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

Abstract

The present application provides a signal sending method, a signal receiving method, a device, a chip, and a storage medium. The signal sending method comprises: a network device sends a first-type SSB and a second-type SSB, wherein a first periodicity in which the network device sends the first-type SSB is less than or equal to a second periodicity in which the network device sends the second-type SSB.

Description

Signal transmission and reception methods, devices, chips and storage media Technical Field

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

[0002] During the system information measurement and acquisition phase, after powering on, the terminal device searches for the Synchronization Signal and PBCH Block (SSB) in the network (NW). For the terminal device, measuring and selecting the optimal SSB serves to obtain downlink time synchronization, determine the uplink transmission beam direction, and decode the Physical Broadcast Channel (PBCH) within the SSB. The PBCH contains the higher-layer Master Information Block (MIB), which in turn contains scheduling information for the Physical Downlink Shared Channel (PDSCH) carrying System Information Block (SIB) 1.

[0003] In 5G communication systems, in order to support initial cell synchronization, base stations need to send SSBs at least every 20ms. Even for cells with few or no users, base stations cannot stop sending, and may even increase the sending period, resulting in unnecessary energy consumption of the base station. Summary of the Invention

[0004] This application provides a signal transmission method and a signal reception method, device, chip, and storage medium.

[0005] The signal transmission method provided in this application includes:

[0006] The network device sends both the first type of SSB and the second type of SSB.

[0007] Wherein, the first period during which the network device sends the first type of SSB is less than or equal to the second period during which the network device sends the second type of SSB.

[0008] The signal receiving method provided in this application includes:

[0009] The terminal device receives a first type of synchronization signal block (SSB) and / or a second type of SSB.

[0010] Wherein, the first period during which the terminal device receives the first type of SSB is less than or equal to the second period during which the terminal device receives the second type of SSB.

[0011] The network equipment provided in this application includes:

[0012] The first communication unit is configured to transmit a first type of SSB and a second type of SSB;

[0013] Wherein, the first period during which the network device sends the first type of SSB is less than or equal to the second period during which the network device sends the second type of SSB.

[0014] The terminal equipment provided in this application includes:

[0015] The second communication unit is configured to receive a first type of synchronization signal block (SSB) and / or a second type of SSB.

[0016] Wherein, the first period during which the terminal device receives the first type of SSB is less than or equal to the second period during which the terminal device receives the second type of SSB.

[0017] 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.

[0018] The chip provided in this application is used to implement the above-described signal transmission method or signal reception method.

[0019] 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.

[0020] 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.

[0021] 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.

[0022] The computer program provided in this application causes a computer to perform the above-described signal transmission method or signal reception method.

[0023] This application provides a signal transmission method and a signal reception method, wherein a network device transmits a first type of SSB and a second type of SSB; a terminal device receives a first type of synchronization signal block SSB and / or a second type of SSB. The first period of the first type of SSB is less than or equal to the second period of the second type of SSB, which reduces the transmission of the second type of SSB, thereby avoiding prolonged SSB searching by the terminal device and also reducing the transmission power consumption of the network device. Attached Figure Description

[0024] 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:

[0025] Figure 1 is a schematic diagram of a communication architecture provided in an embodiment of this application;

[0026] Figure 2 is a schematic diagram of the structure of the SSB provided in an embodiment of this application;

[0027] Figure 3 is a schematic diagram of the transmission effect of the SSB burst set provided in the embodiment of this application;

[0028] Figure 4 is a flowchart illustrating a signal transmission method provided in an embodiment of this application;

[0029] Figure 5 is a flowchart illustrating a signal receiving method provided in an embodiment of this application;

[0030] Figure 6 is a schematic diagram of an optional structure of the second type of SSB provided in an embodiment of this application;

[0031] Figure 7 is a schematic diagram of an optional structure of the second type of SSB provided in an embodiment of this application.

[0032] Figure 8 is a schematic diagram of an optional structure of the second type of SSB provided in an embodiment of this application.

[0033] Figure 9 is a schematic diagram illustrating the optional relationship between the first type of SSB and the second type of SSB provided in the embodiments of this application;

[0034] Figure 10 is a schematic diagram of the optional relationship between the first MIB and PSS, SSS provided in the embodiments of this application;

[0035] Figure 11 is a schematic diagram of the optional relationship between the first MIB and PSS, SSS provided in the embodiments of this application;

[0036] Figure 12 is a schematic diagram illustrating the optional relationship between the first MIB and PSS, SSS provided in an embodiment of this application;

[0037] Figure 13 is a schematic diagram of the optional relationship between the first MIB and PSS, SSS provided in the embodiments of this application;

[0038] Figure 14 is a schematic diagram illustrating the optional relationship between the first type of SSB and the second type of SSB provided in the embodiments of this application;

[0039] Figure 15 is a schematic diagram illustrating the optional relationship between the first type of SSB and the second type of SSB provided in the embodiments of this application;

[0040] Figure 16 is a schematic diagram illustrating the optional relationship between the first type of SSB and the second type of SSB provided in the embodiments of this application;

[0041] Figure 17 is a schematic diagram illustrating the optional relationship between the first type of SSB and the second type of SSB provided in the embodiments of this application;

[0042] Figure 18 is a schematic diagram illustrating the optional relationship between the first type of SSB and the second type of SSB provided in the embodiments of this application;

[0043] Figure 19 is a schematic diagram of the optional transmission locations of the first type of SSB collision set and the second type of SSB collision set provided in the embodiments of this application;

[0044] Figure 20 is a schematic diagram of the optional transmission locations of the first type of SSB collision set and the second type of SSB collision set provided in the embodiments of this application;

[0045] Figure 21 is a schematic diagram of the optional transmission locations of the first type of SSB collision set and the second type of SSB collision set provided in the embodiments of this application;

[0046] Figure 22 is a schematic diagram of the structural composition of a network device provided in an embodiment of this application;

[0047] Figure 23 is a schematic diagram of the structural composition of a terminal device provided in an embodiment of this application;

[0048] Figure 24 is a schematic diagram of the structural composition of a communication device provided in an embodiment of this application;

[0049] Figure 25 is a schematic structural diagram of a chip provided in an embodiment of this application;

[0050] Figure 26 is a schematic block diagram of a communication system provided in an embodiment of this application. Detailed Implementation

[0051] 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.

[0052] Figure 1 is a schematic diagram of an application scenario of an embodiment of this application.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] 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.

[0059] Terminal device 110 can be used for device-to-device (D2D) communication.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] 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.

[0067] 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 methods that can be used to indicate relevant information in the device (e.g., including the sending end and the receiving end), and this application does not limit the specific implementation method. For example, predefined can refer to what is 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 the LTE protocol, the NR protocol, and related protocols applied to future communication systems, and this application does not limit it.

[0068] 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.

[0069] In an NR system, the initial access process generally includes the following steps:

[0070] First, during the system information measurement and acquisition phase, after powering on, the UE searches for the Synchronization Signal and PBCH Block (SSB) in the network (NW). For the UE, measuring and selecting the optimal SSB serves to obtain downlink time synchronization, determine the uplink transmission beam direction, and decode the Physical Broadcast Channel (PBCH) within the SSB. The PBCH contains the higher-layer Master Information Block (MIB), which in turn contains scheduling information for the Physical Downlink Shared Channel (PDSCH) carrying System Information Block (SIB) 1.

[0071] In this system, the user equipment (UE) can scan and measure the SSBs transmitted from the base station to evaluate signal quality (such as L1-Reference Signal Receiving Power, L1-RSRP) and select the optimal SSB for access. Figure 2 is a schematic diagram of the structure of a synchronization signal block provided in an embodiment of this application. As shown in Figure 2, the SSB includes a primary synchronization signal (PSS), a secondary synchronization signal (SSS), a PBCH, and a PBCH demodulation reference signal (DMRS). The PSS and SSS contain 12 Physical Resource Blocks (PRBs) in the frequency domain, and the PBCH contains 20 PRBs in the frequency domain. The SSB can indicate the cell identity document (ID), support UE time-frequency synchronization, obtain the MIB, assist in cell search, and be used for Radio Resource Management (RRM) and Radio Link Management (RLM) measurements, etc.

[0072] In 5G, coverage requirements are met by introducing a beam sweeping mechanism, essentially trading time for space. To this end, 5G periodically transmits SSBs in the time domain in the form of SSB burst sets. Each SSB burst set contains multiple SSBs, all concentrated within a 5ms range. Different SSBs may have different beam directions, thus achieving coverage in different directions. As shown in Figure 3, SSB burst sets are transmitted at a period of 20ms, and each SSB burst set contains 8 SSBs, corresponding to indices #0 to #7. Different SSBs target different beam directions, ensuring that UEs in different directions can receive SSBs with sufficiently high RSRP.

[0073] The SSB transmission period can range from 5 milliseconds to 160 milliseconds, for example, {5, 10, 20, 40, 80, 160} ms. This period can be configured via higher-layer signaling. However, for a UE performing initial cell search, it cannot receive higher-layer signaling regarding the SSB burst set transmission period before searching for an SSB. Therefore, a default period needs to be defined. In the NR system, the default period for a UE performing initial cell search is defined as 20 ms. When the relevant higher-layer signaling received by the UE contains SSB burst set period information, the UE can determine the SSB burst set period using this information; otherwise, the UE defaults to a 5 ms period for the serving cell's SSB burst set.

[0074] After selecting the best SSB, the UE can decode the PBCH to obtain the MIB. Based on the configuration information in the MIB and the system message transmission method determined in the protocol, the UE blindly detects the scheduling physical downlink control channel (PDCCH) of system messages from the control-resource set (CORESET) #0 and the search space #0. It decodes the PDSCH carrying SIB1 from the PDCCH, thereby obtaining the RACH configuration information in SIB1. Here, CORESET is the set of PDCCH candidate sets on time and frequency resources, while Search Space is the search range of the PDCCH candidate sets within CORESET.

[0075] Next is the RACH stage. In NR Rel.15, a four-step RACH process was supported; in later versions, a two-step RACH process (divided into Step A and Step B) was also supported. Here, we will use the four-step RACH as an example for explanation.

[0076] (1) Transmission of random access preamble (Preamble as Msg.1). The UE selects a random access preamble and transmits it to the base station's transmission point (TRP) on the PRACH. The PRACH preamble sequence consists of a root sequence and its cyclic shift. The PRACH preamble defines the specific format of the PRACH preamble, including time-domain resources and frequency-domain resources.

[0077] (2) Random Access Response (RAR) (RAR as Msg.2). After receiving the preamble, the base station sends a RAR to the UE, which includes Timing Advance (TA), Uplink Resource Grant (UL grant), and Cell-Radio Network Temporary Identifier (C-RNTI). The UE listens to the PDCCH to receive the RAR. If the UE successfully receives a RAR and the preamble sequence in the RAR is the same as the preamble sequence sent by the UE, it is considered that the RAR has been successfully received, uplink resources have been obtained, and uplink data can be sent.

[0078] (3) RRC Connection Request (Msg.3). The UE sends an RRC Setup Request message using the uplink resources allocated in the RAR. This message contains the UE identifier and the reason for establishment. This step is part of the contention-based random access procedure.

[0079] (4) RRC Connection Device (Msg.4). After receiving the RRC connection request, the base station sends an RRC connection setup message to confirm the connection request and allocate the necessary resources. This message is used to resolve possible contention-based preamble sequence conflicts and marks the completion of the initial access procedure.

[0080] In 5G communication systems, in order to support initial cell synchronization, base stations need to send SSB burst sets at least every 20ms. Even for cells with few or no users, base stations cannot stop sending, and may even increase the sending period, resulting in unnecessary energy consumption of the base station.

[0081] 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.

[0082] Figure 4 is a flowchart illustrating a signal transmission method provided in an embodiment of this application. As shown in Figure 4, the method may include the following steps:

[0083] S401, The network device sends the first type of SSB and the second type of SSB;

[0084] Wherein, the first period during which the network device sends the first type of SSB is less than or equal to the second period during which the network device sends the second type of SSB.

[0085] Figure 5 is a flowchart illustrating a signal receiving method provided in an embodiment of this application. As shown in Figure 5, the method may include the following steps:

[0086] S501. The terminal device receives a first type of synchronization signal block SSB, and / or a second type of SSB;

[0087] Wherein, the first period during which the terminal device receives the first type of SSB is less than or equal to the second period during which the terminal device receives the second type of SSB.

[0088] The signal transmission method shown in Figure 5 or the signal reception method shown in Figure 6 will be described below.

[0089] For network devices, the network device sends a first type of SSB in a first cycle and a second type of SSB in a second cycle.

[0090] For a terminal device, in one case, the terminal device receives a first type of SSB in a first cycle; in another case, the terminal device receives a first type of SSB in a first cycle and a second type of SSB in a second cycle.

[0091] The first type of SSB can be replaced by the description of first SSB or first class SSB, and the second type of SSB can be replaced by the description of second SSB or second class SSB.

[0092] The first cycle is shorter than the second cycle.

[0093] In one example, the first cycle could be 5ms, 10ms, or 20ms, etc.

[0094] In one example, the second period could be 20ms, 40ms, 80ms, or 160ms, etc.

[0095] The first cycle can be replaced by the first transmission cycle, and the second cycle can be replaced by the second replacement cycle.

[0096] In this embodiment of the application, the network device provides time-frequency synchronization information and MIB to the terminal device through at least two types of SSBs, including a first type and a second type of SSB. Each type of SSB is sent according to a corresponding period. The time-frequency synchronization information is carried in the PSS and / or SSS.

[0097] PSS and SSS are used for synchronization of terminal devices in the time and frequency domains. PSS is used for coarse-grained synchronization of terminal devices in the time and frequency domains, while SSS is used for finer-grained synchronization of terminal devices in the time and frequency domains.

[0098] The PSS can be an M-sequence modulated by Binary Phase Shift Keying (BPSK), a Zadoff-Chu sequence, or other sequences with good autocorrelation and cross-correlation properties. The PSS occupies multiple consecutive subcarriers within an OFDM symbol, such as 127 subcarriers.

[0099] In one example, the PSS is used by the terminal device to determine the radio frame boundary; that is, the first synchronization information is related to the information used to determine the PSS. The SSS is used to determine the second synchronization information, which is related to the information used to determine the SSS.

[0100] In this embodiment of the application, the transmission period of the first type of SSB, i.e., the first period, is shorter than the transmission period of the second type of SSB, i.e., the second period. This can reduce the transmission of the second type of SSB, thereby avoiding the terminal device from searching for SSB for a long time and also helping to reduce the transmission power consumption of the network device.

[0101] In some embodiments, the first type of SSB can be time-invariant or finitely time-variant. In this case, the first type of SSB transmitted in different first cycles or the first type of SSB transmitted in different first cycles within a certain period of time remains unchanged. In this way, the first type of SSB can be transmitted in a smaller first cycle without the network device activating the baseband processing unit (BBU), thereby reducing the power consumption of the network device.

[0102] In some embodiments, the second period is M times the first period, where M is an integer greater than or equal to 1.

[0103] Understandably, the second period is an integer multiple of the first type of period.

[0104] In one example, the first period is 10ms and the second period is 40ms.

[0105] In some embodiments, the time-domain resources occupied by the first type of SSB are less than or equal to the time-domain resources occupied by the second type of SSB; and / or, the frequency-domain resources occupied by the first type of SSB are less than or equal to the frequency-domain resources occupied by the second type of SSB.

[0106] In some embodiments, the first type of SSB is used to determine one or more of the following:

[0107] Time synchronization information;

[0108] Frequency synchronization information;

[0109] The community prohibits access to information;

[0110] The time information of the second type of SSB.

[0111] Time synchronization information can be understood as information used for time-domain synchronization.

[0112] Frequency synchronization information can be understood as information used for frequency domain synchronization.

[0113] The cell access denial information is used to indicate the conditions under which access is denied in a cell. Different values ​​in the cell access denial information indicate different cell access denial conditions.

[0114] When the first type of SSB includes cell access prohibition information, the terminal device can terminate the detection of the second SSB of the cell earlier based on the received cell access prohibition information.

[0115] The time information for the second type of SSB is used to indicate the transmission time of the second type of SSB.

[0116] When the first type of SSB includes the time information of the second type of SSB, the terminal device can determine the time information of the second type of SSB based on the received first type of SSB, and detect the second type of SSB based on the time information of the second type of SSB, which can avoid the terminal device blindly detecting the power consumption of the second type of SSB.

[0117] In some embodiments, the timing information of the second type of SSB indicates one or more of the following:

[0118] Does the current first cycle include SSBs of the second type?

[0119] The duration of the interval between the first type of SSB and the second type of SSB.

[0120] The timing information of the second type of SSB can indicate whether the current first period includes the second type of SSB. If the timing information of the second type of SSB indicates that the current first period includes the second type of SSB, the terminal device can detect the second type of SSB in the current first period. If the timing information of the second type of SSB indicates that the current first period does not include the second type of SSB, the terminal device can choose not to detect the second type of SSB in the current first period.

[0121] The time information of the second type of SSB can indicate the interval between the current first type of SSB and the second type of SSB, and the terminal device can then detect the second type of SSB based on this interval.

[0122] In some embodiments, the time information of the second type of SSB can directly indicate the interval between the current first type of SSB and the second type of SSB, or it can indicate the interval between the current first type of SSB and the second type of SSB if the current first period includes the second type of SSB.

[0123] In this embodiment of the application, when the time information of the second type of SSB is not included in the first type of SSB, the terminal device performs blind detection on the second type of SSB.

[0124] In some embodiments, the cases of the first type of SSB and the second type of SSB include one or more of the following:

[0125] Case 1: The first type of SSB includes a primary synchronization signal, and the second type of SSB includes a secondary synchronization signal and primary system information;

[0126] Case 2: The first type of SSB includes a primary synchronization signal and a secondary synchronization signal, and the second type of SSB includes primary system information;

[0127] Case 3: The first type of SSB includes a primary synchronization signal, a secondary synchronization signal, and first master system information; the second type of SSB includes second master system information; the master system information includes the first master system information and the second master system information.

[0128] Case 4: The first type of SSB includes primary synchronization information and first primary system information, and the second type of SSB includes secondary synchronization signal and second primary system information.

[0129] For case 1, the first type of SSB contains only PSS, while the second type of SSB contains at least SSS and MIB.

[0130] In some embodiments, the master synchronization signal is determined based on one or more of the following:

[0131] Community signage information;

[0132] The community prohibits access to information;

[0133] The time information of the second type of SSB.

[0134] In one example, the cell identification information can be understood as the cell ID.

[0135] The methods for determining PSS include, but are not limited to, one or more of the following:

[0136] In Method 1A, the PSS is uniquely determined by the cell identifier information.

[0137] In one example, the PSS is uniquely determined by mod(N_ID, X), where mod is the modulo operation, N_ID is the cell ID, and X>=3 is a predefined value. mod(N_ID, X) can be understood as the intra-group ID.

[0138] Taking the PSS as uniquely determined by mod(N_ID, X) as an example, there may be multiple candidate PSSs and different candidate PSSs correspond to different indices. The candidate PSS with the value mod(N_ID, X) as the index is determined as the PSS.

[0139] Method 1A helps reduce the complexity of UE blind detection of PSS. At the same time, the PSS carries some cell ID information, which helps the terminal device identify the cell as early as possible.

[0140] Understandably, in mode 1A, the first type of SSB does not indicate the presence of the second type of SSB. Therefore, after detecting the first type of SSB, the terminal device needs to perform blind detection at the location where the second type of SSB may exist, for example, by detecting the SSS in the second type of SSB, in order to determine whether the second type of SSB exists.

[0141] In Method 1B, the PSS is determined jointly by the cell identification information and the cell access prohibition information.

[0142] In one example, the PSS is uniquely determined by mod(N_ID, X) and the cell access prohibition information.

[0143] Cell access prohibition information may include Y bits, where Y is an integer greater than or equal to 1. Different values ​​of this cell access prohibition information indicate different cell access prohibition conditions. In one example, if the cell access prohibition information includes 1 bit, a value of 0 indicates that access is allowed in the cell, and a value of 1 indicates that access is not allowed in the cell.

[0144] For method 1B, the transmission period of the first type of SSB is shorter, and the PSS included in the first type of SSB contains cell access prohibition information, which helps the terminal equipment to end the synchronization signal detection of the cell earlier.

[0145] In Method 1C, the PSS is determined jointly by the cell identification information, the cell access prohibition information, and the time information of the second type of SSB.

[0146] In one example, the PSS is uniquely determined by mod(N_ID, X), cell access prohibition information, and the time information of the second type of SSB.

[0147] The timing information for the second type of SSB may include Z bits, where Z is an integer greater than or equal to 1.

[0148] Taking the time information of the second type of SSB, which includes 1 bit, as an example, the time information of the second type of SSB indicates whether there is a second type of SSB within the current transmission period of the first type of SSB. In one example, when Z is 1, it means that there is a second type of SSB within the current transmission period of the first type of SSB; if the bit is 0, it means that there is no second type of SSB within the current transmission period of the first type of SSB.

[0149] Taking the time information of the second type of SSB as an example, which includes multiple bits, the time information of the second type of SSB indicates the time interval between the second type of SSB and the current first type of SSB.

[0150] In one example, Z is 2, 00 indicates that there is a second SSB in the current first SSB cycle, and 01, 10, 11 indicate that there is a second type of SSB in the next 1st, 2nd, and 3rd first cycles, respectively.

[0151] For method 1C, it can be explicitly indicated whether the terminal device needs to detect the second type of SSB in the current first cycle, which can avoid the power consumption of blindly detecting the second type of SSB by the terminal device.

[0152] In Method 1D, PSS is determined jointly by cell identification information and time information of the second type of SSB.

[0153] In one example, the PSS is uniquely determined by mod(N_ID, X) and the time information of the second type of SSB.

[0154] The information on the community identification and the time information for the second type of SSB can be found in the description above, and will not be repeated here.

[0155] In some embodiments, the master system information is carried through a first PBCH;

[0156] The auxiliary synchronization signal is time-division multiplexed with the first PBCH; and / or

[0157] The bandwidth occupied by the auxiliary synchronization signal is the same as that occupied by the first PBCH.

[0158] Understandably, the second type of SSB includes SSS and the first PBCH.

[0159] In the second type of SSB, the bandwidth of the SSS includes both the SSS and the SSS protection interval.

[0160] In one example, as shown in Figure 6, the second type of SSB includes PBCH and SSS, which are time-division multiplexed, and the bandwidth occupied by PBCH is the same as that occupied by SSS.

[0161] When the bandwidth occupied by the second type of SSB is the same as that of the first PBCH, the bandwidth of the second type of SB can be reduced.

[0162] In scenario 1, the terminal device can determine the symbol boundary of the network device after detecting the first type of SSB, and can detect the second type of SSB based on the relationship between the first type of SSB and the second type of SSB without performing continuous blind detection. This also helps to reduce the complexity and energy consumption of the UE.

[0163] For case 2, the first type of SSB includes PSS and SSS, and the second type of SSB includes MIB.

[0164] In some embodiments, the primary synchronization signal and / or the secondary synchronization signal are determined based on one or more of the following:

[0165] Community signage information;

[0166] The community prohibits access to information;

[0167] The time information of the second type of SSB.

[0168] The methods for determining PSS and / or SSS include, but are not limited to, one or more of the following:

[0169] Method 2A: PSS is uniquely determined by cell identifier information, and / or SSS is uniquely determined by cell identifier information.

[0170] Method 2A helps reduce the complexity of UE blind detection of PSS. At the same time, the PSS carries some cell ID information, which helps the terminal device identify the cell as early as possible.

[0171] Understandably, in mode 1A, the first type of SSB does not indicate the presence of the second type of SSB. Therefore, after detecting the first type of SSB, the terminal device needs to perform blind detection at the location where the second type of SSB may exist, for example, by detecting the SSS in the second type of SSB, in order to determine whether the second type of SSB exists.

[0172] Method 2B: The PSS is uniquely determined by the cell identification information and the cell access prohibition information, and the SSS is uniquely determined by the cell identification information; or, the PSS is uniquely determined by the cell identification information, and the SSS is uniquely determined by the cell identification information and the cell access prohibition information.

[0173] For method 2B, the transmission period of the first type of SSB is shorter. The first type of SSB contains cell access prohibition information, which helps the terminal equipment to end the synchronization signal detection of the cell earlier.

[0174] In method 2C, the PSS is uniquely determined by the cell identifier information, and the SSS is uniquely determined by the cell identifier information, the cell access prohibition information, and the time information of the second type of SSB; or,

[0175] The PSS is uniquely determined by the cell identifier information, the cell access prohibition information, and the time information of the second type of SSB; the SSS is uniquely determined by the cell identifier information; or,

[0176] The PSS is uniquely determined by the cell identifier information and the cell access prohibition information; the SSS is determined by the cell identifier information and the time information of the second type of SSB; or,

[0177] The PSS is uniquely determined by the cell identification information and the time information of the second type of SSB; the SSS is uniquely determined by the cell identification information and the cell access prohibition information; or;

[0178] The PSS is uniquely determined by the cell identification information and the cell access prohibition information, while the SSS is uniquely determined by the cell identification information, the cell access prohibition information, and the time information of the second type of SSB.

[0179] The PSS is uniquely determined by the cell identifier information, the cell access prohibition information, and the time information of the second type of SSB. The SSS is uniquely determined by the cell identifier information, the cell access prohibition information, and the time information of the second type of SSB.

[0180] For method 2C, it can be explicitly indicated whether the terminal device needs to detect the second type of SSB in the current first cycle, which can avoid the power consumption of blindly detecting the second type of SSB by the terminal device.

[0181] In method 2D, the PSS is uniquely determined by the cell identifier information and the time information of the second type of SSB; the SSS is uniquely determined by the cell identifier information and the time information of the second type of SSB; or,

[0182] The PSS is uniquely determined by the cell identifier information and the time information of the second type of SSB; the SSS is uniquely determined by the cell identifier information; or,

[0183] The PSS is uniquely determined by the cell identifier information, and the SSS is uniquely determined by the cell identifier information and the time information of the second type of SSB.

[0184] For a description of the cell access prohibition information and the time information of the second type of SSB, please refer to the description of the cell access prohibition information and the time information of the second type of SSB in Case 1. It will not be repeated here.

[0185] In some embodiments, the primary synchronization signal and the secondary synchronization signal are time-division multiplexed.

[0186] In the first type of SSB, the PSS and SSS are sent on different time domain resources, and the terminal device receives the PSS and SSS on different time domain resources.

[0187] In some embodiments, in the first type of SSB, the time-domain position of the primary synchronization signal and the time-domain position of the secondary synchronization signal are continuous in the time domain.

[0188] As shown in Figure 7, the PSS and SSS in the first type of SSB are adjacent in time.

[0189] In this embodiment of the application, the PSS and SSS included in the first type of SSB are continuous in time, which helps to reduce the duration occupied by the first type of SSB, thereby reducing the power consumption of the base station.

[0190] In some embodiments, in the first type of SSB, the time-domain position of the primary synchronization signal and the time-domain position of the secondary synchronization signal are spaced apart by a first number of time units.

[0191] As shown in Figure 8, the PSS and SSS in the first type of SSB are not adjacent in time.

[0192] There is an interval between PSS and SSS, which includes a first number of time units, which may be predefined.

[0193] In this embodiment of the application, the PSS and SSS included in the first type of SSB may have a specific time interval, which is beneficial to improving the accuracy of frequency estimation.

[0194] In some embodiments, the master system information is carried through a first PBCH;

[0195] When the time domain position of the primary synchronization signal is spaced apart from the time domain position of the secondary synchronization signal by a first number of time units, the first number of time units are used to transmit at least a portion of the PBCH in the first PBCH.

[0196] As shown in Figure 9, the interval between the PSS and SSS in the first type of SSB is used to transmit the PBCH portion.

[0197] Understandably, when a second type of SSB is transmitted within the first cycle of a first type of SSB, the time unit between the PSS and SSS in the first type of SSB is used to transmit a portion of the PBCH.

[0198] In this embodiment of the application, when the time unit between the PSS and SSS included in the first type of SSB is used to transmit part of the PBCH of the second type of SSB, time resources can be effectively utilized, the total duration occupied by the first type of SSB and the second type of SSB can be shortened, thereby reducing the power consumption of the base station.

[0199] In this embodiment, the SSS and MIB occupy consecutive OFDM symbols, with the OFDM symbols occupied by the MIB following those occupied by the SSS, or some of the OFDM symbols occupied by the MIB precede the SSS, while the remaining OFDM symbols occupied by the MIB follow the SSS. In some embodiments, the total number of consecutive OFDM symbols occupied by the SSS and MIB is less than or equal to four, which facilitates better coexistence with other systems, such as LTE and 5G systems, on the same spectrum.

[0200] In some embodiments, the bandwidth occupied by the PSS and the SSS of the first type of SSB are the same.

[0201] The bandwidth occupied by PSS includes the protection interval of PSS and PSS, and the bandwidth occupied by SSS includes the protection interval of SSS and SSS.

[0202] In scenario 2, the terminal device can accurately determine the symbol boundary of the network device after detecting the first type of SSB, and can detect the second type of SSB based on the relationship between the first type of SSB and the second type of SSB, without having to perform continuous blind detection. This also helps to reduce the complexity and energy consumption of the UE.

[0203] For case 3, the first type of SSB includes PSS, SSS and the first MIB, and the second type of SSB includes the second MIB.

[0204] Here, MIB includes a first MIB and a second MIB, with the first MIB included in a first type of SSB and the second MIB included in a second type of SSB.

[0205] The first type of SSB includes a primary synchronization signal, a secondary synchronization signal, and first primary system information;

[0206] The second type of SSB includes second master system information; the master system information includes the first master system information and the second master system information.

[0207] In some embodiments, the primary synchronization signal and / or the secondary synchronization signal are determined based on cell identification information.

[0208] In some embodiments, the information included in the first MIB may be time-invariant or finitely time-varying.

[0209] Time-invariant can be understood as not changing with time, that is, the first MIB included in different first SSBs remains unchanged.

[0210] Finite time-varying can be understood as not changing over a period of time, that is, the first MIB included in different first SSBs remains unchanged over a period of time.

[0211] The second MIB can be any information included in the MIB other than the first MIB.

[0212] In some embodiments, the first master system information includes one or more of the following:

[0213] The community prohibits access to information;

[0214] The second type of SSB time information;

[0215] Subcarrier spacing information of the second type of SSB;

[0216] The half-frame information containing the first main system information;

[0217] The highest N bits of the system frame number;

[0218] Cell reselection control indication information at the same frequency.

[0219] For an understanding of the cell access prohibition information and / or the time information of the second type of SSB, please refer to the description of the cell access prohibition information and / or the time information of the second type of SSB in Case 1, which will not be repeated here.

[0220] The half-frame information where the first MIB is located is the half-frame indication information, which indicates whether the first MIB is located in the first half-system frame or the second half-system frame of a system frame.

[0221] The system frame number contains the highest N bits, where N is an integer greater than or equal to 1. In one example, N is 4.

[0222] The intra-frequency cell reselection control indication information is used to control the terminal device to reselect to another intra-frequency cell when the highest priority cell is prohibited from access.

[0223] In some embodiments, in the first type of SSB, the primary synchronization signal and the secondary synchronization signal are time-division multiplexed.

[0224] In some embodiments, the time-domain position of the primary synchronization signal and the time-domain position of the secondary synchronization signal are continuous in the time domain.

[0225] In this embodiment, the PSS and SSS are continuous in time, which helps to reduce the duration occupied by the first type of SSB, thereby reducing the power consumption of the base station.

[0226] In some embodiments, the time-domain position of the primary synchronization signal and the time-domain position of the secondary synchronization signal are spaced apart by a second number of time units.

[0227] The number of time units between PSS and SSS, i.e., the second number, can be predefined.

[0228] In this embodiment of the application, the first quantity and the second quantity may be the same or different.

[0229] In this embodiment of the application, the PSS and SSS included in the first type of SSB may have a specific time interval, which is beneficial to improving the accuracy of frequency estimation.

[0230] In some embodiments, the first master system information is carried via a second PBCH;

[0231] The second PBCH is frequency-division multiplexed with the primary synchronization signal and / or the secondary synchronization signal.

[0232] In one example, where the time-domain locations of the PSS and SSS are temporally continuous, the second PBCH is frequency-division multiplexed with either the PSS or SSS.

[0233] Figure 10 illustrates several scenarios involving frequency division multiplexing of the first MIB when the PSS and SSS are continuous in the time domain. In Figure 1001, the first MIB includes the frequency bands located at both ends of the frequency bands occupied by the PSS and SSS in the frequency domain. In Figure 1002 or 1003, the frequency band occupied by the first MIB includes one end of the frequency bands occupied by the PSS and SSS in the frequency domain.

[0234] In some embodiments, the first master system information is carried via a second PBCH;

[0235] The second PBCH is time-division multiplexed with the primary synchronization signal and / or the secondary synchronization signal.

[0236] In one example, if the time-domain locations of the PSS and SSS are continuous or discontinuous in time, the second PBCH is time-division multiplexed with the PSS and SSS.

[0237] Figures 11 and 12 illustrate several time-division multiplexing scenarios for the PSS, SSS, and the first MIB. Figure 11 shows the case where the PSS and SSS are temporally continuous and the first MIB is time-division multiplexed. As shown in Figure 11, the first MIB can be temporally adjacent to either the PSS or the SSS. Figure 12 shows the case where the PSS and SSS are temporally discontinuous and the first MIB is time-division multiplexed. As shown in Figure 12, the first MIB can be temporally adjacent to either the PSS or the SSS.

[0238] In some embodiments, when there is a second number of time units between the time domain position of the primary synchronization signal and the time domain position of the secondary synchronization signal, the second number of time units are used to transmit the second PBCH.

[0239] Here, the first MIB is set on the time unit between the PSS and SSS.

[0240] As shown in Figure 13, when PSS and SSS are not discontinuous in time, the time interval between PSS and SSS is used for the first MIB.

[0241] In some embodiments, the second master system information is carried through a third PBCH, which is time-division multiplexed with the first type of SSB.

[0242] Here, the second type of SSB and the first type of SSB are time-division multiplexed, that is, they are transmitted on different time domain resources.

[0243] In one example, the first type of SSB and the second type of SSB are sequential in time.

[0244] For scenario 3, since the first type of SSB has a first MIB, it is not necessary to carry information other than the cell ID through the PSS or SSS, which can reduce the detection complexity of the PSS and SSS. In addition, the information carried in the first MIB is either time-invariant (such as cell access prohibition information, subcarrier spacing information of the second type of SSB) or finite time-variant (such as time information). Therefore, network equipment can transmit the first type of SSB without fully activating the BBU, which significantly reduces the energy consumption of the base station.

[0245] For case 4, the first type of SSB includes a PSS and a first MIB, while the second type of SSB includes an SSS and a second MIB, thereby reducing the number of OFDM symbols occupied by the second type of SSB.

[0246] The descriptions of PSS, the first MIB, and the second MIB in Case 4 can be found in the descriptions of PSS, the first MIB, and the second MIB in Case 3, and will not be repeated here.

[0247] In some embodiments, the PSS and the first MIB are frequency-division multiplexed or time-division multiplexed.

[0248] In some embodiments, when the PSS and the first MIB are time-division multiplexed, the bandwidth occupied by the PSS is the same as that occupied by the first MIB.

[0249] The bandwidth occupied by PSS includes the PSS and the PSS protection interval.

[0250] In some embodiments, the PSS and the first MIB may be continuous or discontinuous in time.

[0251] When the PSS and the first MIB are not time-separated, the time unit between the PSS and the first MIB can be used for the SSS.

[0252] The following will continue to introduce the first type of SSB and the second type of SSB, and the following content can be applied to any of the above situations 1 to 4.

[0253] In some embodiments, the bandwidth occupied by the first type of SSB is the same as that occupied by the second type of SSB.

[0254] In one example, the first type of SSB includes PSS, and the second type of SSB includes SSS and MIB. The time-frequency relationship between the first type of SSB and the second type of SSB is shown in Figure 14.

[0255] In one example, the first type of SSB includes PSS and SSS, and the second type of SSB includes MIB. The time-frequency relationship between the first type of SSB and the second type of SSB is shown in Figure 15.

[0256] In one example, the first type of SSB includes PSS and SSS, and a first MIB; the second type of SSB includes a second MIB. The time-frequency relationship between the first type of SSB and the second type of SSB is shown in Figures 16, 17, or 18. In Figure 16, PSS and SSS are temporally continuous, and these two sequences, PSS and SSS, are frequency-division multiplexed with the first MIB. In Figure 17, PSS and SSS are temporally continuous, and PSS and SSS are time-division multiplexed with the first MIB. In Figure 18, PSS and SSS are temporally discontinuous, and the time interval between PSS and SSS is used for the first MIB.

[0257] In this embodiment of the application, the bandwidth of the first type of SSB is the same as that of the second type of SSB, which can reduce the bandwidth of the second type of SSB and improve spectrum utilization.

[0258] In some embodiments, the first period is a predefined parameter.

[0259] The network device sends a first type of SSB based on a predefined first period, and the terminal device detects the first SSB of the first type based on the predefined first period.

[0260] In some embodiments,

[0261] The second period is a parameter selected by the network device, and the second period is any one of a plurality of third periods.

[0262] Network devices can flexibly select the second cycle; for example, network devices can send the second type of SSB at 20ms, 40ms, 80ms or 160ms.

[0263] When the second cycle is selected by the network device, the network device can send the selected second cycle to the terminal device, and the terminal device can detect the second type of SSB based on the second cycle.

[0264] In some embodiments, the network device in S401 sends a first type of SSB, including:

[0265] The network device sends a first type of SSB burst set in each first cycle, the first type of SSB burst set including multiple SSBs of the first type.

[0266] Accordingly, the terminal device described in S501 receives a first type of SSB, including:

[0267] The terminal device receives a first type of SSB burst set in each first cycle, the first type of SSB burst set including multiple SSBs of the first type.

[0268] In this embodiment of the application, all SSBs of the first type can be sent in the form of a first type of SSB burst set.

[0269] The first type of SSB burst set can be replaced by the description "first SSB burst set" or "first class of SSB burst set".

[0270] Within a first cycle, a network device can send a first type of SSB burst set, which contains multiple first type SSBs, each corresponding to a different index.

[0271] The first type of SSB burst set includes multiple different first type SSBs that can occupy different time domain resources, frequency domain resources, code domain resources, or spatial domain resources.

[0272] In one scenario, multiple SSBs of type 1 included in a first-type SSB burst set may be transmitted within a specific time range of a first cycle, for example, within a 5ms range of a first cycle.

[0273] When multiple Type I SSBs are concentrated and transmitted within a specific time range of a first period, the multiple Type I SSBs occupy a specific first time unit within that specific time range.

[0274] In some embodiments, the network device in S401 sends a second type of SSB, including:

[0275] The network device sends a second type of SSB burst set in each second cycle, the second type of SSB burst set including multiple SSBs of the second type.

[0276] Accordingly, the terminal device described in S501 receives the second type of SSB, including:

[0277] The terminal device receives a second type of SSB burst set in each second cycle, the second type of SSB burst set including multiple SSBs of the second type.

[0278] In this embodiment of the application, all SSBs of the second type can be sent in the form of a second type of SSB burst set.

[0279] The second type of SSB burst set can be replaced by the description of the second SSB burst set or the second class of SSB burst set.

[0280] Within a second cycle, a network device can send a second type of SSB burst set, which contains multiple second type SSBs, each corresponding to a different index.

[0281] The second type of SSB burst set includes multiple different second type SSBs that can occupy different time domain resources, frequency domain resources, code domain resources, or spatial domain resources.

[0282] In one scenario, multiple Type II SSBs included in a Type II SSB burst set may be transmitted within a specific time range of a Type II period, for example, within a 5ms range of a Type II period.

[0283] When multiple Type II SSBs are concentrated and transmitted within a specific time range of a second period, the multiple Type II SSBs occupy a specific second time unit within the specific time range.

[0284] In some embodiments, when the second period is M times the first period, the second type of SSB burst set in each second period corresponds to the first type of SSB burst set in the m-th first period in every M first periods;

[0285] The first type of SSB burst set and the second type of SSB burst set within the m-th first period are located in the same time range.

[0286] The value of m can be any value from 1 to M.

[0287] In the case of sending M first-type SSB burst sets, send 1 second-type SSB burst set, and send the second-type SSB burst set and the m-th first-type SSB burst set in the M first-type SSB burst sets within the same time range.

[0288] In one example, as shown in Figure 19, the first period is 10ms and the second period is 40ms. Then, every 4 first SSB burst sets are sent, a second SSB burst set is sent. Each second SSB burst set is within the same time range as the first SSB burst set sent within the 10ms period of the second burst set.

[0289] Understandably, the time range of the second type of SSB burst set and the m-th first type of SSB burst set in the M first type of SSB burst sets is smaller than the first period.

[0290] In some embodiments, the SSB burst set of the second type contains a plurality of SSBs of the second type, which correspond one-to-one with the SSBs of the first type contained in the SSB burst set of the first type in the m-th first period; the corresponding SSBs of the first type and the SSBs of the second type use the same spatial filter.

[0291] The second type of SSB burst set sent within the same range of a first period corresponds to each SSB in the first type of SSB burst set.

[0292] In one example, the first period is 10ms and the second period is 40ms. The second type of SSB burst set includes 8 second type SSBs with indices from 0 to 7, and the first type of SSB burst set includes 8 first type SSBs with indices from 0 to 7. Then, the first type SSB with index 0 corresponds to the second type SSB with index 0, the first type SSB with index 1 corresponds to the second type SSB with index 1, and so on, with the first type SSB with index 7 corresponding to the second type SSB with index 7.

[0293] In this embodiment of the application, SSBs of the first type and SSBs of the second type with the same burst concentration index are temporally adjacent and use the same spatial filter (i.e., the same downlink beam).

[0294] In one example, as shown in Figure 20, the period of a first-type SSB burst set is 10ms, and each SSB burst set contains four first-type SSBs with indices from 0 to 3. The period of a second-type SSB burst is 40ms, and each SSB burst set also contains four second-type SSBs with indices from 0 to 3. Within the time range where a second-type SSB burst exists, the second-type SSB with index i and the first-type SSB with index i are temporally adjacent and are transmitted using the same spatial filter, i = 0, 1, 2, 3.

[0295] In this embodiment of the application, when SSBs with the same index are transmitted using the same spatial filter (same downlink beam), the terminal device can use the channel of the first type of SSB to detect the second type of SSB, thereby improving the channel detection complexity.

[0296] In some embodiments, when the second period is M times the first period, the second type of SSB burst set is located in the m-th first period in every M first periods, and there is no first type of SSB burst set in the m-th period.

[0297] In the case of sending M-1 first-type SSB burst sets, send 1 second-type SSB burst set, and there are no first-type SSB burst sets in the first period where the second-type SSB burst set is located.

[0298] In one example, as shown in Figure 21, the first period is 10ms and the second period is 40ms. Then, every 3 first SSB burst sets are sent, one second SSB burst set is sent. Within 10ms of each second SSB burst set, no first SSB burst set is sent.

[0299] The signal transmission method and signal reception method provided in the embodiments of this application will be described in detail below with reference to specific application scenarios.

[0300] In this embodiment, at least two types of SSBs are used to provide the UE with time-frequency synchronization information and MIB, and each type of SSB is transmitted according to a specific period. In order to reduce the complexity of UE detection, the first type of SSB is transmitted at a fixed period (first transmission period), and the first transmission period is less than or equal to the transmission period of other types of SSBs, thereby avoiding the UE from searching for SSBs for a long time and also helping to reduce the transmission power consumption of the base station.

[0301] The first type of SSB can also provide partial time information of other types of SSB, thereby reducing the power consumption of the UE in obtaining synchronization and system information.

[0302] To reduce the power consumption of the base station, especially the power consumption of the base station BBU, the first type of SSB transmitted at different times remains unchanged, that is, the pre-stored first type of SSB is transmitted. In this way, the base station can transmit the first type of SSB without activating the BBU.

[0303] Each type of SSB can be transmitted in burst set form, meaning that multiple SSBs of the same type can be transmitted within a single period. Different SSBs occupy different time domain, frequency domain, code domain, or spatial domain resources and correspond to different indices. The base station can use the same or different downlink spatial filters (i.e., downlink beams) to transmit the different SSBs.

[0304] The following example uses two types of SSBs (Type I SSB and Type II SSB) for illustration.

[0305] Example 1: The first type of SSB contains only PSS, while the second type of SSB contains at least SSS and MIB.

[0306] In Example 1, the first type of SSB only includes a PSS, where the PSS can be an M-sequence modulated by BPSK, a Zadoff-Chu sequence, or other sequences with good autocorrelation and cross-correlation characteristics. The PSS occupies multiple consecutive subcarriers within an OFDM symbol, for example, 127 subcarriers.

[0307] There are three ways to determine PSS:

[0308] The first method: The PSS can be uniquely determined by the cell ID. For example, the PSS can be uniquely determined by mod(N_ID,X), where N_ID is the cell ID, and X>=3 is the standard preset value. This method helps reduce the complexity of blind detection of the PSS by the UE. At the same time, the PSS carries some cell ID information, which helps the UE identify the cell as early as possible. Since the first type of SSB does not indicate the existence of the second type of SSB in this method, after detecting the first type of SSB, the UE needs to perform blind detection at the location where the second type of SSB may exist. For example, it needs to detect the SSS in the second type of SSB to determine whether the second type of SSB exists.

[0309] The second method: The PSS can be jointly determined by the cell ID and cell access prohibition information. For example, the PSS is uniquely determined by mod(N_ID,X) and Y bits of cell access prohibition information, where N_ID and X have the same meaning as in the first method; Y is a specific value defined by the standard, and different values ​​of the Y bits represent different cell access prohibition conditions. For example, Y equals 1, and when the bit is 0 / 1, it means that the cell is allowed to access, and when it is 1 / 0, it means that access is not allowed. Since the transmission period of the first type of SSB is shorter, including cell access prohibition information in the PSS is beneficial for the UE to end the synchronization signal detection of the cell earlier. Similar to the first method, in this method, the UE also needs to determine whether the second type of SSB exists through blind detection.

[0310] The third method involves jointly determining the PSS (Priority Sequence Segment) based on the cell ID, cell access prohibition information, and the time information of the second type of SSB (Second Type SSB). For example, the PSS can be jointly determined by mod(N_ID,X), Y bits of cell access prohibition information, and Z bits of second type SSB time information. The meanings of N_ID, X, and Y are the same as in the first / second methods. Z is a standard preset value; different values ​​of Z represent different time positions of the second type of SSB. For example, Z can be 1 bit. When this bit is 1 / 0, it indicates that a second type of SSB exists within the current first type SSB transmission period; if it is 0 / 1, it indicates that there is no SSB within that period. This method explicitly indicates whether the UE needs to detect the second type of SSB in the current period, avoiding the power consumption of blindly detecting the second type of SSB.

[0311] The first type of SSB is transmitted according to a first transmission period, which is a standard preset value, such as 5ms, 10ms, 20ms, etc. Within one first transmission period, the base station can transmit a first type of SSB burst set, which contains multiple first type of SSBs, each corresponding to a different index. The multiple SSBs can be concentrated within a specific time range of one period, such as a 5ms range within one period, and the multiple first type of SSBs occupy a specific time unit within the specific time range.

[0312] The second type of SSB includes SSS and MIB. In order to reduce the bandwidth of the second type of SSB, the bandwidth of PBCH can be the same as that of SSS. The bandwidth of SSS includes the protection interval of SSS, as shown in Figure 14.

[0313] The transmission period of Type II SSBs is an integer multiple of the transmission period of Type I SSBs, and the base station can flexibly choose the transmission period of Type II SSBs. For example, the base station can transmit Type II SSBs at 20ms, 40ms, 80ms, or 160ms. If Type II SSBs exist, the Type II SSB burst set and the Type I SSB burst set are located within the same time range. Moreover, for any index of Type II SSBs, they should be temporally adjacent to Type I SSBs of the same index and transmitted using the same spatial filter (i.e., the same downlink beam), so that the UE can detect Type II SSBs using the channel information obtained from Type I SSBs, as shown in Figure 13.

[0314] In one example, as shown in Figure 20, the period of the first type of SSB burst set is 10ms, and each burst set contains 4 first type SSBs with indices from 0 to 3. The period of the second type of SSB burst set is 40ms, and each burst set also contains 4 second type SSBs with indices from 0 to 3. Within the time range where the second type of SSB burst set exists, the second type SSB with index i and the first type SSB with index i are temporally adjacent and are transmitted using the same spatial filter, i = 0, 1, 2, 3.

[0315] The advantage of Implementation Example 1 is that the first type of SSB only contains PSS, which can be sent in a shorter period of time, thereby reducing the power loss of the base station. In addition, the UE can also determine the symbol boundary of the base station after detecting the first type of SSB, and can detect the second type of SSB according to the relationship between the first type of SSB and the second type of SSB without performing continuous blind detection, which also helps to reduce the complexity and energy consumption of the UE.

[0316] Example 2: The first type of SSB includes PSS sequences and SSS sequences, and the second type of SSB includes MIB.

[0317] In this embodiment, the first type of SSB only includes PSS and SSS, where PSS can be an M-sequence modulated by BPSK, a Zadoff-Chu sequence, or other sequences with good autocorrelation and cross-correlation characteristics. As shown in Figure 7, PSS and SSS can be continuous in time, which helps to reduce the duration occupied by the first type of SSB, thereby reducing the power consumption of the base station. Alternatively, as shown in Figure 8, there can be a specific time interval between PSS and SSS, which helps to improve the accuracy of frequency estimation.

[0318] The determination of PSS and SSS includes the following three methods:

[0319] The first approach: In the first type of SSB, the PSS and / or SSS can be uniquely determined by the cell ID. For example, the PSS is uniquely determined by mod(N_ID,X), where N_ID is the cell ID, and X>=3, which is the standard preset value. The SSS is uniquely determined by the cell ID. This approach helps reduce the complexity of blind detection of PSS and SSS by the UE.

[0320] In this approach, the first type of SSB does not indicate the presence of the second type of SSB. Therefore, after the UE detects the first type of SSB, it needs to perform blind detection at locations where the second type of SSB may exist. For example, it needs to detect the SSS in the second type of SSB to determine whether the second type of SSB exists.

[0321] The second method: The PSS and / or SSS of the first type of SSB can be jointly determined by the cell ID and the cell access prohibition information. For example, the PSS is uniquely determined by mod(N_ID,X) and Y bits of cell access prohibition information, where the meanings of N_ID and X are the same as in the first method. The SSS sequence is uniquely determined by the cell ID. Alternatively, the PSS is uniquely determined by mod(N_ID,X), where the meanings of N_ID and X are the same as in the first method; the SSS is determined by the cell ID and Y bits of cell access prohibition information.

[0322] Y is a specific value defined by the standard. Different values ​​of the Y bit represent different cell access prohibition conditions. For example, Y equals 1. When the bit is 0 / 1, it means that access is allowed in the cell, and when it is 1 / 0, it means that access is not allowed. The SSS sequence is uniquely determined by the cell ID.

[0323] Because the transmission period of Type I SSBs is shorter, including cell access prohibition information in Type I SSBs helps the UE end the synchronization signal detection for that cell earlier. Similar to the first method, in this method, the UE also needs to determine the presence of a Type II SSB through blind detection.

[0324] The third method: The PSS and / or SSS in the first type of SSB can be jointly determined by the cell ID, the cell access prohibition information, and the time information of the second type of SSB, for example:

[0325] The PSS is uniquely determined by mod(N_ID,X) and Y bits of cell access prohibition information. The SSS is jointly determined by the cell ID and the time information of the second type SSB. This method can achieve a balance of information carried by the PSS and SSS, which helps to reduce the detection complexity of the PSS and SSS.

[0326] Alternatively, the PSS can be uniquely determined by mod(N_ID,X), and the SSS can be jointly determined by the cell ID, Y bits of cell access prohibition information, and Z bits of second-type SSB time information. This method can minimize the detection complexity of the PSS.

[0327] Alternatively, the PSS can be determined jointly by the cell ID, cell access prohibition information, and the time information of the second type SSS. The SSS is uniquely determined by the cell ID.

[0328] In this context, N_ID, X, and Y have the same meanings as in the first / second methods. Z is a standard preset value, and different values ​​of Z represent different time positions of the second type of SSB. For example, Z can be 1 bit. When this bit is 1 / 0, it indicates that there is a second type of SSB in the current first type of SSB transmission period. If it is 0 / 1, it indicates that there is no SSB in that period.

[0329] The first type of SSB is transmitted according to a first transmission period, which is a standard preset value, such as 5ms, 10ms, 20ms, etc. Within one first transmission period, the base station can transmit one first type of SSB burst, which contains multiple first type of SSBs, each corresponding to a different index. The multiple first type of SSBs can be concentrated within a specific time range of one period, such as within 5ms of one period, and the multiple first type of SSBs occupy a specific time unit within the specific time range.

[0330] The second type of SSB includes the MIB. To reduce the bandwidth of the second type of SSB, the bandwidth of the PBCH can be the same as that of the first type of SSB. The bandwidth of the first type of SSB includes the guard intervals of the PSS and SSS. When the PSS and SSS in the first type of SSB are temporally adjacent, the time-frequency relationship between the first type of SSB and the second type of SSB is shown in Figure 15. When the PSS and SSS in the first type of SSB are not temporally adjacent, the time-frequency relationship between the first type of SSB and the second type of SSB is shown in Figure 9.

[0331] The transmission period of Type II SSBs is an integer multiple of the transmission period of Type I SSBs, and the base station can flexibly choose the transmission period of Type II SSBs. For example, the base station can transmit Type II SSBs at 20ms, 40ms, 80ms, or 160ms. As shown in Figure 15 or Figure 9, if Type II SSBs exist, the Type II SSB burst set and the Type I SSB burst set are located within the same time range. Moreover, for any index of Type II SSBs, they should be temporally adjacent to Type I SSBs of the same index and transmitted using the same spatial filter (i.e., the same downlink beam), so that the UE can detect Type II SSBs using the channel information (channel estimation results) obtained from Type I SSBs.

[0332] Example 3: The first type of SSB includes a PSS, an SSS, and a first MIB; the second type of SSB includes a second MIB.

[0333] In this embodiment, the first type of SSB includes only PSS, SSS, and the first MIB. The PSS can be an M-sequence modulated by BPSK, a Zadoff-Chu sequence, or other sequences with good autocorrelation and cross-correlation characteristics. The PSS and SSS can be continuous in time, which helps reduce the duration occupied by the first type of SSB, thereby reducing the power consumption of the base station. The first MIB and PSS / SSS can employ frequency division multiplexing as shown in Figure 10, or time division multiplexing as shown in Figure 11. Frequency division multiplexing helps reduce the duration occupied by the first SSB, while time division multiplexing can increase the amount of information carried by the first MIB. Alternatively, there can be a specific time interval between the PSS and SSS, which helps improve the accuracy of frequency estimation. The first MIB and PSS / SSS can be time-division multiplexed, located between the PSS and SSS, as shown in Figure 13.

[0334] In this embodiment, because the first MIB can carry a portion of the information, the PSS and SSS can be determined solely based on the cell ID. Preferably, the information carried in the first MIB is time-invariant or finitely time-variant, allowing the base station to send the first type of SSB within a shorter period without activating the BBU. For example, the first MIB can carry one or more of the following information:

[0335] Y bits represent cell access prohibition information. Different values ​​of Y bits represent different cell access prohibition conditions. For example, when Y equals 1, when the bit is 0 / 1, it means that the cell allows access, and when it is 1 / 0, it means that access is not allowed.

[0336] The second type of SSB time information is represented by Z bits, where Z is a standard preset value. Different values ​​of Z represent different time positions of the second type of SSB. For example, Z can be only 1 bit. When this bit is 1 / 0, it indicates that there is a second type of SSB in the current first type of SSB transmission cycle. If it is 0 / 1, it indicates that there is no SSB in the cycle. Z can also be multiple bits used to indicate the time interval of the second SSB. For example, Z=2, then 00 indicates that there is a second type of SSB in the current first SSB cycle, and 01, 10, 11 indicate that there is a second type of SSB in the next 1st, 2nd, and 3rd first SSB cycles, respectively.

[0337] Subcarrier spacing information of the second SSB;

[0338] Timing information, such as: the half-frame indication of the first MIB, i.e., whether it is the first or second system frame of a system frame. And / or, the highest A bits of the system frame number, e.g., A=4;

[0339] The intra-frequency cell reselection control indication information is used to control the UE to reselect to another intra-frequency cell when access is prohibited in the highest priority cell.

[0340] The first type of SSB is transmitted according to a first transmission period, which is a standard preset value, such as 5ms, 10ms, 20ms, etc. Within one first transmission period, the base station can transmit a first type of SSB burst set, which contains multiple first type of SSBs, each corresponding to a different index. The multiple SSBs can be concentrated within a specific time range of one period, such as a 5ms range within one period, and the multiple first type of SSBs occupy a specific time unit within the specific time range.

[0341] The second type of SSB includes a second MIB. To reduce the bandwidth of the second type of SSB, the bandwidth of the second MIB can be the same as that of the first type of SSB. The bandwidth of the first SSB includes the guard interval between the PSS and the SSS. When the PSS and SSS are adjacent in the time domain, the time-frequency domain relationship between the first type of SSB and the second type of SSB is shown in Figure 16 or Figure 17. When there is an interval between the PSS and SSS in the time domain, the time-frequency domain relationship between the first type of SSB and the second type of SSB is shown in Figure 18.

[0342] In this embodiment, because of the presence of the first MIB, there is no need to carry information other than the cell ID through the PSS or SSS, thus reducing the detection complexity of the PSS and SSS. Furthermore, the information carried in the first MIB is either time-invariant (such as cell access prohibition information, subcarrier spacing information of the second type of SSB) or finite time-varying (such as time information), so the base station can transmit the first SSB without fully activating the BBU, significantly reducing the base station's energy consumption.

[0343] In this embodiment of the application, the base station transmits two types of SSBs. The time domain and / or frequency domain resources occupied by the first type of SSB are less than those occupied by the second type of SSB, and the transmission period of the first type of SSB is less than or equal to the transmission period of the second type of SSB.

[0344] • Type 1 SSBs provide at least time synchronization information. In addition, they can provide information on whether the cell allows access (bar) and time information for Type 2 SSBs, etc.

[0345] • Class II SSBs must contain at least a MIB.

[0346] There is a temporal correspondence between Type I SSBs and Type II SSBs.

[0347] 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.

[0348] 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.

[0349] Figure 22 is a schematic diagram of the structural composition of a network device 2200 provided in an embodiment of this application. As shown in Figure 22, the network device 2200 includes:

[0350] The first communication unit 2201 is configured to transmit a first type of SSB and a second type of SSB;

[0351] Wherein, the first period during which the network device sends the first type of SSB is less than or equal to the second period during which the network device sends the second type of SSB.

[0352] In some embodiments, the second period is M times the first period, where M is an integer greater than or equal to 1.

[0353] In some embodiments,

[0354] The time-domain resources occupied by the first type of SSB are less than or equal to the time-domain resources occupied by the second type of SSB; and / or,

[0355] The frequency domain resources occupied by the first type of SSB are less than or equal to the frequency domain resources occupied by the second type of SSB.

[0356] In some embodiments, the first type of SSB is used to determine one or more of the following:

[0357] Time synchronization information;

[0358] Frequency synchronization information;

[0359] The community prohibits access to information;

[0360] The time information of the second type of SSB.

[0361] In some embodiments,

[0362] The first type of SSB includes a master synchronization signal;

[0363] The second type of SSB includes secondary synchronization signals and primary system information.

[0364] In some embodiments, the master synchronization signal is determined based on one or more of the following:

[0365] Community signage information;

[0366] The community prohibits access to information;

[0367] The time information of the second type of SSB.

[0368] In some embodiments, the master system information is carried through a first PBCH;

[0369] The auxiliary synchronization signal is time-division multiplexed with the first PBCH; and / or

[0370] The bandwidth occupied by the auxiliary synchronization signal is the same as that occupied by the first PBCH.

[0371] In some embodiments,

[0372] The first type of SSB includes a primary synchronization signal and a secondary synchronization signal;

[0373] The second type of SSB includes master system information.

[0374] In some embodiments, the primary synchronization signal and / or the secondary synchronization signal are determined based on one or more of the following:

[0375] Community signage information;

[0376] The community prohibits access to information;

[0377] The time information of the second type of SSB.

[0378] In some embodiments,

[0379] The primary synchronization signal and the secondary synchronization signal are time-division multiplexed.

[0380] In some embodiments, in the first type of SSB, the time-domain position of the primary synchronization signal and the time-domain position of the secondary synchronization signal are continuous in the time domain.

[0381] In some embodiments, in the first type of SSB, the time-domain position of the primary synchronization signal and the time-domain position of the secondary synchronization signal are spaced apart by a first number of time units.

[0382] In some embodiments, the master system information is carried through a first PBCH;

[0383] When the time domain position of the primary synchronization signal is spaced apart from the time domain position of the secondary synchronization signal by a first number of time units, the first number of time units are used to transmit at least a portion of the PBCH in the first PBCH.

[0384] In some embodiments,

[0385] The first type of SSB includes a primary synchronization signal, a secondary synchronization signal, and first primary system information;

[0386] The second type of SSB includes second master system information; the master system information includes the first master system information and the second master system information.

[0387] In some embodiments, the primary synchronization signal and / or the secondary synchronization signal are determined based on cell identification information.

[0388] In some embodiments, the first master system information includes one or more of the following:

[0389] The community prohibits access to information;

[0390] The second type of SSB time information;

[0391] Subcarrier spacing information of the second type of SSB;

[0392] The half-frame information containing the first main system information;

[0393] The highest N bits of the system frame number;

[0394] Cell reselection control indication information at the same frequency.

[0395] In some embodiments, in the first type of SSB, the primary synchronization signal and the secondary synchronization signal are time-division multiplexed.

[0396] In some embodiments, the time-domain position of the primary synchronization signal and the time-domain position of the secondary synchronization signal are continuous in the time domain.

[0397] In some embodiments, the time-domain position of the primary synchronization signal and the time-domain position of the secondary synchronization signal are spaced apart by a second number of time units.

[0398] In some embodiments, the first master system information is carried via a second PBCH;

[0399] The second PBCH is frequency-division multiplexed with the primary synchronization signal and / or the secondary synchronization signal.

[0400] In some embodiments, the first master system information is carried via a second PBCH;

[0401] The second PBCH is time-division multiplexed with the primary synchronization signal and / or the secondary synchronization signal.

[0402] In some embodiments, when there is a second number of time units between the time domain position of the primary synchronization signal and the time domain position of the secondary synchronization signal, the second number of time units are used to transmit the second PBCH.

[0403] In some embodiments, the second master system information is carried through a third PBCH, which is time-division multiplexed with the first type of SSB.

[0404] In some embodiments, the timing information of the second type of SSB indicates one or more of the following:

[0405] Does the current first cycle include SSBs of the second type?

[0406] The duration of the interval between the first type of SSB and the second type of SSB.

[0407] In some embodiments, the bandwidth occupied by the first type of SSB is the same as that occupied by the second type of SSB.

[0408] In some embodiments, the first period is a predefined parameter.

[0409] In some embodiments, the second period is a parameter selected by the network device, and the second period is any one of a plurality of third periods.

[0410] In some embodiments, the first communication unit 2201 is further configured to transmit a first type of SSB burst set in each of the first cycles, the first type of SSB burst set including a plurality of SSBs of the first type.

[0411] In some embodiments, the first communication unit 2201 is further configured to send a second type of SSB burst set in each second cycle, the second type of SSB burst set including a plurality of second type SSBs.

[0412] In some embodiments, when the second period is M times the first period, the second type of SSB burst set in each second period corresponds to the first type of SSB burst set in the m-th first period in every M first periods;

[0413] The first type of SSB burst set and the second type of SSB burst set within the m-th first period are located in the same time range.

[0414] In some embodiments, the SSB burst set of the second type contains a plurality of SSBs of the second type, which correspond one-to-one with the SSBs of the first type contained in the SSB burst set of the first type in the m-th first period; the corresponding SSBs of the first type and the SSBs of the second type use the same spatial filter.

[0415] Those skilled in the art should understand that the description of the network device in the embodiments of this application can be understood with reference to the description of the signal transmission method in the embodiments of this application.

[0416] Figure 23 is a schematic diagram of the structural composition of a terminal device 2300 provided in an embodiment of this application. As shown in Figure 23, the terminal device 2300 includes:

[0417] The second communication unit 2301 is configured to receive a first type of synchronization signal block SSB and / or a second type of SSB;

[0418] Wherein, the first period during which the terminal device receives the first type of SSB is less than or equal to the second period during which the terminal device receives the second type of SSB.

[0419] In some embodiments, the second period is M times the first period, where M is an integer greater than or equal to 1.

[0420] In some embodiments,

[0421] The time-domain resources occupied by the first type of SSB are less than or equal to the time-domain resources occupied by the second type of SSB; and / or,

[0422] The frequency domain resources occupied by the first type of SSB are less than or equal to the frequency domain resources occupied by the second type of SSB.

[0423] In some embodiments, the first type of SSB is used to determine one or more of the following:

[0424] Time synchronization information;

[0425] Frequency synchronization information;

[0426] The community prohibits access to information;

[0427] The time information of the second type of SSB.

[0428] In some embodiments,

[0429] The first type of SSB includes a master synchronization signal;

[0430] The second type of SSB includes secondary synchronization signals and primary system information.

[0431] In some embodiments, the master synchronization signal is determined based on one or more of the following:

[0432] Community signage information;

[0433] The community prohibits access to information;

[0434] The time information of the second type of SSB.

[0435] In some embodiments, the master system information is carried through a first PBCH;

[0436] The auxiliary synchronization signal is time-division multiplexed with the first PBCH; and / or

[0437] The bandwidth occupied by the auxiliary synchronization signal is the same as that occupied by the first PBCH.

[0438] In some embodiments,

[0439] The first type of SSB includes a primary synchronization signal and a secondary synchronization signal;

[0440] The second type of SSB includes master system information.

[0441] In some embodiments, the primary synchronization signal and / or the secondary synchronization signal are determined based on one or more of the following:

[0442] Community signage information;

[0443] The community prohibits access to information;

[0444] The time information of the second type of SSB.

[0445] In some embodiments, the primary synchronization signal and the secondary synchronization signal are time-division multiplexed.

[0446] In some embodiments, in the first type of SSB, the time-domain position of the primary synchronization signal and the time-domain position of the secondary synchronization signal are continuous in the time domain.

[0447] In some embodiments, in the first type of SSB, the time-domain position of the primary synchronization signal and the time-domain position of the secondary synchronization signal are spaced apart by a first number of time units.

[0448] In some embodiments, the master system information is carried through a first PBCH;

[0449] When the time domain position of the primary synchronization signal is spaced apart from the time domain position of the secondary synchronization signal by a first number of time units, the first number of time units are used to transmit at least a portion of the PBCH in the first PBCH.

[0450] In some embodiments,

[0451] The first type of SSB includes a primary synchronization signal, a secondary synchronization signal, and first primary system information;

[0452] The second type of SSB includes second master system information; the master system information includes the first master system information and the second master system information.

[0453] In some embodiments, the primary synchronization signal and / or the secondary synchronization signal are determined based on cell identification information.

[0454] In some embodiments, the first master system information includes one or more of the following:

[0455] The community prohibits access to information;

[0456] The second type of SSB time information;

[0457] Subcarrier spacing information of the second type of SSB;

[0458] The half-frame information containing the first main system information;

[0459] The highest N bits of the system frame number;

[0460] Cell reselection control indication information at the same frequency.

[0461] In some embodiments, in the first type of SSB, the primary synchronization signal and the secondary synchronization signal are time-division multiplexed.

[0462] In some embodiments, the time-domain position of the primary synchronization signal and the time-domain position of the secondary synchronization signal are continuous in the time domain.

[0463] In some embodiments, the time-domain position of the primary synchronization signal and the time-domain position of the secondary synchronization signal are spaced apart by a second number of time units.

[0464] In some embodiments, the first master system information is carried via a second PBCH;

[0465] The second PBCH is frequency-division multiplexed with the primary synchronization signal and / or the secondary synchronization signal.

[0466] In some embodiments, the first master system information is carried via a second PBCH;

[0467] The second PBCH is time-division multiplexed with the primary synchronization signal and / or the secondary synchronization signal.

[0468] In some embodiments, when there is a second number of time units between the time domain position of the primary synchronization signal and the time domain position of the secondary synchronization signal, the second number of time units are used to transmit the second PBCH.

[0469] In some embodiments, the second master system information is carried through a third PBCH, which is time-division multiplexed with the first type of SSB.

[0470] In some embodiments, the timing information of the second type of SSB indicates one or more of the following:

[0471] Does the current first cycle include SSBs of the second type?

[0472] The duration of the interval between the first type of SSB and the second type of SSB.

[0473] In some embodiments, the bandwidth occupied by the first type of SSB is the same as that occupied by the second type of SSB.

[0474] In some embodiments, the first period is a predefined parameter.

[0475] In some embodiments, the second period is a parameter selected by the network device, and the second period is any one of a plurality of third periods.

[0476] In some embodiments, the second communication unit 2301 is further configured to receive a first type of SSB burst set in each of the first cycles, the first type of SSB burst set including a plurality of SSBs of the first type.

[0477] In some embodiments, the second communication unit 2301 is further configured to receive a second type of SSB burst set in each second cycle, the second type of SSB burst set including a plurality of SSBs of the second type.

[0478] In some embodiments, when the second period is M times the first period, the second type of SSB burst set in each second period corresponds to the first type of SSB burst set in the m-th first period in every M first periods;

[0479] The first type of SSB burst set and the second type of SSB burst set within the m-th first period are located in the same time range.

[0480] In some embodiments, the SSB burst set of the second type contains a plurality of SSBs of the second type, which correspond one-to-one with the SSBs of the first type contained in the SSB burst set of the first type in the m-th first period; the corresponding SSBs of the first type and the SSBs of the second type use the same spatial filter.

[0481] The description of the terminal device in the embodiments of this application can be understood by referring to the description of the signal receiving method in the embodiments of this application.

[0482] Figure 24 is a schematic structural diagram of a communication device 2400 provided in an embodiment of this application. This communication device can be a terminal device or a network device. The communication device 2400 shown in Figure 24 includes a processor 2410, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0483] Optionally, as shown in FIG24, the communication device 2400 may further include a memory 2420. The processor 2410 may retrieve and run computer programs from the memory 2420 to implement the methods in the embodiments of this application.

[0484] The memory 2420 can be a separate device independent of the processor 2410, or it can be integrated into the processor 2410.

[0485] Optionally, as shown in FIG24, the communication device 2400 may further include a transceiver 2430, and the processor 2410 may control the transceiver 2430 to communicate with other devices. Specifically, it may send information or data to other devices or receive information or data sent by other devices.

[0486] The transceiver 2430 may include a transmitter and a receiver. The transceiver 2430 may further include an antenna, which may be one or more.

[0487] Optionally, the communication device 2400 may specifically be a network device in the embodiments of this application, and the communication device 2400 may implement the corresponding processes implemented by the 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.

[0488] Optionally, the communication device 2400 may specifically be a terminal device in the embodiments of this application, and the communication device 2400 may 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.

[0489] Figure 25 is a schematic structural diagram of a chip according to an embodiment of this application. The chip 2500 shown in Figure 25 includes a processor 2510, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0490] Optionally, as shown in FIG25, chip 2500 may further include memory 2520. Processor 2510 can retrieve and run computer programs from memory 2520 to implement the methods in the embodiments of this application.

[0491] The memory 2520 can be a separate device independent of the processor 2510, or it can be integrated into the processor 2510.

[0492] Optionally, the chip 2500 may also include an input interface 2530. The processor 2510 can control the input interface 2530 to communicate with other devices or chips; specifically, it can acquire information or data sent by other devices or chips.

[0493] Optionally, the chip 2500 may also include an output interface 2540. The processor 2510 can control the output interface 2540 to communicate with other devices or chips, specifically, to output information or data to other devices or chips.

[0494] Optionally, the chip can be applied to the network device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the 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.

[0495] Optionally, 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.

[0496] 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.

[0497] Figure 26 is a schematic block diagram of a communication system 2600 provided in an embodiment of this application. As shown in Figure 26, the communication system 2600 includes a terminal device 2610 and a network device 2620.

[0498] The network device can be used to implement the corresponding functions implemented by the network device in the above method, and the terminal device can be used to implement the corresponding functions implemented by the terminal device in the above method. For the sake of brevity, these will not be elaborated further here.

[0499] 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.

[0500] 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.

[0501] It should be understood that the above-described memory is exemplary and not a limiting description. For example, the memory in the embodiments of this application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DR RAM), etc. That is to say, the memory in the embodiments of this application is intended to include, but is not limited to, these and any other suitable types of memory.

[0502] This application also provides a computer-readable storage medium for storing computer programs.

[0503] Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of this application, and the computer program causes the computer to execute the corresponding processes implemented by the 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.

[0504] Optionally, 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.

[0505] This application also provides a computer program product, including computer program instructions.

[0506] Optionally, the computer program product can be applied to the network device in the embodiments of this application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the 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.

[0507] Optionally, 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.

[0508] This application also provides a computer program.

[0509] Optionally, the computer program can be applied to the network device in the embodiments of this application. When the computer program is run on the computer, it causes the computer to execute the corresponding processes implemented by the 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.

[0510] Optionally, the computer program can be applied to the terminal device in the embodiments of this application. When the computer program is run on the 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.

[0511] 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.

[0512] 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.

[0513] In the several 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 coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0514] 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.

[0515] 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.

[0516] 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, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0517] 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 transmission method, the method comprising: The network device sends both the first type of SSB and the second type of SSB. Wherein, the first period during which the network device sends the first type of SSB is less than or equal to the second period during which the network device sends the second type of SSB.

2. The method according to claim 1, wherein, The second period is M times the first period, where M is an integer greater than or equal to 1.

3. The method according to claim 1 or 2, wherein, The time-domain resources occupied by the first type of SSB are less than or equal to the time-domain resources occupied by the second type of SSB; And / or, The frequency domain resources occupied by the first type of SSB are less than or equal to the frequency domain resources occupied by the second type of SSB.

4. The method according to any one of claims 1-3, wherein, The first type of SSB is used to determine one or more of the following: Time synchronization information; Frequency synchronization information; The community prohibits access to information; The time information of the second type of SSB.

5. The method according to any one of claims 1-4, wherein, The first type of SSB includes a master synchronization signal; The second type of SSB includes secondary synchronization signals and primary system information.

6. The method according to claim 5, wherein, The primary synchronization signal is determined based on one or more of the following: Community signage information; The community prohibits access to information; The time information of the second type of SSB.

7. The method according to claim 5 or 6, wherein, The main system information is carried through the first PBCH; The auxiliary synchronization signal is time-division multiplexed with the first PBCH; and / or The bandwidth occupied by the auxiliary synchronization signal is the same as that occupied by the first PBCH.

8. The method according to any one of claims 1-4, wherein, The first type of SSB includes a primary synchronization signal and a secondary synchronization signal; The second type of SSB includes master system information.

9. The method according to claim 8, wherein, The primary synchronization signal and / or the secondary synchronization signal are determined based on one or more of the following: Community signage information; The community prohibits access to information; The time information of the second type of SSB.

10. The method according to claim 8 or 9, wherein, The primary synchronization signal and the secondary synchronization signal are time-division multiplexed.

11. The method according to claim 10, wherein, In the first type of SSB, the time-domain position of the primary synchronization signal is continuous with the time-domain position of the secondary synchronization signal in the time domain.

12. The method according to claim 10, wherein, In the first type of SSB, the time-domain position of the primary synchronization signal and the time-domain position of the secondary synchronization signal are spaced apart by a first number of time units.

13. The method according to claim 12, wherein, The main system information is carried through the first PBCH; When the time domain position of the primary synchronization signal is spaced apart from the time domain position of the secondary synchronization signal by a first number of time units, the first number of time units are used to transmit at least a portion of the PBCH in the first PBCH.

14. The method according to any one of claims 1-4, wherein, The first type of SSB includes a primary synchronization signal, a secondary synchronization signal, and first primary system information; The second type of SSB includes second master system information; the master system information includes the first master system information and the second master system information.

15. The method according to claim 14, wherein, The primary synchronization signal and / or the secondary synchronization signal are determined based on cell identification information.

16. The method according to claim 14 or 15, wherein, The first main system information includes one or more of the following: The community prohibits access to information; The second type of SSB time information; Subcarrier spacing information of the second type of SSB; The half-frame information containing the first main system information; The highest N bits of the system frame number; Cell reselection control indication information at the same frequency.

17. The method according to any one of claims 14-16, wherein, In the first type of SSB, the primary synchronization signal and the secondary synchronization signal are time-division multiplexed.

18. The method according to claim 17, wherein, The time-domain position of the primary synchronization signal is continuous with the time-domain position of the secondary synchronization signal in the time domain.

19. The method according to claim 17, wherein, The time-domain position of the primary synchronization signal is spaced apart from the time-domain position of the secondary synchronization signal by a second number of time units.

20. The method according to any one of claims 14-19, wherein, The first main system information is carried through the second PBCH; The second PBCH is frequency-division multiplexed with the primary synchronization signal and / or the secondary synchronization signal.

21. The method according to any one of claims 14-19, wherein, The first main system information is carried through the second PBCH; The second PBCH is time-division multiplexed with the primary synchronization signal and / or the secondary synchronization signal.

22. The method according to claim 21, wherein, When there is a second number of time units between the time domain position of the primary synchronization signal and the time domain position of the secondary synchronization signal, the second number of time units are used to transmit the second PBCH.

23. The method according to any one of claims 14-22, wherein, The second master system information is carried through a third PBCH, which is time-division multiplexed with the first type of SSB.

24. The method according to claim 6, 9, or 16, wherein, The second type of SSB time information indicates one or more of the following: Does the current first cycle include SSBs of the second type? The duration of the interval between the first type of SSB and the second type of SSB.

25. The method according to any one of claims 1-24, wherein, The bandwidth occupied by the first type of SSB is the same as that occupied by the second type of SSB.

26. The method according to any one of claims 1-25, wherein, The first cycle is a predefined parameter.

27. The method according to any one of claims 1-26, wherein, The second period is a parameter selected by the network device, and the second period is any one of a plurality of third periods.

28. The method according to any one of claims 1-27, wherein, The network device sends a first type of SSB, including: The network device sends a first type of SSB burst set in each first cycle, the first type of SSB burst set including multiple SSBs of the first type.

29. The method according to any one of claims 1-28, wherein, The network device sends a second type of SSB, including: The network device sends a second type of SSB burst set in each second cycle, the second type of SSB burst set including multiple SSBs of the second type.

30. The method according to claim 29, wherein, When the second period is M times the first period, the second type of SSB burst set in each second period corresponds to the first type of SSB burst set in the m-th first period in every M first periods; The first type of SSB burst set and the second type of SSB burst set within the m-th first period are located in the same time range.

31. The method according to claim 30, wherein, The SSB burst set of the second type contains multiple SSBs of the second type, which correspond one-to-one with the SSBs of the first type contained in the SSB burst set of the first type in the m-th first period; the corresponding SSBs of the first type and the SSBs of the second type use the same spatial filter.

32. A signal receiving method, the method comprising: The terminal device receives a first type of synchronization signal block (SSB) and / or a second type of SSB; Wherein, the first period during which the terminal device receives the first type of SSB is less than or equal to the second period during which the terminal device receives the second type of SSB.

33. The method according to claim 32, wherein, The second period is M times the first period, where M is an integer greater than or equal to 1.

34. The method according to claim 32 or 33, wherein, The time-domain resources occupied by the first type of SSB are less than or equal to the time-domain resources occupied by the second type of SSB; And / or, The frequency domain resources occupied by the first type of SSB are less than or equal to the frequency domain resources occupied by the second type of SSB.

35. The method according to any one of claims 32-34, wherein, The first type of SSB is used to determine one or more of the following: Time synchronization information; Frequency synchronization information; The community prohibits access to information; The time information of the second type of SSB.

36. The method according to any one of claims 32-35, wherein, The first type of SSB includes a master synchronization signal; The second type of SSB includes secondary synchronization signals and primary system information.

37. The method according to claim 36, wherein, The primary synchronization signal is determined based on one or more of the following: Community signage information; The community prohibits access to information; The time information of the second type of SSB.

38. The method according to claim 36 or 37, wherein, The main system information is carried through the first PBCH; The auxiliary synchronization signal is time-division multiplexed with the first PBCH; and / or The bandwidth occupied by the auxiliary synchronization signal is the same as that occupied by the first PBCH.

39. The method according to any one of claims 32-35, wherein, The first type of SSB includes a primary synchronization signal and a secondary synchronization signal; The second type of SSB includes master system information.

40. The method according to claim 39, wherein, The primary synchronization signal and / or the secondary synchronization signal are determined based on one or more of the following: Community signage information; The community prohibits access to information; The time information of the second type of SSB.

41. The method according to claim 39 or 40, wherein, The primary synchronization signal and the secondary synchronization signal are time-division multiplexed.

42. The method according to claim 41, wherein, In the first type of SSB, the time-domain position of the primary synchronization signal is continuous with the time-domain position of the secondary synchronization signal in the time domain.

43. The method according to claim 41, wherein, In the first type of SSB, the time-domain position of the primary synchronization signal and the time-domain position of the secondary synchronization signal are spaced apart by a first number of time units.

44. The method according to claim 43, wherein, The main system information is carried through the first PBCH; When the time domain position of the primary synchronization signal is spaced apart from the time domain position of the secondary synchronization signal by a first number of time units, the first number of time units are used to transmit at least a portion of the PBCH in the first PBCH.

45. The method according to any one of claims 32-35, wherein, The first type of SSB includes a primary synchronization signal, a secondary synchronization signal, and first primary system information; The second type of SSB includes second master system information; the master system information includes the first master system information and the second master system information.

46. ​​The method according to claim 45, wherein, The primary synchronization signal and / or the secondary synchronization signal are determined based on cell identification information.

47. The method according to claim 45 or 46, wherein, The first main system information includes one or more of the following: The community prohibits access to information; The second type of SSB time information; Subcarrier spacing information of the second type of SSB; The half-frame information containing the first main system information; The highest N bits of the system frame number; Cell reselection control indication information at the same frequency.

48. The method according to any one of claims 45-47, wherein, In the first type of SSB, the primary synchronization signal and the secondary synchronization signal are time-division multiplexed.

49. The method according to claim 48, wherein, The time-domain position of the primary synchronization signal is continuous with the time-domain position of the secondary synchronization signal in the time domain.

50. The method according to claim 48, wherein, The time-domain position of the primary synchronization signal is spaced apart from the time-domain position of the secondary synchronization signal by a second number of time units.

51. The method according to any one of claims 45-50, wherein, The first main system information is carried through the second PBCH; The second PBCH is frequency-division multiplexed with the primary synchronization signal and / or the secondary synchronization signal.

52. The method according to any one of claims 45-50, wherein, The first main system information is carried through the second PBCH; The second PBCH is time-division multiplexed with the primary synchronization signal and / or the secondary synchronization signal.

53. The method according to claim 52, wherein, When there is a second number of time units between the time domain position of the primary synchronization signal and the time domain position of the secondary synchronization signal, the second number of time units are used to transmit the second PBCH.

54. The method according to any one of claims 45-53, wherein, The second master system information is carried through a third PBCH, which is time-division multiplexed with the first type of SSB.

55. The method according to claim 37, 40, or 47, wherein, The second type of SSB time information indicates one or more of the following: Does the current first cycle include SSBs of the second type? The duration of the interval between the first type of SSB and the second type of SSB.

56. The method according to any one of claims 32-55, wherein, The bandwidth occupied by the first type of SSB is the same as that occupied by the second type of SSB.

57. The method according to any one of claims 32-56, wherein, The first cycle is a predefined parameter.

58. The method according to any one of claims 32-57, wherein, The second period is a parameter selected by the network device, and the second period is any one of a plurality of third periods.

59. The method according to any one of claims 32-58, wherein, The terminal device receives a first type of SSB, including: The terminal device receives a first type of SSB burst set in each first cycle, the first type of SSB burst set including multiple SSBs of the first type.

60. The method according to any one of claims 32-59, wherein, The terminal device receives a second type of SSB, including: The terminal device receives a second type of SSB burst set in each second cycle, the second type of SSB burst set including multiple SSBs of the second type.

61. The method according to claim 60, wherein, When the second period is M times the first period, the second type of SSB burst set in each second period corresponds to the first type of SSB burst set in the m-th first period in every M first periods; The first type of SSB burst set and the second type of SSB burst set within the m-th first period are located in the same time range.

62. The method according to claim 61, wherein, The SSB burst set of the second type contains multiple SSBs of the second type, which correspond one-to-one with the SSBs of the first type contained in the SSB burst set of the first type in the m-th first period; the corresponding SSBs of the first type and the SSBs of the second type use the same spatial filter.

63. A network device, comprising: The first communication unit is configured to transmit a first type of SSB and a second type of SSB; Wherein, the first period during which the network device sends the first type of SSB is less than or equal to the second period during which the network device sends the second type of SSB.

64. A terminal device, the apparatus comprising: The second communication unit is configured to receive a first type of synchronization signal block (SSB) and / or a second type of SSB. Wherein, the first period during which the terminal device receives the first type of SSB is less than or equal to the second period during which the terminal device receives the second type of SSB.

65. 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 31, or to implement the method of any one of claims 32 to 62; A transceiver is used to receive and send information when exchanging information with other external devices.

66. 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 31, or to perform the method as described in any one of claims 32 to 62; A transceiver is used to receive and send information during the exchange of information with a device or chip.

67. 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 31, or implements the method as claimed in any one of claims 32 to 62.

68. 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 31; or implement the steps of the method as claimed in any one of claims 32 to 62.

69. A computer program that, when executed, causes a computer to perform the method as described in any one of claims 1 to 31, or to implement the method as described in any one of claims 32 to 62.

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