Wireless communication method and apparatus, and device, chip and storage medium

Abstract

A wireless communication method and apparatus, and a device, a chip and a storage medium, which relate to the technical field of communications. The method comprises: a terminal device receiving a first system message on the basis of a first SSB received in a first frequency-domain unit set, wherein the first SSB is used for receiving the first system message, and the first system message is used for determining a first control resource in a second frequency-domain unit set (310); and the terminal device receiving a second system message on the basis of the first control resource, wherein the first control resource is used for receiving the second system message, and the second system message is used for determining transmission configuration information corresponding to the second frequency-domain unit set (320). After receiving an SSB in a cell, a terminal device may receive different system messages on the basis of the SSB, and then use the different system messages to offload terminal devices having different capabilities or supporting different function groups or different vertical services to different frequency-domain resources, thereby helping to reduce the design complexity of a system.

Description

Wireless communication methods, devices, equipment, chips and storage media Technical Field

[0001] This application relates to the field of communication technology, and in particular to a wireless communication method, apparatus, device, chip, and storage medium. Background Technology

[0002] In a cell of an NR (New Radio) system, network equipment can use the same spectrum resources to serve any terminal device that supports any service (e.g., compact terminal, eMBB (Enhanced Mobile Broadband) terminal, or NTN (Non-Terrestrial Networks) terminal).

[0003] This leads to the complexity of NR system design. Optimizing system design and the initial access process for terminal devices within a cell remains a problem to be solved in future communication systems. Summary of the Invention

[0004] This application provides a wireless communication method, apparatus, device, chip, and storage medium. The technical solutions provided by this application are as follows.

[0005] According to one aspect of the embodiments of this application, a wireless communication method is provided, the method being executed by a terminal device, the method comprising:

[0006] Based on the first synchronization signal block (SSB) received in the first frequency domain unit set, a first system message is received, wherein the first SSB is used to receive the first system message, and the first system message is used to determine a first control resource in the second frequency domain unit set;

[0007] Based on the first control resource, a second system message is received, wherein the first control resource is used to receive the second system message, and the second system message is used to determine the transmission configuration information corresponding to the second frequency domain unit set.

[0008] According to one aspect of the embodiments of this application, a wireless communication method is provided, the method being performed by a network device, the method comprising:

[0009] Based on the first SSB sent in the first frequency domain unit set, a first system message is sent, wherein the first SSB is used by the terminal device to receive the first system message, and the first system message is used to determine the first control resource in the second frequency domain unit set;

[0010] Based on the first control resource, a second system message is sent, wherein the first control resource is used for the terminal device to receive the second system message, and the second system message is used to determine the transmission configuration information corresponding to the second frequency domain unit set.

[0011] According to one aspect of the embodiments of this application, a wireless communication device is provided, the device comprising:

[0012] The receiving module is configured to receive a first system message based on a first SSB received in a first frequency domain unit set, wherein the first SSB is used to receive the first system message, and the first system message is used to determine a first control resource in a second frequency domain unit set.

[0013] The receiving module is further configured to receive a second system message based on the first control resource, wherein the first control resource is configured to receive the second system message, and the second system message is configured to determine the transmission configuration information corresponding to the second frequency domain unit set.

[0014] According to one aspect of the embodiments of this application, a wireless communication device is provided, the device comprising:

[0015] The transmitting module is configured to transmit a first system message based on a first SSB transmitted in a first frequency domain unit set, wherein the first SSB is used by a terminal device to receive the first system message, and the first system message is used to determine a first control resource in a second frequency domain unit set;

[0016] The sending module is further configured to send a second system message based on the first control resource, wherein the first control resource is used by the terminal device to receive the second system message, and the second system message is used to determine the transmission configuration information corresponding to the second frequency domain unit set.

[0017] According to one aspect of the embodiments of this application, a communication device is provided, the communication device including a processor and a memory, the memory storing a computer program, the processor executing the computer program to implement the wireless communication method on the terminal device side or the wireless communication method on the network device side.

[0018] According to one aspect of the embodiments of this application, a computer-readable storage medium is provided, the storage medium storing a computer program, the computer program being executed by a processor to implement the wireless communication method on the terminal device side or the wireless communication method on the network device side described above.

[0019] According to one aspect of the embodiments of this application, a chip is provided, the chip including programmable logic circuits and / or program instructions, which, when the chip is running, are used to implement the wireless communication method on the terminal device side or the wireless communication method on the network device side.

[0020] According to one aspect of the embodiments of this application, a computer program product is provided, the computer program product including computer instructions stored in a computer-readable storage medium, wherein a processor reads from the computer-readable storage medium and executes the computer instructions to implement the wireless communication method on the terminal device side or the wireless communication method on the network device side described above.

[0021] The technical solutions provided in this application embodiment may have the following beneficial effects:

[0022] After receiving the SSB in the cell, the terminal device can receive different system messages based on the SSB, and then use the different system messages to divert terminal devices with different capabilities or supporting different functional groups or different vertical services to different frequency domain resources, thereby helping to reduce the design complexity of the system. Attached Figure Description

[0023] Figure 1 is a schematic diagram of a network architecture provided in one embodiment of this application;

[0024] Figure 2 is a schematic diagram of a fragmented spectrum provided in one embodiment of this application;

[0025] Figure 3 is a flowchart of a wireless communication method provided in an embodiment of this application;

[0026] Figure 4 is a schematic diagram of receiving a first system message based on SSB according to an embodiment of this application;

[0027] Figure 5 is a schematic diagram of receiving a first system message based on SSB according to another embodiment of this application;

[0028] Figure 6 is a schematic diagram of receiving a first system message based on SSB according to another embodiment of this application;

[0029] Figure 7 is a schematic diagram of a system message receiving based on SSB provided in an embodiment of this application;

[0030] Figure 8 is a schematic diagram of a terminal device receiving system messages according to an embodiment of this application;

[0031] Figure 9 is a schematic diagram of a terminal device receiving system messages according to another embodiment of this application;

[0032] Figure 10 is a schematic diagram of a terminal device receiving system messages according to another embodiment of this application;

[0033] Figure 11 is a flowchart of a wireless communication method provided in another embodiment of this application;

[0034] Figure 12 is a block diagram of a wireless communication device provided in an embodiment of this application;

[0035] Figure 13 is a block diagram of a wireless communication device provided in another embodiment of this application;

[0036] Figure 14 is a schematic diagram of the structure of a terminal device provided in an embodiment of this application;

[0037] Figure 15 is a schematic diagram of the structure of a network device provided in one embodiment of this application. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0039] The network architecture and business scenarios described in the embodiments of this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0040] The technical solutions of this application embodiment can be applied to various communication systems, such as: Global System for Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, evolution of NR system, LTE-based access to unlicensed spectrum (LTE-U) system, NR-based access to unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), and Wireless Fidelity (WF). Fidelity (WiFi), 5th-Generation (5G) systems, B5G (Beyound 5G) systems, 6th-Generation (6G) systems, or other communication systems.

[0041] Traditional communication systems typically support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication but also, for example, device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), vehicle-to-vehicle (V2V) communication, or vehicle-to-everything (V2X) communication. The embodiments of this application can also be applied to these communication systems.

[0042] The communication system in this application embodiment can be applied to carrier aggregation (CA) scenarios, dual connectivity (DC) scenarios, and standalone (SA) network deployment scenarios.

[0043] The communication system in this application embodiment can be applied to unlicensed spectrum, wherein unlicensed spectrum can also be considered as shared spectrum; or, the communication system in this application embodiment can also be applied to licensed spectrum, wherein licensed spectrum can also be considered as non-shared spectrum.

[0044] The embodiments of this application can be applied to both non-terrestrial networks (NTN) and terrestrial networks (TN). NTN typically uses satellite communication to provide communication services to terrestrial users. Currently, NTN systems include NR-NTN and IoT-NTN systems, and other NTN systems may be included in the future.

[0045] Please refer to Figure 1, which shows a schematic diagram of a network architecture 100 provided in one embodiment of this application. The network architecture 100 may include: a terminal device 10, an access network device 20, and a core network element 30.

[0046] Terminal device 10 can refer to UE (User Equipment), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, wireless communication device, user agent, or user equipment. In some embodiments, terminal device 10 can also be a cellular phone, cordless phone, SIP (Session Initiation Protocol) phone, WLL (Wireless Local Loop) station, PDA (Personal Digital Assistant), handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, vehicle-mounted device, wearable device, terminal device in 5GS (5th Generation System), or terminal device in the future evolved PLMN (Public Land Mobile Network), etc., and this application embodiment is not limited thereto. For ease of description, the devices mentioned above are collectively referred to as terminal devices. The number of terminal devices 10 is usually multiple, and one or more terminal devices 10 can be distributed within the cell managed by each access network device 20. Terminal equipment can also be simply referred to as terminal or UE, the meaning of which can be understood by those skilled in the art.

[0047] Access network device 20 is a device deployed in an access network to provide wireless communication functionality to terminal device 10. Access network device 20 may include various forms of macro base stations, micro base stations, relay stations, access points, etc. In systems employing different wireless access technologies, the name of the device with access network device functionality may differ; for example, in a 5G NR system, it is called gNodeB or gNB. As communication technologies evolve, the name "access network device" may change. For ease of description, in this embodiment, the aforementioned devices providing wireless communication functionality to terminal device 10 are collectively referred to as access network devices. In some embodiments, a communication relationship can be established between terminal device 10 and core network element 30 through access network device 20. For example, in an LTE (Long Term Evolution) system, access network device 20 may be one or more eNodeBs in an EUTRAN (Evolved Universal Terrestrial Radio Access Network) or EUTRAN; in a 5G NR system, access network device 20 may be one or more gNBs in a RAN (Radio Access Network). In the embodiments of this application, unless otherwise specified, the term "network device" refers to access network device 20, such as a base station.

[0048] Core network element 30 is a network element deployed in the core network. Its main functions are to provide user connectivity, manage users, and bear services, serving as an interface to external networks. For example, core network elements in a 5G NR system may include AMF (Access and Mobility Management Function) entities, UPF (User Plane Function) entities, and SMF (Session Management Function) entities.

[0049] In some embodiments, the access network device 20 and the core network element 30 communicate with each other via some air interface technology, such as the NG interface in a 5G NR system. The access network device 20 and the terminal device 10 communicate with each other via some air interface technology, such as the Uu interface.

[0050] The "5G NR system" in this application embodiment can also be referred to as a 5G system or an NR system, but those skilled in the art will understand its meaning. The technical solutions described in this application embodiment can be applied to LTE systems, 5G NR systems, and subsequent evolution systems of 5G NR systems (such as B5G (Beyond 5G, a fifth-generation mobile communication technology) systems, 6G systems (6th Generation System, a sixth-generation mobile communication system)), and other communication systems such as NB-IoT (Narrow Band Internet of Things) systems. This application does not limit these applications.

[0051] In this embodiment, the network device can provide services to a cell. The terminal device communicates with the network device through the transmission resources (e.g., frequency domain resources, or spectrum resources) on the carrier used by the cell. The cell can be the cell corresponding to the network device (e.g., a base station). The cell can belong to a macro base station or to a base station corresponding to a small cell. The small cell can include: metro cell, micro cell, pico cell, femto cell, etc. These small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-speed data transmission services.

[0052] The initial access process and fragment spectrum aggregation in the NR system are described below. The following related technologies are optional solutions and can be arbitrarily combined with the technical solutions of the embodiments of this application, all of which fall within the protection scope of the embodiments of this application. The embodiments of this application include at least some of the following contents.

[0053] 1. Initial Access Procedure in NR System

[0054] In NR systems, the initial access process for terminal devices can be completed by detecting synchronization signal blocks (SSBs or SS / PBCH blocks) on the GSCN (Global Synchronization Channel Number) (also known as the Sync Raster). During the initial access process, the terminal device determines the possible time-frequency locations of SSBs using a predefined set of GSCNs, attempts to search for SSBs, and obtains time and frequency synchronization, radio frame timing, and cell IDs (identifiers) through the detected SSBs.

[0055] After detecting an SSB, the terminal device can determine the configuration of the Type0-PDCCH (Physical Downlink Control Channel) CSS (Common Search Space) set through the MIB (Master Information Block) message in the SSB. The terminal device can receive the network device's scheduling of SIB1 (System Information Block) messages by listening to the Type0-PDCCH CSS set. Both the MIB and SIB1 messages include the serving cell's system configuration information. Furthermore, the terminal device can receive the network device's scheduling of other system messages besides SIB1 messages by listening to the Type0A-PDCCH CSS set, receive the network device's scheduling of paging messages by listening to the Type2-PDCCH CSS set, and receive the Paging Early Indication (PEI) information for paging messages sent by the network device by listening to the Type2A-PDCCH CSS set.

[0056] The terminal device can also obtain the resource configuration of PRACH (Physical Random Access Channel) transmission opportunities (RO) during the random access process based on the received system message SIB1 from the cell. Based on the RO resources configured by the network device, the terminal device can initiate random access to the network device or request the sending of system messages.

[0057] 2. Fragmented Spectrum Aggregation

[0058] In low-frequency bands across different countries or regions, multiple fragmented spectrum block resources exist, as shown in Figure 2. In Figure 2, identical fills indicate spectrum used by the same operator, and each block represents a spectrum size of 5MHz. The first row of Figure 2 shows the spectrum block resources of multiple fragments corresponding to PCS (Personal Communications Service). The second row shows the spectrum block resources of multiple fragments corresponding to BRS (Broadband Radio Service). The third row shows the spectrum block resources of multiple fragments corresponding to AWS (Advanced Wireless Service). Each fragmented spectrum block can be viewed as a CC (Component Carrier), meaning one CC corresponds to a continuous segment of spectrum resources.

[0059] In NR system deployment, each carrier cluster (CC) is networked as a cell. In NR systems, the number of radio frequency chains (RF chains) supported by terminal devices is limited and unlikely to increase significantly. Since each CC requires an independent RF link, the data transmission rate of the terminal device is limited by the number of CCs supporting carrier aggregation (CA). To utilize the spectrum resources of multiple fragments in low-frequency bands, NR systems have begun to explore the scenario of multiple carriers sharing a single RF link. For example, for multiple CCs in a single downlink band with a frequency range of less than or equal to 100MHz, RF link sharing can be used for data transmission. This allows the terminal device to support data transmission with the same bandwidth as before using fewer RF links, thereby enabling the terminal device to support data transmission with a larger bandwidth without increasing the number of RF links, thus improving the data transmission rate. When designing future wireless communication systems, such as 6G communication systems, it is also necessary to consider the fragment spectrum aggregation feature to design a wireless communication system that rationally utilizes this spectrum aggregation characteristic. For example, in a 6G communication system, a cell may include the resources of multiple CCs, or multiple CCs are networked as a single cell.

[0060] In an NR system cell, network equipment can use the same spectrum resources to serve all terminal devices, regardless of what services they support (e.g., compact terminals, eMBB (Enhanced Mobile Broadband) terminals, or NTN terminals). This leads to the complexity of NR system design. Optimizing system design and the initial access process for terminal devices in a cell is an unresolved issue in future communication systems (such as 6G systems).

[0061] Please refer to Figure 3, which shows a flowchart of a wireless communication method provided in one embodiment of this application. This method can be applied to the network architecture shown in Figure 1. The method may include at least one of the following steps 310-320.

[0062] Step 310: The terminal device receives a first system message based on the first SSB received in the first frequency domain unit set, wherein the first SSB is used to receive the first system message, and the first system message is used to determine the first control resource in the second frequency domain unit set.

[0063] Step 320: The terminal device receives a second system message based on the first control resource, wherein the first control resource is used to receive the second system message, and the second system message is used to determine the transmission configuration information corresponding to the second frequency domain unit set.

[0064] In some embodiments, the first frequency domain unit set is a frequency domain unit set used for transmitting and receiving a first SSB. In some embodiments, the first frequency domain unit set is a frequency domain unit set used for transmitting and receiving a first SSB and a first system message. In some embodiments, the first frequency domain unit set is a frequency domain unit set used for transmitting and receiving a first SSB and N system messages, where the N system messages include the first system message, and N is a positive integer.

[0065] In some embodiments, the set of frequency domain units includes one or more frequency domain units. A frequency domain unit can be understood as a partitioning unit of frequency domain resources. Optionally, a frequency domain unit is an RB (Resource Block) or a portion of bandwidth.

[0066] In some embodiments, the network device transmits a first SSB in a first frequency domain unit set. The first SSB is used to receive N system messages, including the first system message, where N is a positive integer. In this case, one SSB transmitted by the network device can be used to receive N system messages. For example, if the SSB transmission opportunity corresponding to the first SSB transmitted by the network device includes two SSBs, then each of the two SSBs can be used to receive N system messages. As another example, if the SSB transmission opportunity corresponding to the first SSB transmitted by the network device includes two SSBs, then the first SSB of the two SSBs can be used to receive N system messages, and the other SSB of the two SSBs can be used to receive one system message.

[0067] In some embodiments, the network device transmits N SSBs in a first frequency domain unit set. Each of the N SSBs is used to receive one system message from N system messages. The first SSB among the N SSBs is used to receive the first system message from the N system messages, where N is a positive integer. In this case, the network device transmits N SSBs, each corresponding to one of the N system messages. One SSB is used to receive the system message corresponding to that SSB. The value of N can be equal to 1 or greater than 1. The first SSB is one of the N SSBs, and this first SSB is used to receive the first system message from the N system messages. The first system message is the system message corresponding to the first SSB among the N system messages.

[0068] In some embodiments, the above N system messages include at least one of the following: system messages dedicated to a specific set of functions or capabilities, system messages dedicated to a specific service, system messages dedicated to a specific spectrum resource, and system messages dedicated to a specific RAT (Radio Access Technology).

[0069] In some embodiments, a particular RAT includes at least one of the following: 6G RAT, 5G RAT (e.g., NG-RAN, Next Generation Radio Access Network), 4G RAT (e.g., E-UTRAN, Evolved UMTS Terrestrial Radio Access Network), 3G RAT (e.g., UTRAN, UMTS Terrestrial Radio Access Network), and 2G RAT (e.g., GSM, Global System for Mobile Communications; or GSM COMPACT).

[0070] In some embodiments, a particular set of functions or capabilities includes at least one of the following: receive bandwidth, transmit bandwidth, receive antenna, transmit antenna, number of receive ports, number of transmit ports, number of transmit layers, maximum supported MCS (Modulation and Coding Scheme), maximum data rate, massive MIMO (Multiple Input Multiple Output), millimeter wave, SBFD (Subband non-overlapping Full Duplex), unlicensed spectrum, positioning, low power consumption, multi-carrier, and IAB (Integrated Access Backhaul).

[0071] For example, the aforementioned N system messages include system messages specific to a particular set of functions or capabilities. For instance, the aforementioned N system messages include system message #1 and system message #2. Optionally, system message #1 is a system message for a first set of functions or capabilities, and system message #2 is a system message for a second set of functions or capabilities; the first set of functions or capabilities and the second set of functions or capabilities are two different sets of functions or capabilities. Optionally, system message #1 is a system message for the first set of functions or capabilities, and system message #2 is a system message for a set of functions or capabilities other than the first set of functions or capabilities; a set of functions or capabilities other than the first set of functions or capabilities refers to other sets of functions or capabilities besides the first set of functions or capabilities.

[0072] For example, the first set of functions or capabilities may also be referred to as a small function core or a small core. For example, a small core may refer to: the terminal device receiving or transmitting signals through the first set of UE functions / capabilities, or the terminal device receiving / transmitting a first set of signals, or the terminal device receiving / transmitting signals within a first set of resources, or the terminal device receiving / transmitting signals through a small function core.

[0073] For example, the second set of functions or capabilities may also be referred to as a large functional core or a large core. For example, a large core may refer to: the terminal device receiving or transmitting signals through the second UE function / capability set, or the terminal device receiving / transmitting a second signal set, or the terminal device receiving / transmitting signals within a second resource set, or the terminal device receiving / transmitting signals through a large functional core.

[0074] Optionally, at least one function / capability in the second set of functions or capabilities differs from the first set of functions or capabilities, such as maximum receive or transmit bandwidth; the time-frequency resources occupied by the second set of signals, or the time-frequency resources contained in the second set of resources differ from the first set of signals / resources.

[0075] Optionally, the same terminal device can switch between a first set of functions or capabilities and a second set of functions or capabilities, or support only the first set of functions or capabilities; the same terminal device can receive / transmit different sets of signals at different times, or receive / transmit only the first set of signals; the same terminal device can receive / transmit signals in different resource sets at different times, or receive / transmit signals only within the first resource set.

[0076] Optionally, the non-first set of functions or capabilities includes: the terminal device receiving or transmitting signals through capabilities or functions beyond the first set of functions or capabilities; or the terminal device receiving / transmitting signals outside the first set of signals; or the terminal device receiving / transmitting signals within resources outside the first set of resources.

[0077] In some embodiments, a specific service includes at least one of the following: eMBB, mMTC (Massive Machine Type Communication), IoT (Internet of Things), uRLLC (Ultra Reliable & Low Latency Communication), HRLLC (Hyper Reliable Low Latency Communication), NTN, and Sidelink.

[0078] For example, the aforementioned N system messages include system messages specific to a particular service. For instance, the aforementioned N system messages include system message #1 and system message #2. Optionally, system message #1 is a system message for a first service, and system message #2 is a system message for a second service; the first service and the second service are two different services. For example, the first service is an eMBB service, and the second service is an IoT service.

[0079] For example, the aforementioned N system messages include system messages specific to a particular spectrum resource. For instance, the aforementioned N system messages include system message #1 and system message #2. Optionally, system message #1 is a system message for a first spectrum resource, and system message #2 is a system message for a second spectrum resource; the first spectrum resource and the second spectrum resource are two different spectrum resources. Here, spectrum resources can also be understood as a set of frequency domain units.

[0080] For example, the aforementioned N system messages include system messages specific to a particular RAT. For instance, the aforementioned N system messages include system message #1 and system message #2. Optionally, system message #1 is the system message corresponding to the 6G RAT, and system message #2 is the system message corresponding to the 5G RAT; 6G RAT and 5G RAT are two different RATs.

[0081] In some embodiments, the relationship between the first SSB and the N system messages includes one of the following: the first SSB and the N system messages correspond to the same cell; the first SSB and the N system messages correspond to different cells; a portion of the first SSB and the N system messages correspond to the same cell, and another portion of the first SSB and the N system messages correspond to different cells.

[0082] For example, N system messages include system message #1, system message #2, and system message #3. When the first SSB and the N system messages correspond to the same cell, the first SSB, system message #1, system message #2, and system message #3 correspond to the same cell. When the first SSB and the N system messages correspond to different cells, the first SSB, system message #1, system message #2, and system message #3 correspond to different cells. In the case where the first SSB and some of the N system messages correspond to the same cell, and another portion of the N system messages correspond to different cells, for example, the first SSB and system message #1 correspond to the same cell, while the first SSB, system message #2, and system message #3 correspond to different cells.

[0083] In some embodiments, the relationship between the first SSB and the N system messages includes one of the following: the first SSB and the N system messages correspond to different frequency domain cell sets; the first SSB and the N system messages correspond to the same frequency domain cell set; a portion of the first SSB and the N system messages correspond to the same frequency domain cell set, and another portion of the first SSB and the N system messages correspond to different frequency domain cell sets.

[0084] For example, the N system messages include system message #1, system message #2, and system message #3. When the first SSB and the N system messages correspond to different frequency domain cell sets, the first SSB, system message #1, system message #2, and system message #3 correspond to different frequency domain cell sets. When the first SSB and the N system messages correspond to the same frequency domain cell set, the first SSB, system message #1, system message #2, and system message #3 correspond to the same frequency domain cell set. In the case where the first SSB and some of the N system messages correspond to the same frequency domain cell set, while other parts of the first SSB and some of the N system messages correspond to different frequency domain cell sets, for example, the first SSB and system message #1 correspond to the same frequency domain cell set, while the first SSB, system message #2, and system message #3 correspond to different frequency domain cell sets.

[0085] In some embodiments, when N is greater than 1, the relationship of the N system messages includes one of the following: the N system messages are system messages in the same cell; the N system messages are system messages in different cells; some of the N system messages are system messages in the same cell, and some of the system messages are system messages in different cells.

[0086] In some embodiments, when N is greater than 1, the N system messages are system messages from different frequency domain unit sets.

[0087] Optionally, the same frequency domain unit set refers to a set of frequency domain units that, when the transmission directions are the same (e.g., all are downlink, or all are uplink, or all are TDD (Time Division Duplexing)), have at least two of the following three parameters being the same: start position, end position, and number of frequency domain units.

[0088] Optionally, different frequency domain unit sets refer to: when the transmission directions of the frequency domain unit sets are the same (e.g., all are downlink, or all are uplink, or all are TDD), at least two of the three parameters—start position, end position, and number of frequency domain units—are different; or, the transmission directions of the frequency domain unit sets are different.

[0089] The first SSB will be introduced below.

[0090] In some embodiments, the first SSB is used to receive a first system message, including one of the following (1) to (4).

[0091] (1) The first SSB carries the first system message.

[0092] For example, the first system message is carried in the PBCH (Physical Broadcast Channel) of the first SSB.

[0093] For example, the first SSB carries N system messages, including the first system message, where N is a positive integer.

[0094] For example, the PBCH of the first SSB carries N system messages.

[0095] In some embodiments, the first SSB is used to determine the first time-frequency resource, which is used to receive the first system message, including any one of the following (2) to (4).

[0096] (2) The first SSB is used to determine the first time-frequency resource, which is used to transmit the PDSCH (Physical Downlink Shared Channel) carrying the first system message.

[0097] For example, the first time-frequency resource is used to transmit a first PDSCH, which carries a first system message.

[0098] For example, the first time-frequency resource is used to transmit the first PDSCH, which carries N system messages, including the first system message, where N is a positive integer.

[0099] For example, as shown in FIG4, the first SSB is used to determine the first time-frequency resource, the first time-frequency resource is used to transmit the first PDSCH, the first PDSCH carries N system messages, the N system messages include the first system message, and N is a positive integer.

[0100] (3) The first SSB is used to determine the first time-frequency resource, which is used to transmit the PDCCH carrying the first system message.

[0101] For example, the first time-frequency resource is used to transmit a first PDCCH, which carries a first system message.

[0102] For example, the first time-frequency resource is used to transmit the first PDCCH, which carries N system messages, including the first system message, where N is a positive integer.

[0103] For example, as shown in FIG5, the first SSB is used to determine the first time-frequency resource, the first time-frequency resource is used to transmit the first PDCCH, the first PDCCH carries N system messages, the N system messages include the first system message, and N is a positive integer.

[0104] (4) The first SSB is used to determine the first time-frequency resource, and the first time-frequency resource is used to transmit the PDCCH carrying the first system message of the PDSCH.

[0105] For example, the first time-frequency resource is used to transmit the second PDCCH, the second PDCCH is used to schedule the second PDSCH, and the second PDSCH carries the first system message.

[0106] For example, the first time-frequency resource is used to transmit the second PDCCH, the second PDCCH is used to schedule the second PDSCH, the second PDSCH carries N system messages, the N system messages include the first system message, and N is a positive integer.

[0107] For example, as shown in FIG6, the first SSB is used to determine the first time-frequency resource, the first time-frequency resource is used to transmit the second PDCCH, the second PDCCH is used to schedule the second PDSCH, and the second PDSCH carries N system messages, including the first system message, where N is a positive integer.

[0108] In some embodiments, the first SSB is used to determine the first time-frequency resource, including both explicit and implicit determination methods. Optionally, the first SSB is used to determine the first time-frequency resource, including at least one of the following (1) to (3).

[0109] (1) The first SSB carries indication information for determining the first time-frequency resource.

[0110] For example, the bandwidth occupied by the first SSB (i.e., the first set of frequency domain units) is preset, and the bandwidth occupied by the first SSB is the same as the downlink bandwidth corresponding to the first SSB (e.g., the starting position and bandwidth size are the same). The first time-frequency resource is the time-frequency resource in the downlink bandwidth corresponding to the first SSB. This indication information is used to determine the time domain position and / or frequency domain position of the first time-frequency resource in the downlink bandwidth.

[0111] (2) The first SSB carries indication information for determining the first frequency domain unit set.

[0112] For example, the first SSB carries indication information for determining the first frequency domain cell set and indication information for determining the first time-frequency resource. Based on the first SSB, the first frequency domain cell set and the first time-frequency resource in the first frequency domain cell set can be determined.

[0113] For example, the first SSB is used to determine the downlink bandwidth corresponding to the first SSB and the first time-frequency resource within that downlink bandwidth. That is, in this example, the first SSB also includes indication information for determining the downlink bandwidth corresponding to the first SSB.

[0114] (3) There is a mapping relationship between the time-frequency resource where the first SSB is located and the first time-frequency resource, or the first time-frequency resource is determined based on the time-frequency resource where the first SSB is located according to a preset rule.

[0115] For example, the bandwidth occupied by the first SSB is preset, the bandwidth occupied by the first SSB is the same as the downlink bandwidth corresponding to the first SSB, the first time-frequency resource is the time-frequency resource in the downlink bandwidth corresponding to the first SSB, and the positional relationship between the first time-frequency resource and the time-frequency resource where the first SSB is located is preset or determined by preset rules.

[0116] In some embodiments, the first time-frequency resource is a time-frequency resource in a first frequency domain cell set, and the first SSB is used to determine at least one of the following: the time domain position of the first time-frequency resource in the first frequency domain cell set, the frequency domain position of the first time-frequency resource in the first frequency domain cell set, the QCL (Quasi Co-Location) relationship corresponding to the first time-frequency resource; and / or, to receive a first system message in the first frequency domain cell set based on the first SSB.

[0117] In some embodiments, the first SSB is used to receive N system messages, including: the first SSB is used to receive a system message, wherein the system message includes a first system message.

[0118] For example, an SSB transmission opportunity (or SSB transmission set) includes SSB#1 and SSB#2. SSB#1 is used to receive system message #1, and SSB#2 is used to receive system message #2. System message #1 is used to determine control resources (i.e., the aforementioned first control resources) in a second frequency domain unit set, and system message #2 is used to determine control resources in another frequency domain unit set (such as a third frequency domain unit set) different from the second frequency domain unit set. Optionally, the control resources determined by system message #1 (i.e., the aforementioned first control resources) are used to receive a second system message, which is used to determine transmission configuration information corresponding to the second frequency domain unit set. Optionally, the control resources determined by system message #2 are used to receive a third system message, which is used to determine transmission configuration information corresponding to another frequency domain unit set (such as a third frequency domain unit set) different from the second frequency domain unit set.

[0119] For example, as shown in FIG7, the network device can send SSB#1 and SSB#2, wherein SSB#1 is used to determine a first time-frequency resource, the first time-frequency resource is used to transmit DCI#1, DCI#1 is used to schedule PDSCH#1, and PDSCH#1 carries system message #1; SSB#2 is used to determine a second time-frequency resource, the second time-frequency resource is used to transmit DCI#2, DCI#2 is used to schedule PDSCH#2, and PDSCH#2 carries system message #2.

[0120] In some embodiments, the first SSB is used to receive N system messages, including: the first SSB is used to receive multiple system messages, among which the first system message is included.

[0121] For example, SSB#1 is used to determine two system messages, namely system message #1 and system message #2. System message #1 is used to determine the control resource in the second frequency domain unit set (i.e., the first control resource mentioned above), and system message #2 is used to determine the control resource in another frequency domain unit set (such as the third frequency domain unit set) that is different from the second frequency domain unit set.

[0122] In some embodiments, the first SSB is used to receive a first system message, including: an SSB transmission opportunity is used to receive N system messages, the SSB transmission opportunity includes N SSBs, each of the N SSBs is used to receive one system message among the N system messages, wherein the first SSB among the N SSBs is used to receive the first system message among the N system messages, and N is a positive integer.

[0123] For example, the SSB transport opportunity is used to receive two system messages, namely system message #1 and system message #2. The SSB transport opportunity includes two SSBs, namely SSB#1 and SSB#2. Among them, SSB#1 is used to receive system message #1, and SSB#2 is used to receive system message #2.

[0124] The following is an introduction and explanation of the first system message.

[0125] In some embodiments, the first system message is used to determine a first control resource in the second frequency domain unit set, including: the first system message is used to determine at least one of the following (1) to (14).

[0126] (1) Information on the second frequency domain unit set.

[0127] Information about the second frequency domain unit set is used to determine the second frequency domain unit set. For example, the information about the second frequency domain unit set includes at least one of the following: the start position of the second frequency domain unit set, the end position of the second frequency domain unit set, the number of frequency domain units in the second frequency domain unit set, the number and position of available frequency domain units in the second frequency domain unit set, the number and position of unavailable frequency domain units in the second frequency domain unit set, and so on. For example, the first system message is used to indicate the offset value between the start position of the second frequency domain unit set and the start or end position of the first frequency domain unit set; based on this offset value, the start position of the second frequency domain unit set can be determined. As another example, the first system message is used to indicate the number of frequency domain units included in the second frequency domain unit set. Based on the above two pieces of information, the terminal device can determine the position and size of the second frequency domain unit set.

[0128] (2) The time-domain location information of the first control resource in the second frequency domain unit set.

[0129] The time-domain location information of the first control resource in the second frequency domain unit set is used to determine the time-domain location of the first control resource in the second frequency domain unit set.

[0130] (3) Frequency domain location information of the first control resource in the second frequency domain unit set.

[0131] The frequency domain position information of the first control resource in the second frequency domain unit set is used to determine the frequency domain position of the first control resource in the second frequency domain unit set.

[0132] For example, the first system message includes configuration information of a first control resource. This configuration information may include: time-domain location information of the first control resource within the second frequency domain unit set, and / or, frequency-domain location information of the first control resource within the second frequency domain unit set.

[0133] For example, the first system message includes configuration information of a first search space set, and the first control resource is a resource in the first search space set. Based on the configuration information of the first search space set, the terminal device can determine the first search space set, and then determine the first control resource based on the first search space set.

[0134] For example, the first system message includes configuration information of the time-domain location and / or frequency-domain location of the first control resource. Based on the above information, the terminal device can determine the time-domain location and / or frequency-domain location of the first control resource.

[0135] For example, the first system message includes configuration information of the time-domain and / or frequency-domain locations of the first search space set, and the first control resource is a resource in the first search space set. Based on the above information, the terminal device can determine the first search space set, and then determine the first control resource based on the first search space set.

[0136] (4) QCL relationship corresponding to the first control resource.

[0137] Optionally, the first control resource has a QCL relationship with at least one of the following: a first SSB, a PDCCH corresponding to a first system message, a PDSCH corresponding to a first system message, a PDCCH corresponding to a second system message, and a PDSCH corresponding to a second system message. Wherein, the PDCCH corresponding to the first system message is a PDCCH carrying the first system message or a PDCCH that schedules the PDSCH carrying the first system message. The PDSCH corresponding to the first system message is a PDSCH carrying the first system message. The PDCCH corresponding to the second system message is a PDCCH carrying the second system message or a PDCCH that schedules the PDSCH carrying the second system message. The PDSCH corresponding to the second system message is a PDSCH carrying the second system message.

[0138] Based on the QCL relationship corresponding to the first control resource, the terminal device can determine the time domain location and / or frequency domain location of the first control resource.

[0139] (5) Information on the set of control resources corresponding to the first control resource.

[0140] The control resource set information corresponding to the first control resource is used to determine the control resource set (CORSET) corresponding to the first control resource. For example, the first system message includes configuration information of the control resource set corresponding to the first control resource. For instance, the terminal device determines the control resource set corresponding to the first control resource based on this configuration information, and determines the time-domain position of the first control resource based on the configuration information of its time-domain position, thereby determining the time-domain position and / or frequency-domain position of the first control resource.

[0141] (6) Search space set information corresponding to the first control resource.

[0142] The search space set information corresponding to the first control resource is used to determine the search space set (Search Space Set) corresponding to the first control resource. The search space set describes the temporal location where the terminal device detects the PDCCH. The CORESET is the basis of the search space set. The CORESET defines the set of control resources, while the search space set is the set of temporal locations defined within the CORESET. The terminal device needs to listen to the PDCCH at these defined temporal locations to detect DCI (Downlink Control Information). Based on the search space set information corresponding to the first control resource, the terminal device can determine the temporal location of the first control resource.

[0143] (7) SCS (Subcarrier Spacing) information of the first control resource.

[0144] The SCS information of the first control resource is used to determine the SCS of the first control resource. For example, the first system message includes indication information of the SCS of the first control resource. For example, the first system message includes indication information of the SCS of the control resource set corresponding to the first control resource.

[0145] (8) Function or capability set information corresponding to the second frequency domain unit set.

[0146] The information on the set of functions or capabilities corresponding to the second set of frequency domain units is used to indicate the set of functions or capabilities corresponding to the second set of frequency domain units. Optionally, the set of functions or capabilities corresponding to the second set of frequency domain units includes at least one of the following: bandwidth, antenna, massive MIMO, millimeter wave, SBFD, unlicensed spectrum, positioning, low power consumption, multi-carrier, and IAB.

[0147] (9) Service information corresponding to the second frequency domain unit set.

[0148] The service information corresponding to the second frequency domain unit set is used to indicate the service corresponding to the second frequency domain unit set. Optionally, the service corresponding to the second frequency domain unit set includes at least one of the following: eMBB, mMTC, IoT, uRLLC, HRLLC, NTN, and Sidelink.

[0149] (10) Spectrum resource information corresponding to the second frequency domain unit set.

[0150] The spectrum resource information corresponding to the second set of frequency domain units is used to indicate the spectrum resources corresponding to the second set of frequency domain units.

[0151] In some embodiments, a first system message is used to determine a first type. For example, the first system message includes indication information corresponding to either the first system message or the type corresponding to the second frequency domain element set. For instance, if multiple types of frequency domain element sets exist in the network, the indication information for the first type is used to instruct the corresponding type of terminal device to detect or receive a downlink control channel in the second frequency domain element set. For example, different types may be associated with different sets of terminal device functions / capabilities; or, different types may be associated with different services.

[0152] (11) The first random access resource configuration information corresponding to the first system message.

[0153] The first random access resource configuration information corresponding to the first system message is used to determine the first random access resource corresponding to the first system message. For example, the first random access resource includes RO resources, and the first system message includes: uplink bandwidth indication information corresponding to the first system message and RO resource configuration information in the uplink bandwidth corresponding to the first system message. As another example, the first random access resource includes MsgA resources, and the first system message includes: uplink bandwidth indication information corresponding to the first system message and MsgA resource configuration information in the uplink bandwidth corresponding to the first system message.

[0154] (12) The first access prohibition information corresponding to the first system message, the first access prohibition information is used to indicate whether the terminal device is prohibited from receiving the second system message based on the first control resource.

[0155] For example, the first system message includes a first Bar information, which is used to indicate whether the terminal device is prohibited from detecting the downlink control channel based on the first control resource, that is, to indicate whether the terminal device is prohibited from receiving the second system message based on the first control resource.

[0156] (13) The community identifier corresponding to the first community.

[0157] In some embodiments, the first cell is a cell corresponding to at least one of the following: a first system message, a second system message, and a second frequency domain cell set. For example, the first system message includes first cell identification information, which is used to indicate the cell identifier corresponding to the first cell.

[0158] (14) Indication information on whether the cell identifier corresponding to the first cell is the same as the cell identifier corresponding to the first SSB.

[0159] For example, the first system message includes 1 bit of indication information to indicate whether the cell identifier corresponding to the first cell is the same as the cell identifier corresponding to the first SSB. For example, if the terminal device determines based on the first system message that the cell identifier corresponding to the first cell is the same as the cell identifier corresponding to the first SSB, then the terminal device can determine that the first frequency domain element set and the second frequency domain element set are frequency domain element sets in the same cell. Otherwise, the terminal device can determine that the first frequency domain element set and the second frequency domain element set are frequency domain element sets in different cells.

[0160] The first control resource will be introduced and explained below.

[0161] In some embodiments, the first control resource is used to receive a second system message, including one of the following (1) to (2).

[0162] (1) The first control resource is used to transmit the PDCCH carrying the second system message.

[0163] For example, the first control resource is used to transmit a third PDCCH, which carries a second system message.

[0164] (2) The first control resource is used to transmit the PDCCH that carries the second system message of the PDSCH.

[0165] For example, the first control resource is used to transmit the fourth PDCCH, the fourth PDCCH is used to schedule the third PDSCH, and the third PDSCH carries the second system message.

[0166] The second system message will be introduced and explained below.

[0167] In some embodiments, the second system message is used to determine the transmission configuration information corresponding to the second frequency domain unit set, including: the second system message is used to determine at least one of the following (1) to (5).

[0168] (1) The community identifier corresponding to the first community.

[0169] In some embodiments, the first cell is a cell corresponding to at least one of the following: a first system message, a second system message, and a second frequency domain cell set. For example, the second system message includes first cell identification information, which is used to indicate the cell identifier corresponding to the first cell.

[0170] (2) The configuration information of the second random access resources corresponding to the first cell.

[0171] The second random access resource configuration information corresponding to the first cell is used to determine the second random access resource corresponding to the first cell. For example, the second system message includes the second random access resource configuration information corresponding to the first cell. For instance, if the second random access resource includes RO resources, the second system message includes: indication information of the uplink bandwidth corresponding to the first cell and / or RO resource configuration information in the uplink bandwidth corresponding to the first cell. As another example, if the second random access resource includes MsgA resources, the second system message includes: indication information of the uplink bandwidth corresponding to the first cell and / or MsgA resource configuration information in the uplink bandwidth corresponding to the first cell.

[0172] Optionally, the first random access resource and the second random access resource may be the same or different. When the first system message is used to determine the first random access resource configuration information corresponding to the first system message and the second system message is used to determine the second random access resource configuration information corresponding to the first cell, the random access resource determined based on the first random access resource configuration information (i.e., the first random access resource) and the random access resource determined based on the second random access resource configuration information (i.e., the second random access resource) are different, or the random access resource determined based on the first random access resource configuration information (i.e., the first random access resource) and the random access resource determined based on the second random access resource configuration information (i.e., the second random access resource) are at least partially the same.

[0173] In some embodiments, when the first system message is used to determine the first random access resource configuration information corresponding to the first system message, the second system message is not used to determine the second random access resource configuration information corresponding to the first cell.

[0174] In some embodiments, if the first system message is not used to determine the first random access resource configuration information corresponding to the first system message, the second system message is used to determine the second random access resource configuration information corresponding to the first cell.

[0175] (3) Paging configuration information corresponding to the first cell.

[0176] The paging configuration information corresponding to the first cell is used to determine the paging configuration corresponding to the first cell, such as at least one of the following: paging channel, paging timing, paging DRX (Discontinuous Reception) period, paging priority, etc.

[0177] (4) Carrier bandwidth configuration information corresponding to the first cell.

[0178] The carrier bandwidth configuration information for the first cell is used to determine the carrier bandwidth corresponding to the first cell. Specifically, the carrier bandwidth for the first cell refers to the difference between the highest and lowest frequencies of the carrier used for data transmission within the first cell.

[0179] (5) The second access prohibition information corresponding to the first cell, which is used to indicate whether the terminal device is prohibited from accessing the first cell.

[0180] For example, the second system message includes a second access prohibition message, which is used to indicate whether to prohibit the terminal device from accessing the first cell.

[0181] The first and second frequency domain unit sets will be introduced and explained below.

[0182] In some embodiments, the first frequency domain unit set includes a first downlink frequency domain unit set and / or a first uplink frequency domain unit set. The first downlink frequency domain unit set includes at least one first downlink frequency domain unit, which is a frequency domain unit used for downlink transmission. The first uplink frequency domain unit set includes at least one first uplink frequency domain unit, which is a frequency domain unit used for uplink transmission.

[0183] In some embodiments, when the first frequency domain unit set includes the first uplink frequency domain unit set, the random access resource (i.e., the first random access resource) determined based on the first random access resource configuration information corresponding to the first system message is the random access resource in the first uplink frequency domain unit set. Thus, the terminal device can use the aforementioned random access resource to initiate random access.

[0184] In some embodiments, the second frequency domain unit set includes a second downlink frequency domain unit set and / or a second uplink frequency domain unit set. The second downlink frequency domain unit set includes at least one second downlink frequency domain unit, which is a frequency domain unit used for downlink transmission. The second uplink frequency domain unit set includes at least one second uplink frequency domain unit, which is a frequency domain unit used for uplink transmission.

[0185] In some embodiments, when the second frequency domain unit set includes a second uplink frequency domain unit set, the random access resource (i.e., the first random access resource) determined based on the first random access resource configuration information corresponding to the first system message is the random access resource in the second uplink frequency domain unit set; and / or, the random access resource (i.e., the second random access resource) determined based on the second random access resource configuration information corresponding to the first cell is the random access resource in the second uplink frequency domain unit set. Thus, the terminal device can use the aforementioned random access resource to initiate random access.

[0186] In some embodiments, the first frequency domain unit set and the second frequency domain unit set are different, or the CC corresponding to the first frequency domain unit set and the CC corresponding to the second frequency domain unit set are different; wherein, the first frequency domain unit set includes at least a first downlink frequency domain unit set, and the second frequency domain unit set includes at least a second downlink frequency domain unit set. In some embodiments, the first downlink frequency domain unit set and the second downlink frequency domain unit set are different, or the CC corresponding to the first downlink frequency domain unit set and the CC corresponding to the second downlink frequency domain unit set are different.

[0187] In some embodiments, at least two of the following have a QCL relationship: a first SSB, a PDCCH corresponding to a first system message, a PDSCH corresponding to a first system message, a first control resource, a PDCCH corresponding to a second system message, and a PDSCH corresponding to a second system message. Wherein, the PDCCH corresponding to the first system message is a PDCCH carrying the first system message or a PDCCH that schedules a PDSCH carrying the first system message. The PDSCH corresponding to the first system message is a PDSCH carrying the first system message. The PDCCH corresponding to the second system message is a PDCCH carrying the second system message or a PDCCH that schedules a PDSCH carrying the second system message. The PDSCH corresponding to the second system message is a PDSCH carrying the second system message.

[0188] In some embodiments, the first frequency domain cell set and the second frequency domain cell set are frequency domain cell sets in the first cell. In this case, the first SSB, the first system message, and the second system message correspond to the same cell, and both the first SSB, the first system message, and the second system message correspond to the first cell.

[0189] In some embodiments, the first SSB, the first system message, and the second system message all correspond to the first cell.

[0190] In some embodiments, the second frequency domain element set is the frequency domain element set in the first cell, and the first frequency domain element set is the frequency domain element set in the second cell. The first cell and the second cell are different. In this case, the first SSB and the second system message correspond to different cells; the first SSB corresponds to the second cell, and the second system message corresponds to the first cell.

[0191] In some embodiments, the first system message and the second system message correspond to the first cell, and the first SSB corresponds to the second cell.

[0192] In some embodiments, the second system message corresponds to the first cell, and the first SSB and the first system message correspond to the second cell.

[0193] In some embodiments, when the first SSB is used to receive N system messages or the SSB transmission opportunity is used to receive N system messages, the N system messages include a third system message, which is used to determine a second control resource in the first frequency domain unit set. The network device can send a fourth system message based on the second control resource. Accordingly, the terminal device receives the fourth system message based on the second control resource, wherein the second control resource is used to receive the fourth system message, and the fourth system message is used to determine transmission configuration information corresponding to the first frequency domain unit set.

[0194] In some embodiments, the first SSB, the third system message, and the fourth system message correspond to the same cell.

[0195] In this scenario, the first frequency domain unit set can also provide data transmission services. Furthermore, the method for determining the transmission configuration information corresponding to the first frequency domain unit set based on the fourth system message is the same as the method for determining the transmission configuration information corresponding to the second frequency domain unit set based on the second system message described above, and will not be repeated here.

[0196] For example, the terminal device receives a first SSB based on a first set of frequency domain units. The first SSB is used to receive N system messages, including system message #1 and system message #2. Alternatively, the terminal device receives an SSB transmission set based on the first set of frequency domain units. The SSB transmission set includes SSB #1 and SSB #2, where SSB #1 is used to receive system message #1 and SSB #2 is used to receive system message #2. Optionally, system message #1 is a system message for a large functional core or a big core, and system message #2 is a system message for a small functional core or a small core. System message #1 is used to determine a first control resource in a second set of frequency domain units. Based on the first control resource, the terminal device receives a second system message, which is used to determine transmission configuration information corresponding to the second set of frequency domain units. System message #2 is used to determine a second control resource in the first set of frequency domain units. Based on the second control resource, the terminal device receives a fourth system message, which is used to determine transmission configuration information corresponding to the first set of frequency domain units.

[0197] In some embodiments, when the first SSB is used to receive N system messages or the SSB transmission opportunity is used to receive N system messages, the N system messages include a fifth system message, which is used to determine the transmission configuration information corresponding to the first frequency domain unit set.

[0198] In some embodiments, the first SSB and the fifth system message correspond to the same cell.

[0199] In this case, the transmission configuration information corresponding to the first frequency domain unit set can be determined directly based on one of the N system messages, eliminating the step of determining control resources.

[0200] In some embodiments, the transmission configuration information corresponding to the first frequency domain unit set corresponds to the first function or capability set; and / or, the transmission configuration information corresponding to the first frequency domain unit set corresponds to the first service.

[0201] In some embodiments, the transmission configuration information corresponding to the second frequency domain unit set corresponds to the second function or capability set; and / or, the transmission configuration information corresponding to the second frequency domain unit set corresponds to the second service.

[0202] For example, the first set of functions or capabilities is a small functional core or a small core, and the second set of functions or capabilities is a large functional core or a large core. When the set of functions or capabilities corresponding to the terminal device is a small functional core or a small core, the terminal device communicates based on the transmission configuration information corresponding to the first set of frequency domain units; when the set of functions or capabilities corresponding to the terminal device is a large functional core or a large core, the terminal device communicates based on the transmission configuration information corresponding to the second set of frequency domain units.

[0203] For example, the first service is an IoT service, and the second service is an eMBB service. When the service corresponding to the terminal device is an IoT service, the terminal device communicates based on the transmission configuration information corresponding to the first frequency domain unit set; when the service corresponding to the terminal device is an eMBB service, the terminal device communicates based on the transmission configuration information corresponding to the second frequency domain unit set.

[0204] In some embodiments, the transmission configuration information corresponding to the second frequency domain unit set corresponds to a non-first function or capability set; and / or, the transmission configuration information corresponding to the second frequency domain unit set corresponds to a non-first service.

[0205] Optionally, the transmission configuration information corresponding to the first frequency domain unit set corresponds to a first function or capability set, and the transmission configuration information corresponding to the second frequency domain unit set corresponds to a non-first function or capability set. For example, the first function or capability set is a small functional core or a small core. When the function or capability set corresponding to the terminal device is a small functional core or a small core, the terminal device communicates based on the transmission configuration information corresponding to the first frequency domain unit set; when the function or capability set corresponding to the terminal device is not a small functional core or a small core, the terminal device communicates based on the transmission configuration information corresponding to the second frequency domain unit set.

[0206] Optionally, the transmission configuration information corresponding to the first frequency domain unit set corresponds to the first service, and the transmission configuration information corresponding to the second frequency domain unit set corresponds to a non-first service. For example, the first service is an IoT service. When the service corresponding to the terminal device is an IoT service, the terminal device communicates based on the transmission configuration information corresponding to the first frequency domain unit set; when the service corresponding to the terminal device is not an IoT service, the terminal device communicates based on the transmission configuration information corresponding to the second frequency domain unit set.

[0207] In some embodiments, the first frequency domain unit set and the second frequency domain unit set are aligned in the time domain based on time domain units, wherein the time domain unit is one of the following: frame, half-frame, time slot, symbol. For example, after receiving the first SSB in the first frequency domain unit set, the terminal device can, based on the downlink timing information determined by the first SSB, listen to the downlink control channel through the first control resource in the second frequency domain unit set to receive the second system message.

[0208] In some embodiments, the first SSB is a periodically transmitted channel or signal; and / or, the first system message is periodically transmitted information; and / or, the first control resource is a periodically transmitted resource. Exemplarily, all N system messages mentioned above are periodically transmitted information. Exemplarily, the terminal device detects the first SSB and / or the first system message and / or the first control resource according to an assumed period. The assumed period can be a predefined period, such as 20ms.

[0209] In some embodiments, the number of frequency domain units in the first downlink frequency domain unit set included in the first frequency domain unit set is less than the number of frequency domain units in the second downlink frequency domain unit set included in the second frequency domain unit set; and / or, the number of frequency domain units in the first uplink frequency domain unit set included in the first frequency domain unit set is less than the number of frequency domain units in the second uplink frequency domain unit set included in the second frequency domain unit set. Alternatively, the bandwidth of the first downlink frequency domain unit set is less than the bandwidth of the second downlink frequency domain unit set; and / or, the bandwidth of the first uplink frequency domain unit set is less than the bandwidth of the second uplink frequency domain unit set.

[0210] In some embodiments, the bandwidth of the CC corresponding to the first downlink frequency domain unit set is less than the bandwidth of the CC corresponding to the second downlink frequency domain unit set; and / or, the bandwidth of the CC corresponding to the first uplink frequency domain unit set is less than the bandwidth of the CC corresponding to the second uplink frequency domain unit set.

[0211] The following example illustrates the process of a terminal device accessing the network, using a network device providing services to two types of terminal devices with different capabilities. For ease of description, in the following example, the SSB transmission set includes SSB#1 and SSB#2. SSB#1 is used to determine the time-frequency resources for transmitting DCI#1, and DCI#1 is used to schedule system message #1 (i.e., PDSCH#1). SSB#2 is used to determine the time-frequency resources for transmitting DCI#2, and DCI#2 is used to schedule system message #2 (i.e., PDSCH#2). System message #1 is used to determine the first control resource in the second frequency domain unit set. The terminal device receives downlink control information DCI#1-1 through the first control resource. DCI#1-1 is used to schedule system message #1-1 (i.e., PDSCH#1-1). The two types of terminal devices with different capabilities are a high-capability terminal device (e.g., a large-core terminal device) and a low-capability terminal device (e.g., a small-core terminal device).

[0212] As shown in Figure 8, system messages #1 and #2 can be determined based on the SSB. System message #1 is used to determine the first control resource, and system message #2 is used to determine the second control resource. The first and second control resources correspond to different terminal device capabilities. For example, the first control resource corresponds to a terminal device with high capabilities, and the second control resource corresponds to a terminal device with low capabilities. The SSB, the first control resource, and the second control resource are located on different downlink bandwidths. In this example, the SSB is on CC#1, the first control resource is on CC#2, and the second control resource is on CC#3. System message #1-1 includes system messages for communication via resources in CC#2, and system message #2-1 includes system messages for communication via resources in CC#3.

[0213] When the terminal device is a high-capability terminal device, after receiving the SSB on CC#1 via blind detection of the SSB, it obtains system message #1 (e.g., the first MIB) and / or system message #2 (e.g., the second MIB) based on the SSB. Since system message #1 corresponds to a high-capability terminal device, the terminal device receives DCI#1-1 on CC#2 based on the first control resource determined by system message #1, and obtains system message #1-1 (e.g., the first SIB1) based on the scheduling of DCI#1-1. This allows it to obtain the complete system message corresponding to CC#2, and then communicate through the resources in CC#2.

[0214] When the terminal device is a low-capability terminal device, after receiving the SSB on CC#1 via blind detection of the SSB, the terminal device obtains system message #1 (e.g., the first MIB) and / or system message #2 (e.g., the second MIB) based on the SSB. Since system message #2 corresponds to the low-capability terminal device, the terminal device receives DCI#2-1 on CC#3 based on the second control resource determined by system message #2, and obtains system message #2-1 (e.g., the second SIB1) based on the scheduling of DCI#2-1. This allows the terminal device to obtain the complete system message corresponding to CC#3, and then communicate through the resources in CC#3.

[0215] As shown in Figure 9, system messages #1 and #2 can be determined based on the SSB. System message #1 is used to determine the first control resource, and system message #2 is used to determine the second control resource. The first and second control resources correspond to different terminal device capabilities. For example, the first control resource corresponds to a terminal device with high capabilities, and the second control resource corresponds to a terminal device with low capabilities. The SSB and the first control resource are on different downlink bandwidths, while the SSB and the second control resource are on the same downlink bandwidth. In this example, the SSB and the second control resource are on CC#1, and the first control resource is on CC#2. System message #1-1 includes system messages for communication via resources in CC#2, and system message #2-1 includes system messages for communication via resources in CC#1.

[0216] When the terminal device is a high-capability terminal device, after receiving the SSB on CC#1 via blind detection of the SSB, it obtains system message #1 (e.g., the first MIB) and / or system message #2 (e.g., the second MIB) based on the SSB. Since system message #1 corresponds to a high-capability terminal device, the terminal device receives DCI#1-1 on CC#2 based on the first control resource determined by system message #1, and obtains system message #1-1 (e.g., the first SIB1) based on the scheduling of DCI#1-1. This allows it to obtain the complete system message corresponding to CC#2, and then communicate through the resources in CC#2.

[0217] When the terminal device is a low-capability terminal device, after receiving the SSB on CC#1 via blind detection of the SSB, the terminal device obtains system message #1 (e.g., the first MIB) and / or system message #2 (e.g., the second MIB) based on the SSB. Since system message #2 corresponds to the low-capability terminal device, the terminal device receives DCI#2-1 on CC#1 based on the second control resource determined by system message #2, and obtains system message #2-1 (e.g., the second SIB1) based on the scheduling of DCI#2-1. This allows the terminal device to obtain the complete system message corresponding to CC#1 and then communicate through the resources in CC#1.

[0218] As shown in Figure 10, system message #1 and system message #2 can be determined based on the SSB. System message #1 is used to determine the first control resource. System message #2-1 can also be determined based on the SSB. System message #1 and SSB correspond to different terminal device capabilities. For example, system message #1 corresponds to a terminal device with high capabilities, and SSB corresponds to a terminal device with low capabilities. The SSB and system message #1 are on different downlink bandwidths. In this example, the SSB is on CC#1, and system message #1 is on CC#2. System message #1-1 includes system messages that communicate through resources in CC#2, and system message #2-1 includes system messages that communicate through resources in CC#1.

[0219] When the terminal device is a high-capability terminal device, after receiving the SSB on CC#1 via blind detection of the SSB, it obtains system message #1 (e.g., the first MIB) and / or system message #2 (e.g., the second MIB) based on the SSB. Since system message #1 corresponds to a high-capability terminal device, the terminal device receives DCI#1-1 on CC#2 based on the first control resource determined by system message #1, and obtains system message #1-1 (e.g., the first SIB1) based on the scheduling of DCI#1-1. This allows it to obtain the complete system message corresponding to CC#2, and then communicate through the resources in CC#2.

[0220] When the terminal device is a low-capability terminal device, after receiving the SSB on CC#1 via blind detection of the SSB, the terminal device obtains system message #1 (e.g., the first MIB) and / or system message #2 (e.g., the second MIB) based on the SSB. Since the SSB corresponds to the low-capability terminal device, the terminal device can determine the control resources for transmitting DCI#2-1 on CC#1 based on the SSB and receive DCI#2-1. Based on the scheduling of DCI#2-1, it obtains system message #2-1 (e.g., the second SIB1), thereby obtaining the complete system message corresponding to CC#1 and communicating through the resources in CC#1. In some embodiments, system message #2 and system message #2-1 may also be transmitted through the same downlink shared channel.

[0221] It should be understood that the technical solutions provided in the embodiments of this application can be applied to a scenario where a cell includes multiple CCs, or to a scenario where a cell includes one CC.

[0222] Please refer to Figure 11, which shows a flowchart of a wireless communication method provided in another embodiment of this application. This method can be applied to the network architecture shown in Figure 1. The method may include at least one of the following steps 1110 to 1120.

[0223] Step 1110: The network device sends a first system message based on the first SSB sent in the first frequency domain unit set, wherein the first SSB is used by the terminal device to receive the first system message, and the first system message is used to determine the first control resource in the second frequency domain unit set.

[0224] In some embodiments, the network device transmits a first SSB in a first frequency domain unit set. The first SSB is used to receive N system messages, including the first system message, where N is a positive integer.

[0225] In some embodiments, the network device transmits N SSBs in the first frequency domain unit set. Each of the N SSBs is used to receive one of the N system messages. The first SSB among the N SSBs is used to receive the first system message among the N system messages, where N is a positive integer.

[0226] In some embodiments, the network device sends a first system message in a first set of frequency domain units.

[0227] In some embodiments, the network device sends N system messages in the first frequency domain unit set, where the N system messages include the first system message and N is a positive integer.

[0228] Step 1120: The network device sends a second system message based on the first control resource, wherein the first control resource is used by the terminal device to receive the second system message, and the second system message is used to determine the transmission configuration information corresponding to the second frequency domain unit set.

[0229] In some embodiments, the network device uses a first control resource in the second set of frequency domain units to send a second system message.

[0230] For details not described in the method steps on the network device side, please refer to the description in the above embodiments, which will not be repeated here.

[0231] In summary, the technical solution provided by the embodiments of this application allows the terminal device to receive different system messages based on the SSB after receiving the SSB in the cell. These different system messages can then be used to divert terminal devices with different capabilities or supporting different functional groups, or different vertical services, to different frequency domain resources, thereby helping to reduce the design complexity of the system.

[0232] In the above method embodiments, the steps executed by the terminal device can be implemented independently as a wireless communication method on the terminal device side, and the steps executed by the network device can be implemented independently as a wireless communication method on the network device side. Furthermore, the various embodiments of this application can be arbitrarily combined to form new embodiments, all of which are within the protection scope of this application.

[0233] The following are embodiments of the apparatus described in this application, which can be used to execute the embodiments of the method described in this application. For details not disclosed in the apparatus embodiments of this application, please refer to the embodiments of the method described in this application.

[0234] Please refer to Figure 12, which shows a block diagram of a wireless communication device according to an embodiment of this application. This device has the function of implementing the wireless communication method described above on the terminal device side. This function can be implemented in hardware or by hardware executing corresponding software. This device can be the terminal device described above, or it can be disposed within a terminal device. As shown in Figure 12, the device 1200 may include a receiving module 1210.

[0235] The receiving module 1210 is configured to receive a first system message based on a first SSB received in a first frequency domain unit set, wherein the first SSB is used to receive the first system message, and the first system message is used to determine a first control resource in a second frequency domain unit set.

[0236] The receiving module 1210 is further configured to receive a second system message based on the first control resource, wherein the first control resource is used to receive the second system message, and the second system message is used to determine the transmission configuration information corresponding to the second frequency domain unit set.

[0237] In some embodiments, the first SSB is configured to receive the first system message, including one of the following: the first SSB carries the first system message; the first SSB is configured to determine a first time-frequency resource, the first time-frequency resource being used to transmit a PDSCH carrying the first system message; the first SSB is configured to determine a first time-frequency resource, the first time-frequency resource being used to transmit a PDCCH carrying the first system message; the first SSB is configured to determine a first time-frequency resource, the first time-frequency resource being used to transmit a PDCCH that schedules the PDSCH carrying the first system message.

[0238] In some embodiments, the first SSB is used to determine the first time-frequency resource, including at least one of the following: the first SSB carries indication information for determining the first time-frequency resource; the first SSB carries indication information for determining the first frequency domain cell set; there is a mapping relationship between the time-frequency resource where the first SSB is located and the first time-frequency resource; or, the first time-frequency resource is determined based on the time-frequency resource where the first SSB is located according to a preset rule.

[0239] In some embodiments, the first time-frequency resource is a time-frequency resource in the first frequency domain cell set, and the first SSB is used to determine at least one of the following: the time domain position of the first time-frequency resource in the first frequency domain cell set, the frequency domain position of the first time-frequency resource in the first frequency domain cell set, the QCL relationship corresponding to the first time-frequency resource; and / or, receiving the first system message in the first frequency domain cell set based on the first SSB.

[0240] In some embodiments, the first system message is used to determine a first control resource in a second frequency domain unit set, including: the first system message is used to determine at least one of the following: information of the second frequency domain unit set; time-domain location information of the first control resource in the second frequency domain unit set; frequency-domain location information of the first control resource in the second frequency domain unit set; QCL relationship corresponding to the first control resource; control resource set information corresponding to the first control resource; search space set information corresponding to the first control resource; subcarrier spacing (SCS) information of the first control resource; function or capability set information corresponding to the second frequency domain unit set; service information corresponding to the second frequency domain unit set; spectrum resource information corresponding to the second frequency domain unit set; first random access resource configuration information corresponding to the first system message; first access prohibition information corresponding to the first system message, wherein the first access prohibition information is used to indicate whether the terminal device is prohibited from receiving the second system message based on the first control resource; cell identifier corresponding to the first cell; indication information on whether the cell identifier corresponding to the first cell is the same as the cell identifier corresponding to the first SSB; wherein, the first cell is a cell corresponding to at least one of the following: the first system message, the second system message, and the second frequency domain unit set.

[0241] In some embodiments, the first control resource is configured to receive the second system message, including one of the following: the first control resource is configured to transmit a PDCCH carrying the second system message; the first control resource is configured to transmit a PDCCH that schedules a PDSCH carrying the second system message.

[0242] In some embodiments, the second system message is used to determine the transmission configuration information corresponding to the second frequency domain unit set, including: the second system message is used to determine at least one of the following: the cell identifier corresponding to the first cell; the second random access resource configuration information corresponding to the first cell; the paging configuration information corresponding to the first cell; the carrier bandwidth configuration information corresponding to the first cell; and the second access prohibition information corresponding to the first cell, wherein the second access prohibition information is used to indicate whether the terminal device is prohibited from accessing the first cell; wherein the first cell is a cell corresponding to at least one of the following: the first system message, the second system message, and the second frequency domain unit set.

[0243] In some embodiments, when the first system message is used to determine the first random access resource configuration information corresponding to the first system message and the second system message is used to determine the second random access resource configuration information corresponding to the first cell, the random access resources determined based on the first random access resource configuration information and the random access resources determined based on the second random access resource configuration information are different, or the random access resources determined based on the first random access resource configuration information and the random access resources determined based on the second random access resource configuration information are at least partially the same.

[0244] In some embodiments, when the first system message is used to determine the first random access resource configuration information corresponding to the first system message, the second system message is not used to determine the second random access resource configuration information corresponding to the first cell; or, when the first system message is not used to determine the first random access resource configuration information corresponding to the first system message, the second system message is used to determine the second random access resource configuration information corresponding to the first cell.

[0245] In some embodiments, the first frequency domain unit set includes a first downlink frequency domain unit set and / or a first uplink frequency domain unit set.

[0246] In some embodiments, when the first frequency domain unit set includes a first uplink frequency domain unit set, the random access resource determined based on the first random access resource configuration information corresponding to the first system message is the random access resource in the first uplink frequency domain unit set.

[0247] In some embodiments, the second frequency domain unit set includes a second downlink frequency domain unit set and / or a second uplink frequency domain unit set.

[0248] In some embodiments, when the second frequency domain unit set includes a second uplink frequency domain unit set, the random access resource determined based on the first random access resource configuration information corresponding to the first system message is the random access resource in the second uplink frequency domain unit set; and / or, the random access resource determined based on the second random access resource configuration information corresponding to the first cell is the random access resource in the second uplink frequency domain unit set.

[0249] In some embodiments, the first frequency domain unit set and the second frequency domain unit set are different, or the CC corresponding to the first frequency domain unit set and the CC corresponding to the second frequency domain unit set are different; wherein, the first frequency domain unit set includes at least the first downlink frequency domain unit set, and the second frequency domain unit set includes at least the second downlink frequency domain unit set.

[0250] In some embodiments, at least two of the following have a QCL relationship: the first SSB, the PDCCH corresponding to the first system message, the PDSCH corresponding to the first system message, the first control resource, the PDCCH corresponding to the second system message, and the PDSCH corresponding to the second system message; wherein, the PDCCH corresponding to the first system message is a PDCCH carrying the first system message or a PDCCH that schedules the PDSCH carrying the first system message; the PDSCH corresponding to the first system message is a PDSCH carrying the first system message; the PDCCH corresponding to the second system message is a PDCCH carrying the second system message or a PDCCH that schedules the PDSCH carrying the second system message; and the PDSCH corresponding to the second system message is a PDSCH carrying the second system message.

[0251] In some embodiments, the first frequency domain cell set and the second frequency domain cell set are frequency domain cell sets in the first cell; or, the first SSB, the first system message and the second system message all correspond to the first cell.

[0252] In some embodiments, the second frequency domain unit set is the frequency domain unit set in the first cell, and the first frequency domain unit set is the frequency domain unit set in the second cell; or, the first system message and the second system message correspond to the first cell, and the first SSB corresponds to the second cell; or, the second system message corresponds to the first cell, and the first SSB and the first system message correspond to the second cell; wherein, the first cell and the second cell are different.

[0253] In some embodiments, the first SSB is configured to receive the first system message, including: the first SSB is configured to receive N system messages, wherein the N system messages include the first system message; or, an SSB transmission opportunity is configured to receive N system messages, wherein the SSB transmission opportunity includes N SSBs, and each of the N SSBs is configured to receive one system message from the N system messages, wherein the first SSB among the N SSBs is configured to receive the first system message from the N system messages; wherein N is a positive integer.

[0254] In some embodiments, the N system messages include a third system message, which is used to determine a second control resource in the first frequency domain unit set. The receiving module 1210 is further configured to receive a fourth system message based on the second control resource, wherein the second control resource is used to receive the fourth system message, and the fourth system message is used to determine transmission configuration information corresponding to the first frequency domain unit set.

[0255] In some embodiments, the first SSB, the third system message, and the fourth system message correspond to the same cell.

[0256] In some embodiments, the N system messages include a fifth system message, which is used to determine the transmission configuration information corresponding to the first frequency domain unit set.

[0257] In some embodiments, the first SSB and the fifth system message correspond to the same cell.

[0258] In some embodiments, the N system messages include at least one of the following: system messages dedicated to a specific set of functions or capabilities, system messages dedicated to a specific service, system messages dedicated to a specific spectrum resource, and system messages dedicated to a specific RAT.

[0259] In some embodiments, the transmission configuration information corresponding to the first frequency domain unit set corresponds to a first function or capability set; and / or, the transmission configuration information corresponding to the first frequency domain unit set corresponds to a first service.

[0260] In some embodiments, the transmission configuration information corresponding to the second frequency domain unit set corresponds to a second function or capability set; and / or, the transmission configuration information corresponding to the second frequency domain unit set corresponds to a second service.

[0261] In some embodiments, the transmission configuration information corresponding to the second frequency domain unit set corresponds to a non-first function or capability set; and / or, the transmission configuration information corresponding to the second frequency domain unit set corresponds to a non-first service.

[0262] In some embodiments, the first set of frequency domain units and the second set of frequency domain units are aligned in the time domain based on time domain units, wherein the time domain units are one of the following: frames, half-frames, time slots, and symbols.

[0263] In some embodiments, the first SSB is a periodically transmitted channel or signal; and / or, the first system message is periodically transmitted information; and / or, the first control resource is a periodically transmitted resource.

[0264] In some embodiments, the number of frequency domain units in the first downlink frequency domain unit set included in the first frequency domain unit set is less than the number of frequency domain units in the second downlink frequency domain unit set included in the second frequency domain unit set; and / or, the number of frequency domain units in the first uplink frequency domain unit set included in the first frequency domain unit set is less than the number of frequency domain units in the second uplink frequency domain unit set included in the second frequency domain unit set.

[0265] Please refer to Figure 13, which shows a block diagram of a wireless communication device according to another embodiment of this application. This device has the function of implementing the wireless communication method on the network device side described above. This function can be implemented in hardware or by hardware executing corresponding software. The device can be the network device described above, or it can be disposed within a network device. As shown in Figure 13, the device 1300 may include a transmitting module 1310.

[0266] The sending module 1310 is used to send a first system message based on a first synchronization signal block (SSB) sent in a first frequency domain unit set, wherein the first SSB is used by the terminal device to receive the first system message, and the first system message is used to determine a first control resource in a second frequency domain unit set.

[0267] The sending module 1310 is further configured to send a second system message based on the first control resource, wherein the first control resource is used by the terminal device to receive the second system message, and the second system message is used to determine the transmission configuration information corresponding to the second frequency domain unit set.

[0268] In some embodiments, the first SSB is used by the terminal device to receive the first system message, including one of the following: the first SSB carries the first system message; the first SSB is used to determine a first time-frequency resource, the first time-frequency resource being used to transmit a PDSCH carrying the first system message; the first SSB is used to determine a first time-frequency resource, the first time-frequency resource being used to transmit a PDCCH carrying the first system message; the first SSB is used to determine a first time-frequency resource, the first time-frequency resource being used to transmit a PDCCH that schedules the PDSCH carrying the first system message.

[0269] In some embodiments, the first SSB is used to determine the first time-frequency resource, including at least one of the following: the first SSB carries indication information for determining the first time-frequency resource; the first SSB carries indication information for determining the first frequency domain cell set; there is a mapping relationship between the time-frequency resource where the first SSB is located and the first time-frequency resource; or, the first time-frequency resource is determined based on the time-frequency resource where the first SSB is located according to a preset rule.

[0270] In some embodiments, the first time-frequency resource is a time-frequency resource in the first frequency domain cell set, and the first SSB is used to determine at least one of the following: the time domain position of the first time-frequency resource in the first frequency domain cell set, the frequency domain position of the first time-frequency resource in the first frequency domain cell set, the QCL relationship corresponding to the first time-frequency resource; and / or, receiving the first system message in the first frequency domain cell set based on the first SSB.

[0271] In some embodiments, the first system message is used to determine a first control resource in a second frequency domain unit set, including: the first system message is used to determine at least one of the following: information of the second frequency domain unit set; time-domain location information of the first control resource in the second frequency domain unit set; frequency-domain location information of the first control resource in the second frequency domain unit set; QCL relationship corresponding to the first control resource; control resource set information corresponding to the first control resource; search space set information corresponding to the first control resource; subcarrier spacing (SCS) information of the first control resource; function or capability set information corresponding to the second frequency domain unit set; service information corresponding to the second frequency domain unit set; spectrum resource information corresponding to the second frequency domain unit set; first random access resource configuration information corresponding to the first system message; first access prohibition information corresponding to the first system message, wherein the first access prohibition information is used to indicate whether the terminal device is prohibited from receiving the second system message based on the first control resource; cell identifier corresponding to the first cell; indication information on whether the cell identifier corresponding to the first cell is the same as the cell identifier corresponding to the first SSB; wherein, the first cell is a cell corresponding to at least one of the following: the first system message, the second system message, and the second frequency domain unit set.

[0272] In some embodiments, the first control resource is used by the terminal device to receive the second system message, including one of the following: the first control resource is used to transmit a PDCCH carrying the second system message; the first control resource is used to transmit a PDCCH that schedules a PDSCH carrying the second system message.

[0273] In some embodiments, the second system message is used to determine the transmission configuration information corresponding to the second frequency domain unit set, including: the second system message is used to determine at least one of the following: the cell identifier corresponding to the first cell; the second random access resource configuration information corresponding to the first cell; the paging configuration information corresponding to the first cell; the carrier bandwidth configuration information corresponding to the first cell; and the second access prohibition information corresponding to the first cell, wherein the second access prohibition information is used to indicate whether the terminal device is prohibited from accessing the first cell; wherein the first cell is a cell corresponding to at least one of the following: the first system message, the second system message, and the second frequency domain unit set.

[0274] In some embodiments, when the first system message is used to determine the first random access resource configuration information corresponding to the first system message and the second system message is used to determine the second random access resource configuration information corresponding to the first cell, the random access resources determined based on the first random access resource configuration information and the random access resources determined based on the second random access resource configuration information are different, or the random access resources determined based on the first random access resource configuration information and the random access resources determined based on the second random access resource configuration information are at least partially the same.

[0275] In some embodiments, when the first system message is used to determine the first random access resource configuration information corresponding to the first system message, the second system message is not used to determine the second random access resource configuration information corresponding to the first cell; or, when the first system message is not used to determine the first random access resource configuration information corresponding to the first system message, the second system message is used to determine the second random access resource configuration information corresponding to the first cell.

[0276] In some embodiments, the first frequency domain unit set includes a first downlink frequency domain unit set and / or a first uplink frequency domain unit set.

[0277] In some embodiments, when the first frequency domain unit set includes a first uplink frequency domain unit set, the random access resource determined based on the first random access resource configuration information corresponding to the first system message is the random access resource in the first uplink frequency domain unit set.

[0278] In some embodiments, the second frequency domain unit set includes a second downlink frequency domain unit set and / or a second uplink frequency domain unit set.

[0279] In some embodiments, when the second frequency domain unit set includes a second uplink frequency domain unit set, the random access resource determined based on the first random access resource configuration information corresponding to the first system message is the random access resource in the second uplink frequency domain unit set; and / or, the random access resource determined based on the second random access resource configuration information corresponding to the first cell is the random access resource in the second uplink frequency domain unit set.

[0280] In some embodiments, the first frequency domain unit set and the second frequency domain unit set are different, or the CC corresponding to the first frequency domain unit set and the CC corresponding to the second frequency domain unit set are different; wherein, the first frequency domain unit set includes at least the first downlink frequency domain unit set, and the second frequency domain unit set includes at least the second downlink frequency domain unit set.

[0281] In some embodiments, at least two of the following have a QCL relationship: the first SSB, the PDCCH corresponding to the first system message, the PDSCH corresponding to the first system message, the first control resource, the PDCCH corresponding to the second system message, and the PDSCH corresponding to the second system message; wherein, the PDCCH corresponding to the first system message is a PDCCH carrying the first system message or a PDCCH that schedules the PDSCH carrying the first system message; the PDSCH corresponding to the first system message is a PDSCH carrying the first system message; the PDCCH corresponding to the second system message is a PDCCH carrying the second system message or a PDCCH that schedules the PDSCH carrying the second system message; and the PDSCH corresponding to the second system message is a PDSCH carrying the second system message.

[0282] In some embodiments, the first frequency domain cell set and the second frequency domain cell set are frequency domain cell sets in the first cell; or, the first SSB, the first system message and the second system message all correspond to the first cell.

[0283] In some embodiments, the second frequency domain unit set is the frequency domain unit set in the first cell, and the first frequency domain unit set is the frequency domain unit set in the second cell; or, the first system message and the second system message correspond to the first cell, and the first SSB corresponds to the second cell; or, the second system message corresponds to the first cell, and the first SSB and the first system message correspond to the second cell; wherein, the first cell and the second cell are different.

[0284] In some embodiments, the first SSB is configured to receive the first system message, including: the first SSB is configured to receive N system messages, wherein the N system messages include the first system message; or, an SSB transmission opportunity is configured to receive N system messages, wherein the SSB transmission opportunity includes N SSBs, and each of the N SSBs is configured to receive one system message from the N system messages, wherein the first SSB among the N SSBs is configured to receive the first system message from the N system messages; wherein N is a positive integer.

[0285] In some embodiments, the N system messages include a third system message, which is used to determine a second control resource in the first frequency domain unit set. The sending module 1310 is further configured to send a fourth system message based on the second control resource, wherein the second control resource is used to receive the fourth system message, which is used to determine transmission configuration information corresponding to the first frequency domain unit set.

[0286] In some embodiments, the first SSB, the third system message, and the fourth system message correspond to the same cell.

[0287] In some embodiments, the N system messages include a fifth system message, which is used to determine the transmission configuration information corresponding to the first frequency domain unit set.

[0288] In some embodiments, the first SSB and the fifth system message correspond to the same cell.

[0289] In some embodiments, the N system messages include at least one of the following: system messages dedicated to a specific set of functions or capabilities, system messages dedicated to a specific service, system messages dedicated to a specific spectrum resource, and system messages dedicated to a specific RAT.

[0290] In some embodiments, the transmission configuration information corresponding to the first frequency domain unit set corresponds to a first function or capability set; and / or, the transmission configuration information corresponding to the first frequency domain unit set corresponds to a first service.

[0291] In some embodiments, the transmission configuration information corresponding to the second frequency domain unit set corresponds to a second function or capability set; and / or, the transmission configuration information corresponding to the second frequency domain unit set corresponds to a second service.

[0292] In some embodiments, the transmission configuration information corresponding to the second frequency domain unit set corresponds to a non-first function or capability set; and / or, the transmission configuration information corresponding to the second frequency domain unit set corresponds to a non-first service.

[0293] In some embodiments, the first set of frequency domain units and the second set of frequency domain units are aligned in the time domain based on time domain units, wherein the time domain units are one of the following: frames, half-frames, time slots, and symbols.

[0294] In some embodiments, the first SSB is a periodically transmitted channel or signal; and / or, the first system message is periodically transmitted information; and / or, the first control resource is a periodically transmitted resource.

[0295] In some embodiments, the number of frequency domain units in the first downlink frequency domain unit set included in the first frequency domain unit set is less than the number of frequency domain units in the second downlink frequency domain unit set included in the second frequency domain unit set; and / or, the number of frequency domain units in the first uplink frequency domain unit set included in the first frequency domain unit set is less than the number of frequency domain units in the second uplink frequency domain unit set included in the second frequency domain unit set.

[0296] It should be noted that the above embodiments only illustrate the division of the above functional modules when implementing the device. In actual applications, the above functions can be assigned to different functional modules according to actual needs, that is, the content structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0297] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here. For details not described in detail in the apparatus embodiments, please refer to the above method embodiments.

[0298] Please refer to Figure 14, which shows a schematic diagram of the structure of a terminal device provided in one embodiment of this application. The terminal device 1400 may include a processor 1401, a transceiver 1402, and a memory 1403. The processor 1401 is used to implement various processing functions of the terminal device 1400, such as generating information to be sent, processing received information, and controlling transmission and / or reception. The transceiver 1402 is used to implement transmission and / or reception functions, such as implementing the functions of the receiving module 1210 described above.

[0299] The processor 1401 includes one or more processing cores, and the processor 1401 executes various functional applications and information processing by running software programs and modules.

[0300] The transceiver 1402 may include a receiver and a transmitter, for example, the receiver and transmitter may be implemented as the same wireless communication component, which may include a wireless communication chip and a radio frequency antenna.

[0301] The memory 1403 can be connected to the processor 1401 and the transceiver 1402.

[0302] The memory 1403 can be used to store a computer program executed by the processor, and the processor 1401 is used to execute the computer program to implement the various steps in the above method embodiments.

[0303] In some embodiments, transceiver 1402 is configured to receive a first system message based on a first SSB received in a first frequency domain unit set, wherein the first SSB is configured to receive the first system message, and the first system message is configured to determine a first control resource in a second frequency domain unit set; and to receive a second system message based on the first control resource, wherein the first control resource is configured to receive the second system message, and the second system message is configured to determine transmission configuration information corresponding to the second frequency domain unit set.

[0304] For details not described in this embodiment, please refer to the embodiments above, which will not be repeated here.

[0305] Furthermore, the memory can be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: magnetic disks or optical disks, electrically erasable programmable read-only memory, erasable programmable read-only memory, statically accessible memory, read-only memory, magnetic memory, flash memory, and programmable read-only memory.

[0306] Please refer to Figure 15, which shows a schematic diagram of a network device provided in one embodiment of this application. The network device 1500 may include a processor 1501, a transceiver 1502, and a memory 1503. The processor 1501 can be used to implement various processing functions of the network device 1500, such as generating information to be sent, processing received information, and controlling transmission and / or reception. The transceiver 1502 is used to implement transmission and / or reception functions, such as implementing the functions of the aforementioned transmission module 1310.

[0307] The processor 1501 includes one or more processing cores, and the processor 1501 executes various functional applications and information processing by running software programs and modules.

[0308] Transceiver 1502 may include a receiver and a transmitter. For example, transceiver 1502 may include a wired communication component, which may include a wired communication chip and a wired interface (such as a fiber optic interface). Optionally, transceiver 1502 may also include a wireless communication component, which may include a wireless communication chip and a radio frequency antenna.

[0309] The memory 1503 can be connected to the processor 1501 and the transceiver 1502.

[0310] The memory 1503 can be used to store a computer program executed by the processor, and the processor 1501 is used to execute the computer program to implement the various steps performed by the network device in the above method embodiment.

[0311] In some embodiments, transceiver 1502 is configured to send a first system message based on a first SSB sent in a first frequency domain unit set, wherein the first SSB is used by a terminal device to receive the first system message, and the first system message is used to determine a first control resource in a second frequency domain unit set; and based on the first control resource, send a second system message, wherein the first control resource is used by the terminal device to receive the second system message, and the second system message is used to determine transmission configuration information corresponding to the second frequency domain unit set.

[0312] For details not described in this embodiment, please refer to the embodiments above, which will not be repeated here.

[0313] Furthermore, the memory 1503 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: magnetic disks or optical disks, electrically erasable programmable read-only memory, erasable programmable read-only memory, static on-demand memory, read-only memory, magnetic memory, flash memory, and programmable read-only memory.

[0314] This application also provides a computer-readable storage medium storing a computer program for execution by a processor to implement the aforementioned wireless communication method on the terminal device side or the aforementioned wireless communication method on the network device side. In some embodiments, the computer-readable storage medium may include ROM (Read-Only Memory), RAM (Random-Access Memory), SSD (Solid State Drives), or optical disc, etc. The random access memory may include ReRAM (Resistance Random Access Memory) and DRAM (Dynamic Random Access Memory).

[0315] This application also provides a chip, which includes programmable logic circuits and / or program instructions. When the chip is running, it is used to implement the wireless communication method on the terminal device side described above.

[0316] This application embodiment also provides a chip, which includes programmable logic circuits and / or program instructions. When the chip runs in a terminal device, it is used to: receive a first system message based on a first SSB received in a first frequency domain unit set, wherein the first SSB is used to receive the first system message, and the first system message is used to determine a first control resource in a second frequency domain unit set; and receive a second system message based on the first control resource, wherein the first control resource is used to receive the second system message, and the second system message is used to determine transmission configuration information corresponding to the second frequency domain unit set. When the chip runs in the terminal device, it is also used to implement other steps executed by the terminal device as described in the above embodiments, which will not be repeated here.

[0317] This application also provides a chip, which includes programmable logic circuits and / or program instructions, and when the chip is running, it is used to implement the wireless communication method on the network device side described above.

[0318] This application embodiment also provides a chip, which includes programmable logic circuits and / or program instructions. When the chip operates in a network device, it is used to: send a first system message based on a first SSB sent in a first frequency domain unit set, wherein the first SSB is used by a terminal device to receive the first system message, and the first system message is used to determine a first control resource in a second frequency domain unit set; and send a second system message based on the first control resource, wherein the first control resource is used by the terminal device to receive the second system message, and the second system message is used to determine transmission configuration information corresponding to the second frequency domain unit set. When the chip operates in a network device, it is also used to implement other steps performed by the network device as described in the above embodiments, which will not be repeated here.

[0319] This application also provides a computer program product, which includes computer instructions stored in a computer-readable storage medium. A processor reads and executes the computer instructions from the computer-readable storage medium to implement the wireless communication method on the terminal device side or the wireless communication method on the network device side.

[0320] It should be understood that the term "instruction" mentioned in the embodiments of this application can be a direct instruction, an indirect instruction, or an indication of a relationship. For example, A instructing B can mean that A directly instructs B, such as B being able to obtain information through A; it can also mean that A indirectly instructs B, such as A instructing C, so B can obtain information through C; or it can mean that there is a relationship between A and B.

[0321] In the description of the embodiments of this application, the term "correspondence" may indicate that there is a direct or indirect correspondence between two things, or that there is an association between two things, or that there is a relationship of instruction and being instructed, configuration and being configured, etc.

[0322] In some embodiments of this application, "predefined" can be achieved by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices). This application does not limit the specific implementation method. For example, predefined can refer to what is defined in the protocol.

[0323] In some embodiments of this application, the term "protocol" may refer to standard protocols in the field of communications, such as BLE protocol, Wi-Fi protocol, and related protocols applied in future communication systems. This application does not limit the scope of these protocols.

[0324] In this article, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0325] In this article, "greater than or equal to" can mean greater than or equal to, and "less than or equal to" can mean less than or equal to.

[0326] Furthermore, the step numbers described herein are merely illustrative of one possible execution order between steps. In some other embodiments, the steps may not be executed in the order of their numbers, such as two steps with different numbers being executed simultaneously, or two steps with different numbers being executed in the reverse order of the illustration. This application does not limit this.

[0327] Those skilled in the art will recognize that the functions described in the embodiments of this application in one or more of the above examples can be implemented using hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or code on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any medium that facilitates the transfer of a computer program from one place to another. Storage media can be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0328] The above description is merely an exemplary embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A wireless communication method, characterized in that, The method is executed by a terminal device, and the method includes: Based on the first synchronization signal block (SSB) received in the first frequency domain unit set, a first system message is received, wherein the first SSB is used to receive the first system message, and the first system message is used to determine a first control resource in the second frequency domain unit set; Based on the first control resource, a second system message is received, wherein the first control resource is used to receive the second system message, and the second system message is used to determine the transmission configuration information corresponding to the second frequency domain unit set.

2. The method according to claim 1, characterized in that, The first SSB is used to receive the first system message, including one of the following: The first SSB carries the first system message; The first SSB is used to determine the first time-frequency resource, which is used to transmit the physical downlink shared channel (PDSCH) carrying the first system message; The first SSB is used to determine the first time-frequency resource, which is used to transmit the physical downlink control channel (PDCCH) carrying the first system message; The first SSB is used to determine the first time-frequency resource, which is used to transmit the PDCCH that carries the PDSCH of the first system message.

3. The method according to claim 2, characterized in that, The first SSB is used to determine a first time-frequency resource, including at least one of the following: The first SSB carries indication information for determining the first time-frequency resource; The first SSB carries indication information for determining the first frequency domain cell set; There is a mapping relationship between the time-frequency resource where the first SSB is located and the first time-frequency resource, or the first time-frequency resource is determined based on the time-frequency resource where the first SSB is located according to a preset rule.

4. The method according to claim 2 or 3, characterized in that, The first time-frequency resource is the time-frequency resource in the first frequency domain cell set, and the first SSB is used to determine at least one of the following: the time domain position of the first time-frequency resource in the first frequency domain cell set, the frequency domain position of the first time-frequency resource in the first frequency domain cell set, and the quasi-co-address QCL relationship corresponding to the first time-frequency resource; And / or, The first system message is received in the first frequency domain unit set based on the first SSB.

5. The method according to any one of claims 1 to 4, characterized in that, The first system message is used to determine a first control resource in the second frequency domain unit set, including: the first system message is used to determine at least one of the following: Information about the second frequency domain unit set; The temporal location information of the first control resource in the second frequency domain unit set; The frequency domain location information of the first control resource in the second frequency domain unit set; The QCL relationship corresponding to the first control resource; The control resource set information corresponding to the first control resource; Information on the search space set corresponding to the first control resource; The subcarrier spacing (SCS) information of the first control resource; Information on the set of functions or capabilities corresponding to the second set of frequency domain units; Service information corresponding to the second frequency domain unit set; Spectrum resource information corresponding to the second set of frequency domain units; The first random access resource configuration information corresponding to the first system message; The first access prohibition information corresponding to the first system message is used to indicate whether the terminal device is prohibited from receiving the second system message based on the first control resource; The community sign corresponding to the first community; Indication information regarding whether the cell identifier corresponding to the first cell is the same as the cell identifier corresponding to the first SSB; The first cell is a cell corresponding to at least one of the following: the first system message, the second system message, and the second frequency domain unit set.

6. The method according to any one of claims 1 to 5, characterized in that, The first control resource is used to receive the second system message, including one of the following: The first control resource is used to transmit the PDCCH carrying the second system message; The first control resource is used to transmit and schedule the PDCCH carrying the PDSCH of the second system message.

7. The method according to any one of claims 1 to 6, characterized in that, The second system message is used to determine the transmission configuration information corresponding to the second frequency domain unit set, including: the second system message is used to determine at least one of the following: The community sign corresponding to the first community; The second random access resource configuration information corresponding to the first cell; The paging configuration information corresponding to the first cell; The carrier bandwidth configuration information corresponding to the first cell; The second access prohibition information corresponding to the first cell is used to indicate whether the terminal device is prohibited from accessing the first cell; The first cell is a cell corresponding to at least one of the following: the first system message, the second system message, and the second frequency domain unit set.

8. The method according to any one of claims 1 to 7, characterized in that When the first system message is used to determine the first random access resource configuration information corresponding to the first system message and the second system message is used to determine the second random access resource configuration information corresponding to the first cell, the random access resources determined based on the first random access resource configuration information and the random access resources determined based on the second random access resource configuration information are different, or the random access resources determined based on the first random access resource configuration information and the random access resources determined based on the second random access resource configuration information are at least partially the same.

9. The method according to any one of claims 1 to 8, characterized in that, When the first system message is used to determine the first random access resource configuration information corresponding to the first system message, the second system message is not used to determine the second random access resource configuration information corresponding to the first cell; or, If the first system message is not used to determine the first random access resource configuration information corresponding to the first system message, the second system message is used to determine the second random access resource configuration information corresponding to the first cell.

10. The method according to any one of claims 1 to 9, characterized in that, The first frequency domain unit set includes a first downlink frequency domain unit set and / or a first uplink frequency domain unit set.

11. The method according to claim 10, characterized in that, When the first frequency domain unit set includes the first uplink frequency domain unit set, the random access resource determined based on the first random access resource configuration information corresponding to the first system message is the random access resource in the first uplink frequency domain unit set.

12. The method according to any one of claims 1 to 11, characterized in that, The second frequency domain unit set includes a second downlink frequency domain unit set and / or a second uplink frequency domain unit set.

13. The method according to claim 12, characterized in that, When the second frequency domain unit set includes the second uplink frequency domain unit set, the random access resource determined based on the first random access resource configuration information corresponding to the first system message is the random access resource in the second uplink frequency domain unit set; and / or, The random access resources determined based on the second random access resource configuration information corresponding to the first cell are the random access resources in the second uplink frequency domain unit set.

14. The method according to any one of claims 1 to 13, characterized in that, The first set of frequency domain units and the second set of frequency domain units are different, or the carrier CC corresponding to the first set of frequency domain units and the carrier CC corresponding to the second set of frequency domain units are different; Wherein, the first frequency domain unit set includes at least the first downlink frequency domain unit set, and the second frequency domain unit set includes at least the second downlink frequency domain unit set.

15. The method according to any one of claims 1 to 14, characterized in that, There is a QCL relationship between at least two of the following: The first SSB, the PDCCH corresponding to the first system message, the PDSCH corresponding to the first system message, the first control resource, the PDCCH corresponding to the second system message, and the PDSCH corresponding to the second system message; Wherein, the PDCCH corresponding to the first system message is either a PDCCH carrying the first system message or a PDCCH that schedules the PDSCH carrying the first system message. The PDSCH corresponding to the first system message is the PDSCH that carries the first system message; The PDCCH corresponding to the second system message is either a PDCCH carrying the second system message or a PDCCH that schedules the PDSCH carrying the second system message. The PDSCH corresponding to the second system message is the PDSCH that carries the second system message.

16. The method according to any one of claims 1 to 15, characterized in that, The first set of frequency domain cells and the second set of frequency domain cells are the set of frequency domain cells in the first cell; or, The first SSB, the first system message, and the second system message all correspond to the first cell.

17. The method according to any one of claims 1 to 15, characterized in that, The second set of frequency domain cells is the set of frequency domain cells in the first cell, and the first set of frequency domain cells is the set of frequency domain cells in the second cell; or, The first system message and the second system message correspond to the first cell, and the first SSB corresponds to the second cell; or, The second system message corresponds to the first cell, and the first SSB and the first system message correspond to the second cell; The first cell and the second cell are different.

18. The method according to any one of claims 1 to 17, characterized in that, The first SSB is used to receive the first system message, including: The first SSB is used to receive N system messages, wherein the N system messages include the first system message; or, An SSB transport opportunity is used to receive N system messages. The SSB transport opportunity includes N SSBs. Each of the N SSBs is used to receive one system message among the N system messages. The first SSB among the N SSBs is used to receive the first system message among the N system messages. Where N is a positive integer.

19. The method according to claim 18, characterized in that, The N system messages include a third system message, which is used to determine a second control resource in the first frequency domain unit set; the method further includes: Based on the second control resource, a fourth system message is received, wherein the second control resource is used to receive the fourth system message, and the fourth system message is used to determine the transmission configuration information corresponding to the first frequency domain unit set.

20. The method according to claim 19, characterized in that, The first SSB, the third system message, and the fourth system message correspond to the same cell.

21. The method according to claim 18, characterized in that, The N system messages include a fifth system message, which is used to determine the transmission configuration information corresponding to the first frequency domain unit set.

22. The method according to claim 21, characterized in that, The first SSB and the fifth system message correspond to the same cell.

23. The method according to any one of claims 18 to 22, characterized in that, The N system messages include at least one of the following: system messages dedicated to a specific set of functions or capabilities, system messages dedicated to a specific service, system messages dedicated to a specific spectrum resource, and system messages dedicated to a specific radio access technology (RAT).

24. The method according to any one of claims 1 to 23, characterized in that, The transmission configuration information corresponding to the first set of frequency domain units corresponds to the first set of functions or capabilities; and / or, the transmission configuration information corresponding to the first set of frequency domain units corresponds to the first service.

25. The method according to any one of claims 1 to 24, characterized in that, The transmission configuration information corresponding to the second frequency domain unit set corresponds to the second function or capability set; and / or, the transmission configuration information corresponding to the second frequency domain unit set corresponds to the second service.

26. The method according to any one of claims 1 to 24, characterized in that, The transmission configuration information corresponding to the second frequency domain unit set corresponds to a non-first function or capability set; and / or, the transmission configuration information corresponding to the second frequency domain unit set corresponds to a non-first service.

27. The method according to any one of claims 1 to 26, characterized in that, The first set of frequency domain units and the second set of frequency domain units are aligned in the time domain based on time domain units, wherein the time domain units are one of the following: frames, half-frames, time slots, and symbols.

28. The method according to any one of claims 1 to 27, characterized in that, The first SSB is a periodically transmitted channel or signal; and / or, The first system message is periodically transmitted information; and / or, The first control resource is a periodic resource.

29. The method according to any one of claims 1 to 28, characterized in that, The number of frequency domain units in the first downlink frequency domain unit set included in the first frequency domain unit set is less than the number of frequency domain units in the second downlink frequency domain unit set included in the second frequency domain unit set; and / or, The number of frequency domain units in the first uplink frequency domain unit set included in the first frequency domain unit set is less than the number of frequency domain units in the second uplink frequency domain unit set included in the second frequency domain unit set.

30. A wireless communication method, characterized in that, The method is performed by a network device, and the method includes: Based on the first synchronization signal block (SSB) sent in the first frequency domain unit set, a first system message is sent, wherein the first SSB is used by the terminal device to receive the first system message, and the first system message is used to determine the first control resource in the second frequency domain unit set; Based on the first control resource, a second system message is sent, wherein the first control resource is used for the terminal device to receive the second system message, and the second system message is used to determine the transmission configuration information corresponding to the second frequency domain unit set.

31. The method according to claim 30, characterized in that, The first SSB is used by the terminal device to receive the first system message, including one of the following: The first SSB carries the first system message; The first SSB is used to determine the first time-frequency resource, which is used to transmit the physical downlink shared channel (PDSCH) carrying the first system message; The first SSB is used to determine the first time-frequency resource, which is used to transmit the physical downlink control channel (PDCCH) carrying the first system message; The first SSB is used to determine the first time-frequency resource, which is used to transmit the PDCCH that carries the PDSCH of the first system message.

32. The method according to claim 31, characterized in that, The first SSB is used to determine a first time-frequency resource, including at least one of the following: The first SSB carries indication information for determining the first time-frequency resource; The first SSB carries indication information for determining the first frequency domain cell set; There is a mapping relationship between the time-frequency resource where the first SSB is located and the first time-frequency resource, or the first time-frequency resource is determined based on the time-frequency resource where the first SSB is located according to a preset rule.

33. The method according to claim 31 or 32, characterized in that, The first time-frequency resource is the time-frequency resource in the first frequency domain cell set, and the first SSB is used to determine at least one of the following: the time domain position of the first time-frequency resource in the first frequency domain cell set, the frequency domain position of the first time-frequency resource in the first frequency domain cell set, and the quasi-co-address QCL relationship corresponding to the first time-frequency resource; And / or, The terminal device receives the first system message in the first frequency domain unit set based on the first SSB.

34. The method according to any one of claims 30 to 33, characterized in that, The first system message is used to determine a first control resource in the second frequency domain unit set, including: the first system message is used to determine at least one of the following: Information about the second frequency domain unit set; The temporal location information of the first control resource in the second frequency domain unit set; The frequency domain location information of the first control resource in the second frequency domain unit set; The QCL relationship corresponding to the first control resource; The control resource set information corresponding to the first control resource; Information on the search space set corresponding to the first control resource; The subcarrier spacing (SCS) information of the first control resource; Information on the set of functions or capabilities corresponding to the second set of frequency domain units; Service information corresponding to the second frequency domain unit set; Spectrum resource information corresponding to the second set of frequency domain units; The first random access resource configuration information corresponding to the first system message; The first access prohibition information corresponding to the first system message is used to indicate whether the terminal device is prohibited from receiving the second system message based on the first control resource; The community sign corresponding to the first community; Indication information regarding whether the cell identifier corresponding to the first cell is the same as the cell identifier corresponding to the first SSB; The first cell is a cell corresponding to at least one of the following: the first system message, the second system message, and the second frequency domain unit set.

35. The method according to any one of claims 30 to 34, characterized in that, The first control resource is used by the terminal device to receive the second system message, including one of the following: The first control resource is used to transmit the PDCCH carrying the second system message; The first control resource is used to transmit and schedule the PDCCH carrying the PDSCH of the second system message.

36. The method according to any one of claims 30 to 35, characterized in that, The second system message is used to determine the transmission configuration information corresponding to the second frequency domain unit set, including: the second system message is used to determine at least one of the following: The community sign corresponding to the first community; The second random access resource configuration information corresponding to the first cell; The paging configuration information corresponding to the first cell; The carrier bandwidth configuration information corresponding to the first cell; The second access prohibition information corresponding to the first cell is used to indicate whether the terminal device is prohibited from accessing the first cell; The first cell is a cell corresponding to at least one of the following: the first system message, the second system message, and the second frequency domain unit set.

37. The method according to any one of claims 30 to 36, characterized in that, In the case where the first system message is used to determine the first random access resource configuration information corresponding to the first system message and the second system message is used to determine the second random access resource configuration information corresponding to the first cell, the random access resources determined based on the first random access resource configuration information and the random access resources determined based on the second random access resource configuration information are different, or the random access resources determined based on the first random access resource configuration information and the random access resources determined based on the second random access resource configuration information are at least partially the same.

38. The method according to any one of claims 30 to 37, characterized in that, When the first system message is used to determine the first random access resource configuration information corresponding to the first system message, the second system message is not used to determine the second random access resource configuration information corresponding to the first cell; or, If the first system message is not used to determine the first random access resource configuration information corresponding to the first system message, the second system message is used to determine the second random access resource configuration information corresponding to the first cell.

39. The method according to any one of claims 30 to 38, characterized in that, The first frequency domain unit set includes a first downlink frequency domain unit set and / or a first uplink frequency domain unit set.

40. The method according to claim 39, characterized in that, When the first frequency domain unit set includes the first uplink frequency domain unit set, the random access resource determined based on the first random access resource configuration information corresponding to the first system message is the random access resource in the first uplink frequency domain unit set.

41. The method according to any one of claims 30 to 40, characterized in that, The second frequency domain unit set includes a second downlink frequency domain unit set and / or a second uplink frequency domain unit set.

42. The method according to claim 41, characterized in that, When the second frequency domain unit set includes the second uplink frequency domain unit set, the random access resource determined based on the first random access resource configuration information corresponding to the first system message is the random access resource in the second uplink frequency domain unit set; and / or, The random access resources determined based on the second random access resource configuration information corresponding to the first cell are the random access resources in the second uplink frequency domain unit set.

43. The method according to any one of claims 30 to 42, characterized in that, The first set of frequency domain units and the second set of frequency domain units are different, or the carrier CC corresponding to the first set of frequency domain units and the carrier CC corresponding to the second set of frequency domain units are different; Wherein, the first frequency domain unit set includes at least the first downlink frequency domain unit set, and the second frequency domain unit set includes at least the second downlink frequency domain unit set.

44. The method according to any one of claims 30 to 43, characterized in that, There is a QCL relationship between at least two of the following: The first SSB, the PDCCH corresponding to the first system message, the PDSCH corresponding to the first system message, the first control resource, the PDCCH corresponding to the second system message, and the PDSCH corresponding to the second system message; Wherein, the PDCCH corresponding to the first system message is either a PDCCH carrying the first system message or a PDCCH that schedules the PDSCH carrying the first system message. The PDSCH corresponding to the first system message is the PDSCH that carries the first system message; The PDCCH corresponding to the second system message is either a PDCCH carrying the second system message or a PDCCH that schedules the PDSCH carrying the second system message. The PDSCH corresponding to the second system message is the PDSCH that carries the second system message.

45. The method according to any one of claims 30 to 44, characterized in that, The first set of frequency domain cells and the second set of frequency domain cells are the set of frequency domain cells in the first cell; or, The first SSB, the first system message, and the second system message all correspond to the first cell.

46. ​​The method according to any one of claims 30 to 44, characterized in that, The second set of frequency domain cells is the set of frequency domain cells in the first cell, and the first set of frequency domain cells is the set of frequency domain cells in the second cell; or, The first system message and the second system message correspond to the first cell, and the first SSB corresponds to the second cell; or, The second system message corresponds to the first cell, and the first SSB and the first system message correspond to the second cell; The first cell and the second cell are different.

47. The method according to any one of claims 30 to 46, characterized in that, The first SSB is used by the terminal device to receive the first system message, including: The first SSB is used by the terminal device to receive N system messages, wherein the N system messages include the first system message; or, An SSB transmission opportunity is used by the terminal device to receive N system messages. The SSB transmission opportunity includes N SSBs. Each of the N SSBs is used to receive one system message among the N system messages. The first SSB among the N SSBs is used to receive the first system message among the N system messages. Where N is a positive integer.

48. The method according to claim 47, characterized in that, The N system messages include a third system message, which is used to determine a second control resource in the first frequency domain unit set; the method further includes: Based on the second control resource, a fourth system message is sent, wherein the second control resource is used to receive the fourth system message, and the fourth system message is used to determine the transmission configuration information corresponding to the first frequency domain unit set.

49. The method according to claim 48, characterized in that, The first SSB, the third system message, and the fourth system message correspond to the same cell.

50. The method according to claim 47, characterized in that, The N system messages include a fifth system message, which is used to determine the transmission configuration information corresponding to the first frequency domain unit set.

51. The method according to claim 50, characterized in that, The first SSB and the fifth system message correspond to the same cell.

52. The method according to any one of claims 47 to 51, characterized in that, The N system messages include at least one of the following: system messages dedicated to a specific set of functions or capabilities, system messages dedicated to a specific service, system messages dedicated to a specific spectrum resource, and system messages dedicated to a specific radio access technology (RAT).

53. The method according to any one of claims 30 to 52, characterized in that, The transmission configuration information corresponding to the first set of frequency domain units corresponds to the first set of functions or capabilities; and / or, the transmission configuration information corresponding to the first set of frequency domain units corresponds to the first service.

54. The method according to any one of claims 30 to 53, characterized in that, The transmission configuration information corresponding to the second frequency domain unit set corresponds to the second function or capability set; and / or, the transmission configuration information corresponding to the second frequency domain unit set corresponds to the second service.

55. The method according to any one of claims 30 to 53, characterized in that, The transmission configuration information corresponding to the second frequency domain unit set corresponds to a non-first function or capability set; and / or, the transmission configuration information corresponding to the second frequency domain unit set corresponds to a non-first service.

56. The method according to any one of claims 30 to 55, characterized in that, The first set of frequency domain units and the second set of frequency domain units are aligned in the time domain based on time domain units, wherein the time domain units are one of the following: frames, half-frames, time slots, and symbols.

57. The method according to any one of claims 30 to 56, characterized in that, The first SSB is a periodically transmitted channel or signal; and / or, The first system message is periodically transmitted information; and / or, The first control resource is a periodic resource.

58. The method according to any one of claims 30 to 57, characterized in that, The number of frequency domain units in the first downlink frequency domain unit set included in the first frequency domain unit set is less than the number of frequency domain units in the second downlink frequency domain unit set included in the second frequency domain unit set; and / or, The number of frequency domain units in the first uplink frequency domain unit set included in the first frequency domain unit set is less than the number of frequency domain units in the second uplink frequency domain unit set included in the second frequency domain unit set.

59. A wireless communication device, characterized in that, The device includes: The receiving module is configured to receive a first system message based on a first synchronization signal block (SSB) received in a first frequency domain unit set, wherein the first SSB is used to receive the first system message, and the first system message is used to determine a first control resource in a second frequency domain unit set. The receiving module is further configured to receive a second system message based on the first control resource, wherein the first control resource is configured to receive the second system message, and the second system message is configured to determine the transmission configuration information corresponding to the second frequency domain unit set.

60. A wireless communication device, characterized in that, The device includes: The transmitting module is configured to transmit a first system message based on a first synchronization signal block (SSB) transmitted in a first frequency domain unit set, wherein the first SSB is used by the terminal device to receive the first system message, and the first system message is used to determine a first control resource in a second frequency domain unit set. The sending module is further configured to send a second system message based on the first control resource, wherein the first control resource is used by the terminal device to receive the second system message, and the second system message is used to determine the transmission configuration information corresponding to the second frequency domain unit set.

61. A communication device, characterized in that, The communication device includes a processor and a memory, the memory storing a computer program, the processor executing the computer program to implement the method as claimed in any one of claims 1 to 29, or to implement the method as claimed in any one of claims 30 to 58.

62. A computer-readable storage medium, characterized in that, The storage medium stores a computer program that is executed by a processor to implement the method as described in any one of claims 1 to 29, or the method as described in any one of claims 30 to 58.

63. A chip, characterized in that, The chip includes programmable logic circuitry and / or program instructions, which, when the chip is running, are used to implement the method as described in any one of claims 1 to 29, or to implement the method as described in any one of claims 30 to 58.

64. A computer program product, characterized in that, The computer program product includes computer instructions stored in a computer-readable storage medium, which a processor reads from and executes to implement the method as claimed in any one of claims 1 to 29, or the method as claimed in any one of claims 30 to 58.

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