and / or information of the second area set.

[0089] Optionally, the communication device may also implement any possible implementation of the fifth aspect above, which will not be listed one by one here.

[0090] In a fourteenth aspect, an embodiment of the present application provides a communication device, which may be the second communication device in the sixth aspect, a software module or a hardware module (such as a chip) configured in the second communication device, or a device having the functions of the second communication device in the sixth aspect. The communication device includes corresponding means or modules for executing the sixth aspect or any optional implementation. For example, the communication device includes a processing module (sometimes also referred to as a processing unit), and a transceiver module (sometimes also referred to as a transceiver unit).

[0091] For example, a processing module is used to determine a first synchronization signal SSB set and / or determine a second SSB set, wherein the first SSB set includes SSBs associated with the first system information and the second SSB set includes SSBs not associated with the first system information; a transceiver module is used to send indication information, wherein the indication information includes information of the first SSB set and / or information of the second SSB set.

[0092] Optionally, the communication device may also implement any possible implementation of the sixth aspect above, which will not be listed one by one here.

[0093] In a fifteenth aspect, an embodiment of the present application provides a communication device, which may be the second communication device in the seventh aspect, a software module or a hardware module (such as a chip) configured in the second communication device, or a device having the functions of the second communication device in the seventh aspect. The communication device includes corresponding means or modules for executing the seventh aspect or any optional implementation. For example, the communication device includes a processing module (sometimes also referred to as a processing unit), and a transceiver module (sometimes also referred to as a transceiver unit).

[0094] For example, the transceiver module is used to send first data in a first area under the processing of the processing module, the first data includes SIB1 or first SIB1bis, and send second data in a second area, the second data includes second SIB1 or second SIB1bis, wherein the first SIB1 and the second SIB2 are different, or the first SIB1bis is different from the second SIB1bis.

[0095] Optionally, the communication device may also implement any possible implementation of the seventh aspect above, which will not be listed one by one here.

[0096] In a sixteenth aspect, an embodiment of the present application provides a communication device, which may be the second communication device in the eighth aspect, a software module or a hardware module (such as a chip) configured in the second communication device, or a device having the functions of the second communication device in the eighth aspect. The communication device includes corresponding means or modules for executing the eighth aspect or any optional implementation. For example, the communication device includes a processing module (sometimes also referred to as a processing unit), and a transceiver module (sometimes also referred to as a transceiver unit).

[0097] The transceiver module is used for sending first data including first SIB1 (or SIB1bis) for the first SSB under the control of the processing module, and sending second data including second SIB1 (or SIB1bis) for the second SSB; wherein the first SIB1 and the second SIB2 are different, or the first SIB1bis and the second SIB1bis are different. Wherein, if the first data includes the first SIB1, then the second data includes the second SIB1; or, the first data includes the first SIB1bis, and the second data includes the second SIB1bis.

[0098] Optionally, the communication device may also implement any possible implementation of the eighth aspect described above, which are not listed one by one here.

[0099] In the seventeenth aspect, an embodiment of the present application provides a communication device. The communication device includes a processor and an interface circuit, wherein the interface circuit is used to receive a signal from another communication device other than the communication device and transmit it to the processor or send a signal from the processor to another communication device other than the communication device, and the processor is used to implement a communication method as described in any one of the first to eighth aspects and possible implementation methods through a logic circuit or executing code instructions.

[0100] In the specific implementation process, the communication device may be a chip, and the processor may be a transistor, a gate circuit, a trigger, and various logic circuits, etc. The embodiment of the present application does not limit the specific implementation method of the processor.

[0101] In one implementation, the communication device may be a wireless communication device, that is, a computer device supporting wireless communication functions. Specifically, the wireless communication device may be a terminal such as a smart phone, or a wireless access network device such as a base station.

[0102] In another implementation, the communication device may be a part of a wireless communication device, such as an integrated circuit product such as a system chip or a communication chip. The system chip may also be referred to as a system on chip (SoC), or simply as an SoC chip. The communication chip may include a baseband processing chip and a radio frequency processing chip. The baseband processing chip is sometimes also referred to as a modem or a baseband chip. The radio frequency processing chip is sometimes also referred to as a radio frequency transceiver or a radio frequency chip. In a physical implementation, some or all of the chips in the communication chip may be integrated inside the SoC chip. For example, the baseband processing chip is integrated in the SoC chip, and the radio frequency processing chip is not integrated with the SoC chip. The interface circuit may be a radio frequency processing chip in a wireless communication device, and the processor may be a baseband processing chip in a wireless communication device. The interface circuit may be an input / output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit on the chip or the chip system. The processor may also be embodied as a processing circuit or a logic circuit.

[0103] In aspect 18, an embodiment of the present application provides a communication device. The communication device includes: a processor, the processor is used to execute the communication method described in any one of the above-mentioned aspects 1 to 8 and possible implementations. Optionally, the communication device also includes a memory; the memory is used to store one or more computer programs, the one or more computer programs include computer execution instructions, and when the communication device is running, the processor executes the one or more computer programs stored in the memory, so that the communication device executes the communication method described in any one of the above-mentioned aspects 1 to 8 and possible implementations.

[0104] In a nineteenth aspect, an embodiment of the present application provides a chip system. The chip system includes: a processor and an interface. The processor is used to call and run instructions from the interface, and when the processor executes the instruction, the communication method described in any one of the first to eighth aspects and possible implementation methods is implemented.

[0105] In the twentieth aspect, an embodiment of the present application provides a computer-readable storage medium, which is used to store computer programs or instructions. When the computer-readable storage medium is executed, it implements the communication method described in any one of the above-mentioned first to eighth aspects and possible implementation methods.

[0106] In the twenty-first aspect, an embodiment of the present application provides a computer program product comprising instructions, which, when executed on a computer, implements the communication method described in any one of the above-mentioned first to eighth aspects and possible implementation methods.

[0107] Regarding the beneficial effects of any technical solution in the above-mentioned second to twenty-first aspects, reference can be made to the beneficial effects discussion of the corresponding technical solution in the first, second or third aspects, and the repeated parts will not be listed here. BRIEF DESCRIPTION OF THE DRAWINGS

[0108] Figure 1 A schematic diagram of channel mapping related to system information;

[0109] Figure 2 A schematic diagram of scheduling SIB1 and SI message based on DCI;

[0110] Figure 3 A schematic diagram of transmission between layers in downlink transmission;

[0111] Figure 4 It is a schematic diagram of the structure of a MAC PDU;

[0112] Figure 5 A schematic diagram of the architecture of a communication system applicable to an embodiment of the present application;

[0113] Figure 6 A schematic diagram of a network architecture applicable to an embodiment of the present application;

[0114] Figure 7 A schematic diagram of another network architecture applicable to an embodiment of the present application;

[0115] Figure 8 A schematic diagram of a satellite system in a transparent transmission mode applicable to an embodiment of the present application;

[0116] Fig. 9 A schematic diagram of a satellite system in another transparent transmission mode applicable to an embodiment of the present application;

[0117] Fig.10 A schematic diagram of a satellite system in a regeneration mode applicable to an embodiment of the present application;

[0118] Fig.11 A schematic diagram of a satellite system in another regeneration mode applicable to an embodiment of the present application;

[0119] Fig.12 A schematic diagram of a communication method provided in an embodiment of the present application;

[0120] Fig.13 Schematic diagrams of several X regions provided in the embodiments of the present application;

[0121] Fig.14 Schematic diagrams of several N bits provided for embodiments of the present application;

[0122] Fig.15Schematic diagram of two N bits provided for embodiments of the present application;

[0123] Fig.16 A schematic diagram of a first area set and a second area set provided in an embodiment of the present application;

[0124] Fig.17 A schematic diagram of another communication method provided in an embodiment of the present application;

[0125] Fig.18 A schematic diagram of another communication method provided in an embodiment of the present application;

[0126] Fig.19 A schematic diagram of another communication method provided in an embodiment of the present application;

[0127] Fig. 20 A schematic diagram of the structure of a communication device provided in an embodiment of the present application;

[0128] Fig.21 A schematic diagram of the structure of another communication device is provided for an embodiment of the present application;

[0129] Fig. 22 A schematic diagram of the structure of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0130] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0131] In order to better understand the embodiments of the present application, some of the terms involved are briefly explained before introducing the embodiments of the present application. It is understandable that these explanations are intended to make the embodiments of the present application easier to understand and should not be regarded as limiting the scope of protection required by the embodiments of the present application.

[0132] 1. Terminal equipment.

[0133] The terminal device is a device with wireless transceiver function, which can be a fixed device, a mobile device, a handheld device, a wearable device, a vehicle-mounted device, or a wireless device built into the above device (for example, a communication module or a chip system, etc.). The terminal device is used to connect people, objects, machines, etc., and can be widely used in various scenarios, such as but not limited to the following scenarios: cellular communication, device-to-device communication (device-to-device, D2D), vehicle to everything (vehicle to everything, V2X), machine-to-machine / machine-type communications (machine-to-machine / machine-type communications, M2M / MTC), Internet of Things (Internet of Things, IoT), virtual reality (virtual reality, VR), augmented reality (augmented reality, AR), industrial control (industrial control), self-driving, remote medical, smart grid (smart grid), smart furniture, smart office, smart wear, smart transportation, smart city (smart city), drones, robots and other scenarios of terminal devices. The terminal device may sometimes be referred to as user equipment (UE), terminal, access station, UE station, remote station, wireless communication device, or user device, etc.

[0134] 2. Network equipment.

[0135] The network device may be a device for communicating with a terminal device, and the network device may be a base station (base transceiver station, BTS) in a global system for mobile communication (global system for mobile communication, GSM) system or code division multiple access (code division multiple access, CDMA) system, or a base station (NodeB, NB) in a wideband code division multiple access (wideband code division multiple access, WCDMA) system, or an evolutionary Node B (eNB or eNodeB) in an LTE system, or a fifth generation (5G) base station. thThe network equipment in the communication system of the future (5G generation, 5G), the network equipment in the communication system of the 6G, the base station of the subsequent evolution of 3GPP, and the wireless controller in the cloud radio access network (CRAN) scenario, or the network equipment can be a relay station, an access point, a vehicle-mounted device, a wearable device, and a network equipment in the future 5G network or a network equipment in the future evolved public land mobile network (PLMN) or non-terrestrial networks (NTN) network. For example, the network equipment may include access network equipment, and / or core network equipment. The access network equipment is a device with wireless transceiver function, which is used to communicate with the terminal equipment. The access network equipment includes but is not limited to the base station (BTS, Node B, eNodeB / eNB, or gNodeB / gNB) in the above communication system, the transmission reception point (TRP), the base station of the subsequent evolution of 3GPP, the access node in the WiFi system, the wireless relay node, the wireless backhaul node, etc. The base station can be: a macro base station, a micro base station, a micro-micro base station, a small station, a relay station, etc. Multiple base stations may support the same access technology mentioned above, or may support different access technologies mentioned above. A base station may include one or more co-sited or non-co-sited transmission and reception points. A network device may also be a module or unit that completes some functions of a base station, for example, a centralized unit (CU), a distributed unit (DU), or a radio unit (RU). The CU here completes the functions of the radio resource control protocol and the packet data convergence protocol (PDCP) of the base station, and may also complete the functions of the service data adaptation protocol (SDAP); the DU completes the functions of the radio link control layer and the medium access control (MAC) layer of the base station, and may also complete the functions of part of the physical layer or all of the physical layer. For a detailed description of each of the above protocol layers, please refer to the relevant technical specifications of the 3rd Generation Partnership Project (3GPP). The CU and DU may be set separately, or may also be included in the same network element, such as the baseband unit (BBU).RU may be included in a radio frequency device or a radio frequency unit, for example, in a remote radio unit (RRU), an active antenna unit (AAU) or a remote radio head (RRH). In different systems, CU, DU or RU may also have different names, but those skilled in the art may understand their meanings. For example, in an ORAN system, CU may also be referred to as O-CU (open CU), DU may also be referred to as O-DU, and RU may also be referred to as O-RU. Any of the CU (or CU-CP, CU-UP), DU and RU in this application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module. The network device may also be a server, a wearable device, or an in-vehicle device. For example, the network device in the V2X technology may be a road side unit (RSU). This application does not specifically limit this. The following describes the access network device as a base station. The multiple access network devices in the communication system may be base stations of the same type or different types. The base station may communicate with the terminal device or communicate with the terminal device through a relay station. A terminal device can communicate with multiple base stations in different access technologies.

[0136] 3. System information (SI).

[0137] SI can include a master information block (MIB) and several system information blocks (SIBs). SI can be divided into minimum SI (MSI) and other SI (OSI).

[0138] (1) MSI, which contains basic information required for initial access and information required for obtaining OSI. A terminal device needs to receive the MIB and SIB1 of a cell before it can access the cell, or stay in the cell. MSI includes MIB and SIB1, where MIB contains cell barring status information and basic physical layer information of the cell required for further receiving system information, for example, control resource set (coreset) 0 (abbreviated as CORESET#0) configuration.

[0139] MIB can be broadcast periodically on the broadcast channel (BCH). SIB1 defines the scheduling of other types of system information blocks and contains information required for initial access. SIB1 can also be described as the remaining minimum SI (RMSI). SIB1 can be broadcast periodically on the downlink shared channel (DL-SCH) or sent to terminal devices in a connected state in a dedicated signaling manner on DL-SCH.

[0140] (2) OSI, including other SIBs besides SIB1, such as SIB2~SIB21, such as positioning SIB, and more SIBs that may be expanded later. These SIBs can be broadcast on DL-SCH periodically, or broadcast on DL-SCH on demand, or sent to connected terminal devices on DL-SCH in a dedicated signaling manner. It should be noted that for OSI, SIBs with the same period can be mapped into one SI message and sent together. For example, the on-demand method means that the network device may not broadcast some SI messages / SIBs first, and then the terminal device requests the corresponding SI message / SIB from the network device before the network device starts broadcasting these SI messages / SIBs.

[0141] For example, see Figure 1 , is a schematic diagram of a channel mapping related to system information. Figure 1 As shown in Figure 1, the logical channels, transport channels, and physical channels corresponding to MIB are: broadcast control channel (BCCH), broadcast channel (BCH), and physical broadcast channel (PBCH). Currently, the logical channels, transport channels, and physical channels corresponding to SIB1 or SI message are: BCCH, DL-SCH, and physical downlink shared channel (PDSCH).

[0142] 4. SIB1.

[0143] Currently, network equipment only supports one SIB1. That is to say, in a cell, the network equipment only sends one SIB1. All terminal devices that receive SIB1 in the cell receive the same SIB1, regardless of whether the terminal devices are located in the same cell. It should be noted that the network equipment only sends one SIB1, which does not mean that the SIB1 will not change at any time. SIB1 can change, but it only means that within a period of time (for example, a SIB1 cycle or a modification cycle), the network equipment only sends the same SIB1 in a cell. For example, the period of SIB1 is 160ms.

[0144] 5. Schedule downlink control information (DCI) of SIB1.

[0145] SIB1 can be transmitted on PDSCH, and the PDSCH for transmitting SIB1 is scheduled by DCI scrambled by system information-radio network temporary identity (SI-RNTI). The format of DCI for scheduling SIB1 and DCI for scheduling SI message can be the same (for example, both are DCI format1_0 in the current new radio (NR) protocol), and the scrambling information of DCI for scheduling SIB1 and DCI for scheduling SI message is the same (for example, both are SI-RNTI in the current NR protocol, and only one SI-RNTI value is supported, and the value of SI-RNTI is FFFF). Among them, the length of SI-RNTI is 16 bits.

[0146] In addition, in NR, the transmission of SIB1 and SI message may conflict in the time domain. Specifically, the DCI for scheduling SIB1 and the DCI for scheduling SI message may conflict in the time domain. For example, from the protocol point of view, the search spaces for SIB1 and SImessage (or other system information) are configured separately, and the terminal device determines the timing for the terminal device to monitor PDCCH according to the configuration of the search space. It can be understood that the terminal device determines the time domain resources that the terminal device may monitor SIB1 or SI message according to the configuration of the search space. It should be noted that the conflict here can be understood as overlap. Here, the SI-RNTI-encrypted DCI is used to schedule SIB1 or SI message. Optionally, there is 1 bit in the DCI (for example, the system information indicator field in the NR protocol) to indicate whether the DCI is to tune SIB1 or SImessage.

[0147] For example, see Figure 2 , Figure 2 This is a schematic diagram of DCI scheduling SIB1 and SI message. Figure 2 As shown, the network device schedules SIB1 and SI message respectively through two DCIs. Alternatively, the network device schedules the data corresponding to SIB1 and the data corresponding to SI message respectively through two DCIs. The two DCIs have the same format, and the scrambling information of the two DCIs is the same, both of which are SI-RNTI. After receiving the above two DCIs, the terminal device can determine whether it is scheduled SIB1 or SI message according to the systeminformation indicator field in the DCI.

[0148] It should be noted that, for the reception of SIB1 and SI message, since the transmission of the two may conflict in the time domain, and the scrambling information and DCI format of the DCI corresponding to SIB1 and SI message are the same, and the DCI that schedules SIB1 and SI message does not contain HARQ process ID information, in addition, for the reception of SIB1 and SI message, the MAC layer of the terminal device supports HARQ combined decoding, so it is necessary to indicate in the DCI whether the DCI scheduling is SIB1 or SImessage. If there is no such indication, the terminal device may mistakenly perform HARQ combined decoding on the SIB1 and SI message received twice, resulting in decoding errors.

[0149] In LTE, the transmission of SIB1 and SI message is separated in the time domain. Although the same SI-RNTI is used to schedule SIB1 and SI message in LTE, the terminal device can determine whether it is SIB1 or SI message received based on the time domain information of DCI (for example, search space). Therefore, in LTE, there is no need to indicate in the DCI whether the DCI is SIB1 or SI message.

[0150] In NR, for the transmission of different SI messages, their SI windows are separated in the time domain and do not overlap. Therefore, if the terminal device receives two SI-RNTI-scrambled DCIs, both indicating that they are scheduled as SI messages, the terminal device can determine whether the SI messages scheduled by the two DCIs are the same SI message based on the time domain resources of the monitored DCI (for example, based on whether the two DCIs are located in the same SI window). If they are the same SI message, the data corresponding to the newly received DCI can be combined and decoded with the previously received data by HARQ; if they are different, the data corresponding to the newly received DCI needs to be HARQ decoded separately.

[0151] 6. MAC layer processing and RLC layer processing corresponding to SIB1.

[0152] The control plane protocol stack may include a non-access stratum (NAS), a radio resource control (RRC) layer, a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, a media access control (MAC) layer, and a physical layer (PHY). The user plane protocol stack may include a service data adaptation protocol (SDAP) layer, a PDCP layer, an RLC layer, a MAC layer, and a PHY layer.

[0153] Please refer to Figure 3 , which is a schematic diagram of transmission between layers in downlink transmission. Figure 3 The downward arrow in the figure indicates sending, and the upward arrow indicates receiving. Figure 3As shown, after the RRC layer of the network device generates the signaling to be transmitted (for example, an RRC message or an RRC protocol data unit (PDU)), it can submit it to the corresponding PDCP entity. For the convenience of description, we will refer to the signaling as / replace it with data in the following; for the data received from the RRC layer (for example, a PDCP service data unit (SDU)), the PDCP entity may obtain the PDCP PDU after certain processing or without processing, and then submit the PDCP PDU to the RLC entity corresponding to the PDCP entity; for the data received from the PDCP layer (for example, RLC SDU), the RLC entity may obtain the RLC PDU after certain processing or without processing, and then submit the RLC PDU to the corresponding MAC entity; for the data received from the RLC layer (for example, MAC SDU), the MAC entity may obtain the MAC PDU after certain processing or without processing, and then submit the MAC PDU to the PHY layer; the PHY layer will perform air interface transmission.

[0154] Correspondingly, after the PHY layer of the terminal device receives the data (for example, the transport block (TB)), it will submit the TB to the MAC layer; for the data received from the PHY (for example, the TB or the MAC PDU), the MAC entity may obtain the MAC SDU after certain processing or without processing, and then submit the MAC SDU to the corresponding RLC layer; for the data received from the MAC layer (for example, the RLC PDU), the RLC entity may obtain the RLC SDU after certain processing or without processing, and then submit the RLC SDU to the corresponding PDCP entity; for the data received from the RLC layer (for example, the PDCP PDU), the PDCP entity may obtain the PDCP SDU after certain processing or without processing, and then submit the PDCP SDU to the RRC layer; for the data received from the PDCP layer (for example, the RRC message or the RRC PDU), which can also be called signaling, the RRC layer will perform RRC decoding or ASN.1 decoding to determine the meaning of the received data (for example, the bit string).

[0155] For the transmission and reception of data (or signaling), the data may be encapsulated / processed accordingly in each layer, or may be transparently transmitted. For example, for transmission, the data received by a layer from the upper layer of the layer is called SDU, and the data delivered to the lower layer by the layer is called PDU. For the layer, the data received from the upper layer and the data delivered to the lower layer may be the same (for example, transparent transmission) or different (for example, the data received from the upper layer is encapsulated / processed by the layer to obtain the data delivered to the lower layer). For example, the data received by the PDCP entity from the upper layer is called PDCP SDU, and the data sent by the PDCP entity to the lower layer is called PDCP PDU; the data received by the RLC entity from the upper layer is called RLC SDU, and the data sent by the RLC entity to the lower layer is called RLC PDU; the data received by the MAC entity from the upper layer is called MAC SDU, and the data sent by the MAC entity to the lower layer is called MAC PDU. For example, for reception, the data received by a layer from the layer below it is called PDU, and the data delivered to the upper layer by the layer is called SDU. For the layer, the data received from the lower layer and the data delivered to the upper layer may be the same (for example, transparent transmission) or different (for example, the data received from the lower layer is processed by the layer to obtain the data delivered to the upper layer). For example, the data received by the PDCP entity from the lower layer is called PDCP PDU, and the data sent by the PDCP entity to the upper layer is called PDCP SDU; the data received by the RLC entity from the lower layer is called RLC PDU, and the data sent by the RLC entity to the upper layer is called RLC SDU; the data received by the MAC entity from the lower layer is called MAC PDU, and the data sent by the MAC entity to the upper layer is called MAC SDU.

[0156] The upper layer and the lower layer are relative concepts. For example, taking the RLC layer as an example, for the RRC layer, the RLC layer can be the lower layer of the RRC layer, but for the MAC layer, the RLC layer can be the upper layer of the MAC layer. For another example, the lower layer of the RRC layer may include any one or more of the following: PHY layer, MAC layer, RLC layer and PDCP layer.

[0157] It should be noted that the transmission and reception of data (or signaling) does not necessarily pass through all the above layers. For example, currently, the transmission of SIB1 and SI message may not pass through the PDCP layer.

[0158] It should be noted that for the RLC layer, there may be multiple transmission modes, such as transparent mode (TM). For example, currently, for the transmission of SIB1 and SI message, the RLC layer adopts the transparent mode.

[0159] Please refer to Figure 4, is a schematic diagram of the structure of a MAC PDU. Figure 4 As shown, the MAC PDU format corresponding to the logical channel (i.e. BCCH) and the transport channel (i.e. DL-SCH) of SIB1 in the embodiment of the present application is transparent MAC (transparentMAC); in other words, such a MAC PDU can be used for transmission mapped from BCCH to DL-SCH; in other words, the transmission at the MAC layer is transparent. In other words, a MAC PDU contains only one MAC SDU, which is the same as the MAC PDU.

[0160] It should be noted that, currently, for the transmission of SIB1 and SI message, the terminal device uses the HARQ process corresponding to the broadcast to process the received data (for example, TB). If it is a new transmission, the terminal device will try to decode the received data; if it is a retransmission, the terminal device will try to combine and decode. If the terminal device decodes successfully, the terminal device will submit the decoded MAC PDU or MAC SDU to the RLC layer. Because the MAC PDU format corresponding to SIB1 is transparent MAC, the contents of MAC PDU and MAC SDU are the same, and there is no need to perform disassembly and demultiplexing (disassemble and demultiplex) on the MAC PDU.

[0161] Continue as Figure 3 As shown, the transmission mode of the RLC layer can be TM, that is, for BCCH-related transmission, RLC adopts TM. After the RLC layer of the terminal device receives a data (RLC PDU) from the MAC layer of the terminal device, it will not perform any processing and will submit the RLC PDU or RLC SDU to the RRC layer.

[0162] It should be noted that for data or signaling (for example, data corresponding to SIB1, or data containing SIB1), in the protocol, different layers have different names. For example, in the physical layer, it is called TB, in the MAC layer it is called MAC PDU or MAC SDU, in the RLC layer it is called RLC PDU or RLC SDU, in the PDCP layer it is called PDCP PDU or PDCP SDU, and in the RRC layer it is called RRC signaling or RRC message or RRC PDU.

[0163] 7. Abstract syntax notation one (ASN.1) corresponding to SIB1

[0164] At present, the logical channel (BCCH) and transport channel (DL-SCH) corresponding to the SIB1 and SI message are the same. The messages corresponding to the logical channel (BCCH) and the transport channel (DL-SCH) (for example, RRC message or RRC PDU or RRC message set or RRC message class) or the uplink transmitted messages (for example, RRC message or RRC PDU or RRC message set or RRC message class (for example, class)) can be broadcast control channel-downlink shared channel-message (broadcast control channel-downlink-sharedchannel-Message, BCCH-DL-SCH-Message). The message structure of the BCCH-DL-SCH-Message or the BCCH-DL-SCH-Message can include indication information to indicate whether it contains SIB1 or SI message, so that the terminal device can correctly perform RRC decoding / ASN.1 decoding. For example, the terminal device receives a DCI encrypted with SI-RNTI, and the DCI indicates that the data / PDSCH scheduled by the DCI is / includes SIB1. The MAC layer of the terminal device performs decoding (possibly after HARQ combined decoding). After the MAC layer of the terminal device successfully decodes the data scheduled by the DCI encrypted with SI-RNTI, it will be submitted to the RRC layer of the terminal device. The RRC layer of the terminal device determines that the received RRC message or RRC PDU or RRC message set or RRC message class contains SIB1 based on the indication information in the received RRC message or RRC PDU or RRC message set or RRC message class. The terminal device can decode each bit in the received RRC message according to the ASN.1 of SIB1 to obtain the correct information. It should be noted that the RRC layer that will be submitted to the terminal device can be understood as: the MAC layer of the terminal device submits to the RLC layer of the terminal device, and the RLC layer of the terminal device submits to the RRC layer of the terminal device.

[0165] 8. SI message.

[0166] Multiple SIBs with the same period can be mapped into one SI message. For example, the message definitions of a system information message may include indication information, which indicates which SIBs are included in the RRC message or SI message or RRC PDU, so that the terminal device can correctly perform RRC decoding / ASN.1 decoding.

[0167] 9. SI changes.

[0168] If the network device wants to change (some) system information (or, system information other than ETWS and / or CMAS), the network device will first notify the terminal device of the SI change in a modification cycle. It should be understood that the SI change notification may be transmitted multiple times in a modification cycle. Starting from the next modification cycle, the network device will send updated system information. After the terminal device receives the SI change notification, the terminal device obtains new system information from the beginning of the next modification cycle.

[0169] The modification period boundary is defined by the system frame number (SFN) value, SFN mod m = 0, where m is the number of radio frames that make up the modification period. The network device will configure the modification period in SIB1, m = modificationPeriodCoeff * defaultPagingCycle. The modification period is equal to one number multiplied by the paging cycle, which means that there can be multiple paging cycles in one modification period. Optionally, the minimum value of the modification period is 2*32 frames = 64frame = 640ms, and the maximum value is 10.24s, instead of 40.96s. Among them, modificationPeriodCoeff is a coefficient, and the optional values ​​are 2, 4, 8, and 16. defaultPagingCycle represents the default paging cycle, and the optional values ​​are 32frame, 64frame, 128frame, or 256frame.

[0170] A terminal device in RRC idle state (RRC_IDLE) or RRC inactive state (RRC_INACTIVE) will monitor SI change notifications in the paging occasions of the terminal device in each discontinuous reception (DRX) cycle. If the terminal device is provided with a common search space for monitoring paging on an active BWP, a terminal device in RRC_CONNECTED will monitor SI change notifications at least once in any paging occasion of each modification cycle.

[0171] If the terminal device receives an SI change notification in a modification cycle, the terminal device may reacquire SIB1 from the next modification cycle, and determine whether the information of OSI (eg, a SIB) has changed based on the information in SIB1 (eg, a value tag corresponding to a SIB).

[0172] The SI change notification is contained in a short message transmitted on the DCI scrambled by the P-RNTI.

[0173] For example, the P-RNTI scrambled DCI may include a Short Message field. For example, the P-RNTI scrambled DCI includes a Short Messages Indicator, which is used to indicate whether there is paging scheduling information in the DCI and / or to indicate whether there is a short message in the DCI. Please refer to Table 1 below for a possible value of a Short Message indicator.

[0174] Table 1

[0175]

[0176] If the Short Messages Indicator indicates that a short message exists in the DCI, the SI change notification can be determined based on the content in the short massage.

[0177] Please refer to Table 2 below for the content of a Short Message. Bit 1 shown in Table 2 is the most significant bit.

[0178] Table 2

[0179]

[0180] 8. OSI scheduling information.

[0181] The scheduling information of OSI is included in SIB1. The scheduling information of OSI may also include / be replaced by: the scheduling information of SImessage corresponding to OSI, or the scheduling information of SI, or the scheduling information of SI message.

[0182] The OSI scheduling information may include any one or more of the following: SI window length, information of one or more SI messages, and information of the system information area to which the cell belongs (eg, the ID of the system information area to which the cell belongs).

[0183] The information of an SI message may include any one or more of the following: SIB mapping information, SI message period, SI message broadcast status, and SI message window position.

[0184] The SIB mapping information may include / be replaced by any one or more of the following: information about one or more SIBs (or OSIs) contained in the SI message (or, information about one or more SIBs (or OSIs) mapped to the SI message), the value tag of the SIB (or, each SIB, or, each SIB included in the SI message), an indication of whether the SIB (or, each SIB, or, each SIB included in the SI message) is regionally valid.

[0185] 9. Cell.

[0186] Optionally, a cell can be understood as an area where a network device can provide wireless communication services to a terminal device, and is a component unit of a communication network. Alternatively, a cell can be regarded as a division unit of a communication coverage range of a network device. A network device can correspond to one or more cells, or the one or more cells can be regarded as one or more cells of the network device.

[0187] Optionally, the cell is a cell managed by a network device. For example, the network device is a base station, and a base station can manage one cell or multiple cells. For example, a cell is a coverage area centered on the base station. For example, when a base station manages multiple cells, the base station can have antennas in multiple directions, and one antenna is used to cover a certain geographical area in the corresponding direction. The geographical area is called a sector. A sector uses one or more wireless carrier frequencies to complete wireless coverage. A wireless carrier frequency uses a carrier frequency point. The sector and the carrier frequency constitute the minimum service unit for providing terminal device access, that is, a cell.

[0188] In the embodiments of the present application, the number of nouns, unless otherwise specified, means "singular noun or plural noun", that is, "one or more". "At least one" means one or more, and "plural" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. For example, A / B means: A or B. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c means: a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, c can be single or plural.

[0189] In the following, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features, nor can they be understood as "first" or "second" in the sense of time sequence or order. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this embodiment, unless otherwise specified, "multiple" means two or more.

[0190] In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0191] In the embodiments of the present application, words such as "exemplary", "for example", "in one possible design", and "in one possible implementation" are used to indicate examples, illustrations, or descriptions. Any embodiment or design scheme described as "exemplary", "for example", "in one possible design", and "in one possible implementation" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary", "for example", "in one possible design", and "in one possible implementation" is intended to present related concepts in a concrete way for ease of understanding.

[0192] The “when” and “if” involved in the embodiments of the present application mean that corresponding processing will be performed under certain objective circumstances. It does not limit the time, nor does it require any judgment action when implementing it, nor does it mean that there are other limitations.

[0193] The communication solution provided in the embodiments of the present application can be applied to various communication networks (or systems), such as long term evolution (LTE) communication networks, fifth generation (5G) communication networks, and the like. thThe invention relates to sixth generation (5G) mobile communication networks (such as new radio (NR) networks), NTNs, satellite-ground integrated communication networks, sixth generation communication networks or communication networks that will appear in the process of future communication development (or future evolution), etc. NTNs may be communication networks involving flying objects, and NTNs may include satellite networks, high altitude platform stations (HAPS) or air-to-ground networks, etc. NTNs may be deployed separately or as a supplement to ground networks. The communication scheme provided in the embodiments of the present application may also be applied to machine-to-machine (M2M) communication networks, machine type communication (MTC) communication networks or other communication networks, and the embodiments of the present application are not limited to this.

[0194] Figure 5 Schematic diagram of a communication system applicable to the embodiment of the present application. Figure 5 As shown, the terminal device can access the wireless network to obtain services of the external network (such as the Internet) through the wireless network, or communicate with other devices through the wireless network, such as communicating with other terminal devices. The wireless network includes a radio access network (RAN) device and / or a core network (CN) device, wherein the RAN device is used to access the terminal device to the wireless network, and the CN device is used to manage the terminal device and provide a gateway for communicating with the external network.

[0195] It should be understood that Figure 5 The number of devices in the communication system shown is for illustration only, and the embodiments of the present application are not limited thereto. In actual applications, the communication system may further include more terminal devices, more RAN devices, and other devices.

[0196] It should also be understood that when a terminal device communicates with other terminal devices, the technical solutions in the embodiments of the present application are also applicable.

[0197] Figure 6 Schematic diagram of a network architecture applicable to the embodiment of the present application. Figure 6As shown, the network architecture includes CN equipment, RAN equipment and terminal equipment. Among them, the RAN equipment includes a baseband device and a radio frequency device, wherein the baseband device can be implemented by one node or by multiple nodes, and the radio frequency device can be implemented independently from the baseband device, or integrated in the baseband device, or some functions are integrated independently and some functions are integrated in the baseband device. For example, in an LTE communication system, the RAN equipment (eNB) includes a baseband device and a radio frequency device, wherein the radio frequency device can be arranged remotely relative to the baseband device, for example, a remote radio unit (RRU) is a remote wireless unit arranged relative to the BBU.

[0198] The communication between RAN equipment and terminal equipment follows a certain protocol layer structure. For example, the control plane protocol layer structure may include functions of protocol layers such as the RRC layer, PDCP layer, radio link control (RLC) layer, MAC layer and PHY layer; the user plane protocol layer structure may include functions of protocol layers such as the PDCP layer, RLC layer, MAC layer and physical layer; in one possible implementation, there is also an SDAP layer above the PDCP layer.

[0199] The RAN device may implement the functions of the protocol layers such as RRC, PDCP, RLC and MAC by one node, or may implement the functions of these protocol layers by multiple nodes. For example, the RAN device may include a central unit (CU) and / or at least one distributed unit (DU). At least one DU may be centrally controlled by one CU. Figure 6 As shown, CU and DU can be divided according to the protocol layers of the wireless network, for example, the functions of the PDCP layer and above protocol layers are set in the CU, and the functions of the protocol layers below the PDCP, such as the RLC layer and the MAC layer, are set in the DU.

[0200] This division of the protocol layer is only an example. It can also be divided in other protocol layers, such as dividing in the RLC layer, setting the functions of the RLC layer and the protocol layers above in the CU, and the functions of the protocol layers below the RLC layer in the DU; or dividing in a certain protocol layer, for example, setting some functions of the RLC layer and the functions of the protocol layers above the RLC layer in the CU, and setting the remaining functions of the RLC layer and the functions of the protocol layers below the RLC layer in the DU. In addition, it can also be divided in other ways, such as dividing by latency, setting the functions whose processing time needs to meet the latency requirements in the DU, and the functions that do not need to meet the latency requirements in the CU.

[0201] In addition, the radio frequency device can be independently integrated and not placed in the DU, or it can be integrated in the DU, or partly remotely located and partly integrated in the DU, without any limitation here.

[0202] Figure 7 FIG. 1 is a schematic diagram of another network architecture applicable to an embodiment of the present application. Figure 6 The network architecture shown, Figure 7 The control plane (CP) and user plane (UP) of the CU can also be separated and implemented by dividing them into different entities, namely, a control plane (CP) CU entity (i.e., a CU CP entity) and a user plane (UP) CU entity (i.e., a CU UP entity).

[0203] In the above network architecture, the signaling generated by the CU can be sent to the terminal device through the DU, or the signaling generated by the terminal device can be sent to the CU through the DU. The DU can directly encapsulate the signaling through the protocol layer and transparently transmit it to the terminal device or CU without parsing it. In the following embodiments, if the transmission of such signaling between the DU and the terminal device is involved, at this time, the sending or receiving of the signaling by the DU includes this scenario. For example, the signaling of the RRC or PDCP layer will eventually be processed as the signaling of the PHY layer and sent to the terminal device, or it will be converted from the received signaling of the PHY layer. Under this architecture, the signaling of the RRC or PDCP layer can also be considered to be sent by the DU, or sent by the DU and the RF loader.

[0204] It should be understood that in different systems, CU (including CU-CP or CU-UP) or DU may also have different names, but those skilled in the art can understand their meanings. For example, in an open radio access network (O-RAN) system, CU may also be referred to as O-CU (open CU), DU may also be referred to as O-DU, CU-CP may also be referred to as O-CU-CP, and CU-UP may also be referred to as O-CU-UP.

[0205] It should be understood that the above Figures 5 to 7 The network architecture shown is only an example of the communication system used in this application and does not have any limiting effect on the embodiments of this application. In particular, the embodiments of this application can also be applied to other network architectures, for example, without distinguishing between base stations and core networks, that is, base stations and core networks can belong to the same network device, and the communication between the network device and the terminal device; or, the communication between terminal devices, etc.

[0206] It should be understood that the terminal device or network device in the embodiment of the present application includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also referred to as main memory). The operating system can be any one or more computer operating systems that implement business processing through a process, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer includes applications such as a browser, an address book, a word processing software, and an instant messaging software. In addition, the embodiment of the present application does not specifically limit the specific structure of the execution subject of the method provided in the embodiment of the present application, as long as it can communicate according to the method provided in the embodiment of the present application by running a program that records the code of the method provided in the embodiment of the present application, for example, the execution subject of the communication method provided in the embodiment of the present application can be a terminal device or a network device, or a functional module, chip, or circuit in a terminal device or a network device that can call and execute a program.

[0207] The communication scheme provided in the embodiment of the present application is not only used for Figures 5 to 7 In addition to the communication system shown, it can also be applied to satellite systems. The following describes the satellite system to which the communication scheme provided in the embodiment of the present application is applicable. According to the communication mode of the satellite, the satellite system can be divided into a transparent transmission mode and a regeneration (regenerative) mode. The transparent transmission mode can also be called a transparent forwarding mode. In the transparent transmission mode, the satellite can also be called a satellite base station, etc. The satellite is used for frequency conversion and forwarding signals, which are generated and sent by the satellite ground station. In the regeneration mode, the satellite can carry (or couple) a base station or a DU in the base station. The satellite can parse and process the signals received from the ground, and send the processed signals to the terminal device to achieve signal regeneration.

[0208] Figure 8 A schematic diagram of a satellite system in a transparent transmission mode applicable to an embodiment of the present application is illustrated. Figure 8 Satellites and / or satellite ground stations may be used as examples of network devices.

[0209] like Figure 8As shown, the satellite can access the network using a non-3GPP radio protocol. A communication connection is established between the terminal device and the satellite, and between the satellite and the satellite ground station through a non-3GPP radio protocol interface. The satellite ground station may include an access point, and the satellite ground station and the CN may communicate with each other through a next generation (NG) interface (such as an N2 interface or an N3 interface, etc.), and the CN and the data network (DN) may communicate through an N6 interface.

[0210] Fig. 9 A schematic diagram of a satellite system in another transparent transmission mode applicable to an embodiment of the present application is illustrated. Fig. 9 Satellites and / or satellite ground stations may be used as examples of network devices.

[0211] Fig. 9 and Figure 8 The difference is that satellites can access the network through 3GPP wireless protocols. Fig. 9 As shown in the figure, the satellite ground station is the base station, and the satellite can be equivalent to a repeater. The satellite can establish a communication connection with the satellite ground station through the Uu interface (or air interface), and the terminal device and the satellite can establish a communication connection through other transceivers. The interface between the satellite ground station, CN, and DN is similar to Figure 8 The similarities can be referenced to each other and will not be repeated here.

[0212] Fig.10 A schematic diagram of a satellite system in a regeneration mode applicable to an embodiment of the present application is illustrated. Fig.10 Satellites and / or satellite ground stations may be used as examples of network devices.

[0213] like Fig.10 As shown in the figure, the satellite is equipped with a base station, and the satellite ground station is equipped with a base station. The terminal equipment and the satellite can establish a communication connection through the Uu interface, and the satellite and the satellite ground station can establish a communication connection through the Xn interface. The interface between the satellite ground station, CN, and DN is similar to Figure 8 The same, the same points can be referenced, and will not be repeated here. Fig.10 In the satellite system shown, the satellite ground station may also be a gateway of the satellite and does not include a base station.

[0214] Fig.11 FIG. 1 is a schematic diagram illustrating another satellite system in a regeneration mode applicable to an embodiment of the present application. Fig.11 Satellites and / or satellite ground stations may be used as examples of network devices.

[0215] like Fig.11 As shown in the figure, the satellite carries the DU in the base station, and the satellite ground station contains the CU in the base station. The terminal equipment and the satellite can establish a communication connection through the Uu interface, and the satellite and the satellite ground station can establish a communication connection through the F1 interface. The interface between the satellite ground station, CN, and DN is similar to Figure 8 The similarities can be referenced to each other and will not be repeated here.

[0216] It should be noted that in Figures 8 to 11 The satellite ground stations in the satellite system shown can all be used to connect satellites to the network. The satellite ground stations can also be called gateways, ground stations or earth stations, etc.

[0217] in addition, Figures 8 to 11 The satellite system shown does not constitute a limitation on the communication system to which the embodiments of the present application can be applied. Figures 8 to 11 The names of the devices in the satellite system are not limited. For example, in different communication scenarios, satellite ground stations or satellites may have other names. In addition, the satellites described in the embodiments of the present application may also be replaced by other non-ground network devices, such as high-altitude platform devices or high-altitude aircraft, and the embodiments of the present application do not limit this.

[0218] For example, the SIB1 (or SIB1bis) sent by the network equipment in a cell is the same, and accordingly, all the terminal equipment receiving SIB1 (or SIB1bis) in the cell receive the same SIB1 (or SIB1bis). It should be noted that when the terminal equipment sends the same SIB1 (or SIB1bis), it does not mean that the SIB1 (or SIB1bis) remains unchanged at any time, but refers to a period of time (for example, a SIB1 (or SIB1bis) cycle or a modification cycle), for example, the terminal equipment only sends the same SIB1 (or SIB1bis) in the cell.

[0219] SIB1 (or SIB1bis) carries the scheduling information of OSI, so after receiving SIB1 (or SIB1bis), a terminal device in a cell will monitor OSI according to the scheduling information of OSI in SIB1 (or SIB1bis). However, in NTN, the scope of a cell is large, so the network equipment may not send OSI in any area of ​​a cell. The content of OSI scheduling information can refer to the OSI scheduling information in the previous text, for example.

[0220] Therefore, if the terminal device still monitors OSI according to the OSI scheduling information in SIB1 (or SIB1bis), but the network device may not actually send OSI, the terminal device will monitor OSI but will not receive OSI, that is, the terminal device will perform multiple invalid monitoring, resulting in high power consumption of the terminal device.

[0221] In view of this, an embodiment of the present application provides a communication method, in which a first communication device can obtain indication information, the indication information indicating an area (i.e., a first area set) where first system information (such as OSI, specifically SIB19) is sent, and / or an area where the first system information does not occur (such as a second area set). In this way, the first communication device can clearly identify which areas will send the first system information and which areas will not send the first system information. The first communication device may not monitor the first system information in the area where the first system information is not sent, thereby reducing invalid monitoring of the first communication device and saving power consumption.

[0222] The following describes the method provided by the embodiments of the present application in conjunction with the accompanying drawings. For example, in the accompanying drawings corresponding to the various embodiments of the present application, the steps indicated by dotted lines are optional steps. For example, the first communication device involved in the various embodiments of the present application is, for example, Figures 5 to 11 For example, the second communication device is Figures 5 to 7 The CN equipment and / or network equipment involved, or Figures 8 to 11 Any satellite and / or satellite ground station involved, etc. In addition, if the technical solutions provided by the various embodiments of the present application are applied to other communication systems, the name and / or function of the device may change, and the various embodiments of the present application do not limit this.

[0223] The devices involved in the various embodiments of the present application (such as the first communication device or the second communication device) may be one or more devices, or a software module or a hardware module in a device, and the various embodiments of the present application do not specifically limit this. For example, the first communication device involved in the embodiments of the present application may be, for example, a terminal device, or a software module or a hardware module (such as a chip) in a terminal device, or other devices, or, or a software module or a hardware module (such as a chip) in other devices, etc., without limitation. The second communication device may be, for example, an access network device, such as a satellite and / or a satellite ground station in NTN, etc. The second communication device may also be a software module or a hardware module (such as a chip) in an access network device, or other devices, or, or a software module or a hardware module (such as a chip) in other devices, etc., without limitation.

[0224] It should be noted that the SIB1 involved in the various embodiments of the present application may include / replace with: SIB1bis, or SIB1 or SIB1bis. In addition, the indication involved in the present application may include: direct indication, or indirect indication, or explicit indication, or implicit indication. In the present application, "include" may include: direct inclusion, or indirect inclusion, or explicit inclusion, or implicit inclusion. For example, information A directly indicates information B, which may be that information A carries information B. Information A indirectly indicates information B, which may be that information A carries information C and information D, and the receiving end determines information B based on information C and information D. In addition, the "indication" and "include" involved in the various embodiments of the present application may be replaced with each other.

[0225] It should be noted that the area involved in each embodiment of the present application may include / replaced with any one or more of the following: range, SSB, beam, or area / range / beam corresponding to SSB. It should be noted that the association involved in each embodiment of the present application may include / replaced with: correspondence. Correspondence may include / replaced with: association.

[0226] It should be noted that the first system information (or, second system information) involved in each embodiment of the present application may include / replace with: DCI corresponding to (or associated with) the first system information (or, second system information), and / or the first system information (or, second system information). For example, the DCI corresponding to the first system information (or, second system information) may include / replace with: DCI for scheduling the first system information (or, second system information), or DCI encrypted by SI-RNTI. For example, sending (or receiving) the first system information may include / replace with: sending (or receiving) the DCI corresponding to the first system information. For example, not sending (or not receiving) the first system information may include / replace with: not sending (or not receiving) the DCI corresponding to the first system information.

[0227] Please refer to Fig.12 , which is a schematic diagram of a communication method provided in an embodiment of the present application.

[0228] S1201. The first communication device obtains instruction information.

[0229] For example, the first communication device acquiring the indication information may include / be replaced by: the first communication device receiving the indication information. For example, correspondingly, the second communication device sends the indication information, or the second communication device sends the indication information to the first communication device.

[0230] For example, obtain can include / be replaced by: obtain, or receive, or receive.

[0231] Optionally, the second communication device may send the indication information in a broadcast manner or a unicast manner, which is not specifically limited in the embodiment of the present application.

[0232] Exemplarily, the indication information may be included in a message broadcast by the second communication device, or the indication information may be included in a message sent by the second communication device via proprietary signaling, or the indication information may be included in a message sent by the second communication device to the first communication device via proprietary signaling.

[0233] For example, the second communication device broadcasts the indication information, or the second communication device sends the indication information through dedicated signaling, or the second communication device sends the indication information to the first communication device through dedicated signaling.

[0234] Optionally, the indication information may be carried in SIB1 (e.g., the first SIB1), SIB1bis (e.g., the first SIB1bis), downlink control signaling (DCI) (e.g., the first DCI) or master information block (MIB) (e.g., the first MIB), etc., which is not specifically limited in the embodiments of the present application. For example, DCI may include / be replaced by: paging DCI. For example, the indication information may be carried in a short message of the paging DCI.

[0235] For example, the paging DCI may include / be replaced by: paging-related DCI, or P-RNTI-scrambled DCI.

[0236] For example, the MIB may include system information transmitted on the BCH. For example, the MIB may include any one or more of the following: necessary information for the terminal device / first communication apparatus to access the network, cell barring status information, or basic physical layer information of the cell required to receive more system information.

[0237] For example, SIB1 may include any one or more of the following: scheduling information of OSI, information required for initial access, information related to accessing a cell (for example, information related to evaluating whether a terminal device is allowed to access a cell), common (or, public, or, common to all UEs, or, common to all UEs) wireless resource configuration information, or prohibition information for UAC (unified access control).

[0238] For example, SIB1bis may include OSI scheduling information and / or satellite-related information. For example, satellite-related information may include: satellite information of the current cell (or current cell) and / or satellite information of neighboring cells.

[0239] Optionally, the indication information may include / indicate information of the first area set and / or information of the second area set. It should be understood that the first area set and the second area set are only used to distinguish the two area sets in name, but do not limit the size of the two area sets and the number of areas included in the two area sets.

[0240] In a possible implementation, the first area set may include / be an area where the first system information is sent, or an area where the first system information exists. Optionally, the second area set may include / be an area where the first system information is not sent, or an area where the first system information does not exist.

[0241] For example, the first area set may include / be an area where the second communication device sends the first system information. For example, the second area set may include / be an area where the second communication device does not send the first system information.

[0242] For example, send may include / be replaced by one or more of the following: may send, broadcast, or may broadcast.

[0243] For example, sending the first system information may include / be replaced by one or more of the following: possibly sending the first system information, broadcasting the first system information, or possibly broadcasting the first system information.

[0244] For example, the second communication device sends / may send the first system information in the first area set.

[0245] For example, the first area set may include / be replaced by: an area in the first area set, or, on / inside / in the first area set, or, on / inside / inside an area in the first area set.

[0246] For example, not sending may include / be replaced by one or more of: not possible to send, not broadcast, or not possible to broadcast.

[0247] For example, not sending the first system information may include / be replaced by one or more of the following: it is impossible to send the first system information, it is not broadcast the first system information, or it is impossible to broadcast the first system information.

[0248] For example, the second communication device does not send / cannot send the first system information in the second area set.

[0249] For example, the second area set may include / be replaced by: an area in the second area set, or, on / inside / in the second area set, or, on / inside / inside an area in the second area set.

[0250] In another possible implementation, the first area set may include / be an area that receives the first system information. Optionally, the second area set may include / be an area that does not receive the first system information.

[0251] For example, the first area set may include / be an area where the first communication device receives the first system information. For example, the second area set may include / be an area where the first communication device does not receive the first system information.

[0252] For example, receive may include / be replaced by one or more of the following: may receive, obtain, may obtain, listen, or may listen.

[0253] For example, receiving the first system information may include / be replaced by one or more of the following: possibly receiving the first system information, obtaining the first system information, or possibly obtaining the first system information. For example, receiving the first system information may be understood as: executing or possibly executing the action of receiving the first system information, but does not limit whether the first system information is received.

[0254] For example, the first communication device receives / may receive the first system information in the first area set.

[0255] For example, not receiving may include / be replaced by one or more of the following: not possible to receive, not obtaining, not possible to obtain, not monitoring, or not possible to monitor.

[0256] For example, not receiving the first system information may include / be replaced by one or more of the following: it is impossible to receive the first system information, it is not obtained, or it is impossible to obtain the first system information. For example, not receiving the first system information may be understood as: not performing the action of receiving the first system information.

[0257] For example, the first communication device does not receive / cannot receive the first system information in the second area set.

[0258] In another possible implementation, the first area set may include / be an edge area. Optionally, the second area set may include / be a center area.

[0259] For example, the edge region may include / be replaced by: the non-central region.

[0260] For example, the center area may include / be replaced by: the non-edge area.

[0261] For example, the edge area may include / be replaced by: an edge area of ​​a cell (eg, the first cell).

[0262] For example, the central area may include / be replaced by: the central area of ​​a cell (eg, the first cell).

[0263] For example, the second communication device sends the first system information in the edge area.

[0264] For example, the second communication device is to send / may send / will send the first system information on / in / in the edge area. Optionally, the second communication device sends the first system information in the edge area, and may send the first system information in the edge area on demand. For example, the broadcast status of the SI message / first system information related to the first system information is: not broadcast or on demand or on-demand broadcast. For example, the second communication device does not always / always broadcast the first system information, and broadcasts the first system information when the first communication device or terminal equipment requests the first system information.

[0265] For example, the second communication device does not send the first system information in the central area.

[0266] For example, the second communication device does not send / cannot send the first system information on / in / in the center area.

[0267] For example, the second communication device is to send / may send / will send the first system information on / within / in the first area set. Optionally, the second communication device sends the first system information in the first area set, and may send the first system information in the first area set on demand. For example, the broadcast status of the SI message / first system information related to the first system information is: not broadcast or on demand or on-demand broadcast. For example, the second communication device does not always / always broadcast the first system information, and broadcasts the first system information when the first communication device or terminal equipment requests the first system information.

[0268] Optionally, the first system information may include / only include information of neighboring cells of the first cell. Exemplarily, the first system information may include one or more system information or SIBs or SI messages. Optionally, the first system information may include any one or more of the following: SIB19, SIB2, SIB3, SIB4, SIB5, SI message corresponding to SIB19, SI message corresponding to SIB2, SI message corresponding to SIB3, SI message corresponding to SIB4, and SI message corresponding to SIB5.

[0269] Optionally, it should be understood that, unless otherwise specifically emphasized, the first system information in each embodiment of the present application may be regarded as a certain type or kind of information, and does not emphasize specific information sent / received / transmitted at a certain time.

[0270] Optionally, the first system information or the first system information includes / which system information or SIB or SImessage can be configured by the second communication device, for example, it can be configured by the second communication device through an RRC message; or it can be pre-configured, or it can be defined in the protocol, which is not limited here.

[0271] For example, SIB2 may include cell reselection information. For example, SIB2 is mainly related to the serving cell. For example, SIB2 may include cell reselection information common to intra-frequency, inter-frequency and / or inter-system cell reselection (or, applicable to more than one type of cell reselection, but not necessarily all), for example, SIB2 may include intra-frequency cell reselection information other than that related to neighboring cells.

[0272] For example, SIB3 may include / only include neighboring cell related information related to / only related to intra-frequency cell reselection. For example, SIB3 may include cells with specific reselection parameters and exclude-listed cells.

[0273] For example, SIB4 may include / only include information related to / only related to inter-frequency cell reselection. For example, SIB4 may include information about other NR frequencies and / or inter-frequency neighboring cells related to cell reselection. For example, SIB4 may include information that can be used for NR idle / inactive state measurements. For example, SIB4 may include frequency-common cell reselection parameters and cell-specific reselection parameters.

[0274] For example, SIB5 may include / include only information related to / only to inter-RAT cell reselection. For example, SIB5 may include information about E-UTRA frequencies and / or E-UTRA neighboring cells related to cell reselection. For example, SIB5 may include frequency-common cell reselection parameters.

[0275] For example, SIB19 may include / only include satellite assistance information (eg, satellite assistance information used for or for NTN access).

[0276] Optionally, the first system information and / or indication information is associated with the first cell. For example, the first system information and / or indication information may be sent by the second communication device in / on / in the first cell. For another example, the first system information and / or indication information may be acquired by the first communication device in / on / in the first cell.

[0277] Optionally, the first system information may not include information of the first cell. For example, the first system information may not include one or more of the following, and / or, one or more of the following corresponding SI messages: MIB, SIB1, SIB1bis, SIB2, SIB3, SIB4, SIB5, SIB6, SIB7, SIB8, SIB9 or SIB related to a public warning system (PWS).

[0278] For example, SIB6 may include an earthquake and tsunami warning system (ETWS) primary notification.

[0279] For example, SIB7 may include ETWS secondary notification.

[0280] For example, SIB8 may include commercial mobile alert service (CMAS) notification.

[0281] For example, the PWS-related SIB may include an ETWS-related SIB and / or a CMAS-related SIB.

[0282] For example, SIB9 may include information related to global positioning system (GPS) time and / or coordinated universal time (UTC).

[0283] It should be understood that with the continuous evolution of standards, or in different communication standards (e.g., NR and / or LTE), any one or more of MIB, SIB1, SIB1bis, SIB2, SIB3, SIB4, SIB5, SIB6, SIB7, SIB8, PWS-related SIB and SIB9 may be replaced with other names, and the embodiments of the present application do not specifically limit this. In addition, with the continuous evolution of standards, the system information may also introduce other information. In this case, the first system information may also include other system information, which is not specifically limited.

[0284] For example, the first region set may include at least one region.

[0285] For example, the second region set may include at least one region.

[0286] Optionally, the first area set belongs to the first cell. Optionally, the second area set belongs to the first cell.

[0287] For example, the first cell may be a cell where the first communication device is currently located, or may be any cell of the second communication device, and there is no specific limitation on this.

[0288] Optionally, the first cell may include / may be divided into X areas. For example, X areas constitute the first cell, in other words, X areas constitute the complete first cell. For example, X may be an integer greater than or equal to 1. For example, X is 128 or 256 or 32 or 64.

[0289] Exemplarily, the first region set may include / belong to a part of or one or more regions among the X regions.

[0290] Exemplarily, the second region set may include / belong to a part of or one or more regions among the X regions.

[0291] For example, the first region set may include / be a plurality of continuous regions among the X regions, or may include / be a plurality of discontinuous regions among the X regions, which is not specifically limited in the embodiment of the present application.

[0292] For example, the second area set may include / be a plurality of continuous areas among the X areas, or may include / be a plurality of discontinuous areas among the X areas, which is not specifically limited in the embodiment of the present application.

[0293] Exemplarily, the X areas may be configured by the second communication device, for example, the second communication device may be configured through an RRC message; or they may be pre-configured, or they may be defined in the protocol, and are not limited here. For example, the X areas may be obtained by dividing the first cell according to a certain rule (for example, a first rule). For example, the first rule may be configured by the second communication device, for example, the second communication device may be configured through an RRC message; or they may be pre-configured, or they may be defined in the protocol, and are not limited here.

[0294] For example, the X regions may be obtained by evenly dividing the first cell. Or for example, the X regions are obtained by dividing based on the synchronization signal, and the synchronization signals corresponding to any two regions in the X regions are different. Specifically, for example, the indexes of the synchronization signals corresponding to any two regions are different. For example, the synchronization signal includes / is replaced by any one or more of the following: a synchronization signal (synchronization signal, SS), a synchronization signal block (synchronization signal bolck, SSB), or a synchronization signal and a PBCH block (synchronization signal block and PBCH block, or, SS / PBCH block, SSB). Optionally, the region may be replaced by a description of a synchronization signal (such as SSB), or, a region corresponding to a synchronization signal. For example, the index of the region may be the index of the synchronization signal corresponding to the region.

[0295] Or, for example, X areas are obtained by dividing by SSB, for example, one SSB is / corresponds to one area. Optionally, the index of the area can be determined according to the index of the SSB, for example, the index of the area is equal to the index of the SSB. Or, for example, X areas are obtained by dividing by wave position, for example, one wave position is / corresponds to one area. Optionally, the index of the area can be determined according to the index of the wave position, for example, the index of the area is equal to the index of the wave position. Optionally, one wave position may include 4 SSBs. For example, the first area set may include / replaced with any one or more of the following: the area corresponding to the first SSB set, the coverage area of ​​the first SSB set, or the coverage area corresponding to the first SSB set. For example, the first SSB set may include / replaced with: the SSB corresponding to the first area set. The second area set may include / replaced with any one or more of the following: the area corresponding to the second SSB set, the coverage area of ​​the second SSB set, or the coverage area corresponding to the second SSB set. For example, the second SSB set may include / replaced with: the SSB corresponding to the second area set.

[0296] Or for example, the X regions are obtained by dividing the regions by beams. For example, one beam is / corresponds to one region. For example, any two regions among the X regions correspond to different beams.

[0297] For example, the SSB may include any one or more of the following: primary synchronization signals (PSS), secondary synchronization signals (SSS), or PBCH.

[0298] For example, SSB may be used for synchronization and / or measurement.

[0299] Optionally, the area involved in the embodiments of the present application may include / be replaced by a beam.

[0300] In one possible design, the X areas may only / all include / belong to the first area set. For example, the first cell is divided into an area (or, a first area set) for sending the first system information. The area for sending the first system information may include / be replaced by: an area where the second communication device sends the first system information.

[0301] For example, see Fig.13 , which is a schematic diagram of several X regions provided in the embodiments of the present application. Fig.13 As shown in (1), the X regions only include / all belong to the first region set.

[0302] In another possible design, the X areas may only / all include / belong to the second area set. For example, the first cell is divided into an area (or a second area set) where the first system information is not sent. The area where the first system information is not sent may include / be replaced by: an area where the second communication device does not send the first system information.

[0303] For example, see Fig.13 As shown in (2), the X regions only include / all belong to the second region set.

[0304] Optionally, the X areas may only include / contain / belong to the first area set and the second area set. For example, a portion of the X areas (for example, M areas) include / belong to the first area set, and another portion of the X areas (for example, XM areas) include / belong to the second area set. For example, the first cell / the entire first cell is divided into an area (or, a first area set) for sending the first system information and an area (or, a second area set) for not sending the first system information. For example, X is a positive integer. For example, M is a positive integer. For example, M is less than X.

[0305] For example, see Fig.13 As shown in (3), the X regions only include / contain / belong to the first region set and the second region set.

[0306] In another possible design, the X areas may include / belong to the first area set, the second area set, and the third area set. For example, a portion of the X areas (e.g., M areas) include / belong to the first area set, a portion of the X areas (e.g., P areas) include / belong to the second area set, and another portion of the X areas (e.g., Y or XMP areas) include / belong to the third area set. For example, the first cell / the entire first cell is divided into an area (or, a first area set) where the first system information is sent, an area (or, a second area set) where the first system information is not sent, and other area sets. For example, Y is equal to XMP. For example, any one or more of M, P, and Y is a positive integer. For example, any one or more of M, P, and Y is less than X.

[0307] For example, see Fig.13 As shown in (4), the X areas include / belong to the first area set, the second area set and the third area set. Optionally, the first area set may belong to / be located in the central area of ​​the first cell. Optionally, the second area set may belong to / be located in the edge area of ​​the first cell. The third area set may include at least one area. Optionally, the third area set may be an area where the first system information is not sent, or may be an area where the first system information is sent, without specific limitation. In a possible implementation, the third area set may be an area where the first system information is not received, or may be an area where the first system information is received, without specific limitation. Optionally, the third area set may be an edge area, or may be a central area, without specific limitation. Among them, the area where the first system information is received may include / be replaced by: the area where the first communication device receives the first system information. The area where the first system information is not received may include / be replaced by: the area where the first communication device does not receive the first system information. Optionally, the third area set may be preconfigured or predefined, without specific limitation.

[0308] For example, the areas / sizes of different regions mentioned in the embodiments of the present application may be the same or different, and there is no limitation on this. For example, when a certain region set (such as the first region set or the second region set) includes multiple regions, the areas / sizes of any two regions in a certain region set may be the same or different, and there is no limitation on this.

[0309] The area mentioned in the embodiment of the present application may be a two-dimensional area, such as a two-dimensional area on the ground, or may be a three-dimensional area or higher, such as a building. That is, the embodiment of the present application does not specifically limit the dimension of the area.

[0310] For example, the information of the first area set may include / indicate / replace any one or more of the following: the first area set, sending the first system information in the first area set (for example, the second communication device sends the first system information in the first area set), or receiving the first system information in the first area set (for example, the first communication device receives the first system information in the first area set).

[0311] For example, the information of the second area set may include / indicate / be replaced by any one or more of the following: a second area set, the first system information is not sent in the second area set (for example, the second communication device does not send the first system information in the first area set), or the first system information is not received in the first area set (for example, the first communication device does not receive the first system information in the first area set).

[0312] Optionally, the indication information may include / indicate / be replaced by any one or more of the following: sending the first system information in the first area set (for example, the second communication device sends the first system information in the first area set), receiving the first system information in the first area set (for example, the first communication device receives the first system information in the first area set), not sending the first system information in the second area set (for example, the second communication device does not send the first system information in the first area set), not receiving the first system information in the first area set (for example, the first communication device does not receive the first system information in the first area set), or one or more areas (for example, the first area) belong to / are the first area set and / or the second area set.

[0313] Optionally, the first area set may include one area. For example, the first area set may include / be replaced by: the first area.

[0314] Optionally, the second area set may include one area. For example, the second area set may include / be replaced by: the first area.

[0315] Optionally, the indication information may include / indicate the information of the first area set and / or the information of the second area set in any of the following ways, which are described below with examples in combination with A1, A2 and A3.

[0316] A1. The indication information indicates the information of the first area set and / or the information of the second area set in the form of a bitmap.

[0317] Exemplarily, the indication information includes N bits, where N is a positive integer. Part or all of the N bits may be used to carry information of the first area set and / or information of the first area set. For example, N may be equal to the number of areas included in the first cell, such as X. For example, N may also be the number of areas included in the first area set, such as M. For example, N may also be the number of areas included in the second area set, such as P. For example, N may also be the total number of areas included in the first area set and the second area set, such as M+P or XY. For example, N is 128 or 256 or 32 or 64.

[0318] Optionally, Y bits out of N bits can be used as reserved bits, or Y bits out of N bits can be used to carry other information (other information is information other than indication information), or Y bits out of N bits can be ignored or their specific values ​​can be ignored, and there is no specific limitation on this.

[0319] Optionally, when N is equal to the number of areas included in the first cell (for example, X), and the X areas also include a third area set, Y bits out of N bits can be used as reserved bits, or Y bits out of N bits can be used to carry other information (other information is information other than indication information), or Y bits out of N bits can be ignored or their specific values ​​can be ignored, and there is no specific limitation on this. For example, the first communication device / the second communication device ignores the values ​​of Y bits out of N bits or Y bits out of N bits.

[0320] Optionally, the positions of Y bits in the N bits and / or the value of Y may be configured by the second communication device, for example, may be configured by the second communication device through an RRC message; or may be pre-configured, or may be defined in the protocol, without limitation herein. Optionally, the Y bits in the N bits may be continuous or discontinuous, without limitation.

[0321] For example, see Fig.14 , is an example of several N bits provided in the embodiment of the present application. Fig.14 As shown in (1), N bits include 128 bits, and one bit (or each bit) of the 128 bits is used to carry information about whether a region (or the region corresponding to the one bit) belongs to the first region set and / or the second region set. It should be understood that Fig.14 A box in can represent one bit. Fig.14As shown in (2), the N bits include 128 bits, there are Y bits in the middle of the 128 bits, and one bit other than the Y bits in the 128 bits (or each bit other than the Y bits in the 128 bits) is used to carry information on whether an area (or the area corresponding to the one bit) belongs to the first area set and / or the second area set.

[0322] For example, one bit among N bits (for example, any one bit, or any one bit except Y bits) is used to indicate whether the second communication device sends the first system information or / or does not send the first system information in an area (or, the area corresponding to the one bit), or the first communication device receives the first system information or / or does not receive the first system information in an area (or, the area corresponding to the one bit), or is used to indicate that an area (or, the area corresponding to the one bit) belongs to / is a first area set or / or a second area set. For example, the value of the first bit is a first value, indicating that the second communication device sends the first system information in the first area, or indicates that the first communication device receives the first system information in the first area, or indicates that the first area belongs to / is a first area set; the value of the first bit is a second value, indicating that the second communication device does not send the first system information in the first area, or indicates that the first communication device does not receive the first system information in the first area, or indicates that the first area belongs to / is a second area set. For example, the first value is 1 and the second value is 0; or, the first value is 0 and the second value is 1, and there is no limitation on this. Optionally, an area is, for example, the area where the first communication device is currently located. Optionally, the first bit is associated with the first region. It should be understood that the first bit involved in various embodiments of the present application may be any one of the N bits, and the first bit is not limited to the first bit among the N bits.

[0323] For example, the first bit of the N bits is used to indicate whether the second communication device sends the first system information or / or does not send the first system information in the first area, or to indicate whether the first communication device receives the first system information or / or does not receive the first system information in the first area, or to indicate whether the first area belongs to / is a first area set or / or a second area set. For example, if the second communication device sends the first system information in the first area, then the first area is an area in the first area set; if the second communication device does not send the first system information in the first area, then the first area is an area in the second area set. For example, the first area may be any area in the first area set and the second area set. It should be understood that the first area involved in the various embodiments of the present application may be any area in the area set, and the first area is not limited to the area that is located first in the area set, or the area whose index is the starting index.

[0324] For example, the value of the first bit is a first value, indicating that the second communication device sends the first system information in the first area, or indicates that the first communication device receives the first system information in the first area, or indicates that the first area belongs to / is a first area set. The value of the first bit is a second value, indicating that the second communication device does not send the first system information in the first area, or indicates that the first communication device does not receive the first system information in the first area, or indicates that the first area belongs to / is a second area set.

[0325] Exemplarily, one bit in the N bits is associated with one region. For example, different bits in the N bits are associated with different regions. For example, this application does not limit how bits in the N bits are associated with regions.

[0326] Optionally, the first bit at the N-bit position may be used to represent / determine the index of the first region.

[0327] In one possible design, the Fth bit from the leftmost / rightmost / lowest / highest bit among the N bits (or, starting from the leftmost / rightmost / lowest / highest bit) corresponds to an area indexed by F or to an area related to F (for example, an area indexed by F-1 or F+1).

[0328] Optionally, F is an integer, either a positive integer, or a non-negative integer.

[0329] For example, see Fig.15 , which is a schematic diagram of two N bits provided in the embodiment of the present application. Fig.15 As shown in (1), there are 4 areas in the first cell, and the indexes of the 4 areas are 1 to 4 respectively. The N bits are specifically 4 bits, and the 4 bits from left to right or from high to low correspond to: the area with index 1, the area with index 2, the area with index 3 and the area with index 4 respectively.

[0330] In another possible design, the Fth bit from the leftmost / rightmost / lowest / highest bit among the N bits (or, starting from the leftmost / rightmost / lowest / highest bit) corresponds to the Fth region whose index is from small to large or from large to small except for the third region set, or corresponds to the region related to F (for example, the F+1 or F-1th region whose index is from small to large or from large to small except for the third region set).

[0331] like Fig.15 As shown in (2), there are 67 areas in the first cell, and the indexes of the 67 areas are 1 to 67, among which the areas with indexes 2 to 64 belong to the third data set, and the N bits are specifically 4 bits. The 4 bits from left to right or from high to low correspond to: the area with index 1, the area with index 65, the area with index 66 and the area with index 67.

[0332] In one possible implementation, each / all of the N bits indicate that the corresponding area sends the first system information, or belongs to / is a first area set. For example, in this case, it can be regarded as N bits carrying information of the first area set. In this case, optionally, the bits in the N bits correspond one-to-one to the areas in the first area set, in other words, each bit in the N bits corresponds to an area in the first area set.

[0333] For example, the N bits may be specifically: 11111. "0" indicates that the first system information is not sent or belongs to / is the second area set, and "1" indicates that the first system information is sent or belongs to / is the first area set. Then the N bits indicate that the areas corresponding to the N bits all send the first system information or belong to / are the first area set. In this case, the first area set includes / is the area corresponding to the N bits.

[0334] In another possible implementation, each / all bits in the N bits indicate that the corresponding area does not send the first system information, or belongs to / is a second area set. For example, in this case, it can be regarded as N bits carrying information of the second area set. In this case, optionally, the bits in the N bits correspond one-to-one to the areas in the second area set, in other words, each bit in the N bits corresponds to an area in the second area set.

[0335] For example, the N bits may be specifically: 0000. "0" indicates that the first system information is not sent, or belongs to / is the second area set, and "1" indicates that the first system information is sent, or belongs to / is the first area set. Then the N bits indicate that the areas corresponding to the N bits do not send the first system information, or belong to / is the second area set. In this case, the second area set includes / is the area corresponding to the N bits.

[0336] In another possible implementation, a portion of the N bits indicates that the corresponding area sends the first system information, or belongs to / is a first area set, and another portion of the N bits indicates that the corresponding area does not send the first system information, or belongs to / is a second area set. For example, in this case, it can be regarded as N bits carrying information of the first area set and information of the second area set. In this case, optionally, the bits in the N bits correspond one-to-one to the areas in the first area set and the second area set. In other words, each bit in the N bits corresponds to an area in the first area set and the second area set.

[0337] For example, the N bits may be specifically: 000000001. "0" indicates that the first system information is not sent, or belongs to / is the second area set, and "1" indicates that the first system information is sent, or belongs to / is the first area set. Then the N bits indicate that the areas corresponding to the bits with a value of 0 do not send the first system information, or belong to / is the second area set, and the areas corresponding to the bits with a value of 1 send the first system information or belong to / is the first area set. In this case, the first area set includes / is the area corresponding to the bits with a value of 1, and the second area set includes / is the area corresponding to the bits with a value of 0.

[0338] A2. The indication information indicates the number and / or index of regions in the first region set, or the number and / or index of regions in the second region set, or the number and / or index of regions in the first region set and the number and / or index of regions in the second region set.

[0339] Optionally, indexes of regions in the first region set are continuous.

[0340] Optionally, the indexes of the region / two regions / two adjacent regions in the first region set satisfy the first relationship. For example, the first relationship may be that the indexes of the two regions / two adjacent regions are continuous and increasing, or the indexes of the two regions / two adjacent regions are continuous and decreasing, etc., or the indexes of the two adjacent regions differ by a third value. For example, the first relationship indicates that the indexes of the two regions / two adjacent regions are continuous, in which case the indexes of the regions in the first region set are continuous. For example, the third value is 1 or 2 or 3 or other values, etc. Optionally, the first relationship may be configured by the second communication device, for example, it may be configured by the second communication device through an RRC message; or it may be pre-configured, or it may be defined in the protocol, which is not limited here.

[0341] Optionally, indexes of regions in the second region set are continuous.

[0342] In one possible design, the indexes of the region / two regions / two adjacent regions in the second region set satisfy the second relationship. For example, the second relationship may be that the indexes of the two regions / two adjacent regions are continuous and increasing, or the indexes of the two regions / two adjacent regions are continuous and decreasing, etc., or the indexes of the two regions / two adjacent regions differ by a fourth value. For example, the second relationship indicates that the indexes of the two regions / two adjacent regions are continuous. In this case, the indexes of the regions in the second region set are continuous. For example, the fourth value is 1 or 2 or 3 or other values. For example, the fourth value is the same as or different from the third value. Optionally, the second relationship may be configured by the second communication device, for example, it may be configured by the second communication device through an RRC message; or it may be pre-configured, or it may be defined in the protocol, which is not limited here.

[0343] For example, the indication information may indicate (or include) at least one item of information from A2-1 to A2-4.

[0344] A2-1, first index information. For example, the first index information indicates a start index and / or an end index of a region in the first region set. For example, the first index information may be considered as an example of information of the first region set. Or, for example, A2-1 may be considered as an example of information indicating (or including) the first region set.

[0345] For example, the first index information indicates a start index or an end index of a region in the first region set. Alternatively, the first index information indicates a start index and an end index of a region in the first region set.

[0346] In a possible implementation, the number of regions in the first region set may be preconfigured, or may be defined in a protocol, or may be fixed. Optionally, the number of regions in the first region set is 20 or other number, which is not limited.

[0347] For example, the first index information indicates that the starting index of the area in the first area set is 0, and the number of areas in the first area set is 20, which means that the first area set includes areas with indexes from 0 to 19, or that areas with indexes from 0 to 19 are all areas that send the first system information.

[0348] For another example, the first index information indicates that the end index of the area in the first area set is 255, and the number of areas in the first area set is 20, which means that the first area set includes areas with indexes from 236 to 255, or that areas with indexes from 236 to 255 are all areas for sending the first system information.

[0349] In another possible implementation, the starting index of the area in the first area set may be preconfigured, or may be defined in the protocol, or may be fixed. Exemplarily, the starting index of the area in the first area set is 0 or 1 or others.

[0350] For example, the first index information indicates that the end index of the area in the first area set is 19, and the start index of the area in the first area set is 0, which means that the first area set includes areas with indexes 0 to 19, or that areas with indexes 0 to 19 are all areas for sending the first system information.

[0351] In another possible implementation manner, the end index of the area in the first area set may be preconfigured, or may be defined in a protocol, or may be fixed.

[0352] Exemplarily, the start index of the region in the first region set is 255 or 256 or 127 or 128 or 32 or 31 or 64 or 63 or others.

[0353] For example, the first index information indicates that the starting index of the area in the first area set is 236, and the ending index of the area in the first area set is 255, which means that the first area set includes areas with indexes from 236 to 255, or that areas with indexes from 236 to 255 are all areas for sending the first system information.

[0354] For another example, the first index information indicates that the starting index and ending index of the areas in the first area set are 0 and 19 respectively, which means that the first area set includes areas with indexes 0 to 19, that is, areas with indexes 0 to 19 are all areas for sending the first system information.

[0355] A2-2, second index information. For example, the second index information indicates a start index and / or an end index of a region in the second region set. For example, the second index information may be considered as an example of information of the second region set. Or, for example, A2-2 may be considered as an example of information indicating (or including) the second region set.

[0356] For example, the second index information indicates a start index or an end index of a region in the second region set, or the second index information indicates a start index and an end index of a region in the second region set.

[0357] In a possible implementation, the number of areas in the second area set may be preconfigured, or may be defined in a protocol, or may be fixed. Optionally, the number of areas in the second area set is 20 or other, which is not limited.

[0358] For example, the first index information indicates that the starting index of the area in the second area set is 0, and the number of areas in the second area set is 20, which means that the second area set includes areas with indexes from 0 to 19, or areas with indexes from 0 to 19 are all areas that do not send the first system information.

[0359] For another example, the first index information indicates that the end index of the area in the second area set is 255, and the number of areas in the second area set is 20, which means that the second area set includes areas with indexes from 236 to 255, or that areas with indexes from 236 to 255 are all areas that do not send the first system information.

[0360] In another possible implementation, the starting index of the area in the second area set may be preconfigured, or may be defined in the protocol, or may be fixed. Optionally, the starting index of the area in the second area set is 0 or 1 or other.

[0361] For example, the first index information indicates that the end index of the area in the second area set is 19, and the start index of the area in the second area set is 0, which means that the second area set includes areas with indexes 0 to 19, or that areas with indexes 0 to 19 are all areas that do not send the first system information.

[0362] In another possible implementation manner, the end index of the area in the second area set may be preconfigured, or may be defined in a protocol, or may be fixed.

[0363] Exemplarily, the start index of the region in the second region set is 255 or 256 or 127 or 128 or 32 or 31 or 64 or 63 or others.

[0364] For example, the first index information indicates that the starting index of the area in the second area set is 236, and the ending index of the area in the second area set is 255, which means that the second area set includes areas with indexes from 236 to 255, or that areas with indexes from 236 to 255 are all areas that do not send the first system information.

[0365] For another example, the first index information indicates that the starting index and ending index of the areas in the second area set are 0 and 19 respectively, which means that the second area set includes areas with indexes 0 to 19, or areas with indexes 0 to 19 are areas that do not send the first system information.

[0366] A2-3, first quantity information. For example, the first quantity information indicates the number of regions in the first region set. For example, the first quantity information can be regarded as an example of information of the first region set. Or, for example, A2-3 can be regarded as an example of information indicating (or including) the first region set.

[0367] In a possible implementation manner, the start index of the area in the first area set may be preconfigured, or may be defined in a protocol, or may be fixed.

[0368] Exemplarily, the starting index of the region in the first region set is 0 or 1 or other.

[0369] For example, the first quantity information indicates that the number of areas in the first area set is 20, and the starting index of the areas in the first area set is 0, which means that the first area set includes areas with indexes 0 to 19, or that areas with indexes 0 to 19 are all areas that send the first system information.

[0370] In another possible implementation manner, the end index of the area in the first area set may be preconfigured, or may be defined in a protocol, or may be fixed.

[0371] Exemplarily, the start index of the region in the first region set is 255 or 256 or 127 or 128 or 32 or 31 or 64 or 63 or others.

[0372] For example, the first quantity information indicates that the number of areas in the first area set is 236, and the end index of the areas in the first area set is 255, which means that the first area set includes areas with indexes from 236 to 255, or that areas with indexes from 236 to 255 are all areas for sending the first system information.

[0373] A2-4, second quantity information. For example, the first quantity information indicates the number of regions in the second region set. For example, the second quantity information can be regarded as an example of information of the second region set. Or, for example, A2-4 can be regarded as an example of information indicating (or including) the second region set.

[0374] In a possible implementation manner, the start index of the area in the second area set may be preconfigured, or may be defined in a protocol, or may be fixed.

[0375] Exemplarily, the starting index of the region in the second region set is 0 or 1 or other.

[0376] For example, the first quantity information indicates that the number of areas in the second area set is 20, and the starting index of the areas in the second area set is 0, which means that the second area set includes areas with indexes from 0 to 19, or that areas with indexes from 0 to 19 are all areas that do not send the first system information.

[0377] In another possible implementation manner, the end index of the area in the second area set may be preconfigured, or may be defined in a protocol, or may be fixed.

[0378] Exemplarily, the start index of the region in the second region set is 255 or 256 or 127 or 128 or 32 or 31 or 64 or 63 or others.

[0379] For example, the first quantity information indicates that the number of areas in the second area set is 236, and the end index of the areas in the second area set is 255, which means that the second area set includes areas with indexes from 236 to 255, or that areas with indexes from 236 to 255 are all areas that do not send the first system information.

[0380] Optionally, the indication information includes at least two items of A2-1 to A2-4, which will be described below in conjunction with the situations of A2-5 to A2-13. For example, the first communication device may correspondingly obtain information of the first area set and / or information of the second area set based on at least two items of A2-1 to A2-4.

[0381] For example, the indication information may indicate (or include): any one of A2-5 to A2-13.

[0382] A2-5, A2-1 and A2-3, namely, first index information and first quantity information. For example, the first index information and the first quantity information can be regarded as an example of information of the first area set. Or, for example, A2-5 can be regarded as an example of information indicating that the information indicates (or includes) the first area set.

[0383] For example, the first index information indicates that the starting index of the area in the first area set is 0, and the first quantity information indicates that the number of areas in the first area set is 21, which means that the first area set includes areas with indexes from 0 to 20, or that areas with indexes from 0 to 20 are all areas that send the first system information.

[0384] A2-6, A2-2 and A2-4, namely, second index information and second quantity information. For example, the second index information and the second quantity information can be regarded as an example of information of the second area set. Or, for example, A2-6 can be regarded as an example of information indicating that the information indicates (or includes) the second area set.

[0385] For example, the second index information indicates that the starting index of the area in the second area set is 60, and the second quantity information indicates that the number of areas in the second area set is 20, which means that the second area set includes areas with indexes from 60 to 79, or that areas with indexes from 60 to 79 are all areas that do not send the first system information.

[0386] A2-7, A2-1 and A2-4, namely, the first index information and the second quantity information. For example, the first index information can be regarded as an example of the information of the first area set, and the second quantity information can be regarded as an example of the information of the second area set. Or, for example, A2-7 can be regarded as an example of the indication information indicating (or including) the information of the first area set and the information of the second area set.

[0387] In a possible implementation manner, the number of areas in the first area set may be preconfigured, or may be defined in a protocol, or may be fixed.

[0388] In one possible implementation, the starting index of the area in the second area set may be preconfigured, or may be defined in the protocol, or may be fixed; and / or the ending index of the area in the second area set may be preconfigured, or may be defined in the protocol, or may be fixed.

[0389] For example, the first index information indicates that the starting index of the area in the first area set is 1, and the number of areas in the first area set is 10, which means that the first area set includes areas with indexes 1 to 9, or areas with indexes 1 to 9 are all areas that send the first system information. For example, the second quantity information indicates that the number of areas in the second area set is 10, and the starting index of the areas in the second area set is 60, which means that the second area set includes areas with indexes 60 to 69, or areas with indexes 60 to 69 are all areas that do not send the first system information.

[0390] A2-8, A2-2 and A2-3, namely, the first quantity information and the second index information. For example, the first quantity information can be regarded as an example of the information of the first area set, and the second index information can be regarded as an example of the information of the second area set. Or, for example, A2-8 can be regarded as an example of the indication information indicating (or including) the information of the first area set and the information of the second area set.

[0391] In one possible implementation, the starting index of the area in the first area set may be preconfigured, or may be defined in the protocol, or may be fixed; and / or the ending index of the area in the first area set may be preconfigured, or may be defined in the protocol, or may be fixed.

[0392] In a possible implementation manner, the number of areas in the second area set may be preconfigured, or may be defined in a protocol, or may be fixed.

[0393] For example, the first quantity information indicates that the number of areas in the first area set is 10, and the starting index of the areas in the first area set is 1, which means that the first area set includes areas with indexes 1 to 9, or that the areas with indexes 1 to 9 are all areas that send the first system information. For example, the second index information indicates that the starting index in the second area set is 60 and the ending index is 62, which means that the second area set includes areas with indexes 60 to 62, or that the areas with indexes 60 to 62 are all areas that do not send the first system information.

[0394] A2-9, A2-1 and A2-2 are the first index information and the second index information. For example, the first index information can be regarded as an example of the information of the first area set, and the second index information can be regarded as an example of the information of the second area set. Or, for example, A2-9 can be regarded as an example of the indication information indicating (or including) the information of the first area set and the information of the second area set.

[0395] In one possible implementation, the number of regions in the first region set may be preconfigured, or may be defined in a protocol, or may be fixed. In another possible implementation, the starting index of the regions in the first region set may be preconfigured, or may be defined in a protocol, or may be fixed; and / or the ending index of the regions in the first region set may be preconfigured, or may be defined in a protocol, or may be fixed.

[0396] In one possible implementation, the number of areas in the second area set may be preconfigured, or may be defined in a protocol, or may be fixed. In another possible implementation, the starting index of the areas in the second area set may be preconfigured, or may be defined in a protocol, or may be fixed; and / or the ending index of the areas in the second area set may be preconfigured, or may be defined in a protocol, or may be fixed.

[0397] For example, see Fig.16 , is a schematic diagram of a first area set and a second area set provided in an embodiment of the present application. Fig.16 As shown, the indication information includes the information shown in A2-1 and A2-2, the first index information indicates that the starting index of the area in the first area set is 61, and the ending index is 256, the second index information indicates that the starting index of the area in the second area set is 1, and the ending index is 60; or, it indicates that the first area set includes areas with indexes from 61 to 256, and the second area set includes areas with indexes from 1 to 60.

[0398] A2-10, A2-3 and A2-4, namely, the first quantity information and the second quantity information. For example, the first quantity information can be regarded as an example of the information of the first area set, and the second quantity information can be regarded as an example of the information of the second area set. Or, for example, A2-10 can be regarded as an example of the indication information indicating (or including) the information of the first area set and the information of the second area set.

[0399] In one possible implementation, the starting index of the area in the first area set may be preconfigured, or may be defined in the protocol, or may be fixed; and / or the ending index of the area in the first area set may be preconfigured, or may be defined in the protocol, or may be fixed.

[0400] In one possible implementation, the starting index of the area in the second area set may be preconfigured, or may be defined in the protocol, or may be fixed; and / or the ending index of the area in the second area set may be preconfigured, or may be defined in the protocol, or may be fixed.

[0401] For example, the first quantity information indicates that the number of regions in the first region set is 10, and the starting index of the regions in the first region set is 10, which means that the first region set includes regions with indexes 10 to 19, or regions with indexes 10 to 19 are all regions that send the first system information. For example, the second quantity information indicates that the number of regions in the second region set is 10, and the ending index of the regions in the second region set is 80, which means that the second region set includes regions with indexes 71 to 80, or regions with indexes 71 to 80 are all regions that do not send the first system information.

[0402] A2-11, A2-1, A2-3 and A2-4, namely, first index information, first quantity information and second quantity information. For example, the first quantity information and the first index information can be regarded as an example of information of the first area set, and the second quantity information can be regarded as an example of information of the second area set. Or, for example, A2-11 can be regarded as an example of indication information indicating (or including) information of the first area set and information of the second area set.

[0403] In one possible implementation, the starting index of the area in the second area set may be preconfigured, or may be defined in the protocol, or may be fixed; and / or the ending index of the area in the second area set may be preconfigured, or may be defined in the protocol, or may be fixed.

[0404] For example, the first quantity information indicates that the number of regions in the first region set is 10, and the first index information indicates that the starting index of the regions in the first region set is 10, which means that the first region set includes regions with indexes 10 to 19, or regions with indexes 10 to 19 are all regions that send the first system information. For example, the second quantity information indicates that the number of regions in the second region set is 10, and the ending index of the regions in the second region set is 80, which means that the second region set includes regions with indexes 71 to 80, or regions with indexes 71 to 80 are all regions that do not send the first system information.

[0405] A2-12, A2-2, A2-3 and A2-4, namely, the second index information, the first quantity information and the second quantity information. For example, the first quantity information can be regarded as an example of the information of the first area set, and the second quantity information and the second index information can be regarded as an example of the information of the second area set. Or, for example, A2-12 can be regarded as an example of the indication information indicating (or including) the information of the first area set and the information of the second area set.

[0406] In one possible implementation, the starting index of the area in the first area set may be preconfigured, or may be defined in the protocol, or may be fixed; and / or the ending index of the area in the first area set may be preconfigured, or may be defined in the protocol, or may be fixed.

[0407] For example, the first quantity information indicates that the number of regions in the first region set is 10, and the starting index of the regions in the first region set is 10, which means that the first region set includes regions with indexes 10 to 19, or regions with indexes 10 to 19 are all regions that send the first system information. For example, the second quantity information indicates that the number of regions in the second region set is 10, and the second index information indicates that the ending index of the regions in the second region set is 80, which means that the second region set includes regions with indexes 71 to 80, or regions with indexes 71 to 80 are all regions that do not send the first system information.

[0408] A2-13, A2-1 to A2-4, namely, first index information, second index information, first quantity information, and second quantity information. For example, the first quantity information and the first index information can be regarded as an example of information of the first area set, and the second quantity information and the second index information can be regarded as an example of information of the second area set. Or, for example, A2-13 can be regarded as an example of indicating that the information indicates (or includes) information of the first area set and information of the second area set.

[0409] For example, if the first quantity information indicates that the number of regions in the first region set is 10, and the first index information indicates that the starting index of the regions in the first region set is 10, then it means that the first region set includes regions with indexes from 10 to 19, or that the regions with indexes from 10 to 19 are all regions that send the first system information. For example, if the second quantity information indicates that the number of regions in the second region set is 10, and the second index information indicates that the ending index of the regions in the second region set is 80, then it means that the second region set includes regions with indexes from 71 to 80, or that the regions with indexes from 71 to 80 are all regions that do not send the first system information.

[0410] A3. The indication information indicates information about indexes of regions in the first region set and / or information about indexes of regions in the second region set. For example, information about indexes of regions in the first region set may be considered as an example of information about the first region set. For example, information about indexes of regions in the second region set may be considered as an example of information about the second region set.

[0411] For example, the indication information indicates index information of one or more or all regions in the first region set and / or index information of one or more or all regions in the second region set.

[0412] Optionally, the indication information may include / indicate: whether the second communication device sends the first system information in an area (e.g., the first area) or / and does not send the first system information, or, the first communication device receives the first system information in an area (e.g., the first area) or / and does not receive the first system information, or, an area (e.g., the first area) belongs to / is a first area set or / and a second area set.

[0413] Optionally, the indication information is associated with the first area. For example, the second communication device sends the indication information in the first area. For example, the first communication device obtains the indication information in the first area.

[0414] Optionally, the indication information may be carried in DCI, etc., and the embodiments of the present application do not specifically limit this. For example, the indication information is carried in a paging DCI, or a short message of a paging DCI. Optionally, the indication information occupies 1 bit. For example, a first communication device receives a paging DCI in a first area, and the paging DCI includes indication information indicating that: a second communication device sends first system information in the first area, or, the first communication device receives first system information in the first area, or, the first area belongs to / is a first area set.

[0415] Optionally, the first area may be: an area where the first communication device is currently located, or an area where the first communication device obtains the indication information.

[0416] For example, the value of the indication information is the first value, indicating that the second communication device sends the first system information in the first area, or that the first communication device receives the first system information in the first area, or that the first area belongs to / is a first area set, and the value of the indication information is the second value, indicating that the second communication device does not send the first system information in the first area, or that the first communication device does not receive the first system information in the first area, or that the first area belongs to / is a second area set. For example, the first value is 1 and the second value is 0; or the first value is 0 and the second value is 1, and there is no limitation on this.

[0417] In a possible implementation manner, the indication information may include information about a fourth area set and / or information about a fifth area set in addition to information about the first area set and / or information about the second area set.

[0418] Optionally, the manner in which the indication information indicates the information of the fourth area set and / or the information of the fifth area set may refer to the manner in which the indication information indicates the information of the first area set and / or the information of the second area set is indicated above, and is not listed here again.

[0419] In a possible implementation manner, the fourth area set belongs to the second cell. Optionally, the fifth area set also belongs to the second cell.

[0420] Optionally, the fourth area set may be an area set that sends the first system information. Optionally, the fifth area set may be an area set that does not send the first system information. For example, the second cell is different from the first cell. For example, in this possible implementation, the indication information may include not only relevant information about the area set of the first cell, but also relevant information about area sets related to other cells (including but not limited to the second cell).

[0421] Optionally, S1202: The first communication device determines a first area set and / or a second area set.

[0422] For example, determining the first area set may include / be replaced by any one or more of the following: determining an area for sending first system information, determining a set of areas for sending first system information, determining an edge area, determining a set of edge areas, determining that a second communication device sends first system information in a first area set, or determining that a first communication device receives first system information in a first area set.

[0423] For example, determining the second area set may include / be replaced by any one or more of the following: determining an area where the first system information is not sent, determining a set of areas where the first system information is not sent, determining a central area, determining a set of central areas, determining that the second communication device does not send the first system information in the second area set, or determining that the first communication device does not receive the first system information in the first area set.

[0424] Optionally, if the indication information indicates the information of the first area set and / or the information of the second area set in different ways, then the first communication device executes S1202 in different ways, which is described below by example.

[0425] C1. The information of the first area set and / or the information of the second area set is indicated in the manner of A1, that is, the indication information indicates the information of the first area set and / or the information of the second area set in the form of a bitmap.

[0426] For example, if the indication information indicates information of the first area set, the first communication device may decode the indication information to determine the first area set. Optionally, the first communication device may determine that all areas in the first cell except the first area set are the second area set, or determine that all areas in the first cell except the first area set and the third area set are the second area set.

[0427] Alternatively, if the indication information indicates information of the second area set, the first communication device may decode the indication information to determine the second area set. Optionally, the first communication device may determine that all areas in the first cell except the second area set are the first area set, or determine that all areas in the first cell except the second area set and the third area set are the first area set.

[0428] Alternatively, if the indication information indicates information of the first area set and information of the second area set, the first communication device may decode the indication information to determine the first area set and the second area set.

[0429] In a possible implementation, when N can be equal to the number of areas included in the first cell, and when the X areas also include a third area set, Y bits out of the N bits can be used as reserved bits, or the Y bits can be used to carry other information, without specific limitation. In this case, the first communication device can determine the first area set and / or the second area set based on bits other than the Y bits out of the N bits. In other words, the first communication device can determine the first area set and / or the second area set without parsing the Y bits, or it can be described as the first communication device ignoring the Y bits.

[0430] C2. Use method A2 to indicate the information of the first area set and / or the information of the second area set.

[0431] C2-1. If the indication information includes the first index information shown in A2-1.

[0432] For example, in the case where the first index information indicates the start index or end index of the area in the first area set, the first communication device may determine the first area set based on the number of areas included in the first area set, the first relationship, and the first index information. The number of areas included in the first area set and the first relationship may be preconfigured or predefined in the second communication device and the first communication device, or may be indicated to the first communication device by the second communication device, or may be determined by negotiation between the first communication device and the second communication device.

[0433] Alternatively, when the first index information indicates the start index and the end index of the area in the first area set, the first communication device may determine the first area set based on the first relationship and the first index information. The first communication device may obtain the first relationship by referring to the above content of obtaining the first relationship.

[0434] The following uses an example in which the first relationship may be that the indexes of two adjacent areas are continuous and increasing to introduce the manner in which the first communication device determines the first area set.

[0435] In the case where the first index information indicates the start index and the end index of the region in the first region set, the first communication device may determine the first region set directly based on the first index information.

[0436] Alternatively, the first index information includes a start index or an end index of the area in the first area set, and the first communication device may determine the first area set based on the first index information and the number of areas in the first area set. The number of areas in the first area set may be preconfigured or predefined in the first communication device.

[0437] Alternatively, the first index information indicates the starting index of the area in the first area set, and the first communication device may determine the first area set based on the first index information and the ending index of the area in the first area set. The ending index of the area in the first area set may be preconfigured or predefined in the first communication device.

[0438] Alternatively, the first index information indicates the end index of the area in the first area set, and the first communication device may determine the first area set based on the first index information and the start index of the area in the first area set. The start index of the area in the first area set may be preconfigured or predefined in the first communication device.

[0439] In a possible implementation, the first communication device may determine that all areas in the first cell except the first area set are the second area set, or determine that all areas in the first cell except the first area set and the third area set are the second area set.

[0440] C2-2. The indication information includes the second index information shown in A2-2.

[0441] For example, in the case where the second index information indicates the starting index or the ending index of the area in the second area set, the first communication device may determine the second area set based on the number of areas included in the second area set, the second relationship, and the second index information. The number of areas included in the second area set and the second relationship may be preconfigured or predefined in the second communication device and the first communication device, or may be indicated to the first communication device by the second communication device, or may be determined by negotiation between the first communication device and the second communication device. The second relationship refers to the relationship satisfied by the indexes of two adjacent areas in the second area set. For example, the second relationship may be that the indexes of two adjacent areas are continuous and increasing, or that the indexes of two adjacent areas are continuous and decreasing, etc. The second relationship may be the same as or different from the first relationship.

[0442] Alternatively, when the second index information indicates the start index and the end index of the area in the first area set, the first communication device may determine the second area set based on the second relationship and the second index information. The first communication device may obtain the second relationship by referring to the above-mentioned content of obtaining the second relationship.

[0443] The following uses an example in which the second relationship may be that the indexes of two adjacent areas are continuous and increasing to introduce the manner in which the first communication device determines the second area set.

[0444] For example, the second index information indicates the start index and the end index of the area in the second area set, and the first communication device may directly determine the second area set based on the second index information.

[0445] Alternatively, the second index information includes a start index or an end index of the area in the second area set, and the first communication device may determine the second area set based on the first index information and the number of areas in the second area set. The number of areas in the second area set may be preconfigured or predefined in the first communication device.

[0446] Alternatively, the second index information indicates the start index of the area in the second area set, and the first communication device may determine the second area set based on the second index information and the end index of the area in the second area set. The end index of the area in the second area set may be preconfigured or predefined in the first communication device.

[0447] Alternatively, the second index information indicates the end index of the area in the second area set, and the first communication device can determine the second area set based on the second index information and the start index of the area in the second area set. The start index of the area in the second area set can be preconfigured or predefined in the first communication device.

[0448] In a possible implementation, the first communication device may determine that all areas in the first cell except the second area set are the first area set, or determine that all areas in the first cell except the second area set and the third area set are the first area set.

[0449] C2-3. The indication information includes the first quantity information shown in A2-3.

[0450] For example, in the case where the indication information indicates the number of areas in the first area set, the first communication device may determine the first area set based on the first quantity information, the first relationship, and the starting index of the areas in the first area set. The starting index of the areas in the first area set and the first relationship may be preconfigured or predefined in the second communication device and the first communication device, or may be indicated to the first communication device by the second communication device, or may be determined by negotiation between the first communication device and the second communication device. The content of the first relationship may refer to the content of the first relationship in the previous text, and will not be listed here.

[0451] Alternatively, the first communication device may determine the first area set based on the first quantity information, the first relationship, and the end index of the area in the first area set. The end index of the area in the first area set may be preconfigured or predefined in the second communication device and the first communication device, or may be indicated to the first communication device by the second communication device, or may be determined by negotiation between the first communication device and the second communication device. The content of the first relationship may refer to the content of the first relationship in the previous text, and will not be listed here.

[0452] The following uses an example in which the first relationship may be that the indexes of two adjacent areas are continuous and increasing to introduce the manner in which the first communication device determines the first area set.

[0453] For example, the first communication device may determine the first area set based on the first quantity information and the start index of the area in the first area set. Alternatively, the first communication device may determine the first area set based on the first quantity information and the end index of the area in the first area set.

[0454] C2-4. The indication information includes the second quantity information shown in A2-4.

[0455] For example, when the indication information indicates the number of regions in the second region set, the first communication device may determine the second region set based on the second number information, the second relationship, and the start index of the region in the second region set.

[0456] Optionally, the starting index of the area in the second area set and the second relationship may be preconfigured or predefined in the second communication device and the first communication device, or may be indicated by the second communication device to the first communication device, or may be determined by negotiation between the first communication device and the second communication device. The content of the second relationship may refer to the content of the first relationship mentioned above, and will not be listed here.

[0457] Alternatively, the first communication device may determine the first area set based on the second quantity information, the second relationship, and an end index of the area in the second area set.

[0458] The starting index of the area in the second area set and the second relationship may be preconfigured or predefined in the second communication device and the first communication device, or may be indicated by the second communication device to the first communication device, or may be determined by negotiation between the first communication device and the second communication device. The content of the second relationship may refer to the content of the first relationship mentioned above, and will not be listed here.

[0459] The following uses an example in which the second relationship may be that the indexes of two adjacent areas are continuous and increasing to introduce the manner in which the first communication device determines the second area set.

[0460] For example, the first communication device may determine the second area set based on the second quantity information and the start index of the area in the second area set. Alternatively, the first communication device may determine the second area set based on the second quantity information and the end index of the area in the second area set.

[0461] When the indication information includes at least two items of A2-1 to A2-4, the first communication device may also determine the first area set and / or the second area set in combination with the method corresponding to at least two items of A2-1 to A2-4 in the previous C2-1 to C2-4, which is introduced below with the contents shown in C2-5 to C2-13.

[0462] C2-5, the indication information includes the first index information shown in A2-1 and the first quantity information shown in A2-3 (or the indication information can be regarded as the information shown in A2-5), then the first communication device can directly determine the first area set based on the first index information and the first quantity information. Optionally, the first communication device can also determine the second area set.

[0463] C2-6, the indication information includes the second index information shown in A2-2 and the second quantity information shown in A2-4 (or the indication information can be regarded as the information shown in A2-6), then the first communication device can directly determine the second area set based on the second index information and the second quantity information. Optionally, the first communication device can also determine the first area set.

[0464] C2-7, the indication information includes the first index information shown in A2-1 and the second quantity information shown in A2-4 (or the indication information can be regarded as the information shown in A2-7).

[0465] In this case, the first communication device may refer to the content of the previous C2-1 to determine the first area set, and refer to the content of the previous C2-3 to determine the second area set, and the repeated parts are not listed again.

[0466] C2-8, the indication information includes the second index information shown in A2-2 and the first quantity information shown in A2-3 (or the indication information can be regarded as the information shown in A2-8).

[0467] In this case, the first communication device may refer to the content of the previous C2-2 to determine the second area set, and refer to the content of the previous C2-3 to determine the first area set, and the repeated parts are not listed again.

[0468] C2-9, the indication information includes the contents of A2-1 and A2-2, that is, the indication information includes the first index information and the second index information (or the indication information can be regarded as the information shown in A2-9).

[0469] In this case, the first communication device may refer to the content of the previous C2-1 to determine the first area set, and refer to the content of the previous C2-2 to determine the second area set, and the repeated parts are not listed again.

[0470] C2-10, the indication information includes the contents of A2-3 and A2-4, that is, the indication information includes the first quantity information and the second quantity information (or the indication information can be regarded as the information shown in A2-10).

[0471] In this case, the first communication device may refer to the content of the previous C2-3 to determine the first area set, and refer to the content of the previous C2-4 to determine the second area set, and the repeated parts are not listed again.

[0472] C2-11, the indication information includes the contents of A2-1, A2-3 and A2-4, that is, the indication information includes the first index information, the first quantity information and the second quantity information (or the indication information can be regarded as the information shown in A2-11).

[0473] In this case, the first communication device can determine the first area set based on the first index information and the first quantity information, and determine the second area set with reference to the content of C2-4 above, and the repeated parts are not listed again.

[0474] C2-12, the indication information includes the contents of A2-2, A2-3 and A2-4, that is, the indication information includes the second index information, the first quantity information and the second quantity information (or the indication information can be regarded as the information shown in A2-12).

[0475] In this case, the first communication device may determine the second area set based on the second index information and the second quantity information, and determine the first area set with reference to the content of C2-3 above, and the repeated parts are not listed again.

[0476] C2-13, the indication information includes the contents of A2-1 to A2-4, that is, the indication information includes the first index information, the second index information, the first quantity information and the second quantity information (or the indication information can be regarded as the information shown in A2-13).

[0477] In this case, the first communication device may determine the first area set based on the first index information and the first quantity information, and determine the second area set based on the second index information and the second quantity information.

[0478] C3: Use method A3 to indicate the information of the first area set and / or the information of the second area set.

[0479] For example, the indication information indicates the index information of the area in the first area set, then the first communication device can determine the first area set based on the information of the first area set, which is equivalent to determining the area for sending the first system information. Optionally, the first communication device can also determine the second area set based on the first area set.

[0480] Alternatively, the indication information indicates information of an index of an area in the second area set, and the first communication device may determine the second area set based on the information of the index of the area in the second area set, which is equivalent to determining an area where the first system information is not sent. Optionally, the first communication device may also determine the first area set based on the second area set.

[0481] Alternatively, the indication information indicates information about the indexes of the areas in the first area set and information about the indexes of the areas in the second area set, then the first communication device can determine the first area set and the second area set based on the information about the indexes of the areas in the first area set and information about the indexes of the areas in the second area set.

[0482] In a possible implementation, if the first area set or the second area set includes only the first area, the first communication device may determine whether to send the first system information or not to send the first system information in the first area based on the indication information.

[0483] Optionally, S1202 or the first communication device determines the first area set and / or the second area set, which may include / be replaced by: the first communication device determines whether the second communication device sends the first system information or / and does not send the first system information in an area (e.g., the first area), or the first communication device receives the first system information or / and does not receive the first system information in an area (e.g., the first area), or an area (e.g., the first area) belongs to / is the first area set and / or the second area set.

[0484] In a possible implementation, if the indication information further includes information about the fourth area set and / or information about the fifth area set, the first communication device may determine the fourth area set and the fifth area set. Optionally, the manner of determining the fourth area set and the manner of determining the fifth area set may refer to the manner in which the first communication device determines the first area set and / or the second area set, which will not be listed here.

[0485] Optionally, S1203: The first communication device obtains SIB1 (or SIB1bis).

[0486] For example, the first communication device acquiring SIB1 (or SIB1bis) may include / be replaced by: the first communication device receiving SIB1 (or SIB1bis). For example, correspondingly, the second communication device sends SIB1 (or SIB1bis).

[0487] For example, the second communication device may send SIB1 (or SIB1bis) by broadcasting, or may send SIB1 (or SIB1bis) to the first communication device by dedicated signaling.

[0488] Optionally, the logical channel, transport channel and physical channel corresponding to SIB1 (or SIB1bis) may be respectively: broadcast control channel (BCCH), downlink shared channel (DL-SCH) and physical downlink control channel (PDSCH).

[0489] Optionally, S1203 may include: S1203a and / or S1203b. For example, S1203a is the second communication device sending SIB1 (or SIB1bis) in the first area set (or may be referred to as SIB1 (or SIB1bis) corresponding to the first area set). For example, S1203b is the SIB1 sent by the second communication device in the second area set (or may be referred to as SIB1 (or SIB1bis) corresponding to the second area set).

[0490] Optionally, the first communication device obtains SIB1 (or SIB1bis), which may include / be replaced by: the first communication device obtains scheduling information of the first system information.

[0491] For example, the scheduling information of the first system information may be included in SIB1 (or SIB1bis). For example, the scheduling information of the first system information may also include / be replaced by: the scheduling information of the SI message corresponding to the first system information.

[0492] Exemplarily, the scheduling information of the first system information may include any one or more of the following: SI window length, information of one or more SI messages, or information of one or more SI messages corresponding to the first system information, and information of the system information area to which the cell belongs (for example, the ID of the system information area to which the cell belongs).

[0493] For example, the information of an SI message may include any one or more of the following: SIB mapping information, SI message period, SI message broadcast status, and SI message window position.

[0494] Exemplarily, the SIB mapping information may include / be replaced by any one or more of the following: information about one or more SIBs (or first system information) contained in the SI message (or, information about one or more SIBs (or first system information) mapped to the SI message), a value tag of the SIB (or, each SIB, or, each SIB included in the SI message), an indication of whether the SIB (or, each SIB, or, each SIB included in the SI message) is regionally valid.

[0495] In a possible design, the first area set and the second area set correspond to the same SIB1 (or SIB1bis), or the SIB1 (or SIB1bis) corresponding to the first area set and the second area set are the same.

[0496] Optionally, the first area set and the second area set corresponding to the same SIB1 (or SIB1bis) may include / be understood as: within a period of time (for example, a SIB1 / SIB1bis period or a modification period), the SIB1 (or SIB1bis) corresponding to the first area set and the second area set are the same. Optionally, the period of SIB1bis is 640ms, or 1280ms, or an integer multiple of 640ms, or other values. Optionally, the period of SIB1bis is greater than or equal to 640ms.

[0497] For example, the SIB1 (or SIB1bis) corresponding to the first area set is the same as the SIB1 (or SIB1bis) corresponding to the second area set. For example, the content of the SIB1 (or SIB1bis) corresponding to the first area set is the same as the content of the SIB1 (or SIB1bis) corresponding to the second area set. For example, the SIB1 (or SIB1bis) corresponding to the first area set and the SIB1 (or SIB1bis) corresponding to the second area set both include scheduling information of the first system information (or, the same scheduling information of the first system information). For example, the information items included in the SIB1 (or SIB1bis) corresponding to the first area set are the same as the information items included in the SIB1 (or SIB1bis) corresponding to the second area set.

[0498] It should be understood that, in different time periods, the SIB1 (or SIB1bis) corresponding to the first area set and the second area set may be the same or different, and there is no specific limitation on this.

[0499] In a possible implementation, the SIB1 (or SIB1bis) of the first cell includes / both include the scheduling information of the first system information. For example, the SIB1 (or SIB1bis) corresponding to the first area set and the second area set includes / both include the scheduling information of the first system information.

[0500] It should be noted that the present application does not limit whether the first communication device has obtained both the SIB1 (or SIB1bis) corresponding to the first regional set and the SIB1 (or SIB1bis) corresponding to the second regional set, and does not limit the relationship between the number of SIB1 (or SIB1bis) obtained in the first regional set and the number of SIB1 (or SIB1bis) obtained in the second regional set. Optionally, the first communication device may obtain one or more of the SIB1 (or SIB1bis) corresponding to the first regional set and the SIB1 (or SIB1bis) corresponding to the second regional set.

[0501] For example, if the indication information is carried in the SIB1 (or SIB1bis), then the first communication device obtains SIB1 (or SIB1bis), and thus obtains the indication information. In this case, S1201 and S1203 can be implemented in one step.

[0502] Alternatively, if the indication information is not carried in SIB1 (or SIB1bis), the execution order of S1201 and S1203 may be arbitrary, for example, S1201 may be executed first, then S1203, or S1201 and S1203 may be executed simultaneously, or S1203 may be executed first, then S1201. Of course, the execution order of S1202 and S1203 may also be arbitrary, for example, S1202 may be executed first, then S1203, or S1202 and S1203 may be executed simultaneously, or S1203 may be executed first, then S1202.

[0503] Optionally, S1204: the first communication device ignores scheduling information of the first system information in the second area set, and / or the first communication device does not receive the first system information in the second area set.

[0504] Optionally, the second communication device does not send the first system information in the second area set.

[0505] For example, the first communication device determines the first area set or the second area set, and can determine that the second communication device will not send the first system information in the second area set, but the SIB1 (or SIB1bis) obtained by the first communication device (the SIB1 (or SIB1bis) received in the first area set (such as the SIB1 (or SIB1bis) corresponding to the first area set) and / or the SIB1 (or SIB1bis) received in the second area set (such as the SIB1 (or SIB1bis) corresponding to the second area set)) includes the scheduling information of the first system information. In this case, the first communication device can ignore the scheduling information of the first system information.

[0506] For example, ignoring the scheduling information of the first system information may be / include / replaced with any one or more of the following: not decoding the scheduling information of the first system information in SIB1 (or SIB1bis); discarding the scheduling information of the first system information; not monitoring the first system information; after decoding the scheduling information of the first system information in SIB1 (or SIB1bis), discarding the scheduling information of the first system information, or, after decoding the scheduling information of the first system information in SIB1 (or SIB1bis), not monitoring the first system information.

[0507] Alternatively, after the first communication device enters the second area set, it does not need to monitor the first system information.

[0508] Exemplarily, not monitoring the first system information may include / be replaced by: not monitoring the first system information according to the scheduling information of the first system information; not monitoring the system information / first system information / DCI / SI-RNTI scrambled DCI corresponding to the first system information in the SI window corresponding to the first system information. For example, not monitoring may include / be replaced by: not receiving, or, not obtaining. For example, not monitoring may be understood as not performing the monitoring action.

[0509] S1205: The first communication device receives first system information in the first area set. S1205 is an optional step. Fig.12 Indicated by dotted line.

[0510] Exemplarily, the second communication device may broadcast the first system information in the first area set in a broadcast manner. The first system information in S1205 may include / be replaced by: the second system information, or, one or more system information or SIB or SI message in the first system information. For example, the second system information may include: one or more system information or SIB or SI message in the first system information. Receiving may be understood as the action of performing receiving, but it is not limited to whether it is received. Receiving may include / be replaced by: monitoring. For example, receiving may be understood as the action of performing receiving, but it is not limited to whether it is received, nor is it limited to whether the first communication device can correctly decode the first system information.

[0511] For example, monitoring the first system information may include / be replaced by: monitoring the first system information according to the scheduling information of the first system information; monitoring the system information / first system information / DCI / SI-RNTI-encrypted DCI corresponding to the first system information in the SI window corresponding to the first system information.

[0512] Optionally, S1205, or, the first communication device receives the first system information in the first area set, may include / be replaced by: in the first area set, for the first SSB set (or, one or more SSBs in the first SSB set), the first communication device receives the first system information.

[0513] Exemplarily, if the first communication device is located in the first area set, the first communication device receives first system information for the SSB corresponding to the first area set (or, one or more SSBs in the SSB corresponding to the first area set) or the first SSB set (or, one or more SSBs in the first SSB set).

[0514] In a possible implementation, when the first condition is met, the first communication device receives (or starts to receive) the first system information in (or starts to receive in) the first area set.

[0515] For example, satisfying the first condition may include / be replaced by: if the first condition is satisfied, determining that the first condition is satisfied, or, the first communication device satisfies the first condition, or, the first communication device determines that the first condition is satisfied.

[0516] The implementation of the first condition is introduced below. For example, the first condition may include any one of the following items D1 to D6.

[0517] D1. The first communication device fails to obtain the first system information in the first cell.

[0518] For example, not acquired may include / be understood as: the acquisition action is performed but not acquired, or, the acquisition action is not performed so it is not acquired. For example, not acquired may include / be replaced by: not acquired, not acquired yet, or, not acquired yet.

[0519] Exemplarily, the first communication device was previously located in an area in the second area set, and then moved to an area in the first area set, indicating that the first communication device did not obtain the first system information in the first cell, then the first communication device can start to obtain the first system information.

[0520] D2. The first communication device determines that the first system information changes. The second communication device determines that the first system information changes, for example, may include / replace with: the scheduling information of the first system information included in SIB1 (or SIB1bis) (for example, the value tag corresponding to the first system information) changes. For example, the value tag corresponding to the first system information may include / replace with: the value tag of the SIB (one or more SIBs) in the first system information.

[0521] For example, when the first communication device is located in an area in the second area set, the first communication device determines that the first system information changes. For example, the first communication device may receive the second information and / or SIB1 (or SIB1bis) in an area in the second area set to determine that the first system information changes. Alternatively, the first communication device receives the second information and / or SIB1 (or SIB1bis) in the first area set to determine that the first system information changes. In this case, it can be considered that the first communication device is located in the first area set before and after the first system information changes.

[0522] For example, the first communication device determines that the first system information changes, which may include: the first communication device acquires the second information, and the first communication device acquires SIB1 (or SIB1bis), and the first communication device determines that the first system information changes according to SIB1 (or SIB1bis). For example, the second information indicates a system information change, and the second information may be, for example, an SI change indication.

[0523] For example, the second communication device may send the second information to the first communication device, and the first communication device determines that the system information has changed after receiving the second information. Optionally, the first communication device re-receives SIB1 (or SIB1bis), thereby determining that the first system information has changed according to SIB1 (or SIB1bis).

[0524] D3. The first communication device does not obtain the first system information in the first cell, and determines that the system information has changed.

[0525] D4. The first communication device does not have a valid version of the first system information.

[0526] For example, the valid version of the first system information that the first communication device does not have may include / be replaced by any one of D1 to D3.

[0527] D5. The first communication device requires first system information.

[0528] D6. The first communication device enters an area in the first area set, or the first communication device is located in an area in the first area set.

[0529] In a possible implementation manner, the first communication device may receive the first system information when it is determined that the first condition is satisfied.

[0530] Exemplarily, if the first communication device determines that it has not received the first system information in the first cell before, and after entering the area in the first area set (which can be regarded as the area where the first system information is sent), the first communication device can start to obtain the first system information. Alternatively, if the first communication device is in the first cell and receives the second information, after the first communication device updates SIB1 (or SIB1bis), it determines that the first system information has changed, thereby receiving the first system information. Alternatively, the first communication device is currently located in an area in the second area set (which can be regarded as an area where the first system information is not sent), and the first communication device can receive the first system information until the first communication device enters the area in the first area set. Alternatively, if the first communication device is currently located in an area in the first area set, the first communication device can directly obtain the first system information.

[0531] In another possible implementation manner, the first communication device may receive the first system information after determining the first area set.

[0532] Exemplarily, after the first communication device obtains SIB1 (or SIB1bis) of the first cell, if there is no valid version of one or more SIBs, and these one or more SIBs / system information are associated with or belong to the first system information or indication information, the first communication device does not start to obtain these one or more SIBs / system information (or, SI message corresponding to the SIB / system information) until it enters an area in the first area set.

[0533] Alternatively, after the first communication device obtains SIB1 (or SIB1bis) of the first cell, if there is no valid version of one or more SIBs, and these one or more SIBs / system information are associated with or belong to the first system information or indication information, and if the broadcast status of these one or more SIBs / system information is broadcast, the first communication device does not start to obtain these one or more SIBs / system information (or, SI message corresponding to the SIB / system information) until it enters the area in the first area set.

[0534] Optionally, the present application may also include: after the first communication device obtains SIB1 (or SIB1bis) of the first cell, if there is no valid version of one or more SIBs, and these one or more SIBs / system information are not associated with the first system information or indication information or do not belong to the first system information, the first communication device can start to obtain these one or more SIBs / system information (or, SI message corresponding to the SIB / system information).

[0535] For example, after the first communication device obtains SIB1 (or SIB1bis) of the first cell, if there is no valid version of one or more SIBs, and these one or more SIBs / system information are not associated with the first system information or indication information or do not belong to the first system information, and if the broadcast status of these one or more SIBs / system information is broadcast, then the first communication device can start obtaining these one or more SIBs / system information (or, SI message corresponding to the SIB / system information) until entering the area in the first area set.

[0536] Optionally, the present application may also include: after the first communication device obtains SIB1 (or SIB1bis) of the first cell, if there is no valid version of one or more SIBs, and these one or more SIBs / system information are associated with or belong to the first system information or indication information, the first communication device does not start requesting (or, requesting from the second communication device) these one or more SIBs / system information (or, SImessage corresponding to the SIB / system information) until it enters the area in the first area set.

[0537] For example, after the first communication device obtains SIB1 (or SIB1bis) of the first cell, if there is no valid version of one or more SIBs, and these one or more SIBs / system information are associated with the first system information or indication information or belong to the first system information, and if the broadcast status of these one or more SIBs / system information is not broadcast, the first communication device will not start requesting (or requesting from the second communication device) these one or more SIBs / system information (or, SI message corresponding to the SIB / system information) until it enters the area in the first area set.

[0538] Optionally, the present application may also include: after the first communication device obtains SIB1 (or SIB1bis) of the first cell, if there is no valid version of one or more SIBs, and these one or more SIBs / system information are not associated with the first system information or indication information or do not belong to the first system information, then the first communication device may start requesting (or, requesting from the second communication device) these one or more SIBs / system information (or, SI message corresponding to the SIB / system information).

[0539] For example, after the first communication device obtains SIB1 (or SIB1bis) of the first cell, if there is no valid version of one or more SIBs, and these one or more SIBs / system information are not associated with the first system information or indication information or do not belong to the first system information, and if the broadcast status of these one or more SIBs / system information is not broadcast, the first communication device can start requesting (or requesting from the second communication device) these one or more SIBs / system information (or, SI message corresponding to the SIB / system information) until entering the area in the first area set.

[0540] It should be understood that S1204 can be used as an independent embodiment and is not dependent on other steps.

[0541] It should be understood that S1205 can be used as an independent embodiment and is not dependent on other steps.

[0542] It should be understood that S1204 and S1205 can be used as independent embodiments and are not dependent on other steps.

[0543] It should be understood that the execution order of S1204 and S1205 may also be arbitrary, for example, executing S1204 first and then executing S1205. Or executing S1205 first and then executing S1204, etc., and the embodiments of the present application are not limited to this.

[0544] In an embodiment of the present application, the second communication device may notify the area where the first system information is sent and / or the area where the first system information is not sent (or, the edge area and / or the central area), so that the first communication device can monitor the first system information according to the specific situation of the second communication device sending the first system information, thereby avoiding invalid monitoring and achieving energy saving. In addition, in an embodiment of the present application, the second communication device may selectively send the first system information in some areas of a certain cell, which may also save the resource overhead and power consumption of the second communication device. In addition, the first communication device may selectively receive the first system information according to the area where the first communication device is currently located and whether the system information has changed, which is also conducive to saving the power consumption of the first communication device.

[0545] In order to save power consumption, an embodiment of the present application also provides a communication method, in which a first communication device can obtain indication information, where the indication information indicates information of a first SSB set and / or information of a second SSB set, the first SSB set is associated with the first system information, and the second SSB is not associated with the first system information. In this way, the first communication device can clearly identify which SSBs will send the first system information and which SSBs will not send the first system information. The first communication device may not monitor the first system information on the SSBs that do not send the first system information, thereby reducing invalid monitoring of the first communication device and saving power consumption.

[0546] Please refer to Fig.17 , which is a schematic diagram of a communication method provided in an embodiment of the present application.

[0547] S1701. The first communication device obtains instruction information.

[0548] The indication information may include / indicate information of the first SSB set and / or information of the second SSB set. For example, the first SSB set may include at least one SSB. For example, the second SSB set may include at least one SSB. In one possible implementation, the first SSB set may include / be an SSB associated with the first system information. Optionally, the second SSB set may include / be an SSB not associated with the first system information.

[0549] Optionally, the SSB associated with the first system information may include / be replaced by one or more of the following: an SSB corresponding to a PDCCH monitoring opportunity and an SSB associated with the first system information, an SSB corresponding to the SSB for sending the first system information, an SSB corresponding to the PDCCH monitoring opportunity for receiving the first system information, an SSB corresponding to the SSB for sending the first system information, an SSB corresponding to the PDCCH monitoring opportunity for receiving the first system information, an SSB corresponding to the SSB for sending the first system information, an SSB corresponding to the PDCCH monitoring opportunity for receiving the first system information, an SSB corresponding to the SSB for sending the first system information, an SSB corresponding to the PDCCH monitoring opportunity for the SSB for receiving the first system information, an SSB corresponding to the SSB for sending the first system information, an SSB corresponding to the PDCCH monitoring opportunity associated with sending the first system information, an SSB corresponding to the PDCCH monitoring opportunity associated with the existence of the first system information, an SSB for sending the first system information, an SSB for receiving the first system information, an SSB for sending the first system information, an SSB for receiving the first system information, an SSB for sending the first system information, an SSB for receiving the first system information, an SSB for sending the first system information, an SSB for receiving the first system information, an SSB for sending the first system information, an SSB for the existence of the first system information, an SSB associated with sending the first system information, or an SSB associated with the existence of the first system information. It should be understood that the SSB used to send the first system information does not mean that the SSB includes the first system information, but means that the first system information is sent on a physical downlink control channel (PDCCH) monitoring occasion corresponding to the SSB, or the first system information is sent on an area corresponding to the SSB. Similarly, the SSB used to receive the first system information does not mean that the SSB includes the first system information, but means that the first system information is received on a PDCCH monitoring occasion corresponding to the SSB, or the first system information is received on an area corresponding to the SSB.

[0550] For example, the PDCCH monitoring occasions for the SI message are numbered sequentially starting from 1 in the SI window. For example, the [x*N+K]th PDCCH monitoring occasion for the SI message in the SI window corresponds to the Kth SSB (or transmitted SSB). For example, x=0, 1, ...X-1. For example, K=1, 2, ...N. For example, N is the number of SSBs (or transmitted SSBs) or the number of SSBs actually transmitted determined according to ssb-PositionsInBurst in SIB1. For example, X is equal to CEIL (the number of PDCCH monitoring occasions in the SI window / N).

[0551] For example, the SSB not associated with the first system information may include / be replaced by one or more of the following: an SSB whose PDCCH monitoring opportunity corresponding to the SSB is not associated with the first system information, an SSB whose PDCCH monitoring opportunity corresponding to the SSB is not used to send the first system information, an SSB whose PDCCH monitoring opportunity corresponding to the SSB is not used to receive the first system information, an SSB whose PDCCH monitoring opportunity corresponding to the SSB is not used to send the first system information, an SSB whose PDCCH monitoring opportunity corresponding to the SSB is not used to receive the first system information, and an SSB whose PDCCH monitoring opportunity corresponding to the SSB is not used to send the first system information. B, the SSB corresponding to the PDCCH monitoring opportunity where the first system information does not exist, the SSB corresponding to the PDCCH monitoring opportunity associated with not sending the first system information, the SSB corresponding to the PDCCH monitoring opportunity associated with not sending the first system information, the SSB not used to send the first system information, the SSB not used to receive the first system information, the SSB not used for sending the first system information, the SSB not used for receiving the first system information, the SSB not sending the first system information, the SSB not used for sending the first system information, the SSB not used for receiving the first system information, the SSB not sending the first system information, the SSB where the first system information does not exist, the SSB associated with not sending the first system information, or the SSB associated with not having the first system information.

[0552] In one possible design, the first SSB set may include / be / be replaced by the SSB for the second communication device to send the first system information. Or, the first SSB set may include / be the SSB for the first communication device to receive the first system information. For example, the SSB for sending the first system information may include / be replaced by: the SSB for the second communication device to send the first system information. For example, the SSB for receiving the first system information may include / be replaced by: the SSB for the first communication device to receive the first system information.

[0553] For example, the second communication device sends / may send the first system information in the first SSB set, or for the first SSB set, the second communication device sends / may send the first system information, or the first communication device receives / may receive the first system information in the first SSB set, or for the first SSB set, the first communication device receives / may receive the first system information. For example, the second communication device sends / may send the first system information in the first SSB set, which can be understood as the second communication device sending or may send the first system information at the PDCCH monitoring opportunity corresponding to the first SSB set, or sending or may send the first system information on the area / beam corresponding to the first SSB set.

[0554] For example, for the first SSB set, it may include / replace with: a PDCCH monitoring occasion corresponding to the first SSB set. The PDCCH monitoring occasion may include / replace with: a PDCCH monitoring occasion. For example, the first SSB set may include / replace with: an SSB in the first SSB set, or, on / in / in the first SSB set, or, on / in / in the SSB in the first SSB set.

[0555] In one possible design, the second SSB set may include / be / be replaced by an SSB to which the second communication device does not send the first system information. Or, the second SSB set may include / be an SSB to which the first communication device does not receive the first system information. The second SSB set may include / be an SSB to which the second communication device does not send the first system information. For example, an SSB to which the first system information is not sent may include / be replaced by: an SSB to which the second communication device does not send the first system information. For example, an SSB to which the first system information is not received may include / be replaced by: an SSB to which the first communication device does not receive the first system information.

[0556] For example, the second communication device does not send / cannot send the first system information in the second SSB set, or the second communication device does not send / cannot send the first system information for the second SSB set, or the first communication device does not receive / cannot receive the first system information in the second SSB set, or the first communication device does not receive / cannot receive the first system information for the second SSB set. For example, the second communication device does not send / cannot send the first system information in the second SSB set, which can be understood as the second communication device does not send or cannot send the first system information at the PDCCH monitoring opportunity corresponding to the second SSB set, or does not send or cannot send the first system information in the area / beam corresponding to the second SSB set.

[0557] For example, for the second SSB set, it can include / replace with: the PDCCH monitoring opportunity corresponding to the second SSB set. For example, the second SSB set can include / replace with: the SSB in the second SSB set, or, on / inside / in the second SSB set, or, on / inside / in the SSB in the second SSB set.

[0558] In one possible implementation, the first SSB set may include / be an edge SSB, and / or the second SSB set may include / be a center SSB.

[0559] The edge SSB may include / be replaced by: a non-center SSB, and / or an edge SSB of a cell (eg, a first cell). Similarly, the center SSB may include / be replaced by: a non-edge SSB, and / or a center SSB of a cell (eg, a first cell).

[0560] In this case, the second communication device sends the first system information in the edge SSB, or the second communication device is to send / may send / will send the first system information on / in / in the edge SSB. Optionally, the second communication device sends the first system information in the edge SSB, and the first system information may be sent in the edge SSB in an on-demand manner. The content of the on-demand method can be referred to in the previous text, and the repeated parts are not listed again.

[0561] For example, for the edge SSB, the second communication device sends / may send the first system information, or the second communication device does not send the first system information in the center SSB, or the second communication device does not send / may not send the first system information on / in / in the center SSB, or the second communication device is going to send / may send / will send the first system information on / in / in the first SSB set, or for the center SSB, the second communication device does not send / may not send the first system information, or the second communication device sends the first system information in the first SSB set. For example, the second communication device may send the first system information in the first SSB set in an on-demand manner.

[0562] For example, for edge SSB, it may include / replace with: PDCCH monitoring opportunity corresponding to edge SSB. For center SSB, it may include / replace with: PDCCH monitoring opportunity corresponding to center SSB.

[0563] Optionally, the first SSB set belongs to the first cell. Optionally, the second SSB set belongs to the first cell.

[0564] Optionally, in a possible design, the first SSB set is associated with the first cell. Optionally, the second SSB set is associated with the first cell.

[0565] For example, the first SSB set is associated with the first cell includes the first SSB set belongs to the first cell. For example, the second SSB set is associated with the first cell includes the second SSB set belongs to the first cell.

[0566] Optionally, the first cell may include / may be associated with X SSBs. For example, X is a positive integer. For example, X SSBs constitute the first cell, in other words, X SSBs constitute the complete first cell. Exemplarily, the first SSB set may include / belong to a portion of the X SSBs or one or more SSBs. Exemplarily, the second SSB set may include / belong to a portion of the X SSBs or one or more SSBs.

[0567] For example, the first SSB set may include / be a plurality of continuous SSBs among the X SSBs, or may include / be a plurality of discontinuous SSBs among the X SSBs, and this embodiment of the present application does not specifically limit this. For example, the second SSB set may include / be a plurality of continuous SSBs among the X SSBs, or may include a plurality of discontinuous SSBs among the X SSBs, and this embodiment of the present application does not specifically limit this.

[0568] For example, the X SSBs may be configured by the second communication device, for example, may be configured by the second communication device through an RRC message; or may be pre-configured, or may be defined in the protocol, which is not limited here.

[0569] In one possible design, the X SSBs may only / all include / belong to the first SSB set. In another possible design, the X SSBs may only / all include / belong to the second SSB set.

[0570] In another possible design, the X SSBs include / only include one SSB set (such as the first SSB set or the second SSB set).

[0571] Optionally, the X SSBs may only include / contain / belong to the first SSB set and the second SSB set. For example, a portion of the X SSBs (e.g., M SSBs) include / belong to the first SSB set, and another portion of the X SSBs (e.g., (XM) SSBs include / belong to the second SSB set. For example, M is a positive integer.

[0572] In another possible design, the X SSBs may include / belong to the first SSB set, the second SSB set, and the third SSB set. For example, a portion of the X SSBs (e.g., M SSBs) include / belong to the first SSB set, a portion of the X SSBs (e.g., P SSBs) include / belong to the second SSB set, and another portion of the X SSBs (e.g., Y or (XMP) SSBs) include / belong to the third SSB set. The third SSB set may include at least one SSB. Y and P are both positive integers.

[0573] It should be understood that the third SSB set may be an SSB not associated with the first system information, or may be an SSB associated with the first system information, without specific limitation. Optionally, the third SSB set may be an edge SSB, or may be a center SSB, or may include both edge SSB and center SSB, without specific limitation.

[0574] Optionally, the third SSB set may be preconfigured or predefined, without specific limitation.

[0575] Optionally, the first SSB set may belong to / be located in the center SSB of the first cell.

[0576] Optionally, the second SSB set may belong to / be located at the edge SSB of the first cell.

[0577] For example, the information of the first SSB set may include / indicate / be replaced by any one or more of the following: the first SSB set; sending first system information for the first SSB set (for example, for the first SSB set, the second communication device sends the first system information); or, receiving first system information for the first SSB set (for example, for the first SSB set, the first communication device receives the first system information).

[0578] For example, the information of the second SSB set may include / indicate / be replaced by any one or more of the following: the second SSB set; not sending the first system information for the second SSB set (for example, the second communication device does not send the first system information for the first SSB set); or, not receiving the first system information for the first SSB set (for example, the first communication device does not receive the first system information for the first SSB set).

[0579] Optionally, the indication information may include / indicate / be replaced by any one or more of the following: sending first system information for the first SSB set (for example, the second communication device sends the first system information for the first SSB set); receiving first system information for the first SSB set (for example, the first communication device receives the first system information for the first SSB set); not sending first system information for the second SSB set (for example, the second communication device does not send the first system information for the first SSB set); not receiving first system information for the first SSB set (for example, the first communication device does not receive the first system information for the first SSB set); or, one or more SSBs (for example, the first SSB) belong to / are the first SSB set and / or the second SSB set.

[0580] In one possible implementation, the first SSB set may include one SSB. For example, the first SSB set may include / be replaced by: a first SSB. And / or, the second SSB set may include one SSB. For example, the second SSB set may include / be replaced by: a first SSB.

[0581] Optionally, the indication information may include / indicate information of the first SSB set and / or information of the second SSB set in at least one of the following E1, E2 and E3, which are introduced below respectively.

[0582] E1. The indication information indicates the information of the first SSB set and / or the information of the second SSB set in the form of a bit map.

[0583] Exemplarily, the indication information includes N bits, where N is a positive integer. Part or all of the N bits can be used to carry information of the first SSB set and / or information of the first SSB set. N can be equal to the number of SSBs included / associated with the first cell, for example, X. For example, N can also be the number of SSBs included in the first SSB set, for example, M. For example, N can also be the number of SSBs included in the second SSB set, for example, P. For example, N can also be the total number of SSBs included in the first SSB set and the second SSB set, for example, M+P or XY. For example, N is 128 or 256 or 32 or 64.

[0584] Optionally, Y bits out of N bits can be used as reserved bits, or Y bits out of N bits can be used to carry other information (other information is information other than indication information), or Y bits out of N bits can be ignored or their specific values ​​can be ignored, and there is no specific limitation on this.

[0585] The content of the N bits indicating the information of the first SSB set and / or the information of the second SSB set can be referred to in the previous text. Fig.12 The N bits discussed indicate the content of the information of the first area set and / or the information of the second area set, which will not be listed one by one here.

[0586] Optionally, when N is equal to the number of SSBs included in the first cell (for example, X), and the X SSBs also include a third SSB set, Y bits out of N bits may be used as reserved bits, or Y bits out of N bits may be used to carry other information (other information is information other than indication information), or Y bits out of N bits may be ignored or their specific values ​​may be ignored, and no specific limitation is made to this. For example, the first communication device / the second communication device ignores the values ​​of Y bits out of N bits or Y bits out of N bits.

[0587] Optionally, the positions of Y bits in the N bits and / or the value of Y may be configured by the second communication device, for example, may be configured by the second communication device through an RRC message; or may be pre-configured, or may be defined in the protocol, without limitation herein. Optionally, the Y bits in the N bits may be continuous or discontinuous, without limitation.

[0588] For example, N bits include 128 bits, and one bit (or each bit) among the 128 bits is used to carry information that an SSB (or the SSB corresponding to the one bit) belongs to the first SSB set or / and the second SSB set. Alternatively, N bits include 128 bits, and there are Y bits in the middle of the 128 bits, and one bit (or each bit) among the 128 bits except the Y bits is used to carry information that an SSB (or the SSB corresponding to the one bit) belongs to the first SSB set or / and the second SSB set.

[0589] For example, one bit among N bits (for example, any one bit, or any one bit except Y bits) is used to indicate that an SSB (or, the SSB corresponding to the one bit) is associated with the first system information or / or is not associated with the first system information, or, is used to indicate that an SSB (or, the SSB corresponding to the one bit) belongs to / is the first SSB set or / or the second SSB set. For example, the value of the first bit is the first value, indicating that the first SSB is associated with the first system information, or that the first SSB belongs to / is the first SSB set; the value of the first bit is the second value, indicating that the first SSB is not associated with the first system information, or that the first SSB belongs to / is the second SSB set. For example, the first value is 1 and the second value is 0; or, the first value is 0 and the second value is 1, and there is no limitation on this. Optionally, an SSB is, for example, the SSB where the first communication device is currently located or the strongest SSB corresponding to the current location of the first communication device. Optionally, the first bit is associated with the first SSB.

[0590] For example, the first bit of the N bits is used to indicate whether the first SSB is associated with the first system information or / or is not associated with the first system information, or to indicate that the first SSB belongs to / is the first SSB set or / or the second SSB set. For example, the first SSB can be any SSB in the first SSB set and the second SSB set.

[0591] For example, the value of the first bit is a first value, indicating that the first SSB is associated with the first system information, or indicating that the first SSB belongs to / is a first SSB set. The value of the first bit is a second value, indicating that the second communication device is not associated with the first system information in the first SSB, or indicating that the first SSB belongs to / is a second SSB set.

[0592] Exemplarily, one bit in the N bits is associated with one SSB. For example, different bits in the N bits are associated with different SSBs. For example, this application does not limit how bits in the N bits are associated with SSBs.

[0593] Optionally, the first bit at the N-bit position may be used to represent / determine the index of the first SSB.

[0594] In one possible design, the Fth bit from the leftmost / rightmost / lowest / highest bit among the N bits (or, starting from the leftmost / rightmost / lowest / highest bit) corresponds to the SSB indexed by F or corresponds to the SSB related to F (for example, the SSB indexed by F-1 or F+1).

[0595] Optionally, F is an integer, either a positive integer, or a non-negative integer.

[0596] For example, there are 4 SSBs in the first cell, and the indexes of the 4 SSBs are 0 to 3, respectively. The N bits are specifically 4 bits, and the 4 bits from left to right or from high to low correspond to: SSB with index 0, SSB with index 1, SSB with index 2 and SSB with index 3, respectively.

[0597] In another possible design, the Fth bit from the leftmost / rightmost / lowest / highest bit among the N bits (or, starting from the leftmost / rightmost / lowest / highest bit) corresponds to the Fth SSB whose index is from small to large or from large to small among the SSBs other than the third SSB set, or corresponds to the SSB related to F (for example, the F+1 or F-1th SSB whose index is from small to large or from large to small among the SSBs other than the third SSB set).

[0598] For example, there are 67 SSBs in the first cell, and the indexes of the 67 SSBs are 1 to 67, among which SSBs with indexes 2 to 64 belong to the third data set, and the N bits are specifically 4 bits. The 4 bits from left to right or from high to low correspond to: SSB with index 1, SSB with index 65, SSB with index 66 and SSB with index 67.

[0599] In one possible implementation, each / all of the N bits indicate that the corresponding SSB is associated with the first system information, or belongs to / is the first SSB set. For example, in this case, it can be regarded as N bits carrying information of the first SSB set. In this case, optionally, the N bits can be regarded as corresponding one-to-one to the first SSB set, in other words, each of the N bits corresponds to an SSB in the first SSB set.

[0600] In another possible implementation, each / all of the N bits indicate that the corresponding SSB is not associated with the first system information, or belongs to / is the second SSB set. For example, in this case, it can be regarded as N bits carrying information of the second SSB set. In this case, optionally, the N bits correspond one-to-one to the second SSB set, in other words, each of the N bits corresponds to an SSB in the second SSB set.

[0601] In another possible implementation, a portion of the N bits indicates that the corresponding SSB is associated with the first system information, or belongs to / is the first SSB set, and another portion of the N bits indicates that the corresponding SSB is not associated with the first system information, or belongs to / is the second SSB set. For example, in this case, it can be regarded as N bits carrying information of the first SSB set and information of the second SSB set. In this case, optionally, the N bits correspond one-to-one to the SSBs in the first SSB set and the second SSB set. In other words, each of the N bits corresponds to an SSB in the first SSB set and the second SSB set.

[0602] The indication information indicates the information of the first SSB set and / or the information of the second SSB set in the form of a bitmap. Fig.12 The indication information discussed indicates the information of the first area set and / or the information of the second area set in the form of a bit map, and the repeated parts are not listed again.

[0603] E2. The indication information indicates the number and / or index of SSBs in the first SSB set, or the number and / or index of SSBs in the second SSB set, or the number and / or index of SSBs in the first SSB set and the number and / or index of SSBs in the second SSB set.

[0604] Optionally, the indices of the SSBs in the first SSB set are consecutive.

[0605] In one possible design, the indexes of the SSB / two SSBs / two adjacent SSBs in the first SSB set satisfy the first relationship. For example, the first relationship may be that the indexes of two SSBs / two adjacent SSBs are continuous and increasing, or the indexes of two SSBs / two adjacent SSBs are continuous and decreasing, or the indexes of two adjacent SSBs differ by a third value. For example, the first relationship indicates that the indexes of two SSBs / two adjacent SSBs are continuous, in which case the indexes of the SSBs in the first SSB set are continuous. For example, the third value is 1 or 2 or 3 or other values. Optionally, the first relationship may be configured by the second communication device, for example, it may be configured by the second communication device through an RRC message; or it may be pre-configured, or it may be defined in the protocol, which is not limited here.

[0606] Optionally, the indices of the SSBs in the second SSB set are consecutive.

[0607] In one possible design, the index of the SSB / two SSBs / two adjacent SSBs in the second SSB set satisfies the second relationship. For example, the second relationship may be that the indexes of two SSBs / two adjacent SSBs are continuous and increasing, or the indexes of two SSBs / two adjacent SSBs are continuous and decreasing, or the indexes of two SSBs / two adjacent SSBs differ by a fourth value. For example, the second relationship indicates that the indexes of two SSBs / two adjacent SSBs are continuous, in which case the indexes of the SSBs in the second SSB set are continuous. For example, the fourth value is 1 or 2 or 3 or other values. For example, the fourth value is the same as or different from the third value. Optionally, the second relationship may be configured by the second communication device, for example, it may be configured by the second communication device through an RRC message; or it may be pre-configured, or it may be defined in the protocol, which is not limited here.

[0608] For example, the indication information may indicate (or include) at least one item of information from E2-1 to E2-4.

[0609] E2-1, first index information. For example, the first index information indicates a start index and / or an end index of an SSB in a first SSB set. For example, the first index information may be considered as an example of information of a first SSB set. Or, for example, E2-1 may be considered as an example of information indicating (or including) a first SSB set.

[0610] For example, the first index information indicates a starting index or an ending index of an SSB in the first SSB set. Alternatively, the first index information indicates a starting index and an ending index of an SSB in the first SSB set.

[0611] In a possible implementation, the number of SSBs in the first SSB set may be preconfigured, or may be defined in the protocol, or may be fixed. Optionally, the number of SSBs in the first SSB set is 20 or other, and there is no limitation on this.

[0612] For example, the first index information indicates that the starting index of the SSB in the first SSB set is 0, and the number of SSBs in the first SSB set is 20, which means that the first SSB set includes SSBs with indexes from 0 to 19, or, SSBs with indexes from 0 to 19 are all SSBs associated with the first system information.

[0613] In another possible implementation, the starting index of the SSB in the first SSB set may be preconfigured, or defined in the protocol, or fixed.

[0614] Exemplarily, the starting index of the SSB in the first SSB set is 0 or 1 or other.

[0615] For example, the first index information indicates that the end index of the SSB in the first SSB set is 19, and the start index of the SSB in the first SSB set is 0, which means that the first SSB set includes SSBs with indexes from 0 to 19, or, SSBs with indexes from 0 to 19 are all SSBs associated with the first system information.

[0616] In another possible implementation, the end index of the SSB in the first SSB set may be preconfigured, or defined in the protocol, or fixed.

[0617] Exemplarily, the starting index of the SSB in the first SSB set is 255 or 256 or 127 or 128 or 32 or 31 or 64 or 63 or others.

[0618] For example, the first index information indicates that the starting index of the SSB in the first SSB set is 236, and the ending index of the SSB in the first SSB set is 255, which means that the first SSB set includes SSBs with indexes from 236 to 255, or that SSBs with indexes from 236 to 255 are all SSBs associated with the first system information.

[0619] E2-2, second index information. For example, the second index information indicates a start index and / or an end index of an SSB in a second SSB set. For example, the second index information may be considered as an example of information of a second SSB set. Or, for example, E2-2 may be considered as an example of information indicating (or including) a second SSB set.

[0620] For example, the second index information indicates the starting index or the ending index of the SSB in the second SSB set, or the second index information indicates the starting index and the ending index of the SSB in the second SSB set.

[0621] In a possible implementation, the number of SSBs in the second SSB set may be preconfigured, or may be defined in the protocol, or may be fixed. Optionally, the number of SSBs in the second SSB set is 20 or other, and there is no limitation on this.

[0622] For example, the first index information indicates that the end index of the SSB in the second SSB set is 255, and the number of SSBs in the second SSB set is 20, then it means that the second SSB set includes SSBs with indexes from 236 to 255, or, the SSBs with indexes from 236 to 255 are all SSBs that are not associated with the first system information.

[0623] In another possible implementation, the starting index of the SSB in the second SSB set may be preconfigured, or may be defined in the protocol, or may be fixed. Exemplarily, the starting index of the SSB in the second SSB set is 0 or 1 or other.

[0624] For example, the first index information indicates that the end index of the SSB in the second SSB set is 19, and the start index of the SSB in the second SSB set is 0, which means that the second SSB set includes SSBs with indexes from 0 to 19, or, SSBs with indexes from 0 to 19 are all SSBs that are not associated with the first system information.

[0625] In another possible implementation, the end index of the SSB in the second SSB set may be preconfigured, or defined in the protocol, or fixed.

[0626] Exemplarily, the starting index of the SSB in the second SSB set is 255 or 256 or 127 or 128 or 32 or 31 or 64 or 63 or others.

[0627] For example, the first index information indicates that the starting index of the SSB in the second SSB set is 236, and the ending index of the SSB in the second SSB set is 255, which means that the second SSB set includes SSBs with indexes from 236 to 255, or, the SSBs with indexes from 236 to 255 are all SSBs that are not associated with the first system information.

[0628] E2-3, first quantity information. For example, the first quantity information indicates the number of SSBs in the first SSB set. For example, the first quantity information can be regarded as an example of information of the first SSB set. Or, for example, E2-3 can be regarded as an example of information indicating (or including) the first SSB set.

[0629] In a possible implementation, the starting index of the SSB in the first SSB set may be preconfigured, or may be defined in the protocol, or may be fixed. Optionally, the starting index of the SSB in the first SSB set is 0 or 1 or other.

[0630] For example, the first quantity information indicates that the number of SSBs in the first SSB set is 20, and the starting index of the SSB in the first SSB set is 0, which means that the first SSB set includes SSBs with indexes from 0 to 19, or, SSBs with indexes from 0 to 19 are all SSBs associated with the first system information.

[0631] In another possible implementation, the end index of the SSB in the first SSB set may be preconfigured, or defined in the protocol, or fixed.

[0632] Exemplarily, the starting index of the SSB in the first SSB set is 255 or 256 or 127 or 128 or 32 or 31 or 64 or 63 or others.

[0633] For example, the first quantity information indicates that the number of SSBs in the first SSB set is 236, and the end index of the SSB in the first SSB set is 255, which means that the first SSB set includes SSBs with indexes from 236 to 255, or that SSBs with indexes from 236 to 255 are all SSBs associated with the first system information.

[0634] E2-4, second quantity information. For example, the first quantity information indicates the number of SSBs in the second SSB set. For example, the second quantity information can be regarded as an example of information of the second SSB set. Or, for example, E2-4 can be regarded as an example of information indicating (or including) the second SSB set.

[0635] In one possible implementation, the starting index of the SSB in the second SSB set may be preconfigured, or defined in the protocol, or fixed.

[0636] Exemplarily, the starting index of the SSB in the second SSB set is 0 or 1 or other.

[0637] For example, the first quantity information indicates that the number of SSBs in the second SSB set is 20, and the starting index of the SSB in the second SSB set is 0, which means that the second SSB set includes SSBs with indexes from 0 to 19, or, SSBs with indexes from 0 to 19 are all SSBs that are not associated with the first system information.

[0638] In another possible implementation, the end index of the SSB in the second SSB set may be preconfigured, or defined in the protocol, or fixed.

[0639] Exemplarily, the starting index of the SSB in the second SSB set is 255 or 256 or 127 or 128 or 32 or 31 or 64 or 63 or others.

[0640] For example, the first quantity information indicates that the number of SSBs in the second SSB set is 236, and the end index of the SSB in the second SSB set is 255, which means that the second SSB set includes SSBs with indexes from 236 to 255, or, the SSBs with indexes from 236 to 255 are all SSBs that are not associated with the first system information.

[0641] Optionally, the indication information includes at least two items of E2-1 to E2-4, which is described below in conjunction with the situations of E2-5 to E2-13. For example, the first communication device may correspondingly obtain information of the first SSB set and / or information of the second SSB set based on at least two items of E2-1 to E2-4.

[0642] For example, the indication information may indicate (or include): any one of E2-5 to E2-13.

[0643] E2-5, E2-1 and E2-3, namely, first index information and first quantity information. For example, the first index information and the first quantity information can be regarded as an example of information of the first SSB set. Or, for example, E2-5 can be regarded as an example of information indicating that the information indicates (or includes) the first SSB set.

[0644] For example, the first index information indicates that the starting index of the SSB in the first SSB set is 0, and the first quantity information indicates that the number of SSBs in the first SSB set is 21, which means that the first SSB set includes SSBs with indexes from 0 to 20, or, SSBs with indexes from 0 to 20 are all SSBs associated with the first system information.

[0645] E2-6, E2-2 and E2-4, namely, second index information and second quantity information. For example, the second index information and the second quantity information can be regarded as an example of information of the second SSB set. Or, for example, E2-6 can be regarded as an example of information indicating that the information indicates (or includes) the second SSB set.

[0646] For example, the second index information indicates that the starting index of the SSB in the second SSB set is 60, and the second quantity information indicates that the number of SSBs in the second SSB set is 20, which means that the second SSB set includes SSBs with indexes from 60 to 79, or, SSBs with indexes from 60 to 79 are all SSBs that are not associated with the first system information.

[0647] E2-7, E2-1 and E2-4, namely, the first index information and the second quantity information. For example, the first index information can be regarded as an example of information of the first SSB set, and the second quantity information can be regarded as an example of information of the second SSB set. Or, for example, E2-7 can be regarded as an example of indication information indicating (or including) information of the first SSB set and information of the second SSB set.

[0648] In one possible implementation, the number of SSBs in the first SSB set may be preconfigured, or defined in the protocol, or fixed.

[0649] In one possible implementation, the starting index of the SSB in the second SSB set may be preconfigured, or may be defined in the protocol, or may be fixed; and / or the ending index of the SSB in the second SSB set may be preconfigured, or may be defined in the protocol, or may be fixed.

[0650] For example, if the first index information indicates that the starting index of the SSB in the first SSB set is 1, and the number of SSBs in the first SSB set is 10, then it means that the first SSB set includes SSBs with indexes from 1 to 9, or, the SSBs with indexes from 1 to 9 are all SSBs associated with the first system information. For example, if the second quantity information indicates that the number of SSBs in the second SSB set is 10, and the starting index of the SSB in the second SSB set is 60, then it means that the second SSB set includes SSBs with indexes from 60 to 69, or, the SSBs with indexes from 60 to 69 are all SSBs not associated with the first system information.

[0651] E2-8, E2-2 and E2-3, namely, the first quantity information and the second index information. For example, the first quantity information can be regarded as an example of information of the first SSB set, and the second index information can be regarded as an example of information of the second SSB set. Or, for example, E2-8 can be regarded as an example of indication information indicating (or including) information of the first SSB set and information of the second SSB set.

[0652] In one possible implementation, the starting index of the SSB in the first SSB set may be preconfigured, or may be defined in the protocol, or may be fixed; and / or the ending index of the SSB in the first SSB set may be preconfigured, or may be defined in the protocol, or may be fixed.

[0653] In one possible implementation, the number of SSBs in the second SSB set may be preconfigured, or defined in the protocol, or fixed.

[0654] E2-9, E2-1 and E2-2, i.e., first index information and second index information. For example, the first index information may be regarded as an example of information of the first SSB set, and the second index information may be regarded as an example of information of the second SSB set. Or, for example, E2-9 may be regarded as an example of indication information indicating (or including) information of the first SSB set and information of the second SSB set.

[0655] In one possible implementation, the number of SSBs in the first SSB set may be preconfigured, or may be defined in the protocol, or may be fixed. In another possible implementation, the starting index of the SSBs in the first SSB set may be preconfigured, or may be defined in the protocol, or may be fixed; and / or the ending index of the SSBs in the first SSB set may be preconfigured, or may be defined in the protocol, or may be fixed.

[0656] In one possible implementation, the number of SSBs in the second SSB set may be preconfigured, or may be defined in the protocol, or may be fixed. In another possible implementation, the starting index of the SSBs in the second SSB set may be preconfigured, or may be defined in the protocol, or may be fixed; and / or the ending index of the SSBs in the second SSB set may be preconfigured, or may be defined in the protocol, or may be fixed.

[0657] E2-10, E2-3 and E2-4, namely, the first quantity information and the second quantity information. For example, the first quantity information can be regarded as an example of information of the first SSB set, and the second quantity information can be regarded as an example of information of the second SSB set. Or, for example, E2-10 can be regarded as an example of indicating that the information indicates (or includes) the information of the first SSB set and the information of the second SSB set.

[0658] In one possible implementation, the starting index of the SSB in the first SSB set may be preconfigured, or may be defined in the protocol, or may be fixed; and / or the ending index of the SSB in the first SSB set may be preconfigured, or may be defined in the protocol, or may be fixed.

[0659] In one possible implementation, the starting index of the SSB in the second SSB set may be preconfigured, or may be defined in the protocol, or may be fixed; and / or the ending index of the SSB in the second SSB set may be preconfigured, or may be defined in the protocol, or may be fixed.

[0660] For example, the first quantity information indicates that the number of SSBs in the first SSB set is 10, and the starting index of the SSBs in the first SSB set is 10, which means that the first SSB set includes SSBs with indexes from 10 to 19, or, the SSBs with indexes from 10 to 19 are all SSBs associated with the first system information. For example, the second quantity information indicates that the number of SSBs in the second SSB set is 10, and the ending index of the SSBs in the second SSB set is 80, which means that the second SSB set includes SSBs with indexes from 71 to 80, or, the SSBs with indexes from 71 to 80 are all SSBs not associated with the first system information.

[0661] E2-11, E2-1, E2-3 and E2-4, namely, first index information, first quantity information and second quantity information. For example, the first quantity information and the first index information can be regarded as an example of information of the first SSB set, and the second quantity information can be regarded as an example of information of the second SSB set. Or, for example, E2-11 can be regarded as an example of indication information indicating (or including) information of the first SSB set and information of the second SSB set.

[0662] In one possible implementation, the starting index of the SSB in the second SSB set may be preconfigured, or may be defined in the protocol, or may be fixed; and / or the ending index of the SSB in the second SSB set may be preconfigured, or may be defined in the protocol, or may be fixed.

[0663] For example, the first quantity information indicates that the number of SSBs in the first SSB set is 10, and the first index information indicates that the starting index of the SSB in the first SSB set is 10, which means that the first SSB set includes SSBs with indexes from 10 to 19, or, the SSBs with indexes from 10 to 19 are all SSBs associated with the first system information. For example, the second quantity information indicates that the number of SSBs in the second SSB set is 10, and the ending index of the SSB in the second SSB set is 80, which means that the second SSB set includes SSBs with indexes from 71 to 80, or, the SSBs with indexes from 71 to 80 are all SSBs not associated with the first system information.

[0664] E2-12, E2-2, E2-3 and E2-4, namely, the second index information, the first quantity information and the second quantity information. For example, the first quantity information can be regarded as an example of information of the first SSB set, and the second quantity information and the second index information can be regarded as an example of information of the second SSB set. Or, for example, E2-12 can be regarded as an example of indication information indicating (or including) information of the first SSB set and information of the second SSB set.

[0665] In one possible implementation, the starting index of the SSB in the first SSB set may be preconfigured, or may be defined in the protocol, or may be fixed; and / or the ending index of the SSB in the first SSB set may be preconfigured, or may be defined in the protocol, or may be fixed.

[0666] For example, the first quantity information indicates that the number of SSBs in the first SSB set is 10, and the starting index of the SSB in the first SSB set is 10, which means that the first SSB set includes SSBs with indexes from 10 to 19, or, the SSBs with indexes from 10 to 19 are all SSBs associated with the first system information. For example, the second quantity information indicates that the number of SSBs in the second SSB set is 10, and the second index information indicates that the ending index of the SSB in the second SSB set is 80, which means that the second SSB set includes SSBs with indexes from 71 to 80, or, the SSBs with indexes from 71 to 80 are all SSBs not associated with the first system information.

[0667] E2-13, E2-1 to E2-4, namely, first index information, second index information, first quantity information, and second quantity information. For example, the first quantity information and the first index information can be regarded as an example of information of the first SSB set, and the second quantity information and the second index information can be regarded as an example of information of the second SSB set. Or, for example, E2-13 can be regarded as an example of indication information indicating (or including) information of the first SSB set and information of the second SSB set.

[0668] For example, if the first quantity information indicates that the number of SSBs in the first SSB set is 10, and the first index information indicates that the starting index of the SSB in the first SSB set is 10, then it means that the first SSB set includes SSBs with indexes from 10 to 19, or, the SSBs with indexes from 10 to 19 are all SSBs associated with the first system information. For example, if the second quantity information indicates that the number of SSBs in the second SSB set is 10, and the second index information indicates that the ending index of the SSB in the second SSB set is 80, then it means that the second SSB set includes SSBs with indexes from 71 to 80, or, the SSBs with indexes from 71 to 80 are all SSBs not associated with the first system information.

[0669] E3. The indication information indicates information of an index of an SSB in the first SSB set, and / or information of an index of an SSB in the second SSB set. For example, the information of an index of an SSB in the first SSB set may be regarded as an example of information of the first SSB set. For example, the information of an index of an SSB in the second SSB set may be regarded as an example of information of the second SSB set.

[0670] For example, the indication information indicates information about the indexes of one or more or all SSBs in the first SSB set, and / or information about the indexes of one or more or all SSBs in the second SSB set.

[0671] Optionally, the indication information may include / indicate: for an SSB (e.g., the first SSB), the second communication device sends the first system information or / and does not send the first system information; or, for an SSB (e.g., the first SSB), the first communication device receives the first system information or / and does not receive the first system information; or, an SSB (e.g., the first SSB) belongs to / is a first SSB set or / and a second SSB set.

[0672] Optionally, the indication information is associated with the first SSB. For example, for the first SSB, the second communication device sends the indication information. For example, for the first SSB, the first communication device obtains the indication information.

[0673] Optionally, the indication information may be carried in DCI, etc., and the embodiments of the present application do not specifically limit this. For example, the indication information is carried in a paging DCI, or a short message of a paging DCI. Optionally, the indication information occupies 1 bit. For example, a first communication device receives a paging DCI in a first SSB, and the paging DCI includes indication information indicating that: for the first SSB, the second communication device sends the first system information, or the first SSB is associated with the first system information, or the first SSB belongs to / is a first SSB set.

[0674] Optionally, the first SSB may be: the SSB where the first communication device is currently located, or the SSB from which the first communication device obtains indication information.

[0675] For example, the value of the indication information is the first value, indicating that for the first SSB, the second communication device sends the first system information or indicates that the first SSB belongs to / is a first SSB set, and the value of the indication information is the second value, indicating that for the first SSB, the second communication device does not send the first system information or indicates that the first SSB belongs to / is a second SSB set. For example, the first value is 1 and the second value is 0; or, the first value is 0 and the second value is 1, and there is no limitation on this.

[0676] For example, for one SSB, it may include / replace with: a PDCCH monitoring opportunity corresponding to one SSB.

[0677] For example, for the first SSB, it can include / replace with: the PDCCH monitoring opportunity corresponding to the first SSB.

[0678] In a possible implementation, the indication information may include information of a fourth SSB set and / or information of a fifth SSB set in addition to information of the first SSB set and / or information of the second SSB set.

[0679] Optionally, the manner in which the indication information indicates the information of the fourth SSB set and / or the information of the fifth SSB set may refer to the manner in which the indication information indicates the information of the first SSB set and / or the information of the second SSB set is previously described and is not listed here.

[0680] In one possible implementation, the fourth SSB set belongs to the second cell. Optionally, the fifth SSB set also belongs to the second cell. Alternatively, in one possible implementation, the fourth SSB set is associated with the second cell. Optionally, the fifth SSB set is associated with the second cell.

[0681] Optionally, the fourth SSB set may be an SSB set associated with the first system information. Optionally, the fifth SSB set may be an SSB set not associated with the first system information. For example, the second cell is different from the first cell. For example, in this possible implementation, the indication information may include not only relevant information of the SSB set of the first cell, but also relevant information of SSB sets related to other cells (including but not limited to the second cell).

[0682] Optionally, S1702, the first communication device determines a first SSB set and / or a second SSB set.

[0683] For example, determining the first SSB set may include / be replaced by any one or more of the following: determining the SSB associated with the first system information, determining the SSB set associated with the first system information, determining the edge SSB, or determining a set of edge SSBs.

[0684] For example, determining the second SSB set may include / be replaced by any one or more of the following: determining an SSB that is not associated with the first system information, determining a set of SSBs that are not associated with the first system information, determining a center SSB, or determining a set of center SSBs.

[0685] Optionally, if the indication information indicates the information of the first SSB set and / or the information of the second SSB set in different ways, then the way in which the first communication device executes S1702 is also different, as illustrated below with examples.

[0686] F1. Use E1 to indicate the information of the first SSB set and / or the information of the second SSB set, that is, the indication information indicates the information of the first SSB set and / or the information of the second SSB set in the form of a bit map.

[0687] In this case, the first communication device determines the content of the first SSB set by referring to the content of the first area set determined by the first communication device under C1, and the first communication device determines the content of the second SSB set by referring to the content of the second area set determined by the first communication device under C1, which are not listed one by one here.

[0688] F2. Use E2 to indicate the information of the first SSB set and / or the information of the second SSB set.

[0689] F2-1. If the indication information includes the first index information shown in E2-1.

[0690] In this case, the first communication device determines the content of the first SSB set by referring to the content of the first area set determined by the first communication device under C2-1, and the first communication device determines the content of the second SSB set by referring to the content of the second area set determined by the first communication device under C2-1, and they are not listed one by one here.

[0691] F2-2. The indication information includes the second index information shown in E2-2.

[0692] In this case, the first communication device determines the content of the first SSB set by referring to the content of the first area set determined by the first communication device under C2-2, and the first communication device determines the content of the second SSB set by referring to the content of the second area set determined by the first communication device under C2-2, which are not listed one by one here.

[0693] F2-3. The indication information includes the first quantity information shown in E2-3.

[0694] In this case, the first communication device determines the content of the first SSB set by referring to the content of the first area set determined by the first communication device under C2-3, and the first communication device determines the content of the second SSB set by referring to the content of the second area set determined by the first communication device under C2-3, which are not listed one by one here.

[0695] F2-4. The indication information includes the second quantity information shown in E2-4.

[0696] In this case, the first communication device determines the content of the first SSB set by referring to the content of the first area set determined by the first communication device under C2-4 in the previous text, and the first communication device determines the content of the second SSB set by referring to the content of the second area set determined by the first communication device under C2-4 in the previous text, and they are not listed one by one here.

[0697] When the indication information includes at least two items of E2-1 to E2-4, the first communication device may also determine the first SSB set and / or the second SSB set in combination with the method corresponding to at least two items of E2-1 to E2-4 in the previous text F2-1 to F2-4, which is introduced below with the contents shown in F2-5 to F2-13.

[0698] F2-5, the indication information includes the first index information shown in E2-1 and the first quantity information shown in E2-3 (or the indication information can be regarded as the information shown in E2-5), then the first communication device can directly determine the first SSB set based on the first index information and the first quantity information. Optionally, the first communication device can also determine the second SSB set.

[0699] F2-6, the indication information includes the second index information shown in E2-2 and the second quantity information shown in E2-4 (or the indication information can be regarded as the information shown in E2-6), then the first communication device can directly determine the second SSB set based on the second index information and the second quantity information. Optionally, the first communication device can also determine the first SSB set.

[0700] F2-7, the indication information includes the first index information shown in E2-1 and the second quantity information shown in E2-4 (or the indication information can be regarded as the information shown in E2-7).

[0701] In this case, the first communication device can refer to the content of F2-1 above to determine the first SSB set, and refer to the content of C2-3 above to determine the second SSB set, and the repeated parts will not be listed again.

[0702] F2-8, the indication information includes the second index information shown in E2-2 and the first quantity information shown in E2-3 (or the indication information can be regarded as the information shown in E2-8).

[0703] In this case, the first communication device can refer to the content of F2-2 in the previous text to determine the second SSB set, and refer to the content of F2-3 in the previous text to determine the first SSB set. The repeated parts are not listed again.

[0704] F2-9, the indication information includes the contents of E2-1 and E2-2, that is, the indication information includes the first index information and the second index information (or the indication information can be regarded as the information shown in E2-9).

[0705] In this case, the first communication device can refer to the content of F2-1 above to determine the first SSB set, and refer to the content of C2-2 above to determine the second SSB set, and the repeated parts will not be listed again.

[0706] F2-10, the indication information includes the contents of E2-3 and E2-4, that is, the indication information includes the first quantity information and the second quantity information (or the indication information can be regarded as the information shown in E2-10).

[0707] In this case, the first communication device can refer to the content of F2-3 above to determine the first SSB set, and refer to the content of C2-4 above to determine the second SSB set, and the repeated parts will not be listed again.

[0708] F2-11, the indication information includes the contents of E2-1, E2-3 and E2-4, that is, the indication information includes the first index information, the first quantity information and the second quantity information (or the indication information can be regarded as the information shown in E2-11).

[0709] In this case, the first communication device can determine the first SSB set based on the first index information and the first quantity information, and determine the second SSB set with reference to the content of F2-4 above, and the repeated parts will not be listed again.

[0710] F2-12, the indication information includes the contents of E2-2, E2-3 and E2-4, that is, the indication information includes the second index information, the first quantity information and the second quantity information (or the indication information can be regarded as the information shown in E2-12).

[0711] In this case, the first communication device can determine the second SSB set based on the second index information and the second quantity information, and determine the first SSB set with reference to the content of F2-3 above, and the repeated parts will not be listed again.

[0712] F2-13, the indication information includes the contents of E2-1 to E2-4, that is, the indication information includes the first index information, the second index information, the first quantity information and the second quantity information (or the indication information can be regarded as the information shown in E2-13).

[0713] In this case, the first communication device may determine the first SSB set based on the first index information and the first quantity information, and determine the second SSB set based on the second index information and the second quantity information.

[0714] F3. Use E3 to indicate the information of the first SSB set and / or the information of the second SSB set.

[0715] In this case, the first communication device determines the content of the first SSB set by referring to the content of the first area set determined by the first communication device under C3, and the first communication device determines the content of the second SSB set by referring to the content of the second area set determined by the first communication device under C3, which are not listed one by one here.

[0716] In a possible implementation, if the first SSB set or the second SSB set includes only the first SSB, the first communication device may determine whether the first SSB is associated with the first system information or is not associated with the first system information based on the indication information.

[0717] Optionally, S1702 or the first communication device determines the first SSB set and / or the second SSB set, which may include / be replaced by: the first communication device determines that an SSB (e.g., the first SSB) is associated with the first system information or / and is not associated with the first system information, or that an SSB (e.g., the first SSB) belongs to / is the first SSB set and / or the second SSB set.

[0718] Optionally, in a possible implementation, if the indication information also includes information about the fourth SSB set and / or information about the fifth SSB set, the first communication device may determine the fourth SSB set and the fifth SSB set. Optionally, the manner of determining the fourth SSB set and the manner of determining the fifth SSB set may refer to the manner in which the first communication device determines the first SSB set and / or the second SSB set, which will not be listed here.

[0719] Optionally, S1703, the first communication device obtains SIB1 (or SIB1bis).

[0720] Optionally, S1703 may include: S1703a and / or S1703b. For example, S1703a is that the second communication device sends SIB1 (or SIB1bis) in the first SSB set (or may be referred to as SIB1 (or SIB1bis) corresponding to the first SSB set). Optionally, S1703a may be understood as the second communication device sending SIB1 (or SIB1bis) in the area corresponding to the first SSB set. For example, S1703b is that the second communication device sends SIB1 in the second SSB set (or may be referred to as SIB1 (or SIB1bis) corresponding to the second SSB set). Optionally, S1703b may be understood as the second communication device sending SIB1 (or SIB1bis) in the area corresponding to the second SSB set. For example, S1703a is that the first communication device receives SIB1 (or SIB1bis) in the first SSB set (or may be referred to as SIB1 (or SIB1bis) corresponding to the first SSB set). Optionally, S1703a may be understood as the first communication device receiving SIB1 (or SIB1bis) in the area corresponding to the first SSB set. For example, S1703b is the first communication device receiving SIB1 in the second SSB set (or may be referred to as SIB1 (or SIB1bis) corresponding to the second SSB set). Optionally, S1703b may be understood as the first communication device receiving SIB1 (or SIB1bis) in the area corresponding to the second SSB set.

[0721] Optionally, the first communication device obtains SIB1 (or SIB1bis), which may include / be replaced by: the first communication device obtains scheduling information of the first system information.

[0722] Optionally, the first SSB set and the second SSB set correspond to the same SIB1 (or SIB1bis), or the SIB1 (or SIB1bis) corresponding to the first SSB set and the second SSB set are the same.

[0723] Optionally, the first SSB set and the second SSB set corresponding to the same SIB1 (or SIB1bis) may include / be understood as: within a period of time (for example, a SIB1 / SIB1bis period or a modification period), the SIB1 (or SIB1bis) corresponding to the first SSB set and the second SSB set are the same.

[0724] In different time periods, the SIB1 (or SIB1bis) corresponding to the first SSB set and the second SSB set may be the same or different, and there is no limitation on this.

[0725] Optionally, all SSBs (or, all SSBs corresponding to a cell / first cell / all transmitted SSBs) correspond to the same SIB1 (or SIB1bis), or, all SSBs (or, all SSBs corresponding to a cell / first cell / all transmitted SSBs) correspond to the same SIB1 (or SIB1bis). For example, all SSBs may include / be all SSBs of the second communication device in the first cell, or all SSBs related to the first cell, or all SSBs configured by the second communication device in signaling (such as high-level signaling or system information or SIB1). For example, all SSBs may include / be replaced by all transmitted SSBs.

[0726] Optionally, all SSBs (or, all SSBs corresponding to a cell / first cell / all transmitted SSBs) corresponding to the same SIB1 (or SIB1bis) may include / be understood as: within a period of time (for example, a SIB1 / SIB1bis period or a modification period), the SIB1 (or SIB1bis) corresponding to all SSBs (or, all SSBs corresponding to a cell / first cell / all transmitted SSBs) are the same.

[0727] In different time periods, the SIB1 (or SIB1bis) corresponding to all SSBs (or all SSBs corresponding to a cell / first cell / all transmitted SSBs) may be the same or may be different, and there is no limitation on this.

[0728] For example, the first communication device assumes / considers / assumes that: all SSBs (or, all SSBs corresponding to a cell / first cell / all transmitted SSBs) correspond to the same SIB1 (or SIB1bis), or, the SIB1 (or SIB1bis) corresponding to all SSBs (or, all SSBs corresponding to a cell / first cell / all transmitted SSBs) are the same.

[0729] Optionally, SIB1 (or SIB1bis) of the first cell includes / all includes scheduling information of the first system information.

[0730] Optionally, SIB1 (or SIB1bis) corresponding to the first SSB set and the second SSB set includes / both include scheduling information of the first system information.

[0731] For example, the SIB1 (or SIB1bis) corresponding to the first SSB set is the same as the SIB1 (or SIB1bis) corresponding to the second SSB set. For example, the content of the SIB1 (or SIB1bis) corresponding to the first SSB set is the same as the content of the SIB1 (or SIB1bis) corresponding to the second SSB set. For example, the SIB1 (or SIB1bis) corresponding to the first SSB set and the SIB1 (or SIB1bis) corresponding to the second SSB set both include scheduling information of the first system information (or, the same scheduling information of the first system information). For example, the information items included in the SIB1 (or SIB1bis) corresponding to the first SSB set are the same as the information items included in the SIB1 (or SIB1bis) corresponding to the second SSB set.

[0732] It should be noted that the present application does not limit whether the first communication device has obtained both the SIB1 (or SIB1bis) corresponding to the first SSB set and the SIB1 (or SIB1bis) corresponding to the second SSB set, and does not limit the relationship between the number of SIB1 (or SIB1bis) obtained in the first SSB set and the number of SIB1 (or SIB1bis) obtained in the second SSB set. Optionally, the first communication device may obtain one or more of the SIB1 (or SIB1bis) corresponding to the first SSB set and the SIB1 (or SIB1bis) corresponding to the second SSB set.

[0733] For example, if the indication information is carried in the SIB1 (or SIB1bis), then the first communication device obtains SIB1 (or SIB1bis), and thus obtains the indication information. In this case, S1701 and S1703 can be implemented in one step.

[0734] Alternatively, for example, if the indication information is not carried in SIB1 (or SIB1bis), then the execution order of S1201A and S1203A may be arbitrary, for example, S1701 may be executed first, then S1703, or S1701 and S1703 may be executed simultaneously, or S1703 may be executed first, then S1701. Of course, the execution order of S1702 and S1703 may also be arbitrary, for example, S1702 may be executed first, then S1703, or S1702 and S1703 may be executed simultaneously, or S1703 may be executed first, then S1702.

[0735] S1704: For the second SSB set, the first communication device ignores the scheduling information of the first system information, and / or, for the second SSB set, the first communication device does not receive the first system information. S1704 is an optional step. Fig.17 Indicated by dotted line.

[0736] Optionally, for the second SSB set, the second communication device does not send the first system information.

[0737] For example, the first communication device determines the first SSB set or the second SSB set, and can determine that for the second SSB set, the second communication device will not send the first system information, but the SIB1 (or SIB1bis) obtained by the first communication device (the SIB1 (or SIB1bis) received in the first SSB set (such as the SIB1 (or SIB1bis) corresponding to the first SSB set) and / or the SIB1 (or SIB1bis) received in the second SSB set (such as the SIB1 (or SIB1bis) corresponding to the second SSB set)) includes the scheduling information of the first system information. In this case, for the second SSB set, the first communication device can ignore the scheduling information of the first system information.

[0738] For example, for the second SSB set, the first communication device does not need to monitor the first system information.

[0739] Optionally, in S1704, for the second SSB set, the first communication device ignores the scheduling information of the first system information, and / or, for the second SSB set, the first communication device does not receive the first system information, which may include / be replaced by: for / in the second area set, the first communication device ignores the scheduling information of the first system information, and / or, for / in the second area set, the first communication device does not receive the first system information.

[0740] For example, the second area set may include / be replaced by: the area corresponding to the second SSB set, the coverage area of ​​the second SSB set, or the coverage area corresponding to the second SSB set.

[0741] Optionally, S1705, for the first SSB set (or, one or more SSBs in the first SSB set), the first communication device receives first system information.

[0742] Optionally, the first system information in S1205A may include / be replaced by: the second system information, or one or more system information or SIB or SI message in the first system information.

[0743] Optionally, for the first SSB set, the second communication device sends the first system information. For example, for the first SSB set, the second communication device broadcasts the first system information.

[0744] Optionally, when the first condition is met, the first communication device receives first system information for the first SSB set (or one or more SSBs in the first SSB set).

[0745] For example, satisfying the first condition may include / be replaced by: if the first condition is satisfied, determining that the first condition is satisfied, or, the first communication device satisfies the first condition, or, the first communication device determines that the first condition is satisfied.

[0746] The implementation of the first condition is introduced below. For example, the first condition may include any one of the following G1 to G5.

[0747] G1. The first communication device fails to obtain the first system information in the first cell.

[0748] G2. The first communication device determines that the first system information changes.

[0749] G3. The first communication device does not have a valid version of the first system information.

[0750] G4. The first communication device requires first system information.

[0751] G5. The first communication device is located in the area corresponding to the first SSB set.

[0752] The contents of G1 to G5 above can be found in the previous text. Fig.12 The content of the first condition in will not be repeated.

[0753] Exemplarily, one or more SIBs / system information are associated with or belong to the first system information or indication information, and in an SI window (the SI window corresponding to the SI message corresponding to the one or more SIBs / system information), the PDCCH / DCI corresponding to the SI message corresponding to the one or more SIBs / system information is transmitted (or, by the second communication device) at least once at the PDCCH monitoring opportunity corresponding to each SSB in the first SSB set (or, each transmitted SSB in the first SSB set). For example, the first communication device assumes / believes / regards that: one or more SIBs / system information are not associated with or do not belong to the first system information or indication information, and in an SI window (the SI window corresponding to the SI message corresponding to the one or more SIBs / system information), the PDCCH / DCI corresponding to the SImessage corresponding to the one or more SIBs / system information is transmitted (or, by the second communication device) at least once at the PDCCH monitoring opportunity corresponding to each SSB in the first SSB set (or, each transmitted SSB in the first SSB set).

[0754] Optionally, the present application may also include: one or more SIBs / system information are not associated with or do not belong to the first system information or indication information, and in an SI window (the SI window corresponding to the SImessage corresponding to the one or more SIBs / system information), the PDCCH / DCI corresponding to the SI message corresponding to the one or more SIBs / system information is transmitted (or, by the second communication device) at least once at the PDCCH monitoring opportunity corresponding to each SSB (or, each transmitted SSB). For example, the first communication device assumes / believes / regards that: one or more SIBs / system information are not associated with or do not belong to the first system information or indication information, and in an SI window (the SI window corresponding to t...

Claims

1. A communication method, characterized in that: Applied to a first communication device, the method comprises: Acquire indication information, where the indication information includes information of a first area set and / or information of a second area set, where the first area set includes an area where the first system information is sent, and the second area set includes an area where the first system information is not sent; The first area set and / or the second area set are determined.

2. The method according to claim 1, characterized in that The first area set and the second area set belong to a first cell.

3. The method according to claim 1 or 2, characterized in that: The indication information includes N bits, and the N bits are used to carry information of the first area set and / or information of the second area set. The first bit of the N bits is used to indicate that the first area sends the first system information or does not send the first system information. The first area belongs to the first area set or the second area set. Different bits of the N bits correspond to different areas, and N is a positive integer.

4. The method according to claim 1 or 2, characterized in that: The indication information includes at least one of the following: first index information, where the first index information indicates a start index of a region and / or an end index of a region in the first region set; second index information, where the second index information indicates a start index of a region and / or an end index of a region in the second region set; first quantity information, the first quantity information indicating the number of regions in the first region set; or, Second quantity information, where the second quantity information indicates the quantity of regions in the second region set.

5. The method according to any one of claims 1 to 4, characterized in that: The method further comprises: Receiving first system information in the first area set; and / or, The first system information is not received in the second area set, or the scheduling information of the first system information is ignored in the second area set.

6. The method according to claim 5, characterized in that Before the first area set receives the first system information, the method further includes: Determine that a first condition is met, where the first condition includes at least one of the following: The first system information is not acquired in the first cell, and both the first area set and the second area set belong to the first cell; Determining a first system information change; The first communication device requires first system information; or, The first communication device enters an area in the first area set.

7. The method according to any one of claims 1 to 6, characterized in that: The first area set and the second area set correspond to the same system information block 1 SIB1 and / or SIB1bis.

8. The method according to any one of claims 1 to 7, characterized in that: The indication information is carried in the following information: first SIB1; or, first SIB1bis; or, The first master information block MIB; or First downlink control information DCI.

9. The method according to claim 8, characterized in that The first SIB1, the first SIB1bis, the first MIB or the first DCI is associated with a first cell, and the first area set and the second area set both belong to the first cell.

10. A communication method, characterized in that: Applied to a first communication device, the method comprises: Acquire indication information, where the indication information includes information of a first synchronization signal block SSB set and / or information of a second SSB set, where the first SSB set includes SSBs associated with the first system information, and the second SSB set includes SSBs not associated with the first system information; Determine the first SSB set, and / or determine the second SSB set.

11. The method according to claim 10, characterized in that The indication information includes N bits, and the N bits are used to carry information of the first SSB set and / or information of the second SSB set. The first bit of the N bits is used to indicate whether the first system information is sent or not for a first SSB. The first SSB belongs to the first SSB set or the second SSB set. Different bits of the N bits correspond to different SSBs, and N is a positive integer.

12. The method according to claim 10 or 11, characterized in that: The indication information includes at least one of the following: first index information, where the first index information indicates a start index of an SSB and / or an end index of an SSB in the first SSB set; second index information, where the second index information indicates a start index of an SSB and / or an end index of an SSB in the second SSB set; first quantity information, the first quantity information indicating the quantity of SSBs in the first SSB set; or, Second quantity information, wherein the second quantity information indicates the number of SSBs in the second SSB set.

13. The method according to any one of claims 10 to 12, characterized in that: The method further comprises: Receiving the first system information in a first SSB set; and / or, The first system information is not received in the second SSB set, or the scheduling information of the first system information is ignored in the second SSB set.

14. The method according to claim 13, characterized in that Before the first SSB set receives the first system information, the method further includes: Determine whether a first condition is satisfied, where the first condition includes at least one of the following: The first system information is not acquired in the first cell, and the first SSB set and the second SSB set both belong to the first cell; Determine system information changes; The first communication device does not have a valid version of the first system information; The first communication device requires first system information; or, The first communication device enters the area corresponding to the first SSB set.

15. The method according to any one of claims 10 to 14, characterized in that: The first SSB set and the second SSB set correspond to the same SIB1 and / or SIB1bis.

16. A communication method, characterized in that: Applied to a second communication device, the method comprises: Determine a first area set to send the first system information, and / or determine a second area set not to send the first system information; Send indication information, where the indication information includes information about the first area set and / or information about the second area set.

17. The method according to claim 16, characterized in that The first area set and the second area set belong to a first cell.

18. The method according to claim 16 or 17, characterized in that The indication information includes N bits, and the N bits are used to carry information of the first area set and / or information of the second area set. The first bit of the N bits is used to indicate that the first area sends the first system information or does not send the first system information. The first area belongs to the first area set or the second area set, and different bits of the N bits correspond to different areas.

19. The method according to claim 16 or 17, characterized in that The indication information includes at least one of the following: first index information, where the first index information indicates a start index of a region and / or an end index of a region in the first region set; second index information, where the second index information indicates a start index of a region and / or an end index of a region in the second region set; first quantity information, the first quantity information indicating the number of regions in the first region set; or, Second quantity information, where the second quantity information indicates the quantity of regions in the second region set.

20. The method according to any one of claims 16 to 19, characterized in that: The method further comprises: The first system information is sent in the first area set.

21. The method according to claim 20, characterized in that Before the first area set sends the first system information, the method further includes: Second information is sent, where the second information indicates that the first system information is changed.

22. The method according to any one of claims 16 to 21, characterized in that: The first area set and the second area set correspond to the same system information block 1 SIB1 and / or SIB1bis.

23. The method according to any one of claims 16 to 22, characterized in that: The indication information is carried in the following information: first SIB1; or, first SIB1bis; or, The first master information block MIB; or First downlink control information DCI.

24. The method according to claim 23, characterized in that The first SIB1, the first SIB1bis, the first MIB or the first DCI is associated with a first cell, and the first area set and the second area set both belong to the first cell.

25. A communication method, characterized in that: Applied to a second communication device, the method comprises: Determine a first synchronization signal SSB set, and / or determine a second SSB set, wherein the first SSB set includes SSBs associated with the first system information, and the second SSB set includes SSBs not associated with the first system information; Send indication information, wherein the indication information includes information of the first SSB set and / or information of the second SSB set.

26. The method according to claim 25, characterized in that The indication information includes N bits, and the N bits are used to carry information of the first SSB set and / or information of the second SSB set. The first bit of the N bits is used to indicate that the first system information is sent in the first SSB or not, and the first SSB belongs to the first SSB set or the second SSB set. Different bits of the N bits correspond to different SSBs, and N is a positive integer.

27. The method according to claim 25 or 26, characterized in that The indication information includes at least one of the following: first index information, where the first index information indicates a start index of an SSB and / or an end index of an SSB in the first SSB set; second index information, where the second index information indicates a start index of an SSB and / or an end index of an SSB in the second SSB set; first quantity information, the first quantity information indicating the quantity of SSBs in the first SSB set; or, Second quantity information, wherein the second quantity information indicates the number of SSBs in the second SSB set.

28. The method according to any one of claims 25 to 27, characterized in that: The method further comprises: The first system information is sent in a first SSB set.

29. The method according to any one of claims 25 to 28, characterized in that: The first SSB set and the second SSB set correspond to the same SIB1 and / or SIB1bis.

30. A communication device, characterized in that: include: A module for executing the method according to any one of claims 1 to 9; A module for executing the method according to any one of claims 10 to 15; A module for executing the method according to any one of claims 16 to 24; or, Module for performing the method according to any one of claims 25-29.

31. A communication device, characterized in that: The method comprises a processor, wherein the processor is used to implement the method according to any one of claims 1 to 9, the method according to any one of claims 10 to 15, the method according to any one of claims 16 to 24, or the method according to any one of claims 25 to 29.

32. A computer-readable storage medium, characterized in that: The storage medium stores a computer program or instruction. When the computer program or instruction is executed by the communication device, it implements the method according to any one of claims 1 to 9, the method according to any one of claims 10 to 15, the method according to any one of claims 16 to 24, or the method according to any one of claims 25 to 29.

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