Broadcast channel transmission method and apparatus, terminal, network-side device, and medium

Abstract

The application discloses a broadcast channel transmission method and device, a terminal, a network side equipment and a medium, and belongs to the technical field of communication. The broadcast channel transmission method comprises the following steps: a first terminal receives a broadcast channel on at least one resource set in a first resource set and a second resource set, wherein the first resource set and the second resource set are used for transmission of the broadcast channel; wherein the first resource set and the second resource set overlap in the time domain and do not overlap in the frequency domain.

Description

Technical Field

[0001] This application belongs to the field of communication technology, specifically relating to a broadcast channel transmission method, apparatus, terminal, network-side equipment, and medium. Background Technology

[0002] Currently, in the 5th generation (5 th In 5G networks, network-side equipment can broadcast a Synchronization Signal Block (SSB). This SSB may include a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS), and a Physical Broadcast Channel (PBCH). Terminals can receive this SSB, synchronize their time based on the PSS and SSS, and perform random access based on the Master Information Block (MIB) carried on the PBCH to access the cell corresponding to the network-side equipment.

[0003] However, since there may be situations where the terminal cannot fully receive the information carried on the PBCH, the demodulation performance of the received information carried on the PBCH may be poor. Therefore, the terminal may be unable to determine the MIB, thus preventing the terminal from performing random access. As a result, the success rate of random access is low. Summary of the Invention

[0004] This application provides a broadcast channel transmission method, apparatus, terminal, network-side equipment, and medium, which can solve the problem of low success rate of random access.

[0005] In a first aspect, a broadcast channel transmission method is provided, executed by a first terminal, the method comprising: the first terminal receiving a broadcast channel on at least one of a first resource set and a second resource set, the first resource set and the second resource set being used for the transmission of the broadcast channel; wherein the first resource set and the second resource set overlap in the time domain and do not overlap in the frequency domain.

[0006] Secondly, a broadcast channel transmission method is provided, executed by a network-side device. The method includes: the network-side device transmitting a broadcast channel on a first resource set and a second resource set, the first resource set and the second resource set being used for the transmission of the broadcast channel; wherein the first resource set and the second resource set overlap in the time domain but do not overlap in the frequency domain.

[0007] Thirdly, a broadcast channel transmission apparatus is provided, comprising: a receiving module. The receiving module is configured to receive a broadcast channel on at least one of a first resource set and a second resource set, the first and second resource sets being used for the transmission of the broadcast channel; wherein the first and second resource sets overlap in the time domain but do not overlap in the frequency domain.

[0008] Fourthly, a broadcast channel transmission apparatus is provided, comprising: a transmitting module. The transmitting module is configured to transmit a broadcast channel on at least one of a first resource set and a second resource set, the first resource set and the second resource set being used for the transmission of the broadcast channel; wherein the first resource set and the second resource set overlap in the time domain but do not overlap in the frequency domain.

[0009] Fifthly, a broadcast channel transmission apparatus is provided, the apparatus being configured to perform the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0010] In a sixth aspect, a terminal is provided, the terminal including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect.

[0011] In a seventh aspect, a terminal is provided, including a processor and a communication interface, wherein the communication interface is used to transmit a broadcast channel on at least one of a first resource set and a second resource set, the first resource set and the second resource set being used for the transmission of the broadcast channel; wherein the first resource set and the second resource set overlap in the time domain and do not overlap in the frequency domain.

[0012] Eighthly, a network-side device is provided, the network-side device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the second aspect.

[0013] A ninth aspect provides a network-side device, including a processor and a communication interface, wherein the communication interface is used to transmit a broadcast channel on at least one of a first resource set and a second resource set, the first resource set and the second resource set being used for the transmission of the broadcast channel; wherein the first resource set and the second resource set overlap in the time domain but do not overlap in the frequency domain.

[0014] In a tenth aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or implement the steps of the method described in the second aspect.

[0015] Eleventhly, a wireless communication system is provided, comprising: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the method as described in the first aspect, and the network-side device can be used to perform the steps of the method as described in the second aspect.

[0016] In a twelfth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run a program or instructions to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0017] In a thirteenth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the method as described in the first aspect, or to implement the steps of the method as described in the second aspect.

[0018] In this embodiment of the application, the first terminal can receive a broadcast channel on at least one of the first resource set and the second resource set, which are used for the transmission of the broadcast channel; wherein the first resource set and the second resource set overlap in the time domain but do not overlap in the frequency domain. Since the first terminal can receive the broadcast channel on at least one of the first and second resource sets, instead of receiving it on both sets, it can receive the broadcast channel on a single resource set with limited bandwidth, rather than on the entire transmission resource of the broadcast channel. This reduces the probability of the first terminal failing to receive the complete information carried on the broadcast channel, thus improving its demodulation performance and reducing the likelihood of the terminal being unable to determine the information on the broadcast channel, thereby preventing the terminal from being unable to perform random access. Alternatively, the first terminal can receive the broadcast channel on both the first and second resource sets with greater bandwidth, meaning it can receive it on the entire transmission resource of the broadcast channel. This avoids reducing the amount of information received from the broadcast channel, ensuring its demodulation performance and further reducing the likelihood of the terminal being unable to determine the information on the broadcast channel, thus preventing the terminal from being unable to perform random access. Therefore, the success rate of random access can be improved.

[0019] In this embodiment of the application, the network-side device transmits a broadcast channel on a first resource set and a second resource set, which are used for the transmission of the broadcast channel; wherein the first resource set and the second resource set overlap in the time domain but do not overlap in the frequency domain. Since network-side devices can transmit broadcast channels on both the first and second resource sets, different terminals can receive broadcast channels on different resource sets. This means a terminal with limited receiving bandwidth can receive broadcast channels on a single resource set, rather than on the entire transmission resource of the broadcast channel. This reduces the probability of a terminal with limited bandwidth failing to receive the complete information carried on the broadcast channel, thus improving its demodulation performance and reducing the likelihood of it being unable to determine the information. Alternatively, a terminal with greater receiving bandwidth can receive broadcast channels on both the first and second resource sets. This means it can receive broadcast channels on the entire transmission resource of the broadcast channel, preventing a reduction in the amount of information received and ensuring its demodulation performance. This further reduces the likelihood of a terminal being unable to determine the information and thus prevents it from being unable to perform random access. In this way, the success rate of random access can be improved. Attached Figure Description

[0020] Figure 1A This is a schematic diagram of the SSB structure in related technologies;

[0021] Figure 1B This is a schematic diagram of channel bandwidth and transmission bandwidth in related technologies;

[0022] Figure 2 This is a block diagram of a wireless communication system provided in an embodiment of this application;

[0023] Figure 3 This is one of the flowcharts illustrating the broadcast channel transmission method provided in the embodiments of this application;

[0024] Figure 4A This is one of the schematic diagrams of the second resource set and the third resource set in the broadcast channel transmission method provided in the embodiments of this application;

[0025] Figure 4B This is a second schematic diagram of the second resource set and the third resource set in the broadcast channel transmission method provided in the embodiments of this application;

[0026] Figure 5 This is a second schematic flowchart of the broadcast channel transmission method provided in the embodiments of this application;

[0027] Figure 6 This is the third flowchart illustrating the broadcast channel transmission method provided in this application embodiment;

[0028] Figure 7 This is the fourth flowchart illustrating the broadcast channel transmission method provided in the embodiments of this application;

[0029] Figure 8 This is one of the structural schematic diagrams of the broadcast channel transmission device provided in the embodiments of this application;

[0030] Figure 9 This is a second schematic diagram of the structure of the broadcast channel transmission device provided in the embodiments of this application;

[0031] Figure 10 This is a schematic diagram of the hardware structure of the communication device provided in the embodiments of this application;

[0032] Figure 11 This is a schematic diagram of the hardware structure of the terminal provided in the embodiments of this application;

[0033] Figure 12 This is a schematic diagram of the hardware structure of the network-side device provided in the embodiments of this application. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0035] The following will explain the technical terms used in this application.

[0036] 1. Synchronization Signal Block (SSB)

[0037] Currently, to enable the network to search for suitable cells and synchronize with the selected cells, network-side equipment typically needs to broadcast a Synchronization Signal Bus (SSB). In 5th Generation (5G) New Radio (NR) systems, the SSB includes synchronization signals (such as the Primary Synchronization Signal (PSS) and Secondary Synchronization Signal (SSS)) and the Physical Broadcast Channel (PBCH). The PSS and SSS are used for signal synchronization, while the PBCH is used to transmit system messages, which include the most important system information, also called the Master Information Block (MIB).

[0038] In 5G NR systems, the combination of SSB is as follows: Figure 1A As shown, the SSB resources consist of 240 consecutive subcarriers (i.e., 20 resource blocks (RBs)) in the frequency domain and 4 consecutive Orthogonal Frequency-Division Multiplexing (OFDM) symbols in the time domain. Figure 1A In the OFDM symbol, 0#, 1#, 2#, 3#, PSS is a sequence of length 127, mapped on the first OFDM symbol, occupying the middle 127 subcarriers (i.e., from subcarrier 56# to subcarrier 182#); SSS is also a sequence of length 127, located on the third OFDM symbol of SSB, occupying the middle 127 subcarriers (i.e., from subcarrier 56# to subcarrier 182#); PBCH resources are located on the second to fourth OFDM symbols of SSB, with 240 subcarriers each on the second and fourth OFDM symbols, and 96 subcarriers on the third OFDM symbol. Therefore, PBCH resources total 576 REs. The demodulation reference signals (DMRS) associated with PBCH occupy 1 / 4 of these resources. Therefore, the PBCH payload occupies a certain number of resource elements. The number of elements (REs) is 576*3 / 4=432, and quadrature phase shift keying (QPSK) modulation is used. The size of the transport block (TB) is 864 bits.

[0039] 2. Channel bandwidth and transmission bandwidth

[0040] Channel bandwidth refers to the bandwidth of a single radio frequency (RF) carrier supported by a 5G base station. NR can support different terminal channel bandwidths on the same carrier for sending or receiving signals to terminals connected to network-side devices. The carrier bandwidth available for data transmission within the channel bandwidth is called the transmission bandwidth. To avoid interference between adjacent channels, a certain guard band needs to be reserved at the edge of the channel bandwidth, such as... Figure 1B As shown in Tables 1 and 2, the 5G NR system defines the minimum guard band and maximum transmission bandwidth configuration corresponding to each channel bandwidth and subcarrier spacing.

[0041] Among them, such as Figure 1B As shown, the unit of channel bandwidth can be megahertz (MHz), and this channel bandwidth can include frequency domain resources between two channel edges. Transmission bandwidth can be the frequency domain resources within the channel bandwidth excluding the two guard bands. This transmission bandwidth can include multiple redundancy blocks (RBs), among which active RBs can be included, allowing the terminal (or network-side device) to transmit or receive signals on the active RBs.

[0042] Table 1 shows the maximum transmission bandwidth configurations for different subcarrier spacings (SCS), as shown in Table 1:

[0043] Table 1

[0044] Specifically, with an SCS of 15kHz, if the channel bandwidth is 3MHz, the number of RBs in the transmission bandwidth can be 15.

[0045]

[0046] If the channel bandwidth is 5MHz, the number of RBs in the transmission bandwidth can be 25. If the channel bandwidth is 10MHz, the number of RBs in the transmission bandwidth can be 52. If the channel bandwidth is 15MHz, the number of RBs in the transmission bandwidth can be 38, and so on.

[0047] With an SCS of 30kHz, if the channel bandwidth is 3MHz, the number of RBs in the transmission bandwidth can be N / A, meaning there is no transmission bandwidth. If the channel bandwidth is 5MHz, the number of RBs in the transmission bandwidth can be 11. If the channel bandwidth is 10MHz, the number of RBs in the transmission bandwidth can be 24. If the channel bandwidth is 15MHz, the number of RBs in the transmission bandwidth can be 38, and so on.

[0048] With an SCS of 60kHz, if the channel bandwidth is 3MHz, the number of RBs in the transmission bandwidth can be N / A, meaning there is no transmission bandwidth. If the channel bandwidth is 5MHz, the number of RBs in the transmission bandwidth can be N / A, meaning there is no transmission bandwidth. If the channel bandwidth is 10MHz, the number of RBs in the transmission bandwidth can be 11. If the channel bandwidth is 15MHz, the number of RBs in the transmission bandwidth can be 18, and so on.

[0049] Table 2 shows the minimum guard band configurations for different SCSs, as shown in Table 2:

[0050] Table 2

[0051]

[0052] Specifically, with an SCS of 15kHz, if the channel bandwidth is 3MHz, the guard band can be 142.5; if the channel bandwidth is 5MHz, the guard band can be 242.5; if the channel bandwidth is 10MHz, the guard band can be 312.5; if the channel bandwidth is 15MHz, the guard band can be 382.5, and so on.

[0053] With an SCS of 30kHz, if the channel bandwidth is 3MHz, the guard band can be N / A, meaning there is no guard band. If the channel bandwidth is 5MHz, the guard band can be 505. If the channel bandwidth is 10MHz, the guard band can be 665. If the channel bandwidth is 15MHz, the guard band can be 645, and so on.

[0054] With an SCS of 60kHz, if the channel bandwidth is 3MHz, the guard band can be N / A, meaning there is no guard band. If the channel bandwidth is 5MHz, the guard band can be N / A, meaning there is no guard band. If the channel bandwidth is 10MHz, the guard band can be 1010. If the channel bandwidth is 15MHz, the guard band can be 1330, and so on.

[0055] 3. Narrowband terminal

[0056] To support narrowband terminals, the 4th Generation (4G) Long Term Evolution (LTE) system designed a completely new Narrow Band Internet of Things (NB-IoT) system and a new broadcast signal for it. In Release 15 of the protocol, the minimum channel bandwidth defined by the NR system is 5MHz. In order to enable narrowband terminals (such as 3MHz terminals) to access the NR system, during the evolution of Release 18, the method of RB-level pruning of PBCH was determined. That is, the encoding of PBCH is still based on 20 RB resources for encoding and resource mapping, and the SSB structure remains unchanged, but the receiver only receives the PBCH and PSS / SSS within the middle 3MHz (12 RBs).

[0057] 4. Other terms

[0058] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, the first object can be one or more. Furthermore, "or" in this application indicates at least one of the connected objects. For example, the scope of protection for "A or B" covers at least three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. In addition, the terms "A and / or B," "at least one of A and B," and "at least one of A or B" also cover at least the above three scenarios. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0059] The term "instruction" in this application can be either a direct instruction (or explicit instruction) or an indirect instruction (or implicit instruction). A direct instruction can be understood as the sender explicitly informing the receiver of specific information, the required operation, or the requested result in the instruction sent. An indirect instruction can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the required operation or requested result based on the judgment result.

[0060] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), or other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0061] Figure 2This diagram illustrates a block diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can also be referred to as a user equipment (UE), and can be a mobile phone, tablet computer, laptop computer, notebook computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR), virtual reality (VR) device, robot, wearable device, flight vehicle, vehicle user equipment (VUE), shipboard equipment, pedestrian user equipment (PUE), smart home (home devices with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game console, personal computer (PC), ATM, or self-service machine, etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among these, in-vehicle devices can also be referred to as in-vehicle terminals, in-vehicle controllers, in-vehicle modules, in-vehicle components, in-vehicle chips, or in-vehicle units, etc. It should be noted that the specific type of terminal 11 is not limited in this application embodiment. Network-side equipment 12 may include access network equipment or core network equipment, wherein access network equipment may also be referred to as Radio Access Network (RAN) equipment, radio access network function, or radio access network unit. Access network equipment may include base stations, Wireless Local Area Network (WLAN) access points (APs), or Wireless Fidelity (Wi-Fi) nodes, etc.Among them, base stations can be referred to as Node B (NB), Evolved Node B (eNB), Next Generation Node B (gNB), New Radio Node B (NRNode B), Access Point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B, Transmit / Receive Point (TRP), and Non-Terrestrial Network (NTN) equipment (such as satellite or high altitude platform). The term "base station" can be any suitable term in the field, such as "station" or any other appropriate term in the relevant field, as long as the same technical effect is achieved. The term "base station" is not limited to specific technical terms. It should be noted that the embodiments of this application only use the base station in the NR system as an example for introduction, and do not limit the specific type of base station.

[0062] The following description, in conjunction with the accompanying drawings, details the broadcast channel transmission method, apparatus, terminal, network-side equipment, and medium provided in this application through some embodiments and application scenarios.

[0063] Currently, in 5G networks, network-side equipment can broadcast SSBs, which may include PSS, SSS, and PBCH. Terminals can receive these SSBs, synchronize their time based on the PSS and SSS, and perform random access based on the MIB carried on the PBCH to access the cell corresponding to the network-side equipment. However, there may be situations where the terminal cannot fully receive the information carried on the PBCH. For example, if the terminal is a narrowband terminal (meaning its receiving bandwidth may be small, e.g., 3MHz), and the network-side equipment still encodes and maps the MIB based on 20 resource blocks (RBs) of frequency domain resources, the terminal may only receive the PBCH and PSS / SSS within 3MHz (12 RBs). Specific resource details are shown in Table 3.

[0064] Table 3

[0065] Frequency domain resources PBCHRE PBCH payload 20RB 432 864 12RB 12*2*12*3 / 4＝216 The terminal can only receive a 432-bit payload.

[0066] In this process, the network-side equipment encodes and maps resources to the MIB based on 20 RBs. The number of PBCH resource elements (REs) is 432, and the number of PBCH payloads is 864. However, the terminal can only receive 12 of the 20 RBs. That is, the terminal receives 216 PBCH REs and 432 PBCH payloads. It can be understood that the terminal does not receive 432 PBCH payloads, which means that the PBCH payload loss rate reaches 50%. This may lead to poor demodulation performance of the information carried on the received PBCH by the terminal. Therefore, the terminal may be unable to determine the MIB, thus preventing the terminal from performing random access. This results in a low success rate for random access.

[0067] It should be noted that the above illustration is based on a narrowband terminal. Of course, there are other situations that may cause the terminal to be unable to fully receive the information carried on the PBCH, and this application embodiment does not limit these situations.

[0068] To address the aforementioned problems, this application provides a broadcast channel transmission method. Figure 3 A flowchart illustrating the broadcast channel transmission method provided in an embodiment of this application is shown. Figure 3 As shown, the broadcast channel transmission method provided in this application embodiment may include the following step 101.

[0069] Step 101: The first terminal receives a broadcast channel on at least one of the first resource set and the second resource set.

[0070] In some embodiments of this application, the first terminal may be a narrowband terminal or a non-narrowband terminal. The bandwidth supported by the narrowband terminal may include 1.4MHz or 3MHz. Of course, the narrowband terminal may also support other bandwidths, and this application does not limit this.

[0071] In this embodiment of the application, the first resource set and the second resource set overlap in the time domain but do not overlap in the frequency domain.

[0072] In some embodiments of this application, the aforementioned first resource set and second resource set for broadcast channel transmission can be understood as follows: both the first resource set and the second resource set are resource sets used for broadcast channel transmission. That is, the resources in the first resource set and the second resource set can be regarded as complete transmission resources for broadcast channel transmission. It is understood that the first terminal can receive the broadcast channel on one or more of the first resource set and the second resource set to determine the complete information of the system message carried by the broadcast channel.

[0073] In some embodiments of this application, any one of the first resource set and the second resource set may include at least one of the following: a time-domain resource set and a frequency-domain resource set, wherein any one of the resource sets may include at least one resource unit.

[0074] Where any resource set includes a time-domain resource set, at least one resource element in that resource set may include a time-domain resource element; where any resource set includes a time-domain resource set, that resource set may be an RB group, a partial bandwidth set, a subband set, etc., and at least one resource element in that resource set may include a frequency-domain resource element. The time-domain resource element may include at least one of the following: OFDM symbol, time slot, micro-time slot, subframe, frame, millisecond, etc. The frequency-domain resource element may include at least one of the following: subcarrier, RE, RB, partial bandwidth, subband, etc. Of course, the above-mentioned time-domain and frequency-domain resource elements may also include other resource elements, and this application embodiment does not limit this.

[0075] In some embodiments of this application, the first resource set and the second resource set described above may be obtained by grouping complete transmission resources (e.g., time-frequency domain resources) used for broadcast channel transmission.

[0076] In some embodiments of this application, the number of the first resource set can be at least one. The number of the second resource set can be at least one.

[0077] In some embodiments of this application, the bandwidth of the first resource set is less than or equal to a bandwidth threshold, and the first resource set includes at least one first resource unit that is continuous in the frequency domain.

[0078] The aforementioned second resource set includes at least one second resource unit.

[0079] In some examples, the aforementioned bandwidth threshold can be equal to the receiving bandwidth of the terminal with the minimum bandwidth in the system. This receiving bandwidth can be agreed upon by the protocol, pre-configured by the network-side device, or configured by the network-side device.

[0080] In some examples, the aforementioned first resource unit may include a time-domain resource unit and / or a frequency-domain resource unit.

[0081] In some examples, at least one of the above-mentioned first resource units satisfies at least one of the following:

[0082] At least one first resource element includes a third resource element, which is the resource element corresponding to the center carrier frequency of the SSB corresponding to the broadcast channel;

[0083] At least one first resource element and a fourth resource element have a first offset value in the frequency domain, and the fourth resource element includes at least one of the following: the starting resource element of the broadcast channel, the starting resource element of the SSB, and the resource element corresponding to the reference frequency point.

[0084] The first offset value mentioned above may include at least one frequency domain resource unit. The first offset value may be REoffset, or it may be other offset values, such as subcarrier offset, RB offset, or carrier offset, etc. This application embodiment does not limit this.

[0085] Thus, since the embodiments of this application specify the conditions that at least one first resource unit must meet, the first terminal can accurately determine at least one first resource unit based on these conditions, and therefore, the first terminal can accurately determine the first resource set.

[0086] In some examples, the first resource element and the fifth resource element mentioned above at least partially overlap in the frequency domain, wherein the fifth resource element is a resource element corresponding to at least one synchronization signal, which is a signal contained in the SSB corresponding to the broadcast channel.

[0087] The aforementioned at least one synchronization signal includes at least one of the following: a primary synchronization signal (PSS) and a secondary synchronization signal (SSS). Of course, the at least one synchronization signal may also include other signals, and this application embodiment does not limit this. The aforementioned fifth resource unit can be a resource unit occupied by at least one synchronization signal.

[0088] Thus, since the embodiments of this application specify the relative relationship between at least one first resource unit and a fifth resource unit in the frequency domain, the first terminal can accurately determine at least one first resource unit based on the relative relationship, thereby the first terminal can accurately determine the first resource set.

[0089] In some examples, at least one of the following conditions is satisfied between the first resource unit and the fifth resource unit:

[0090] At least one of the center frequencies of the first resource unit is the same as the center frequency of the fifth resource unit;

[0091] At least one center frequency of the first resource unit has a second offset value with the center frequency of the fifth resource unit, and the sum of the bandwidth of the first resource set and the second offset value is less than or equal to the bandwidth threshold.

[0092] The second offset value may include at least one frequency domain resource unit. The second offset value may be REoffset, or it may be other offset values. This application embodiment does not limit this.

[0093] In this embodiment, since a network-side device may simultaneously transmit at least one synchronization signal and a broadcast channel on a single time-domain resource unit, if the center frequency of at least one first resource unit and the center frequency of the fifth resource unit have a second offset value, and the sum of the second offset value and the bandwidth of at least one first resource unit (i.e., the bandwidth of the first resource set) exceeds a bandwidth threshold (which can be equal to the receiving bandwidth of the system's minimum bandwidth terminal), then the frequency domain spacing between at least one first resource unit and the fifth resource unit will be large, resulting in a significant portion of at least one synchronization signal and / or broadcast channel not being received by the system's minimum bandwidth terminal. Therefore, in this example, the sum of the second offset value and the bandwidth of the first resource set can be limited to be less than or equal to the bandwidth threshold, thus reducing the frequency domain spacing between the at least one first resource unit and the fifth resource unit, allowing a significant portion of at least one synchronization signal and / or broadcast channel to be received by the system's minimum bandwidth terminal.

[0094] Thus, since the embodiments of this application specify the relative relationship between at least one first resource unit and a fifth resource unit in the frequency domain, the first terminal can accurately determine at least one first resource unit based on the relative relationship, thereby the first terminal can accurately determine the first resource set.

[0095] In some examples, the first resource-related information of the aforementioned first resource unit satisfies at least one of the following:

[0096] The information related to the primary resource is stipulated in the agreement;

[0097] The first resource-related information is indicated by the first signal received by the first terminal.

[0098] In this embodiment of the application, the aforementioned first resource-related information includes at least one of the following: bandwidth, frequency domain location, and number.

[0099] The first signal mentioned above may include a synchronization signal in the SSB corresponding to the broadcast channel, and / or a reference signal sent by the network-side device, and / or a channel sent by other devices. The synchronization signal may include at least one of the following: PSS, SSS.

[0100] For example, when the first resource-related information is determined by the first signal, the first resource-related information can be determined based on the sequence and / or number of the first signal and / or the offset value of the first signal in the frequency domain. The offset value can be a RE offset, but it can also be other offset values, which are not limited in this embodiment.

[0101] For example, a correspondence between a sequence and / or number and / or offset value and related information (e.g., bandwidth and / or frequency domain position and / or number) can be predefined, so that a first resource-related information corresponding to the sequence and / or number and / or offset value of the first signal in the frequency domain can be determined based on the correspondence.

[0102] Thus, since the embodiments of this application specify the various conditions that the first resource-related information must meet, the first terminal can accurately determine the first resource-related information based on these conditions, thereby accurately determining the first resource set.

[0103] In some examples, the bandwidth of the second resource set may be the same as or different from that of the first resource set.

[0104] In some examples, the at least one second resource unit may include at least one of the following: a time-domain resource unit and a frequency-domain resource unit. The at least one second resource unit may be continuous in the frequency domain or discontinuous in the frequency domain, and each second resource unit may be continuous in the frequency domain or discontinuous in the frequency domain.

[0105] For example, suppose a first resource set includes a first resource unit, and a second resource set includes a second resource unit. The first and second resource sets partially overlap in the time domain but do not overlap in the frequency domain. Figure 4AAs shown, a first resource unit can be a resource unit 1 that is continuous in the frequency domain on the second OFDM symbol (i.e., 1#) and the fourth OFDM symbol (i.e., 3#). A second resource unit can include: a resource unit 2 that is discontinuous in the frequency domain on the second OFDM symbol (i.e., 1#), a resource unit 2 that is discontinuous in the frequency domain on the third OFDM symbol (i.e., 3#), and a resource unit 2 that is discontinuous in the frequency domain on the fourth OFDM symbol. It can be understood that on the second OFDM symbol (i.e., 1#), resource unit 1 is located between two discontinuous resource units 2, and on the fourth OFDM symbol (i.e., 3#), resource unit 1 is located between two discontinuous resource units 2.

[0106] To illustrate further, suppose a first resource set includes one first resource unit, and a second resource set includes two second resource units. The first and second resource sets partially overlap in the time domain but do not overlap in the frequency domain. Figure 4B As shown, the first resource unit can be a resource unit 1 that is continuous in the frequency domain on the second OFDM symbol (i.e., 1#) and the fourth OFDM symbol (i.e., 3#). The first second resource unit among the two second resource units can include: a resource unit 2 that is continuous in the frequency domain on the second OFDM symbol (i.e., 1#), a resource unit 2 that is continuous in the frequency domain on the third OFDM symbol (i.e., 2#), and a resource unit 2 that is continuous in the frequency domain on the fourth OFDM symbol (i.e., 3#). The second second resource unit among the two second resource units can include: a resource unit 3 that is continuous in the frequency domain on the second OFDM symbol (i.e., 1#), a resource unit 3 that is continuous in the frequency domain on the third OFDM symbol (i.e., 2#), and a resource unit 3 that is continuous in the frequency domain on the fourth OFDM symbol (i.e., 3#).

[0107] In some examples, the second resource-related information of the above-mentioned second resource unit satisfies at least one of the following:

[0108] The information related to the second resource is stipulated in the agreement;

[0109] The second resource-related information is indicated by the second signal received by the first terminal;

[0110] The second resource-related information is indicated by the information carried by the broadcast channel received on the first resource unit.

[0111] In this embodiment of the application, the above-mentioned second resource-related information includes at least one of the following: bandwidth, frequency domain location, and number.

[0112] The second signal may include a synchronization signal in the SSB corresponding to the broadcast channel, and / or a reference signal sent by the network-side device, and / or a channel sent by other devices. The synchronization signal may include at least one of the following: PSS, SSS.

[0113] For example, when the second resource-related information is determined by the first signal, the second resource-related information can be determined based on the sequence and / or number of the second signal and / or the offset value of the second signal in the frequency domain. This offset value can be a RE offset, but it can also be other offset values, which are not limited in this embodiment.

[0114] Wherein, if the second resource-related information satisfies the information indication carried by the broadcast channel received on the first resource unit, all information (i.e., bandwidth, frequency domain location, and number) or part of the information (i.e., at least one of bandwidth, frequency domain location, and number) of the second resource-related information can be indicated by the information carried by the broadcast channel received on the first resource unit.

[0115] For example, it can be agreed that the total frequency domain resources of the broadcast channel in the synchronization signal block (SSB) include X subcarriers, where X is a positive integer and is numbered from 1 to X. The first resource set includes a first resource unit, whose bandwidth occupies N subcarriers in the middle of the broadcast channel, numbered from Y to Y+N, where Y is a positive integer greater than X. If the information carried by the broadcast channel received on the first resource unit indicates that the second resource set includes two second resource units, then the first terminal can determine that the frequency domain resource position of the first second resource unit is the subcarrier numbered from 1 to Y-1, and the frequency domain resource position of the second second resource unit is the subcarrier numbered from Y+N+1 to X.

[0116] For example, it can be agreed that the total frequency domain resources of the broadcast channel in the synchronization signal block (SSB) include X subcarriers, where X is a positive integer and numbered from 1 to X. The first resource set includes one first resource unit, which occupies T subcarriers numbered from P to P+T-1, where P and T are both positive integers. Furthermore, the information carried by the broadcast channel received on the first resource unit indicates that the second resource set includes two second resource units. Then, the first terminal can determine that the frequency domain resource position of the first second resource unit is the subcarrier numbered from 1 to P-1, and the frequency domain resource position of the second second resource unit is the subcarrier numbered from T to X.

[0117] Thus, since the embodiments of this application specify the various conditions that the second resource-related information must meet, the first terminal can accurately determine the second resource-related information based on these conditions, thereby accurately determining the second resource set.

[0118] In summary, since the embodiments of this application specify the resource units included in the first resource set and the second resource set, as well as the conditions that the bandwidth occupied by the first resource set must meet, the first terminal can accurately determine the resource units included in the first resource set and the second resource set, as well as the bandwidth occupied by the first resource set, and receive the broadcast channel on the appropriate resource set according to the receiving bandwidth of the first terminal.

[0119] In some embodiments of this application, the first resource set and the second resource set described above satisfy at least one of the following:

[0120] Different resource sets correspond to different terminal types;

[0121] Different resource sets are associated with different reference signals;

[0122] Different resource sets are associated with different business types;

[0123] Different resource sets are associated with different network slices;

[0124] Different resource sets correspond to different application scenarios;

[0125] Different resource sets correspond to different receiving bandwidths.

[0126] In some examples, the terminal type mentioned above can be determined by at least one of the following: the bandwidth supported by the terminal, the complexity of the terminal, etc.

[0127] Wherein, when the terminal type is determined by the bandwidth supported by the terminal, the terminal type may include at least one of the following: narrowband terminal type (e.g., the first terminal type in the following embodiments) and non-narrowband terminal type (e.g., the second terminal type in the following embodiments). It is understood that the terminal of the narrowband terminal type supports a smaller bandwidth, and the terminal of the non-narrowband terminal type supports a larger bandwidth.

[0128] When the terminal type is determined by the terminal's complexity, the terminal type may include at least one of the following: a non-capability-reduced terminal and a capability-reduced terminal. It is understood that a non-capability-reduced terminal has higher complexity, while a capability-reduced terminal has lower complexity.

[0129] Of course, the above-mentioned terminal type can also be determined by other factors, and this application embodiment does not limit this.

[0130] In some examples, the different resource sets mentioned above corresponding to different terminal types may include at least one of the following: each resource set corresponds to a different terminal type, and different numbers of resource sets correspond to different terminal types.

[0131] For example, if each resource set corresponds to a terminal type, the first resource set can correspond to terminal type 1, and the second resource set can correspond to terminal type 2.

[0132] For example, when different numbers of resource sets correspond to different terminal types, the first resource set can correspond to terminal type 1, the first and second resource sets can correspond to terminal type 2, and the second resource set can correspond to terminal type 3.

[0133] In some examples, the aforementioned reference signal may include at least one of the following: a Channel State Information Reference Signal (CSI-RS) and a Channel Sounding Reference Signal (SRS). Of course, the reference signal may also include other signals, and this application embodiment does not limit this.

[0134] In some examples, associating different resource sets with different reference signals may include at least one of the following: each resource set is associated with a different reference signal, and different numbers of resource sets are associated with different reference signals.

[0135] In some examples, the aforementioned service type can be determined by at least one of the following: service latency requirements, service quality requirements, etc. Of course, the service type can also be determined by other factors, and this application embodiment does not limit this.

[0136] In some examples, associating different resource sets with different business types may include at least one of the following: each resource set is associated with a different business type, or different numbers of resource sets are associated with different business types.

[0137] In some examples, associating different resource sets with different network slices may include at least one of the following: each resource set is associated with a network slice, or different numbers of resource sets are associated with a network slice.

[0138] In some examples, the different resource sets mentioned above corresponding to different application scenarios may include at least one of the following: each resource set corresponds to one application scenario, and different numbers of resource sets correspond to one application scenario.

[0139] In some examples, the different resource sets mentioned above corresponding to different receiving bandwidths may include at least one of the following: each resource set corresponds to a receiving bandwidth, and different numbers of resource sets correspond to a receiving bandwidth.

[0140] In some embodiments of this application, the first resource set and the second resource set described above satisfy at least one of the following:

[0141] The first and second resource sets are agreed upon by the agreement;

[0142] The first resource set and the second resource set are determined by at least one synchronization signal contained in the SSB corresponding to the broadcast channel;

[0143] The first resource set and the second resource set are indicated by the second signaling received by the first terminal;

[0144] The first and second resource sets are determined by the positions of the SSB's synchronization grids;

[0145] The first and second resource sets are determined by the type of the SSB's synchronization grid;

[0146] The first and second resource sets are determined by the assumed transmission period of the SSB;

[0147] The first and second resource sets are determined by the transmission period of the SSB;

[0148] The first and second resource sets are determined by the transmission timing of the SSB;

[0149] The first and second resource sets are determined by the index corresponding to the SSB;

[0150] The first and second resource sets are determined by the index group corresponding to the SSB;

[0151] The first and second resource sets are determined by the DMRS corresponding to the SSB;

[0152] The first and second resource sets are determined by the bandwidth type corresponding to the broadcast channel;

[0153] The first and second resource sets are determined by the frequency range corresponding to the broadcast channel;

[0154] The first resource set and the second resource set are indicated by the WUS received by the first terminal;

[0155] The first resource set and the second resource set are indicated to the network-side device by the WUS request sent by the first terminal;

[0156] The first resource set and the second resource set are indicated by the second reference signal received by the first terminal;

[0157] The first resource set and the second resource set are indicated by the broadcast message received by the first terminal;

[0158] The first resource set and the second resource set are indicated by the paging message received by the first terminal.

[0159] In some examples, the SSB mentioned above can be replaced by a synchronization signal or a synchronization signal / broadcast channel, or any module that includes at least one of a synchronization signal, a broadcast signal, a broadcast channel, a downlink broadcast channel for other system messages, or a control channel thereof.

[0160] In some examples, the broadcast channel described above can be the Physical Broadcast Channel (PBCH). Of course, the broadcast channel can also be other channels, and this application does not limit this.

[0161] In some examples, the at least one synchronization signal mentioned above may include at least one of the following: PSS, SSS. Of course, the at least one synchronization signal may also include other signals, and this application embodiment does not limit this.

[0162] In some examples, where the first resource set and the second resource set are determined by at least one synchronization signal contained in the SSB corresponding to the broadcast channel, the first resource set and the second resource set can be determined based on the sequence of the at least one synchronization signal. For example, a correspondence between sequences and resource sets can be predefined, so that the resource set corresponding to the at least one synchronization signal can be determined as the first resource set and the second resource set based on this correspondence. Of course, the first resource set and the second resource set can also be determined based on at least one synchronization signal in other ways, and the embodiments of this application do not limit this.

[0163] In some examples, the second signaling may include at least one of the following: Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, and physical layer signaling. Of course, the second signaling may also include other signaling, and this application embodiment does not limit this.

[0164] In some examples, the aforementioned second signaling can be transmitted as at least one of the following: other cell, other TRP, other carrier, other band, or other subband. Wherein, the other cell can be understood as a cell different from the serving cell of the first terminal, the other TRP can be understood as a TRP different from the TRP corresponding to the network-side device, the other carrier can be understood as a carrier different from the carrier corresponding to the network-side device, the other band can be understood as a band different from the band corresponding to the network-side device, and the other subband can be understood as a subband different from the subband corresponding to the network-side device.

[0165] In some examples, when the first resource set and the second resource set satisfy the condition indicated by the second signaling, the second signaling can indicate the first resource set and the second resource set explicitly or implicitly, thereby determining the first resource set and the second resource set based on the indication of the second signaling. Of course, the first resource set and the second resource set can also be determined based on the second signaling in other ways, and the embodiments of this application do not limit this.

[0166] In some examples, where the first resource set and the second resource set satisfy the condition determined by the position of the SSB's synchronization grid, a predefined correspondence between position and resource set can be established. Based on this correspondence, the resource set corresponding to the position of the SSB's synchronization grid can be determined as the first resource set and the second resource set. Of course, the first resource set and the second resource set can also be determined based on the position of the SSB's synchronization grid in other ways, and this application does not limit this approach.

[0167] In some examples, where the first resource set and the second resource set satisfy the condition determined by the type of the SSB's synchronization grid, a predefined correspondence between type and resource set can be established. Based on this correspondence, the resource set corresponding to the type of the SSB's synchronization grid can be determined as the first resource set and the second resource set. Of course, the first resource set and the second resource set can also be determined based on the type of the SSB's synchronization grid in other ways, and this application does not limit this approach.

[0168] In some examples, where the first resource set and the second resource set satisfy the condition determined by the assumed SSB transmission period (or SSB transmission time, or SSB transmission timing), a predefined correspondence between the period (or timing) and the resource sets can be used to determine the first resource set and the second resource set based on this correspondence. Alternatively, the resource set located within the assumed SSB transmission period (or SSB transmission time, or SSB transmission timing) can be determined as the first resource set and the second resource set. Of course, the first resource set and the second resource set can also be determined based on the assumed SSB transmission period (or SSB transmission time, or SSB transmission timing) in other ways, and this application embodiment does not limit this.

[0169] In some examples, where the first resource set and the second resource set are determined by the index (or index group) corresponding to the SSB, a predefined correspondence between the index (or index group) and the resource set can be used. Based on this correspondence, the resource set corresponding to the index (or index group) corresponding to the SSB can be determined as the first resource set and the second resource set. Of course, the first resource set and the second resource set can also be determined based on the index (or index group) corresponding to the SSB in other ways, and this application does not limit this approach.

[0170] In some examples, when the first resource set and the second resource set satisfy the DMRS corresponding to the SSB, the sequence of the DMRS (which is related to the sequence initialization factor) can be detected to determine the first resource set and the second resource set. Of course, the first resource set and the second resource set can also be determined based on the DMRS corresponding to the SSB in other ways, and this application embodiment does not limit this.

[0171] In some examples, the bandwidth type mentioned above may include any of the following: Terrestrial Network (TN) band type and Non-Terrestrial Network (NTN) band type. The TN band type and NTN band type correspond to different resource sets, respectively. Therefore, when the first resource set and the second resource set satisfy the condition determined by the bandwidth type corresponding to the broadcast channel, a predefined correspondence between bandwidth types and resource sets can be established. Based on this correspondence, the resource set corresponding to the bandwidth type of the broadcast channel can be determined as the first resource set and the second resource set. Of course, the first resource set and the second resource set can also be determined based on the bandwidth type corresponding to the broadcast channel in other ways, and this application embodiment does not limit this approach.

[0172] In some examples, where the first resource set and the second resource set are determined by the frequency range corresponding to the broadcast channel, a predefined correspondence between the range and the resource set can be used to determine the first resource set and the second resource set based on this correspondence. Alternatively, the resource set located within the frequency range corresponding to the broadcast channel can be determined as the first resource set and the second resource set. Of course, other methods can also be used to determine the first resource set and the second resource set based on the frequency range corresponding to the broadcast channel, and this application does not limit this approach.

[0173] In some examples, the aforementioned WUS can be sent from a network-side device (or other network-side device, or other terminal) to a first terminal.

[0174] The WUS can explicitly or implicitly indicate the first resource set and the second resource set, so that if the first resource set and the second resource set satisfy the indication of the WUS, the first resource set and the second resource set can be determined according to the indication of the WUS.

[0175] In some examples, the WUS request can be used to request the transmission of an SSB. The WUS request includes the configuration of a first resource set and a second resource set, so that the network-side device can send the corresponding SSB according to the WUS request. Alternatively, the resource set associated with the WUS request (e.g., the transport type associated with the protocol or the network-side device configuration) can be determined as the first resource set and the second resource set.

[0176] In some examples, the second reference signal may include at least one of the following: CSI-RS, SRS. Of course, the second reference signal may also include other signals, and this application embodiment does not limit this.

[0177] In some examples, the broadcast message may include a System Information Block (SIB), such as SIB1. Of course, the broadcast message may also include other messages, and this application embodiment does not limit this.

[0178] In some examples, the aforementioned second reference signal (or broadcast message or paging message) may explicitly or implicitly indicate the first resource set and the second resource set, so that if the first resource set and the second resource set satisfy the indication of the second reference signal (or broadcast message or paging message), the first resource set and the second resource set can be determined according to the indication of the second reference signal (or broadcast message or paging message).

[0179] Thus, since the embodiments of this application specify the conditions that the first resource set and the second resource set must meet, the first terminal can accurately determine the first resource set and the second resource set according to these conditions. In subsequent steps, the first terminal can receive the broadcast channel on the appropriate resource set, thereby reducing the probability that the first terminal cannot completely receive the information carried on the broadcast channel.

[0180] In some embodiments of this application, the first resource set and the second resource set may completely overlap or partially overlap in the time domain.

[0181] In some embodiments of this application, the above-mentioned at least one resource set may include any one of the following: a first resource set, a second resource set, or a first resource set and a second resource set.

[0182] In some embodiments of this application, the first terminal can accurately determine at least one resource set from the first resource set and the second resource set based on the terminal type of the first terminal and / or the received reference signal and / or the service type of the service being performed and / or the network slice accessed and / or the application scenario and / or the receiving bandwidth.

[0183] In some embodiments of this application, when the terminal type of the first terminal is a first terminal type, the above-mentioned at least one resource set is a first resource set, and the bandwidth of the first resource set is less than or equal to a bandwidth threshold; when the terminal type of the first terminal is a second terminal type, the above-mentioned at least one resource set includes a first resource set and a second resource set.

[0184] In this embodiment of the application, the bandwidth supported by the terminal of the first terminal type is less than or equal to the bandwidth threshold, and the bandwidth supported by the terminal of the second terminal type is greater than the bandwidth threshold.

[0185] It is understood that the first terminal type mentioned above can be a narrowband terminal type, and the second terminal type mentioned above can be a non-narrowband terminal type.

[0186] Therefore, when the first terminal is of the first terminal type, the aforementioned at least one resource set can be a first resource set with bandwidth less than or equal to the bandwidth threshold, i.e., a resource set with smaller bandwidth. This allows the first terminal to receive more payload information or complete payload information from the broadcast channel on the resource set with smaller bandwidth, thus improving the first terminal's reception performance of the broadcast channel. Alternatively, when the first terminal is of the second terminal type, the aforementioned at least one resource set can include both a first resource set and a second resource set with bandwidth less than or equal to the bandwidth threshold, i.e., a resource set with larger bandwidth. It can be understood that the broadcast channel payload transmitted on the resource set with larger bandwidth is larger, allowing the first terminal to receive more payload information or complete payload information from the broadcast channel, thus improving the first terminal's reception performance of the broadcast channel.

[0187] In some embodiments of this application, the transmission type of the broadcast channel described above satisfies at least one of the following:

[0188] The transmission type of the broadcast channel is defined by the protocol;

[0189] The transmission type of a broadcast channel is determined by at least one synchronization signal contained in the SSB corresponding to the broadcast channel;

[0190] The transmission type of the broadcast channel is indicated by the first signaling received by the first terminal;

[0191] The transmission type of the broadcast channel is determined by the position of the synchronization grid of the SSB;

[0192] The transmission type of the broadcast channel is determined by the type of the synchronization grid of the SSB;

[0193] The transmission type of the broadcast channel is determined by the assumed transmission period of the SSB;

[0194] The transmission type of the broadcast channel is determined by the transmission period of the SSB;

[0195] The transmission type of the broadcast channel is determined by the transmission timing of the SSB;

[0196] The transmission type of the broadcast channel is determined by the index corresponding to the SSB;

[0197] The transmission type of the broadcast channel is determined by the index group corresponding to the SSB;

[0198] The transmission type of the broadcast channel is determined by the DMRS corresponding to the SSB;

[0199] The transmission type of a broadcast channel is determined by the bandwidth type corresponding to the broadcast channel;

[0200] The transmission type of a broadcast channel is determined by the frequency range corresponding to the broadcast channel;

[0201] The transmission type of the broadcast channel is indicated by the WUS received by the first terminal;

[0202] The transmission type of the broadcast channel is indicated to the network-side device by the WUS request sent by the first terminal;

[0203] The transmission type of the broadcast channel is indicated by the first reference signal received by the first terminal;

[0204] The transmission type of the broadcast channel is indicated by the broadcast message received by the first terminal;

[0205] The transmission type of the broadcast channel is indicated by the paging message received by the first terminal.

[0206] In some examples, the transmission type of the aforementioned broadcast channel may include at least one of the following: multi-subband transmission, independent bandwidth transmission, transmission in a specific format, transmission for different terminal types, transmission corresponding to different receiving bandwidths, etc. Of course, the transmission type may also include other types, which are not limited in this embodiment.

[0207] In some examples, where the transmission type of a broadcast channel is determined by at least one synchronization signal contained in the SSB corresponding to the broadcast channel, the transmission type of the broadcast channel can be determined based on the sequence of the at least one synchronization signal. For example, a correspondence between sequence and type can be predefined, so that the type corresponding to the at least one synchronization signal can be determined as the transmission type of the broadcast channel based on this correspondence. Of course, the transmission type of the broadcast channel can also be determined based on at least one synchronization signal in other ways, and this application embodiment does not limit this.

[0208] In some examples, the aforementioned first signaling can be transmitted as at least one of the following: other cell, other TRP, other carrier, other band, or other subband. Wherein, the other cell can be understood as a cell different from the serving cell of the first terminal, the other TRP can be understood as a TRP different from the TRP corresponding to the network-side device, the other carrier can be understood as a carrier different from the carrier corresponding to the network-side device, the other band can be understood as a band different from the band corresponding to the network-side device, and the other subband can be understood as a subband different from the subband corresponding to the network-side device.

[0209] In some examples, when the transmission type of the broadcast channel satisfies the indication of the first signaling, the first signaling can indicate the transmission type of the broadcast channel explicitly or implicitly, thereby determining the transmission type of the broadcast channel based on the indication of the first signaling. Of course, the transmission type of the broadcast channel can also be determined based on the first signaling in other ways, and the embodiments of this application do not limit this.

[0210] In some examples, where the transmission type of the broadcast channel is determined by the position of the synchronization grid of the SSB, a predefined correspondence between position and type can be established. This correspondence allows the type corresponding to the position of the SSB's synchronization grid to be determined as the transmission type of the broadcast channel. Of course, other methods can also be used to determine the transmission type of the broadcast channel based on the position of the SSB's synchronization grid; this application does not limit this approach.

[0211] In some examples, when the transmission type of the broadcast channel is determined by the type of the synchronization grid of the SSB, a predefined correspondence between grid types and transmission types can be established. Based on this correspondence, the transmission type corresponding to the type of the SSB's synchronization grid can be determined as the transmission type of the broadcast channel. Of course, the transmission type of the broadcast channel can also be determined based on the type of the SSB's synchronization grid in other ways, and this application does not limit this approach.

[0212] In some examples, when the transmission type of the broadcast channel satisfies the assumption of the SSB transmission period (or SSB transmission time, or SSB transmission timing), a predefined correspondence between the period (or timing) and the type can be used to determine the type corresponding to the assumption of the SSB transmission period (or SSB transmission time, or SSB transmission timing) as the transmission type of the broadcast channel. Of course, the transmission type of the broadcast channel can also be determined based on the assumption of the SSB transmission period (or SSB transmission time, or SSB transmission timing) in other ways, and this application does not limit this approach.

[0213] In some examples, when the transmission type of the broadcast channel is determined by the index (or group of indexes corresponding to the SSB), a predefined correspondence between the index (or group of indexes) and the type can be used. This correspondence allows the type corresponding to the index (or group of indexes corresponding to the SSB) to be determined as the transmission type of the broadcast channel. Of course, other methods can also be used to determine the transmission type of the broadcast channel based on the index (or group of indexes corresponding to the SSB), and this application does not limit this approach.

[0214] In some examples, when the transmission type of the broadcast channel satisfies the DMRS corresponding to the SSB, the sequence of the DMRS (which is related to the sequence initialization factor) can be detected to determine the transmission type of the broadcast channel. Of course, the transmission type of the broadcast channel can also be determined based on the DMRS corresponding to the SSB in other ways, and this application embodiment does not limit this.

[0215] In some examples, where the transmission type of the broadcast channel is determined by the bandwidth type corresponding to the broadcast channel, a predefined correspondence between bandwidth type and transmission type can be established. Based on this correspondence, the transmission type corresponding to the bandwidth type of the broadcast channel can be determined as the transmission type of the broadcast channel. Of course, the transmission type of the broadcast channel can also be determined based on the bandwidth type corresponding to the broadcast channel in other ways, and this application does not limit this approach.

[0216] In some examples, where the transmission type of a broadcast channel is determined by the frequency range corresponding to the broadcast channel, a predefined correspondence between range and type can be established. This correspondence allows the type corresponding to the frequency range of the broadcast channel to be determined as the transmission type of the broadcast channel. Of course, other methods can also be used to determine the transmission type of the broadcast channel based on the frequency range corresponding to the broadcast channel; this application does not limit this approach.

[0217] In some examples, the aforementioned WUS can be sent from a network-side device (or other network-side device, or other terminal) to a first terminal.

[0218] The WUS can explicitly or implicitly indicate the transmission type of the broadcast channel, so that if the transmission type of the broadcast channel satisfies the indication of the WUS, the transmission type of the broadcast channel can be determined according to the indication of the WUS.

[0219] In some examples, the WUS request can be used to request the transmission of an SSB. The WUS request contains the desired SSB transmission type, so that the network-side device can send the corresponding SSB according to the WUS request. Alternatively, the transmission type associated with the WUS request (e.g., a transmission type associated with a protocol or a network-side device configuration) can be determined as the transmission type of the broadcast channel.

[0220] In some examples, the first reference signal may include at least one of the following: CSI-RS, SRS. Of course, the first reference signal may also include other signals, and this application embodiment does not limit this.

[0221] In some examples, the aforementioned first reference signal (or broadcast message or paging message) may explicitly or implicitly indicate the transmission type of the broadcast channel, so that if the transmission type of the broadcast channel satisfies the indication of the first reference signal (or broadcast message or paging message), the transmission type of the broadcast channel can be determined based on the indication of the first reference signal (or broadcast message or paging message).

[0222] Thus, since the embodiments of this application specify the various conditions that the transmission type of the broadcast channel must meet, the first terminal can accurately determine the transmission type of the broadcast channel according to these conditions. Therefore, in subsequent steps, the first terminal can accurately receive the broadcast channel, thereby reducing the probability that the first terminal cannot accurately receive the broadcast channel and improving the success rate of the first terminal performing random access.

[0223] This application provides a broadcast channel transmission method, in which a first terminal can receive a broadcast channel on at least one of a first resource set and a second resource set, the first resource set and the second resource set being used for the transmission of the broadcast channel; wherein the first resource set and the second resource set overlap in the time domain but do not overlap in the frequency domain. Since the first terminal can receive the broadcast channel on at least one of the first and second resource sets, instead of receiving it on both sets, it can receive the broadcast channel on a single resource set with limited bandwidth, rather than on the entire transmission resource of the broadcast channel. This reduces the probability of the first terminal failing to receive the complete information carried on the broadcast channel, thus improving its demodulation performance and reducing the likelihood of the terminal being unable to determine the information on the broadcast channel, thereby preventing the terminal from being unable to perform random access. Alternatively, the first terminal can receive the broadcast channel on both the first and second resource sets with greater bandwidth, meaning it can receive it on the entire transmission resource of the broadcast channel. This avoids reducing the amount of information received from the broadcast channel, ensuring its demodulation performance and further reducing the likelihood of the terminal being unable to determine the information on the broadcast channel, thus preventing the terminal from being unable to perform random access. Therefore, the success rate of random access can be improved.

[0224] In some embodiments of this application, combined with Figure 3 ,like Figure 5 As shown, the broadcast channel transmission method provided in this application embodiment may further include the following step 102.

[0225] Step 102: The first terminal determines the mapping method corresponding to the system message.

[0226] It should be noted that the execution order of steps 101 and 102 is not limited in this embodiment. Figure 5 The example in the text illustrates this by having the first terminal execute step 101 first, followed by step 102.

[0227] In this embodiment of the application, the mapping method corresponding to the above system messages includes any one of the following:

[0228] The encoded bit stream corresponding to at least a portion of the information in the system message is repeated at least once, and the bandwidth of at least one resource unit in the at least one resource set is used to perform rate matching on at least one first bit stream obtained by repetition, and each second bit stream obtained by rate matching is mapped onto the corresponding resource unit.

[0229] Based on the bandwidth of each resource unit in at least one resource set, rate matching is performed on the encoded bit stream corresponding to at least a portion of the information of the system message, and the third bit stream obtained by rate matching is repeated at least once, and each of the repeated third bit streams is mapped onto the corresponding resource unit.

[0230] Based on the bandwidth of the first and second resource sets, rate matching is performed on the encoded bit stream corresponding to the complete information of the system message, and the fourth bit stream obtained by rate matching is mapped onto the resource units in the first and second resource sets.

[0231] In some examples, the above-mentioned process of repeating the encoded bitstream corresponding to at least a portion of the information of the system message at least once, and performing rate matching on at least one first bitstream obtained by the repetition based on the bandwidth of at least one resource unit in at least one resource set, and mapping each second bitstream obtained by rate matching onto the corresponding resource unit, can be understood as: during rate matching, the output is directly repeated, similar to the output method of Tail-Biting Convolutional Codes (TBCC) or repetition codes.

[0232] In some examples, the above-mentioned process of performing at least one repetition operation on the encoded bitstream corresponding to at least a portion of the information of the system message, and performing rate matching on at least one first bitstream obtained by the repetition based on the bandwidth of at least one resource unit in at least one resource set, and mapping each second bitstream obtained by rate matching onto the corresponding resource unit, can be understood as follows: when mapping the system message to the at least one resource set, the encoded bitstream corresponding to the information of the system message corresponding to the at least one resource set can be obtained first, and the encoded bitstream can be performed at least one repetition operation. The number of repetition operations is the same as the number of resource units included in the at least one resource set. The at least one first bitstream obtained by the repetition operation corresponds one-to-one with the at least one resource set. It can be understood that each resource set is used to transmit the corresponding first bitstream, thereby performing rate matching on each of the repetitioned first bitstreams according to the bandwidth of a corresponding resource unit in the at least one resource set to obtain at least one second bitstream. The at least one second bitstream corresponds one-to-one with the at least one resource set, and then each second bitstream can be mapped onto the corresponding resource unit.

[0233] In some examples, the above-mentioned rate matching of the encoded bitstream corresponding to at least a portion of the information of the system message based on the bandwidth of each resource unit in at least one resource set, and the rate matching of the third bitstream is repeated at least once, and each repeated third bitstream is mapped onto the corresponding resource unit, can be understood as: first, normal rate matching is output, but the bitstream is repeated at least once before mapping.

[0234] In some examples, the above-mentioned rate matching of the encoded bitstream corresponding to at least a portion of the information of the system message based on the bandwidth of each resource unit in at least one resource set, and the rate matching of the third bitstream obtained by rate matching at least once, and the mapping of each of the repeated third bitstreams to the corresponding resource unit, can be understood as follows: when mapping the system message to the above-mentioned at least one resource set, the encoded bitstream corresponding to the information of the system message corresponding to the at least one resource set can be obtained first, and the encoded bitstream can be rate matched according to the bandwidth of one resource unit in the at least one resource set to obtain the third bitstream. The third bitstream can be repeated at least once, and the number of repetitions is the same as the number of resource units included in the at least one resource set. At least one third bitstream and at least one resource set correspond one-to-one. It can be understood that each resource set is used to transmit the corresponding third bitstream, so that each third bitstream can be mapped to the corresponding resource unit.

[0235] In some examples, the above repetition operation can be performed in any of the following ways: bit-interleaved repetition or block-interleaved repetition.

[0236] For example, suppose the repetition operation is a bit-interleaved repetition method, and the bit-interleaved sequence of this bit-interleaved repetition method is {2,3,1,4,5}. Suppose the above third bit stream is a0, a1, a2, a3, a4. Then, when the third bit stream is repeated, the bit stream after one repetition operation is a1, a2, a0, a3, a4. Thus, at least one third bit stream (i.e., a combination of the third bit stream and the bit stream after one repetition operation) is a0, a1, a2, a3, a4, a1, a2, a0, a3, a4.

[0237] As can be seen from the embodiments of this application, the method of repeated operation is specified. Therefore, the first terminal can accurately determine the method of repeated operation performed by the network-side device and accurately determine the mapping method corresponding to the system message. Thus, in subsequent steps, the first terminal can accurately determine the system message.

[0238] In some examples, when the duplicate resource sizes, modulation orders, and code rates in the first and second resource sets are consistent, the above bit interleaving sequence can be a two-dimensional time-frequency matrix. That is, the mapping of data to time-frequency resources is in the order of frequency domain first and then time domain. If the time domain symbol is taken as the horizontal axis and the frequency domain subcarrier is taken as the vertical axis, then each resource unit can be represented by a point (l,k) in the coordinate system, where l represents the symbol where the RE is located and k represents the subcarrier where the RE is located. Therefore, the interleaving sequence can also be a mapping relationship between REs, that is, a two-dimensional time-frequency matrix.

[0239] In some examples, the above-mentioned rate matching of the encoded bitstream corresponding to the complete information of the system message based on the bandwidth of the first resource set and the second resource set, and mapping the rate-matched fourth bitstream onto the resource units in the first resource set and the second resource set, can be understood as: rate matching of the data carried by the broadcast channel according to the bandwidth of the entire SSB, and mapping the output bitstream onto the complete transmission resources of the broadcast channel.

[0240] Thus, since the embodiments of this application specify various possible mapping methods for system messages, the first terminal can accurately determine the mapping method corresponding to the system message based on these various methods, thereby enabling the first terminal to accurately determine the system message in subsequent steps.

[0241] In some embodiments of this application, the mapping method corresponding to the above system messages satisfies at least one of the following:

[0242] The mapping method for system messages is agreed upon by the protocol;

[0243] The mapping method corresponding to the system message is determined by at least one synchronization signal contained in the SSB corresponding to the broadcast channel;

[0244] The mapping method corresponding to the system message is indicated by the fourth signaling received by the first terminal;

[0245] The mapping method corresponding to system messages is determined by the position of the SSB's synchronization grid;

[0246] The mapping method corresponding to system messages is determined by the type of the SSB's synchronization grid;

[0247] The mapping method corresponding to system messages is determined by the assumed transmission period of the SSB;

[0248] The mapping method corresponding to system messages is determined by the transmission cycle of the SSB;

[0249] The mapping method corresponding to system messages is determined by the transmission timing of the SSB;

[0250] The mapping method for system messages is determined by the index corresponding to the SSB;

[0251] The mapping method corresponding to the system message is determined by the index group corresponding to the SSB;

[0252] The mapping method corresponding to the system message is determined by the DMRS corresponding to the SSB;

[0253] The mapping method for system messages is determined by the bandwidth type of the broadcast channel;

[0254] The mapping method for system messages is determined by the frequency range corresponding to the broadcast channel;

[0255] The mapping method corresponding to the system message is indicated by the WUS received by the first terminal;

[0256] The mapping method corresponding to the system message is indicated to the network-side device by the WUS request sent by the first terminal.

[0257] In some examples, where the mapping method corresponding to a system message is determined by at least one synchronization signal contained in the SSB corresponding to the broadcast channel, the mapping method corresponding to the system message can be determined based on the sequence of the at least one synchronization signal. For example, a correspondence between sequences and methods can be predefined, so that the method corresponding to the at least one synchronization signal can be determined as the mapping method corresponding to the system message based on this correspondence. Of course, the mapping method corresponding to the system message can also be determined based on at least one synchronization signal in other ways, and this application embodiment does not limit this.

[0258] In some examples, the aforementioned fourth signaling can be transmitted as at least one of the following: other cell, other TRP, other carrier, other band, or other subband. Wherein, the other cell can be understood as a cell different from the serving cell of the first terminal, the other TRP can be understood as a TRP different from the TRP corresponding to the network-side device, the other carrier can be understood as a carrier different from the carrier corresponding to the network-side device, the other band can be understood as a band different from the band corresponding to the network-side device, and the other subband can be understood as a subband different from the subband corresponding to the network-side device.

[0259] In some examples, when the mapping method corresponding to a system message satisfies the indication of a fourth signaling, the fourth signaling can explicitly or implicitly indicate the mapping method corresponding to the system message, thereby determining the mapping method corresponding to the system message based on the indication of the fourth signaling. Of course, the mapping method corresponding to a system message can also be determined based on the fourth signaling in other ways, and this application embodiment does not limit this.

[0260] In some examples, where the mapping mode corresponding to the system message is determined by the position of the SSB's synchronization grid, a predefined correspondence between position and mode can be used. This correspondence allows the mode corresponding to the SSB's synchronization grid position to be determined as the mapping mode for the system message. Of course, other methods can also be used to determine the mapping mode of the system message based on the position of the SSB's synchronization grid; this application does not limit this approach.

[0261] In some examples, where the mapping method corresponding to the system message is determined by the type of the SSB's synchronization grid, a predefined correspondence between grid type and method can be established. This allows the mapping method corresponding to the SSB's synchronization grid type to be determined as the mapping method corresponding to the system message based on this correspondence. Of course, other methods can also be used to determine the mapping method corresponding to the system message based on the SSB's synchronization grid type; this application does not limit this approach.

[0262] In some examples, when the mapping method corresponding to the system message satisfies the condition determined by the assumed SSB transmission period (or SSB transmission time, or SSB transmission timing), a predefined correspondence between the period (or timing) and the method can be used. Based on this correspondence, the method corresponding to the assumed SSB transmission period (or SSB transmission time, or SSB transmission timing) can be determined as the mapping method corresponding to the system message. Of course, other methods can also be used to determine the mapping method corresponding to the system message based on the assumed SSB transmission period (or SSB transmission time, or SSB transmission timing), and this application does not limit this approach.

[0263] In some examples, when the mapping method corresponding to a system message is determined by the index (or group of indexes corresponding to an SSB), a predefined correspondence between the index (or group of indexes) and the method can be used. Based on this correspondence, the method corresponding to the index (or group of indexes corresponding to an SSB) can be determined as the mapping method for the system message. Of course, other methods can also be used to determine the mapping method for the system message based on the index (or group of indexes corresponding to an SSB), and this application does not limit this approach.

[0264] In some examples, if the mapping method corresponding to the system message satisfies the DMRS corresponding to the SSB, the sequence of the DMRS (which is related to the sequence initialization factor) can be detected to determine the mapping method corresponding to the system message. Of course, the mapping method corresponding to the system message can also be determined based on the DMRS corresponding to the SSB in other ways, and this application embodiment does not limit this.

[0265] In some examples, where the mapping method corresponding to the system message is determined by the bandwidth type corresponding to the broadcast channel, a predefined correspondence between bandwidth type and method can be established. Based on this correspondence, the method corresponding to the bandwidth type of the broadcast channel can be determined as the mapping method corresponding to the system message. Of course, other methods can also be used to determine the mapping method corresponding to the system message based on the bandwidth type of the broadcast channel, and this application embodiment does not limit this.

[0266] In some examples, where the mapping method corresponding to the system message is determined by the frequency range corresponding to the broadcast channel, a predefined correspondence between the range and the method can be used. This correspondence allows the method corresponding to the frequency range of the broadcast channel to be determined as the mapping method for the system message. Of course, other methods can also be used to determine the mapping method for the system message based on the frequency range of the broadcast channel; this application does not limit this approach.

[0267] In some examples, the aforementioned WUS can be sent from a network-side device (or other network-side device, or other terminal) to a first terminal.

[0268] The WUS can explicitly or implicitly indicate the mapping method corresponding to the system message. Thus, if the mapping method corresponding to the system message satisfies the indication of the WUS, the mapping method corresponding to the system message can be determined according to the indication of the WUS.

[0269] In some examples, the WUS request contains the expected system message mapping method, so that the network-side device can send the corresponding SSB according to the WUS request. Alternatively, the mapping method associated with the WUS request (such as the mapping method associated by protocol or the mapping method associated by network-side device configuration) can be determined as the mapping method corresponding to the system message.

[0270] Thus, since the embodiments of this application specify the various conditions that the mapping method corresponding to the system message must meet, the first terminal can accurately determine the mapping method corresponding to the system message based on these conditions, thereby enabling the first terminal to accurately determine the system message in subsequent steps.

[0271] In some embodiments of this application, the broadcast channel transmission method provided in this application may further include the following steps 102, 103, or 104.

[0272] Step 102: The first terminal determines the system message based on the information carried by the broadcast channel received on any resource unit in at least one resource set.

[0273] It is understood that, in this example, all the data carried by the broadcast channel is mapped onto each resource unit (e.g., the first resource unit and / or the second resource unit), meaning that the information transmitted by each resource unit (e.g., the first resource unit and / or the second resource unit) is the same.

[0274] In some examples, the modulation order of the information carried by the broadcast channel on each resource unit (e.g., the first resource unit and / or the second resource unit) may be the same or different, and the code rate may be the same or different.

[0275] In some examples, when the terminal type of the first terminal is either a first terminal type or a second terminal type, the first terminal can determine the system message based on the information carried by the broadcast channel received on any resource unit in at least one resource set.

[0276] It is understandable that any terminal type can determine system messages based on information carried by the broadcast channel received on any resource unit in at least one resource set.

[0277] Optionally, if the first terminal is of the first terminal type, the first terminal can decode the information carried by the broadcast channel received on the first resource unit (e.g., all or some of the first resource units) in the first resource set and merge the decoded information (e.g., soft value information) to obtain the complete information of the system message. It is understood that since the information carried by the broadcast channel received on each first resource unit in the first resource set is the same, decoding performance can be improved by merging the received information.

[0278] Optionally, if the terminal type of the first terminal is the second terminal type, the first terminal can decode the information carried by the broadcast channel received on the resource units (e.g., all resource units or some resource units) in the first resource set and the second resource set, and merge the decoded information (e.g., soft value information) to obtain the complete information of the system message.

[0279] Furthermore, if the terminal type of the first terminal is the second terminal type, the first terminal may first decode the information carried by the broadcast channel received on the first resource unit (e.g., all or some of the first resource units) in the first resource set and merge the decoded information (e.g., soft value information). If the number of decoding failures reaches the threshold, the first terminal will then decode the information carried by the broadcast channel received on the first resource unit (e.g., all or some of the first resource units) and the second resource unit (e.g., all or some of the second resource units) in the first and second resource sets and merge the decoded information (e.g., soft value information).

[0280] Thus, since the first terminal can accurately determine the system message based on the information carried by the broadcast channel received on any resource unit in the first resource set, in subsequent steps, the first terminal can accurately select the corresponding uplink resource to initiate random access based on the system message, thereby improving the success rate of the first terminal in random access.

[0281] Step 103: If the terminal type of the first terminal is the first terminal type, the first terminal determines the system message based on the information carried by the broadcast channel received on the first resource unit in the first resource set.

[0282] In some examples, the first terminal may determine the system message based on the information carried by the broadcast channel received on all (or some) first resource units in the first resource set.

[0283] In one example, broadcast channels on a first resource set and a second resource set respectively carry different parts of the system message information. The information carried by the broadcast channel on the first resource set can be understood as the complete information of the dedicated system message for a terminal of the first terminal type, and the information carried by the broadcast channels on both the first and second resource sets can be understood as the complete system message information. Therefore, the first terminal can determine the complete information of its dedicated system message based on the information carried by the broadcast channels received on first resource units (e.g., all or some of the first resource units) in the first resource set.

[0284] In another example, a broadcast channel on a first resource set carries a portion of the system message information, such as the complete information of a dedicated system message for a terminal of a first terminal type, and a broadcast channel on a second resource set carries the complete information of the system message. Thus, a first terminal can determine the complete information of its dedicated system message based on the information carried by the broadcast channel received on a first resource unit (e.g., all or some of the first resource units) in the first resource set.

[0285] In some examples, the first terminal can decode the information carried by the broadcast channel received on the first resource unit (e.g., all or some of the first resource units) in the first resource set and merge the decoded information (e.g., soft value information) to obtain the complete information of the system message.

[0286] Thus, when the terminal type of the first terminal is the first terminal type, that is, when the receiving bandwidth of the first terminal is small, the first terminal can directly determine the system message based on the information carried by the broadcast channel received on the first resource unit in the first resource set with small bandwidth, without having to determine the system message through the information carried by the broadcast channel received on all resource units in the first and second resource sets. Therefore, the number of broadcast channel payloads that the first terminal cannot receive can be reduced, thereby improving the demodulation performance of the first terminal for the information carried by the broadcast channel.

[0287] Step 104: If the terminal type of the first terminal is the second terminal type, the first terminal determines the system message based on the information carried by the broadcast channel received on the resource unit in the third resource set.

[0288] In this embodiment of the application, the third resource set includes at least one of the following: a first resource set and a second resource set.

[0289] In some examples, the first terminal can determine the system message based on the information carried by the broadcast channel received on all (or some) resource units in the third resource set.

[0290] In one example, broadcast channels on a first resource set and a second resource set respectively carry different parts of the system message information. The information carried by the broadcast channel on the first resource set can be understood as the complete information of the dedicated system message for a terminal of the first terminal type, and the information carried by the broadcast channels on both the first and second resource sets can be understood as the complete system message information. Therefore, the first terminal can determine the complete information of its dedicated system message based on the information carried by the broadcast channels received on first resource units (e.g., all or some of the first resource units) in the first resource set.

[0291] In this example, the first terminal can merge and decode the information carried by the broadcast channel received on the first resource unit (e.g., all or some of the first resource units) in the first resource set, and merge and decode the information carried by the broadcast channel received on the second resource unit (e.g., all or some of the second resource units) in the second resource set, and combine the two information to obtain the complete information of the system message.

[0292] In this example, if the first terminal is operating in energy-saving mode, the relevant system messages can all be located on the broadcast channel received on the first resource unit (e.g., all or some of the first resource units) in the first resource set. At this time, the first terminal can also merge and decode the information carried by the broadcast channel received on the first resource unit (e.g., all or some of the first resource units) in the first resource set to obtain the complete information of the dedicated system message.

[0293] In another example, a broadcast channel on a first resource set carries a portion of the system message information, such as the complete information of a dedicated system message for a terminal of a first terminal type, and a broadcast channel on a second resource set carries the complete information of the system message. Thus, a first terminal can determine the complete information of its dedicated system message based on the information carried by the broadcast channel received on a first resource unit (e.g., all or some of the first resource units) in the first resource set.

[0294] In this example, the first terminal can directly merge and decode the information carried by the broadcast channel received on the second resource units (e.g., all or some of the second resource units) in the second resource set to obtain the complete information of the system message; or, the first terminal can decode the information carried by the broadcast channel received on the resource units in the first and second resource sets to obtain the complete information of the system message.

[0295] Thus, when the first terminal is of the second terminal type, i.e. when the first terminal has a larger receiving bandwidth, the first terminal can directly determine the system message based on the information carried by the broadcast channel received on the resource unit in the first resource set and / or the resource unit in the second resource set, rather than determining the system message only through the information carried by the broadcast channel received on the resource unit in a fixed resource set. Therefore, the flexibility of the first terminal in determining the system message can be improved.

[0296] In some examples, the information carried by the broadcast channel received on the first resource unit in the first resource set is determined based on first information, and the information carried by the broadcast channel received on the second resource unit in the second resource set is determined based on second information; the first information and the second information satisfy any one of the following:

[0297] Both the first and second messages are complete information from the system message.

[0298] The first information is the first part of the system message corresponding to the first terminal type, and the second information is the information of the system message excluding the first part of the information.

[0299] The first information includes the third part of the system message, and the second information is the complete information of the system message;

[0300] The first message is the complete information of the system message, and the second message is the preset information.

[0301] Wherein, the first information and the second information are both raw information bits before encoding. The information carried by the broadcast channel transmitted on the first resource unit in the first resource set can be the information obtained after encoding and rate matching of the first information. The information carried by the broadcast channel transmitted on the second resource unit in the second resource set can be the information obtained after encoding and rate matching of the second information.

[0302] The correspondence between the first terminal type and the first part of information can be agreed upon by a protocol, configured by the network-side device, or pre-configured by the network-side device.

[0303] The aforementioned preset information can be information corresponding to a predetermined value. This predetermined value can be 0, but it can also be other values, which are not limited in this embodiment.

[0304] Thus, since the embodiments of this application specify the various conditions that the first information and the second information must meet, the first terminal can accurately determine the information carried by the broadcast channel corresponding to the resource unit on the first resource set and the second resource set according to these conditions. Therefore, the first terminal can accurately receive the complete information of the system message, thereby reducing the occurrence of situations where the first terminal cannot receive the complete information of the system message. In this way, the success rate of the first terminal performing random access can be improved.

[0305] In some examples, the lengths of the first and second information are different; the first and second information satisfy the condition that the first information includes the third part of the system message, and the second information is the complete information of the system message. The complete information of the system message satisfies any of the following:

[0306] The complete information of a system message is determined by a third party.

[0307] The complete information of a system message is determined by the fourth piece of information;

[0308] The complete information of a system message is determined by the third information and the first sub-information;

[0309] In this embodiment of the application, the third information is the information carried by the broadcast channel received on the first resource unit in the first resource set, the fourth information is the information carried by the broadcast channel received on the second resource unit in the second resource set, and the first sub-information is information in the fourth information that is different from the third information.

[0310] It is understood that after encoding and rate matching the first information, the network-side device sends the resulting information (i.e., the third information) on the first resource set, and after encoding and rate matching the second information, the network-side device sends the resulting information (i.e., the fourth information) on the first resource set. Thus, the first terminal can receive the information carried by the broadcast channel (i.e., the third information) on the first resource unit in the first resource set, and / or can receive the information carried by the broadcast information on the second resource unit in the second resource set (i.e., the fourth information). Furthermore, the first terminal can decode the third information (or the fourth information, or the third information and the first sub-information) to obtain the complete information of the system message.

[0311] In some examples, when the terminal type of the first terminal is a first terminal type, the complete information of the system message can be determined by the third information; when the terminal type of the first terminal is a second terminal type, the complete information of the system message can be determined by the third information and the first sub-information.

[0312] For example, the information carried by the broadcast channel on the first resource set (e.g., the third information) is obtained by encoding and rate matching the third part of the system message (i.e., the first information). This third part of the information can be understood as the complete information of the system message specific to the first terminal type. The information carried by the broadcast channel on the second resource set (e.g., the fourth information) is obtained by encoding and rate matching the complete information of the system message (i.e., the second information). The transmission performance corresponding to the second resource set is better than that corresponding to the first resource set. In the case where the terminal type of the first terminal is the first terminal type, the first terminal can determine the complete information of the system message based on the third information. In the case where the terminal type of the first terminal is the second terminal type, the first terminal can determine the complete information of the system message based on the fourth information.

[0313] For example, the information carried by the broadcast channel on the first resource set (e.g., the third information) is obtained by encoding and rate matching the third part of the system message (i.e., the first information). This third part of the information can be understood as the complete information of the exclusive system message of the first terminal type terminal. The information carried by the broadcast channel on the second resource set (e.g., the fourth information) is obtained by encoding and rate matching the complete information of the system message (i.e., the second information). The first resource set uses a repetitive or low bit rate transmission method for transmission. The transmission performance corresponding to the first resource set is better than that corresponding to the second resource set. In the case that the terminal type of the first terminal is the second terminal type, the first terminal can determine the complete information of the system message based on the third information and the first sub-information.

[0314] In some examples, where the lengths of the first and second information are different, the network-side device can indicate the lengths of the first and second information to the first terminal, for example, through explicit or implicit indicator lights.

[0315] Thus, since the embodiments of this application specify the conditions that the complete information of the system message must meet when the lengths of the first information and the second information are different, the first terminal can accurately determine the complete information of the system message based on these conditions.

[0316] In some examples, the first and second information are of the same length; the first and second information satisfy the condition that the first information includes the third part of the system message and the second information is the complete information of the system message; when the first information is determined according to the fifth information, the complete information of the system message is determined by the second and third sub-information.

[0317] In this embodiment of the application, the fifth information is obtained by bit stuffing the third part of the information with predetermined bits. The second sub-information is the same information in the third and fourth information. The third information is the information carried by the broadcast channel received on the first resource unit in the first resource set. The fourth information is the information carried by the broadcast channel received on the second resource unit in the second resource set. The third sub-information is the information in the fourth information other than the second sub-information.

[0318] The network-side device can indicate to the first terminal via signaling that the first information is determined according to the fifth information, and / or the position for bit stuffing, and / or the predetermined number of bits, so that the first terminal can accurately know that the first information is determined according to the fifth information.

[0319] For example, the information carried by the broadcast channel on the first resource set (e.g., the third information) is obtained by encoding and rate matching the third part of the system message (i.e., the first information). This third part of the information can be understood as the complete information of the exclusive system message of the terminal of the first terminal type. And the information carried by the broadcast channel on the second resource set (e.g., the fourth information) is obtained by encoding and rate matching the complete information of the system message (i.e., the second information). In the case that the terminal type of the first terminal is the second terminal type, the first terminal can first decode the same information in the third and fourth information and merge the decoded information (e.g., soft value information) to obtain the second sub-information. Then, based on the fourth information and the second sub-information, the remaining information (i.e., the third sub-information) is determined. Thus, the first terminal can combine the second sub-information and the third sub-information to obtain the complete information of the system message.

[0320] Thus, since the embodiments of this application specify the conditions for determining the complete information of a system message when the lengths of the first and second information are the same, the first terminal can accurately determine the complete information of the system message based on the conditions described above.

[0321] In some embodiments of this application, the third resource set mentioned above includes the first resource set and the second resource set mentioned above. In some examples, step 104 can be specifically implemented by step 104a as described below.

[0322] Step 104a: The first terminal combines the information carried by the broadcast channel received on the resource units in the first resource set and the second resource set, and determines the system message based on the combined information.

[0323] In some examples, the first terminal may combine the information carried by the broadcast channel received on all (or some) resource units in the first and second resource sets, and determine the system message based on the combined information.

[0324] In some examples, if the first information and the second information satisfy any of the following: the first information is a first part of the system message and the second information is information of the system message other than the first part of the system message; or the first information includes a third part of the system message and the second information is the complete information of the system message, the first terminal may combine the information carried by the broadcast channel received on all resource units in the first resource set and the second resource set, and determine the system message based on the combined information.

[0325] Thus, since the first terminal can combine the information carried by the broadcast channel received on the resource units in the first and second resource sets to determine the system message, that is, the first terminal can accurately determine the system message, thereby improving the success rate of the first terminal in random access.

[0326] In some embodiments of this application, the method for determining the above system message satisfies at least one of the following:

[0327] The method for determining system messages is agreed upon in the protocol;

[0328] The system message is determined by at least one synchronization signal contained in the SSB corresponding to the broadcast channel;

[0329] The method for determining system messages is indicated by the third signaling received by the first terminal;

[0330] The method for determining system messages is determined by the position of the SSB's synchronization grid;

[0331] The method for determining system messages is determined by the type of the SSB's synchronization grid;

[0332] The method for determining system messages is based on the assumed transmission period of the SSB;

[0333] The method for determining system messages is determined by the SSB's transmission cycle;

[0334] The method for determining system messages is determined by the timing of SSB transmission;

[0335] The method for determining system messages is determined by the index corresponding to the SSB;

[0336] The method for determining system messages is determined by the index group corresponding to the SSB;

[0337] The method for determining system messages is determined by the DMRS corresponding to the SSB;

[0338] The method for determining system messages is determined by the bandwidth type corresponding to the broadcast channel;

[0339] The method for determining system messages is determined by the frequency range corresponding to the broadcast channel;

[0340] The system message is determined by the WUS instruction received by the first terminal;

[0341] The method for determining system messages is indicated to the network-side device by the WUS request sent by the first terminal.

[0342] It should be noted that for a detailed explanation of the specific method for determining system messages, please refer to the detailed description of the method for determining the mapping method corresponding to system messages in the above embodiments. This application will not repeat the details here.

[0343] As can be seen, since the embodiments of this application specify the various conditions that must be met for the determination method of system messages, the first terminal can accurately determine the determination method of system messages based on these conditions, thereby accurately determining the system messages and improving the success rate of random access by the first terminal.

[0344] Figure 6 A flowchart illustrating the broadcast channel transmission method provided in an embodiment of this application is shown. Figure 6 As shown, the broadcast channel transmission method provided in this application embodiment may include the following step 201.

[0345] Step 201: The network-side device sends a broadcast channel on the first resource set and the second resource set.

[0346] In this embodiment of the application, the first resource set and the second resource set are used for the transmission of the broadcast channel; the first resource set and the second resource set overlap in the time domain but do not overlap in the frequency domain.

[0347] It should be noted that the descriptions of the first resource set and the second resource set can be found in the specific descriptions in the above embodiments, and will not be repeated here in the embodiments of this application.

[0348] In some embodiments of this application, the bandwidth of the second resource set is less than or equal to a bandwidth threshold, and the second resource set includes at least one first resource unit that is continuous in the frequency domain; the third resource set includes at least one second resource unit.

[0349] It should be noted that the descriptions of the first resource set, the second resource set, the first resource unit, and the second resource unit can be found in the specific descriptions in the above embodiments, and will not be repeated here in the embodiments of this application.

[0350] Thus, since the embodiments of this application specify the conditions that at least one first resource unit must meet, the network-side device can accurately determine at least one first resource unit based on these conditions. Therefore, the network-side device can accurately determine the first resource set.

[0351] In some examples, at least one of the above-mentioned first resource units satisfies at least one of the following:

[0352] At least one first resource element includes a third resource element, which is the resource element corresponding to the center carrier frequency of the SSB corresponding to the broadcast channel;

[0353] At least one first resource element and a fourth resource element have a first offset value in the frequency domain, and the fourth resource element includes at least one of the following: the starting resource element of the broadcast channel, the starting resource element of the SSB, and the resource element corresponding to the reference frequency point.

[0354] Thus, since the embodiments of this application specify the conditions that at least one first resource unit must meet, the network-side device can accurately determine at least one first resource unit based on these conditions. Therefore, the network-side device can accurately determine the first resource set.

[0355] In some examples, the first resource element and the fifth resource element mentioned above at least partially overlap in the frequency domain, wherein the fifth resource element is a resource element corresponding to at least one synchronization signal, which is a signal contained in the SSB corresponding to the broadcast channel.

[0356] Thus, since the embodiments of this application specify the relative relationship between at least one first resource unit and a fifth resource unit in the frequency domain, the network-side device can accurately determine at least one first resource unit based on this relative relationship, thereby enabling the network-side device to accurately determine the first resource set.

[0357] In some examples, at least one of the following conditions is satisfied between the first resource unit and the fifth resource unit:

[0358] At least one of the center frequencies of the first resource unit is the same as the center frequency of the fifth resource unit;

[0359] At least one center frequency of the first resource unit has a second offset value with the center frequency of the fifth resource unit, and the sum of the bandwidth of the first resource set and the second offset value is less than or equal to the bandwidth threshold.

[0360] Thus, since the embodiments of this application specify the relative relationship between at least one first resource unit and a fifth resource unit in the frequency domain, the network-side device can accurately determine at least one first resource unit based on this relative relationship, thereby enabling the network-side device to accurately determine the first resource set.

[0361] In some examples, the aforementioned first resource-related information satisfies at least one of the following:

[0362] The information related to the primary resource is stipulated in the agreement;

[0363] The first resource-related information is indicated to the terminal by the first signal sent by the network-side device.

[0364] In this embodiment of the application, the aforementioned first resource-related information includes at least one of the following: bandwidth, frequency domain location, and number.

[0365] It is understandable that, when the first resource-related information satisfies the indication of the first signal sent by the network-side device, the network-side device can first determine the first resource-related information, and then indicate the first resource-related information to the terminal through the first signal.

[0366] Thus, since the embodiments of this application specify the various conditions that the first resource-related information must meet, the network-side device can accurately determine the first resource-related information based on these conditions, and / or accurately indicate the first resource-related information to the terminal, thereby enabling the network-side device and / or the terminal to accurately determine the first resource set.

[0367] In some examples, the above-mentioned second resource-related information satisfies at least one of the following:

[0368] The information related to the primary resource is stipulated in the agreement;

[0369] The first resource-related information is indicated to the terminal by a second signal sent by the network-side device;

[0370] The information related to the first resource is indicated by the information carried by the broadcast channel received on the first resource unit.

[0371] In this embodiment of the application, the above-mentioned second resource-related information includes at least one of the following: bandwidth, frequency domain location, and number.

[0372] It is understandable that when the second resource-related information satisfies the indication of the second signal sent by the network-side device, the network-side device can first determine the second resource-related information and then indicate the second resource-related information to the terminal through the second signal.

[0373] Thus, since the embodiments of this application specify the various conditions that the second resource-related information must meet, the network-side device can accurately determine the second resource-related information based on these conditions, and / or accurately indicate the second resource-related information to the terminal, thereby enabling the network-side device and / or the terminal to accurately determine the second resource set.

[0374] In summary, since the embodiments of this application specify the conditions that the resource units included in the first resource set and the second resource set must meet, and specify the conditions that the bandwidth occupied by the first resource set must meet, the network-side device can accurately distinguish between the first resource set and the second resource set, and accurately send broadcast channels on the first resource set and the second resource set.

[0375] In some examples, the information carried by the broadcast channel transmitted on the first resource unit in the first resource set is determined based on first information, and the information carried by the broadcast channel transmitted on the second resource unit in the second resource set is determined based on second information; the first information and the second information satisfy any one of the following:

[0376] Both the first and second messages are complete information from the system message.

[0377] The first information is the first part of the system message corresponding to the first terminal type, and the second information is the information of the system message excluding the first part of the information.

[0378] The first information includes the third part of the system message, and the second information is the complete information of the system message;

[0379] The first message is the complete information of the system message, and the second message is the preset information.

[0380] In this embodiment of the application, the bandwidth supported by the terminal of the first terminal type is less than or equal to the bandwidth threshold.

[0381] Thus, since the embodiments of this application specify the various conditions that the first information and the second information must meet, the network-side device can accurately determine the information carried by the broadcast channel corresponding to the resource unit on the first resource set and the second resource set based on these conditions. Therefore, the network-side device can accurately map the complete information of the system message on the first resource set and the second resource set, so that the terminal can receive the complete information of the system message. This can improve the success rate of the terminal performing random access.

[0382] In some examples, where the lengths of the third part of the information and the complete information of the system message differ, the aforementioned first information is determined based on the fifth information.

[0383] The fifth piece of information mentioned above is obtained by filling the third part of the information with predetermined bits.

[0384] In this context, the aforementioned predetermined bits are known bits, and the fifth piece of information is the same as the first piece of information. That is, the network-side device can fill the known bits into the third part of the information to obtain the first information. The known bits can be a bit sequence consisting of at least one value, which can be 0 or 1. Of course, the value can also be other values, which are not limited in this embodiment.

[0385] Thus, since the network-side device can ensure that the lengths of the first and second information are consistent by stuffing bits into the third part of the information when the lengths of the third part of the information and the complete information of the system message are different, the network-side device can quickly map the first and second information onto different resource sets in subsequent steps, thereby simplifying the complexity of the mapping process.

[0386] This application provides a broadcast channel transmission method in which a network-side device transmits a broadcast channel on a first resource set and a second resource set, the first resource set and the second resource set being used for the transmission of the broadcast channel; wherein the first resource set and the second resource set overlap in the time domain but do not overlap in the frequency domain. Since network-side devices can transmit broadcast channels on both the first and second resource sets, different terminals can receive broadcast channels on different resource sets. This means a terminal with limited receiving bandwidth can receive broadcast channels on a single resource set, rather than on the entire transmission resource of the broadcast channel. This reduces the probability of a terminal with limited bandwidth failing to receive the complete information carried on the broadcast channel, thus improving its demodulation performance and reducing the likelihood of it being unable to determine the information. Alternatively, a terminal with greater receiving bandwidth can receive broadcast channels on both the first and second resource sets. This means it can receive broadcast channels on the entire transmission resource of the broadcast channel, preventing a reduction in the amount of information received and ensuring its demodulation performance. This further reduces the likelihood of a terminal being unable to determine the information and thus prevents it from being unable to perform random access. In this way, the success rate of random access can be improved.

[0387] In some embodiments of this application, before step 201 above, the broadcast channel transmission method provided in this application may further include step 202, or step 203, or step 204.

[0388] Step 202: The network-side device performs at least one repetition operation on the encoded bit stream corresponding to at least a portion of the information in the system message, and performs rate matching on at least one first bit stream obtained by repetition based on the bandwidth of at least one resource unit in the at least one resource set, and maps each second bit stream obtained by rate matching onto the corresponding resource unit.

[0389] It should be noted that the description of repeated operations and mapping for network-side devices can be found in the specific descriptions in the above embodiments, and will not be repeated here in the embodiments of this application.

[0390] Thus, since the network-side device can accurately map the encoded bit stream corresponding to at least a portion of the system message information onto the resource units of at least one resource set, the situation where the network-side device cannot map the encoded bit stream onto the resource units of at least one resource set can be reduced, thereby reducing the situation where the terminal cannot determine the system message.

[0391] Step 203: Based on the bandwidth of each resource unit in the above-mentioned at least one resource set, the network-side device performs rate matching on the encoded bit stream corresponding to at least a portion of the information of the system message, performs the rate matching-derived third bit stream at least once, and maps each of the repeated third bit streams onto the corresponding resource unit.

[0392] It should be noted that the description of repeated operations and mapping for network-side devices can be found in the specific descriptions in the above embodiments, and will not be repeated here in the embodiments of this application.

[0393] Thus, since the network-side device can accurately map the encoded bit stream corresponding to at least a portion of the information in the system message onto the resource unit of at least one resource set, the situation where the network-side device cannot map the encoded bit stream onto the resource unit of at least one resource set can be reduced, thereby reducing the situation where the terminal cannot determine the system message.

[0394] Step 204: The network-side device performs rate matching on the encoded bit stream corresponding to the complete information of the system message based on the bandwidth of the first resource set and the second resource set, and maps the fourth bit stream obtained by rate matching onto the resource units in the first resource set and the second resource set.

[0395] It should be noted that the description of repeated operations and mapping for network-side devices can be found in the specific descriptions in the above embodiments, and will not be repeated here in the embodiments of this application.

[0396] Thus, since the network-side device can accurately map the encoded bit stream corresponding to at least a portion of the system message information onto the first resource set and the second resource set, the situation where the network-side device cannot map the encoded bit stream onto the resource units in the first resource set and the second resource set can be reduced, thereby reducing the situation where the terminal cannot determine the system message.

[0397] In some examples, the above repetition operation can be performed in any of the following ways: bit-interleaved repetition or block-interleaved repetition.

[0398] As can be seen from the embodiments of this application, the method of repeated operation is specified. Therefore, the network-side device can accurately perform the method of repeated operation and accurately send the broadcast channel to the terminal to send system messages to the terminal.

[0399] In some embodiments of this application, the mapping method corresponding to the above system messages satisfies at least one of the following:

[0400] The mapping method for system messages is agreed upon by the protocol;

[0401] The mapping method corresponding to the system message is determined by at least one synchronization signal contained in the SSB corresponding to the broadcast channel;

[0402] The mapping method corresponding to the system message is indicated by the fifth signaling received by the network-side device;

[0403] The mapping method corresponding to system messages is determined by the position of the SSB's synchronization grid;

[0404] The mapping method corresponding to system messages is determined by the type of the SSB's synchronization grid;

[0405] The mapping method corresponding to system messages is determined by the assumed transmission period of the SSB;

[0406] The mapping method corresponding to system messages is determined by the transmission cycle of the SSB;

[0407] The mapping method corresponding to system messages is determined by the transmission timing of the SSB;

[0408] The mapping method for system messages is determined by the index corresponding to the SSB;

[0409] The mapping method corresponding to the system message and the index group corresponding to the SSB are determined.

[0410] The mapping method corresponding to the system message is determined by the DMRS corresponding to the SSB;

[0411] The mapping method for system messages is determined by the bandwidth type of the broadcast channel;

[0412] The mapping method for system messages is determined by the frequency range corresponding to the broadcast channel;

[0413] The mapping method corresponding to the system message is indicated to the terminal by the WUS sent by the network-side device;

[0414] The mapping method corresponding to the system message is determined by the WUS request received by the network-side device.

[0415] In some examples, the aforementioned fifth signaling can be transmitted as at least one of the following: other cell, other TRP, other carrier, other band, or other subband. Here, "other cell" can be understood as a cell different from the serving cell corresponding to the network-side device; "other TRP" can be understood as a TRP different from the TRP corresponding to the network-side device; "other carrier" can be understood as a carrier different from the carrier corresponding to the network-side device; "other band" can be understood as a band different from the band corresponding to the network-side device; and "other subband" can be understood as a subband different from the subband corresponding to the network-side device.

[0416] Thus, since the embodiments of this application specify the various conditions that the mapping method corresponding to the system message must meet, the network-side device can accurately determine the mapping method corresponding to the system message based on these conditions, and / or accurately indicate the mapping method corresponding to the system message to the terminal, so that the terminal can accurately determine the system message in subsequent steps.

[0417] Figure 7 A flowchart illustrating the broadcast channel transmission method provided in an embodiment of this application is shown. Figure 7 As shown, the broadcast channel transmission method provided in this application embodiment may include the following steps 301 and 302.

[0418] Step 301: The network-side device sends a broadcast channel on the first resource set and the second resource set.

[0419] In this embodiment of the application, the first resource set and the second resource set are used for the transmission of the broadcast channel; the first resource set and the second resource set overlap in the time domain but do not overlap in the frequency domain.

[0420] Step 302: The first terminal receives a broadcast channel on at least one of the first resource set and the second resource set.

[0421] In this embodiment of the application, the first resource set and the second resource set are used for the transmission of the broadcast channel; the first resource set and the second resource set overlap in the time domain but do not overlap in the frequency domain.

[0422] It should be noted that the descriptions of the first resource set and the second resource set can be found in the specific descriptions in the above embodiments, and will not be repeated here in the embodiments of this application.

[0423] This application provides a broadcast channel transmission method, in which a network-side device can transmit a broadcast channel on a first resource set and a second resource set, thereby enabling a first terminal to receive the broadcast channel on at least one of the first and second resource sets. The first and second resource sets are used for the transmission of the broadcast channel, and the first and second resource sets overlap in the time domain but do not overlap in the frequency domain. Since the first terminal can receive the broadcast channel on at least one of the first and second resource sets, instead of receiving the broadcast channel on both sets, it can receive the broadcast channel on a single resource set with limited bandwidth, rather than on the entire transmission resource of the broadcast channel. This reduces the probability of the first terminal failing to receive the complete information carried on the broadcast channel, thus improving its demodulation performance and reducing the likelihood of the terminal being unable to determine the information carried on the broadcast channel, thereby preventing the terminal from being unable to perform random access. Alternatively, the first terminal can receive the broadcast channel on both the first and second resource sets with greater bandwidth, meaning it can receive the broadcast channel on the entire transmission resource of the broadcast channel. This avoids reducing the amount of information received from the broadcast channel, ensuring its demodulation performance and further reducing the likelihood of the terminal being unable to determine the information carried on the broadcast channel, thus preventing the terminal from being unable to perform random access. This improves the success rate of random access.

[0424] The broadcast channel transmission method provided in this application can be executed by a broadcast channel transmission device. This application uses the example of a broadcast channel transmission device executing the broadcast channel transmission method to illustrate the broadcast channel transmission device provided in this application.

[0425] This application provides a broadcast channel transmission device. As an example, the broadcast channel transmission device can be a communication device or a component within a communication device, such as a chip. The communication device can be a terminal, a network-side device, or a server, etc. Exemplarily, the terminal can be, but is not limited to, the type of terminal 11 listed above, and the network-side device can be, but is not limited to, the type of network-side device 12 listed above. This application does not impose specific limitations.

[0426] The broadcast channel transmission device includes a receiving module, a transmitting module, and a processing module. These modules can be implemented in software or hardware. When implemented in hardware, the processing module can be implemented by a processor. For example, the processor can include general-purpose processors, special-purpose processors, etc., such as central processing units (CPUs), microprocessors, digital signal processors (DSPs), artificial intelligence (AI) processors, graphics processing units (GPUs), application-specific integrated circuits (ASICs), network processors (NPs), field-programmable gate arrays (FPGAs), or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc. The receiving and transmitting modules can be implemented by a communication interface, which can include one or more of the following: transceivers, pins, circuits, buses, radio frequency units, etc.

[0427] Specifically, see Figure 8 When the broadcast channel transmission device 300 is a terminal or a component within a terminal, the broadcast channel transmission device 300 includes a receiving module 301. The receiving module 301 is configured to receive a broadcast channel on at least one of a first resource set and a second resource set, the first and second resource sets being used for the transmission of the broadcast channel; wherein the first and second resource sets overlap in the time domain but do not overlap in the frequency domain.

[0428] This application provides a broadcast channel transmission apparatus. Because the broadcast channel transmission apparatus can receive the broadcast channel on at least one resource set (a first resource set and a second resource set), instead of receiving the broadcast channel on both sets, it can receive the broadcast channel on a single resource set even with limited bandwidth. In other words, the broadcast channel transmission apparatus can receive the broadcast channel on a resource set with less bandwidth, rather than on the entire transmission resource of the broadcast channel. Therefore, the probability of the broadcast channel transmission apparatus failing to fully receive the information carried on the broadcast channel can be reduced, thereby improving the accuracy of the broadcast channel transmission apparatus's reception of the information carried on the broadcast channel. The demodulation performance of the information is improved, thereby reducing the likelihood of the terminal being unable to determine the information carried on the broadcast channel, thus preventing the terminal from being unable to perform random access. Alternatively, the broadcast channel transmission device can receive the broadcast channel on the first and second resource sets when the receiving bandwidth is large. In other words, the broadcast channel transmission device can receive the broadcast channel on the complete transmission resources of the broadcast channel. Therefore, it can avoid the reduction of the amount of information carried on the broadcast channel received by the broadcast channel transmission device, thereby ensuring the demodulation performance of the broadcast channel transmission device in demodulating the information carried on the broadcast channel, and further reducing the likelihood of the terminal being unable to determine the information carried on the broadcast channel, thus preventing the terminal from being unable to perform random access. In this way, the success rate of random access can be improved.

[0429] In one possible implementation, the bandwidth of the first resource set is less than or equal to a bandwidth threshold, and the first resource set includes at least one first resource unit that is continuous in the frequency domain; the second resource set includes at least one second resource unit.

[0430] In one possible implementation, at least one first resource unit satisfies at least one of the following: at least one first resource unit includes a third resource unit, the third resource unit being the resource unit corresponding to the center carrier frequency of the synchronization signal block SSB corresponding to the broadcast channel; at least one first resource unit and a fourth resource unit have a first offset value in the frequency domain, the fourth resource unit including at least one of the following: the starting resource unit of the broadcast channel, the starting resource unit of the SSB, and the resource unit corresponding to the reference frequency point.

[0431] In one possible implementation, at least one first resource element and a fifth resource element at least partially overlap in the frequency domain, wherein the fifth resource element is a resource element corresponding to at least one synchronization signal, and the synchronization signal is a signal contained in the SSB corresponding to the broadcast channel.

[0432] In one possible implementation, at least one first resource unit and the fifth resource unit satisfy any of the following: the center frequency of at least one first resource unit is the same as the center frequency of the fifth resource unit; the center frequency of at least one first resource unit has a second offset value with the center frequency of the fifth resource unit, and the sum of the bandwidth of the first resource set and the second offset value is less than or equal to the bandwidth threshold.

[0433] In one possible implementation, the first resource-related information of the first resource unit satisfies at least one of the following: the first resource-related information is agreed upon by a protocol; the first resource-related information is indicated by a first signal received by the broadcast channel transmission device 300; the second resource-related information of the second resource unit satisfies at least one of the following: the second resource-related information is agreed upon by a protocol; the second resource-related information is indicated by a second signal received by the broadcast channel transmission device 300; the second resource-related information is indicated by information carried by the broadcast channel received on the first resource unit; wherein the first resource-related information includes at least one of the following: bandwidth, frequency domain position, and number; and the second resource-related information includes at least one of the following: bandwidth, frequency domain position, and number.

[0434] In one possible implementation, the transmission type of the broadcast channel satisfies at least one of the following: the transmission type of the broadcast channel is defined by a protocol; the transmission type of the broadcast channel is determined by at least one synchronization signal contained in the SSB corresponding to the broadcast channel; the transmission type of the broadcast channel is indicated by a first signaling received by the broadcast channel transmission device 300; the transmission type of the broadcast channel is determined by the position of the synchronization grid of the SSB; the transmission type of the broadcast channel is determined by the type of the synchronization grid of the SSB; the transmission type of the broadcast channel is determined by the assumed transmission period of the SSB; the transmission type of the broadcast channel is determined by the transmission period of the SSB; the transmission type of the broadcast channel is determined by the transmission timing of the SSB; the transmission type of the broadcast channel is determined by the index corresponding to the SSB; the transmission type of the broadcast channel... The transmission type of the broadcast channel is determined by the index group corresponding to the SSB; the transmission type of the broadcast channel is determined by the DMRS corresponding to the SSB; the transmission type of the broadcast channel is determined by the bandwidth type corresponding to the broadcast channel; the transmission type of the broadcast channel is determined by the frequency range corresponding to the broadcast channel; the transmission type of the broadcast channel is indicated by the WUS indication received by the broadcast channel transmission device 300; the transmission type of the broadcast channel is indicated to the network-side device by the WUS request sent by the broadcast channel transmission device 300; the transmission type of the broadcast channel is indicated by the first reference signal received by the broadcast channel transmission device 300; the transmission type of the broadcast channel is indicated by the broadcast message received by the broadcast channel transmission device 300; the transmission type of the broadcast channel is indicated by the paging message received by the broadcast channel transmission device 300.

[0435] In one possible implementation, the first resource set and the second resource set satisfy at least one of the following: the first resource set and the second resource set are agreed upon by a protocol; the first resource set and the second resource set are determined by at least one synchronization signal contained in the SSB corresponding to the broadcast channel; the first resource set and the second resource set are indicated by a second signaling received by the broadcast channel transmission device 300; the first resource set and the second resource set are determined by the position of the synchronization grid of the SSB; the first resource set and the second resource set are determined by the type of the synchronization grid of the SSB; the first resource set and the second resource set are determined by the assumed transmission period of the SSB; the first resource set and the second resource set are determined by the transmission period of the SSB; the first resource set and the second resource set are determined by the transmission timing of the SSB; the first resource set and the second resource set are determined by the index corresponding to the SSB; the first resource set... The first and second resource sets are determined by the index group corresponding to the SSB; the first and second resource sets are determined by the DMRS corresponding to the SSB; the first and second resource sets are determined by the bandwidth type corresponding to the broadcast channel; the first and second resource sets are determined by the frequency range corresponding to the broadcast channel; the first and second resource sets are indicated by the WUS indication received by the broadcast channel transmission device 300; the first and second resource sets are indicated to the network-side device by the WUS request sent by the broadcast channel transmission device 300; the first and second resource sets are indicated by the second reference signal received by the broadcast channel transmission device 300; the first and second resource sets are indicated by the broadcast message received by the broadcast channel transmission device 300; the first and second resource sets are indicated by the paging message received by the broadcast channel transmission device 300.

[0436] In one possible implementation, when the terminal type of the broadcast channel transmission device 300 is a first terminal type, at least one resource set is a first resource set, and the bandwidth of the first resource set is less than or equal to a bandwidth threshold; when the terminal type of the broadcast channel transmission device 300 is a second terminal type, at least one resource set includes the first resource set and the second resource set; wherein, the bandwidth supported by the terminal of the first terminal type is less than or equal to the bandwidth threshold, and the bandwidth supported by the terminal of the second terminal type is greater than the bandwidth threshold.

[0437] In one possible implementation, the broadcast channel transmission apparatus 300 provided in this application embodiment may further include a processing module. The processing module is configured to: determine a system message based on information carried by a broadcast channel received on any resource unit in at least one resource set; determine a system message based on information carried by a broadcast channel received on a first resource unit in the first resource set when the terminal type of the broadcast channel transmission apparatus 300 is a first terminal type; and determine a system message based on information carried by a broadcast channel received on a resource unit in a third resource set when the terminal type of the broadcast channel transmission apparatus 300 is a second terminal type; wherein the third resource set includes at least one of the following: a first resource set and a second resource set.

[0438] In one possible implementation, the third resource set includes the first resource set and the second resource set. Specifically, the processing module is used to combine the information carried by the broadcast channel received on the resource units in the first and second resource sets, and determine the system message based on the combined information.

[0439] In one possible implementation, the information carried by the broadcast channel received on the first resource unit in the first resource set is determined according to the first information, and the information carried by the broadcast channel received on the second resource unit in the second resource set is determined according to the second information; the first information and the second information satisfy any of the following: both the first information and the second information are complete information of the system message; the first information is the first part of the system message corresponding to the first terminal type, and the second information is the information of the system message excluding the first part of the information; the first information includes the third part of the system message, and the second information is complete information of the system message; the first information is complete information of the system message, and the second information is preset information.

[0440] In one possible implementation, the first information and the second information have different lengths; the first information and the second information satisfy the following conditions: the first information includes the third part of the system message, and the second information is the complete information of the system message; the complete information of the system message satisfies any of the following: the complete information of the system message is determined by the third information; the complete information of the system message is determined by the fourth information; the complete information of the system message is determined by the third information and the first sub-information; wherein, the third information is the information carried by the broadcast channel received on the first resource unit in the first resource set, the fourth information is the information carried by the broadcast channel received on the second resource unit in the second resource set, and the first sub-information is information in the fourth information that is different from the third information.

[0441] In one possible implementation, the first information and the second information have the same length; the first information and the second information satisfy the condition that the first information includes the third part of the system message, and the second information is the complete information of the system message; when the first information is determined according to the fifth information, the system message is determined by the second sub-information and the third sub-information; wherein, the fifth information is obtained by bit-filling the third part of the information using predetermined bits, the second sub-information is the same information in the third information and the fourth information, the third information is the information carried by the broadcast channel received on the first resource unit in the first resource set, the fourth information is the information carried by the broadcast channel received on the second resource unit in the second resource set, and the third sub-information is the information in the fourth information excluding the second sub-information.

[0442] In one possible implementation, the system message determination method satisfies at least one of the following: the system message determination method is agreed upon by a protocol; the system message determination method is determined by at least one synchronization signal contained in the SSB corresponding to the broadcast channel; the system message determination method is indicated by a third signaling received by the broadcast channel transmission device 300; the system message determination method is determined by the position of the synchronization grid of the SSB; the system message determination method is determined by the type of the synchronization grid of the SSB; the system message determination method is determined by the assumed transmission period of the SSB; the system message determination method is determined by the transmission period of the SSB; the system message determination method is determined by the transmission timing of the SSB; the system message determination method is determined by the index corresponding to the SSB; the system message determination method is determined by the index group corresponding to the SSB; the system message determination method is determined by the DMRS corresponding to the SSB; the system message determination method is determined by the bandwidth type corresponding to the broadcast channel; the system message determination method is determined by the frequency range corresponding to the broadcast channel; the system message determination method is indicated by a WUS indication received by the broadcast channel transmission device 300; the system message determination method is indicated to the network-side device by a WUS request sent by the broadcast channel transmission device 300.

[0443] In one possible implementation, the processing module is further configured to determine the mapping method corresponding to the system message, wherein the mapping method corresponding to the system message includes any one of the following: performing at least one repetition operation on the encoded bit stream corresponding to at least a portion of the information of the system message, and performing rate matching on at least one first bit stream obtained by repetition based on the bandwidth of at least one resource unit in at least one resource set, and mapping each second bit stream obtained by rate matching onto the corresponding resource unit; performing rate matching on the encoded bit stream corresponding to at least a portion of the information of the system message based on the bandwidth of each resource unit in at least one resource set, and performing at least one repetition operation on the third bit stream obtained by rate matching, and mapping each third bit stream obtained by repetition onto the corresponding resource unit; performing rate matching on the encoded bit stream corresponding to the complete information of the system message based on the bandwidth of the first resource set and the second resource set, and mapping the fourth bit stream obtained by rate matching onto the resource units in the first resource set and the second resource set.

[0444] In one possible implementation, the mapping method corresponding to the system message satisfies at least one of the following: the mapping method corresponding to the system message is agreed upon by the protocol; the mapping method corresponding to the system message is determined by at least one synchronization signal contained in the SSB corresponding to the broadcast channel; the mapping method corresponding to the system message is indicated by the fourth signaling received by the broadcast channel transmission device 300; the mapping method corresponding to the system message is determined by the position of the synchronization grid of the SSB; the mapping method corresponding to the system message is determined by the type of the synchronization grid of the SSB; the mapping method corresponding to the system message is determined by the assumed transmission period of the SSB; the mapping method corresponding to the system message is determined by the transmission period of the SSB; the mapping method corresponding to the system message is determined by the transmission timing of the SSB; the mapping method corresponding to the system message is determined by the index corresponding to the SSB; the mapping method corresponding to the system message is determined by the index group corresponding to the SSB; the mapping method corresponding to the system message is determined by the DMRS corresponding to the SSB; the mapping method corresponding to the system message is determined by the bandwidth type corresponding to the broadcast channel; the mapping method corresponding to the system message is determined by the frequency range corresponding to the broadcast channel; the mapping method corresponding to the system message is indicated by the WUS indication received by the broadcast channel transmission device 300; the mapping method corresponding to the system message is indicated to the network-side device by the WUS request sent by the broadcast channel transmission device 300.

[0445] See Figure 9 When the broadcast channel transmission device is a network-side device or a component of a network-side device, the broadcast channel transmission device 400 includes a transmission module 401. The transmission module 401 is used to transmit a broadcast channel on a first resource set and a second resource set, the first resource set and the second resource set being used for the transmission of the broadcast channel; wherein the first resource set and the second resource set overlap in the time domain but do not overlap in the frequency domain.

[0446] This application provides a broadcast channel transmission device. Since the broadcast channel transmission device can transmit broadcast channels on a first resource set and a second resource set, different terminals can receive broadcast channels on different resource sets. That is, a terminal with a smaller receiving bandwidth can receive broadcast channels on a resource set with a smaller bandwidth, rather than receiving broadcast channels on the full transmission resources of the broadcast channel. Therefore, the probability of a terminal with a smaller receiving bandwidth failing to fully receive the information carried on the broadcast channel can be reduced, thereby improving the demodulation performance of the terminal with a smaller receiving bandwidth on the information carried on the broadcast channel. This further reduces the situation where a terminal with a smaller receiving bandwidth cannot determine the information carried on the broadcast channel, thus preventing the terminal with a smaller receiving bandwidth from being unable to perform random access. Alternatively, a terminal with a larger receiving bandwidth can receive broadcast channels on both the first and second resource sets. This means that a terminal with a larger receiving bandwidth can receive broadcast channels on the full transmission resources of the broadcast channel. Therefore, the amount of information carried on the broadcast channel received by the terminal with a larger receiving bandwidth can be prevented from decreasing, thus ensuring the demodulation performance of the terminal with a larger receiving bandwidth on the information carried on the broadcast channel. This further reduces the situation where the terminal cannot determine the information carried on the broadcast channel, thus preventing the terminal from being unable to perform random access. This can improve the success rate of random access.

[0447] In one possible implementation, the bandwidth of the first resource set is less than or equal to a bandwidth threshold, and the first resource set includes at least one first resource unit that is continuous in the frequency domain; the second resource set includes at least one second resource unit.

[0448] In one possible implementation, at least one first resource unit satisfies at least one of the following: at least one first resource unit includes a third resource unit, the third resource unit being the resource unit corresponding to the center carrier frequency of the synchronization signal block SSB corresponding to the broadcast channel; at least one first resource unit and a fourth resource unit have a first offset value in the frequency domain, the fourth resource unit including at least one of the following: the starting resource unit of the broadcast channel, the starting resource unit of the SSB, and the resource unit corresponding to the reference frequency point.

[0449] In one possible implementation, at least one first resource element and a fifth resource element at least partially overlap in the frequency domain, wherein the fifth resource element is a resource element corresponding to at least one synchronization signal, and the synchronization signal is a signal contained in the SSB corresponding to the broadcast channel.

[0450] In one possible implementation, at least one first resource unit and the fifth resource unit satisfy any of the following: the center frequency of at least one first resource unit is the same as the center frequency of the fifth resource unit; the center frequency of at least one first resource unit has a second offset value with the center frequency of the fifth resource unit, and the sum of the bandwidth of the first resource set and the second offset value is less than or equal to the bandwidth threshold.

[0451] In one possible implementation, the first resource-related information satisfies at least one of the following: the first resource-related information is agreed upon by a protocol; the first resource-related information is indicated to the terminal by a first signal sent by the broadcast channel transmission device 400; the second resource-related information satisfies at least one of the following: the second resource-related information is agreed upon by a protocol; the second resource-related information is indicated to the terminal by a second signal sent by the broadcast channel transmission device 400; the second resource-related information is indicated by information carried by the broadcast channel transmitted on the first resource unit; wherein the first resource-related information includes at least one of the following: bandwidth, frequency domain location, and number; and the second resource-related information includes at least one of the following: bandwidth, frequency domain location, and number.

[0452] In one possible implementation, the information carried by the broadcast channel transmitted on the first resource unit in the first resource set is determined according to the first information, and the information carried by the broadcast channel transmitted on the second resource unit in the second resource set is determined according to the second information; the first information and the second information satisfy any of the following: both the first information and the second information are complete information of the system message; the first information is the first part of the system message corresponding to the first terminal type, and the second information is the information of the system message excluding the first part of the information; the first information includes the third part of the system message, and the second information is the complete information of the system message; the first information is the complete information of the system message, and the second information is preset information; wherein, the bandwidth supported by the terminal of the first terminal type is less than or equal to the bandwidth threshold.

[0453] In one possible implementation, when the lengths of the third part of the information and the complete information of the system message are different, the first information is determined based on the fifth information; wherein the fifth information is obtained by bit padding the third part of the information using predetermined bits.

[0454] In one possible implementation, the broadcast channel transmission apparatus 400 provided in this application embodiment may further include: a processing module. The processing module is configured to: perform at least one repetition operation on the encoded bitstream corresponding to at least a portion of the information of the system message; perform rate matching on at least one first bitstream obtained from the repetition based on the bandwidth of at least one resource unit in at least one resource set; and map each second bitstream obtained from the rate matching onto a corresponding resource unit; perform rate matching on the encoded bitstream corresponding to at least a portion of the information of the system message based on the bandwidth of each resource unit in at least one resource set; perform at least one repetition operation on the third bitstream obtained from the rate matching; and map each third bitstream obtained from the repetition onto a corresponding resource unit; and perform rate matching on the encoded bitstream corresponding to the complete information of the system message based on the bandwidth of the first resource set and the second resource set; and map the fourth bitstream obtained from the rate matching onto resource units in the first resource set and the second resource set.

[0455] In one possible implementation, the repetition method includes any of the following: bit-interleaved repetition or block-interleaved repetition.

[0456] In one possible implementation, the mapping method corresponding to the system message satisfies at least one of the following: the mapping method corresponding to the system message is agreed upon by the protocol; the mapping method corresponding to the system message is determined by at least one synchronization signal contained in the SSB corresponding to the broadcast channel; the mapping method corresponding to the system message is indicated by the fifth signaling received by the broadcast channel transmission device 400; the mapping method corresponding to the system message is determined by the position of the synchronization grid of the SSB; the mapping method corresponding to the system message is determined by the type of the synchronization grid of the SSB; the mapping method corresponding to the system message is determined by the assumed transmission period of the SSB; the mapping method corresponding to the system message is determined by the transmission period of the SSB; the mapping method corresponding to the system message is determined by the transmission timing of the SSB; the mapping method corresponding to the system message is determined by the index corresponding to the SSB; the mapping method corresponding to the system message is determined by the index group corresponding to the SSB; the mapping method corresponding to the system message is determined by the DMRS corresponding to the SSB; the mapping method corresponding to the system message is determined by the bandwidth type corresponding to the broadcast channel; the mapping method corresponding to the system message is determined by the frequency range corresponding to the broadcast channel; the mapping method corresponding to the system message is indicated to the terminal by the WUS sent by the broadcast channel transmission device 400; the mapping method corresponding to the system message is determined by the WUS request received by the broadcast channel transmission device 400.

[0457] The broadcast channel transmission device provided in this application embodiment can achieve... Figures 3 to 7 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0458] like Figure 10 As shown in the illustration, this application also provides a communication device 500, including a processor 501 and a memory 502. The memory 502 stores programs or instructions that can run on the processor 501. For example, when the communication device 500 is a terminal, the program or instructions executed by the processor 501 implement the various steps of the above-described broadcast channel transmission method embodiment and achieve the same technical effect. When the communication device 500 is a network-side device, the program or instructions executed by the processor 501 implement the various steps of the above-described broadcast channel transmission method embodiment and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0459] This application embodiment also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement, for example... Figures 3 to 5 The steps in the method embodiment shown are illustrated. This terminal embodiment corresponds to the above-described terminal-side method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and achieve the same technical effect. The terminal can be... Figure 8 The broadcast channel transmission device shown. Specifically, Figure 11 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0460] The terminal 600 includes, but is not limited to, at least some of the following components: radio frequency unit 601, network module 602, audio output unit 603, input unit 604, sensor 605, display unit 606, user input unit 607, interface unit 608, memory 609, and processor 610.

[0461] Those skilled in the art will understand that the terminal 600 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 610 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 11 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0462] It should be understood that, in this embodiment, the input unit 604 may include a graphics processor 6041 and a microphone 6042. The graphics processor 6041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 606 may include a display panel 6061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 607 includes at least one of a touch panel 6071 and other input devices 6072. The touch panel 6071 is also called a touch screen. The touch panel 6071 may include two parts: a touch detection device and a touch controller. Other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, power buttons, etc.), a trackball, a mouse, and a joystick, which will not be described in detail here.

[0463] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 601 can transmit it to the processor 610 for processing; in addition, the radio frequency unit 601 can send uplink data to the network-side device. Typically, the radio frequency unit 601 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0464] The memory 609 can be used to store software programs or instructions, as well as various data. The memory 609 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 609 may include volatile memory or non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 609 in this embodiment includes, but is not limited to, these and any other suitable types of memory.

[0465] Processor 610 may include one or more processing units; optionally, processor 610 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 610.

[0466] The radio frequency unit 601 is used to receive a broadcast channel on at least one of the first resource set and the second resource set, which are used for the transmission of the broadcast channel; wherein the first resource set and the second resource set overlap in the time domain but do not overlap in the frequency domain.

[0467] This application provides a terminal, which is a first terminal. Since the first terminal can receive a broadcast channel on at least one of the first and second resource sets, instead of receiving the broadcast channel on both sets, the first terminal can receive the broadcast channel on a single resource set when the receiving bandwidth is relatively small. In other words, the first terminal can receive the broadcast channel on a resource set with less bandwidth, rather than on the entire transmission resource of the broadcast channel. Therefore, the probability of the first terminal being unable to fully receive the information carried on the broadcast channel can be reduced, thereby improving the demodulation performance of the first terminal in demodulating the information carried on the broadcast channel. This further reduces the likelihood of the terminal being unable to determine the information carried on the broadcast channel, thus preventing the terminal from being unable to perform random access. Alternatively, the first terminal can receive the broadcast channel on both the first and second resource sets when the receiving bandwidth is relatively large. In other words, the first terminal can receive the broadcast channel on the entire transmission resource of the broadcast channel. Therefore, the amount of information carried on the broadcast channel received by the first terminal can be prevented from decreasing, thus ensuring the demodulation performance of the first terminal in demodulating the information carried on the broadcast channel. This further reduces the likelihood of the terminal being unable to determine the information carried on the broadcast channel, thus preventing the terminal from being unable to perform random access. This can improve the success rate of random access.

[0468] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the method embodiment and achieve the same or corresponding technical effect. To avoid repetition, it will not be described again here.

[0469] This application embodiment also provides a network-side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement, for example... Figure 6 The steps of the method embodiment shown are illustrated. This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this network-side device embodiment and can achieve the same technical effect.

[0470] Specifically, embodiments of this application also provide a network-side device, which can be... Figure 9 The broadcast channel transmission device shown is an example. Figure 12As shown, the network-side device 700 includes: an antenna 701, a radio frequency (RF) device 702, a baseband device 703, a processor 704, and a memory 705. The antenna 701 is connected to the RF device 702. In the uplink direction, the RF device 702 receives information through the antenna 701 and transmits the received information to the baseband device 703 for processing. In the downlink direction, the baseband device 703 processes the information to be transmitted and sends it to the RF device 702. The RF device 702 processes the received information and transmits it through the antenna 701.

[0471] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 703, which includes a baseband processor.

[0472] The baseband device 703 may, for example, include at least one baseband board on which multiple chips are disposed, such as... Figure 12 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 705 via a bus interface to call the program or instructions in the memory 705 to execute the network-side device operations shown in the above method embodiments.

[0473] The network-side device may also include a network interface 706, such as a Common Public Radio Interface (CPRI).

[0474] The radio frequency device 702 is used to transmit a broadcast channel on a first resource set and a second resource set, the first resource set and the second resource set being used for the transmission of the broadcast channel; wherein the first resource set and the second resource set overlap in the time domain but do not overlap in the frequency domain.

[0475] This application provides a network-side device. Since the network-side device can transmit broadcast channels on a first resource set and a second resource set, different terminals can receive broadcast channels on different resource sets. That is, a terminal with a smaller receiving bandwidth can receive broadcast channels on a resource set with less bandwidth, rather than receiving broadcast channels on the full transmission resources of the broadcast channel. Therefore, the probability of a terminal with a smaller receiving bandwidth failing to fully receive the information carried on the broadcast channel can be reduced, thereby improving the demodulation performance of the terminal with a smaller receiving bandwidth on the information carried on the broadcast channel. This further reduces the situation where a terminal with a smaller receiving bandwidth cannot determine the information carried on the broadcast channel, thus preventing the terminal with a smaller receiving bandwidth from being unable to perform random access. Alternatively, a terminal with a larger receiving bandwidth can receive broadcast channels on both the first and second resource sets. This means that the terminal with a larger receiving bandwidth can receive broadcast channels on the full transmission resources of the broadcast channel. Therefore, the amount of information carried on the broadcast channel received by the terminal with a larger receiving bandwidth is not reduced, thus ensuring the demodulation performance of the terminal with a larger receiving bandwidth on the information carried on the broadcast channel. This further reduces the situation where the terminal cannot determine the information carried on the broadcast channel, thus preventing the terminal from being unable to perform random access. This can improve the success rate of random access.

[0476] Furthermore, the network-side device 700 in this application embodiment also includes: a program or instructions stored in a memory 705 and executable on a processor 704, wherein the processor 704 calls the program or instructions in the memory 705 to execute. Figure 9 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0477] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described broadcast channel transmission method embodiments and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0478] The processor mentioned above is either the processor in the terminal described in the above embodiments or the processor in the network-side device. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0479] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described broadcast channel transmission method embodiment and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0480] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0481] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described broadcast channel transmission method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0482] This application also provides a wireless communication system, including a terminal and a network-side device. The terminal can be used to perform the steps of the broadcast channel transmission method described above, and the network-side device can be used to perform the steps of the broadcast channel transmission method described above.

[0483] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0484] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of computer software products plus necessary general-purpose hardware platforms, and of course, they can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.), and the computer software product includes several instructions to cause the terminal or network-side device to execute the methods described in the various embodiments of this application.

[0485] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other implementations under the guidance of this application without departing from the spirit and scope of the claims. All of these implementations are within the protection scope of this application.

Claims

1. A broadcast channel transmission method, characterized in that, include: A first terminal receives a broadcast channel on at least one of a first resource set and a second resource set, wherein the first resource set and the second resource set are used for the transmission of the broadcast channel; The first resource set and the second resource set overlap in the time domain but do not overlap in the frequency domain.

2. The method according to claim 1, characterized in that, The bandwidth of the first resource set is less than or equal to the bandwidth threshold, and the first resource set includes at least one first resource unit that is continuous in the frequency domain. The second resource set includes at least one second resource unit.

3. The method according to claim 2, characterized in that, At least one of the first resource units satisfies at least one of the following: At least one of the first resource units includes a third resource unit, wherein the third resource unit is the resource unit corresponding to the center carrier frequency of the synchronization signal block SSB corresponding to the broadcast channel; At least one of the first resource units and the fourth resource unit has a first offset value in the frequency domain, and the fourth resource unit includes at least one of the following: the starting resource unit of the broadcast channel, the starting resource unit of the SSB, and the resource unit corresponding to the reference frequency point.

4. The method according to claim 2 or 3, characterized in that, At least one of the first resource elements and the fifth resource element overlaps at least partially in the frequency domain, wherein the fifth resource element is a resource element corresponding to at least one synchronization signal, and the synchronization signal is a signal contained in the SSB corresponding to the broadcast channel.

5. The method according to claim 4, characterized in that, At least one of the following conditions is satisfied between the first resource unit and the fifth resource unit: At least one of the center frequencies of the first resource unit is the same as the center frequency of the fifth resource unit; At least one of the center frequency points of the first resource unit has a second offset value with the center frequency point of the fifth resource unit, and the sum of the bandwidth of the first resource set and the second offset value is less than or equal to the bandwidth threshold.

6. The method according to any one of claims 2 to 5, characterized in that, The first resource-related information of the first resource unit satisfies at least one of the following: The information related to the first resource is defined in the agreement; The first resource-related information is indicated by the first signal received by the first terminal; The second resource-related information of the second resource unit satisfies at least one of the following: The information related to the second resource is as agreed upon in the agreement; The second resource-related information is indicated by the second signal received by the first terminal; The second resource-related information is indicated by information carried by the broadcast channel received on the first resource unit; The first resource-related information includes at least one of the following: bandwidth, frequency domain location, and number; the second resource-related information includes at least one of the following: bandwidth, frequency domain location, and number.

7. The method according to any one of claims 1 to 6, characterized in that, The transmission type of the broadcast channel satisfies at least one of the following: The transmission type of the broadcast channel is defined by the protocol; The transmission type of the broadcast channel is determined by at least one synchronization signal contained in the SSB corresponding to the broadcast channel; The transmission type of the broadcast channel is indicated by the first signaling received by the first terminal; The transmission type of the broadcast channel is determined by the position of the synchronization grid of the SSB; The transmission type of the broadcast channel is determined by the type of the synchronization grid of the SSB; The transmission type of the broadcast channel is determined by the assumed transmission period of the SSB; The transmission type of the broadcast channel is determined by the transmission period of the SSB; The transmission type of the broadcast channel is determined by the transmission timing of the SSB; The transmission type of the broadcast channel is determined by the index corresponding to the SSB; The transmission type of the broadcast channel is determined by the index group corresponding to the SSB; The transmission type of the broadcast channel is determined by the DMRS corresponding to the SSB; The transmission type of the broadcast channel is determined by the bandwidth type corresponding to the broadcast channel; The transmission type of the broadcast channel is determined by the frequency range corresponding to the broadcast channel; The transmission type of the broadcast channel is indicated by the wake-up signal WUS received by the first terminal; The transmission type of the broadcast channel is indicated to the network-side device by the WUS request sent by the first terminal. The transmission type of the broadcast channel is indicated by the first reference signal received by the first terminal; The transmission type of the broadcast channel is indicated by the broadcast message received by the first terminal; The transmission type of the broadcast channel is indicated by the paging message received by the first terminal.

8. The method according to any one of claims 1 to 7, characterized in that, The first resource set and the second resource set satisfy at least one of the following: The first resource set and the second resource set are defined by the protocol; The first resource set and the second resource set are determined by at least one synchronization signal contained in the SSB corresponding to the broadcast channel; The first resource set and the second resource set are indicated by the second signaling received by the first terminal; The first resource set and the second resource set are determined by the position of the synchronization grid of the SSB; The first resource set and the second resource set are determined by the type of the synchronization grid of the SSB; The first resource set and the second resource set are determined by the assumed transmission period of the SSB; The first resource set and the second resource set are determined by the transmission period of the SSB; The first resource set and the second resource set are determined by the transmission timing of the SSB; The first resource set and the second resource set are determined by the index corresponding to the SSB; The first resource set and the second resource set are determined by the index group corresponding to the SSB; The first resource set and the second resource set are determined by the DMRS corresponding to the SSB; The first resource set and the second resource set are determined by the bandwidth type corresponding to the broadcast channel; The first resource set and the second resource set are determined by the frequency range corresponding to the broadcast channel; The first resource set and the second resource set are indicated by the WUS received by the first terminal; The first resource set and the second resource set are indicated to the network-side device by the WUS request sent by the first terminal; The first resource set and the second resource set are indicated by the second reference signal received by the first terminal; The first resource set and the second resource set are indicated by the broadcast message received by the first terminal; The first resource set and the second resource set are indicated by the paging message received by the first terminal.

9. The method according to any one of claims 1 to 8, characterized in that, When the terminal type of the first terminal is the first terminal type, the at least one resource set is the first resource set, and the bandwidth of the first resource set is less than or equal to the bandwidth threshold. When the terminal type of the first terminal is the second terminal type, the at least one resource set includes the first resource set and the second resource set; Wherein, the bandwidth supported by the first terminal type is less than or equal to the bandwidth threshold, and the bandwidth supported by the second terminal type is greater than the bandwidth threshold.

10. The method according to claim 9, characterized in that, The method further includes any one of the following: The first terminal determines the system message based on the information carried by the broadcast channel received on any resource unit in the at least one resource set; When the terminal type of the first terminal is the first terminal type, the first terminal determines the system message based on the information carried by the broadcast channel received on the first resource unit in the first resource set; When the terminal type of the first terminal is the second terminal type, the first terminal determines the system message based on the information carried by the broadcast channel received on the resource unit in the third resource set; The third resource set includes at least one of the following: the first resource set and the second resource set.

11. The method according to claim 10, characterized in that, The third resource set includes the first resource set and the second resource set; The first terminal determines system messages based on information carried by the broadcast channel received on resource units in the third resource set, including: The first terminal combines the information carried by the broadcast channel received on the resource units in the first resource set and the second resource set, and determines the system message based on the combined information.

12. The method according to claim 10, characterized in that, The information carried by the broadcast channel received on the first resource unit in the first resource set is determined based on the first information, and the information carried by the broadcast channel received on the second resource unit in the second resource set is determined based on the second information; The first information and the second information satisfy any one of the following: Both the first and second information are complete system message information; The first information is the first part of the system message corresponding to the first terminal type, and the second information is the information of the system message excluding the first part of the information; The first information includes the third part of the system message, and the second information is the complete information of the system message; The first information is the complete information of the system message, and the second information is the preset information.

13. The method according to claim 12, characterized in that, The first information and the second information have different lengths; the first information and the second information satisfy the condition that the first information includes the third part of the system message, and the second information is the complete information of the system message; The complete information of the system message satisfies any of the following: The complete information of the system message is determined by third-party information; The complete information of the system message is determined by the fourth piece of information; The complete information of the system message is determined by the third information and the first sub-information; Wherein, the third information is the information carried by the broadcast channel received on the first resource unit in the first resource set, the fourth information is the information carried by the broadcast channel received on the second resource unit in the second resource set, and the first sub-information is information in the fourth information that is different from the third information.

14. The method according to claim 12, characterized in that, The first information and the second information have the same length; the first information and the second information satisfy the condition that the first information includes the third part of the system message, and the second information is the complete information of the system message; If the first information is determined based on the fifth information, the system message is determined by the second sub-information and the third sub-information; The fifth information is obtained by bit-filling the third part of the information using predetermined bits. The second sub-information is the same information in the third and fourth information. The third information is the information carried by the broadcast channel received on the first resource unit in the first resource set. The fourth information is the information carried by the broadcast channel received on the second resource unit in the second resource set. The third sub-information is the information in the fourth information other than the second sub-information.

15. The method according to any one of claims 10 to 14, characterized in that, The method for determining the system message satisfies at least one of the following: The method for determining the system message is agreed upon by the protocol; The method for determining the system message is determined by at least one synchronization signal contained in the SSB corresponding to the broadcast channel; The method for determining the system message is indicated by the third signaling received by the first terminal; The method for determining the system message is determined by the position of the synchronization grid of the SSB; The method for determining the system message is determined by the type of the synchronization grid of the SSB; The method for determining the system message is determined by the assumed transmission period of the SSB; The method for determining the system message is determined by the transmission period of the SSB; The method for determining the system message is determined by the transmission timing of the SSB; The method for determining the system message is determined by the index corresponding to the SSB; The method for determining the system message is determined by the index group corresponding to the SSB; The method for determining the system message is determined by the DMRS corresponding to the SSB; The method for determining the system message is determined by the bandwidth type corresponding to the broadcast channel; The method for determining the system message is determined by the frequency range corresponding to the broadcast channel; The system message is determined by the WUS indication received by the first terminal; The method for determining the system message is indicated to the network-side device by the WUS request sent by the first terminal.

16. The method according to any one of claims 10 to 15, characterized in that, The method further includes: The first terminal determines the mapping method corresponding to the system message, and the mapping method corresponding to the system message includes any one of the following: The encoded bitstream corresponding to at least a portion of the information in the system message is repeated at least once, and the rate matching of at least one first bitstream obtained by the repetition is performed based on the bandwidth of at least one resource unit in the at least one resource set, and each second bitstream obtained by the rate matching is mapped onto the corresponding resource unit. Based on the bandwidth of each resource unit in the at least one resource set, rate matching is performed on the encoded bit stream corresponding to at least a portion of the information of the system message, and the rate-matched third bit stream is repeated at least once, and each of the repeated third bit streams is mapped onto the corresponding resource unit. Based on the bandwidth of the first resource set and the second resource set, rate matching is performed on the encoded bit stream corresponding to the complete information of the system message, and the fourth bit stream obtained by rate matching is mapped onto the resource units in the first resource set and the second resource set.

17. The method according to claim 16, characterized in that, The mapping method corresponding to the system message satisfies at least one of the following: The mapping method corresponding to the system messages is agreed upon by the protocol. The mapping method corresponding to the system message is determined by at least one synchronization signal contained in the SSB corresponding to the broadcast channel; The mapping method corresponding to the system message is indicated by the fourth signaling received by the first terminal; The mapping method corresponding to the system message is determined by the position of the synchronization grid of the SSB; The mapping method corresponding to the system message is determined by the type of the synchronization grid of the SSB; The mapping method corresponding to the system message is determined by the assumed transmission period of the SSB; The mapping method corresponding to the system message is determined by the transmission period of the SSB; The mapping method corresponding to the system message is determined by the transmission timing of the SSB; The mapping method corresponding to the system message is determined by the index corresponding to the SSB; The mapping method corresponding to the system message is determined by the index group corresponding to the SSB; The mapping method corresponding to the system message is determined by the DMRS corresponding to the SSB; The mapping method corresponding to the system message is determined by the bandwidth type corresponding to the broadcast channel; The mapping method corresponding to the system message is determined by the frequency range corresponding to the broadcast channel; The mapping method corresponding to the system message is indicated by the WUS received by the first terminal; The mapping method corresponding to the system message is indicated to the network-side device by the WUS request sent by the first terminal.

18. A broadcast channel transmission method, characterized in that, include: The network-side device transmits a broadcast channel on a first resource set and a second resource set, the first resource set and the second resource set being used for the transmission of the broadcast channel; The first resource set and the second resource set overlap in the time domain but do not overlap in the frequency domain.

19. The method according to claim 18, characterized in that, The bandwidth of the first resource set is less than or equal to the bandwidth threshold, and the first resource set includes at least one first resource unit that is continuous in the frequency domain. The second resource set includes at least one second resource unit.

20. The method according to claim 19, characterized in that, At least one of the first resource units satisfies at least one of the following: At least one of the first resource units includes a third resource unit, wherein the third resource unit is the resource unit corresponding to the center carrier frequency of the synchronization signal block SSB corresponding to the broadcast channel; At least one of the first resource units and the fourth resource unit has a first offset value in the frequency domain, and the fourth resource unit includes at least one of the following: the starting resource unit of the broadcast channel, the starting resource unit of the SSB, and the resource unit corresponding to the reference frequency point.

21. The method according to claim 19 or 20, characterized in that, At least one of the first resource elements and the fifth resource element overlaps at least partially in the frequency domain, wherein the fifth resource element is a resource element corresponding to at least one synchronization signal, and the synchronization signal is a signal contained in the SSB corresponding to the broadcast channel.

22. The method according to claim 21, characterized in that, At least one of the following conditions is satisfied between the first resource unit and the fifth resource unit: At least one of the center frequencies of the first resource unit is the same as the center frequency of the fifth resource unit; At least one of the center frequency points of the first resource unit has a second offset value with the center frequency point of the fifth resource unit, and the sum of the bandwidth of the first resource set and the second offset value is less than or equal to the bandwidth threshold.

23. The method according to any one of claims 19 to 22, characterized in that, The first resource-related information satisfies at least one of the following: The information related to the first resource is defined in the agreement; The first resource-related information is indicated to the terminal by a first signal sent by the network-side device; The second resource-related information satisfies at least one of the following: The information related to the second resource is as agreed upon in the agreement; The second resource-related information is indicated to the terminal by a second signal sent by the network-side device; The second resource-related information is indicated by information carried by the broadcast channel transmitted on the first resource unit; The first resource-related information includes at least one of the following: bandwidth, frequency domain location, and number; the second resource-related information includes at least one of the following: bandwidth, frequency domain location, and number.

24. The method according to any one of claims 19 to 23, characterized in that, The information carried by the broadcast channel transmitted on the first resource unit in the first resource set is determined according to the first information, and the information carried by the broadcast channel transmitted on the second resource unit in the second resource set is determined according to the second information; The first information and the second information satisfy any one of the following: Both the first and second information are complete system message information; The first information is the first part of the system message corresponding to the first terminal type, and the second information is the information of the system message other than the first part of the information; The first information includes the third part of the system message, and the second information is the complete information of the system message; The first information is the complete information of the system message, and the second information is preset information; Among them, the bandwidth supported by the terminal of the first terminal type is less than or equal to the bandwidth threshold.

25. The method according to claim 24, characterized in that, In cases where the lengths of the third part of the information and the complete information of the system message differ, the first information is determined based on the fifth information; The fifth piece of information is obtained by bit-filling the third part of the information using predetermined bits.

26. The method according to any one of claims 18 to 25, characterized in that, The method further includes any one of the following: The network-side device performs at least one repetition operation on the encoded bit stream corresponding to at least a portion of the information in the system message, and performs rate matching on at least one first bit stream obtained by repetition based on the bandwidth of at least one resource unit in the at least one resource set, and maps each second bit stream obtained by rate matching onto the corresponding resource unit. The network-side device performs rate matching on the encoded bit stream corresponding to at least a portion of the information in the system message based on the bandwidth of each resource unit in the at least one resource set, and performs at least one repeat operation on the third bit stream obtained by rate matching, and maps each of the repeated third bit streams onto the corresponding resource unit. The network-side device performs rate matching on the encoded bitstream corresponding to the complete information of the system message based on the bandwidth of the first resource set and the second resource set, and maps the fourth bitstream obtained by rate matching onto the resource units in the first resource set and the second resource set.

27. The method according to claim 26, characterized in that, The repeat operation can be performed in any of the following ways: bit-interleaved repeat operation or block-interleaved repeat operation.

28. The method according to claim 26 or 27, characterized in that, The mapping method corresponding to the system message satisfies at least one of the following: The mapping method corresponding to the system messages is agreed upon by the protocol. The mapping method corresponding to the system message is determined by at least one synchronization signal contained in the SSB corresponding to the broadcast channel; The mapping method corresponding to the system message is indicated by the fifth signaling received by the network-side device; The mapping method corresponding to the system message is determined by the position of the synchronization grid of the SSB; The mapping method corresponding to the system message is determined by the type of the synchronization grid of the SSB; The mapping method corresponding to the system message is determined by the assumed transmission period of the SSB; The mapping method corresponding to the system message is determined by the transmission period of the SSB; The mapping method corresponding to the system message is determined by the transmission timing of the SSB; The mapping method corresponding to the system message is determined by the index corresponding to the SSB; The mapping method corresponding to the system message is determined by the index group corresponding to the SSB; The mapping method corresponding to the system message is determined by the DMRS corresponding to the SSB; The mapping method corresponding to the system message is determined by the bandwidth type corresponding to the broadcast channel; The mapping method corresponding to the system message is determined by the frequency range corresponding to the broadcast channel; The mapping method corresponding to the system message is indicated to the terminal by the WUS sent by the network-side device; The mapping method corresponding to the system message is determined by the WUS request received by the network-side device.

29. A broadcast channel transmission device, characterized in that, The broadcast channel transmission device includes: a receiving module; The receiving module is configured to receive a broadcast channel on at least one of a first resource set and a second resource set, wherein the first resource set and the second resource set are used for the transmission of the broadcast channel; The first resource set and the second resource set overlap in the time domain but do not overlap in the frequency domain.

30. The apparatus according to claim 29, characterized in that, The bandwidth of the first resource set is less than or equal to the bandwidth threshold, and the first resource set includes at least one first resource unit that is continuous in the frequency domain. The second resource set includes at least one second resource unit.

31. The apparatus according to claim 30, characterized in that, The first resource-related information of the first resource unit satisfies at least one of the following: As agreed in the agreement; The first signal received by the broadcast channel transmission device indicates; The second resource-related information of the second resource unit satisfies at least one of the following: As agreed in the agreement; The second signal received by the broadcast channel transmission device indicates; Indicated by the information carried by the broadcast channel received on the first resource unit; The second resource-related information includes at least one of the following: bandwidth, frequency domain location, and number.

32. The apparatus according to any one of claims 29 to 31, characterized in that, When the terminal type of the first terminal is the first terminal type, the at least one resource set is the first resource set, and the bandwidth of the first resource set is less than or equal to the bandwidth threshold. When the terminal type of the first terminal is the second terminal type, the at least one resource set includes the first resource set and the second resource set; Wherein, the bandwidth supported by the first terminal type is less than or equal to the bandwidth threshold, and the bandwidth supported by the second terminal type is greater than the bandwidth threshold.

33. A broadcast channel transmission device, characterized in that, The broadcast channel transmission device includes: a transmission module; The transmitting module is configured to transmit a broadcast channel on at least one of a first resource set and a second resource set, wherein the first resource set and the second resource set are used for the transmission of the broadcast channel; The first resource set and the second resource set overlap in the time domain but do not overlap in the frequency domain.

34. The apparatus according to claim 33, characterized in that, The bandwidth of the first resource set is less than or equal to the bandwidth threshold, and the first resource set includes at least one first resource unit that is continuous in the frequency domain. The second resource set includes at least one second resource unit.

35. The apparatus according to claim 34, characterized in that, The first resource-related information of the first resource unit satisfies at least one of the following: As agreed in the agreement; The first signal transmitted by the broadcast channel transmission device indicates to the terminal; The second resource-related information of the second resource unit satisfies at least one of the following: As agreed in the agreement; The second signal transmitted by the broadcast channel transmission device indicates to the terminal; Indicated by the information carried by the broadcast channel transmitted on the first resource unit; The first resource-related information includes at least one of the following: bandwidth, frequency domain location, and number; the second resource-related information includes at least one of the following: bandwidth, frequency domain location, and number.

36. The apparatus according to any one of claims 33 to 35, characterized in that, The broadcast channel transmission device further includes: a processing module; The processing module is used for any of the following: The encoded bit stream corresponding to at least a portion of the information in the system message is repeated at least once, and the bandwidth of at least one resource unit in the at least one resource set is used to perform rate matching on at least one first bit stream obtained by repetition, and each second bit stream obtained by rate matching is mapped onto the corresponding resource unit. Based on the bandwidth of each resource unit in the at least one resource set, rate matching is performed on the encoded bit stream corresponding to at least a portion of the information of the system message, and the third bit stream obtained by rate matching is repeated at least once, and each of the repeated third bit streams is mapped onto the corresponding resource unit. Based on the bandwidth of the first resource set and the second resource set, rate matching is performed on the encoded bit stream corresponding to the complete information of the system message, and the fourth bit stream obtained by rate matching is mapped onto the resource units in the first resource set and the second resource set.

37. A terminal, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the broadcast channel transmission method as described in any one of claims 1 to 17.

38. A network-side device, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the broadcast channel transmission method as described in any one of claims 18 to 28.

39. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the broadcast channel transmission method as described in any one of claims 1 to 17, or implement the steps of the broadcast channel transmission method as described in any one of claims 18 to 28.

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