A method and apparatus in a node for wireless communication

Abstract

The application discloses a method and device in a node for wireless communication. The node receives a first synchronization broadcast signal carrying first information; the node receives a second synchronization broadcast signal; the frequency domain resource occupied by the first synchronization broadcast signal and the frequency domain resource occupied by the second synchronization broadcast signal are different; the second synchronization broadcast signal belongs to a target frequency band in the frequency domain, and the first information indicates the number of the target frequency band and the number of the second synchronization broadcast signal in the frequency domain. The application improves resource utilization, reduces signaling overhead and power consumption.

Description

Technical Field

[0001] This application relates to transmission methods and apparatus in wireless communication systems, and more particularly to schemes and apparatus for multi-carrier transmission in wireless communication. Background Technology

[0002] The application scenarios of future wireless communication systems are becoming increasingly diversified, and different application scenarios place different performance requirements on the system. To meet the diverse performance needs of various application scenarios, research on New Radio (NR) (or 5G) was initiated at the 3GPP (3rd Generation Partner Project) RAN (Radio Access Network) #72 plenary meeting. With the widespread application of 5G, new business models and application scenarios are constantly emerging, and the existing 5G standard cannot fully meet the new demands. Therefore, 3GPP is preparing to begin preliminary research on 6G.

[0003] With the diversification of application scenarios and the emergence of new business models, the demand for more flexible and effective use of spectrum resources is increasing day by day. Therefore, 6G needs to explore new ways of using spectrum resources. Summary of the Invention

[0004] Both 4G and 5G systems support carrier aggregation (CA), which allows different frequency domain resources to be used together, increasing overall bandwidth and thus transmission rate and throughput. However, in existing 4G and 5G carrier aggregation systems, each component carrier (CC) corresponds to a cell, and it does not support two or more component carriers corresponding to the same cell. This approach in existing 4G and 5G systems greatly limits the spectrum flexibility in carrier aggregation, especially limiting the use of many fragmented spectrum resources. As spectrum resources (especially low-frequency spectrum resources) become increasingly valuable, 6G networks need to find a more flexible and efficient way to utilize spectrum resources. Having multiple carriers or spectrum distributed across multiple frequency bands corresponding to the same cell, thus supporting uplink and downlink transmissions distributed across multiple carriers, is considered a more efficient means for 6G networks to utilize spectrum resources. According to the applicant's research, when multiple carriers or spectrum distributed across multiple frequency bands correspond to the same cell, the channel characteristics between the multiple carriers may be very different. For carrier synchronization and measurement needs, at least some carriers within the same cell may support the transmission of synchronous broadcast signals. Among multiple synchronization broadcast signals, only one or some may be used to define a cell or characterize an anchor carrier within a cell. To reduce the complexity of frequency sweeping or blind detection during synchronization by user equipment, other synchronization broadcast signals can indicate the frequency domain location of the synchronization broadcast signal defining the cell or anchor carrier. In existing 5G systems, non-cell-defining synchronization broadcast blocks (SSBs, synchronization signal blocks, or SS / PBCH blocks) indicate the global synchronization channel number (GSCN) of the cell-defining synchronization broadcast block in the frequency domain. However, in 6G systems, especially when multiple carriers correspond to the same cell, the carriers corresponding to the same cell may be spaced far apart, such as inter-band carriers. In this case, directly indicating the global synchronization broadcast signal's frequency domain number requires significant broadcast signaling overhead. Therefore, a more efficient indication method between synchronization broadcast signals is needed.

[0005] This application discloses a solution to the problem of indicating synchronous broadcast signals. It should be noted that the description in this application uses multi-carrier single-cell (or single-cell multi-carrier) as a typical application scenario or example. This application is also applicable to 6G networks or other scenarios facing similar problems in the future (such as other scenarios that require the joint use of multiple carriers, or other scenarios that require the effective utilization of fragmented spectrum, such as 2G or 3G spectrum refarming, or other scenarios utilizing idle spectrum from non-cellular systems). For different application scenarios, such as eMBB, URLLC, full-duplex networks, IoT, sensor networks, integrated sensing networks, smart metasurfaces, and terahertz networks, V2X can also achieve similar technical effects. In addition, adopting a unified solution for different scenarios (including but not limited to eMBB, URLLC, full-duplex networks, IoT, sensor networks, integrated sensing networks, smart metasurfaces, terahertz networks, and V2X scenarios) or different application parameters can also help reduce hardware complexity and cost. Where there is no conflict, the embodiments and features in the embodiments used in the first node of this application can be applied to the embodiments used in the second node of this application, and vice versa.

[0006] This application discloses a method for a first node in wireless communication, characterized by comprising:

[0007] Receive a first synchronous broadcast signal, the first synchronous broadcast signal carrying first information;

[0008] Receive the second synchronous broadcast signal;

[0009] The frequency domain resources occupied by the first synchronous broadcast signal and the second synchronous broadcast signal are different; the second synchronous broadcast signal belongs to the target frequency band in the frequency domain, and the first information indicates the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain.

[0010] It should be noted that receiving (or sending) the first synchronous broadcast signal and the second synchronous broadcast signal is a common expression in the field, which includes the content of receiving (or sending) the first synchronous broadcast signal and the second synchronous broadcast signal, respectively. The above expression is conducive to maintaining consistency with the general expression in the field.

[0011] As an example, by using one synchronization or broadcast signal to indicate the band and corresponding frequency number of another synchronization or broadcast signal, the signaling overhead of cross-band indication is saved.

[0012] According to one aspect of this application, the method is characterized in that the second synchronization broadcast signal belongs to one of a plurality of carriers in the frequency domain, the plurality of carriers belong to the same cell, and the system information blocks in the same cell to which the plurality of carriers belong depend on the second synchronization broadcast signal.

[0013] According to one aspect of this application, the method is characterized in that the target frequency band and the frequency band to which the first synchronous broadcast signal belongs in the frequency domain both belong to a first frequency band combination, the first frequency band combination being one of K1 frequency band combinations, each of the K1 frequency band combinations including at least the frequency band to which the first synchronous broadcast signal belongs in the frequency domain; the first information indicates the first frequency band combination from the K1 frequency band combinations, the first information indicates the target frequency band from the first frequency band combination, the first information indicates the number of the second synchronous broadcast signal in the target frequency band, and K1 is a positive integer greater than 1.

[0014] According to one aspect of this application, the above method is characterized by comprising:

[0015] Receive the second message;

[0016] Wherein, the second synchronization broadcast signal indicates the first reference frequency, the second information indicates the first frequency offset, and the first frequency offset is equal to the frequency interval between the boundary subcarrier in a resource grid for a subcarrier interval and the first reference frequency.

[0017] According to one aspect of this application, the method is characterized in that the target frequency band is the frequency band closest to the frequency band to which the first synchronous broadcast signal belongs in the frequency domain, and the first information indicates the offset value between the number of the target frequency band and the number of the frequency band to which the first synchronous broadcast signal belongs in the frequency domain.

[0018] According to one aspect of this application, the method is characterized in that the second synchronization broadcast signal carries a first identifier, the first identifier being a physical cell identifier; the first carrier is a carrier included in the cell using the first identifier, the first carrier being a carrier other than the carrier to which the second synchronization broadcast signal belongs, and the time and frequency synchronization of the first carrier being dependent on the second synchronization broadcast signal.

[0019] According to one aspect of this application, the above method is characterized in that the first synchronous broadcast signal indicates a first quantity value, and whether the first quantity value indicates the number of the target frequency band depends on the range of values ​​to which the first quantity value belongs.

[0020] This application discloses a method for a second node in wireless communication, characterized by comprising:

[0021] Send a first synchronous broadcast signal, the first synchronous broadcast signal carrying first information;

[0022] Send a second synchronous broadcast signal;

[0023] The frequency domain resources occupied by the first synchronous broadcast signal and the second synchronous broadcast signal are different; the second synchronous broadcast signal belongs to the target frequency band in the frequency domain, and the first information indicates the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain.

[0024] According to one aspect of this application, the method is characterized in that the second synchronization broadcast signal belongs to one of a plurality of carriers in the frequency domain, the plurality of carriers belong to the same cell, and the system information blocks in the same cell to which the plurality of carriers belong depend on the second synchronization broadcast signal.

[0025] According to one aspect of this application, the method is characterized in that the target frequency band and the frequency band to which the first synchronous broadcast signal belongs in the frequency domain both belong to a first frequency band combination, the first frequency band combination being one of K1 frequency band combinations, each of the K1 frequency band combinations including at least the frequency band to which the first synchronous broadcast signal belongs in the frequency domain; the first information indicates the first frequency band combination from the K1 frequency band combinations, the first information indicates the target frequency band from the first frequency band combination, the first information indicates the number of the second synchronous broadcast signal in the target frequency band, and K1 is a positive integer greater than 1.

[0026] According to one aspect of this application, the above method is characterized by comprising:

[0027] Send a second message;

[0028] Wherein, the second synchronization broadcast signal indicates the first reference frequency, the second information indicates the first frequency offset, and the first frequency offset is equal to the frequency interval between the boundary subcarrier in a resource grid for a subcarrier interval and the first reference frequency.

[0029] According to one aspect of this application, the method is characterized in that the target frequency band is the frequency band closest to the frequency band to which the first synchronous broadcast signal belongs in the frequency domain, and the first information indicates the offset value between the number of the target frequency band and the number of the frequency band to which the first synchronous broadcast signal belongs in the frequency domain.

[0030] According to one aspect of this application, the method is characterized in that the second synchronization broadcast signal carries a first identifier, the first identifier being a physical cell identifier; the first carrier is a carrier included in the cell using the first identifier, the first carrier being a carrier other than the carrier to which the second synchronization broadcast signal belongs, and the time and frequency synchronization of the first carrier being dependent on the second synchronization broadcast signal.

[0031] According to one aspect of this application, the above method is characterized in that the first synchronous broadcast signal indicates a first quantity value, and whether the first quantity value indicates the number of the target frequency band depends on the range of values ​​to which the first quantity value belongs.

[0032] This application discloses a first node for wireless communication, characterized in that it comprises:

[0033] A first receiver receives a first synchronous broadcast signal, the first synchronous broadcast signal carrying first information;

[0034] The first receiver receives the second synchronous broadcast signal;

[0035] The frequency domain resources occupied by the first synchronous broadcast signal and the second synchronous broadcast signal are different; the second synchronous broadcast signal belongs to the target frequency band in the frequency domain, and the first information indicates the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain.

[0036] This application discloses a second node for wireless communication, characterized in that it comprises:

[0037] A first transmitter sends a first synchronous broadcast signal, the first synchronous broadcast signal carrying first information;

[0038] The first transmitter sends a second synchronous broadcast signal;

[0039] The frequency domain resources occupied by the first synchronous broadcast signal and the second synchronous broadcast signal are different; the second synchronous broadcast signal belongs to the target frequency band in the frequency domain, and the first information indicates the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain. Attached Figure Description

[0040] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0041] Figure 1 A flowchart of a first synchronous broadcast signal and a second synchronous broadcast signal according to an embodiment of this application is shown;

[0042] Figure 2 A schematic diagram of a network architecture according to an embodiment of this application is shown;

[0043] Figure 3 A schematic diagram of a wireless protocol architecture for the user plane and control plane according to an embodiment of this application is shown;

[0044] Figure 4 A schematic diagram of a first node and a second node according to an embodiment of this application is shown;

[0045] Figure 5 A flowchart illustrating a wireless signal transmission process according to an embodiment of this application is shown;

[0046] Figure 6 A schematic diagram of multiple carriers according to an embodiment of this application is shown;

[0047] Figure 7 A schematic diagram of K1 frequency band combinations according to an embodiment of this application is shown;

[0048] Figure 8 A schematic diagram of a first frequency offset according to an embodiment of this application is shown;

[0049] Figure 9 A schematic diagram of a target frequency band according to an embodiment of this application is shown;

[0050] Figure 10 A schematic diagram of a first carrier according to an embodiment of this application is shown;

[0051] Figure 11 A schematic diagram of a first quantity value according to an embodiment of this application is shown;

[0052] Figure 12 A structural block diagram of a processing apparatus in a first node according to an embodiment of this application is shown;

[0053] Figure 13 A structural block diagram of a processing apparatus in a second node according to an embodiment of this application is shown. Detailed Implementation

[0054] The technical solution of this application will be further described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0055] Example 1

[0056] Example 1 illustrates a flowchart 100 of a first synchronous broadcast signal and a second synchronous broadcast signal according to an embodiment of this application, as shown in the attached diagram. Figure 1As shown. In the appendix Figure 1 In the diagram, each box represents a step. It is particularly important to emphasize that the order of the boxes in the diagram does not restrict the chronological order of the steps they represent.

[0057] In Embodiment 1, the first node in this application receives a first synchronous broadcast signal in step 101, the first synchronous broadcast signal carrying first information; the first node in this application receives a second synchronous broadcast signal in step 101; wherein, the frequency domain resources occupied by the first synchronous broadcast signal and the frequency domain resources occupied by the second synchronous broadcast signal are different; the second synchronous broadcast signal belongs to a target frequency band in the frequency domain, and the first information indicates the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain.

[0058] As an example, the first synchronous broadcast signal is a baseband signal or a radio frequency signal.

[0059] As one embodiment, the second synchronous broadcast signal is a baseband signal or a radio frequency signal.

[0060] As an example, the first synchronization broadcast signal includes only the synchronization signal (SS).

[0061] As an example, the first synchronization broadcast signal includes only the primary synchronization signal (PSS) and the secondary synchronization signal (SSS).

[0062] As one embodiment, the first synchronization broadcast signal includes a synchronization signal and a physical broadcast channel (PBCH).

[0063] As one embodiment, the first synchronization broadcast signal includes a primary synchronization signal, a secondary synchronization signal, and a physical broadcast channel.

[0064] As one embodiment, the first synchronization broadcast signal includes a primary synchronization signal, a secondary synchronization signal, a physical broadcast channel, and a demodulation reference signal (DMRS) for the physical broadcast channel.

[0065] As an example, the first synchronization broadcast signal is a synchronization signal block (SSB).

[0066] As an example, the first synchronization broadcast signal is a synchronization signal / physical broadcast channel block (SS / PBCH block).

[0067] As an example, the first synchronization broadcast signal is non-cell-defining.

[0068] As an example, the first synchronization broadcast signal is on a non-anchor carrier.

[0069] As one embodiment, the first synchronization broadcast signal is on a capacity carrier.

[0070] As one embodiment, the first synchronization broadcast signal is on a data carrier.

[0071] As one embodiment, the first synchronization broadcast signal is on a secondary carrier.

[0072] As one embodiment, the first synchronization broadcast signal is on a carrier that does not include system information block 1.

[0073] As one embodiment, the first synchronization broadcast signal is on a carrier that does not include a search space that can schedule system information blocks.

[0074] As one embodiment, the first synchronization broadcast signal is on a carrier that does not include the set of control resources associated with the search space that can be scheduled system information blocks.

[0075] As one embodiment, the first synchronization broadcast signal is on a carrier that does not include the control resource set (CORESET) for the common search space set (CSS) of the physical downlink control channel (PDCCH) of type 0.

[0076] As one embodiment, the first synchronization broadcast signal is on a carrier that does not include the physical broadcast channel.

[0077] As an example, the first synchronous broadcast signal indicates that system information block 1 does not exist.

[0078] As an example, the first synchronous broadcast signal indicates that the system information block does not exist.

[0079] As an example, the first synchronous broadcast signal indicates that the search space for the system information block that can be scheduled does not exist.

[0080] As an example, the first synchronous broadcast signal indicates that the set of control resources associated with the search space of the schedulable system information block does not exist.

[0081] As an example, the first synchronization broadcast signal indicates that the set of control resources for the common search space set of physical downlink control channels of type 0 does not exist.

[0082] As an example, the first synchronization broadcast signal indicates that the physical broadcast channel does not exist.

[0083] As an example, the first synchronization broadcast signal indicates that the first synchronization broadcast signal is a non-defined cell, or the first synchronization broadcast signal indicates that the first synchronization broadcast signal is on a non-anchor carrier, or the first synchronization broadcast signal indicates that the first synchronization broadcast signal is on a capacity carrier, or the first synchronization broadcast signal indicates that the first synchronization broadcast signal is on a data carrier, or the first synchronization broadcast signal indicates that the first synchronization broadcast signal is on a secondary carrier.

[0084] As one embodiment, the first information includes all or part of a higher-layer signaling or a physical-layer signaling.

[0085] As one embodiment, the first information includes all or part of an RRC (Radio Resource Control) layer signaling, or the first information includes all or part of a MAC (Medium Access Control) layer signaling.

[0086] As an example, the first information is broadcast.

[0087] As an example, the first information is cell-specific.

[0088] As one embodiment, the first information includes all or part of the master information block (MIB).

[0089] As one embodiment, the first information includes all or part of the physical layer information in the physical broadcast channel.

[0090] As one embodiment, the first information includes a portion of the main information block and all or part of the physical layer information in the physical broadcast channel.

[0091] As an example, the first information is k SSB The instruction information.

[0092] As one embodiment, the first information includes the sequence (or antenna port) information of the synchronization signal.

[0093] As one embodiment, the first information includes sequence information of the demodulation reference signal of the physical broadcast channel.

[0094] As one example, the first information includes the configuration information of the PDCCH.

[0095] As one example, the first information includes configuration information for the PDCCH that schedules SIB1.

[0096] As one embodiment, the first information includes configuration information for the control resource set.

[0097] As one embodiment, the first information includes configuration information of the search space.

[0098] As one embodiment, the first information includes configuration information for control resource set 0.

[0099] As one embodiment, the first information includes the configuration information of search space 0.

[0100] As one embodiment, the first information may include only an indication value, a parameter, or a field.

[0101] As one embodiment, the first information includes multiple indication values, multiple parameters, or multiple fields.

[0102] As one embodiment, the first information includes multiple sub-information.

[0103] As one embodiment, the first synchronous broadcast signal carrying first information includes: the first synchronous broadcast signal includes the first information.

[0104] As one embodiment, the first synchronous broadcast signal carrying first information includes: the first information being transmitted on the first synchronous broadcast signal.

[0105] As one embodiment, the first synchronous broadcast signal carrying first information includes: the first information being transmitted on a physical broadcast channel.

[0106] As one embodiment, the first synchronous broadcast signal carrying first information includes: the first information is transmitted through a sequence (or port information) of demodulation reference signals of a physical broadcast channel.

[0107] As one embodiment, the first synchronous broadcast signal carrying first information includes: the first information being transmitted through a sequence of synchronous signals.

[0108] As one embodiment, the first synchronization broadcast signal carrying first information includes: the first information being transmitted through a physical broadcast channel and a sequence of synchronization signals.

[0109] As one embodiment, the first synchronization broadcast signal carrying first information includes: the first information being transmitted sequentially through a demodulation reference signal and a synchronization signal of a physical broadcast channel.

[0110] As one embodiment, the first synchronous broadcast signal carrying first information includes: the first information is transmitted through a physical broadcast channel and a demodulation reference signal of the physical broadcast channel.

[0111] As an example, the first information includes both physical layer information and higher layer information carried by the physical broadcast channel. The higher layer portion of the first information remains unchanged for a certain period of time even when the physical layer information changes, thereby supporting the merging and processing of the higher layer information in the first information and improving the robustness and coverage performance of the transmission.

[0112] As an example, the first information only includes physical layer information or higher layer information of the physical broadcast channel, which is simple to design and reduces the amount of standardization work.

[0113] As an example, at least a portion of the first information is transmitted through a sequence of synchronization signals, thereby eliminating the need to transmit physical broadcast channels on carriers of undefined cells or non-anchor carriers, reducing signaling overhead and improving resource utilization.

[0114] As an example, at least a portion of the first information is transmitted through the demodulation reference signal of the physical broadcast channel. Although this increases the blind detection complexity of the user equipment, it can reduce the load on the physical broadcast channel and reduce signaling overhead.

[0115] As one embodiment, the second synchronization broadcast signal includes only a synchronization signal.

[0116] As one embodiment, the second synchronization broadcast signal includes only the primary synchronization signal and the secondary synchronization signal.

[0117] As one embodiment, the second synchronization broadcast signal includes only the physical broadcast channel. As a supplementary embodiment of the above, this approach has the advantage that multiple carriers can share the same synchronization signal for synchronization, avoiding redundant transmission of the synchronization signal and improving resource utilization.

[0118] As one embodiment, the second synchronization broadcast signal includes a synchronization signal and a physical broadcast channel (PBCH).

[0119] As one embodiment, the second synchronization broadcast signal includes a primary synchronization signal, a secondary synchronization signal, and a physical broadcast channel.

[0120] As one embodiment, the second synchronization broadcast signal includes a primary synchronization signal, a secondary synchronization signal, a physical broadcast channel, and a demodulation reference signal (DMRS) for the physical broadcast channel.

[0121] As an example, the second synchronization broadcast signal is a synchronization signal block (SSB).

[0122] As one embodiment, the second synchronization broadcast signal is a synchronization signal / physical broadcast channel block (SS / PBCH block).

[0123] As one example, the second synchronization broadcast signal is cell-defining.

[0124] As one embodiment, the second synchronization broadcast signal is on the anchor carrier.

[0125] As one embodiment, the second synchronization broadcast signal is on an access carrier.

[0126] As one embodiment, the second synchronization broadcast signal is on a control carrier.

[0127] As one embodiment, the second synchronization broadcast signal is on the primary carrier.

[0128] As one embodiment, the second synchronization broadcast signal is on a carrier including system information block 1.

[0129] As one embodiment, the second synchronization broadcast signal is on a carrier wave that includes a search space that can schedule system information blocks.

[0130] As one embodiment, the second synchronization broadcast signal is on a carrier wave that includes a set of control resources associated with a search space that can schedule system information blocks.

[0131] As one embodiment, the second synchronization broadcast signal is on a carrier that includes a control resource set (CORESET) comprising a common search space set (CSS) for the physical downlink control channel (PDCCH) of type 0.

[0132] As one embodiment, the second synchronization broadcast signal is on a carrier including the physical broadcast channel.

[0133] As an example, the second synchronous broadcast signal indicates the presence of system information block 1.

[0134] As one embodiment, the second synchronous broadcast signal indicates the presence of a system information block.

[0135] As one embodiment, the second synchronous broadcast signal indicates the existence of a search space for information blocks that can be scheduled in the system.

[0136] As one embodiment, the second synchronous broadcast signal indicates the existence of a set of control resources associated with the search space of the schedulable system information block.

[0137] As one embodiment, the second synchronization broadcast signal indicates the existence of a set of control resources for the common search space set of physical downlink control channels of type 0.

[0138] As one example, the second synchronization broadcast signal indicates the existence of a physical broadcast channel.

[0139] As one embodiment, the second synchronization broadcast signal indicates that the second synchronization broadcast signal is a cell defining signal, or the second synchronization broadcast signal indicates that the second synchronization broadcast signal is on an anchor carrier, or the second synchronization broadcast signal indicates that the second synchronization broadcast signal is on an access carrier, or the second synchronization broadcast signal indicates that the second synchronization broadcast signal is on a control carrier, or the second synchronization broadcast signal indicates that the second synchronization broadcast signal is on a primary carrier.

[0140] As one embodiment, the types of signals or channels included between the first synchronous broadcast signal and the second synchronous broadcast signal are completely identical. As a supplementary embodiment to the above, this approach offers the advantage of simple and uniform design, reducing the workload of standardization.

[0141] As one embodiment, the types of signals or channels included between the first synchronous broadcast signal and the second synchronous broadcast signal are not the same or not completely identical. As a supplementary embodiment to the above, this approach offers the advantage of design flexibility and improved resource utilization.

[0142] As one embodiment, the first synchronization broadcast signal and the second synchronization broadcast signal belong to the same cell. As a supplementary embodiment to the above, this simplifies the synchronization design and cell planning for single-cell multi-carrier systems.

[0143] As one embodiment, the first synchronization broadcast signal and the second synchronization broadcast signal may belong to two different cells. As a supplementary embodiment to the above, this approach offers the advantage of simultaneously supporting single-carrier multi-cell designs, enhancing flexibility.

[0144] As one embodiment, the frequency domain resources occupied by the first synchronous broadcast signal and the second synchronous broadcast signal are not the same, including: the frequency domain number of the first synchronous broadcast signal and the frequency domain number of the second synchronous broadcast signal are not equal.

[0145] As one embodiment, the fact that the frequency domain resources occupied by the first synchronous broadcast signal and the second synchronous broadcast signal are different includes: the center frequency of the first synchronous broadcast signal and the center frequency of the second synchronous broadcast signal are different.

[0146] As one embodiment, the frequency domain resources occupied by the first synchronous broadcast signal and the second synchronous broadcast signal are not the same, including: the carrier to which the first synchronous broadcast signal belongs and the carrier to which the second synchronous broadcast signal belongs are not the same.

[0147] As one embodiment, the frequency domain resources occupied by the first synchronous broadcast signal and the second synchronous broadcast signal are not the same, including: the frequency band to which the first synchronous broadcast signal belongs and the frequency band to which the second synchronous broadcast signal belongs are not the same.

[0148] As one embodiment, the frequency domain resources occupied by the first synchronous broadcast signal and the second synchronous broadcast signal are not the same, including: the raster of the first synchronous broadcast signal and the raster of the second synchronous broadcast signal are not the same.

[0149] As one embodiment, the frequency domain resources occupied by the first synchronous broadcast signal and the second synchronous broadcast signal are not the same, including: the GSCN (global synchronization channel number) of the first synchronous broadcast signal and the GSCN of the second synchronous broadcast signal are not equal.

[0150] As one embodiment, the fact that the frequency domain resources occupied by the first synchronous broadcast signal and the second synchronous broadcast signal are not the same includes that the frequency domain resources occupied by the first synchronous broadcast signal and the frequency domain resources occupied by the second synchronous broadcast signal are orthogonal.

[0151] As one embodiment, the fact that the frequency domain resources occupied by the first synchronous broadcast signal and the second synchronous broadcast signal are not the same includes that the frequency domain resources occupied by the first synchronous broadcast signal and the second synchronous broadcast signal do not completely overlap.

[0152] As one embodiment, the fact that the frequency domain resources occupied by the first synchronous broadcast signal and the second synchronous broadcast signal are not the same includes: the frequency domain resources mapped by the first synchronous broadcast signal and the frequency domain resources mapped by the second synchronous broadcast signal are not the same.

[0153] As one embodiment, the frequency domain resources occupied by the first synchronous broadcast signal and the second synchronous broadcast signal are not the same, including: the subcarriers occupied by the first synchronous broadcast signal and the subcarriers occupied by the second synchronous broadcast signal are not completely the same.

[0154] As one embodiment, the frequency domain resources occupied by the first synchronous broadcast signal and the frequency domain resources occupied by the second synchronous broadcast signal are not the same, including: the subcarrier spacing of the subcarriers occupied by the first synchronous broadcast signal and the subcarrier spacing of the subcarriers occupied by the second synchronous broadcast signal are not equal.

[0155] As one embodiment, the frequency domain resources occupied by the first synchronous broadcast signal and the second synchronous broadcast signal are not the same, including: the frequency range (FR) to which the first synchronous broadcast signal belongs is different from the frequency range to which the second synchronous broadcast signal belongs.

[0156] As an example, the target frequency band is a radio frequency band.

[0157] As an example, the target frequency band is a frequency band in frequency range 1 (FR1).

[0158] As an example, the target frequency band is the operating frequency band.

[0159] As an example, the target frequency band is a working frequency band supported by 6G.

[0160] As an example, the target frequency band is the frequency band specified by radio regulations.

[0161] As an example, the target frequency band is a frequency band that supports single-cell multi-carrier.

[0162] As one embodiment, the target frequency band is an FDD (Frequency-division Duplexing) band. As a supplementary embodiment to the above, limiting the target frequency band to an FDD band simplifies the design and ensures coverage.

[0163] As one embodiment, the target frequency band is a TDD (Time-division Duplexing) frequency band. As a supplementary embodiment of the above embodiment, supporting a target frequency band as a TDD frequency band expands application scenarios and improves flexibility.

[0164] As one embodiment, the second synchronous broadcast signal belonging to the target frequency band in the frequency domain includes: the frequency domain resources occupied (or mapped) by the second synchronous broadcast signal belonging to the target frequency band.

[0165] As one embodiment, the second synchronous broadcast signal belonging to the target frequency band in the frequency domain includes: the carrier to which the second synchronous broadcast signal belongs is a carrier included in the target frequency band.

[0166] As one embodiment, the second synchronous broadcast signal belonging to the target frequency band in the frequency domain includes: the resource block (or subcarrier) occupied (or mapped) by the second synchronous broadcast signal in the frequency domain belongs to the target frequency band.

[0167] As an example, the first synchronous broadcast signal also belongs to the target frequency band in the frequency domain.

[0168] As an example, the first synchronous broadcast signal belongs to a frequency band outside the target frequency band in the frequency domain.

[0169] As an example, whether the first synchronous broadcast signal and the second synchronous broadcast signal belong to the same frequency band depends on network planning or deployment requirements, and the standard does not define it.

[0170] As an example, the target frequency band number is the index or identifier of the target frequency band.

[0171] As an example, the target frequency band is numbered according to the order of the target frequency bands.

[0172] As an example, the target frequency band number is a predefined number for the target frequency band.

[0173] As an example, the target frequency band number is a number predefined in the 6G standard protocol.

[0174] As an example, the target frequency band is numbered in 6G.

[0175] As an example, the target frequency band number is an absolute number of the frequency band in 6G.

[0176] As an example, the target frequency band number is a frequency band number shared by 5G and 6G.

[0177] As an example, the target frequency band number is a positive integer.

[0178] As an example, the target frequency band is numbered by the letter "n" followed by a positive integer.

[0179] As an example, the target frequency band number is the number, order, or index of the target frequency band among multiple frequency bands.

[0180] As an example, the target frequency band number is the order or index of the absolute number of the target frequency band among the absolute numbers of multiple frequency bands.

[0181] As one embodiment, the target frequency band number is the sorting or index of the target frequency band among multiple frequency bands according to the absolute numbering in ascending order or descending order.

[0182] As an example, the target frequency band number is the sorting or index of the target frequency band in multiple frequency bands according to the numbering defined by the standard protocol in ascending or descending order.

[0183] As an example, the target frequency band number is the number, order, or index of the target frequency band in a frequency band combination, which includes multiple predefined or frequency range-dependent frequency bands.

[0184] As an example, the target frequency band number is the order or index of the absolute number of the target frequency band among the absolute numbers of all frequency bands included in a frequency band combination, wherein the frequency band combination includes multiple predefined frequency bands or frequency bands that depend on the frequency band range.

[0185] As an example, the target frequency band number is the number, order, or index of the target frequency band in a frequency band combination, and the frequency band combination includes multiple frequency bands supporting the same cell.

[0186] As an example, the target frequency band number is the sorting or index of the absolute number of the target frequency band among the absolute numbers of all frequency bands included in a frequency band combination, wherein the frequency band combination includes multiple frequency bands supporting the same cell.

[0187] As an example, the frequency domain number of the second synchronous broadcast signal is the number of a frequency occupied by the second synchronous broadcast signal in the frequency domain.

[0188] As an example, the frequency domain number of the second synchronous broadcast signal is the number of the center frequency occupied by the second synchronous broadcast signal in the frequency domain.

[0189] As an example, the frequency domain number of the second synchronous broadcast signal is the number of the boundary frequency occupied by the second synchronous broadcast signal in the frequency domain.

[0190] As an example, the frequency domain number of the second synchronous broadcast signal is the frequency number of the predefined position occupied by the second synchronous broadcast signal in the frequency domain.

[0191] As an example, the frequency domain number of the second synchronous broadcast signal is the number (or index) of the synchronization raster of the second synchronous broadcast signal.

[0192] As an example, the frequency domain number of the second synchronization broadcast signal is the GSCN (global synchronization channel number) of the second synchronization broadcast signal.

[0193] As one embodiment, the frequency domain number of the second synchronous broadcast signal is the order (or number) of the synchronization grid of the second synchronous broadcast signal among the multiple synchronization grids included in the target frequency band.

[0194] As one embodiment, the frequency domain number of the second synchronization broadcast signal is the order (or number) of the GSCN of the second synchronization broadcast signal among the multiple GSCNs included in the target frequency band.

[0195] As one embodiment, the frequency domain number of the second synchronous broadcast signal is the order (or number) of the synchronization grid of the second synchronous broadcast signal among multiple synchronization grids in a frequency band combination including the target frequency band.

[0196] As an example, the frequency domain number of the second synchronization broadcast signal is the GSCN of the second synchronization broadcast signal (the order (or number) of multiple GSCNs in a frequency band combination that includes the target frequency band).

[0197] As an example, the frequency domain number of a synchronous broadcast signal is the number of the frequency occupied by the synchronous broadcast signal in the frequency domain.

[0198] As an example, the frequency domain number of a synchronous broadcast signal is the number of the center frequency or boundary frequency occupied by the synchronous broadcast signal in the frequency domain.

[0199] As an example, the frequency domain number of a synchronous broadcast signal is the frequency number of the predefined position occupied by the synchronous broadcast signal in the frequency domain.

[0200] As an example, the frequency domain number of a synchronous broadcast signal is the number (or index or identifier) ​​of the synchronous grid of that synchronous broadcast signal.

[0201] As an example, the frequency domain number of a synchronous broadcast signal is the GSCN of that synchronous broadcast signal.

[0202] As one embodiment, the first information indicating the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain includes: all or part of the information included in the first information explicitly or implicitly indicating the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain.

[0203] As an example, the first information indicating the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain includes: the two fields or two parameters in the first information respectively indicate the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain.

[0204] As an example, the first information indicating the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain includes: the same domain or the same parameter in the first information simultaneously indicating the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain.

[0205] As an example, the first information indicating the target frequency band number and the second synchronous broadcast signal number in the frequency domain includes: the target frequency band number and the second synchronous broadcast signal number in the frequency domain are jointly encoded to generate a field in the first information or to generate a parameter indicated by the first information.

[0206] As one embodiment, the first information indicating the target frequency band number and the frequency domain number of the second synchronous broadcast signal includes: the target frequency band number and the frequency domain number of the second synchronous broadcast signal are one of a plurality of candidate number combinations, each of the plurality of candidate number combinations including at least one frequency band number and one frequency domain number of the synchronous broadcast signal; the first information indicates from the plurality of candidate number combinations a candidate number combination including the target frequency band number and the frequency domain number of the second synchronous broadcast signal.

[0207] As one embodiment, the first information indicating the target frequency band number and the second synchronous broadcast signal number in the frequency domain includes: multiple frequency band numbers and multiple synchronous broadcast signal frequency domain numbers arranged sequentially, the target frequency band number being one of the multiple frequency band numbers, and the second synchronous broadcast signal number in the frequency domain being one of the multiple synchronous broadcast signal frequency domain numbers; the first information indicates the sequence number or index corresponding to the target frequency band number and the second synchronous broadcast signal number in the frequency domain.

[0208] As one embodiment, the first information indicating the target frequency band number and the frequency domain number of the second synchronous broadcast signal includes: multiple frequency band numbers and multiple synchronous broadcast signal frequency domain numbers are arranged sequentially in the order of first the frequency band number and then the frequency domain number of the synchronous broadcast signal; the target frequency band number is one of the multiple frequency band numbers; and the second synchronous broadcast signal frequency domain number is one of the multiple synchronous broadcast signal frequency domain numbers; the first information indicates the sequence number or index corresponding to the target frequency band number and the second synchronous broadcast signal frequency domain number.

[0209] As one embodiment, the first information indicating the target frequency band number and the frequency domain number of the second synchronous broadcast signal includes: multiple frequency band numbers and multiple synchronous broadcast signal frequency domain numbers are arranged sequentially in the order of first the frequency domain number of the synchronous broadcast signal and then the frequency band number; the target frequency band number is one of the multiple frequency band numbers; and the second synchronous broadcast signal frequency domain number is one of the multiple synchronous broadcast signal frequency domain numbers; the first information indicates the sequence number or index corresponding to the target frequency band number and the second synchronous broadcast signal frequency domain number.

[0210] As an example, the first information indicating the target frequency band number and the frequency domain number of the second synchronization broadcast signal includes: the first information indicating that the carrier to which the first synchronization broadcast signal belongs is an undefined cell (or a non-anchor carrier, or does not include a system information block), and the information carried by the second synchronization broadcast signal other than the first information indicating the target frequency band number and the frequency domain number of the second synchronization broadcast signal.

[0211] As an example, the first information indicating the target frequency band number and the second synchronous broadcast signal number in the frequency domain includes: the first information indicating that the first synchronous broadcast signal is not associated with the search space (or control resource set) of the scheduling system information block 1, and the information carried by the second synchronous broadcast signal other than the first information indicating the target frequency band number and the second synchronous broadcast signal number in the frequency domain.

[0212] As one embodiment, the first information indicating the target frequency band number and the second synchronous broadcast signal number in the frequency domain includes: the first information and the PDCCH configuration information carried by the first synchronous broadcast signal together indicate the target frequency band number and the second synchronous broadcast signal number in the frequency domain.

[0213] As an example, the first information indicating the target frequency band number and the second synchronous broadcast signal number in the frequency domain includes: the first information and the PDCCH configuration information of the scheduling SIB1 carried by the first synchronous broadcast signal together indicate the target frequency band number and the second synchronous broadcast signal number in the frequency domain.

[0214] As one embodiment, the first information indicating the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain includes: the first information, the configuration information of the search space carried by the first synchronous broadcast signal, and the configuration information of the control resource set carried by the first synchronous broadcast signal together indicate the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain.

[0215] As one embodiment, the first information indicating the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain includes: the first information, the configuration information of the search space 0 carried by the first synchronous broadcast signal, and the configuration information of the control resource set 0 carried by the first synchronous broadcast signal together indicate the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain.

[0216] As an example, the first information indicating the target frequency band number and the second synchronous broadcast signal number in the frequency domain includes: the first information and the PDCCH configuration information carried by the first synchronous broadcast signal together indicate a target index value, and the target index value simultaneously indicates the target frequency band number and the second synchronous broadcast signal number in the frequency domain.

[0217] As one embodiment, the first information indicating the target frequency band number and the second synchronous broadcast signal number in the frequency domain includes: the first information and the PDCCH configuration information carried by the first synchronous broadcast signal respectively indicating the target frequency band number and the second synchronous broadcast signal number in the frequency domain.

[0218] As one embodiment, the first information indicating the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain includes: the first information indicating at least one of the range of values ​​for the number of the target frequency band or the range of values ​​for the number of the second synchronous broadcast signal in the frequency domain; the configuration information of the control resource set carried by the first synchronous broadcast signal indicating the number of the target frequency band from the range of values ​​for the number of the target frequency band; and the configuration information of the search space carried by the first synchronous broadcast signal indicating the number of the second synchronous broadcast signal in the frequency domain from the range of values ​​for the number of the second synchronous broadcast signal in the frequency domain.

[0219] As one embodiment, the first information indicating the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain includes: the first information indicating at least one of the candidate set of the number of the target frequency band or the candidate set of the number of the second synchronous broadcast signal in the frequency domain; the configuration information of the control resource set carried by the first synchronous broadcast signal indicating the number of the target frequency band from the candidate set of the number of the target frequency band; and the configuration information of the search space carried by the first synchronous broadcast signal indicating the number of the second synchronous broadcast signal in the frequency domain from the candidate set of the number of the second synchronous broadcast signal in the frequency domain.

[0220] As one embodiment, the first information indicating the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain includes: the first information indicating at least one of the range of values ​​for the number of the target frequency band or the range of values ​​for the number of the second synchronous broadcast signal in the frequency domain; the configuration information of the search space carried by the first synchronous broadcast signal indicating the number of the target frequency band from the range of values ​​for the number of the target frequency band; and the configuration information of the control resource set carried by the first synchronous broadcast signal indicating the number of the second synchronous broadcast signal in the frequency domain from the range of values ​​for the number of the second synchronous broadcast signal in the frequency domain.

[0221] As one embodiment, the first information indicating the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain includes: the first information indicating at least one of the candidate set of the number of the target frequency band or the candidate set of the number of the second synchronous broadcast signal in the frequency domain; the configuration information of the search space carried by the first synchronous broadcast signal indicating the number of the target frequency band from the candidate set of the number of the target frequency band; and the configuration information of the control resource set carried by the first synchronous broadcast signal indicating the number of the second synchronous broadcast signal in the frequency domain from the candidate set of the number of the second synchronous broadcast signal in the frequency domain.

[0222] As one embodiment, the first information indicating the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain includes: the first quantity value in this application indicating at least one of the range of values ​​for the number of the target frequency band or the range of values ​​for the number of the second synchronous broadcast signal in the frequency domain; the first information indicating the number of the target frequency band from the range of values ​​for the number of the target frequency band, and the first information indicating the number of the second synchronous broadcast signal in the frequency domain from the range of values ​​for the number of the second synchronous broadcast signal in the frequency domain.

[0223] As one embodiment, the first information indicating the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain includes: the first quantity value in this application indicating at least one of the candidate set of the number of the target frequency band or the candidate set of the number of the second synchronous broadcast signal in the frequency domain, the first information indicating the number of the target frequency band from the candidate set of the number of the target frequency band, and the first information indicating the number of the second synchronous broadcast signal in the frequency domain from the candidate set of the number of the second synchronous broadcast signal in the frequency domain.

[0224] As one embodiment, the first information indicating the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain includes: the first information indicating the offset value (or difference) between the number of the target frequency band and the number of the frequency band to which the first synchronous broadcast signal belongs, and the first information indicating the order (or sequence number, index, or identifier) ​​of the second synchronous broadcast signal in the target frequency band.

[0225] As an example, the first information indicating the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain includes: the first information indicating the order (or number or index) of the target frequency band in a combination of frequency bands that simultaneously includes the target frequency band and the frequency band to which the first synchronous broadcast signal belongs, and the first information indicating the order (or sequence number or index or identifier) ​​of the second synchronous broadcast signal in the target frequency band.

[0226] As one embodiment, the first information indicating the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain includes: the target frequency band belongs to a target combination, and the target combination includes multiple frequency bands; the first information indicates the order (or number or index) of the target frequency band among the multiple frequency bands included in the target combination, and the first information indicates the order (or sequence number or index or identifier) ​​of the second synchronous broadcast signal among the target frequency band. As a supplementary embodiment of the above embodiment, the multiple frequency bands included in the target combination are arranged in ascending or descending order according to the absolute number of the frequency bands. As a supplementary embodiment of the above embodiment, the multiple frequency bands included in the target combination are arranged in ascending or descending order according to the absolute frequency of the frequency bands. As a supplementary embodiment of the above embodiment, the synchronous broadcast signal is arranged in ascending or descending order according to the absolute number of the synchronous broadcast signal in the target frequency band. As a supplementary embodiment of the above embodiment, the synchronous broadcast signal is arranged in ascending or descending order according to the center frequency of the synchronous broadcast signal in the target frequency band. As a supplementary embodiment of the above embodiment, the first quantity value in this application indicates the target combination. As a supplementary embodiment of the above embodiment, the target combination is predefined. As a supplementary embodiment of the above embodiments, the target combination is frequency range-dependent. As a supplementary embodiment of the above embodiments, the order (or sequence number, index, or identifier) ​​of the second synchronization broadcast signal in the target frequency band is the order (or sequence number, index, or identifier) ​​of the frequency domain number of the second synchronization broadcast signal among the frequency domain numbers of all synchronization signals included in the target frequency band. As a supplementary embodiment of the above embodiments, both the target frequency band and the frequency band to which the first synchronization broadcast signal belongs in the frequency domain belong to the target combination. As a supplementary embodiment of the above embodiments, the advantage of both the target frequency band and the frequency band to which the first synchronization broadcast signal belongs in the frequency domain belonging to the target combination is that it further reduces the overhead of cross-band indication in single-cell multi-carrier scenarios. As a supplementary embodiment of the above embodiments, the frequency band to which the first synchronization broadcast signal belongs in the frequency domain may not belong to the target combination. As a supplementary embodiment of the above embodiments, the advantage of the frequency band to which the first synchronization broadcast signal belongs in the frequency domain not belonging to the target combination is that it simultaneously supports the indication of synchronization broadcast signals between different cells, enhancing flexibility while maintaining design uniformity.

[0227] As one embodiment, the first information indicating the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain includes: the target frequency band belongs to a target combination, and the target combination includes multiple frequency bands; the first information indicates the offset (or difference) between the order (or number or index) of the target frequency band in the multiple frequency bands included in the target combination and the order (or number or index) of the frequency band to which the second synchronous broadcast signal belongs in the frequency domain in the multiple frequency bands included in the target combination; the first information indicates the order (or sequence number or index or identifier) ​​of the second synchronous broadcast signal in the target frequency band. As a supplementary embodiment of the above embodiment, the multiple frequency bands included in the target combination are arranged in ascending or descending order according to the absolute number of the frequency bands. As a supplementary embodiment of the above embodiment, the multiple frequency bands included in the target combination are arranged in ascending or descending order according to the absolute frequency of the frequency bands. As a supplementary embodiment of the above embodiment, the synchronous broadcast signal is arranged in ascending or descending order according to the absolute number of the synchronous broadcast signal in the target frequency band. As a supplementary embodiment of the above embodiment, the synchronous broadcast signal is arranged in ascending or descending order according to the center frequency of the synchronous broadcast signal in the target frequency band. As an auxiliary embodiment of the above embodiments, the first quantity value in this application indicates the target combination. As an auxiliary embodiment of the above embodiments, the target combination is predefined. As an auxiliary embodiment of the above embodiments, the target combination is frequency range-dependent. As an auxiliary embodiment of the above embodiments, the order (or sequence number, index, or identifier) ​​of the second synchronization broadcast signal in the target frequency band is the order (or sequence number, index, or identifier) ​​of the frequency domain number of the second synchronization broadcast signal among the frequency domain numbers of all synchronization signals included in the target frequency band. As an auxiliary embodiment of the above embodiments, both the target frequency band and the frequency band to which the first synchronization broadcast signal belongs in the frequency domain belong to the target combination. As an auxiliary embodiment of the above embodiments, the advantage of both the target frequency band and the frequency band to which the first synchronization broadcast signal belongs in the frequency domain belonging to the target combination is to further reduce the overhead of cross-band indication in single-cell multi-carrier scenarios. As an auxiliary embodiment of the above embodiments, the frequency band to which the first synchronization broadcast signal belongs in the frequency domain may not belong to the target combination. As an additional embodiment of the above embodiments, the advantage of the first synchronization broadcast signal not belonging to the target combination in the frequency domain is that it can simultaneously support the indication of synchronization broadcast signals between different cells, enhancing flexibility while maintaining a unified design.

[0228] As one embodiment, the first information indicating the target frequency band number and the frequency domain number of the second synchronous broadcast signal includes: the target frequency band belongs to a target combination, the target combination is one of Q1 frequency band combinations, and each of the Q1 frequency band combinations includes at least one frequency band; the first information indicates the target combination from the Q1 frequency band combinations, and the first information indicates the order (or sequence number, index, or identifier) ​​of the second synchronous broadcast signal in the target combination, where Q1 is a positive integer greater than 1. As a supplementary embodiment of the above embodiment, the multiple frequency bands included in the target combination are arranged in ascending or descending order according to their absolute frequency band numbers. As a supplementary embodiment of the above embodiment, the multiple frequency bands included in the target combination are arranged in ascending or descending order according to their absolute frequencies. As a supplementary embodiment of the above embodiment, the synchronous broadcast signals are arranged in ascending or descending order according to their absolute frequencies in the target combination. As a supplementary embodiment of the above embodiment, the synchronous broadcast signals are arranged in ascending or descending order according to their center frequencies in the target combination. As an auxiliary embodiment of the above embodiments, the first quantity value in this application indicates the Q1 frequency band combinations. As an auxiliary embodiment of the above embodiments, the Q1 frequency band combinations are predefined. As an auxiliary embodiment of the above embodiments, the Q1 frequency band combinations are frequency range-dependent. As an auxiliary embodiment of the above embodiments, the order (or sequence number, index, or identifier) ​​of the second synchronization broadcast signal in the target combination is the order (or sequence number, index, or identifier) ​​of the GSCN (or grid number) of the second synchronization broadcast signal in all GSCNs (or grid numbers) included in all frequency bands included in the target combination. As an auxiliary embodiment of the above embodiments, each of the Q1 frequency band combinations includes the frequency band to which the first synchronization broadcast signal belongs in the frequency domain. As an auxiliary embodiment of the above embodiments, the advantage of each of the Q1 frequency band combinations including the frequency band to which the first synchronization broadcast signal belongs in the frequency domain is to further reduce the overhead of cross-band indication in single-cell multi-carrier scenarios. As an auxiliary embodiment of the above embodiments, there may be one frequency band combination among the Q1 frequency band combinations that does not all include the frequency band to which the first synchronization broadcast signal belongs in the frequency domain. As a supplementary embodiment of the above embodiments, the advantage of having one frequency band combination among the Q1 frequency band combinations that does not all include the frequency band to which the first synchronization broadcast signal belongs in the frequency domain is that it can simultaneously support the indication of synchronization broadcast signals between different cells, enhancing flexibility while maintaining a unified design.

[0229] As one embodiment, the first information indicating the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain includes: the target frequency band belongs to a target combination, the target combination is one of Q1 frequency band combinations, and each of the Q1 frequency band combinations includes at least one frequency band; the first information indicates the target combination from the Q1 frequency band combinations, the first information indicates the order (or sequence number, index, or identifier) ​​of the target frequency band in the target combination, the first information indicates the order (or sequence number, index, or identifier) ​​of the second synchronous broadcast signal in the target frequency band, and Q1 is a positive integer greater than 1. As a supplementary embodiment of the above embodiment, the multiple frequency bands included in the target combination are arranged in ascending or descending order according to the absolute number of the frequency bands. As a supplementary embodiment of the above embodiment, the multiple frequency bands included in the target combination are arranged in ascending or descending order according to the absolute frequency of the frequency bands. As a supplementary embodiment of the above embodiment, the synchronous broadcast signal is arranged in ascending or descending order according to the absolute number of the synchronous broadcast signal in the target frequency band. As an auxiliary embodiment of the above embodiments, the synchronous broadcast signals are arranged in ascending or descending order of their center frequencies in the target frequency band. As an auxiliary embodiment of the above embodiments, the first quantity value in this application indicates the Q1 frequency band combinations. As an auxiliary embodiment of the above embodiments, the Q1 frequency band combinations are predefined. As an auxiliary embodiment of the above embodiments, the Q1 frequency band combinations are frequency range-dependent. As an auxiliary embodiment of the above embodiments, the order (or sequence number, index, or identifier) ​​of the second synchronous broadcast signal in the target frequency band is the order (or sequence number, index, or identifier) ​​of the GSCN (or grid number) of the second synchronous broadcast signal among all GSCNs (or grid numbers) included in the target frequency band. As an auxiliary embodiment of the above embodiments, each of the Q1 frequency band combinations includes the frequency band to which the first synchronous broadcast signal belongs in the frequency domain. As an auxiliary embodiment of the above embodiments, the advantage of each of the Q1 frequency band combinations including the frequency band to which the first synchronous broadcast signal belongs in the frequency domain is that it further reduces the overhead of cross-band indication in single-cell multi-carrier scenarios. As a supplementary embodiment of the above embodiments, one of the Q1 frequency band combinations does not all include the frequency band to which the first synchronization broadcast signal belongs in the frequency domain. The advantage of having one frequency band combination among the Q1 frequency band combinations that does not all include the frequency band to which the first synchronization broadcast signal belongs in the frequency domain is that it simultaneously supports the indication of synchronization broadcast signals between different cells, enhancing flexibility while maintaining design uniformity.As an additional embodiment of the above embodiments, the first information indicates the offset (or difference) between the order (or numbering or index) of the target frequency band in the plurality of frequency bands included in the target combination and the order (or numbering or index) of the frequency band to which the second synchronization broadcast signal belongs in the frequency domain in the plurality of frequency bands included in the target combination.

[0230] As one embodiment, the second synchronization broadcast signal is a synchronization broadcast signal in a cell that includes more than one carrier.

[0231] As one example, the second synchronization broadcast signal is a synchronization broadcast signal in a cell that includes only one carrier.

[0232] As an example, the target frequency band is the frequency band closest to the frequency band to which the first synchronous broadcast signal belongs in the frequency domain.

[0233] As an example, the target frequency band is any one of the frequency band combinations that includes the frequency band to which the first synchronous broadcast signal belongs in the frequency domain.

[0234] As an example, the target frequency band is a frequency band that belongs to the same frequency range as the frequency band to which the first synchronous broadcast signal belongs in the frequency domain.

[0235] As an example, the target frequency band is a frequency band that belongs to a different frequency range than the frequency band to which the first synchronous broadcast signal belongs in the frequency domain.

[0236] Example 2

[0237] Example 2 illustrates a schematic diagram of a network architecture according to this application, as shown in the attached diagram. Figure 2 As shown. (Attached) Figure 2This diagram illustrates the network architecture 200 for 6G, 5G NR, 5G-Advanced, LTE (Long-Term Evolution), and LTE-A (Long-Term Evolution Advanced) systems. The 6G, 5G NR, or LTE network architecture 200 may be referred to as 6GS (6G System) / 5GS (5G System) / EPS (Evolved Packet System) 200 or some other suitable terminology. The 6GS / 5GS / EPS 200 may include one or more UEs (User Equipment) 201, NG-RAN (Next Generation Radio Access Network) 202, 6GC (6G Core Network) / 5GC (5G Core Network) / EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and Internet services 230. The 6GS / 5GS / EPS can interconnect with other access networks, but these entities / interfaces are not shown for simplicity. As shown in the figure, the 6GS / 5GS / EPS provides packet-switched services; however, those skilled in the art will readily understand that the various concepts presented throughout this application can be extended to networks providing circuit-switched services or other cellular networks. The NG-RAN includes network node 203 and other network nodes 204. Network node 203 provides user and control plane protocol termination toward UE 201. Network node 203 can connect to other network nodes 204 via backhaul. Network node 203 may also be referred to as eNB, gNB, base station, ground station, satellite base station, aircraft base station, base transceiver station, radio base station, radio transceiver, transceiver function, Basic Services Set (BSS), Extended Services Set (ESS), TRP (Transmitter Receiver Node), or some other suitable term. Network node 203 provides UE 201 with an access point to 6GC / 5GC / EPC210. ​​Examples of UE 201 include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptops, personal digital assistants (PDAs), satellite radios, non-terrestrial communications, satellite mobile communications, GPS, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, IoT devices, machine-type communication devices, land vehicles, automobiles, wearable devices, test equipment, RFID devices, electronic tags, sensor devices, test instruments, test tools, or any other similar functional devices.Those skilled in the art may also refer to UE201 as a mobile station, subscriber station, mobile unit, subscriber unit, radio unit, remote unit, mobile device, radio device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, radio terminal, remote terminal, handheld device, user agent, mobile client, client, or any other suitable term. Network node 203 is connected to 6GC / 5GC / EPC210 via the S1 / NG interface. 6GC / 5GC / EPC210 includes MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MME / AMF / SMF 214, S-GW (Service Gateway) / UPF (User Plane Function) 212, and P-GW (Packet Data Network Gateway) / UPF 213. The MME / AMF / SMF211 is the control node that handles signaling between UE201 and 6GC / 5GC / EPC210. ​​Essentially, the MME / AMF / SMF211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through the S-GW / UPF212, which is itself connected to the P-GW / UPF213. The P-GW provides UE IP address allocation and other functions. The P-GW / UPF213 is connected to Internet service 230. Internet service 230 includes operator-compliant Internet Protocol services, specifically including the Internet, intranet, IMS (IP Multimedia Subsystem), and packet-switched streaming services.

[0238] As an example, the UE201 corresponds to the first node in this application.

[0239] As an example, the UE201 supports multi-carrier transmission.

[0240] As an example, the network node 203 corresponds to the second node in this application.

[0241] As an example, the network node 203 supports multi-carrier transmission.

[0242] Example 3

[0243] Example 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture for a user plane and a control plane according to this application, as shown in the attached diagram. Figure 3 As shown. Figure 3 This is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane 350 and the control plane 300. Figure 3The radio protocol architecture for the control plane 300 used by the first and second nodes is illustrated in three layers: Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (Physical Layer) signal processing functions. The L1 layer will be referred to as PHY301 in this document. Layer 2 (L2 layer) 305 sits above PHY301 and is responsible for the link between the first and second nodes via PHY301. L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second node. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security through encrypted data packets and supports cross-regional mobility between the second and first nodes. RLC sublayer 303 provides upper-layer packet segmentation and reassembly, retransmission of lost packets, and packet reordering to compensate for out-of-order reception due to HARQ. MAC sublayer 302 provides multiplexing between the logical and transport channels. MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) within a cell among the first nodes. MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3) of the control plane 300 is responsible for acquiring radio resources (i.e., radio bearers) and configuring the lower layer using RRC signaling between the second and first nodes. The radio protocol architecture of user plane 350 includes Layer 1 (L1 layer) and Layer 2 (L2 layer). The radio protocol architecture for the first and second nodes in user plane 350 is largely the same as the corresponding layers and sublayers in control plane 300 for Physical Layer 351, PDCP sublayer 354 in L2 layer 355, RLC sublayer 353 in L2 layer 355, and MAC sublayer 352 in L2 layer 355. However, PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. L2 layer 355 in user plane 350 also includes SDAP (Service Data Adaptation Protocol) sublayer 356. SDAP sublayer 356 is responsible for mapping between QoS flows and Data Radio Bearers (DRBs) to support service diversity.Although not illustrated, the first node may have several upper layers above L2 layer 355, including a network layer (e.g., IP layer) terminating at the P-GW on the network side and an application layer terminating at the other end of the connection (e.g., remote UE, server, etc.).

[0244] As an example, Appendix Figure 3 The wireless protocol architecture described herein is applicable to the first node in this application.

[0245] As an example, Appendix Figure 3 The wireless protocol architecture described herein is applicable to the second node in this application.

[0246] As an example, the first synchronous broadcast signal in this application is generated by the RRC306, or MAC302, or MAC352, or PHY301, or PHY351.

[0247] As an example, the second synchronous broadcast signal in this application is generated by the RRC306, or MAC302, or MAC352, or PHY301, or PHY351.

[0248] As an example, the second information in this application is generated in the RRC306, or MAC302, or MAC352, or PHY301, or PHY351.

[0249] Example 4

[0250] Example 4 illustrates a schematic diagram of a first node and a second node according to an embodiment of this application, as shown in the attached diagram. Figure 4 As shown.

[0251] The first node (450) may include a controller / processor 490, a memory 480, a receiver processor 452, a transmitter / receiver 456 and a transmitter processor 455, the transmitter / receiver 456 including an antenna 460.

[0252] The second node (410) may include a controller / processor 440, a memory 430, a receiver processor 412, a transmitter / receiver 416 and a transmitter processor 415, the transmitter / receiver 416 including an antenna 420.

[0253] In the transmission from the second node (410) to the first node (450), upper-layer packets are provided to the controller / processor 440. The controller / processor 440 implements L2 layer and above functions. The controller / processor 440 provides header compression, encryption, packet segmentation and reordering, multiplexing between logic and transport channels, and radio resource allocation to the first node 450 based on various priority metrics. The controller / processor 440 is also responsible for HARQ operation, retransmission of lost packets, and higher-layer signaling to the first node 450. The higher-layer information carried by the first synchronous broadcast signal, the higher-layer information carried by the second synchronous broadcast signal, and the second information are generated in the controller / processor 440. The transmit processor 415 implements various signal processing functions for the L1 layer (i.e., the physical layer), including encoding, interleaving, scrambling, modulation, power control / allocation, precoding, and physical layer control signaling generation, such as the physical layer signal of the first synchronous broadcast signal, the physical layer signal of the second synchronous broadcast signal, and the physical layer signal carrying the second information, which are completed in the transmit processor 415. The generated modulation symbols are divided into parallel streams, and each stream is mapped to a corresponding multicarrier subcarrier and / or multicarrier symbol. These are then transmitted by the transmit processor 415 via the transmitter 416 to the antenna 420 as radio frequency (RF) signals. At the receiver, each receiver 456 receives the RF signal through its corresponding antenna 460. Each receiver 456 recovers the baseband information modulated onto the RF carrier and provides the baseband information to the receive processor 452. The receive processor 452 implements various signal reception processing functions of the L1 layer. These functions include receiving the physical layer signals of the first synchronous broadcast signal, the second synchronous broadcast signal, and the physical layer signal carrying the second information; demodulating the multicarrier symbols in the multicarrier symbol stream based on various modulation schemes (e.g., Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK)); subsequently descrambling, decoding, and deinterleaving to recover the data or control transmitted by the second node 410 on the physical channel; and then providing the data and control signals to the controller / processor 490. The controller / processor 490 is responsible for the L2 layer and above, and interprets higher-level information. This includes interpreting the higher-level information carried by the first synchronization broadcast signal, the higher-level information block carried by the second synchronization broadcast signal, and the second information. The controller / processor may be associated with a memory 480 that stores program code and data. The memory 480 may be referred to as a computer-readable medium.

[0254] As one embodiment, the first node 450 device includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor, and the first node device 450 device at least: receives a first synchronous broadcast signal, the first synchronous broadcast signal carrying first information; receives a second synchronous broadcast signal; the frequency domain resources occupied by the first synchronous broadcast signal and the frequency domain resources occupied by the second synchronous broadcast signal are different; the second synchronous broadcast signal belongs to a target frequency band in the frequency domain, and the first information indicates the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain.

[0255] As one embodiment, the first node 450 device includes: a memory storing a computer-readable instruction program that, when executed by at least one processor, produces actions including: receiving a first synchronous broadcast signal carrying first information; receiving a second synchronous broadcast signal; wherein the frequency domain resources occupied by the first synchronous broadcast signal and the frequency domain resources occupied by the second synchronous broadcast signal are different; the second synchronous broadcast signal belongs to a target frequency band in the frequency domain, and the first information indicates the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain.

[0256] As one embodiment, the second node 410 device includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The second node device 410 device at least: transmits a first synchronous broadcast signal, the first synchronous broadcast signal carrying first information; transmits a second synchronous broadcast signal; the frequency domain resources occupied by the first synchronous broadcast signal and the frequency domain resources occupied by the second synchronous broadcast signal are different; the second synchronous broadcast signal belongs to a target frequency band in the frequency domain, and the first information indicates the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain.

[0257] As one embodiment, the second node 410 includes: a memory storing a computer-readable instruction program that, when executed by at least one processor, produces actions including: sending a first synchronous broadcast signal carrying first information; sending a second synchronous broadcast signal; wherein the frequency domain resources occupied by the first synchronous broadcast signal and the frequency domain resources occupied by the second synchronous broadcast signal are different; the second synchronous broadcast signal belongs to a target frequency band in the frequency domain, and the first information indicates the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain.

[0258] As an example, the first node 450 is a user equipment (UE).

[0259] As an example, the first node 450 is a user equipment that supports multi-carrier transmission.

[0260] As one embodiment, the second node 410 is a base station device (gNB / eNB).

[0261] As an example, the second node 410 is a base station device that supports multi-carrier transmission.

[0262] As one embodiment, receiver 456 (including antenna 460), receiver processor 452 and controller / processor 490 are used to receive the first synchronous broadcast signal in this application.

[0263] As one embodiment, receiver 456 (including antenna 460), receiver processor 452 and controller / processor 490 are used to receive the second synchronization broadcast signal in this application.

[0264] As one embodiment, receiver 456 (including antenna 460), receiver processor 452 and controller / processor 490 are used to receive the second information in this application.

[0265] As one embodiment, transmitter 416 (including antenna 420), transmitter processor 415 and controller / processor 440 are used to transmit the first synchronous broadcast signal in this application.

[0266] As one embodiment, transmitter 416 (including antenna 420), transmitter processor 415 and controller / processor 440 are used to transmit the second synchronization broadcast signal in this application.

[0267] As one embodiment, transmitter 416 (including antenna 420), transmitter processor 415, and controller / processor 440 are used to transmit the second information in this application.

[0268] Example 5

[0269] Example 5 illustrates a wireless signal transmission flowchart according to an embodiment of this application, as shown in the attached diagram. Figure 5 As shown. In the appendix Figure 5 In this example, the second node N500 is the serving base station equipment of the first node U550. It should be noted that the order in this example does not limit the signal transmission order or the implementation order in this application.

[0270] for Second node N500In step S501, a first synchronous broadcast signal is sent; in step S502, a second synchronous broadcast signal is sent; and in step S503, a second message is sent.

[0271] for First node U550 In step S551, a first synchronous broadcast signal is received; in step S552, a second synchronous broadcast signal is received; and in step S553, second information is received.

[0272] In Embodiment 5, the first synchronous broadcast signal carries first information; the frequency domain resources occupied by the first synchronous broadcast signal and the frequency domain resources occupied by the second synchronous broadcast signal are different; the second synchronous broadcast signal belongs to the target frequency band in the frequency domain, and the first information indicates the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain; the second synchronous broadcast signal indicates a first reference frequency, and the second information indicates a first frequency offset, the first frequency offset being equal to the frequency spacing between the boundary subcarrier in a resource grid for a subcarrier spacing and the first reference frequency.

[0273] As one embodiment, the second information is transmitted via an air interface or a wireless interface.

[0274] As one embodiment, the second information includes all or part of a higher-layer signaling or a physical-layer signaling.

[0275] As one embodiment, the second information includes all or part of an RRC layer signaling, or the second information includes all or part of a MAC layer signaling.

[0276] As one example, the second information is broadcast.

[0277] As one example, the second information is cell-specific.

[0278] As one embodiment, the second information is user equipment-specific.

[0279] As an example, carrying the second information through cell-specific signaling can ensure a consistent carrier configuration across the entire cell, reducing network deployment complexity.

[0280] As an example, carrying the second information through user equipment-specific signaling can improve the flexibility of carrier configuration in the cell, make more effective use of resources, and reduce interference.

[0281] As one embodiment, the second information includes part or all of the system information block.

[0282] As an example, the second information is transmitted on the PDCCH (Physical Downlink Control Channel).

[0283] As one embodiment, the second information includes all or part of a field of a DCI (Downlink Control Information) signaling.

[0284] As an example, transmitting the second information via higher-level signaling can reduce signaling overhead.

[0285] As an example, transmitting the second information via physical layer signaling can improve the flexibility of carrier configuration and enable more dynamic switching or activation / deactivation of carriers, thereby reducing energy consumption.

[0286] As one example, the second information includes some or all of the fields in IE's "ServingCellConfig".

[0287] As one example, the second information includes some or all of the domains in IE's "ServingCellConfigCommon".

[0288] As one example, the second information includes some or all of the fields in the IE "ServingCellConfigCommonSIB".

[0289] As one example, the second information includes part or all of the information in the IE or the domain "FrequencyInfoDL-SIB".

[0290] As one example, the second information includes part or all of the information in the IE or the domain "FrequencyInfoUL-SIB".

[0291] As one example, the second information includes part or all of the information in the IE or the domain "FrequencyInfoDL".

[0292] As one example, the second information includes part or all of the information in the IE or the domain "FrequencyInfoUL".

[0293] As one embodiment, the second information includes some or all of the field “scs-SpecificCarrierList”.

[0294] As one embodiment, the second information includes some or all of the data in the field "CarrierList".

[0295] As one example, the second information includes part or all of the IE “Carrier”.

[0296] As an example, the first information precedes the second information.

[0297] As an example, the first information is later than the second information.

[0298] As an example, the first information and the second information belong to the same IE (Information Element).

[0299] As one embodiment, the second information may include only an indication value, a parameter, or a field.

[0300] As one embodiment, the second information includes multiple indication values, multiple parameters, or multiple fields.

[0301] As one embodiment, the second information includes multiple sub-information.

[0302] Example 6

[0303] Example 6 illustrates a schematic diagram of multiple carriers according to an embodiment of this application, as shown in the attached diagram. Figure 6 As shown. In the appendix Figure 6 In the diagram, the horizontal axis represents frequency, and each unfilled circular dome represents one of multiple carriers.

[0304] In Embodiment 6, the second synchronization broadcast signal in this application belongs to one of multiple carriers in the frequency domain. The multiple carriers belong to the same cell, and the system information block in the same cell to which the multiple carriers belong depends on the second synchronization broadcast signal.

[0305] As an example, using a single carrier as the anchor carrier in a single-cell multi-carrier scenario helps to flexibly utilize fragmented spectrum and improve resource utilization.

[0306] As an example, each of the plurality of carriers is a radio frequency (RF) carrier.

[0307] As one embodiment, each of the plurality of carriers is a baseband carrier.

[0308] As one embodiment, each of the plurality of carriers is a resource grid for a subcarrier interval.

[0309] As one embodiment, each of the plurality of carriers is a resource grid list.

[0310] As one embodiment, each of the plurality of carriers is a list of carriers with a specific subcarrier spacing.

[0311] As one embodiment, each of the plurality of carriers is a list of resource grids with a specific subcarrier spacing.

[0312] As one embodiment, each of the plurality of carriers is a resource block grid or a subcarrier grid for a subcarrier interval.

[0313] As an example, each of the plurality of carriers is a CC (component carrier).

[0314] As an example, each of the plurality of carriers is a carrier in carrier aggregation (CA).

[0315] As an example, each of the plurality of carriers is a carrier in Single Cell Carrier Aggregation (SCA).

[0316] As an example, each of the multiple carriers is a carrier in a single-cell multiple carrier.

[0317] As one example, each of the plurality of carriers is a radio frequency channel.

[0318] As an example, each of the plurality of carriers is a radio frequency channel after channelization.

[0319] As an example, each of the plurality of carriers is a channel with a certain radio frequency channel bandwidth.

[0320] As an example, each of the plurality of carriers represents the largest contiguous frequency domain resource available for a subcarrier interval within a frequency band.

[0321] As an example, each of the plurality of carriers is a continuous frequency range with a specific center frequency and bandwidth.

[0322] As one embodiment, each of the plurality of carriers is a basic physical resource unit in a wireless access network.

[0323] As an example, each of the plurality of carriers is the largest continuous frequency range that supports uplink or downlink data transmission in a radio frequency channel.

[0324] As an example, each pair of carriers is inter-band.

[0325] As an example, each pair of carriers is either inter-band or intra-band non-contiguous.

[0326] As an example, among the plurality of carriers, there are two carriers that are inter-band.

[0327] As one example, among the plurality of carriers, there are two carriers that are non-continuous within the same frequency band.

[0328] As an example, when multi-carrier aggregation is performed into a single cell, only cross-band or discontinuous scenarios are considered, reducing implementation and standard complexity.

[0329] As an example, among the plurality of carriers, there are two carriers that are contiguous in the same frequency band.

[0330] As an example, multi-carrier aggregation considers consecutive carriers even in the case of a single cell, providing greater flexibility for network deployment and carrier configuration.

[0331] As one embodiment, the plurality of carriers includes a primary carrier or an anchor carrier.

[0332] As an example, the carrier carrying SIB1 among the plurality of carriers is the main carrier (or anchor carrier).

[0333] As an example, the carrier among the plurality of carriers that has CORESET#0 (control resource set#0) or has an initial BWP (bandwidth part) is the primary carrier (or anchor carrier).

[0334] As an example, the multiple carriers all belong to the same frequency range (FR).

[0335] As an example, the plurality of carriers all belong to frequency range 1 (FR1).

[0336] As an example, restricting the multiple carriers to the same frequency range (at least in the initial version) effectively utilizes the existing main fragmented spectrum while reducing implementation complexity.

[0337] As one embodiment, the plurality of carriers includes two carriers that belong to different frequency ranges.

[0338] As an example, the multiple carriers are allowed to belong to different frequency ranges, which improves flexibility while ensuring forward compatibility.

[0339] As an example, the same mathematical structure is used on the multiple carriers.

[0340] As an example, the same subcarrier spacing is used on the multiple carriers.

[0341] As an example, restricting multiple carriers to use the same subcarrier spacing simplifies scheduling design.

[0342] As one example, two of the multiple carriers employ different subcarrier spacings.

[0343] As one example, this allows multiple carriers to use different subcarrier spacings, increasing flexibility and supporting a wider spectrum range.

[0344] As an example, all of the plurality of carriers are FDD (Frequency-division Duplexing) carriers.

[0345] As an example, all of the multiple carriers are TDD (Time-division Duplexing) carriers.

[0346] As an example, all of the multiple carriers are carriers in the FDD band.

[0347] As an example, all of the multiple carriers are carriers in the TDD band.

[0348] As one example, all carriers in the plurality of carriers have the same duplex mode.

[0349] As an example, (at least in the initial version) restricting the same duplex mode can simplify the design and reduce the amount of standardization work.

[0350] As one embodiment, the plurality of carriers includes two carriers employing different duplex modes.

[0351] As one embodiment, the plurality of carriers includes two carriers: an FDD carrier and a TDD carrier.

[0352] As an example, one of the multiple carriers is a flexible duplex carrier.

[0353] As an example, one of the multiple carriers is a full-duplex carrier.

[0354] As an example, one of the multiple carriers is a subband full-duplex (SBFD) carrier.

[0355] As an example, carriers with different duplex modes can be combined into the same cell, which improves flexibility, increases the utilization of fragmented spectrum, increases bandwidth, and expands network capacity.

[0356] As an example, all of the multiple carriers are downlink carriers in FDD.

[0357] As an example, all of the multiple carriers are either downlink or uplink carriers in an FDD.

[0358] As an example, it only supports downlink single-cell multi-carrier scenarios, which reduces the complexity requirements for user equipment and is beneficial to product implementation.

[0359] As an example, it supports multiple scenarios for downlink single cell and uplink single cell multi-carrier scenarios, improving flexibility and expanding applicable scenarios.

[0360] As one embodiment, the second synchronization broadcast signal belonging to one of a plurality of carriers in the frequency domain includes: the second synchronization broadcast signal being mapped in the frequency domain to one of the plurality of carriers.

[0361] As one embodiment, the second synchronous broadcast signal belonging to one of multiple carriers in the frequency domain includes: the frequency domain resources occupied by the second synchronous broadcast signal belonging to one of the multiple carriers.

[0362] As one embodiment, the second synchronization broadcast signal belonging to one of a plurality of carriers in the frequency domain includes: the second synchronization broadcast signal being used for time-frequency synchronization of one of the plurality of carriers.

[0363] As one embodiment, the multiple carriers belonging to the same cell include: the multiple carriers forming a cell.

[0364] As one embodiment, the multiple carriers belonging to the same cell include: a cell includes all the carriers of the multiple carriers.

[0365] As one embodiment, the multiple carriers belonging to the same cell include: the multiple carriers being assigned the same cell identifier (ID).

[0366] As one example, the multiple carriers belonging to the same cell include: the available frequency domain resources of a cell are distributed across the multiple carriers.

[0367] As one example, the multiple carriers belonging to the same cell include: channels or signals in a cell can be distributed across the multiple carriers.

[0368] As one embodiment, the multiple carriers belonging to the same cell include: a HARQ (Hybrid Automatic Repeat Request) entity that can be applied to the multiple carriers.

[0369] As one example, the multiple carriers belonging to the same cell includes: configuring the domain or IE of the multiple carriers to belong to the IE of a configured cell.

[0370] As one example, the multiple carriers belonging to the same cell include: the multiple carriers sharing the same cell identifier.

[0371] As one example, the multiple carriers belonging to the same cell include: the multiple carriers sharing the same synchronization signal.

[0372] As one example, the multiple carriers belonging to the same cell include: the multiple carriers sharing the same cell-specific information.

[0373] As one example, the multiple carriers belonging to the same cell include: the multiple carriers sharing the same SIB.

[0374] As an example, the frequency positions of subcarriers in a resource grid for a subcarrier interval on at least two of the plurality of carriers depend on the same reference frequency.

[0375] As an example, the frequency positions of subcarriers in a resource grid for a subcarrier interval on at least two of the plurality of carriers depend on the same frequency point A.

[0376] As one example, at least two of the plurality of carriers share the same frequency point A.

[0377] As one example, the target frequency band includes only one of the plurality of carriers.

[0378] As one embodiment, the target frequency band includes more than one of the plurality of carriers.

[0379] As one embodiment, the number of carriers among the plurality of carriers in the target frequency band depends on the number (or index) of the target frequency band.

[0380] As an example, the number of carriers in the target frequency band depends on network planning.

[0381] As one example, the number of carriers in the target frequency band depends on network deployment requirements.

[0382] As an example, the target frequency band includes a standard for the number of carriers among the plurality of carriers and is defined.

[0383] As an example, at least one of the plurality of carriers falls entirely within the target frequency band.

[0384] As an example, the system information blocks in the same cell to which the multiple carriers belong depend on the second synchronization broadcast signal, including: the system information blocks in the same cell to which the multiple carriers belong are related to the second synchronization broadcast signal.

[0385] As one embodiment, the system information block in the same cell to which the multiple carriers belong depends on the second synchronization broadcast signal, including: the second synchronization broadcast signal is used to determine the system information block in the same cell to which the multiple carriers belong.

[0386] As one embodiment, the system information block in the same cell to which the multiple carriers belong depends on the second synchronization broadcast signal includes: the system information block 1 in the same cell to which the multiple carriers belong depends on the second synchronization broadcast signal.

[0387] As one embodiment, the system information blocks in the same cell to which the plurality of carriers belong depend on the second synchronization broadcast signal include: at least one system information block in the same cell to which the plurality of carriers belong depends on the second synchronization broadcast signal.

[0388] As one embodiment, the system information blocks in the same cell to which the multiple carriers belong depend on the second synchronization broadcast signal, including: the scheduling information or scheduling channel of at least one system information block in the same cell to which the multiple carriers belong depends on the second synchronization broadcast signal.

[0389] As one embodiment, the system information blocks in the same cell to which the multiple carriers belong depend on the second synchronization broadcast signal, including: the time-frequency synchronization of the system information blocks in the same cell to which the multiple carriers belong depends on the second synchronization broadcast signal.

[0390] As one embodiment, the system information block in the same cell to which the multiple carriers belong depends on the second synchronization broadcast signal, including: the second synchronization broadcast signal is the synchronization broadcast signal of a defined cell in the same cell to which the multiple carriers belong.

[0391] As one embodiment, the system information block in the same cell to which the multiple carriers belong depends on the second synchronization broadcast signal, including: the second synchronization broadcast signal is the anchor synchronization broadcast signal in the same cell to which the multiple carriers belong.

[0392] As one embodiment, the system information block in the same cell to which the plurality of carriers belong depends on the second synchronization broadcast signal including: the second synchronization broadcast signal indicates that the same cell to which the plurality of carriers belong includes a system information block.

[0393] As one embodiment, the system information blocks in the same cell to which the multiple carriers belong depend on the second synchronization broadcast signal, including: the second synchronization broadcast signal configuring and scheduling the PDCCH of at least one system information block in the same cell to which the multiple carriers belong.

[0394] As one embodiment, the system information blocks in the same cell to which the multiple carriers belong depend on the second synchronization broadcast signal, including: the second synchronization broadcast signal configures a common search space set for physical downlink control channels of type 0.

[0395] As one embodiment, the system information blocks in the same cell to which the multiple carriers belong depend on the second synchronization broadcast signal, including: the second synchronization broadcast signal configuring the control resource set associated with the common search space set of physical downlink control channels of type 0.

[0396] As an example, the system information block in the same cell to which the plurality of carriers belong depends on the second synchronization broadcast signal, which indicates that one of the plurality of carriers includes at least one system information block in the same cell to which the plurality of carriers belong.

[0397] As an example, the system information block in the same cell to which the plurality of carriers belong depends on the second synchronization broadcast signal, which indicates that one of the plurality of carriers includes at least one system information block in the same cell to which the plurality of carriers belong.

[0398] As an example, the system information blocks in the same cell to which the plurality of carriers belong depend on the second synchronization broadcast signal, which indicates that one of the plurality of carriers includes a PDCCH that schedules at least one system information block in the same cell to which the plurality of carriers belong.

[0399] As an example, the system information blocks in the same cell to which the plurality of carriers belong depend on the second synchronization broadcast signal, which indicates that one of the plurality of carriers includes a set of physical downlink control channel common search spaces that schedule at least one system information block.

[0400] As one embodiment, the system information blocks in the same cell to which the plurality of carriers belong depend on the second synchronization broadcast signal, which indicates that one of the plurality of carriers includes a set of control resources associated with a set of physical downlink control channel common search spaces that schedules at least one system information block.

[0401] Example 7

[0402] Example 7 illustrates a schematic diagram of K1 frequency band combinations according to an embodiment of this application, as shown in the attached diagram. Figure 7 As shown. In the appendix Figure 7 In the table, the first column represents the number (or index) of the K1 frequency band combinations, and the second column represents the number (or index) of the frequency bands included in the corresponding frequency band combination.

[0403] In Embodiment 7, the target frequency band and the frequency band to which the first synchronous broadcast signal belongs in the frequency domain both belong to the first frequency band combination. The first frequency band combination is one of K1 frequency band combinations, and each of the K1 frequency band combinations includes at least the frequency band to which the first synchronous broadcast signal belongs in the frequency domain. The first information in this application indicates the first frequency band combination from the K1 frequency band combinations, the first information indicates the target frequency band from the first frequency band combination, and the first information indicates the number of the second synchronous broadcast signal in the target frequency band. K1 is a positive integer greater than 1.

[0404] As an example, by indicating the frequency domain position of the target frequency band and the second synchronous broadcast signal based on the K1 frequency band combinations, the design can be simplified and the complexity of user equipment can be reduced, while further reducing the overhead of indication signaling.

[0405] As an example, the first synchronous broadcast signal indicates whether the first synchronous broadcast signal belongs to the target frequency band.

[0406] As an example, the first synchronous broadcast signal indicates whether the first synchronous broadcast signal and the second synchronous broadcast signal belong to the same frequency band.

[0407] As an example, the first synchronization broadcast signal indicates whether the carrier to which the first synchronization broadcast signal belongs is a carrier in a multi-carrier system within a single cell or a carrier in a single-carrier system within a single cell.

[0408] As an example, the first synchronization broadcast signal indicates whether the physical cell identifier carried by the first synchronization broadcast signal is applicable to multiple carriers.

[0409] As one embodiment, the first synchronous broadcast signal indicates whether the first information indicates the frequency band number.

[0410] As an example, the first synchronous broadcast signal indicates the granularity of the second synchronous broadcast signal in the frequency domain.

[0411] As an example, the first synchronization broadcast signal indicates the number of carriers corresponding to (or associated with) the first synchronization broadcast signal.

[0412] As an example, the first synchronization broadcast signal indicates whether the first synchronization broadcast signal corresponds to (or is associated with) multiple carriers or corresponds to (or is associated with) only one carrier.

[0413] As an example, the frequency band to which the first synchronous broadcast signal belongs in the frequency domain is the frequency band to which the frequency domain resources occupied (or mapped) by the first synchronous broadcast signal belong.

[0414] As an example, the frequency band to which the first synchronous broadcast signal belongs in the frequency domain is the frequency band to which the carrier to which the first synchronous broadcast signal belongs belongs.

[0415] As an example, the first frequency band combination includes only the target frequency band and the frequency band to which the first synchronous broadcast signal belongs in the frequency domain.

[0416] As an example, the first frequency band combination also includes the target frequency band and the frequency band outside the frequency band to which the first synchronization broadcast signal belongs in the frequency domain.

[0417] As an example, the first frequency band combination includes only one frequency band.

[0418] As one embodiment, the first frequency band includes multiple frequency bands.

[0419] As an example, the target frequency band and the first synchronous broadcast signal belong to the same frequency band in the frequency domain.

[0420] As an example, the target frequency band and the first synchronous broadcast signal belong to different frequency bands in the frequency domain.

[0421] As an example, each of the K1 frequency band combinations includes at least one frequency band.

[0422] As an example, all the frequency bands included in each of the K1 frequency band combinations belong to the same frequency range.

[0423] As an example, one of the K1 frequency band combinations includes two frequency bands that belong to different frequency ranges.

[0424] As an example, all frequency band combinations in the K1 frequency band combinations include the same number of frequency bands.

[0425] As an example, the two frequency band combinations in the K1 frequency band combinations each include a different number of frequency bands.

[0426] As an example, the K1 frequency band combinations are ordered sequentially (or indexed sequentially).

[0427] As an example, the K1 frequency band combinations are sorted (or indexed) in ascending (or descending) order according to the minimum number of the included frequency band.

[0428] As an example, the K1 frequency band combinations are sorted (or indexed) in ascending (or descending) order according to the number of the smallest number of the included frequency bands. If the two smallest numbered frequency bands in the K1 frequency band combinations have the same number, they are sorted (or indexed) in ascending (or descending) order according to the number of the next smallest number of the frequency bands, and so on.

[0429] As an example, the K1 frequency band combinations are sorted (or indexed) in ascending (or descending) order according to the number of the frequency band with the largest number included.

[0430] As an example, the K1 frequency band combinations are sorted (or indexed) in ascending (or descending) order according to the number of the largest number of the included frequency bands. If the two largest numbered frequency bands in the K1 frequency band combinations have the same number, they are sorted (or indexed) in ascending (or descending) order according to the number of the second largest number of the frequency bands, and so on.

[0431] As an example, the K1 frequency band combinations are sorted (or indexed) in ascending (or descending) order of the lowest frequency bands included.

[0432] As an example, the K1 frequency band combinations are sorted (or indexed) in ascending (or descending) order of the lowest frequency bands included. If two lowest frequency bands in the K1 frequency band combinations are the same, they are sorted (or indexed) in ascending (or descending) order of the next lowest frequency band, and so on.

[0433] As an example, the K1 frequency band combinations are sorted (or indexed) in ascending (or descending) order of the frequency of the highest frequency band included.

[0434] As an example, the K1 frequency band combinations are sorted (or indexed) in ascending (or descending) order of the highest frequency bands included. If two highest frequency bands in the K1 frequency band combinations are the same, they are sorted (or indexed) in ascending (or descending) order of the second highest frequency band, and so on.

[0435] As one embodiment, the frequency bands in the first frequency band combination are sorted (or indexed) in ascending (or descending) order of frequency band number.

[0436] As an example, the frequency bands in the first frequency band combination are sorted (or indexed) in ascending (or descending) order of frequency.

[0437] As an example, the K1 frequency band combinations are K1 of the K0 predefined frequency band combinations that include the frequency band to which the first synchronization broadcast signal belongs in the frequency domain, where K0 is a positive integer greater than or equal to K1, and each of the K0 predefined frequency band combinations includes at least one frequency band.

[0438] As an example, the K1 frequency band combinations are K1 of the K0 frequency band combinations that depend on the frequency range, including the frequency band to which the first synchronization broadcast signal belongs in the frequency domain, where K0 is a positive integer greater than or equal to K1, and each of the K0 frequency band combinations that depends on the frequency range includes at least one frequency band.

[0439] As an example, the K1 frequency band combinations are K1 of the K0 frequency band combinations that depend on the number of characteristic frequency bands, including the frequency band to which the first synchronous broadcast signal belongs in the frequency domain, where K0 is a positive integer greater than or equal to K1, and each of the K0 frequency band combinations that depend on the number of characteristic frequency bands includes at least one frequency band, and the first synchronous broadcast signal indicates the number of characteristic frequency bands.

[0440] As one embodiment, the first information indicating the first frequency band combination from the K1 frequency band combinations includes: all or part of the first information explicitly or implicitly indicating the first frequency band combination from the K1 frequency band combinations.

[0441] As one embodiment, the first information indicating the first frequency band combination from the K1 frequency band combinations includes: the first information indicating the sequence number (or order or index) of the first frequency band combination in the K1 frequency band combinations.

[0442] As one embodiment, the first information indicating the target frequency band from the first frequency band combination includes: all or part of the first information explicitly or implicitly indicating the target frequency band from the first frequency band combination.

[0443] As one embodiment, the first information indicating the target frequency band from the first frequency band combination includes: the first information indicating the sequence number (or order or index) of the target frequency band in the first frequency band combination.

[0444] As one embodiment, the number of the second synchronous broadcast signal in the target frequency band is the sequence number (or order or index) of all synchronous broadcast signals that may be included in the target frequency band.

[0445] As one embodiment, the number of the second synchronous broadcast signal in the target frequency band is the sequence number (or order or index) of the center frequency of the second synchronous broadcast signal among the center frequencies of all synchronous broadcast signals included in the target frequency band.

[0446] As an example, the number of the second synchronization broadcast signal in the target frequency band is the sequence number (or order or index) of the synchronization raster number (or index) of the second synchronization broadcast signal among all the synchronization raster numbers (or indices) included in the target frequency band.

[0447] As one embodiment, the number of the second synchronization broadcast signal in the target frequency band is the sequence number (or order or index) of the GSCN of the second synchronization broadcast signal among all the GSCNs included in the target frequency band.

[0448] As one embodiment, the first information indicating the number of the second synchronous broadcast signal in the target frequency band includes: all or part of the first information explicitly or implicitly indicating the number of the second synchronous broadcast signal in the target frequency band.

[0449] As one embodiment, the first information indicating the number of the second synchronous broadcast signal in the target frequency band includes: all or part of the first information explicitly or implicitly indicating the position of the center frequency of the second synchronous broadcast signal in the target frequency band.

[0450] As one embodiment, the first information indicating the number of the second synchronous broadcast signal in the target frequency band includes: all or part of the first information explicitly or implicitly indicating the position of the boundary frequency of the second synchronous broadcast signal in the target frequency band.

[0451] Example 8

[0452] Example 8 illustrates a schematic diagram of a first frequency offset according to an embodiment of this application, as shown in the attached diagram. Figure 8 As shown. In the appendix Figure 8 In the diagram, the vertical axis represents frequency, the thick-lined rectangles represent a resource grid for a subcarrier interval, each thin-lined rectangle in the resource grid represents a subcarrier, the thin-lined rectangles filled with cross lines represent boundary subcarriers in the resource grid, and the first frequency offset is the frequency interval between this boundary subcarrier and the first reference frequency.

[0453] In Embodiment 8, the second synchronization broadcast signal in this application indicates a first reference frequency, and the second information in this application indicates a first frequency offset, which is equal to the frequency interval between the boundary subcarrier in a resource grid for a subcarrier interval and the first reference frequency.

[0454] As an example, the first reference frequency is frequency point A.

[0455] As an example, the first reference frequency is downlink frequency point A.

[0456] As an example, the first reference frequency is the uplink frequency point A.

[0457] As an example, the first reference frequency is an absolute frequency.

[0458] As an example, the first reference frequency is the absolute frequency represented by an ARFCN (Absolute Radio Frequency Channel Number) value.

[0459] As one embodiment, the first reference frequency is a reference frequency used to configure the resource grid.

[0460] As an example, the first reference frequency can be within or outside the configured resource grid.

[0461] As an example, the first reference frequency is the common reference point of the resource block grid.

[0462] As an example, the first reference frequency is the center frequency of subcarrier 0 in common resource block 0 (CRB).

[0463] As an example, the first reference frequency is the boundary frequency of subcarrier 0 in public resource block 0.

[0464] As one embodiment, the first reference frequency is a frequency that is commonly aligned by common resource blocks using different subcarrier spacings.

[0465] As an example, the first reference frequency is the center frequency or boundary frequency of subcarrier number 11 in the largest numbered common resource block (CRB).

[0466] As one embodiment, the second synchronous broadcast signal indicating the first reference frequency includes: all or part of the information carried by the second synchronous broadcast signal explicitly or implicitly indicating the first reference frequency.

[0467] As one embodiment, the second synchronous broadcast signal indicating the first reference frequency includes: the sequence of reference signals included in the second synchronous broadcast signal indicating the first reference frequency.

[0468] As one embodiment, the second synchronization broadcast signal indicating the first reference frequency includes: the synchronization signal sequence in the second synchronization broadcast signal indicating the first reference frequency.

[0469] As one embodiment, the second synchronization broadcast signal indicating the first reference frequency includes: the main information block carried by the second synchronization broadcast signal indicating the first reference frequency.

[0470] As one embodiment, the second synchronization broadcast signal indicating the first reference frequency includes: the physical layer information carried by the second synchronization broadcast signal indicating the first reference frequency.

[0471] As one embodiment, the second synchronous broadcast signal indicating the first reference frequency includes: the second synchronous broadcast signal indicating the first reference frequency and the frequency offset value (or frequency interval value) carrying the second synchronous broadcast signal.

[0472] As one embodiment, the second synchronization broadcast signal indicating the first reference frequency includes: the second synchronization broadcast signal indicating the ARFCN value corresponding to the first reference frequency.

[0473] As one embodiment, the second synchronization broadcast signal indicating the first reference frequency includes: the second synchronization broadcast signal indicating an index or number representing the first reference frequency.

[0474] As one embodiment, the second synchronous broadcast signal indicating the first reference frequency includes: the second synchronous broadcast signal indicating the index or number of the frequency band of the first reference frequency and the index or number of the first reference frequency in the corresponding frequency band.

[0475] As one embodiment, the second synchronization broadcast signal indicating the first reference frequency includes: the frequency offset (or frequency interval) between the first reference frequency and the boundary frequency of the resource block occupied by the second synchronization broadcast signal (whole or part of the resource block).

[0476] As one embodiment, the second synchronization broadcast signal indicating the first reference frequency includes: the second synchronization broadcast signal indicating the number of resource blocks or subcarriers between the first reference frequency and a synchronization signal or broadcast channel.

[0477] As one embodiment, the second synchronization broadcast signal indicating the first reference frequency includes: the second synchronization broadcast signal indicating the number of resource blocks or subcarriers spaced between the first reference frequency and an edge resource block or edge subcarrier occupied in whole or in part by a synchronization signal or broadcast channel.

[0478] As an example, the first frequency offset is equal to the frequency interval of at least one resource block.

[0479] As an example, the unit of the first frequency shift is Hertz.

[0480] As one embodiment, the first frequency offset is expressed as the number of subcarriers using a subcarrier interval.

[0481] As one embodiment, the first frequency offset is expressed in terms of the number of resource blocks using one subcarrier interval.

[0482] As an example, the first frequency offset is greater than or equal to 0.

[0483] As an example, limiting the first frequency offset to not less than 0 can support multiple carriers sharing the same resource grid, reduce resource fragmentation, and improve resource utilization.

[0484] As an example, the first frequency offset can be greater than 0 or less than 0.

[0485] As an example, the first frequency offset is not limited to being greater than 0 or less than 0, which can support multiple resource grids sharing the same reference frequency, improve resource configuration flexibility, and reduce implementation complexity.

[0486] As an example, a first frequency offset greater than 0 indicates the direction of frequency increase.

[0487] As an example, the first frequency offset being less than 0 indicates the direction of frequency decrease.

[0488] As an example, when the first frequency offset is greater than 0, the first frequency offset is a frequency offset in the direction of frequency increase.

[0489] As an example, when the first frequency offset is less than 0, the first frequency offset is a frequency offset in the direction of frequency decrease.

[0490] As an example, a first frequency offset greater than 0 indicates the direction of frequency decrease.

[0491] As an example, a first frequency offset less than 0 indicates the direction of frequency increase.

[0492] As an example, when the first frequency offset is greater than 0, the first frequency offset is a frequency offset in the direction of frequency decrease.

[0493] As an example, when the first frequency offset is less than 0, the first frequency offset is a frequency offset in the direction of frequency increase.

[0494] As one embodiment, the second information indicating the first frequency offset includes: all or part of the second information explicitly or implicitly indicating the first frequency offset.

[0495] As one embodiment, the second information indicating the first frequency offset includes: the second information indicating the value of the first frequency offset from a plurality of candidate offset values.

[0496] As one embodiment, the second information indicating the first frequency offset includes: the second information indicating the number of resource blocks using one subcarrier interval corresponding to the first frequency offset.

[0497] As one embodiment, the second information indicating the first frequency offset includes: the second information indicating the number of subcarriers with a subcarrier spacing corresponding to the first frequency offset.

[0498] As one embodiment, the second information indicating the first frequency offset includes the value of at least one parameter included in the second information indicating the first frequency offset.

[0499] As an example, the subcarrier spacing targeted by the second information is equal to an integer power of 2 of 15 kHz.

[0500] As one embodiment, the second information indicates the subcarrier spacing to which the second information is targeted.

[0501] As an example, the resource grid is a frequency domain resource grid.

[0502] As an example, the resource grid is a resource block grid.

[0503] As an example, the resource grid is a subcarrier grid.

[0504] As an example, the resource grid is the grid to which the resources occupied or allocated by downlink or uplink transmissions are followed.

[0505] As one example, a downlink channel (or signal) or an uplink channel (or signal) is transmitted in the resource grid.

[0506] As an example, the allocation of resources for downlink channels (or signals) or uplink channels (or signals) is performed in the resource grid.

[0507] As an example, the resource grid defines the minimum granularity of downlink or uplink resources.

[0508] As one embodiment, the first frequency offset equals the frequency spacing between the boundary subcarrier in a resource grid for a subcarrier interval and the first reference frequency, including: the first frequency offset is the frequency spacing between the center frequency (or boundary frequency) of the boundary subcarrier in a resource grid for a subcarrier interval and the first reference frequency.

[0509] As one embodiment, the first frequency offset being equal to the frequency spacing between the boundary subcarrier in a resource grid for a subcarrier interval and the first reference frequency includes: the first frequency offset being the frequency spacing between the upper boundary subcarrier in a resource grid for a subcarrier interval and the first reference frequency.

[0510] As one embodiment, the first frequency offset being equal to the frequency spacing between the boundary subcarrier in a resource grid for a subcarrier interval and the first reference frequency includes: the first frequency offset being the frequency spacing between the lower boundary subcarrier in a resource grid for a subcarrier interval and the first reference frequency.

[0511] As one embodiment, the first frequency offset equals the frequency interval between the boundary subcarrier in a resource grid for a subcarrier interval and the first reference frequency, including: the first frequency offset equals the difference between the center frequency (or boundary frequency) of the boundary subcarrier in a resource grid for a subcarrier interval and the first reference frequency.

[0512] As one embodiment, the first frequency offset equals the frequency interval between the boundary subcarrier in a resource grid for a subcarrier interval and the first reference frequency, including: the first frequency offset equals the first reference frequency minus the difference between the center frequency (or boundary frequency) of the boundary subcarrier in a resource grid for a subcarrier interval.

[0513] As one embodiment, the first frequency offset equals the frequency interval between the boundary subcarrier in a resource grid for a subcarrier interval and the first reference frequency, including: the first frequency offset is the frequency interval between the center frequency (or boundary frequency) of the boundary subcarrier in a resource grid for a subcarrier interval and the first reference frequency.

[0514] As one embodiment, the first frequency offset equals the frequency interval between the boundary subcarrier in a resource grid for a subcarrier interval and the first reference frequency, including: the first frequency offset is the frequency interval from the first reference frequency to the center frequency (or boundary frequency) of the boundary subcarrier in a resource grid for a subcarrier interval.

[0515] As an example, the frequency positions of subcarriers in the respective resource grids of at least two of the plurality of carriers in this application for the same subcarrier interval are all dependent on the first reference frequency.

[0516] As an example, the frequency positions of subcarriers in the same resource grid shared by at least two of the plurality of carriers in this application all depend on the first reference frequency.

[0517] As one embodiment, whether the first frequency offset refers to the frequency spacing between the upper boundary subcarrier in a resource grid of one subcarrier interval and the first reference frequency, or to the frequency spacing between the lower boundary subcarrier in a resource grid of one subcarrier interval and the first reference frequency, depends on the positional relationship between the resource grid and the first reference frequency in the frequency domain.

[0518] Example 9

[0519] Example 9 illustrates a schematic diagram of a target frequency band according to an embodiment of this application, as shown in the attached diagram. Figure 9 As shown. In the appendix Figure 9 In the diagram, the vertical axis represents frequency, each rectangle represents a frequency band, the rectangle filled with diagonal lines represents the frequency band to which the first synchronous broadcast signal belongs in the frequency domain, the rectangle filled with cross lines represents the target frequency band, and the rectangle filled with gray represents a candidate frequency band that may include the second synchronous broadcast signal.

[0520] In Embodiment 9, the target frequency band in this application is the frequency band closest to the frequency band to which the first synchronous broadcast signal in this application belongs in the frequency domain, and the first information in this application indicates the offset value between the number of the target frequency band and the number of the frequency band to which the first synchronous broadcast signal belongs in the frequency domain.

[0521] As an example, the target frequency band is limited to the frequency band closest to the frequency band to which the first synchronous broadcast signal belongs in the frequency domain. This allows the user equipment to abandon the detection of synchronous broadcast signals in intermediate frequency bands. At the same time, it supports the use of frequency band offset to indicate the target frequency band, reducing the complexity and power loss of the user equipment in searching for synchronous broadcast signals, and further reducing the indication signaling overhead.

[0522] As one embodiment, the target frequency band being the frequency band closest to the frequency band to which the first synchronous broadcast signal belongs in the frequency domain includes: the target frequency band being the frequency band with the smallest frequency interval between it and the frequency band to which the first synchronous broadcast signal belongs in the frequency domain.

[0523] As one embodiment, the target frequency band being the frequency band closest to the frequency band to which the first synchronous broadcast signal belongs in the frequency domain includes: the target frequency band being the frequency band with the smallest number interval between the number of the frequency band to which the first synchronous broadcast signal belongs in the frequency domain.

[0524] As one embodiment, the target frequency band being the frequency band closest to the frequency band to which the first synchronous broadcast signal belongs in the frequency domain includes: the target frequency band having the smallest frequency interval between it and the frequency band to which the first synchronous broadcast signal belongs in the frequency domain, and including the frequency band of the second synchronous broadcast signal.

[0525] As one embodiment, the target frequency band being the frequency band closest to the frequency band to which the first synchronous broadcast signal belongs in the frequency domain includes: the target frequency band having the smallest numbering interval between the numbering of the frequency band to which the first synchronous broadcast signal belongs in the frequency domain and including the frequency band of the second synchronous broadcast signal.

[0526] As an example, the target frequency band being the frequency band closest to the frequency band to which the first synchronization broadcast signal belongs in the frequency domain includes: the target frequency band being the frequency band with the smallest frequency interval between the target frequency band and the frequency band to which the first synchronization broadcast signal belongs in the frequency domain, and including the frequency band of the synchronization broadcast signal that defines the cell (or anchor point, or includes the configuration information of the PDCCH of the scheduling system information block, or includes the configuration information of the control resource set of the type 0 PDCCH CSS).

[0527] As an example, the target frequency band being the frequency band closest to the frequency band to which the first synchronization broadcast signal belongs in the frequency domain includes: the target frequency band being the frequency band with the smallest numbering interval between the numbering of the frequency band to which the first synchronization broadcast signal belongs in the frequency domain and including the frequency band of the synchronization broadcast signal that defines the cell (or anchor point, or includes the configuration information of the PDCCH of the scheduling system information block, or includes the configuration information of the control resource set of the PDCCH CSS of type 0).

[0528] As an example, the target frequency band being the frequency band closest to the frequency band to which the first synchronization broadcast signal belongs in the frequency domain includes: the target frequency band being the frequency band with the smallest frequency interval to the frequency band to which the first synchronization broadcast signal belongs in the frequency domain and including the main carrier (or the carrier defining the cell, or the anchor carrier, or the access carrier, or the control carrier, or the carrier including system information block 1, or the carrier including the control resource set associated with the search space that can schedule system information blocks, or the carrier including the control resource set for type 0 PDCCH CSS).

[0529] As an example, the target frequency band being the frequency band closest to the frequency band to which the first synchronization broadcast signal belongs in the frequency domain includes: the target frequency band being the frequency band with the smallest numbering interval between the numbering of the frequency band to which the first synchronization broadcast signal belongs in the frequency domain and including the primary carrier (or the carrier defining the cell, or the anchor carrier, or the access carrier, or the control carrier, or the carrier including system information block 1, or the carrier including the control resource set associated with the search space that can schedule system information blocks, or the carrier including the control resource set for type 0 PDCCH CSS).

[0530] As one embodiment, the target frequency band being the frequency band closest to the frequency band to which the first synchronous broadcast signal belongs in the frequency domain includes: the second frequency band being the frequency band to which the first synchronous broadcast signal belongs in the frequency domain, and the target frequency band being the frequency band with the smallest frequency interval between it and the second frequency band in the combination of frequency bands including the second frequency band.

[0531] As one embodiment, the target frequency band being the frequency band closest to the frequency band to which the first synchronous broadcast signal belongs in the frequency domain includes: the second frequency band being the frequency band to which the first synchronous broadcast signal belongs in the frequency domain, and the target frequency band being the frequency band with the smallest numbering interval between the numbering of the second frequency band and the frequency band in the combination of frequency bands including the second frequency band.

[0532] As one embodiment, the target frequency band being the frequency band closest to the frequency band to which the first synchronous broadcast signal belongs in the frequency domain includes: the second frequency band being the frequency band to which the first synchronous broadcast signal belongs in the frequency domain, and the target frequency band being the frequency band with the smallest frequency interval between it and the second frequency band in the combination of frequency bands including the second frequency band and including the second synchronous broadcast signal.

[0533] As one embodiment, the target frequency band being the frequency band closest to the frequency band to which the first synchronous broadcast signal belongs in the frequency domain includes: the second frequency band being the frequency band to which the first synchronous broadcast signal belongs in the frequency domain, and the target frequency band being the frequency band that includes the second synchronous broadcast signal and has the smallest numbering interval between the numbering of the second frequency band and the combination of frequency bands including the second frequency band.

[0534] As an example, the target frequency band being the frequency band closest to the frequency band to which the first synchronization broadcast signal belongs in the frequency domain includes: the second frequency band being the frequency band to which the first synchronization broadcast signal belongs in the frequency domain, and the target frequency band being the frequency band with the smallest frequency interval between the target frequency band and the second frequency band in the frequency band combination that includes the second frequency band and including the synchronization broadcast signal that defines the cell (or anchor point, or includes the configuration information of the PDCCH of the scheduling system information block, or includes the configuration information of the control resource set of type 0 PDCCHCSS).

[0535] As an example, the target frequency band being the frequency band closest to the frequency band to which the first synchronization broadcast signal belongs in the frequency domain includes: the second frequency band being the frequency band to which the first synchronization broadcast signal belongs in the frequency domain, and the target frequency band being the frequency band with the smallest numbering interval between the numbering of the second frequency band and the frequency band number in the frequency band combination that includes the synchronization broadcast signal that defines the cell (or anchor point, or configuration information of the PDCCH that includes the scheduling system information block, or configuration information of the control resource set of type 0 PDCCH CSS).

[0536] As an example, the target frequency band is the frequency band closest to the frequency band to which the first synchronization broadcast signal belongs in the frequency domain, including: the second frequency band is the frequency band to which the first synchronization broadcast signal belongs in the frequency domain, and the target frequency band is the frequency band with the smallest frequency interval between the second frequency band and the second frequency band in the frequency band combination that includes the second frequency band and includes the main carrier (or the carrier defining the cell, or the anchor carrier, or the access carrier, or the control carrier, or the carrier including system information block 1, or the carrier including the control resource set associated with the search space that can schedule system information blocks, or the carrier including the control resource set for type 0 PDCCH CSS).

[0537] As an example, the target frequency band being the frequency band closest to the frequency band to which the first synchronization broadcast signal belongs in the frequency domain includes: the second frequency band being the frequency band to which the first synchronization broadcast signal belongs in the frequency domain, and the target frequency band being the frequency band with the smallest numbering interval between the numbering of the second frequency band and the frequency band numbering of the combination of frequency bands including the second frequency band, and including the primary carrier (or the carrier defining the cell, or the anchor carrier, or the access carrier, or the control carrier, or the carrier including system information block 1, or the carrier including the control resource set associated with the search space that can schedule system information blocks, or the carrier including the control resource set for type 0 PDCCH CSS).

[0538] As an example, selecting the frequency band with the closest number allows user equipment that performs synchronous broadcast signal detection in numerical order to abandon the detection of synchronous broadcast signals on frequency bands with intermediate numbers, thereby reducing the complexity and power loss of user equipment searching for synchronous broadcast signals.

[0539] As an example, selecting the nearest frequency band allows user equipment that performs synchronous broadcast signal detection in frequency order to abandon the detection of synchronous broadcast signals in intermediate frequency bands, reducing the complexity and power loss of user equipment searching for synchronous broadcast signals.

[0540] As an example, the offset between the target frequency band number and the frequency band number to which the first synchronous broadcast signal belongs in the frequency domain is a positive integer.

[0541] As an example, the offset between the target frequency band number and the frequency band number to which the first synchronous broadcast signal belongs in the frequency domain is the numbering value of the interval between the target frequency band number and the frequency band number to which the first synchronous broadcast signal belongs in the frequency domain.

[0542] As an example, the offset between the target frequency band number and the frequency band number to which the first synchronous broadcast signal belongs in the frequency domain is the offset between the positive integer in the target frequency band number and the positive integer in the frequency band number to which the first synchronous broadcast signal belongs in the frequency domain.

[0543] As an example, the offset between the target frequency band number and the frequency band number to which the first synchronous broadcast signal belongs in the frequency domain is the difference between the positive integer in the target frequency band number and the positive integer in the frequency band number to which the first synchronous broadcast signal belongs in the frequency domain.

[0544] As an example, the offset between the target frequency band number and the frequency band number to which the first synchronous broadcast signal belongs in the frequency domain can be a positive or a negative number.

[0545] As an example, the offset between the target frequency band number and the frequency band number of the first synchronous broadcast signal in the frequency domain can be a positive number or a negative number, representing different numbering directions (ascending or descending) or frequency directions, respectively.

[0546] As one embodiment, the first information indicating the offset between the target frequency band number and the frequency band number to which the first synchronous broadcast signal belongs in the frequency domain includes: all or part of the first information explicitly or implicitly indicating the offset between the target frequency band number and the frequency band number to which the first synchronous broadcast signal belongs in the frequency domain.

[0547] As one embodiment, the first information indicating the offset value between the target frequency band number and the frequency band number to which the first synchronous broadcast signal belongs in the frequency domain includes: the first information indicating a target offset value, the target offset value being an integer, the offset value between the target frequency band number and the frequency band number to which the first synchronous broadcast signal belongs in the frequency domain being equal to the product between the target offset value and a target step size value, the target step size value being predefined, configured, or dependent on the frequency range.

[0548] As one embodiment, the first information indicating the offset between the target frequency band number and the frequency band number to which the first synchronous broadcast signal belongs in the frequency domain includes: the first information indicating the frequency range to which the target frequency band belongs; when the frequency range to which the target frequency band belongs and the frequency range to which the first synchronous broadcast signal belongs in the frequency domain are the same, the first information indicating the offset between the target frequency band number and the frequency band number to which the first synchronous broadcast signal belongs in the frequency domain; when the frequency range to which the target frequency band belongs and the frequency range to which the first synchronous broadcast signal belongs in the frequency domain are not the same, the first information indicating the offset between the target frequency band number and the frequency band number with the smallest (or largest) number in the frequency range to which the target frequency band belongs.

[0549] As one embodiment, the first information indicating the offset value between the target frequency band number and the frequency band number to which the first synchronous broadcast signal belongs in the frequency domain includes: the first information indicating the frequency range to which the target frequency band belongs; when the frequency range to which the target frequency band belongs and the frequency range to which the first synchronous broadcast signal belongs in the frequency domain are the same, the first information indicating the offset value between the target frequency band number and the frequency band number to which the first synchronous broadcast signal belongs in the frequency domain; when the frequency range to which the target frequency band belongs and the frequency range to which the first synchronous broadcast signal belongs in the frequency domain are not the same, the first information indicating the offset value between the target frequency band number and the frequency band number of the lowest (or highest) frequency in the frequency range to which the target frequency band belongs.

[0550] Example 10

[0551] Example 10 illustrates a schematic diagram of a first carrier according to an embodiment of this application, as shown in the attached diagram. Figure 10 As shown. In the appendix Figure 10 In the diagram, the horizontal axis represents frequency, each arc-shaped apex region represents a carrier, the carriers in the dashed box are those included in the cell identified by the first identifier, the arc-shaped apex region filled with diagonal lines represents the first carrier, and the gray-filled area represents the frequency domain resources occupied by the second synchronization signal.

[0552] In Embodiment 10, the second synchronization broadcast signal in this application carries a first identifier, which is a physical cell identifier; the first carrier is a carrier included in the cell using the first identifier, and the first carrier is a carrier other than the carrier to which the second synchronization broadcast signal belongs, and the time and frequency synchronization of the first carrier depends on the second synchronization broadcast signal.

[0553] As an example, the timing and frequency synchronization of the first carrier depends on the second synchronization broadcast signal, thereby making more efficient use of fragmented spectrum and improving spectrum utilization.

[0554] As an example, the first identifier is a non-negative integer.

[0555] As an example, the first identifier is one of 0 to 1007.

[0556] As one embodiment, the first identifier is value.

[0557] As an example, the first identifier is a physical layer cell identifier.

[0558] As one embodiment, the second synchronous broadcast signal carrying the first identifier includes: the second synchronous broadcast signal includes the first identifier.

[0559] As one embodiment, the second synchronous broadcast signal carrying the first identifier includes: the first identifier being transmitted on the second synchronous broadcast signal.

[0560] As one embodiment, the second synchronous broadcast signal carrying the first identifier includes: the first identifier being transmitted on the physical broadcast channel included by the second synchronous broadcast signal.

[0561] As one embodiment, the second synchronous broadcast signal carrying the first identifier includes: the first identifier being transmitted through a sequence (or port information) of demodulation reference signals of the physical broadcast channel included in the second synchronous broadcast signal.

[0562] As one embodiment, the second synchronous broadcast signal carrying the first identifier includes: the first identifier being transmitted through a sequence of synchronous signals included in the second synchronous broadcast signal.

[0563] As one embodiment, the second synchronization broadcast signal carrying the first identifier includes: the first identifier being transmitted through the sequence of physical broadcast channels and synchronization signals included in the second synchronization broadcast signal.

[0564] As one embodiment, the second synchronization broadcast signal carrying the first identifier includes: the first identifier being transmitted sequentially through the demodulation reference signal and the synchronization signal of the physical broadcast channel included in the second synchronization broadcast signal.

[0565] As one embodiment, the second synchronous broadcast signal carrying the first identifier includes: the first identifier being transmitted through the physical broadcast channel included in the second synchronous broadcast signal and the demodulation reference signal of the physical broadcast channel.

[0566] As an example, at least a portion of the first identifier is transmitted through a sequence of synchronization signals, allowing the user equipment to obtain the physical cell identifier earliest, thereby taking into account the influence of the physical cell identifier when decoding the physical broadcast channel and improving the robustness of the physical broadcast channel.

[0567] As an example, at least a portion of the first identifiers are transmitted via a physical broadcast channel or a demodulation reference signal of the physical broadcast channel, thereby increasing the number of available physical cell identifiers and providing greater flexibility for network planning.

[0568] As an example, the cell using the first identifier is the cell whose physical cell identifier is equal to the first identifier.

[0569] As an example, the cell using the first identifier is the cell represented (or identified) by the first identifier.

[0570] As an example, the cell using the first identifier is the cell that has been assigned the first identifier.

[0571] As one example, the cell employing the first identifier includes multiple carriers.

[0572] As an example, the cell using the first identifier is allocated multiple carriers.

[0573] As an example, the cell using the first identifier is formed by the aggregation of multiple carriers.

[0574] As an example, the cell using the first identifier operates on multiple carriers.

[0575] As an example, the cell using the first identifier is the same cell to which the multiple carriers in this application belong.

[0576] As an example, the cell using the first identifier is a cell composed of the plurality of carriers described in this application.

[0577] As an example, the carrier to which the second synchronization broadcast signal belongs is the carrier mapped in the frequency domain of the second synchronization broadcast signal.

[0578] As one embodiment, the carrier to which the second synchronous broadcast signal belongs is the carrier to which the frequency domain resources occupied by the second synchronous broadcast signal belong.

[0579] As an example, the cell identified by the first identifier includes only the carrier to which the first carrier and the carrier to which the second synchronization broadcast signal belong.

[0580] As one embodiment, the first identified cell includes cells other than the carrier to which the first carrier and the second synchronization broadcast signal belong.

[0581] As one embodiment, the first carrier is any carrier other than the carrier to which the second synchronization broadcast signal belongs in the cell using the first identifier.

[0582] As one embodiment, the first carrier is a carrier that meets given conditions, other than the carrier to which the second synchronization broadcast signal belongs in the cell using the first identifier.

[0583] As an example, the carriers to which the first carrier and the second synchronization broadcast signal belong are intra-band.

[0584] As an example, the carriers to which the first carrier and the second synchronization broadcast signal belong are contiguous.

[0585] As an example, the first carrier and the second synchronous broadcast signal belong to the same frequency band.

[0586] As an example, the carriers of the first carrier and the second synchronization broadcast signal belong to the same frequency range.

[0587] As an example, the first carrier and the carrier to which the second synchronization broadcast signal belongs can be processed by the same FFT.

[0588] As an example, the same FFT processor can be used between the first carrier and the carrier to which the second synchronization broadcast signal belongs.

[0589] As an example, restricting the specific relationship between two carriers that can share synchronization takes into account the impact on implementation and circuit design, reduces product complexity, and ensures product implementation.

[0590] As one example, the first carrier relies on the second synchronization broadcast signal for time and frequency synchronization.

[0591] As an example, the user equipment obtains the time and frequency synchronization of the first carrier based on the second synchronization broadcast signal.

[0592] As an example, the first carrier obtains its timing and carrier frequency based on the second synchronization broadcast signal.

[0593] As one embodiment, the first carrier obtains the frame boundaries and the DC frequency based on the second synchronization broadcast signal.

[0594] As an example, all channels or signals transmitted on the first carrier obtain the time-frequency resources they occupy according to the second synchronization broadcast signal.

[0595] As an example, the user equipment performs coarse synchronization on the first carrier based on the second synchronization broadcast signal.

[0596] As an example, the user equipment performs fine synchronization on the first carrier based on the second synchronization broadcast signal.

[0597] As one example, the user equipment performs coarse synchronization and fine synchronization on the first carrier according to the second synchronization broadcast signal.

[0598] As an example, the synchronization of the time and frequency obtained by the first carrier according to the second synchronization broadcast signal meets the synchronization accuracy requirement.

[0599] As an example, the user equipment performs time and frequency synchronization on the first carrier by performing time-domain correlation or frequency-domain correlation operations based on the second synchronization broadcast signal.

[0600] As an example, how the user equipment synchronizes time and frequency on the first carrier according to the second synchronization broadcast signal is left to the product implementation and is not defined by the standard.

[0601] Example 11

[0602] Example 11 illustrates a schematic diagram of a first quantity value according to an embodiment of this application, as shown in the attached diagram. Figure 11 As shown. In the appendix Figure 11 In this context, Φ represents the first quantitative value, each elliptical region represents a value range, each rectangular region represents the function of the first quantitative value corresponding to a value range, and the elliptical region filled with diagonal lines represents the value range corresponding to the indication of the target frequency band.

[0603] In Embodiment 11, the first synchronous broadcast signal in this application indicates a first quantity value, and whether the first quantity value indicates the number of the target frequency band in this application depends on the value range to which the first quantity value belongs.

[0604] As an example, the first quantity value is k. SSB value.

[0605] As an example, the first quantity value is a non-negative integer.

[0606] As an example, the first quantity value, within a certain range, is equal to the number of subcarriers between the lowest subcarrier of the lowest common resource block that overlaps with the first synchronization broadcast signal and the lowest indexed subcarrier occupied by the first synchronization broadcast signal.

[0607] As an example, the first quantity value, within a certain range, is equal to the number of subcarriers separated by a subcarrier interval between the lowest subcarrier of the lowest common resource block that overlaps with the first synchronization broadcast signal and the lowest indexed subcarrier occupied by the first synchronization broadcast signal.

[0608] As an example, the first quantity value, within a certain range, is equal to the number of subcarriers with a one-subcarrier interval between the lowest common resource block subcarrier that overlaps with the first synchronization broadcast signal and the lowest index subcarrier occupied by the first synchronization broadcast signal.

[0609] As one embodiment, the first synchronous broadcast signal indicating a first quantity value includes: the first synchronous broadcast signal explicitly or implicitly indicating the first quantity value.

[0610] As one embodiment, the first synchronous broadcast signal indicating a first quantity value includes: the first information includes the first quantity value.

[0611] As one embodiment, the first synchronous broadcast signal indicating a first quantity value includes: all or part of the MIB carried by the first synchronous broadcast signal indicating the first quantity value.

[0612] As one embodiment, the first synchronous broadcast signal indicating a first quantity value includes: the information carried by the physical broadcast signal included in the first synchronous broadcast signal indicating the first quantity value.

[0613] As one embodiment, the first synchronous broadcast signal indicating the first quantity value includes: the sequence of demodulation reference signals of the physical broadcast signals included in the first synchronous broadcast signal indicating the first quantity value.

[0614] As one embodiment, the first synchronous broadcast signal indicating a first quantity value includes: the sequence of synchronous signals included in the first synchronous broadcast signal indicating the first quantity value.

[0615] As one embodiment, the first synchronous broadcast signal indicating a first quantity value includes: the physical layer information and MIB carried by the physical broadcast signal included in the first synchronous broadcast signal are used to indicate the first quantity value.

[0616] As one embodiment, whether the first quantity value indicates the number of the target frequency band depends on the value range to which the first quantity value belongs, including: whether the first quantity value indicates the number of the target frequency band is related to the value range to which the first quantity value belongs.

[0617] As one embodiment, whether the first quantity value indicates the number of the target frequency band depends on the value range to which the first quantity value belongs, including: the value range to which the first quantity value belongs is used to determine whether the first quantity value indicates the number of the target frequency band.

[0618] As one embodiment, whether the first quantity value indicates the number of the target frequency band depends on the value range to which the first quantity value belongs, including: whether the first quantity value indicates the number of the target frequency band depends on the value interval to which the first quantity value belongs.

[0619] As one embodiment, whether the first quantity value indicates the number of the target frequency band depends on the value range to which the first quantity value belongs, including: the first quantity value is used to indicate the number of the target frequency band only when the first quantity value belongs to a predefined value range.

[0620] As one embodiment, whether the first quantity value indicates the number of the target frequency band depends on the value range to which the first quantity value belongs, including: when the first quantity value belongs to a predefined value range, the first quantity value is used to indicate the number of the target frequency band; when the first quantity value belongs to another value range, the first quantity value is not used to indicate the number of the target frequency band.

[0621] As one embodiment, whether the first quantity value indicates the number of the target frequency band depends on the value range to which the first quantity value belongs, including: when the first quantity value belongs to a predefined value range, the first quantity value is used to indicate the number of the target frequency band; when the first quantity value belongs to another value range, the first quantity value indicates the number of subcarriers with a one-subcarrier interval between the 0th subcarrier of the lowest common resource block that overlaps with the first synchronization broadcast signal and the lowest indexed subcarrier occupied by the first synchronization broadcast signal.

[0622] As one embodiment, whether the first quantity value indicates the number of the target frequency band depends on the value range to which the first quantity value belongs, including whether the cell to which the second synchronization broadcast signal belongs includes multiple carriers.

[0623] As one embodiment, whether the first quantity value indicates the number of the target frequency band depends on the value range to which the first quantity value belongs, including: the value range to which the first quantity value belongs is used to determine whether the cell includes more than one carrier.

[0624] As one embodiment, whether the first quantity value indicates the number of the target frequency band depends on the value range to which the first quantity value belongs, including: the value range to which the first quantity value belongs is used to determine whether it is operating in a single-cell multi-carrier mode.

[0625] As one embodiment, whether the first quantity value indicates the number of the target frequency band depends on the range of values ​​to which the first quantity value belongs, including: only when the first quantity value belongs to a predefined range of values, the cell to which the second synchronization broadcast signal belongs includes multiple carriers.

[0626] As one embodiment, whether the first quantity value indicates the number of the target frequency band depends on the value range to which the first quantity value belongs, including: when the first quantity value belongs to a predefined value range, the cell to which the second synchronization broadcast signal belongs includes multiple carriers; when the first quantity value belongs to another value range, the cell to which the second synchronization broadcast signal belongs includes only one carrier.

[0627] As one embodiment, whether the first quantity value indicates the number of the target frequency band depends on the value range to which the first quantity value belongs, including: when the first quantity value belongs to a predefined value range, the cell to which the second synchronization broadcast signal belongs includes multiple carriers, and the first quantity value is used to indicate that the number of the target frequency band depends on the cell to which the second synchronization broadcast signal belongs includes multiple carriers; when the first quantity value belongs to another value range, the cell to which the second synchronization broadcast signal belongs includes only one carrier.

[0628] As one example, whether the first quantity value indicates that the second synchronization broadcast signal is not included in a frequency range depends on the range of values ​​to which the first quantity value belongs.

[0629] As an example, when the first quantity value falls within a predefined range, the second synchronization broadcast signal does not exist within a frequency range.

[0630] As an example, when the first quantity value falls within a predefined range, the second synchronization broadcast signal does not exist within a GSCN range.

[0631] Example 12

[0632] Example 12 illustrates a structural block diagram of the processing device in the first node of an embodiment, as shown in the attached diagram. Figure 12 As shown. In the appendix Figure 12 In the first node processing device 1200, a first receiver 1201 is included. The first receiver 1201 includes the components specified in the appendix of this application. Figure 4 The transmitter / receiver 456 (including antenna 460), receiver processor 452, and controller / processor 490 are included.

[0633] In embodiment 12, the first receiver 1201 receives a first synchronous broadcast signal, which carries first information; the first receiver 1201 also receives a second synchronous broadcast signal; wherein the frequency domain resources occupied by the first synchronous broadcast signal and the frequency domain resources occupied by the second synchronous broadcast signal are different; the second synchronous broadcast signal belongs to a target frequency band in the frequency domain, and the first information indicates the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain.

[0634] As one embodiment, the second synchronization broadcast signal belongs to one of multiple carriers in the frequency domain, the multiple carriers belong to the same cell, and the system information block in the same cell to which the multiple carriers belong depends on the second synchronization broadcast signal.

[0635] As an example, the target frequency band and the frequency band to which the first synchronous broadcast signal belongs in the frequency domain both belong to a first frequency band combination. The first frequency band combination is one of K1 frequency band combinations. Each of the K1 frequency band combinations includes at least the frequency band to which the first synchronous broadcast signal belongs in the frequency domain. The first information indicates the first frequency band combination from the K1 frequency band combinations, the first information indicates the target frequency band from the first frequency band combination, and the first information indicates the number of the second synchronous broadcast signal in the target frequency band. K1 is a positive integer greater than 1.

[0636] As one embodiment, a first receiver 1201 receives second information; wherein the second synchronization broadcast signal indicates a first reference frequency, and the second information indicates a first frequency offset, the first frequency offset being equal to the frequency interval between a boundary subcarrier in a resource grid for a subcarrier interval and the first reference frequency.

[0637] As an example, the target frequency band is the frequency band closest to the frequency band to which the first synchronous broadcast signal belongs in the frequency domain, and the first information indicates the offset value between the number of the target frequency band and the number of the frequency band to which the first synchronous broadcast signal belongs in the frequency domain.

[0638] As one embodiment, the second synchronization broadcast signal carries a first identifier, which is a physical cell identifier; the first carrier is a carrier included in the cell using the first identifier, and the first carrier is a carrier other than the carrier to which the second synchronization broadcast signal belongs, and the time and frequency synchronization of the first carrier depends on the second synchronization broadcast signal.

[0639] As one embodiment, the first synchronous broadcast signal indicates a first quantity value, and whether the first quantity value indicates the number of the target frequency band depends on the value range to which the first quantity value belongs.

[0640] Example 13

[0641] Example 13 illustrates a structural block diagram of the processing device in the second node of an embodiment, as shown in the attached diagram. Figure 13 As shown. In the appendix Figure 13 In the second node processing device 1300, a first transmitter 1301 is included. The first transmitter 1301 includes the components specified in the appendix to this application. Figure 4 The transmitter / receiver 416 (including antenna 460), the transmitter processor 415, and the controller / processor 440 are included.

[0642] In embodiment 13, the first transmitter 1301 transmits a first synchronous broadcast signal, which carries first information; the first transmitter also transmits a second synchronous broadcast signal; wherein the frequency domain resources occupied by the first synchronous broadcast signal and the frequency domain resources occupied by the second synchronous broadcast signal are different; the second synchronous broadcast signal belongs to a target frequency band in the frequency domain, and the first information indicates the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain.

[0643] As one embodiment, the second synchronization broadcast signal belongs to one of multiple carriers in the frequency domain, the multiple carriers belong to the same cell, and the system information block in the same cell to which the multiple carriers belong depends on the second synchronization broadcast signal.

[0644] As an example, the target frequency band and the frequency band to which the first synchronous broadcast signal belongs in the frequency domain both belong to a first frequency band combination. The first frequency band combination is one of K1 frequency band combinations. Each of the K1 frequency band combinations includes at least the frequency band to which the first synchronous broadcast signal belongs in the frequency domain. The first information indicates the first frequency band combination from the K1 frequency band combinations, the first information indicates the target frequency band from the first frequency band combination, and the first information indicates the number of the second synchronous broadcast signal in the target frequency band. K1 is a positive integer greater than 1.

[0645] As one embodiment, a first transmitter 1301 transmits second information; wherein the second synchronization broadcast signal indicates a first reference frequency, and the second information indicates a first frequency offset, the first frequency offset being equal to the frequency interval between a boundary subcarrier in a resource grid for a subcarrier interval and the first reference frequency.

[0646] As an example, the target frequency band is the frequency band closest to the frequency band to which the first synchronous broadcast signal belongs in the frequency domain, and the first information indicates the offset value between the number of the target frequency band and the number of the frequency band to which the first synchronous broadcast signal belongs in the frequency domain.

[0647] As one embodiment, the second synchronization broadcast signal carries a first identifier, which is a physical cell identifier; the first carrier is a carrier included in the cell using the first identifier, and the first carrier is a carrier other than the carrier to which the second synchronization broadcast signal belongs, and the time and frequency synchronization of the first carrier depends on the second synchronization broadcast signal.

[0648] As one embodiment, the first synchronous broadcast signal indicates a first quantity value, and whether the first quantity value indicates the number of the target frequency band depends on the value range to which the first quantity value belongs.

[0649] Those skilled in the art will understand that all or part of the steps in the above methods can be implemented by a program instructing related hardware, and the program can be stored in a computer-readable storage medium, such as a read-only memory, hard disk, or optical disk. Optionally, all or part of the steps in the above embodiments can also be implemented using one or more integrated circuits. Correspondingly, each module unit in the above embodiments can be implemented in hardware or in the form of software functional modules. This application is not limited to any specific combination of software and hardware. The first node or second node or UE or terminal or device in this application includes, but is not limited to, mobile phones, tablets, laptops, network cards, low-power devices, eMTC devices, NB-IoT devices, Ambient IoT devices, RFID devices, reader devices, vehicle communication devices, aircraft, airplanes, drones, remote-controlled airplanes, testing devices, testing equipment, testing instruments, etc. The base station equipment or base station or network-side equipment in this application includes, but is not limited to, macrocell base stations, microcell base stations, home base stations, relay base stations, eNBs, gNBs, Transmitter Receiver Nodes (TRPs), relay satellites, satellite base stations, airborne base stations, testing devices, testing equipment, testing instruments, etc.

[0650] Those skilled in the art will understand that the present invention can be practiced in other specified forms without departing from its core or essential characteristics. Therefore, the embodiments disclosed herein should in any way be considered descriptive rather than restrictive. The scope of the invention is defined by the appended claims rather than the foregoing description, and all modifications within their equivalent meaning and scope are considered to be included therein.

Claims

1. A first node for wireless communication, characterized in that, include: A first receiver receives a first synchronous broadcast signal, the first synchronous broadcast signal carrying first information; The first receiver receives the second synchronous broadcast signal; The frequency domain resources occupied by the first synchronous broadcast signal and the second synchronous broadcast signal are different; the second synchronous broadcast signal belongs to the target frequency band in the frequency domain, and the first information indicates the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain.

2. The first node according to claim 1, characterized in that, The second synchronization broadcast signal belongs to one of multiple carriers in the frequency domain. The multiple carriers belong to the same cell, and the system information blocks in the same cell to which the multiple carriers belong depend on the second synchronization broadcast signal.

3. The first node according to claim 1 or 2, characterized in that, The target frequency band and the frequency band to which the first synchronous broadcast signal belongs in the frequency domain both belong to the first frequency band combination. The first frequency band combination is one of K1 frequency band combinations. Each of the K1 frequency band combinations includes at least the frequency band to which the first synchronous broadcast signal belongs in the frequency domain. The first information indicates the first frequency band combination from the K1 frequency band combinations. The first information indicates the target frequency band from the first frequency band combination. The first information indicates the number of the second synchronous broadcast signal in the target frequency band. K1 is a positive integer greater than 1.

4. The first node according to any one of claims 1 to 3, characterized in that, The first receiver receives second information; wherein the second synchronization broadcast signal indicates a first reference frequency, the second information indicates a first frequency offset, and the first frequency offset is equal to the frequency interval between the boundary subcarrier in a resource grid for a subcarrier interval and the first reference frequency.

5. The first node according to any one of claims 1 to 4, characterized in that, The target frequency band is the frequency band closest to the frequency band to which the first synchronous broadcast signal belongs in the frequency domain, and the first information indicates the offset value between the number of the target frequency band and the number of the frequency band to which the first synchronous broadcast signal belongs in the frequency domain.

6. The first node according to any one of claims 1 to 5, characterized in that, The second synchronization broadcast signal carries a first identifier, which is a physical cell identifier; the first carrier is a carrier included in the cell using the first identifier, and the first carrier is a carrier other than the carrier to which the second synchronization broadcast signal belongs, and the time and frequency synchronization of the first carrier depends on the second synchronization broadcast signal.

7. The first node according to any one of claims 1 to 6, characterized in that, The first synchronous broadcast signal indicates a first quantity value, and whether the first quantity value indicates the number of the target frequency band depends on the range of values ​​to which the first quantity value belongs.

8. A second node for wireless communication, characterized in that, include: A first transmitter sends a first synchronous broadcast signal, the first synchronous broadcast signal carrying first information; The first transmitter sends a second synchronous broadcast signal; The frequency domain resources occupied by the first synchronous broadcast signal and the second synchronous broadcast signal are different; the second synchronous broadcast signal belongs to the target frequency band in the frequency domain, and the first information indicates the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain.

9. A method for a first node in wireless communication, characterized in that, include: Receive a first synchronous broadcast signal, the first synchronous broadcast signal carrying first information; Receive the second synchronous broadcast signal; The frequency domain resources occupied by the first synchronous broadcast signal and the second synchronous broadcast signal are different; the second synchronous broadcast signal belongs to the target frequency band in the frequency domain, and the first information indicates the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain.

10. A method for a second node in wireless communication, characterized in that, include: Send a first synchronous broadcast signal, the first synchronous broadcast signal carrying first information; Send a second synchronous broadcast signal; The frequency domain resources occupied by the first synchronous broadcast signal and the second synchronous broadcast signal are different; the second synchronous broadcast signal belongs to the target frequency band in the frequency domain, and the first information indicates the number of the target frequency band and the number of the second synchronous broadcast signal in the frequency domain.

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