Signal receiving method and apparatus, signal sending method and apparatus, and device, chip and storage medium

Abstract

Provided in the present application are a signal sending method and apparatus, a signal receiving method and apparatus, and a device, a chip and a storage medium. The method comprises: a terminal device receives a synchronization signal block sent by a first network device, wherein the synchronization signal block comprises one or more of the following signals: a primary synchronization signal, a secondary synchronization signal, and a broadcast signal.

Description

Signal receiving methods, signal transmitting methods, devices, equipment, chips and storage media Technical Field

[0001] This application relates to the field of communication technology, specifically to a signal receiving method, a signal transmitting method, an apparatus, a device, a chip, and a storage medium. Background Technology

[0002] In practical applications, the Synchronization Signal / PBCH Block (SSB) is a mandatory signal. This means that the SSB cannot be omitted for network devices and must be continuously transmitted. However, continuously transmitting the SSB prevents network devices from fully entering sleep mode, resulting in higher power consumption. Summary of the Invention

[0003] This application provides a signal transmission method, a signal reception method, an apparatus, a device, a chip, and a storage medium.

[0004] Firstly, the signal receiving method provided in this application includes:

[0005] The terminal device receives a synchronization signal block sent by the first network device, the synchronization signal block including one or more of the following signals:

[0006] Master synchronization signal;

[0007] Auxiliary synchronization signal;

[0008] Broadcast signal.

[0009] Secondly, the signal transmission method provided in this application includes:

[0010] The first network device sends a synchronization signal block, the synchronization signal block including one or more of the following signals:

[0011] Master synchronization signal;

[0012] Auxiliary synchronization signal;

[0013] Broadcast signal.

[0014] Thirdly, the signal receiving device provided in this application is applied to a terminal device, and the device includes:

[0015] The first communication unit is configured to receive a synchronization signal block sent by a first network device, the synchronization signal block including one or more of the following signals:

[0016] Master synchronization signal;

[0017] Auxiliary synchronization signal;

[0018] Broadcast signal.

[0019] Fourthly, the signal transmitting device provided in this application is applied to a first network device, the device comprising:

[0020] The second communication unit is configured to transmit a synchronization signal block, the synchronization signal block including one or more of the following signals:

[0021] Master synchronization signal;

[0022] Auxiliary synchronization signal;

[0023] Broadcast signal.

[0024] The communication device provided in this application includes a memory, a processor, and a transceiver. The memory stores computer programs, and the processor calls and runs the computer programs stored in the memory to perform the signal transmission or signal reception methods described above in conjunction with the transceiver.

[0025] The chip provided in this application is used to implement the above-described signal transmission method or signal reception method.

[0026] Specifically, the chip includes a processor for calling and running a computer program from a memory, causing a device equipped with the chip to perform the signal transmission method or signal reception method described above.

[0027] The computer-readable storage medium provided in this application stores a computer program that, when executed by at least one processor, implements the above-described signal transmission method or signal reception method.

[0028] The computer program product provided in this application includes a computer program or instructions, which, when executed by a processor, implement the above-described signal transmission method or signal reception method.

[0029] The computer program provided in this application causes a computer to perform the above-described signal transmission method or signal reception method.

[0030] This application provides a signal transmission method and a signal reception method. In this method, a network device can selectively or adaptively transmit one or more of the following: PSS, SSS, and PBCH. That is, the network device can choose to transmit some of the sub-signals or transmit all of the sub-signals. In this way, the network device can flexibly transmit signals in the SSS, which can save power consumption of the network device. Attached Figure Description

[0031] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0032] Figure 1 is a schematic diagram of a communication architecture;

[0033] Figure 2 is a schematic diagram of a DRX transmission principle in related technologies;

[0034] Figure 3 is a schematic diagram of the structure of an SSB in the related technology;

[0035] Figures 4(a) to 4(e) are schematic diagrams of the structure of an SSB in the related technology.

[0036] Figures 5(a) to 5(e) are schematic diagrams of the structure of an SSB in the related technology.

[0037] Figure 6 is a schematic flowchart of a signal transmission method and a signal reception method provided in an embodiment of this application;

[0038] Figure 7 is a schematic diagram of an SSB structure provided in an embodiment of this application;

[0039] Figure 8 is a schematic diagram of an SSB structure provided in an embodiment of this application;

[0040] Figure 9 is a schematic diagram of an SSB structure provided in an embodiment of this application;

[0041] Figure 10 is a schematic flowchart of a signal transmission method and a signal reception method provided in an embodiment of this application;

[0042] Figure 11 is a schematic diagram of a detection signal and SSB structure provided in an embodiment of this application;

[0043] Figure 12 is a schematic diagram of the structural composition of a signal receiving device 1200 provided in an embodiment of this application;

[0044] Figure 13 is a schematic diagram of the structural composition of a signal transmitting device 1300 provided in an embodiment of this application;

[0045] Figure 14 is a schematic diagram of the structural composition of a communication device provided in an embodiment of this application;

[0046] Figure 15 is a schematic structural diagram of a chip provided in an embodiment of this application;

[0047] Figure 16 is a schematic block diagram of a communication system provided in an embodiment of this application. Detailed Implementation

[0048] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0049] Figure 1 is a schematic diagram of an application scenario of an embodiment of this application.

[0050] As shown in Figure 1, the communication system 100 may include a terminal device 110 and a network device 120. The network device 120 can communicate with the terminal device 110 via an air interface. Multi-service transmission is supported between the terminal device 110 and the network device 120.

[0051] It should be understood that the embodiments of this application are only illustrated by way of example with communication system 100, but the embodiments of this application are not limited thereto. That is to say, the technical solutions of the embodiments of this application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Internet of Things (IoT) system, Narrow Band Internet of Things (NB-IoT) system, enhanced Machine-Type Communications (eMTC) system, 5G communication system (also known as NR communication system), or future communication systems, etc.

[0052] In the communication system 100 shown in Figure 1, the network device 120 can be an access network device that communicates with the terminal device 110. The access network device can provide communication coverage for a specific geographical area and can communicate with the terminal device 110 located within that coverage area.

[0053] Network device 120 may be an evolved Node B (eNB or eNodeB) in an LTE system, or a Next Generation Radio Access Network (NG RAN) device, or a base station (gNB) in an NR system, or a radio controller in a Cloud Radio Access Network (CRAN), or network device 120 may be a relay station, access point, vehicle-mounted equipment, wearable device, hub, switch, bridge, router, or network equipment in a future evolved Public Land Mobile Network (PLMN), etc.

[0054] Terminal device 110 can be any terminal device, including but not limited to terminal devices that are connected to network device 120 or other terminal devices via wired or wireless connections.

[0055] For example, terminal equipment 110 can refer to an access terminal, user equipment (UE), user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent, or user device. An access terminal can be a cellular phone, cordless phone, Session Initiation Protocol (SIP) phone, IoT device, satellite handheld terminal, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA), handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, in-vehicle device, wearable device, terminal equipment in a 5G network, or terminal equipment in a future evolved network, etc.

[0056] Terminal device 110 can be used for device-to-device (D2D) communication.

[0057] Figure 1 illustrates an exemplary network device and two terminal devices. Optionally, the communication system 100 may include multiple network devices, and each network device may include other numbers of terminal devices within its coverage area. This application embodiment does not limit this.

[0058] It should be noted that Figure 1 is merely an example illustrating the system to which this application applies. Of course, the method shown in the embodiments of this application can also be applied to other systems. Furthermore, the terms "system" and "network" are often used interchangeably in this document.

[0059] In the following description, references are made to “some embodiments,” which describe a subset of all possible embodiments. However, it is understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0060] It should be understood that the terms "first, second, third" used in the embodiments of this application are only used to distinguish similar objects and do not represent a specific order of objects. It is understood that "first, second, third" can be interchanged in a specific order or sequence where permitted, so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.

[0061] It should also be understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0062] It should also be understood that the term "instruction" mentioned in the embodiments of this application can be a direct instruction, an indirect instruction, or an indication of a relationship. For example, A instructing B can mean that A directly instructs B, such as B being able to obtain information through A; it can also mean that A indirectly instructs B, such as A instructing C, so B can obtain information through C; or it can mean that there is a relationship between A and B.

[0063] It should also be understood that the term "correspondence" mentioned in the embodiments of this application may indicate a direct or indirect correspondence between the two, or an association between the two, or a relationship of instruction and being instructed, configuration and being configured, etc.

[0064] It should also be understood that the "predefined" or "predefined rules" mentioned in the embodiments of this application can be implemented by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices), and this application does not limit the specific implementation method. For example, predefined can refer to those defined in a protocol. It should also be understood that in the embodiments of this application, the "protocol" can refer to standard protocols in the field of communication, such as LTE protocol, NR protocol, and related protocols applied to future communication systems, and this application does not limit this.

[0065] To facilitate understanding of the technical solutions of the embodiments of this application, the relevant technologies of the embodiments of this application are described below. The following relevant technologies are optional solutions and can be combined with the technical solutions of the embodiments of this application in any way, and they all fall within the protection scope of the embodiments of this application.

[0066] 1) Discontinuous Reception (DRX).

[0067] To conserve power in terminal devices, existing systems all support the DRX transmission mechanism. The main principle of the DRX transmission mechanism is to achieve discontinuous signal reception in the time domain through semi-static configuration. When there is no data transmission, the reception of the Physical Downlink Control Channel (PDCCH) can be stopped to reduce power consumption, and blind detection of the PDCCH will be stopped at this time.

[0068] It should be noted that network devices can configure a DRX cycle for terminal devices in the Radio Resource Control (RRC) connected state (RRC_CONNECTED). Referring to the DRX transmission principle diagram shown in Figure 2, the DRX cycle can consist of an active time and an inactive time: during the "active time," the terminal device listens for and receives the PDCCH; during the "inactive time," the terminal device does not receive the PDCCH to reduce power consumption.

[0069] 2) DRX wake-up signal.

[0070] In the energy-saving enhancement of NR, the DRX ON duration (i.e., the duration of Active Time as shown in Figure 2) can also be used in conjunction with the wake-up signal mechanism.

[0071] Referring to the schematic diagram in Figure 2, the terminal device receives an instruction from the power-saving wake-up signal before the DRX ON duration. When the terminal device has data transmission in a DRX cycle, the power-saving wake-up signal "wakes up" the terminal device to detect the PDCCH during the DRX ON duration; otherwise, when the terminal device has no data transmission in a DRX cycle, the power-saving wake-up signal does not "wake up" the terminal device, and the terminal device does not need to detect the PDCCH during the DRX ON duration.

[0072] Compared to the existing DRX mechanism, when the terminal device is not transmitting data, it can omit PDCCH detection during the DRX ON duration, thus achieving energy savings. The time before the DRX ON duration is called the inactive time. The time during the DRX ON duration is called the active time.

[0073] It should be noted that the DRX wake-up signal can also use a similar waveform and structure to PDCCH.

[0074] 3) SSB of NR system.

[0075] During communication, the terminal obtains synchronization based on the synchronization signal (SS) sent by the network and then proceeds with subsequent data reception or transmission. It also obtains the master information block (MIB) based on the physical broadcast channel (PBCH) sent by the network. The NR network sends the synchronization signal and PBCH in the form of SS / PBCH blocks (SSB for short). The synchronization signal includes the primary synchronization signal (PSS) and the secondary synchronization signal (SSS).

[0076] Figure 3 is a schematic diagram of the SSB structure in related technologies. As shown in Figure 3, the SSB has a frequency domain size of 20 Physical Resource Blocks (PRBs) and occupies 4 Orthogonal Frequency Division Multiplexing (OFDM) symbols in the time domain. Specifically, the PSS and SSS are located in the first and third OFDM symbols, respectively, with a sequence length of 127, mapping to the middle 12 PRBs out of the 20 PRBs. The PBCH is located in the second and fourth OFDM symbols, as well as on some subcarriers in the third OFDM symbol. In the second and fourth OFDM symbols, the PBCH (including PBCH DMRS) is mapped to all subcarriers corresponding to the 20 PRBs (a total of 240 subcarriers). In the third OFDM symbol, the PBCH (including PBCH DMRS) is mapped to the four PRBs with the lowest frequency domain position and the four PRBs with the highest frequency domain position among the 20 PRBs.

[0077] To support high-speed data transmission, large bandwidth is typically used, placing higher demands on the hardware capabilities of terminal devices and consuming more power. When terminal devices do not require high-speed transmission, operating on a large bandwidth will consume excessive power. In such cases, the terminal devices can operate on a smaller bandwidth to achieve energy savings. For example, if the system bandwidth is 3MHz or 5MHz, the number of PRBs corresponding to this bandwidth is less than 20, requiring a new SS / PBCH structure. The maximum number of PRBs that can be supported for different channel bandwidths is related to the channel bandwidth and subcarrier spacing. The table below shows the maximum configurable transmission bandwidth (in terms of the number of PRBs, NRBs) for different subcarrier spacings (SCS). The first row of the table represents the channel bandwidth (from 3MHz to 100MHz), and the first column corresponds to the subcarrier spacing (SCS). N / A in the table indicates undefined or not supported.

[0078] Table 1

[0079] To support scenarios with system bandwidth less than 20 PRBs, the frequency domain resource size of the SSB can be reduced to 11 or 12 PRBs. These two different scenarios are described below.

[0080] Scenario 1: The frequency domain resource size of the SSB is 11 PRBs.

[0081] It should be understood that the SSB structure of Scenario 1 is applicable to all channel bandwidths (from 3MHz to 100MHz) in Table 1.

[0082] Figures 4(a) to 4(e) show five possible SSB structures. In the SSBs shown in Figures 4(a) to 4(e), the PSS and SSS sequence lengths are 127, which are mapped to 127 subcarriers in 11 PRBs. The total number of subcarriers included in the SS / PBCH block is 132. According to the frequency domain position from low to high, the subcarriers are denoted as index 0 to index 131.

[0083] In Figures 4(a) to 4(e), in the OFDM symbol containing the PSS, the subcarrier positions corresponding to the PSS are 2, 3, 4...126, 127, 128, while subcarriers 0, 1, 129, 130, 131 are set to 0; in the OFDM symbol containing the SSS, the subcarrier positions corresponding to the SSS are 2, 3, 4...126, 127, 128, while subcarriers 0, 1, 129, 130, 131 are set to 0; for OFDM symbols including the PBCH (including the PBCH DMRS), all of the 11 PRBs are used to map the PBCH, that is, the PBCH (including the PBCH DMRS) is mapped to subcarriers 0, 1, 2...130, 131. For Figure 4(a), a total of 22 PRBs are used to transmit the PBCH; for Figures 4(b), 4(c), 4(d), and (Figure 4e), a total of 44 PRBs are used to transmit the PBCH.

[0084] Scenario 2: The frequency domain resource size of the SSB is 12 PRBs.

[0085] It should be understood that the SSB structure of Scenario 1 applies to all channel bandwidths in Table 1 except those corresponding to the 11 PRBs.

[0086] It should be noted that the SSB in Scenario 2 occupies 12 PRBs of frequency domain resources. The sequence lengths of PSS and SSS are not changed. Furthermore, by increasing the number of symbols occupied by PBCH (e.g., 4 symbols), the number of PRBs occupied by PBCH (a total of 48 PRBs) is the same as the number of PRBs occupied by PBCH in the SSB structure shown in Figure 3, thus ensuring that PBCH has the same transmission resource size.

[0087] For example, referring to the five possible SSB structures shown in Figures 5(a) to 5(e), the PSS and SSS sequence lengths are 127, which are mapped to 127 subcarriers in 12 PRBs. The total number of subcarriers included in the SSB is 144, and the subcarriers with frequency domain positions from low to high are denoted as index 0 to index 143, respectively.

[0088] In Figures 5(a) to 5(e), in the OFDM symbol containing the PSS, the subcarrier positions corresponding to the PSS are 8, 9, 10...132, 133, 134, and the subcarrier positions 0, 1, 2, 3, 4, 5, 6, 7, 135, 136, 137, 138, 139, 140, 141, 142, 143 are set to 0; in the OFDM symbol containing the SSS, the subcarrier positions corresponding to the SSS are 8, 9, 10...132, 133, 134, and the subcarrier positions 0, 1, 2, 3, 4, 5, 6, 7, 135, 136, 137, 138, 139, 140, 141, 142, 143 are set to 0; for OFDM symbols including the PBCH (including the PBCH DMRS), all of the 12 PRBs are used to map the PBCH, that is, the PBCH (including the PBCH DMRS) is mapped to the PBCH. DMRS is mapped to subcarriers 0, 1, 2...142, 143. For Figure 5(a), a total of 24 PRBs are used for PBCH transmission, and for Figures 5(b), 5(c), 5(d), and 5(e), a total of 48 PRBs are used for PBCH transmission.

[0089] In current networks, the SSB (Service Switched Signal) is a mandatory signal. The SSB cannot be turned off, which prevents the network from fully entering sleep mode and results in high power consumption. Reducing network power consumption is a pressing technical problem that needs to be solved.

[0090] Based on this, embodiments of this application provide a signal transmission method and a signal reception method, wherein a network device can selectively or adaptively transmit one or more of PSS, SSS, and PBCH. That is, the network device can choose to transmit some of the sub-signals or transmit all of the sub-signals. This allows the network device to flexibly transmit sub-signals from the SSS, saving network device power consumption.

[0091] To facilitate understanding of the technical solutions of the embodiments of this application, the technical solutions of this application are described in detail below through specific embodiments. The above-mentioned related technologies are optional solutions and can be arbitrarily combined with the technical solutions of the embodiments of this application, all of which fall within the protection scope of the embodiments of this application. The embodiments of this application include at least some of the following contents.

[0092] It should be noted that the synchronization signal block mentioned in the embodiments of this application can be understood as the Synchronization Signal / PBCH Block (SSB).

[0093] It should also be noted that the time-domain symbols mentioned in the embodiments of this application can be OFDM symbols or Single-carrier Frequency-Division Multiple Access (SC-FDMA) symbols, and the embodiments of this application do not limit them.

[0094] It should be noted that the “time domain symbol occupied by PSS” mentioned in the embodiments of this application can be equivalently replaced with “PSS symbol”, “time domain symbol where PSS is located”, “time domain symbol of PSS”, “OFDM symbol where PSS is located”, and “OFDM symbol of PSS”.

[0095] It should be noted that the “time domain symbol occupied by SSS” mentioned in the embodiments of this application can be equivalently replaced with “SSS symbol”, “time domain symbol where SSS is located”, “time domain symbol of SSS”, “OFDM symbol where SSS is located”, and “OFDM symbol of SSS”.

[0096] It should be noted that the "time domain symbol occupied by the MIB" mentioned in the embodiments of this application can be equivalently replaced with "MIB symbol", "time domain symbol where the MIB is located", "time domain symbol of the MIB", "OFDM symbol where the MIB is located", and "OFDM symbol of the MIB".

[0097] It should also be noted that the “number of subcarriers” mentioned in the embodiments of this application can also be called the “number of resource elements (REs)”, and the two are equivalent or interchangeable.

[0098] It should also be noted that the signal transmission method provided in this application embodiment is used for network devices, and the signal reception method provided in this application embodiment is used for terminal devices.

[0099] Figure 6 is a flowchart illustrating a signal transmission / reception method according to an embodiment of this application. As shown in Figure 6, the method may include:

[0100] S610: The network device sends an SSB, and the corresponding terminal device receives the SSB. The SSB includes one or more of the following signals: PSS, SSS, and PBCH.

[0101] It should be noted that PSS, SSS, and PBCH can all be understood as or equivalent to the sub-signals of SSB. PSS can also be called the primary synchronization sub-signal, SSS can also be called the secondary synchronization sub-signal, and PBCH can also be called the broadcast sub-signal.

[0102] In some embodiments, the PSS can be used to carry first cell identification information. Alternatively, the information carried by the PSS may include first cell identification information.

[0103] It should be noted that the first cell identifier information can be all or part of the identifier information of the cell associated with the network device sending the SSB. In other words, the first cell identifier information can be the cell ID or a part of the cell ID. For example, the first cell identifier information can be the lower three bits of the cell ID.

[0104] It should also be noted that the identification information of the first cell can be carried by a sequence, or in other words, the identification information of the first cell can be represented by a sequence.

[0105] In some embodiments, the SSS can be used to carry second cell identification information. In other words, the information carried by the SSS may include second cell identification information.

[0106] It should be noted that the second cell identification information can be all or part of the identification information of the cell associated with the network device sending the SSB. In other words, the second cell identification information can be the cell ID or a part of the cell ID. For example, the second cell identification information can be the high three bits of the cell ID.

[0107] It should also be noted that the second cell identification information can be carried by a sequence, or in other words, the second cell identification information can be represented by a sequence.

[0108] In some embodiments, the PBCH can be used to carry configuration parameters of the cell associated with the network device, and is generated by channel coding and OFDM modulation.

[0109] In this embodiment, the SSB sent by the network device can be understood as an adaptive SSB. Specifically, the network device can choose to send one or more sub-signals from PSS, SSS, and PBCH.

[0110] Correspondingly, the terminal device can detect the SSBs selectively sent by the network device. The SSBs detected by the terminal device may include one sub-signal, two sub-signals, or three sub-signals.

[0111] In one possible implementation, the network device can selectively transmit a sub-signal, meaning that the SSB may include only one sub-signal. For example, the SSB may include only the PSS; another example is that the SSB may include only the SSS; yet another example is that the SSB may include only the PBCH.

[0112] In another possible implementation, the network device can selectively transmit two sub-signals; that is, the SSB can include two sub-signals. For example, the SSB can include PSS and SSS. Yet another example is that the SSB can include PSS and PBCH, and still another example is that the SSB can include SSS and PBCH.

[0113] In another possible implementation, the network device can selectively send three sub-signals, that is, the SSB can include three sub-signals: PSS, SSS and PBCH.

[0114] It should be understood that in the embodiments of this application, the network device may selectively or adaptively transmit one or more of PSS, SSS, and PBCH. For example, the network device may selectively transmit partial signals when sleep mode or energy saving is required; and transmit all partial signals when a more complete and comprehensive communication service is needed. The network device can flexibly transmit partial signals from the SSS, thereby saving network device power consumption.

[0115] In one example, when a network device needs to sleep, it can send only a PSS (Physical Subscription Segment). Referring to the SSB structure diagrams shown in Figures 7 to 9, in this embodiment of the application, an SSB that includes only a PSS is referred to as a sleeping SSB.

[0116] In one example, network devices can send PSS and SSS when energy saving is required. Referring to the SSB structure diagrams shown in Figures 7 to 9, in this embodiment of the application, an SSB that only includes PSS is called a dormant SSB.

[0117] In one example, when a network device needs to provide more complete and comprehensive communication services, it can send PSS, SSS, and PBCH. Referring to the SSB structure diagrams shown in Figures 7 to 9, this embodiment of the application refers to this type of SSB as a regular SSB.

[0118] The following describes the signal structure of the adaptive SSB provided in the embodiments of this application.

[0119] It should be noted that SSBs can be transmitted on specific resources (including time-domain resources and / or frequency-domain resources) within the synchronization channel period. Accordingly, the terminal equipment can detect SSBs on those specific resources within the synchronization channel period.

[0120] For example, the SSB can be transmitted over M frequency domain units and N time domain units within a synchronization channel period. M and N are both integers greater than or equal to 1.

[0121] It should be noted that the frequency domain unit can be one or more of PRB, subcarrier, and subcarrier group, and the embodiments of this application do not limit this. The time domain unit can be one or more of OFDM symbol, OFDM symbol group, and microslot, and the embodiments of this application do not limit this.

[0122] In some embodiments, the value of M can be less than or equal to 20 (in PRB) or 144 (in subcarriers), and the value of N can be greater than or equal to 4 (in OFDM symbols).

[0123] For example, an SSB can be transmitted over 20 PRBs and 4 OFDM symbols within a synchronization channel period. For instance, the SSB shown in Figure 9.

[0124] For example, an SSB can be transmitted over 12 PRBs and 4 OFDM symbols within a synchronization channel period. Examples of SSBs shown in Figures 5(a), 7, and 8 are examples.

[0125] For example, an SSB can be transmitted over 12 PRBs and 6 OFDM symbols within a synchronization channel period. For instance, the SSBs shown in Figures 5(b) to 5(e).

[0126] For example, an SSB can be transmitted over 11 PRBs and 4 OFDM symbols within a synchronization channel period. For example, the SSB shown in Figure 4(a).

[0127] For example, an SSB can be transmitted over 11 PRBs and 6 OFDM symbols within a synchronization channel period. For instance, the SSBs shown in Figures 4(b) to 4(e).

[0128] In some embodiments, in order to reduce the complexity of terminal device detection, the bandwidth of the SSB may be less than or equal to a first threshold.

[0129] For example, the first threshold can be 12 PRBs or 3 MHz. That is, in the above embodiments, the value of M can be less than or equal to 12 (in PRBs). Referring to the SSB structure diagrams shown in Figures 5, 7, and 8, the bandwidth of the SSB can be 12 PRBs. Referring to the SSB structure diagram shown in Figure 4, the bandwidth of the SSB can be 11 PRBs.

[0130] It should be understood that different sub-signals in the SSB can be transmitted on at least some of the aforementioned specific resources.

[0131] In some embodiments, each sub-signal in the SSB may occupy one or more frequency domain units, and / or, each sub-signal in the SSB may occupy one or more time domain units.

[0132] For example, the PSS can be transmitted on m1 frequency domain units out of M frequency domain units, and / or on n1 time domain units out of N time domain units, where m1 is an integer less than or equal to M and n1 is an integer less than or equal to N.

[0133] For example, SSS can be transmitted on m2 frequency domain units out of M frequency domain units, and / or on n2 time domain units out of N time domain units, where m2 is an integer less than or equal to M and n2 is an integer less than or equal to N.

[0134] For example, the PBCH can be transmitted on m3 frequency domain units out of M frequency domain units, and / or on n3 time domain units out of N time domain units, where m3 is an integer less than or equal to M and n3 is an integer less than or equal to N.

[0135] It should be noted that, in one implementation, the number of frequency domain units occupied by each sub-signal in the SSB is the same, that is, m1 = m2 = m3. In another implementation, at least some of the sub-signals in the SSB occupy different numbers of frequency domain units, that is, two or more of m1, m2, and m3 have different values. For example, m1 equals m2 but not m3; m1 equals m3 but not m2; m2 equals m3 but not m1; or all of m1, m2, and m3 have different values.

[0136] It should also be noted that, in one implementation, the number of time-domain units occupied by each sub-signal in the SSB is the same, that is, n1 = n2 = n3. In another implementation, at least some of the sub-signals in the SSB occupy different numbers of time-domain units. That is, two or more of n1, n2, and n3 have different values. For example, n1 equals n2 but not n3; n1 equals n3 but not n2; n2 equals n3 but not n1; or all of n1, n2, and n3 have different values.

[0137] In the embodiments of this application, different sub-signals in the SSB are frequency-division multiplexed and / or time-division multiplexed.

[0138] In one possible implementation, different sub-signals in the SSB are frequency-division multiplexed, or in other words, the multiplexing feature of different sub-signals in the SSB is frequency division.

[0139] It should be understood that when different sub-signals in an SSB are frequency-division multiplexed, different sub-signals can occupy different frequency domain units. That is, the m1 frequency domain units for transmitting the PSS, the m2 frequency domain units for transmitting the SSS, and the m3 frequency domain units for transmitting the PBCH are different frequency domain units.

[0140] It should also be understood that when different sub-signals in an SSB are frequency-division multiplexed, some or all of the sub-signals in the SSB can occupy the same time-domain units. That is, the n1 time-domain units for transmitting the PSS, the n2 time-domain units for transmitting the SSS, and the n3 time-domain units for transmitting the PBCH can be the same or partially the same.

[0141] For example, referring to the SSB structure diagram shown in Figure 7, within the bandwidth of 12 PRBs in the synchronization channel period, different sub-signals in the SSB occupy different frequency domain units.

[0142] It should be noted that when different sub-signals in an SSB are frequency-division multiplexed, a first number of frequency domain units can be spaced between them. Understandably, to avoid mutual interference between different sub-signals during frequency-division multiplexing, a guard interval (i.e., a first number of frequency domain units) needs to be set between the frequency domain units occupied by different sub-signals. For example, the first number of frequency domain units can be one or more subcarriers. The value of the first number can be predefined by the protocol.

[0143] It should also be noted that the positions of the frequency domain units occupied by different sub-signals in the SSB can be as shown in Figure 7, with SSS at a high frequency, PSS at a middle frequency, and PBCH at a low frequency. The positions of the frequency domain units occupied by different sub-signals in the SSB are not limited to those shown in Figure 7. For example, PSS can be at a high frequency, SSS at a middle frequency, and PBCH at a low frequency; or, SSS can be at a high frequency, PBCH at a middle frequency, and PSS at a low frequency.

[0144] In another possible implementation, different sub-signals in the SSB are time-division multiplexed, or in other words, the multiplexing feature of different sub-signals in the SSB is time-division.

[0145] It should be understood that when different sub-signals in an SSB are time-division multiplexed, some or all of the sub-signals in the SSB can occupy the same frequency domain units. That is, the m1 frequency domain units for transmitting the PSS, the m2 frequency domain units for transmitting the SSS, and the m3 frequency domain units for transmitting the PBCH are the same or partially the same.

[0146] It should also be understood that when different sub-signals in the SSB are time-division multiplexed, the different sub-signals in the SSB can occupy different time-domain units. That is, the n1 time-domain units for transmitting the PSS, the n2 time-domain units for transmitting the SSS, and the n3 time-domain units for transmitting the PBCH are different time-domain units.

[0147] For example, referring to the SSB structure diagram shown in Figure 8, different sub-signals in the SSB occupy different symbols within a specific symbol period of the synchronization channel.

[0148] It should be noted that when different sub-signals in an SSB are time-division multiplexed, a second number of time-domain units can be spaced between them (e.g., PSS and SSS). Understandably, when different sub-signals in an SSB are frequency-division multiplexed, a guard interval (i.e., a second number of time-domain units) needs to be set between the time-domain units occupied by different sub-signals to avoid mutual interference. For example, the second number of frequency-domain units can be one or more OFDM symbols. The value of the second number can be predefined by the protocol.

[0149] It should also be noted that the positions of the time-domain units occupied by different sub-signals in the SSB can be as shown in Figure 8, where the PSS occupies the 0th OFDM symbol, the SSS occupies the 2nd OFDM symbol, or the PSS occupies the 1st and 3rd OFDM symbols. It should be understood that the positions of the time-domain units occupied by different sub-signals in the SSB are not limited to those shown in Figure 8. For example, the PSS can occupy the 1st OFDM symbol, the SSS occupies the 3rd OFDM symbol, and the PBCH occupies the 0th and 2nd OFDM symbols; or, the PSS can occupy the 3rd OFDM symbol, the SSS occupies the 0th OFDM symbol, and the PBCH occupies the 1st and 2nd OFDM symbols; or, the PSS can occupy the 3rd OFDM symbol, the SSS occupies the 0th OFDM symbol, and the PBCH occupies the 1st and 2nd OFDM symbols, etc. These will not be listed in detail here.

[0150] In another possible implementation, different sub-signals in the SSB can be frequency-division multiplexed and time-division multiplexed simultaneously; in other words, the multiplexing characteristics of different sub-signals in the SSB are frequency-division and time-division.

[0151] It should be understood that in this implementation, the m1 frequency domain units for transmitting PSS, the m2 frequency domain units for transmitting SSS, and the m3 frequency domain units for transmitting PBCH are the same or partially the same. Furthermore, the n1 time domain units for transmitting PSS, the n2 time domain units for transmitting SSS, and the n3 time domain units for transmitting PBCH are different time domain units.

[0152] For example, referring to Figure 9, PSS and SSS in SSB and PBCH are time-division multiplexed, and SSS and PBCH are frequency-division multiplexed on the second OFDM symbol.

[0153] It should be noted that for two frequency-division multiplexed signals (e.g., SSS and PBCH on the second time-domain symbol in Figure 9), a first number of frequency domain units can be spaced between them. For two time-division multiplexed signals (e.g., PSS and SSS as shown in Figure 9), a second number of time-domain units can be spaced between them. The first number of frequency domain units can be one or more subcarriers. The value of the first number can be predefined by the protocol. The second number of frequency domain units can be one or more OFDM symbols. The value of the second number can be predefined by the protocol.

[0154] It should also be noted that the positions of the frequency and time domain units occupied by different sub-signals in the SSB can be as shown in Figure 9. The PSS occupies the 0th OFDM symbol, the SSS occupies the 2nd OFDM symbol, and the PSS occupies the 1st to 3rd OFDM symbols. Furthermore, the SSS and PBCH are frequency-division multiplexed on the 2nd symbol. It should be understood that the positions of the time domain units occupied by different sub-signals in the SSB are not limited to those shown in Figure 9. For example, the PSS can occupy the 1st OFDM symbol, the SSS can occupy the 3rd OFDM symbol, and the PBCH can occupy the 0th, 2nd, and 3rd OFDM symbols. Moreover, the SSS and PBCH are frequency-division multiplexed on the 3rd symbol, etc. These will not be listed here.

[0155] In the method provided in this application embodiment, the network device can transmit an adaptive SSB. The adaptive SSB occupies less bandwidth and can transmit for a longer time, thus transmitting signals with comparable coverage to a regular SSB using less power.

[0156] The following describes the operations performed when the terminal device detects different SSBs.

[0157] In one embodiment of this application, referring to FIG10, after step S610, the following steps may be included:

[0158] S620, The terminal device sends a first signal, which is related to the sub-signals included in the synchronization signal block.

[0159] In some embodiments, the first signal may include one or more of the following A) to C):

[0160] A) Access signal;

[0161] B) Wake-up signal;

[0162] C) Signals carrying SSB measurement results.

[0163] It should be noted that the access signal in option A) is used to access the network device that sent the SSB. The wake-up signal in option B) can be used to wake up the network device that sent the SSB. The signal carrying the SSB measurement result in option C) can be used to determine whether to wake up the network device that sent the SSB.

[0164] It should be understood that when an SSB includes different sub-signals, the terminal device can perform different operations. Specifically, the terminal device can receive an SSB and, based on the sub-signals contained in the SSB, send a first signal associated with the sub-signals in the SSB.

[0165] The operation of the terminal device will be introduced in different scenarios below.

[0166] Scenario A: When the SSB includes both PSS and SSS, the first signal can be the access signal.

[0167] It should be understood that when a terminal device detects that the SSB includes PSS and SSS, that is, when the SSB includes the complete cell ID (e.g., including PSS and SSS, or PSS, SSS and PBSCH), it can send an access signal to the network device that sent the SSB (referred to as the first network device in this application embodiment) to request access to the first network device.

[0168] For example, when a terminal device detects that an SSB includes a PSS and an SSS (e.g., the energy-saving SSB shown in Figures 7 to 9), it can send an access signal to the first network device that sent the SSB and request access to the first network device.

[0169] For example, when a terminal device detects that the SSB includes PSS, SSS, and PBCH (e.g., the ordinary SSB shown in Figures 7 to 9), it can send an access signal to the first network device that sent the SSB and request access to the first network device.

[0170] In scenario B, where SSB includes PSS or SSS, the first signal can be a wake-up signal.

[0171] It should be understood that when a terminal device detects that the SSB includes a PSS or SSS, that is, when the SSB only includes part of the cell ID, it can be assumed that the network device that sent the SSB is in a dormant state. At this time, the terminal device can send a wake-up signal.

[0172] For example, when a terminal device detects that the SSB only includes a PSS (e.g., the dormant SSB shown in Figures 7 to 9), it can send a wake-up signal to wake up the network device that sent the SSB.

[0173] It should also be understood that the awakened network device can exit the sleep state and send an SSB including the complete cell ID (such as the energy-saving SSB or ordinary SSB shown in Figures 7 to 9).

[0174] It should be noted that when a terminal device detects that the SSB only includes a portion of the cell ID, it can decide whether to wake up the network device that sent the SSB. For example, the terminal device can decide whether to wake up the network device that sent the SSB based on its own movement trajectory or the signal quality of the serving cell. When the terminal device needs to wake up the network device, it can send a wake-up signal to the network to wake up the network device corresponding to the SSB.

[0175] In scenario B, the terminal device can send wake-up signals to different network devices. The following sections will introduce different sub-scenarios.

[0176] In scenario B1, when the terminal device detects that the SSB includes a PSS or SSS, the terminal device can send a wake-up signal to the network device that sent the SSB (in this embodiment, the network device is referred to as the first network device) to wake up the first network device, so that it exits the sleep state and sends an SSB including the complete cell ID (such as the energy-saving SSB or ordinary SSB shown in Figures 7 to 9).

[0177] For example, when a terminal device performs initial access, if the terminal device detects that the SSB only includes a PSS (e.g., a dormant SSB as shown in Figures 7 to 9), it can directly send a wake-up signal to the network device that sent the SSB, requesting the network device to send a normal SSB to provide complete cell configuration parameters for access.

[0178] It should be noted that the terminal device can send a wake-up signal to the network device that sent the SSB on resources predefined in the protocol or resources determined by the terminal device according to preset rules. For example, the resource on which the terminal device sends the wake-up signal can be separated from the resource on which the SSB is transmitted by a certain time-domain resource and / or frequency-domain resource.

[0179] Scenario B2: When a terminal device detects that the SSB includes a PSS or SSS, it can send a wake-up signal to the network device corresponding to the serving cell of the terminal device (referred to as the second network device in this embodiment of the application) to request the second network device to wake up the first network device that sent the SSB.

[0180] For example, when a terminal device detects that the SSB only includes a PSS (e.g., the dormant SSB shown in Figures 7 to 9), it can send a wake-up signal to the second network device of the serving cell, requesting the first network device of the serving cell to wake up the first network device of the neighboring cell corresponding to the SSB.

[0181] It should be noted that in scenario B2, the terminal device can send a wake-up signal to the second network device. This wake-up signal can be carried through the PUCCH or PUSCH configured on the second network device, and this embodiment does not impose any restrictions on this.

[0182] It should also be noted that in scenario B2, the wake-up signal sent by the terminal device to the second network device of the serving cell can be associated with the SSB; more specifically, the wake-up signal sent by the terminal device to the serving cell can be associated with the cell ID. In this way, after receiving the wake-up signal, the second network device of the serving cell can wake up the network device of the corresponding cell based on the cell ID associated with the wake-up signal.

[0183] The wake-up signal is associated with the SSB and may carry the cell ID carried in the SSB. For example, when the SSB includes the PSS, the wake-up signal may carry the first cell identifier information; when the SSB includes the SSS, the wake-up signal may carry the second cell identifier information.

[0184] In scenario C, where the SSB includes either a PSS or an SSS, the first signal can be a signal carrying the measurement result of the SSB.

[0185] It should be understood that when a terminal device detects that the SSB includes a PSS or SSS, that is, when the SSB only includes a portion of the cell ID, the first network device that sent the SSB can be considered to be in a dormant state. At this time, the terminal device can send a signal carrying the SSB measurement result to the second network device serving the cell so that the second network device can determine whether it is necessary to wake up the first network device that sent the SSB.

[0186] It should be noted that the terminal device can measure the SSB sent by the first network device and obtain the measurement result corresponding to the SSB.

[0187] The measurement results corresponding to SSB may include one or more of the following:

[0188] Reference Signal Received Power (RSRP);

[0189] Signal-to-interference-plus-noise ratio (SINR);

[0190] Reference Signal Received Quality (RSRQ).

[0191] It should also be noted that, in scenario C, the terminal device can send the measurement result corresponding to the SSB to the second network device. The measurement result corresponding to the SSB can be carried through the PUCCH or PUSCH configured on the second network device; this embodiment does not impose any restrictions on this.

[0192] In scenario C, the SSB measurement result sent by the terminal device to the second network device can be associated with the SSB. More specifically, the SSB measurement result sent by the terminal device to the second network device can be associated with the cell ID. Thus, after receiving the SSB measurement result, the second network device can determine whether to wake up the network device corresponding to the cell ID associated with that measurement result based on the measurement result.

[0193] It should be noted that the second network device can decide whether to wake up the network device (i.e., the first network device) of the neighboring cell based on the SSB measurement results of the neighboring cell reported by the terminal device.

[0194] For example, if the terminal device reports SSB measurement results of multiple neighboring cells, the second network device can wake up the network device of the neighboring cell with the best SSB measurement result, or wake up the network devices of multiple neighboring cells whose SSB measurement results meet the conditions.

[0195] It should be understood that when the second device decides that it needs to wake up the first network device, it can send a wake-up signal to the first network device to wake it up, so that the first network device sends an SSB including the complete cell ID (such as the energy-saving SSB or ordinary SSB shown in Figures 7 to 9).

[0196] In scenario D, where the SSB includes either a PSS or an SSS, the first signal may include a wake-up signal and a signal carrying the measurement result of the SSB.

[0197] It should be understood that when a terminal device detects that the SSB includes the PSS or SSS, that is, when the SSB only includes part of the cell ID, the first network device that sent the SSB can be considered to be in a dormant state. At this time, the terminal device can send a wake-up signal to the second network device serving the cell, as well as a signal carrying the measurement result of the SSB.

[0198] The wake-up signal can be used to indicate to the terminal device that it expects to wake up the first network device that sent the SSB. Additionally, the signal carrying the SSB measurement result can provide the second device with a reference regarding whether to wake up the first network device. In other words, the terminal device expects to wake up the first network device, but whether or not to actually wake it up can be determined by the second network device based on the SSB measurement result.

[0199] It should be noted that the description of the wake-up signal can be found in Scenario B2, and the description of the SSB measurement results can be found in Scenario C. For the sake of brevity, they will not be repeated here.

[0200] It should be understood that in the signal transmission / reception method provided in this application embodiment, the terminal device can determine the feedback mode based on the sub-signals included in the received SSB. Correspondingly, the network device can decide whether to exit the sleep state based on the different feedback modes of the terminal device. In this way, the state of the network device can be flexibly adjusted, which can save a lot of network device power consumption.

[0201] The following describes the information delivery methods of PSS and / or SSS.

[0202] In this embodiment of the application, as described above, the PSS can be used to carry the first cell identification information, the SSS can be used to carry the second cell identification information, and the information carried by the PBCH includes the configuration parameters of the cell associated with the first network device.

[0203] In some embodiments, the PSS carries information in a sequence manner.

[0204] In some embodiments, the first cell identification information in the PSS can be represented by a first sequence. The first sequence is carried on one or more frequency domain cells occupied by the PSS, and / or one or more time domain cells occupied by the PSS.

[0205] It should be noted that the first sequence mapping can be done in either the frequency domain first and then the time domain, or in either the time domain first and then the frequency domain. This application does not impose any restrictions on this.

[0206] In some embodiments, the first sequence may be an m-sequence, a gold sequence, a ZC sequence, or other real or complex sequences, and this application does not limit this.

[0207] In some embodiments, the PSS can select a first sequence to represent the first cell identification information by sequence selection.

[0208] Specifically, the first sequence can be one of multiple third sequences, and the index value of the first sequence in the multiple third sequences is associated with the first cell identification information.

[0209] It should be understood that a third sequence can refer to a candidate sequence. A network device can select one sequence from multiple third sequences based on its own first cell identifier information. The index value of the first sequence among the multiple third sequences can be determined based on the first cell identifier information.

[0210] For example, the index values ​​of multiple third sequences can correspond one-to-one with cell identification information. That is, one index value corresponds to one cell identification information, and different index values ​​correspond to different cell identification information.

[0211] For example, the index values ​​of multiple third sequences can correspond to cell identification information groups. That is, one index value can correspond to multiple cell identification information groups. The index value can be the result of modulo division of the cell identification information ID and parameter C1, where parameter C1 can be the total number of third sequences.

[0212] It should be noted that the index value can also be understood as a sequence number. The sequence number of the first sequence can refer to the order of the first sequence among multiple third sequences.

[0213] In some embodiments, multiple third sequences can be obtained by cyclically shifting a first initial sequence, and different third sequences correspond to different cyclic shift values.

[0214] For example, taking an m-sequence of length 127 as an example, the first initial sequence s (k＝0) (n) can be determined based on the following formula (1): s (k) (n)=x((n+k)mod 127) Formula (1)

[0215] The value of n ranges from 1 to 127. When n = 1 to n = 6, the values ​​of x(n) are: x(0) = 1, x(1) = 1, x(2) = 1, x(3) = 0, x(4) = 1, x(5) = 1, x(6) = 0.

[0216] In addition, when the value of n is greater than 6, the value of x(n) can be determined based on the following formula (2).

[0217] In formula (1), k is the cyclic shift value. The cyclic shift value k varies for different third sequences.

[0218] C third sequences can be randomly generated based on the above formula (1). That is, the number of multiple third sequences is C, and the step size of the cyclic shift value is l. Since the length of the sequence is 127, the step size of the cyclic shift value is l. or

[0219] It should be noted that, Indicates rounding up. This indicates rounding down. Assume C = 30, l = 5 or 4. k = p * l. Where p is the index or sequence number of the C third sequences, 0 <= p. <C。

[0220] It should be understood that the network device carries one of the above C third sequences through the PSS, and the terminal device can determine the first cell identification information indicated by the network device based on the sequence number p of the third sequence.

[0221] In one possible implementation, when the PSS occupies multiple time domain units, the first modulated sequence after the first sequence modulation is repeatedly transmitted on the multiple time domain units occupied by the PSS.

[0222] In other words, the first sequence modulation is multiplexed onto multiple OFDM symbols. Specifically, the first sequence modulation is repeatedly transmitted on multiple symbols.

[0223] In another possible implementation, when the PSS occupies multiple time domain units, the first modulated sequence after the first sequence modulation is cascaded and transmitted on the multiple time domain units occupied by the PSS.

[0224] In other words, the first sequence modulation is concatenated across multiple OFDM symbols. For example, when the PSS occupies d OFDM symbols, the modulated symbol string after the first sequence modulation is divided into d parts, which are transmitted on d OFDM symbols respectively.

[0225] In another possible implementation, when the PSS occupies multiple time domain units, the first modulated sequence after the first sequence modulation is orthogonally spread spectrum transmitted over the multiple time domain units occupied by the PSS.

[0226] Assuming the PSS occupies d OFDM symbols, the modulated symbol string after the first sequence modulation is spread into d sequences through orthogonal spread spectrum. That is, the modulated symbol string after the first sequence modulation can be multiplied by a vector sequence of length d, and then transmitted on d OFDM symbols respectively.

[0227] In some embodiments, SSS carries information in a sequence manner.

[0228] In some embodiments, the second cell identification information in the SSS can be represented by a second sequence. The second sequence is carried on one or more frequency domain cells occupied by the SSS, and / or one or more time domain cells occupied by the SSS.

[0229] It should be noted that the second sequence mapping can be performed in either the frequency domain first and then the time domain, or in either the time domain first and then the frequency domain. This application does not impose any restrictions on this.

[0230] In some embodiments, the second sequence may be an m-sequence, a gold sequence, a ZC sequence, or other real or complex sequences, and this application does not limit this.

[0231] In some embodiments, the SSS can select a second sequence to represent the second cell identification information by sequence selection.

[0232] Specifically, the second sequence can be one of a plurality of fourth sequences, wherein the index value of the second sequence in the plurality of fourth sequences is associated with the second cell identification information.

[0233] It should be understood that the fourth sequence can refer to a candidate sequence. A network device can select one sequence from multiple fourth sequences based on its own second cell identifier information. The index value of the second sequence among the multiple fourth sequences can be determined based on the second cell identifier information.

[0234] For example, the index values ​​of multiple fourth sequences can correspond one-to-one with cell identification information. That is, one index value corresponds to one cell identification information, and different index values ​​correspond to different cell identification information.

[0235] For example, the index values ​​of multiple fourth sequences can correspond to cell identification information groups. That is, one index value can correspond to multiple cell identification information groups. The index value can be the result of modulo division of the cell identification information ID and parameter C2, where parameter C2 can be the total number of fourth sequences.

[0236] It should be noted that the index value can also be understood as a sequence number. The sequence number of the first sequence can refer to the order of the first sequence among multiple third sequences.

[0237] In some embodiments, multiple fourth sequences are obtained by cyclically shifting a second initial sequence, and different fourth sequences correspond to different cyclic shift values.

[0238] It should be noted that the second initial sequence and multiple fourth sequences can be determined based on the above formulas (1) and (2). The description of the second initial sequence and the fourth sequences can be found in the above embodiments. For the sake of brevity, they will not be repeated here.

[0239] In one possible implementation, when the SSS occupies multiple time-domain resources, the second modulated sequence after the second sequence modulation is repeatedly transmitted on multiple time-domain units occupied by the SSS.

[0240] In other words, the second sequence modulation is multiplexed onto multiple OFDM symbols. Specifically, the second sequence modulation is repeatedly transmitted on multiple symbols.

[0241] In another possible implementation, where the SSS occupies multiple time domain units, the second modulated sequence after the second sequence modulation is cascaded and transmitted on the multiple time domain units occupied by the SSS.

[0242] In other words, the second sequence modulation is concatenated across multiple OFDM symbols. For example, when the SSS occupies d OFDM symbols, the modulated symbol string after the second sequence modulation is divided into d parts, which are transmitted on d OFDM symbols respectively.

[0243] In another possible implementation, when the SSS occupies multiple time domain units, the second modulation sequence after the second sequence modulation is orthogonally spread spectrum transmitted over the multiple time domain units occupied by the SSS.

[0244] Assuming the SSS occupies d OFDM symbols, the modulated symbol string after the second sequence modulation is spread into d sequences through orthogonal spread spectrum. That is, the modulated symbol string after the second sequence modulation can be multiplied by a vector sequence of length d, and then transmitted on d OFDM symbols respectively.

[0245] It should be understood that in the embodiments of this application, the network device can transmit an adaptive SSB. Adaptive SSBs occupy less bandwidth and can transmit for a longer time, thus transmitting signals with comparable coverage to ordinary synchronization signals using less power. The terminal device can decide whether to use a higher-power ordinary broadcast channel, including ordinary SSBs, based on the adaptive SSBs of neighboring cells it finds. The network device can transmit dormant SSBs or energy-saving SSBs, which can save a significant amount of power consumption for network devices in macrocells. Furthermore, in the embodiments of this application, when the terminal device needs to enter a normal state, it typically turns on a high-power amplifier. In the dormant state, the adaptive synchronization signal provided in the embodiments of this application can be used, which will use only a low-power amplifier or reduce the amplifier's power-on time, flexibly supporting power saving on the transmission side in various implementation schemes.

[0246] The signal transmission method provided in this application embodiment will be described in detail below with reference to specific application scenarios.

[0247] In current networks, the SSB (Special Signal Bus) is a mandatory signal. For macro base stations, the SSB cannot be turned off, which would prevent the base station from completely sleeping and result in high power consumption. If turning off or sleeping the SSB signal is supported, the signal needs to be transmitted in a low-power manner while still allowing the terminal device to be aware of the network cell's existence. This is so that the terminal device can trigger the wake-up of one or more cells in the network. Based on this, this application provides two methods.

[0248] First, let's introduce method one.

[0249] In Method 1, the frequency division multiplexing of each sub-signal in the SSB can include the following:

[0250] 1) The terminal device receives an adaptive SSB sent by the network device, where the SSB consists of at least one of the following sub-signals: PSS, SSS, and PBCH. In other words, the network device can selectively send the sub-signals of the SSB.

[0251] The PSS carries information including the cell ID or a portion thereof, which is carried via a sequence.

[0252] The SSS carries information including the cell ID or a part of the cell ID, which is carried through a sequence.

[0253] The PBCH carries information including basic cell parameters, which are generated through channel coding and OFDM modulation.

[0254] Among them, the multiplexing characteristic of different sub-signals in SSB is frequency division.

[0255] It should be noted that the terminal device can report feedback signals based on some or all of the received SSB, including access signals, wake-up signals, and measurement results.

[0256] 2): Based on 1) above, the multiplexing method of each sub-signal in SSB is frequency division.

[0257] For example, referring to Figure 7, different RBs or different subcarriers are used within a given bandwidth (e.g., 12 RBs). There are guard subcarriers between the sub-signals.

[0258] It should be noted that the frequency division multiplexing method is not limited to having the PSS in the middle; it can also be a method where the PSS is in the lower frequency and the PBCH is in the middle.

[0259] 3): Based on 1) and 2) above, network devices selectively transmit sub-signals. Terminal devices detect one, two, or three of these sub-signals upon reception.

[0260] The terminal device reports feedback signals based on some or all of the arriving SSB, including access signals, wake-up signals, and measurement results.

[0261] 4): Based on 1) above, PSS or SSS possesses at least one of the following characteristics:

[0262] A. Information is carried out through a sequence.

[0263] B. The sequence is carried on multiple subcarriers and multiple OFDM symbols. The sequence mapping method is either subcarrier first (frequency domain) or OFDM symbol first (time domain).

[0264] 5): Based on 1) to 4) above, the PSS or SSS carries the cell ID or a portion of the cell ID information through sequence selection. The sequence can be an m-sequence, a gold sequence, a ZC sequence, or other real or complex sequences.

[0265] 6): Based on 5), taking a 127-length m-sequence as an example, s ( k ) (n) sequence is defined as: s (k) (n) = x((n+k) mod 127)

[0266] in, k is the cyclic shift value.

[0267] Initialize x(0) = 1, x(1) = 1, x(2) = 1, x(3) = 0, x(4) = 1, x(5) = 1, x(6) = 0.

[0268] 7): Based on 6), the random sequence generates C candidate sequences. The step size is l. Specifically, taking a sequence of length m of length 127 as an example, l = or

[0269] For example, when C is 30, l = 5 or 4.

[0270] In some embodiments, k = p * l, where p is the index of the C candidate sequences, 0 <= p. <C。

[0271] It should be understood that the terminal selects one of the C candidate sequences transmitted by the network device based on the sequence number p. The value of the sequence number i is related to the system information of the base station cell. In particular, the sequence number selection is related to the cell ID. It can be a one-to-one correspondence between the cell ID and the candidate, or the sequence number ID can be the group ID generated by dividing the cell ID modulo (or rounding down the first few digits) C.

[0272] 8): Building upon 4), sequence modulation is multiplexed onto multiple OFDM symbols. Specifically, sequence modulation is repeatedly transmitted on multiple symbols.

[0273] 9): Building upon 4), sequence modulation is multiplexed onto multiple OFDM symbols. Specifically, sequence modulation is repeatedly transmitted on multiple symbols.

[0274] 10): Building upon 4), sequence modulation is transmitted orthogonally spread across multiple OFDM symbols. The sequence-modulated symbol string is spread into d sequences using orthogonal spread spectrum. That is, the sequence-modulated symbol string is multiplied by a vector sequence of length d, and then transmitted on d OFDM symbols respectively.

[0275] 11): Based on steps 1) to 3) above, the terminal device measures and detects a portion of the synchronization signal of a cell, such as the PSS sub-signal. Based on the strength threshold of the detected signal, it selects the corresponding uplink wake-up signal to wake up the network equipment.

[0276] 12): Based on steps 1) to 3) above, the terminal device measures and detects a portion of the synchronization signal of a cell, such as the PSS sub-signal. The strength of the detected signal is reported and associated with the cell ID.

[0277] 13): Based on 1) to 3) above, the terminal equipment measures and detects the complete synchronization signal of a cell, including PSS and SSS, or including PSS / SSS / PBSCH. Based on the detected signal, an uplink random access signal is sent.

[0278] Method two is described below.

[0279] In Method 2, the various sub-signals in the SSB are time-division multiplexed. Method 2 may include the following:

[0280] 1) The terminal device receives an adaptive SSB sent by the network device, where the SSB consists of at least one of the following sub-signals: PSS, SSS, and PBCH. In other words, the network device can selectively send the sub-signals of the SSB.

[0281] The PSS carries information including the cell ID or a portion thereof, which is carried via a sequence.

[0282] The SSS carries information including the cell ID or a part of the cell ID, which is carried through a sequence.

[0283] The PBCH carries information including basic cell parameters, which are generated through channel coding and OFDM modulation.

[0284] Among them, the multiplexing characteristics of different sub-signals in SSB are time-division multiplexing.

[0285] It should be noted that the terminal device can report feedback signals based on some or all of the received SSB, including access signals, wake-up signals, and measurement results.

[0286] 2): Based on 1) above, the multiplexing method of each sub-signal in SSB is time-division.

[0287] For example, referring to Figure 8, different symbols are occupied within a given symbol (such as four symbols in a time slot).

[0288] It should be noted that the time-division multiplexing method is not limited to PSS first, but can also be PSS in the middle / after, SSS / PBCH first, etc.

[0289] Optionally, a protection symbol can be used between sub-signals.

[0290] 3): Based on 1) and 2) above, network devices selectively transmit sub-signals. Terminal devices detect one, two, or three of these sub-signals upon reception.

[0291] The terminal device reports feedback signals based on some or all of the arriving SSB, including access signals, wake-up signals, and measurement results.

[0292] 4): Based on 1) above, PSS or SSS possesses at least one of the following characteristics:

[0293] A. Information is carried out through a sequence.

[0294] B. The sequence is carried on multiple subcarriers and multiple OFDM symbols. The sequence mapping method is either subcarrier first (frequency domain) or OFDM symbol first (time domain).

[0295] 5): Based on 1) to 4) above, the PSS or SSS carries the cell ID or a portion of the cell ID information through sequence selection. The sequence can be an m-sequence, a gold sequence, a ZC sequence, or other real or complex sequences.

[0296] 6): Based on 5), taking a 127-length m-sequence as an example, s (k) (n) sequence is defined as: s (k) (n) = x((n+k) mod 127)

[0297] in, k is the cyclic shift value.

[0298] Initialize x(0) = 1, x(1) = 1, x(2) = 1, x(3) = 0, x(4) = 1, x(5) = 1, x(6) = 0.

[0299] 7): Based on 6), the random sequence generates C candidate sequences. The step size is l. Specifically, taking a sequence of length m of length 127 as an example, l = or

[0300] For example, when C is 30, l = 5 or 4.

[0301] In some embodiments, k = p * l, where p is the index of the C candidate sequences, 0 <= p. <C。

[0302] It should be understood that the terminal selects one of the C candidate sequences transmitted by the network device based on the sequence number p. The value of the sequence number p is related to the system information of the base station cell. In particular, the sequence number selection is related to the cell ID. It can be a one-to-one correspondence between the cell ID and the candidate, or the sequence number ID can be the group ID generated by dividing the cell ID modulo (or rounding down the first few digits) by C.

[0303] 8): Building upon 4), sequence modulation is multiplexed onto multiple OFDM symbols. Specifically, sequence modulation is repeatedly transmitted on multiple symbols.

[0304] 9): Building upon 4), sequence modulation is multiplexed onto multiple OFDM symbols. Specifically, sequence modulation is repeatedly transmitted on multiple symbols.

[0305] 10): Building upon 4), sequence modulation is transmitted orthogonally spread across multiple OFDM symbols. The sequence-modulated symbol string is spread into d sequences using orthogonal spread spectrum. That is, the sequence-modulated symbol string is multiplied by a vector sequence of length d, and then transmitted on d OFDM symbols respectively.

[0306] 11): Based on steps 1) to 3) above, the terminal device measures and detects a portion of the synchronization signal of a cell, such as the PSS sub-signal. Based on the strength threshold of the detected signal, it selects the corresponding uplink wake-up signal to wake up the network equipment.

[0307] 12): Based on steps 1) to 3) above, the terminal device measures and detects a portion of the synchronization signal of a cell, such as the PSS sub-signal. The strength of the detected signal is reported and correlated with the cell ID.

[0308] 13): Based on 1) to 3) above, the terminal equipment measures and detects the complete synchronization signal of a cell, including PSS and SSS, or including PSS / SSS / PBSCH. Based on the detected signal, an uplink random access signal is sent.

[0309] It should be noted that, referring to Figure 11, in related technologies, when a network device enters sleep mode, it needs to send a discovery signal in a low-power manner to allow the terminal device to still be aware of the existence of the network cell. Using the method provided in this application embodiment, the network device can transmit a portion of the signal in the SSB, thus achieving the function of a discovery signal.

[0310] It should be understood that in the embodiments of this application, the network device can transmit adaptive SSBs. Adaptive SSBs occupy less bandwidth and can be transmitted for a longer time, thereby transmitting signals with coverage comparable to ordinary synchronization signals using less power consumption. The terminal device can decide whether to use ordinary broadcast channels, including ordinary SSBs, which consume more power, based on the adaptive SSBs of neighboring cells it has searched. The network device can transmit dormant SSBs or energy-saving SSBs, which can save a significant amount of power consumption for network devices in macro cells.

[0311] Furthermore, in this embodiment, when the terminal device needs to enter normal mode, a high-power amplifier is typically turned on. In sleep mode, the adaptive synchronization signal provided in this embodiment can be used, which will use only a low-power amplifier or reduce the amplifier's power-on time, flexibly supporting power saving on the transmission side in various implementation schemes.

[0312] The preferred embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this application, various simple modifications can be made to the technical solutions of this application, and these simple modifications all fall within the protection scope of this application. For example, the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this application will not describe the various possible combinations separately. Furthermore, various different embodiments of this application can also be arbitrarily combined, as long as they do not violate the spirit of this application, they should also be considered as the content disclosed in this application. Moreover, without conflict, the various embodiments and / or the technical features in the various embodiments described in this application can be arbitrarily combined with the prior art, and the resulting technical solutions should also fall within the protection scope of this application.

[0313] It should also be understood that, in the various method embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0314] Figure 12 is a schematic diagram of the structure of a signal receiving device 1200 provided in an embodiment of this application, applied to a terminal device. As shown in Figure 12, the signal receiving device 1200 may include:

[0315] The first communication unit 1210 is configured to receive a synchronization signal block sent by the first network device, the synchronization signal block including one or more of the following signals:

[0316] Master synchronization signal;

[0317] Auxiliary synchronization signal;

[0318] Broadcast signal.

[0319] In some embodiments, different signals in the synchronization signal block are frequency-division multiplexed and / or time-division multiplexed.

[0320] In some embodiments, the bandwidth of the synchronization signal block is less than a first threshold.

[0321] In some embodiments, each signal in the synchronization signal block occupies one or more frequency domain units.

[0322] In some embodiments, each signal in the synchronization signal block occupies the same number of frequency domain units; or, at least some signals in the synchronization signal block occupy different numbers of frequency domain units.

[0323] In some embodiments, different signals in the synchronization signal block are frequency-division multiplexed, and different signals in the synchronization signal block occupy different frequency domain units.

[0324] In some embodiments, the different signals in the synchronization signal block are spaced apart by a first number of frequency domain units.

[0325] In some embodiments, different signals in the synchronization signal block are time-division multiplexed, and at least some signals in the synchronization signal block occupy the same frequency domain unit.

[0326] In some embodiments, each signal in the synchronization signal block occupies one or more time domain units.

[0327] In some embodiments, each signal in the synchronization signal block occupies the same number of time-domain units; or, at least some of the signals in the synchronization signal block occupy different numbers of time-domain units.

[0328] In some embodiments, different signals in the synchronization signal block are frequency-division multiplexed, and at least some signals in the synchronization signal block occupy the same time domain unit.

[0329] In some embodiments, different signals in the synchronization signal block are time-division multiplexed, and different signals in the synchronization signal block occupy different time domain units.

[0330] In some embodiments, the different signals in the synchronization signal block are spaced apart by a second number of time-domain units.

[0331] In some embodiments, the first communication unit 1210 is further configured to transmit a first signal associated with a signal included in the synchronization signal block.

[0332] In some embodiments, the first signal includes one or more of the following:

[0333] Access signal; the access signal is used to access the first network device;

[0334] Wake-up signal; the wake-up signal is used to wake up the first network device;

[0335] A signal carrying the measurement result of the synchronization signal block; the measurement result is used to determine whether to wake up the first network device.

[0336] In some embodiments, where the synchronization signal block includes a primary synchronization signal and a secondary synchronization signal, the first signal includes an access signal.

[0337] In some embodiments, when the synchronization signal block includes a primary synchronization signal or a secondary synchronization signal, the first signal includes a signal carrying the measurement result of the synchronization signal block, and / or a wake-up signal.

[0338] In some embodiments, the measurement result of the synchronization signal block is related to the cell identification information corresponding to the synchronization signal block.

[0339] In some embodiments, the primary synchronization signal is used to carry first cell identification information;

[0340] The auxiliary synchronization signal is used to carry the second cell identification information;

[0341] The information carried by the broadcast signal includes the configuration parameters of the cell associated with the first network device;

[0342] Wherein, the first cell identification information and / or the second cell identification information are all or part of the identification information of the cell corresponding to the first network device.

[0343] In some embodiments, the first cell identification information is represented by a first sequence, and / or the second cell identification information is represented by a second sequence.

[0344] In some embodiments, the first sequence is one of a plurality of third sequences, and the index value of the first sequence in the plurality of third sequences is associated with the first cell identification information;

[0345] And / or,

[0346] The second sequence is one of a plurality of fourth sequences, and the index value of the second sequence in the plurality of fourth sequences is associated with the second cell identification information.

[0347] In some embodiments, the plurality of third sequences are obtained by cyclically shifting a first initial sequence, and the cyclic shift values ​​corresponding to different third sequences are different.

[0348] And / or,

[0349] The multiple fourth sequences are obtained by cyclically shifting the second initial sequence, and the cyclic shift values ​​corresponding to different fourth sequences are different.

[0350] In some embodiments, the first sequence is carried on one or more frequency domain units occupied by the main synchronization signal, and / or one or more time domain units occupied by the main synchronization signal;

[0351] And / or,

[0352] The second sequence is carried on one or more frequency domain units occupied by the auxiliary synchronization signal, and / or one or more time domain units occupied by the auxiliary synchronization signal.

[0353] In some embodiments, when the main synchronization signal occupies multiple time domain units, the first modulation sequence after the first sequence modulation is repeatedly transmitted on the multiple time domain units occupied by the main synchronization signal;

[0354] And / or,

[0355] When the auxiliary synchronization signal occupies multiple time domain units, the second modulation sequence after the second sequence modulation is repeatedly transmitted on the multiple time domain units occupied by the auxiliary synchronization signal.

[0356] In some embodiments, when the main synchronization signal occupies multiple time domain units, the first modulation sequence after the first sequence modulation is cascaded and transmitted on the multiple time domain units occupied by the main synchronization signal.

[0357] And / or,

[0358] When the auxiliary synchronization signal occupies multiple time domain units, the second modulation sequence after the second sequence modulation is cascaded and transmitted on the multiple time domain units occupied by the auxiliary synchronization signal.

[0359] In some embodiments, when the main synchronization signal occupies multiple time domain units, the first modulation sequence after the first sequence modulation is orthogonally spread spectrum transmitted over the multiple time domain units occupied by the main synchronization signal.

[0360] And / or,

[0361] When the auxiliary synchronization signal occupies multiple time domain units, the second modulation sequence after the second sequence modulation is orthogonally spread spectrum transmitted over the multiple time domain units occupied by the auxiliary synchronization signal.

[0362] Those skilled in the art should understand that the description of the signal receiving device in the embodiments of this application can be understood with reference to the description of the signal receiving method in the embodiments of this application.

[0363] Figure 13 is a schematic diagram of the structure of a signal transmitting device 1300 provided in an embodiment of this application, applied to a first network device. As shown in Figure 13, the signal transmitting device 1300 may include:

[0364] The second communication unit 1310 is configured to transmit a synchronization signal block, the synchronization signal block including one or more of the following signals:

[0365] Master synchronization signal;

[0366] Auxiliary synchronization signal;

[0367] Broadcast signal.

[0368] In some embodiments, different signals in the synchronization signal block are frequency-division multiplexed and / or time-division multiplexed.

[0369] In some embodiments, the bandwidth of the synchronization signal block is less than a first threshold.

[0370] In some embodiments, each signal in the synchronization signal block occupies one or more frequency domain units.

[0371] In some embodiments, the number of frequency domain units occupied by each signal in the synchronization signal block is the same; or,

[0372] The synchronization signal blocks contain at least some signals that occupy different numbers of frequency domain units.

[0373] In some embodiments, different signals in the synchronization signal block are frequency-division multiplexed, and different signals in the synchronization signal block occupy different frequency domain units.

[0374] In some embodiments, the different signals in the synchronization signal block are spaced apart by a first number of frequency domain units.

[0375] In some embodiments, different signals in the synchronization signal block are time-division multiplexed, and at least some signals in the synchronization signal block occupy the same frequency domain unit.

[0376] In some embodiments, each signal in the synchronization signal block occupies one or more time domain units.

[0377] In some embodiments, each signal in the synchronization signal block occupies the same number of time-domain units; or,

[0378] At least some of the signals in the synchronization signal block occupy a different number of time domain units.

[0379] In some embodiments, different signals in the synchronization signal block are frequency-division multiplexed, and at least some signals in the synchronization signal block occupy the same time domain unit.

[0380] In some embodiments, different signals in the synchronization signal block are time-division multiplexed, and different signals in the synchronization signal block occupy different time domain units.

[0381] In some embodiments, the different signals in the synchronization signal block are spaced apart by a second number of time-domain units.

[0382] In some embodiments, the second communication unit 1310 is further configured to receive a first signal sent by the terminal device, the first signal being associated with a signal included in the synchronization signal block.

[0383] In some embodiments, the first signal includes one or more of the following:

[0384] Access signal; the access signal is used to access the first network device;

[0385] Wake-up signal; the wake-up signal is used to wake up the first network device;

[0386] A signal carrying the measurement result of the synchronization signal block; the measurement result is used to determine whether to wake up the first network device.

[0387] In some embodiments, where the synchronization signal block includes a primary synchronization signal and a secondary synchronization signal, the first signal includes an access signal.

[0388] In some embodiments, when the synchronization signal block includes a primary synchronization signal or a secondary synchronization signal, the first signal includes a signal carrying the measurement result of the synchronization signal block, and / or a wake-up signal.

[0389] In some embodiments, the measurement result of the synchronization signal block is related to the cell identification information corresponding to the synchronization signal block.

[0390] In some embodiments, the primary synchronization signal is used to carry first cell identification information;

[0391] The auxiliary synchronization signal is used to carry the second cell identification information;

[0392] The information carried by the broadcast signal includes the configuration parameters of the cell associated with the first network device;

[0393] Wherein, the first cell identification information and / or the second cell identification information are all or part of the identification information of the cell corresponding to the first network device.

[0394] In some embodiments, the first cell identification information is represented by a first sequence, and / or the second cell identification information is represented by a second sequence.

[0395] In some embodiments, the first sequence is one of a plurality of third sequences, and the index value of the first sequence in the plurality of third sequences is associated with the first cell identification information;

[0396] And / or,

[0397] The second sequence is one of a plurality of fourth sequences, and the index value of the second sequence in the plurality of fourth sequences is associated with the second cell identification information.

[0398] In some embodiments, the plurality of third sequences are obtained by cyclically shifting a first initial sequence, and the cyclic shift values ​​corresponding to different third sequences are different.

[0399] And / or,

[0400] The multiple fourth sequences are obtained by cyclically shifting the second initial sequence, and the cyclic shift values ​​corresponding to different fourth sequences are different.

[0401] In some embodiments, the first sequence is carried on one or more frequency domain units occupied by the main synchronization signal, and / or one or more time domain units occupied by the main synchronization signal;

[0402] And / or,

[0403] The second sequence is carried on one or more frequency domain units occupied by the auxiliary synchronization signal, and / or one or more time domain units occupied by the auxiliary synchronization signal.

[0404] In some embodiments, when the main synchronization signal occupies multiple time domain units, the first modulation sequence after the first sequence modulation is repeatedly transmitted on the multiple time domain units occupied by the main synchronization signal;

[0405] And / or,

[0406] When the auxiliary synchronization signal occupies multiple time domain units, the second modulation sequence after the second sequence modulation is repeatedly transmitted on the multiple time domain units occupied by the auxiliary synchronization signal.

[0407] In some embodiments, when the main synchronization signal occupies multiple time domain units, the first modulation sequence after the first sequence modulation is cascaded and transmitted on the multiple time domain units occupied by the main synchronization signal.

[0408] And / or,

[0409] When the auxiliary synchronization signal occupies multiple time domain units, the second modulation sequence after the second sequence modulation is cascaded and transmitted on the multiple time domain units occupied by the auxiliary synchronization signal.

[0410] In some embodiments, when the main synchronization signal occupies multiple time domain units, the first modulation sequence after the first sequence modulation is orthogonally spread spectrum transmitted over the multiple time domain units occupied by the main synchronization signal.

[0411] And / or,

[0412] When the auxiliary synchronization signal occupies multiple time domain units, the second modulation sequence after the second sequence modulation is orthogonally spread spectrum transmitted over the multiple time domain units occupied by the auxiliary synchronization signal.

[0413] Those skilled in the art should understand that the description of the signal transmitting device in the embodiments of this application can be understood by referring to the description of the signal transmitting method in the embodiments of this application.

[0414] Figure 14 is a schematic diagram of the structural composition of a communication device according to an embodiment of this application. The communication device 1400 can be a first network device or a terminal device. The communication device 1400 shown in Figure 14 may include a processor 1410, a memory 1420, and a transceiver 1430, wherein:

[0415] Memory 1420 is used to store computer programs;

[0416] The processor 1410, connected to the memory 1420, is used to call and run a computer program from the memory 1420 to implement the method in the embodiments of this application;

[0417] The transceiver 1430, also known as a communication interface, is used for receiving and sending information during communication with other external devices.

[0418] In some embodiments, the memory 1420 may be a separate device independent of the processor 1410, or it may be integrated into the processor 1410.

[0419] In some embodiments, transceiver 1430 may include an input interface. Processor 1410 may control this input interface to communicate with other external devices, specifically, to receive information or data sent by other external devices.

[0420] In some embodiments, transceiver 1430 may include an output interface. Processor 1410 may control this output interface to communicate with other external devices; specifically, it may send information or data to other external devices.

[0421] In some embodiments, transceiver 1430 may include a transmitter and a receiver. Transceiver 1430 may further include antennas, and the number of antennas may be one or more.

[0422] In some embodiments, the communication device 1400 can be applied to the terminal device of the present application embodiment, and the communication device 1400 can implement the corresponding processes implemented by the terminal device in the various methods of the present application embodiment. For the sake of brevity, it will not be described in detail here.

[0423] In some embodiments, the communication device 1400 can be applied to the network device of the present application embodiment, and the communication device 1400 can implement the corresponding processes implemented by the network device in the various methods of the present application embodiment. For the sake of brevity, it will not be described in detail here.

[0424] Figure 15 is a schematic structural diagram of a chip provided in an embodiment of this application. The chip 1500 shown in Figure 15 includes a processor 1510, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0425] In some embodiments, as shown in FIG15, chip 1500 may further include memory 1520. Processor 1510 may call and run computer programs from memory 1520 to implement the methods in the embodiments of this application.

[0426] The memory 1520 can be a separate device independent of the processor 1510, or it can be integrated into the processor 1510.

[0427] In some embodiments, the chip 1500 may further include an input interface 1530. The processor 2310 can control the input interface 1530 to communicate with other devices or chips; specifically, it can acquire information or data sent by other devices or chips.

[0428] In some embodiments, the chip 1500 may further include an output interface 1540. The processor 2310 can control the output interface 1540 to communicate with other devices or chips, specifically, to output information or data to other devices or chips.

[0429] In some embodiments, the chip can be applied to the terminal device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0430] In some embodiments, the chip can be applied to the first network device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the first network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0431] 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.

[0432] Figure 16 is a schematic block diagram of a communication system provided in an embodiment of this application. As shown in Figure 16, the communication system 1600 includes a terminal device 1610 and a network device 1620.

[0433] The terminal device 1610 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 1620 can be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, they will not be described in detail here.

[0434] It should be understood that the processor in the embodiments of this application may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method embodiments can be completed by integrated logic circuits in the processor's hardware or by instructions in software form. The processor described above can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules can be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method.

[0435] It is understood that the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can 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. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory used in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0436] This application also provides a computer-readable storage medium storing a computer program that, when executed by at least one processor, implements the method described in this application.

[0437] In some embodiments, the computer-readable storage medium can be applied to the terminal device in the embodiments of this application, and the computer program causes the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0438] In some embodiments, the computer-readable storage medium may be applied to a first network device in the embodiments of this application, and the computer program causes a computer to execute the corresponding processes implemented by the first network device in the various methods of the embodiments of this application. For the sake of brevity, these will not be described in detail here.

[0439] This application also provides a computer program product, which includes a computer storage medium storing a computer program. The computer program includes instructions executable by at least one processor, which, when executed by at least one processor, implement the methods described in this application.

[0440] In some embodiments, the computer program product can be applied to the terminal device in the embodiments of this application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, they will not be described in detail here.

[0441] In some embodiments, the computer program product can be applied to the first network device in the embodiments of this application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the first network device in the various methods of the embodiments of this application. For the sake of brevity, they will not be described in detail here.

[0442] This application also provides a computer program that causes a computer to perform the methods described in this application.

[0443] In some embodiments, the computer program can be applied to the terminal device in the embodiments of this application. When the computer program is run on a computer, it causes the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0444] In some embodiments, the computer program can be applied to the first network device in the embodiments of this application. When the computer program is run on a computer, it causes the computer to execute the corresponding processes implemented by the first network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0445] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0446] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0447] In the embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection of apparatuses or units may be electrical, mechanical, or other forms.

[0448] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0449] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0450] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, ROM, RAM, magnetic disks, or optical disks.

[0451] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A signal receiving method, the method comprising: The terminal device receives a synchronization signal block sent by the first network device, the synchronization signal block including one or more of the following signals: Master synchronization signal; Auxiliary synchronization signal; Broadcast signal.

2. The method according to claim 1, wherein, The different signals in the synchronization signal block are frequency-division multiplexed and / or time-division multiplexed.

3. The method according to claim 1 or 2, wherein, The bandwidth of the synchronization signal block is less than the first threshold.

4. The method according to any one of claims 1-3, wherein, Each signal in the synchronization signal block occupies one or more frequency domain units.

5. The method according to claim 4, wherein, In the synchronization signal block, each signal occupies the same number of frequency domain units; or, The synchronization signal blocks contain at least some signals that occupy different numbers of frequency domain units.

6. The method according to any one of claims 1-5, wherein, The different signals in the synchronization signal block are frequency-division multiplexed, and the different signals in the synchronization signal block occupy different frequency domain units.

7. The method according to claim 6, wherein, The different signals in the synchronization signal block are spaced apart by a first number of frequency domain units.

8. The method according to any one of claims 1-5, wherein, Different signals in the synchronization signal block are time-division multiplexed, and at least some signals in the synchronization signal block occupy the same frequency domain unit.

9. The method according to any one of claims 1-8, wherein, Each signal in the synchronization signal block occupies one or more time domain units.

10. The method according to claim 9, wherein, Each signal in the synchronization signal block occupies the same number of time-domain units; or, At least some of the signals in the synchronization signal block occupy a different number of time domain units.

11. The method according to any one of claims 1-10, wherein, The different signals in the synchronization signal block are frequency-division multiplexed, and at least some of the signals in the synchronization signal block occupy the same time domain unit.

12. The method according to any one of claims 1-11, wherein, Different signals in the synchronization signal block are time-division multiplexed, and different signals in the synchronization signal block occupy different time domain units.

13. The method according to claim 12, wherein, The different signals in the synchronization signal block are spaced apart by a second number of time-domain units.

14. The method of any one of claims 1-13, wherein, Also includes: The terminal device sends a first signal, which is associated with the signal included in the synchronization signal block.

15. The method of claim 14, wherein, The first signal includes one or more of the following: Access signal; the access signal is used to access the first network device; Wake-up signal; the wake-up signal is used to wake up the first network device; A signal carrying the measurement result of the synchronization signal block; the measurement result is used to determine whether to wake up the first network device.

16. The method according to claim 14 or 15, wherein, In the case where the synchronization signal block includes a primary synchronization signal and an auxiliary synchronization signal, the first signal includes an access signal.

17. The method according to claim 14 or 15, wherein, When the synchronization signal block includes a main synchronization signal or an auxiliary synchronization signal, the first signal includes a signal carrying the measurement result of the synchronization signal block, and / or a wake-up signal.

18. The method according to claim 15 or 17, wherein, The measurement result of the synchronization signal block is related to the cell identification information corresponding to the synchronization signal block.

19. The method of any one of claims 1-18, wherein, Includes one or more of the following: The primary synchronization signal is used to carry the first cell identification information; The auxiliary synchronization signal is used to carry the second cell identification information; The information carried by the broadcast signal includes the configuration parameters of the cell associated with the first network device; Wherein, the first cell identification information and / or the second cell identification information are all or part of the identification information of the cell corresponding to the first network device.

20. The method according to claim 19, wherein, The first cell identification information is represented by a first sequence, and / or the second cell identification information is represented by a second sequence.

21. The method according to claim 20, wherein, The first sequence is one of a plurality of third sequences, and the index value of the first sequence in the plurality of third sequences is associated with the first cell identification information; And / or, The second sequence is one of a plurality of fourth sequences, and the index value of the second sequence in the plurality of fourth sequences is associated with the second cell identification information.

22. The method according to claim 21, wherein, The plurality of third sequences are obtained by cyclically shifting the first initial sequence, and the cyclic shift values ​​are different for different third sequences; And / or, The multiple fourth sequences are obtained by cyclically shifting the second initial sequence, and the cyclic shift values ​​corresponding to different fourth sequences are different.

23. The method according to any one of claims 20-22, wherein, The first sequence is carried on one or more frequency domain units occupied by the main synchronization signal, and / or one or more time domain units occupied by the main synchronization signal; And / or, The second sequence is carried on one or more frequency domain units occupied by the auxiliary synchronization signal, and / or one or more time domain units occupied by the auxiliary synchronization signal.

24. The method according to claim 23, wherein, When the main synchronization signal occupies multiple time domain units, the first modulation sequence after the first sequence modulation is repeatedly transmitted on the multiple time domain units occupied by the main synchronization signal; And / or, When the auxiliary synchronization signal occupies multiple time domain units, the second modulation sequence after the second sequence modulation is repeatedly transmitted on the multiple time domain units occupied by the auxiliary synchronization signal.

25. The method according to claim 23, wherein, When the main synchronization signal occupies multiple time domain units, the first modulation sequence after the first sequence modulation is cascaded and transmitted on the multiple time domain units occupied by the main synchronization signal; And / or, When the auxiliary synchronization signal occupies multiple time domain units, the second modulation sequence after the second sequence modulation is cascaded and transmitted on the multiple time domain units occupied by the auxiliary synchronization signal.

26. The method according to claim 23, wherein, When the main synchronization signal occupies multiple time domain units, the first modulation sequence after the first sequence modulation is orthogonally spread spectrum transmitted over the multiple time domain units occupied by the main synchronization signal; And / or, When the auxiliary synchronization signal occupies multiple time domain units, the second modulation sequence after the second sequence modulation is orthogonally spread spectrum transmitted over the multiple time domain units occupied by the auxiliary synchronization signal.

27. A signal transmission method, wherein, The method includes: The first network device sends a synchronization signal block, the synchronization signal block including one or more of the following signals: Master synchronization signal; Auxiliary synchronization signal; Broadcast signal.

28. The method according to claim 27, wherein, The different signals in the synchronization signal block are frequency-division multiplexed and / or time-division multiplexed.

29. The method according to claim 27 or 28, wherein, The bandwidth of the synchronization signal block is less than the first threshold.

30. The method according to any one of claims 27-29, wherein, Each signal in the synchronization signal block occupies one or more frequency domain units.

31. The method according to claim 30, wherein, In the synchronization signal block, each signal occupies the same number of frequency domain units; or, The synchronization signal blocks contain at least some signals that occupy different numbers of frequency domain units.

32. The method according to any one of claims 27-31, wherein, The different signals in the synchronization signal block are frequency-division multiplexed, and the different signals in the synchronization signal block occupy different frequency domain units.

33. The method according to claim 32, wherein, The different signals in the synchronization signal block are spaced apart by a first number of frequency domain units.

34. The method according to any one of claims 27-31, wherein, Different signals in the synchronization signal block are time-division multiplexed, and at least some signals in the synchronization signal block occupy the same frequency domain unit.

35. The method according to any one of claims 27-34, wherein, Each signal in the synchronization signal block occupies one or more time domain units.

36. The method according to claim 35, wherein, Each signal in the synchronization signal block occupies the same number of time-domain units; or, At least some of the signals in the synchronization signal block occupy a different number of time domain units.

37. The method according to any one of claims 27-36, wherein, The different signals in the synchronization signal block are frequency-division multiplexed, and at least some of the signals in the synchronization signal block occupy the same time domain unit.

38. The method according to any one of claims 27-37, wherein, Different signals in the synchronization signal block are time-division multiplexed, and different signals in the synchronization signal block occupy different time domain units.

39. The method according to claim 38, wherein, The different signals in the synchronization signal block are spaced apart by a second number of time-domain units.

40. The method according to any one of claims 27-39, wherein, Also includes: The first network device receives a first signal sent by the terminal device, and the first signal is associated with the signals included in the synchronization signal block.

41. The method according to claim 40, wherein, The first signal includes one or more of the following: Access signal; the access signal is used to access the first network device; Wake-up signal; the wake-up signal is used to wake up the first network device; A signal carrying the measurement result of the synchronization signal block; the measurement result is used to determine whether to wake up the first network device.

42. The method according to claim 40 or 41, wherein, In the case where the synchronization signal block includes a primary synchronization signal and an auxiliary synchronization signal, the first signal includes an access signal.

43. The method according to claim 40 or 41, wherein, When the synchronization signal block includes a main synchronization signal or an auxiliary synchronization signal, the first signal includes a signal carrying the measurement result of the synchronization signal block, and / or a wake-up signal.

44. The method according to claim 41 or 43, wherein, The measurement result of the synchronization signal block is related to the cell identification information corresponding to the synchronization signal block.

45. The method according to any one of claims 27-44, wherein, Includes one or more of the following: The primary synchronization signal is used to carry the first cell identification information; The auxiliary synchronization signal is used to carry the second cell identification information; The information carried by the broadcast signal includes the configuration parameters of the cell associated with the first network device; Wherein, the first cell identification information and / or the second cell identification information are all or part of the identification information of the cell corresponding to the first network device.

46. ​​The method according to claim 45, wherein, The first cell identification information is represented by a first sequence, and / or the second cell identification information is represented by a second sequence.

47. The method according to claim 46, wherein, The first sequence is one of a plurality of third sequences, and the index value of the first sequence in the plurality of third sequences is associated with the first cell identification information; And / or, The second sequence is one of a plurality of fourth sequences, and the index value of the second sequence in the plurality of fourth sequences is associated with the second cell identification information.

48. The method according to claim 47, wherein, The plurality of third sequences are obtained by cyclically shifting the first initial sequence, and the cyclic shift values ​​are different for different third sequences; And / or, The multiple fourth sequences are obtained by cyclically shifting the second initial sequence, and the cyclic shift values ​​corresponding to different fourth sequences are different.

49. The method according to any one of claims 46-48, wherein, The first sequence is carried on one or more frequency domain units occupied by the main synchronization signal, and / or one or more time domain units occupied by the main synchronization signal; And / or, The second sequence is carried on one or more frequency domain units occupied by the auxiliary synchronization signal, and / or one or more time domain units occupied by the auxiliary synchronization signal.

50. The method according to claim 49, wherein, When the main synchronization signal occupies multiple time domain units, the first modulation sequence after the first sequence modulation is repeatedly transmitted on the multiple time domain units occupied by the main synchronization signal; And / or, When the auxiliary synchronization signal occupies multiple time domain units, the second modulation sequence after the second sequence modulation is repeatedly transmitted on the multiple time domain units occupied by the auxiliary synchronization signal.

51. The method according to claim 49, wherein, When the main synchronization signal occupies multiple time domain units, the first modulation sequence after the first sequence modulation is cascaded and transmitted on the multiple time domain units occupied by the main synchronization signal; And / or, When the auxiliary synchronization signal occupies multiple time domain units, the second modulation sequence after the second sequence modulation is cascaded and transmitted on the multiple time domain units occupied by the auxiliary synchronization signal.

52. The method according to claim 49, wherein, When the main synchronization signal occupies multiple time domain units, the first modulation sequence after the first sequence modulation is orthogonally spread spectrum transmitted over the multiple time domain units occupied by the main synchronization signal; And / or, When the auxiliary synchronization signal occupies multiple time domain units, the second modulation sequence after the second sequence modulation is orthogonally spread spectrum transmitted over the multiple time domain units occupied by the auxiliary synchronization signal.

53. A signal receiving device, applied to a terminal device, the device comprising: The first communication unit is configured to receive a synchronization signal block sent by a first network device, the synchronization signal block including one or more of the following signals: Master synchronization signal; Auxiliary synchronization signal; Broadcast signal.

54. A signal transmitting device, applied to a network device, the device comprising: The second communication unit is configured to transmit a synchronization signal block, the synchronization signal block including one or more of the following signals: Master synchronization signal; Auxiliary synchronization signal; Broadcast signal.

55. A communication device, the communication device comprising: Memory, used to store computer programs; A processor, connected to the memory, is configured to retrieve and run the computer program from the memory to implement the method of any one of claims 1 to 26, or to implement the method of any one of claims 27 to 52; A transceiver is used to receive and send information when exchanging information with other external devices.

56. A chip, the chip comprising: Memory, used to store computer programs; A processor, connected to the memory, is configured to retrieve and run a computer program from the memory, causing a device on which the chip is mounted to perform the method as described in any one of claims 1 to 26, or to perform the method as described in any one of claims 27 to 52; A transceiver is used to receive and send information during the exchange of information with a device or chip.

57. A computer-readable storage medium storing a computer program that, when executed by at least one processor, implements the method as claimed in any one of claims 1 to 26, or implements the method as claimed in any one of claims 27 to 52.

58. A computer program product comprising a computer program or instructions which, when executed by a processor, implement the steps of the method as claimed in any one of claims 1 to 26; or implement the steps of the method as claimed in any one of claims 27 to 52.

59. A computer program that, when executed, causes a computer to perform the method as described in any one of claims 1 to 26, or to implement the method as described in any one of claims 27 to 52.

Images