Signal sending method, signal receiving method, storage medium and program product

Abstract

Provided are a signal sending method, a signal receiving method, a storage medium and a program product. The signal sending method comprises: sending an initial signal, the initial signal comprising at least one of the following: a synchronization signal, a broadcast channel and a first reference signal, and the synchronization signal comprising at least one of the following: a first synchronization signal, a second synchronization signal and a third synchronization signal.

Description

Signal sending method, signal receiving method, storage medium and program product

[0001] The present disclosure claims priority to Chinese Patent Application No. 202411032689.6, filed on July 29, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present disclosure relates to the technical field of communication, and in particular to a signal sending method, a signal receiving method, a storage medium and a program product. BACKGROUND

[0003] In recent years, with the development of communication technology, the service demand of communication devices (such as base stations, terminals, etc.) is increasing, and the service interaction between communication devices is more and more frequent.

[0004] In the traditional communication network, the service interaction between communication devices is signal transmission through the wire harness connection between communication devices. SUMMARY

[0005] In one aspect, the present disclosure provides a signal sending method. The signal sending method comprises: sending an initial signal. The initial signal comprises at least one of the following: a synchronization signal, a broadcast channel, and a first reference signal. The synchronization signal comprises at least one of the following: a first synchronization signal, a second synchronization signal, and a third synchronization signal.

[0006] In another aspect, the present disclosure provides a signal receiving method. The signal receiving method comprises: receiving an initial signal. The initial signal comprises at least one of the following: a synchronization signal, a broadcast channel, and a first reference signal. The synchronization signal comprises at least one of the following: a first synchronization signal, a second synchronization signal, and a third synchronization signal.

[0007] In another aspect, the present disclosure provides a signal sending device. The signal sending device comprises: a sending module;

[0008] The sending module is configured to send an initial signal. The initial signal comprises at least one of the following: a synchronization signal, a broadcast channel, and a first reference signal. The synchronization signal comprises at least one of the following: a first synchronization signal, a second synchronization signal, and a third synchronization signal.

[0009] In another aspect, the present disclosure provides a signal receiving device. The signal receiving device comprises: a receiving module;

[0010] The receiving module is configured to receive an initial signal. The initial signal comprises at least one of the following: a synchronization signal, a broadcast channel, and a first reference signal. The synchronization signal comprises at least one of the following: a first synchronization signal, a second synchronization signal, and a third synchronization signal.

[0011] In another aspect, the embodiments of the present disclosure provide a communication apparatus. The communication apparatus comprises a memory and a processor, the memory and the processor are coupled; the memory is configured to store a computer program; and the processor is configured to implement the above-mentioned signal sending method or signal receiving method when executing the computer program.

[0012] In another aspect, the embodiments of the present disclosure provide a computer readable storage medium, and the computer readable storage medium stores computer program instructions, and the computer program instructions are executed by a processor to implement the above-mentioned signal sending method or signal receiving method.

[0013] In another aspect, the embodiments of the present disclosure provide a computer program product, and the computer program product comprises computer program instructions, and the computer program instructions are executed to implement the above-mentioned signal sending method or signal receiving method. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the present disclosure, the following will briefly introduce the drawings needed to be used in some embodiments of the present disclosure. Obviously, the drawings described in the following description are only some drawings of the embodiments of the present disclosure, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0015] FIG. 1 is a schematic diagram of a communication system according to some embodiments.

[0016] FIG. 2 is an example schematic diagram of the position distribution and resource occupation of PSS, SSS and PBCH in time-frequency domain according to some embodiments.

[0017] FIG. 3 is a flowchart of a signal sending method according to some embodiments.

[0018] FIG. 4 is an example schematic diagram of a design method of a synchronization signal according to some embodiments.

[0019] FIG. 5 is an example schematic diagram of another design method of a synchronization signal according to some embodiments.

[0020] FIG. 6 is an example schematic diagram of still another design method of a synchronization signal according to some embodiments.

[0021] FIG. 7 is an example schematic diagram of the position relationship between a super cell and a sub cell according to some embodiments.

[0022] FIG. 8 is an example schematic diagram of the time-frequency domain relationship of PSS and SSS according to some embodiments.

[0023] FIG. 9 is an example schematic diagram of the beam relationship of PSS and SSS according to some embodiments.

[0024] FIG. 10 is an example diagram of beam relationship and location relationship of PSS, SSS and PBCH according to some embodiments.

[0025] FIG. 11 is an example diagram of beam transmission of SSS in time domain according to some embodiments.

[0026] FIG. 12 is an example diagram of design method of PBCH according to some embodiments.

[0027] FIG. 13 is an example diagram of another design method of PBCH according to some embodiments.

[0028] FIG. 14 is an example diagram of yet another design method of PBCH according to some embodiments.

[0029] FIG. 15 is an example diagram of beam index of PBCH according to some embodiments.

[0030] FIG. 16 is an example diagram of location distribution among PSS, SSS, PBCH according to some embodiments.

[0031] FIG. 17 is an example diagram of another location distribution among PSS, SSS, PBCH according to some embodiments.

[0032] FIG. 18 is an example diagram of yet another location distribution among PSS, SSS, PBCH according to some embodiments.

[0033] FIG. 19 is an example diagram of yet another location distribution among PSS, SSS, PBCH according to some embodiments.

[0034] FIG. 20 is an example diagram of yet another location distribution among PSS, SSS, PBCH according to some embodiments.

[0035] FIG. 21 is an example diagram of location distribution among first synchronization signal, second synchronization signal, third synchronization signal, PBCH according to some embodiments.

[0036] FIG. 22 is an example diagram of another location distribution among first synchronization signal, second synchronization signal, third synchronization signal, PBCH according to some embodiments.

[0037] FIG. 23 is an example diagram of yet another location distribution among PSS, SSS, PBCH according to some embodiments.

[0038] FIG. 24 is an example diagram of yet another location distribution among PSS, SSS, PBCH according to some embodiments.

[0039] FIG. 25 is an example diagram of a relationship between bandwidths of a PSS, an SSS, and a PBCH, according to some embodiments.

[0040] FIG. 26 is an example diagram of another relationship between bandwidths of a PSS, an SSS, and a PBCH, according to some embodiments.

[0041] FIG. 27 is an example diagram of a relationship between locations of a PSS, an SSS, and a PBCH, according to some embodiments.

[0042] FIG. 28 is an example diagram of another relationship between locations of a PSS, an SSS, and a PBCH, according to some embodiments.

[0043] FIG. 29 is an example diagram of yet another relationship between locations of a PSS, an SSS, and a PBCH, according to some embodiments.

[0044] FIG. 30 is an example diagram of yet another relationship between locations of a PSS, an SSS, and a PBCH, according to some embodiments.

[0045] FIG. 31 is an example diagram of yet another relationship between locations of a PSS, an SSS, and a PBCH, according to some embodiments.

[0046] FIG. 32 is an example diagram of a relationship between locations of a PSS and a PBCH in time domain symbols, according to some embodiments.

[0047] FIG. 33 is an example diagram of another relationship between locations of a PSS and a PBCH in time domain symbols, according to some embodiments.

[0048] FIG. 34 is an example diagram of yet another relationship between locations of a PSS and a PBCH in time domain symbols, according to some embodiments.

[0049] FIG. 35 is an example diagram of a frequency division multiplexed synchronization signal beam, according to some embodiments.

[0050] FIG. 36 is a flow diagram of a signal receiving method, according to some embodiments.

[0051] FIG. 37 is a flow diagram of a signal interaction method, according to some embodiments.

[0052] FIG. 38 is a block diagram of a signal transmitting apparatus, according to some embodiments.

[0053] FIG. 39 is a block diagram of a signal receiving apparatus, according to some embodiments.

[0054] FIG. 40 is a block diagram of another signal transmitting apparatus, according to some embodiments. DETAILED DESCRIPTION

[0055] The technical solutions in the present disclosure will be described clearly and completely in the present disclosure in combination with the drawings in the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the present disclosure.

[0056] It should be noted that in the present disclosure, the expressions such as "exemplarily" or "for example" are used to represent as an example, illustration or description. Any embodiment or design scheme described as "exemplarily" or "for example" in the present disclosure should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. In fact, the expressions such as "exemplarily" or "for example" are intended to present the relevant concept in a detailed manner.

[0057] Hereinafter, the terms "first", "second", and the like are only used for description purposes, and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features.

[0058] In the description of the present disclosure, unless otherwise specified, " / " means "or", for example, A / B can mean A or B. "And / or" in this document is only a description of the association between the associated objects, which means that there can be three kinds of relationships, for example, A and / or B can mean: only A, A and B, and only B. In addition, "at least one" means one or more, and "multiple" means two or more.

[0059] And the corresponding and associated identification means the same, which can be replaced in the following part of the embodiments.

[0060] In recent years, with the development of communication technology, the service demand of communication devices (such as base stations, terminals, etc.) is increasing, and the service interaction between communication devices is more and more frequent.

[0061] In the traditional communication network, the service interaction between communication devices is signal transmission through the wire harness connection between communication devices. However, in the wireless communication network, the service interaction between communication devices is signal transmission through free space (such as air). In the case of a large number of communication devices in the wireless communication network, how to improve the communication efficiency between communication devices in the wireless communication network becomes a technical problem to be solved.

[0062] To solve the above technical problems, the embodiments of the present disclosure provide a signal sending method, which sends an initial signal including a synchronization signal (SS) to enable a peer device to determine a receiving period of a communication signal (i.e., a service signal) carrying service data based on the synchronization signal and determine the start and end of a data bit in the service signal. Moreover, the synchronization signal can include a first synchronization signal and a second synchronization signal for step-by-step synchronization to enable the peer device to determine complete synchronization information based on the first synchronization signal and the second synchronization signal, thereby avoiding loss of the synchronization information. Meanwhile, the initial signal sent can also include a broadcast channel and a first reference signal to enable the peer device to determine the synchronization signal to be received in the next period based on the broadcast channel and the first reference signal, thereby ensuring the accuracy of the synchronization signal received by the peer device. In this way, the communication efficiency between communication devices in a wireless communication network can be improved based on the accurate synchronization signal.

[0063] In addition, considering that in the future, UEs with different bandwidth capabilities all need to access the network, the corresponding synchronization signal, measurement signal, and broadcast channel design need to be considered at the beginning of the design, so that UEs with different bandwidth capabilities can access the network based on the design. In the 5G system, if the UE accessing the network is considered, the reception of the synchronization signal block (SSB), system information block (SIB), and other channels of the 5G system has obvious performance loss. Therefore, for the 6G or future wireless system, the embodiments of the present disclosure design a unified air interface access mechanism that can be adapted to UEs with different bandwidth capabilities.

[0064] The mobile communication network in the embodiments of the present disclosure (including but not limited to 3G, 4G, 5G and future mobile communication networks (for example, the network architecture of the fifth generation mobile communication technology Advanced (5G-A) and the sixth generation mobile communication technology (6G)) can at least include a first communication node and a second communication node. It should be understood that in the present example, the first communication node in the downlink can be a terminal side device (including but not limited to a terminal), and the second communication node can be a network side device (including but not limited to a base station). Of course, the first communication node in the uplink can also be a network side device, and the second communication node can also be a terminal side device. In device-to-device communication, the first communication node and the second communication node can both be base stations or terminals. The first communication node and the second communication node can be referred to as the first node and the second node respectively.

[0065] Exemplarily, the node that transmits the signal is the first node, the node that receives the signal is the second node, and the first node is a base station and the second node is a terminal. For example, as shown in FIG. 1, FIG. 1 is a communication system according to some embodiments. The communication system includes a base station 101 and a terminal 102. The terminal 102 can be one or more, and the number is not limited in the embodiments of the present disclosure.

[0066] The base station 101 can send an initial signal to the terminal 102. The initial signal can include a synchronization signal, a broadcast channel and a first reference signal. The terminal 102 can establish a communication connection with the base station 101 based on the received initial signal.

[0067] It should be noted that in the embodiments of the present disclosure, the first node and the second node can be at least one of the following: a terminal, a base station, a core network element, and a server.

[0068] A base station (BS) can be a base station or an evolved node B (eNB or eNodeB) in LTE, long term evolution advanced (LTE-A), a base station device in a 5G network, or a base station in a future communication system, and the like, and can include various macro base stations, micro base stations, home base stations, wireless remote devices, reconfigurable intelligent surfaces (RISs), routers, relays, transmission and reception points (TRPs), wireless fidelity (WIFI) devices, and various network side devices.

[0069] A terminal can be a device with wireless transceiving function. The terminal can be a mobile phone, a tablet computer (Pad), a computer with wireless transceiving function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, and the like. The application scenarios are not limited in the embodiments of the present disclosure. The terminal can also be referred to as a user, a user equipment (UE), an access terminal, a UE unit, a UE station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a UE terminal, a wireless communication device, a UE agent, or a UE apparatus, and the like, and the present disclosure is not limited thereto.

[0070] The core network network element can include various network functions, such as an access and mobility management function (AMF), a session management function (SMF), a user plane function (UPF), a policy control function (PCF), a unified data management (UDM), a location management function (LMF), and the like.

[0071] It should be noted that FIG. 1 is only an exemplary framework diagram, the number of devices included in FIG. 1, and the name of each device is not limited, and in addition to the devices shown in FIG. 1, the communication system can also include other devices, such as core network devices.

[0072] In some embodiments, the broadcast channel can be a physical broadcast channel (PBCH), and the design of the first synchronization signal and the second synchronization signal in the synchronization signal mainly adopts the framework of the primary and secondary synchronization signal design, that is, the first synchronization signal is a primary synchronization signal (PSS), and the second synchronization signal is a secondary synchronization signal (SSS). The PSS is provided in the front to provide a preliminary synchronization result, to complete the preliminary synchronization with a small number of sequence numbers, and the SSS is provided in the back, and further synchronization is performed according to the SSS.

[0073] Exemplarily, as shown in FIG. 2, FIG. 2 shows the location distribution and resource occupation of the PSS, the SSS, and the PBCH in the time-frequency domain. The PSS, the SSS, and the PBCH occupy one symbol (sym) in the time domain respectively, and the PSS and the SSS occupy 127 REs (REs are a kind of space-frequency resource units) in the frequency domain, the PBCH occupies 20 RBs (RBs are space-frequency resource blocks composed of 12 REs) in the frequency domain, and the PSS, the SSS, and the PBCH share the same frequency domain center point. At the same time, two pieces of PBCH are also included on the time domain symbol occupied by the SSS, each piece of PBCH occupies 4 RBs in the frequency domain, and the two pieces of PBCH are respectively spaced apart from the SSS by 9 REs and 8 REs in the frequency domain.

[0074] Based on 15 kHz, the bandwidth corresponding to 127 REs is 1905 kHz;

[0075] Based on 30KHz, the bandwidth corresponding to 127 REs is 3810KHz;

[0076] Based on 15KHz, the bandwidth corresponding to 20 RBs is 3600KHz;

[0077] Based on 30kHz, the bandwidth corresponding to 20 RBs is 7200kHz.

[0078] It should be noted that in long-term evolution (LTE) systems, the time-frequency domain resources occupied by the SSS are fixed, as detailed below:

[0079] Frequency domain resources: The SSS occupies 62 subcarriers in the frequency domain. The subcarrier spacing of the LTE system is 15kHz, therefore, in the frequency domain, the bandwidth occupied by the SSS is 62 × 15kHz = 930kHz.

[0080] Temporal Resources: The SSS is located in the last orthogonal frequency division multiplexing (OFDM) symbol of slots 0 and 10 of the subframe. In each subframe, these two slots are the 5th symbol (for normal cyclic prefix (CP) length) and the 6th symbol (for extended CP length), respectively.

[0081] For example, in a 10-millisecond (ms) radio frame, the SSS occupies one OFDM symbol for each of its two subframes (subframe 0 and subframe 5). Therefore, the SSS occupies a total of 1 OFDM symbol and is repeated in the radio frame.

[0082] Therefore, in the design of LTE PSS and SSS, in the time domain, SSS occupies a total of 1 OFDM symbol. In the frequency domain, SSS occupies a total of 62 subcarriers (930kHz bandwidth).

[0083] It should be noted that the existing NR definition of PSS is as follows: for the sequence d of the primary synchronization signal PSS (n) is defined by the following formula (the sequence d) PSS (n)for the primary synchronization signal is defined by):

[0084] d PSS (n)=1-2·x(m) Formula 1.

[0085] x(i+7) = (x(i+4) + x(i)) mod 2 Equation Three.

[0086] In the above equation, d PSS (n) is used to represent the sequence of PSS, n takes values in [0, 127), and x(i) takes values satisfying [x(6) x(5) x(4) x(3) x(2) x(l) x(0)] = [1 1 1 0 1 1 0].

[0087] The existing NR defines the SSS as follows: the sequence d SSS (n) for the secondary synchronization signal is defined by the following equation: SSS (n)for the secondary synchronization signal is defined by):

[0088] d SSS (n) = [1 - 2x0((n + m0) mod 127)] [1 - 2x1((n + ml) mod 127)] Equation Four.

[0089] x0(i+7) = (x0(i+4) + x0(i)) mod 2 Equation Seven.

[0090] x1(i+7) = (x1(i+1) + x1(i)) mod 2 Equation Eight.

[0091] In the above equation, d SSS (n) is used to represent the sequence of SSS, n takes values in [0, 127), and x0(i) takes values satisfying [x0(6) x0(5) x0(4) x0(3) x0(2) x0(l) x0(0)] = [0 0 0 0 0 0 1], and x1(i) takes values satisfying [x1(6) x1(5) x1(4) x1(3) x1(2) x1(l) x1(0)] = [0 0 0 0 0 0 1].

[0092] The PSS of the existing LTE is generated as shown below: the sequence d u (n) for the primary synchronization signal is generated from a frequency domain Zadoff-Chu sequence according to the following equation: u

[0093] Where the Zadoff-Chu root sequence index u is given by table 1.

[0094] Table 1 Root indices for the primary synchronization signal

[0095] And the sequence d(0),...,d(61) used for the second synchronization signal is an interleaved concatenation of two length-31 binary sequences. The concatenated sequence is scrambled with a scrambling sequence given by the primary synchronization signal.

[0096] The combination of two length-31 sequences defining the secondary synchronization signal differs between subframes according to, for example, (the combination of two length-31 sequences defining the secondary synchronization signal differs between subframes according to):

[0097] The values of n are [0, 30], and the indices m0and m1are derived from the physical layer cell identity group ​The indices m0and m1are derived from the physical-layer cell-identity group according to) :

[0098] m0= m' mod 31 Equation Twelve.

[0099] Two sequences and are defined as two different cyclic shifts of the m-sequence according to) :

[0100] In the above equations, i takes values in [0, 30], takes values in [0, 25], and the initial conditions x(0) = 0, x(1) = 0, x(2) = 0, x(3) = 0, x(4) = 1.

[0101] The two scrambling sequences c0(n) and c1(n) depend on the primary synchronization signal and are defined by two different cyclic shifts of the m-sequence according to) :

[0102] In the above equations, i takes values in [0, 30], is the physical-layer identity within the physical-layer cell-identity group where ​​​​is the physical-layer identity within the physical-layer cell identity group ), is defined by): is defined by):

[0103] In the above formulae, has a value of [0, 25], and has initial conditions x(0) = 0, x(1) = 0, x(2) = 0, x(3) = 0, x(4) = 1.

[0104] And, the scrambling sequences and are defined by a cyclic shift of the m-sequence according to): are defined by a cyclic shift of the m-sequence

[0105] In the above formulae, m0and m1are obtained from Table 1, i has a value of [0, 30], has a value of [0, 25], and has initial conditions x(0) = 0, x(1) = 0, x(2) = 0, x(3) = 0, x(4) = 1.

[0106] The current method for determining a cell ID is mainly through the following formula:

[0107] and is determined according to the PSS, is determined according to the PSS.

[0108] In some embodiments, the pseudo-random sequence generation method and the scrambling sequence generation method of 5G NR are as follows:

[0109] A general pseudo-random sequence is defined by a Gold sequence with a length of 31, and an output sequence c(n) (n = 0, 1, …, M PN PN ​​​-1)Generic pseudo-random sequences are defined by a length-31 Gold sequence.The output sequence c(n)of length M PN where n = 0, 1, ..., M PN -1, is defined by):

[0110] x2(n+31)=(x2(n+3)+x2(n+2)+x2(n+1)+x2(n))mod 2 Formula 30.

[0111] c(n)=(x1(n+N c )+x2(n+N c Formula 31 (mod 2).

[0112] x1(n+31)=(x1(n+3)+x1(n))mod 2 Formula 32.

[0113] In the above formula, N c =1600, the first m-sequence x1(n) should be initialized using x1(0)=1, x1(n)=0, n=1,2,…,30. The second m-sequence x2(n) is initialized using... This indicates that its value depends on the application of the sequence (where N). c =1600 and the first m-sequence x1(n)shall be initialized with x1(0)=1,x1(n)=0,n=1,2,…,30.The initialization of the second m-sequence,x2(n),is denoted by with the value depending on the application of the sequence).

[0114] In some embodiments, the demodulation reference signal (DMRS) of the PBCH is generated as follows:

[0115] The UE shall assume the reference-signal sequence r(m) for an SS / PBCH block is defined by

[0116] The scrambling sequence generator shall be initialized at the start of each SS / PBCH block occasion with

[0117] For n hf is the number of the half-frame in which the PBCH is transmitted in a frame with n hf = 0 for the first half-frame in the frame and n hf = 1 for the second half-frame in the frame, and i SSB is the two least significant bits of the candidate SS / PBCH block index as defined in [5, TS 38.213]. n hf is the number of the half-frame in which the PBCH is transmitted in a frame with n hf = 0 for the first half-frame in the frame and n hf = 1 for the second half-frame in the frame, and i SSB is the two least significant bits of the candidate SS / PBCH block index as defined in [5, TS 38.213].

[0118] For i SSB is the three least significant bits of the candidate SS / PBCH block index as defined in [5, TS 38.213] for i SSBis the three least significant bits of the candidate SS / PBCH block index as defined in[5,TS 38.213])。

[0119] is the maximum number of candidate SS / PBCH blocks in a half frame,as described in[5,TS 38.213])。 being the maximum number of candidate SS / PBCH blocks in a half frame,as described in[5,TS 38.213])。

[0120] In summary, the information carried by the master information block (MIB) of 5G NR is shown in Table 2.

[0121] Table 2 Information carried by MIB

[0122] The application scenarios are not limited in the embodiments of the present disclosure. The system architecture and business scenarios described in the embodiments of the present disclosure are used to more clearly illustrate the technical solutions of the present disclosure, and do not constitute a limitation on the technical solutions provided by the present disclosure. It can be known by those skilled in the art that, with the evolution of network architecture and the appearance of new business scenarios, the technical solutions provided by the present disclosure are also applicable to similar technical problems.

[0123] FIG. 3 is a flow diagram of a signal sending method. As shown in FIG. 3, the signal sending method comprises the following steps.

[0124] S301, an initial signal is sent.

[0125] The initial signal can include at least one of the following: a synchronization signal, a broadcast channel, and a first reference signal. The synchronization signal can include at least one of the following: a first synchronization signal, a second synchronization signal, and a third synchronization signal. The synchronization signal can be used for synchronization and can also be used for measurement.

[0126] In the embodiments of the present disclosure, the synchronization signal can carry at least one of the following information: cell information, beam information, and location information.

[0127] The location information can be used to determine at least one of the following: a time domain location of the synchronization signal, a time-frequency domain location (i.e., a time domain location and / or a frequency domain location) of the broadcast channel, and whether the broadcast channel is associated (or corresponds to) the broadcast channel.

[0128] The cell information is used to determine the category of the cell, the physical identity of the cell, etc., and the cell information can include at least one of the following: cell identification information, cell index information, cell category information. The cell identification information and the cell index information are both used to determine the cell identity, and the cell category information can be used to determine whether it is an energy-saving cell, a cell using a certain network energy-saving technology, or a cell supporting narrowband device access. In some embodiments, the concept of a cell can also be replaced by a transmission and reception point (TRP), an antenna or a beam, or a carrier, etc. That is, the cell information can also be carrier information, including identification information of the carrier, index information of the carrier, and category information of the carrier.

[0129] The beam information includes at least one of the following: index information of the beam, quantity information of the beam, index information of the synchronization signal, and quantity information of the synchronization signal. The quantity information of the beam and the quantity information of the synchronization signal are the index quantity of the synchronization signal.

[0130] It should be noted that compared with NR or LTE, the future wireless communication system can need to build more cells to meet the coverage, or based on the concept of super cell or multiple cell combination cell, the number of cells is reduced in the network, and then the PSS / SSS does not need to expand the capacity, and therefore the time-frequency domain resources occupied by the PSS / SSS can increase or decrease.

[0131] As an implementation manner, the synchronization signal can include a PSS and an SSS, and any one of the first synchronization signal, the second synchronization signal, and the third synchronization signal can be the PSS or the SSS. The first synchronization signal and the second synchronization signal can satisfy at least one of the following:

[0132] (1) The first synchronization signal is a synchronization signal of the first cell, and the second synchronization signal is a synchronization signal of the second cell.

[0133] (2) The first synchronization signal carries first information, and the second synchronization signal carries second information, the first information includes at least one of first cell information, first beam information, and first location information, and the second information includes at least one of second cell information, second beam information, and second location information.

[0134] (3) The first synchronization signal is used for measurement or synchronization of the first cell, and the second synchronization signal is used for measurement or synchronization of the second cell.

[0135] (4) The first synchronization signal is a primary synchronization signal, and the second synchronization signal is a secondary synchronization signal.

[0136] (5) The second synchronization signal is determined according to the first synchronization signal.

[0137] In some embodiments, the synchronization signal can comprise the first synchronization signal, the second synchronization signal and the third synchronization signal simultaneously. The first synchronization signal, the second synchronization signal and the third synchronization signal can satisfy at least one of the following:

[0138] (1) the first synchronization signal is a first primary synchronization signal, the second synchronization signal is a second primary synchronization signal, and the third synchronization signal is a secondary synchronization signal;

[0139] (2) the first synchronization signal is a primary synchronization signal, the second synchronization signal is a first secondary synchronization signal, and the third synchronization signal is a second secondary synchronization signal;

[0140] (3) the first synchronization signal is a first secondary synchronization signal, the second synchronization signal is a primary synchronization signal, and the third synchronization signal is a second secondary synchronization signal;

[0141] (4) the first synchronization signal is a first secondary synchronization signal, the second synchronization signal is a second secondary synchronization signal, and the third synchronization signal is a primary synchronization signal;

[0142] (5) the first synchronization signal and the second synchronization signal carry first information, and the third synchronization signal carries second information, the first information includes first cell information, first beam information, and first location information, and the second information includes second cell information, second beam information, and second location information; two synchronization signals carrying the same first information or second information means that the information carried by the two synchronization signals is the same, or the information carried is different bits, or the information carried by the two synchronization signals has different parts.

[0143] (6) the first synchronization signal carries first information, and the second synchronization signal and the third synchronization signal carry second information;

[0144] (7) the third synchronization signal is determined according to the first synchronization signal and the second synchronization signal;

[0145] (8) the second synchronization signal and / or the third synchronization signal is determined according to the first synchronization signal.

[0146] In some embodiments, the synchronization signal satisfies at least one of the following:

[0147] (1) the number of frequency domain resources of the synchronization signal is not more than 25;

[0148] (2) the number of time domain resources of the synchronization signal is at least one of the set {1, 2, 3, 4, 5, 6, 8};

[0149] (3) the synchronization signal is determined by a first subsequence and a second subsequence, and the second subsequence is determined by the first subsequence, or the second subsequence and the first subsequence satisfy a predefined rule;

[0150] (4) The synchronization signal adopts a mapping mode of time domain first and frequency domain second;

[0151] (5) The synchronization signal is mapped according to a time-frequency domain resource block index, and the time-frequency domain resource block is a resource set defined based on preset time domain resources and frequency domain resources;

[0152] (6) The mapping mode or sequence of the synchronization signal is determined according to a time domain position.

[0153] The frequency domain resources can include RBs, CCEs (control channel elements, basic scheduling units of PDCCH), subcarriers, and the like. The time domain resources include symbols, time slots, subframes, radio frames, milliseconds (ms), microseconds (us), and the like.

[0154] It should be noted that, for the mapping mode or sequence of the synchronization signal determined according to the time domain position, the mapping mode of the synchronization signal is different in different time slots, different symbols, different subframes, or radio frames. Alternatively, the sequence of the synchronization signal is determined or generated according to its time domain position in different time slots, different symbols, different subframes, or radio frames.

[0155] As an implementation manner, the predefined rule can include any one of the following:

[0156] (1) The two sequences are the same, or complementary, or opposite;

[0157] (2) The two sequences have the same initialization value;

[0158] (3) The two sequences are both generated from the same ZC sequence, or m sequence, or gold sequence;

[0159] (4) The second subsequence is part of the first subsequence, or the second subsequence is a truncated sequence of the first subsequence;

[0160] (5) The resources of the first subsequence and the second subsequence are continuous in the time domain or the frequency domain;

[0161] (6) The first subsequence and the second subsequence carry the same information;

[0162] (7) The first subsequence and the second subsequence carry different information;

[0163] (8) The first subsequence and the second subsequence carry different bit positions of the same information;

[0164] (9) The first subsequence and the second subsequence have the same beam direction;

[0165] (10) The first subsequence and the second subsequence have the same power.

[0166] In some embodiments, the first synchronization signal and the second synchronization signal can also satisfy at least one of the following:

[0167] (1) The beam index of the first synchronization signal and the beam index of the second synchronization signal have a correlation relationship;

[0168] (2) The first synchronization signal and the second synchronization signal have the same port number, or the difference between the port number of the first synchronization signal and the port number of the second synchronization signal is 1 or a preset value;

[0169] (3) The first synchronization signal and the second synchronization signal have the same power, or there is an offset between the power of the first synchronization signal and the power of the second synchronization signal;

[0170] (4) The number of beams of the first synchronization signal and the number of beams of the second synchronization signal have a multiple relationship;

[0171] (5) The value range of the beam index of the first synchronization signal and the value range of the beam index of the second synchronization signal have a containing relationship.

[0172] The following describes the synchronization signal in the initial signal in conjunction with a detailed example.

[0173] 1. Time-frequency domain resource of the synchronization signal.

[0174] The PSS or SSS bandwidth is at least one of the following: 6RB, 12RB, 18RB, 24RB, 25RB, or the PSS or SSS bandwidth is not more than at least one of the following: 6RB, 12RB, 18RB, 24RB, 25RB. The number of symbols is 1 or 2 or 3 or 4.

[0175] The second synchronization signal (i.e. SSS) has more REs than the first synchronization signal. The number of REs of the two or the corresponding sequence length has a multiple X relationship. X can be a fraction or an integer, such as 1 / 2, 1 / 4, 1, 2, 4, etc.

[0176] In some embodiments, a synchronization signal set (SS burst) is defined, which is used for cell search. The position of the synchronization signal in a window, a set, and a time period can be determined according to the following features. The position of the synchronization signal can be determined according to the starting symbol, the subcarrier spacing, the number of beams, the frequency domain position, the number of symbols, and / or the predefined rule.

[0177] Exemplarily, when SCS = 15KHz, assuming that the starting symbol is symbol 1, the synchronization signal occupies 1 symbol, and the number of beams of the synchronization signal is 4, the positions of one burst or a synchronization signal set of multiple synchronization signals are: symbol 1 of the first slot, symbol 1 of the second slot, symbol 1 of the third slot, and symbol 1 of the fourth slot.

[0178] When SCS = 15KHz, assuming that the starting symbol is symbol 1, 4, 7, 10, the synchronization signal occupies 1 symbol, and the number of beams of the synchronization signal is 4, the positions of four synchronization signals in one burst or a synchronization signal set of multiple synchronization signals are: symbol 1, 4, 7, 10 of the first slot.

[0179] When SCS = 15KHz, assuming that the starting symbol is symbol 1, 4, 7, 10, the synchronization signal occupies 2 symbols, and the number of beams of the synchronization signal is 4, the starting positions of one burst or a synchronization signal set of multiple synchronization signals are: symbol 1, 4, 7, 10 of the first slot. The first synchronization signal is in symbols 1 and 2, the second synchronization signal is in symbols 4 and 5, the third synchronization signal is in symbols 7 and 8, and the fourth synchronization signal is in symbols 10 and 11. Each synchronization signal has its own beam direction.

[0180] The number of beams of the synchronization signal is the number of synchronization signals in a set, a time duration, and a time window, denoted by x. Assuming that there are y in each time unit (for example, a slot), the number of occupied time units is x / y. The number of time units of the synchronization signal is

[0181] 2. A design method of a synchronization signal.

[0182] (1) As shown in FIG. 4, mainly by lengthening the time domain resource (i.e., OFDM symbol (OS)), it is limited within a certain bandwidth, so that UEs of different bandwidth types can access.

[0183] Sequence form 1: A sequence with a length of N is directly mapped to all time-frequency domain resources. The sequence with a length of N is determined based on a ZC sequence (or m sequence). The sequence corresponding to sequence form 1 carries information including cell ID information, beam index information, and beam number information.

[0184] Sequence form 2: mapped to the first symbol and the second symbol by two sequences, the first symbol and the second symbol are continuous. The first sequence (i.e., the first subsequence) and the second sequence (i.e., the second subsequence) carry the same information or different information. The information carried by the sequence includes cell ID information, beam index information, and beam number information. For example, in the case of the first sequence and the second sequence being the same, the effect of time domain repetition can be achieved. For example, both the first sequence and the second sequence carry the index or ID information of the super cell.

[0185] (2) As shown in FIG. 5, it is mainly achieved by concatenation of synchronization signals, for example, the basic sequence of the synchronization signal is S1, and S1+S1 is used, that is, S1 is repeated and then mapped. Or the basic sequence of the synchronization signal is S1, and S2 is determined by taking the complementary sequence of the basic sequence S1 (for example, 0 becomes 1 and 1 becomes 0), or multiplying by -1, so that S1+S2 is used as the sequence of the synchronization signal.

[0186] The relationship between S1 and S2 includes determining S2 according to S1, and concatenating S1 and S2 to determine the synchronization signal.

[0187] Exemplarily, for the determination of S1, taking the sequence of the PSS as an example, the sequence S1(n) of the primary synchronization signal is defined by the following formula:

[0188] S1(n) = 1 - 2 · x(m) Formula thirty-five.

[0189] x(i+7) = (x(i+4) + x(i)) mod 2 Formula thirty-seven.

[0190] In the above formula, S1(n) is used to represent the sequence of the PSS, n takes the value [0, 127), and x(i) takes the value satisfying [x(6)x(5)x(4)x(3)x(2)x(1)x(0)] = [1 1 1 0 1 1 0].

[0191] For determining S2 according to S1, S2 can be S2(n) = -1 · S1(n), or S2 can be a repetition of S1 (i.e., the same as S1), or S2 is determined based on the linear transformation or encoding of S1. At this time, S2 is equivalent to a partial redundancy of S1, thereby providing higher reliability.

[0192] The linear transformation or encoding can be implemented by a polynomial.

[0193] For example, the input bits or sequences are a0, a1, a2, a3, …, a A-1 That is, the linear transformation is to multiply each bit by a coefficient to get another sequence. For example, a0·D A-1 , a1·D A-2 , …, a A-1 ·D 0 .

[0194] D A-1 , D A-2 , …, D 0 are determined according to a (coefficient) matrix, or according to a polynomial, or are determined according to S2 = A * S1 + B, A and B are both coefficients or constants.

[0195] Encoding, such as Manchester encoding, convolutional code, block code, turbo code, etc.

[0196] In some embodiments, S1 and S2 have different cyclic shifts, or S1 and S2 have different initial values.

[0197] It should be noted that the complete synchronization signal sequence is determined according to S1 and S2, S1 and S2 are mapped to different time-frequency domain resources, the resource positions mapped by S1 and S2 are continuous but not overlapping, for example, continuous but not overlapping in the frequency domain, or continuous but not overlapping in the time domain. The number of resources mapped by S1 and S2 is the same.

[0198] (3) As shown in FIG. 6, it is mainly implemented by nesting of the synchronization signal.

[0199] Suppose the length of the sequence S is L, and at a certain frequency domain position or time domain position, the sequence is L1, and the length L1 is less than or equal to L. The sequence S occupies a resource set U, and the truncated sequence occupies a resource set U1, U1 is a subset of U. For example, the complete sequence S is mapped to X RE or RB, and the sequence S1 is mapped to X / 2 RE or RB.

[0200] Exemplarily, the nesting means that the sequence S1 is a truncated sequence of the sequence S, or the sequence S1 is a part of the sequence S. For example, 10110 is a truncated sequence of 10110001101. Both are nested.

[0201] 3, the information carried by the synchronization information or the production method.

[0202] The information carried by the synchronization signal can include: first information carried by the first synchronization signal, second information carried by the second synchronization signal.

[0203] (1) As shown in FIG. 7, the information carried by the first synchronization signal is a super cell (i.e., the first cell) ID (i.e., the first cell ID), and the value range of the super cell ID is 0-N1. The information carried by the second synchronization signal is a virtual cell (i.e., the second cell) ID, or a sub cell cell ID, or a second cell ID, and the value range of the virtual cell ID is 0-N2.

[0204] (2) The synchronization signal carries beam information. The beam information / beam index information is determined according to the time-frequency domain position of the synchronization signal. For example, the first symbol of the first slot is beam index = 0, the second symbol of the first slot is beam index = 1, the first symbol of the second slot is beam index = 2, and the second symbol of the second slot is beam index = 3. Or, the first symbol, the second symbol, the third symbol, and the fourth symbol are beam index = 0, 1, 2, and 3, respectively.

[0205] The beam information of the first synchronization signal is one-to-one corresponding to the beam information of the second synchronization signal. The beam quantity and beam index range of the first synchronization signal are the same as or different from the beam quantity and beam index range of the second synchronization signal.

[0206] Also, when the beam quantity and beam index range are different, the beam quantity and beam index range of the first synchronization signal are smaller than the beam quantity and beam index range of the second synchronization signal. For example, the beam index range of the first synchronization signal is 0-3 (the beam quantity is 4), and the beam index range of the second synchronization signal is 0-7 (the beam quantity is 8).

[0207] (3) The synchronization signal carries time domain position information (i.e., part of the position information used to determine the time domain position of the synchronization signal), including slot number, SFN / wireless frame number, symbol number, subframe number, and resource unit number. The time domain position information carried by the synchronization signal can also include part of the bits or part of the information of the slot number, SFN / wireless frame number, symbol number, subframe number, and resource unit number.

[0208] The resource unit refers to a time domain resource defined based on a certain frequency domain resource, such as a certain symbol quantity defined based on a subcarrier or RB quantity as a resource unit.

[0209] (4) The indication information (i.e. the time-frequency domain location of the broadcast channel and the information whether the part of the broadcast channel is associated) carried by the synchronization signal is used to determine the location relationship between the SSS / PSS and the PBCH. There can be multiple patterns of the location relationship between the SSS / PSS and the PBCH, and the pattern is determined according to the indication information carried by the synchronization signal, or the location relationship between the SSS / PSS and the PBCH is pointed by the index.

[0210] For example, the indication information carried by the synchronization signal is used to indicate whether it is time division or frequency division. If the indication information carried by the synchronization signal indicates time division, it means that the PBCH and the synchronization signal have the same center frequency point. If the indication information carried by the synchronization signal indicates frequency division, it means that the PBCH and the synchronization signal have overlap in time domain, and the frequency domain can be continuous.

[0211] In addition, the indication information is used to determine the location relationship through the association relationship between S1 and S2. For example, if S1 is the same as S2 (i.e. repetition), the location relationship is time division between the PBCH and the synchronization signal, and if S1 and S2 are complementary, opposite or have other predefined rules, the location relationship is frequency division between the PBCH and the synchronization signal.

[0212] (5) The synchronization signal can also carry pattern information, mode information or relative relationship information, which is used to describe the time-frequency domain resource of the PBCH and the relative location relationship with the synchronization signal (such as the second synchronization signal).

[0213] In some embodiments, for the synchronization signal, the sequence of the synchronization signal can be generated according to the above information.

[0214] (1) The first synchronization signal is determined according to the first information, and the second synchronization signal is determined according to the second information.

[0215] For example, the sequence of the first synchronization signal is determined according to the first cell ID / first information. The sequence of the second synchronization signal is determined according to the second cell ID / second information.

[0216] (2) The first synchronization signal is determined according to the first information, and the second synchronization signal is determined according to the first information and the second information.

[0217] For example, the sequence of the first synchronization signal is determined according to the first cell ID / first information. The sequence of the second synchronization signal is determined according to the first cell ID / first information and the second cell ID / second information.

[0218] The initialization value, the cyclic shift, the scrambling sequence or the information is determined according to the first cell ID / first information and / or the second cell ID / second information, and is used to generate a sequence of the second synchronization signal.

[0219] For another example, the first cell ID and the second cell ID have an association relationship or a binding relationship. For example, the determination of the value range of the second cell ID / the generation of the second synchronization signal sequence according to the first cell ID includes the determination of the initialization value of the second synchronization signal sequence according to the first cell ID, the determination of the set of the second synchronization signal sequence according to the first cell ID, and the determination of the value range of the second cell ID.

[0220] (3) The sequence of the first synchronization signal is determined according to the first information, the second synchronization signal is determined according to the second information, and the third synchronization signal is determined according to the second information and the third information. For example, the first synchronization signal is transmitted in the first cell, and the second synchronization signal and the third synchronization signal are transmitted in the second cell. One ID information is determined according to the first information, the second information and the third information.

[0221] (4) The first synchronization signal and the second synchronization signal are at the same frequency point. Or the first synchronization signal and the second synchronization signal are at different frequency points, different frequency bands or carriers.

[0222] (5) The synchronization signal is concatenated or spliced by two sequences, for example, S1 and S2, which are combined into a complete sequence S. The complete sequence S can be the first synchronization signal sequence or the second synchronization signal sequence.

[0223] For example, the sequences S1 and S2 carry different information, such as the sequence S1 carrying cell ID information and the sequence S2 carrying beam information. Or, the sequence S1 carries time domain position information, and the sequence S2 carries cell ID information or beam information.

[0224] For another example, the beam directions of the sequence S1 and the sequence S2 have an association relationship, such as the sequence S1 and the sequence S2 having the same beam direction, or satisfying a predefined rule, such as the sum of the beam indexes of the sequence S1 and the sequence S2 being 4 or 8 or a value.

[0225] For another example, the sequence S1 and the sequence S2 are continuous in the time domain or continuous in the frequency domain.

[0226] For another example, the sequence S1 and the sequence S2 jointly carry the cell ID, or the beam information, or the time domain position information. For example, the sequence S1 and the sequence S2 carry high bits and low bits respectively, or the sequence S1 and the sequence S2 carry part of the information in the high bits and the low bits respectively.

[0227] For example, the association between sequence S1 and sequence S2 determines the relative position relationship between the synchronization signal and the PBCH. If sequence S1 and sequence S2 are the same sequence, then the PBCH is also at the same center frequency point as the synchronization signal. If sequence S1 and sequence S2 are opposite or complementary sequences, or sequence S2 is another sequence compared with sequence S1, then the PBCH and the synchronization signal have different center frequency points, or different position relationships.

[0228] It should be noted that the position relationship between the PBCH and the synchronization signal can be described with reference to the description in the following embodiments, and the embodiments of the present disclosure will not be described in detail.

[0229] 4. The beam of the synchronization signal.

[0230] The beam direction of the SSB is actually indicated according to the PBCH or the DMRS, and at this time the PSS / SSS and the PBCH share the beam direction. For LTE, its PSS / SSS has no concept of beam. For future communication systems, such as 6G, the PSS or SSS of the PSS or SSS may be separated from the PBCH, thereby obtaining network energy saving gain and meeting the needs of different bandwidth UE access. The following is an introduction to the beam of the synchronization signal:

[0231] (1) As shown in FIG. 8, the beams of the PSS and the SSS have an association relationship or have the same port number, for example, the PSS and the SSS have the same beam relationship, especially when the PSS and the SSS are adjacent in the time-frequency domain. Of course, the PSS and the SSS can also have different port numbers, for example, the difference between the two is 1, that is, the port number of the first synchronization signal PSS is n, and the port number of the second synchronization signal SSS is n+1 or n-1. When there are a first synchronization signal, a second synchronization signal and a third synchronization signal, the port numbers of the PSS and the SSS are the same or continuous.

[0232] (2) As shown in FIG. 9, the number of beams of the PSS is less than or equal to the number of beams of the SSS.

[0233] One PSS beam index corresponds to multiple SSS beam indexes.

[0234] For example, the beam index of PSS is 0~3, and the beam index of SSS is 0~8. At this time, the beam index 0 of PSS is associated with the beam index 0, 1, and 7 of SSS, and the beam index 1 of PSS is associated with the beam index 1, 2, and 3 of SSS. The rule is that, assuming that PSS has M beam directions (numbered m), m takes values from 0 to M-1, and SSS has C*M beam directions (numbered n), n takes values from 0 to C*M-1, the beam number of SSS associated with the beam number m of PSS is (C*m-1+C*M)mod(C*M)_, C*m, C*m+1. After detecting the first synchronization signal, the UE determines the beam index of the first synchronization signal as m, and then further detects SSS, and only needs to detect these beam directions (C*m-1+C*M)mod(C*M)_, C*m, C*m+1.

[0235] In some embodiments, PSS corresponds to the first synchronization signal, and SSS corresponds to the second synchronization signal. PBCH and SSS have the same beam index, that is, the beam of PBCH is associated with the beam of the second synchronization signal. The following FIG. 10 shows the beam relationship of the first synchronization signal PSS, the second synchronization signal SSS, and PBCH in a typical position relationship.

[0236] (3) As shown in FIG. 11, the PSS or SSS multiple beam transmission is discontinuous.

[0237] The positions of the two consecutive beams have a gap (x) in the time domain, including:

[0238] The first beam and the second beam have a gap x, and the third beam and the fourth beam have a gap y; or,

[0239] The first beam and the second beam have a gap x, and the second beam and the third beam have a gap y; or,

[0240] All two adjacent beams have a gap x; or,

[0241] The interval of the consecutive index beams in one slot is x, and the interval of the two beams of the consecutive index between different slots is y.

[0242] x and y can be a time unit based on symbol, slot, or microsecond, etc.

[0243] It should be noted that the number of beams of PSS or SSS varies according to the frequency point, and the relative relationship between the number of beams of PSS and SSS does not change, for example, has a multiple relationship, and the multiple is constant as 2 times.

[0244] In some embodiments, the beam index of the PSS is a subset of the beam index of the SSS.

[0245] 5. The power of the synchronization signal.

[0246] (1) The power of the synchronization signal is defined based on the beam direction, or beam index.

[0247] (2) The synchronization signals have the same power when they have the same beam direction.

[0248] (3) The power of the PSS and the SSS have a correlation, and the power of the PSS and the SSS have a difference. The PSS power is defined based on the SSS, or the SSS power is defined based on the PSS. For example, the relationship is reference power value + offset = signal power value. If the reference power value is defined based on the SSS, the signal power value can be the power of the PSS, PDSCH, PDCCH, DMRS, etc. If the reference power value is defined based on the PSS, the signal power value can be the power of the SSS, PDSCH, PDCCH, DMRS, etc.

[0249] (4) The power of the first synchronization signal, the second synchronization signal, and the third synchronization signal is obtained based on the power of one of the first synchronization signal, the second synchronization signal, and the third synchronization signal. For example, the power of the second synchronization signal or the third synchronization signal is obtained based on the power of the first synchronization signal.

[0250] 6. Position relationship

[0251] The time domain position of the synchronization signal can include: the first synchronization signal and the second synchronization signal have the same subcarrier spacing, period, center frequency, symbol quantity, or frequency domain resource quantity, such as RB, RE quantity, and same bandwidth; or,

[0252] The first synchronization signal and the second synchronization signal are adjacent in time domain and have the same period. Alternatively, the first synchronization signal and the second synchronization signal are in the same time unit, such as slot, subframe, SFN.

[0253] In summary, the above is a description of the synchronization signal, and the first reference signal in the initial signal is introduced below.

[0254] In some embodiments, the first reference signal can be at least one of the following: a reference signal of a broadcast channel (for example, DMRS of PBCH), a reference signal of a control channel, a reference signal of a data channel carrying system information, a measurement reference signal, and a phase tracking reference signal (PT-RS).

[0255] The control channel can comprise a physical downlink control channel (PDCCH), which is used to indicate some control signaling, such as scheduled time-frequency domain resource (i.e., time domain resource, frequency domain resource) allocation, HARQ (hybrid automatic repeat request, an error correction mechanism used in a wireless communication system), redundancy version (RV), new data indicator (NDI) information, etc. The data channel can comprise a channel used to transmit data, such as a physical shared channel, a physical downlink shared channel (PDSCH), which is scheduled by the control channel.

[0256] As an implementation manner, the first reference signal satisfies at least one of the following:

[0257] (1) The first reference signal indicates a beam index;

[0258] (2) The first reference signal indicates a beam index of an associated first synchronization signal or a beam index of a second synchronization signal;

[0259] (3) A beam index of the first reference signal is associated with a synchronization signal;

[0260] (4) The first reference signal is associated with a first synchronization signal or a second synchronization signal in a synchronization signal;

[0261] (5) The first reference signal indicates a power of a broadcast channel;

[0262] (6) The first reference signal is used for half-frame indication or system frame number indication;

[0263] (7) The first reference signal indicates a subcarrier spacing;

[0264] (8) The first reference signal indicates a resource pattern, or type / format, of a broadcast channel, or indicates a location relationship with a control channel;

[0265] (9) A sequence corresponding to the first reference signal is determined by a synchronization signal;

[0266] (10) A sequence corresponding to the first reference signal is determined by information carried by a synchronization signal;

[0267] (11) A sequence corresponding to the first reference signal is determined by cell information carried by a synchronization signal;

[0268] (12) The sequence corresponding to the first reference signal is scrambled according to the cell information carried by the synchronization signal.

[0269] (13) The sequence corresponding to the first reference signal is initialized by scrambling according to the cell information carried by the synchronization signal.

[0270] The first reference signal in the initial signal is introduced below in combination with detailed examples, taking the first reference signal as DMRS.

[0271] The DMRS indicates SIB1-related information, for example, the DMRS indicates whether there is SIB1 transmission, the DMRS indicates the bandwidth range of SIB1, the DMRS is used to determine the frequency domain resource of SIB1, the DMRS is used to indicate the time domain repetition number of SIB1, the DMRS is used to indicate the location relationship of the control channel, or the DMRS is used to indicate the time domain resource or frequency domain resource of the control channel.

[0272] For example, the frequency domain of SIB1 is indicated to be 6 RBs or 12 RBs or 24 RBs or 48 RBs.

[0273] For another example, the time domain resource of SIB1 can be indicated to be 14 symbols / 1 slot or 28 symbols / 2 slot.

[0274] For another example, the repetition number is indicated to be 1, 2, 4, or 8.

[0275] For another example, the location relationship of PBCH and reset (CORESET) #0 or control channel is indicated, including time division or frequency division, including different patterns.

[0276] For another example, the time-frequency domain resource of common PDCCH monitoring is indicated to be at least one of the following: 2 symbols, 4 symbols, 3 symbols, 6 RBs, 12 RBs, 24 RBs, and 48 RBs.

[0277] In some embodiments, the DMRS indicates PBCH-related information or other system information; or,

[0278] The DMRS indicates a beam index; or,

[0279] The DMRS indicates the beam index of the associated first synchronization signal or second synchronization signal; or,

[0280] The beam index of the DMRS is associated with the synchronization signal; or,

[0281] The DMRS indicates association with the first synchronization signal or the second synchronization signal; or,

[0282] The DMRS indicates the power of the PBCH (e.g., a power offset from the power of the synchronization signal); or

[0283] The DMRS is used for half-frame indication or system frame number indication; or

[0284] The DMRS indicates the subcarrier spacing.

[0285] In some embodiments, the association of the DMRS in the PBCH with the synchronization signal or the information indicated thereby.

[0286] The generation of the DMRS sequence is determined according to the synchronization signal; or

[0287] The generation of the DMRS sequence is determined according to the information carried by the synchronization signal, including cell ID information, beam information, and location information; or

[0288] The generation of the DMRS sequence is determined according to cell ID information, which includes first cell ID information or second cell ID information; or

[0289] The scrambling of the DMRS sequence is determined according to cell ID information, which includes first cell ID information or second cell ID information; or

[0290] The initialization of the scrambling of the DMRS sequence is determined according to cell ID information, which includes first cell ID information or second cell ID information.

[0291] In summary, the above is a description of the synchronization signal and the first reference signal. The following describes the broadcast channel in the initial signal.

[0292] In some embodiments, the broadcast channel is determined according to the synchronization signal.

[0293] For the process of determining the broadcast channel according to the synchronization signal, at least one of the following is included:

[0294] (1) The broadcast channel is determined according to the information carried by the second synchronization signal;

[0295] (2) The broadcast channel is scrambled according to the information carried by the second synchronization signal;

[0296] (3) The broadcast channel is initialized for scrambling according to the information carried by the second synchronization signal;

[0297] (4) The location of the broadcast channel is determined according to the synchronization signal;

[0298] (5) The beam of the broadcast channel is associated with the synchronization signal;

[0299] (6) The reference signal of the broadcast channel is determined according to the synchronization signal;

[0300] (7) The reference signal of the broadcast channel is determined according to the second synchronization signal;

[0301] (8) The reference signal of the broadcast channel is determined according to the third synchronization signal;

[0302] (9) The reference signal of the broadcast channel is determined according to the second synchronization signal and the third synchronization signal;

[0303] (10) The reference signal of the broadcast channel is determined according to the first synchronization signal, the second synchronization signal and the third synchronization signal;

[0304] (11) The reference signal of the broadcast channel is determined according to the information carried by the synchronization signal;

[0305] (12) The reference signal of the broadcast channel is determined according to the information carried by the second synchronization signal;

[0306] (13) The reference signal of the broadcast channel is determined according to the first information or the second information of the synchronization signal.

[0307] As an implementation manner, the broadcast channel satisfies at least one of the following:

[0308] (1) The number of symbols or the number of slots of the broadcast channel in the time domain is at least one of the set {1, 2, 3, 4, 6, 8, 12, 14};

[0309] (2) The number of resource blocks of the broadcast channel in the frequency domain is at least one of the set {6, 12, 16, 18, 24, 32, 48, 96} (if N subcarriers, the corresponding RB number is ceil(N / 12), that is, the ceiling of N / 12);

[0310] (3) The indication of the broadcast channel includes at least one of the following: cell type information, cell identification information, location information, bandwidth, system information block scheduling information, pattern of the synchronization signal, pattern of the second synchronization signal, pattern of the third synchronization signal (such as narrowband beam), frame number.

[0311] The location information is used to determine the location relationship of the broadcast channel and the PDCCH scheduling SIB1, the bandwidth refers to the access bandwidth, or the bandwidth of the PDCCH scheduling SIB1, the cell identification information is the identification information of the cell, and the cell type includes: NES cell, super cell, virtual cell or other cell (other cell). The SIB scheduling information includes the number of SIBs, related parameters of the PDCCH, bandwidth, etc., the SIB scheduling information includes related information of the PDCCH scheduling system information, such as at least one of subcarrier spacing, aggregation level information, time domain resource, and frequency domain resource. The pattern of the synchronization signal refers to the time domain resource and / or frequency domain resource where the synchronization signal is located, for example, the number and / or location of resources.

[0312] The following describes the broadcast channel in the initial signal by taking the broadcast channel as PBCH, in combination with a detailed example.

[0313] 1. Time-frequency domain resource (i.e. time domain resource and / or frequency domain resource) of PBCH.

[0314] (1) One PBCH occupies at least one symbol in the time domain, for example, 1, 2, 3, 4, 6, 8, 12, or 14.

[0315] (2) The number of RBs occupied by one PBCH in the frequency domain includes 6, 12, 16, 18, 24, 32, 48, or 96.

[0316] (3) When the PBCH occupies 4 symbols, the number of RBs is 12, 16, 18, or 24. Or the number of REs / subcarriers is not more than 300.

[0317] (4) When the PBCH occupies one symbol, the number of RBs is 24, 48, or 96. Or the number of REs / subcarriers is not more than 1200.

[0318] 2. Design method of PBCH.

[0319] (1) As shown in FIG. 12, a smaller PBCH bandwidth is designed to ensure access of UEs with different bandwidth capabilities by using more time domain symbols.

[0320] For example, the PBCH can occupy 6 RBs and 8 symbols in the time domain, for another example, the PBCH occupies 12 RBs and 4 symbols in the time domain. For another example, the PBCH occupies 16 RBs and 3 symbols in the time domain.

[0321] (2) As shown in FIG. 13, multiple PBCHs are concatenated.

[0322] For example, the first PBCH maps to resources on X RBs and Y symbols, and the second PBCH is a repeat of the first PBCH, also mapped to X RBs and Y symbols. The resources of the first PBCH and the second PBCH are contiguous in the time domain, or contiguous in the frequency domain, or overlap in the frequency domain, or overlap in the time domain. Furthermore, the second PBCH may be associated with the first PBCH, have the same information bits as the first PBCH, or have different redundant versions of the second PBCH, etc.

[0323] (3) As shown in Figure 14, a method of mapping first in the time domain and then in the frequency domain is adopted.

[0324] For example, when performing mapping, from d PBCH (0) Start from resource element (k,l) p,μ (starting with d PBCH (0)to resource elements(k,l) p,μ The mapping should first be performed in the time domain l, i.e., l is increased first, and then the mapping should be performed in the frequency domain k, i.e., k is increased again.

[0325] 3. PBCH beam.

[0326] The beam direction of the PBCH is associated with the first synchronization signal (e.g., PSS) and the second synchronization signal (e.g., SSS). The PBCH determines its beam direction or beam index based on its location in the time and frequency domains.

[0327] For example, as shown in Figure 15, the beam index (1-8) in the figure is the beam index of the associated PSS and SSS, and its numbering can also start from 0, such as 0-7.

[0328] In addition, PBCH is associated with the beam index of PSS and SSS.

[0329] For example, the same PSS or SSS index can be associated with multiple PBCH beam indices; or,

[0330] Multiple PSS / SSS indices are associated with a single PBCH beam index; or,

[0331] The indices of PSS / SSS and PBCH are subsets of each other (e.g., the beam indices of PSS and SSS are 0-7, while the beam indices of PBCH are 0-3; the beam index of PBCH is a subset of the beam index of PSS / SSS); or,

[0332] The beam index of the PSS / SSS has a one-to-one correspondence with the beam index of the PSS / SSS.

[0333] 4. The power of the PBCH.

[0334] The PBCH power has a correlation with the first synchronization signal or the second synchronization signal, or is obtained based on the PSS / SSS.

[0335] It should be noted that the correlation can include the same power as the first synchronization signal or the second synchronization signal, or at least one offset from the first synchronization signal or the second synchronization signal. Alternatively, the DMRS of the PBCH is the same as the PBCH.

[0336] 5. The association of the PBCH with the synchronization signal (or the information indicated by the synchronization signal).

[0337] (1) The PBCH indicates the cell ID information, including the first cell ID information, or the second cell ID information.

[0338] (2) The PBCH indicates part of the cell ID information, including part of the second cell ID information, or part of the first cell ID information.

[0339] (3) The PBCH indicates the high X bits or the low X bits of the cell ID, X being an integer from 1 to 10.

[0340] The PBCH is generated according to the cell ID information (including the first cell ID information or the second cell ID information). For example, the scrambling manner of the PBCH is determined according to the cell ID information. For another example, the scrambling manner of the PBCH is determined according to the first cell ID information or the second cell ID information. For another example, the scrambling / generation of the PBCH is determined according to the beam information, and for another example, the scrambling / generation of the PBCH is determined according to the number of beams or the beam index.

[0341] 6. The payload of the PBCH.

[0342] (1) The payload of the PBCH can include scheduling information indicating the PDCCH transmitting SIB1, or the location relationship between the PDCCH transmitting SIB1 and the PBCH, or used to determine the monitoring location of the PDCCH.

[0343] For example, the number of symbols is at least one of 1, 2, 3, 4, 5, 6, 7, 8.

[0344] For example, the indicated frequency domain resource is at least one of 6 RBs, 12 RBs, 18 RBs, 24 RBs, 48 RBs, 96 RBs, i.e., the number of frequency domain resources is a multiple of 6 or 12.

[0345] For example, the location relationship (e.g., a pattern) of the PBCH and the CORESET#0, the common CORESET, and the common PDCCH resource is indicated.

[0346] (2) The monitoring location of the PDCCH is indicated.

[0347] For example, an offset is indicated. For example, an index is indicated, the index points to a narrowband location, or a frequency domain location, or a carrier.

[0348] In summary, the above is a description of the synchronization signal, the first reference signal, and the broadcast channel. The following introduces the location relationship between the broadcast channel and the synchronization signal in the initial signal.

[0349] In some embodiments, the location relationship of the broadcast channel and the first synchronization signal and the second synchronization signal in the synchronization signal satisfies at least one of the following:

[0350] (1) The broadcast channel, the first synchronization signal, and the second synchronization signal are adjacent to each other;

[0351] (2) The broadcast channel, the first synchronization signal, and the second synchronization signal have the same center frequency or reference frequency;

[0352] (3) The first synchronization signal is in front, the second synchronization signal is after the first synchronization signal, and the broadcast channel is after the second synchronization signal;

[0353] (4) The first synchronization signal and the second synchronization signal are adjacent in time domain, coincide or overlap in frequency domain, and the broadcast channel is adjacent to the synchronization signal;

[0354] (5) The first synchronization signal and the second synchronization signal are adjacent in time domain, coincide or overlap in frequency domain, and the broadcast channel overlaps the synchronization signal in time domain, is continuous or does not overlap in frequency domain;

[0355] (6) The broadcast channel and the synchronization signal have the same time reference point, different offsets, or different periods;

[0356] (7) The first synchronization signal and the second synchronization signal are adjacent, and the broadcast channel and the synchronization signal have different periods or offsets;

[0357] (8) The second synchronization signal and the broadcast channel are adjacent, and the first synchronization signal and the second synchronization signal have different time domain positions, offsets, or periods;

[0358] (9) The first synchronization signal and the second synchronization signal are adjacent, and the broadcast channel has a different offset or period from the first synchronization signal and / or the second synchronization signal;

[0359] (10) The broadcast channel and the second synchronization signal are adjacent, and the first synchronization signal has a different offset or period from the broadcast channel and / or the second synchronization signal;

[0360] (11) The first synchronization signal and the second synchronization signal are adjacent in the time domain, and the first synchronization signal and / or the second synchronization signal is adjacent to the broadcast channel in the frequency domain;

[0361] (12) The first synchronization signal or the second synchronization signal is continuous or adjacent to the broadcast channel in the frequency domain, and the second synchronization signal or the first synchronization signal is non-overlapping or has a different offset or period from the broadcast channel in the time-frequency domain.

[0362] It should be noted that the position relationship of the broadcast channel and the third synchronization signal in the synchronization signal can refer to the position relationship of the broadcast channel and the first synchronization signal and the second synchronization signal in the synchronization signal described above.

[0363] The position relationship of the broadcast channel and the first synchronization signal, the second synchronization signal, and the third synchronization signal in the synchronization signal satisfies at least one of the following:

[0364] (1) The third synchronization signal is adjacent to the second synchronization signal and / or the broadcast channel;

[0365] (2) The third synchronization signal is adjacent to the second synchronization signal and / or the first synchronization signal;

[0366] (3) The third synchronization signal is adjacent to the broadcast channel;

[0367] (4) The first synchronization signal, the second synchronization signal, and the third synchronization signal have the same reference frequency point as the broadcast channel.

[0368] In the embodiments of the present disclosure, the broadcast channel and the synchronization signal relationship satisfy at least one of the following:

[0369] (1) In a period of time, the synchronization signal has N beams, the broadcast channel has M beams, and M=N (that is, the period of the broadcast channel and the period of the synchronization signal have an integer multiple relationship);

[0370] (2) In a period of time, the synchronization signal has N beams, the broadcast channel has M beams, and M<N;

[0371] (3) In a period of time, the synchronization signal has N beams, the broadcast channel has M beams, and M>N.

[0372] N beams correspond to N times of transmission, N time-frequency domain resource blocks, N beam indexes. For example, in a period of time, the synchronization signal has N beam indexes or N times of transmission, and the broadcast channel has M beam indexes or M times of transmission, and M=N.

[0373] It should be noted that in the embodiments of the present disclosure, the N beams of the synchronization signal correspond to or are associated with the M beams of the broadcast channel, and the period of the broadcast channel and the period of the synchronization signal have an integer multiple relationship (that is, M=N or M≠N). The meaning of association includes: the same (or similar), having the same attribute, or having a corresponding relationship.

[0374] As an implementation manner, for the above-mentioned "in a period of time, the synchronization signal has N beams, the broadcast channel has M beams, and M<N", it includes: in K periods of time, a period of time contains N beams of synchronization signals and M beams of broadcast channels; the M beams of the broadcast channel and the M beams of the synchronization signal are associated, and the indexes of the M beams of the broadcast channel in different time periods are different (the number of beams of the PBCH in different time periods is the same). For example, the corresponding M beams are determined according to the number (such as the radio frame number, the subframe number, and the time slot number).

[0375] Alternatively, the synchronization signal has N beams, which are divided into M groups, and each group of beams of the synchronization signal in the M groups corresponds to a beam of the broadcast channel (that is, the PBCH is a wide beam, and the synchronization signal is a narrow beam. The PBCH is a main measurement beam, and the synchronization signal is an auxiliary measurement beam, and the corresponding uniform division scenarios include: equidistant division, sequential division, and cyclic shift division). For example, the synchronization signal has 8 beams, which are divided into 4 groups, and each group of 2 beams in the 4 groups corresponds to or is associated with a beam of the broadcast channel, and this is equidistant division. For example, the synchronization signal has 8 beams, numbered 0-7, which are divided into 4 groups, 0 and 4 correspond to the first group, 1 and 5, 2 and 6, and 3 and 7 correspond to the 2nd, 3rd, and 4th groups respectively, and this is sequential division. For example, the synchronization signal has 8 beams, numbered 0-7, 701, 123, 345, and 567 correspond to the 4 groups respectively, and this is cyclic shift division.

[0376] Alternatively, the M beams of the broadcast channel and the M beams of the synchronization signal are associated; the remaining beams or N-M beams of the synchronization signal are divided into M groups, and each group of beams of the synchronization signal in the M groups is associated with a beam of the broadcast channel.

[0377] As an implementation, for the above "in a period of time, the synchronization signal has N beams, the broadcast channel has M beams, and M>N", including: in K periods of time, a period of time contains N beams of synchronization signals and M beams of broadcast channels; the M beams of broadcast channels are associated with the N beams of synchronization signals, and the indexes of the M beams of broadcast channels in different time periods are the same (the number of beams of PBCH in different time periods is the same).

[0378] Alternatively, the M beams of broadcast channels are divided into N groups, and a group of beams of broadcast channels in each of the N groups corresponds to a beam of synchronization signals (i.e., PBCH is a wide beam, and synchronization signal is a narrow beam. PBCH is a primary measurement beam, and synchronization signal is a secondary measurement beam, and the corresponding uniform division scenarios include: equidistant division, sequential division, and cyclic shift division).

[0379] Alternatively, N beams of broadcast channels in the M beams of broadcast channels are associated with N beams of synchronization signals; the remaining beams of broadcast channels or M-N beams are divided into N groups, and the beams of broadcast channels in each of the N groups are associated with the beams of synchronization signals.

[0380] The position relationship between the broadcast channel and the synchronization signal will be introduced in detail below.

[0381] 1. The position relationship between the synchronization signal and the PBCH has the following several kinds:

[0382] (1) PSS, SSS, and PBCH are discretely distributed;

[0383] (2) PSS and SSS are not discretely located, and PBCH is discretely distributed with PSS and SSS;

[0384] (3) PSS is discretely distributed, and SSS and PBCH are not discretely located;

[0385] (4) PSS, SSS, and PBCH are not discretely located.

[0386] PSS corresponds to a first synchronization signal, and SSS corresponds to a second synchronization signal. In some embodiments, PSS is used instead of the first synchronization signal, and SSS is used instead of the second synchronization signal.

[0387] In some embodiments, the non-discrete position is embodied as having some kind of connection or constraint in the time domain or the frequency domain;

[0388] The frequency domain is embodied as: for example, within the same narrowband bandwidth, within a certain number of RBs, there is the same frequency reference position, such as a center frequency point, a certain reference frequency point, the upper and lower boundaries of a certain block of time-frequency domain resources, or continuous in the frequency domain, or having a configurable or preconfigured frequency domain interval in the frequency domain.

[0389] It should be noted that, for the PSS, SSS, PBCH discrete distribution in (1) above, as shown in FIG. 16, the PSS, SSS, PBCH are discretely distributed.

[0390] The first synchronization signal, the second synchronization signal, and the broadcast channel have the same center frequency point. The first synchronization signal, the second synchronization signal, and the broadcast channel are periodically transmitted at fixed time domain positions. Moreover, within one radio frame and within a time period, the PSS precedes the SSS. If the PSS, SSS, and PBCH have the same time domain reference point, the PSS has the smallest offset, the SSS has the second smallest offset, and the PBCH has the largest offset relative to the time domain reference point.

[0391] It should be noted that, for the PSS and SSS non-discrete position in (2) above, and the PBCH and PSS, SSS discrete distribution, as shown in FIG. 17, the PSS and SSS are non-discretely distributed, and the PBCH and PSS, SSS are discretely distributed.

[0392] The first synchronization signal and the second synchronization signal are non-discretely distributed in the time domain, which is manifested as, for example, within the same slot, subframe, half frame, radio frame, time period, or window, or consecutively in the time domain, or with a configurable or preconfigured (for example, default or fixed) interval in the time domain. Moreover, the synchronization signal and the PBCH are discretely distributed (non-continuous), have the same center frequency point and the same time reference point but different offsets. Meanwhile, the PSS and the SSS have the same period, and the PBCH has a larger period. In addition, the PSS is transmitted consecutively in multiple beam directions, followed by the SSS transmission, and the SSS is also transmitted consecutively in multiple beam directions. The PSS and the SSS are non-discretely distributed in the time domain. For example, within the same slot, the PSS consecutively occupies the first 4 consecutive OFDM symbols, and the SSS occupies the last 4 consecutive OFDM symbols. For example, in slot 1, the PSS consecutively occupies 4 / 8 consecutive OFDM symbols, and in slot 2, the SSS consecutively occupies 4 / 8 consecutive OFDM symbols. The PBCH is transmitted consecutively in multiple beam directions. For example, the PBCH with 4 beam indexes is transmitted in the OFDM symbols 01, 23, 45, and 67, respectively.

[0393] In some embodiments, as shown in FIG. 18, within one period, the PBCH can be distributed on multiple different OFDM symbols.

[0394] PSS multiple beam transmission is continuous, followed by SSS transmission, also SSS multiple beam is continuous. PSS and SSS are non-discrete in time domain. For example, in the same slot, PSS occupies the first 4 continuous OFDM symbols, and SSS occupies the last 4 continuous OFDM symbols. For example, in slot 1, PSS occupies 4 / 8 continuous OFDM symbols, and in slot 2, SSS occupies 4 / 8 continuous OFDM symbols. The transmission of multiple beam directions of PBCH is non-continuous. For example, PBCH of 4 beam indexes is transmitted in different radio frames respectively. And the difference between the above two figures (i.e. figure 17 and figure 18) is summarized as follows: assuming the period of PBCH is X ms, PBCH is transmitted once in X ms, and PSS / SSS is transmitted multiple times. Transmitting PBCH once includes transmitting PBCH of multiple beam directions, which can be continuous or non-discrete in time domain. It can also be non-continuous or discrete in time domain.

[0395] It should be noted that for the discrete distribution of PSS in (3) above, the positions of SSS and PBCH are non-discrete, as shown in figure 19, PSS is distributed discretely compared with SSS and PBCH (i.e. PSS is not adjacent to the positions of SSS or PBCH), and PBCH is distributed non-discretely with SSS (i.e. PBCH is adjacent to the position of SSS).

[0396] As an implementation, in combination with the case of PBCH shown in figure 18, which is transmitted on multiple OFDM symbols in a period respectively, as shown in figure 20, in the case of discrete distribution of PSS and non-discrete distribution of SSS and PBCH, the number of PBCH adjacent to SSS can be multiple (such as two in sequence).

[0397] PSS, SSS and PBCH have the same bandwidth and the same center frequency point. And SSS and PBCH are continuous in time domain. The difference is that PBCH can surround SSS in time domain, that is, the symbol number of SSS is greater than the starting symbol of PBCH and less than the ending symbol of PBCH, and the frequency domain is discontinuous. In addition, the offset of PSS relative to the time domain reference point is different from that of PBCH or SSS. The offset of PSS relative to the time domain reference point is smaller. At the same time, in a radio frame or in a period of time, PSS is before SSS.

[0398] It should be noted that in combination with the above embodiments, as shown in figure 21, figure 21 shows the case that the third synchronization signal is adjacent to the second synchronization signal and / or the broadcast channel. And as shown in figure 22, figure 22 shows the case that the third synchronization signal is adjacent to the second synchronization signal and / or the first synchronization signal.

[0399] In some embodiments, as shown in FIG. 23, the PBCH can also be mapped into 2 or 3 blocks of time-frequency domain resources.

[0400] The PSS, SSS and PBCH have the same center frequency point. Moreover, the mapping manner of the PBCH includes: first resource mapping, and then second resource mapping. When the resource mapping is performed, the rule followed is first time domain increase, and then frequency domain increase. In addition, the periods of the SSS and the PBCH can be the same or different, or the periods of the SSS and the PBCH have a multiple relationship. In some positions, the PBCH is continuous with the SSS. As shown in FIG. 24, when the PBCH and the SSS are non-discrete in a position, the PBCH can transmit one beam or multiple beams.

[0401] In some embodiments, as shown in FIG. 25 and FIG. 26, the bandwidth of the PSS can be different from that of the SSS, and the bandwidth of the SSS can be the same as or different from that of the PBCH.

[0402] It should be noted that, for the non-discrete PSS, SSS and PBCH positions in (4) above, as shown in FIG. 27, the PSS, SSS and PBCH are non-discrete.

[0403] As an implementation manner, in combination with the case that the PBCH shown in FIG. 18 is respectively in multiple OFDM symbols in a period, as shown in FIG. 28, in the state that the PSS, SSS and PBCH are non-discrete, the period of the PBCH is different from that of the PSS and SSS.

[0404] The PSS, SSS and PBCH are continuous or non-discrete in the time domain. The PSS is in the front, and the PBCH is in the rear. It can be slot-level continuous (positions based on slot n, slot n+1 and slot n+2 respectively), or symbol-level continuous (positions based on symbol n, symbol n+x and symbol n+2x respectively). Moreover, in some time domain positions, the PSS, SSS and PBCH are continuous, in some time domain positions, the PSS / SSS are continuous, and in some time domain positions, the PSS, SSS and PBCH are all discontinuous.

[0405] In summary, the above mainly describes the time domain position relationship, and the frequency domain position relationship is described below.

[0406] For example, as shown in FIG. 29, the first synchronization signal (i.e., PSS) and the second synchronization signal (i.e., SSS) are continuous in the time domain, and are continuous or adjacent to the PBCH in the frequency domain.

[0407] For example, as shown in FIG. 30, the first synchronization signal (i.e., PSS) or the second synchronization signal (i.e., SSS) is continuous or adjacent to the PBCH in the frequency domain, and the second synchronization signal or the first synchronization signal does not overlap with the PBCH in the time-frequency domain.

[0408] For example, according to the frequency domain range, the frequency point position determines whether the synchronization signal and the PBCH are frequency-division. As shown in FIG. 31, at a lower frequency point, the PBCH and the synchronization signal are time-division, and at a higher frequency point, the PBCH and the synchronization signal are frequency-division.

[0409] The position of the synchronization signal and the PBCH is described in detail below in combination with detailed examples.

[0410] When the PBCH has an association relationship with the synchronization signal, or the positions are continuous or non-discrete, there is a beam correspondence / association relationship:

[0411] As shown in FIG. 32, the synchronization signal (such as SSS) is in slot n, and the PBCH is in slot n+x, x is greater than or equal to 1.

[0412] Alternatively, the synchronization signal (such as SSS) is one-to-one corresponding to the beam of the PBCH. For example, in combination with the above FIG. 32, as shown in FIG. 33, the beam indexes of SSS on symbols 0, 3, 6, and 9 are 0, 1, 2, and 3, respectively. The PBCH also uses beam indexes 0, 1, 2, and 3 as beam directions, and the beam index corresponding to symbols 1 and 2 of slot n+1 is 0, the beam index corresponding to symbols 4 and 5 is 1, the beam index corresponding to symbols 7 and 8 is 2, and the beam index corresponding to symbols 10 and 11 is 3.

[0413] In some embodiments, as shown in FIG. 34, the synchronization signal and the PBCH are in the same slot. Moreover, the beams of the synchronization signal and the PBCH have a correspondence relationship or an association relationship. For example, within one slot, the PBCH on symbols 4 and 5 has the same beam index as the synchronization signal on symbol 0. For example, within one slot, the PBCH on symbols 3 and 4 has the same beam index as the synchronization signal on symbol 0.

[0414] That is, the synchronization signal has all beam directions in the slot, but the PBCH has only one beam direction transmission in the slot, and the PBCH transmits its beam direction differently in different slots and different locations in the slot. If the synchronization signal and the PBCH are not in the same slot, it is similar. The main manifestations are: in a PBCH period, given a time length or window, the synchronization signal will be transmitted multiple times, and the synchronization signal contains multiple beam directions. But the PBCH transmits fewer times in the time length or window, and there may be only at least one beam index transmission. In the complete period, the PBCH with all beam indexes will be transmitted.

[0415] In summary, in the above embodiments, the main description is the case of beam transmission in time sequence or the case of beam transmission in different time domain positions.

[0416] However, PSS, SSS and PBCH can also correspond to different beam indexes or beam directions in different frequency domain positions. As shown in FIG. 35, FIG. 35 shows the frequency division multiplexing (FDM) synchronization signal beam.

[0417] The bandwidth spanned by the multiple different beams of the synchronization signal does not exceed X MHz, or X RBs or X REs / subcarriers. For example, X is 2-3 MHz, 5 MHz, that is, no more than 25 RBs.

[0418] It should be noted that the SSS is bound to the PBCH, and the PBCH indicates the number of cells, and the number of cells is bound to the first synchronization signal.

[0419] It can be understood that by sending the initial signal including the synchronization signal, the opposite end device determines the receiving period of the communication signal (i.e., the service signal) carrying the subsequent service data based on the synchronization signal, and determines the start and end of the data bit in the service signal. And the synchronization signal can include: the first synchronization signal and the second synchronization signal for step-by-step synchronization, so that the opposite end device determines the complete synchronization information based on the first synchronization signal and the second synchronization signal, to avoid the loss of synchronization information. At the same time, the initial signal sent can also include a broadcast channel and a first reference signal, so that the opposite end device determines the synchronization signal to be received in the next period based on the broadcast channel and the first reference signal, to ensure the accuracy of the synchronization signal received by the opposite end device. In this way, based on the accurate synchronization signal, the communication efficiency between the communication devices in the wireless communication network can be improved.

[0420] In some embodiments, FIG. 36 is a flow diagram of a signal receiving method according to some embodiments, as shown in FIG. 36, the signal receiving method comprises:

[0421] S3601, receiving an initial signal.

[0422] It should be noted that for the reception of the initial signal, reference can be made to the description of the initial signal in the above embodiments, which will not be repeated here.

[0423] In some embodiments, FIG. 37 is a flow diagram of a signal interaction method according to some embodiments, with the node sending the signal as the first node and the node receiving the signal as the second node. As shown in FIG. 37, the signal interaction method comprises S3701 and S3702.

[0424] S3701, the first node sends an initial signal to the second node.

[0425] S3702, the second node receives the initial signal from the first node.

[0426] It should be noted that in the process of receiving the initial signal from the first node, the second node can perform targeted reception on the information of the specific position of the synchronization signal in the initial signal based on its bandwidth capability, and receive the information in the initial signal that is not received in the synchronization signal in the next time based on the broadcast channel and / or the first reference signal in the initial signal. In this way, based on the position relationship of PSS, SSS and PBCH and the information carried by PSS, SSS, the beam information of PSS, SSS and PBCH is determined, and the nesting relationship when designing PSS, SSS and PBCH can match UEs with different capabilities.

[0427] It can be understood that the signal sending device contains the hardware structure and / or software module corresponding to the execution of each function in order to realize the above functions. Those skilled in the art should easily realize that the algorithm steps of each example described in combination with the embodiments of the present disclosure can be realized in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed in hardware or computer software driven hardware depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present disclosure.

[0428] The embodiments of the present disclosure can divide the functional modules of the signal sending device according to the method embodiments described above. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one functional module. The integrated module can be implemented in the form of hardware or software. It should be noted that the division of the modules in the embodiments of the present disclosure is illustrative, and is only a logical functional division. When actually implemented, another division mode can be used. The following will be described taking the example of dividing each functional module according to each function.

[0429] FIG. 38 is a structural schematic diagram of a signal sending device according to some embodiments. The signal sending device can perform the signal sending method provided by the embodiments of the method S301 described above. As shown in FIG. 38, the signal sending device 3800 includes a sending module 3801.

[0430] The sending module 3801 is configured to send an initial signal. The initial signal includes at least one of the following: a synchronization signal, a broadcast channel, and a first reference signal. The synchronization signal includes at least one of the following: a first synchronization signal, a second synchronization signal, and a third synchronization signal.

[0431] In some embodiments, the synchronization signal carries at least one of the following information: cell information, beam information, and location information.

[0432] The location information is used to determine at least one of the following: a time domain position of the synchronization signal, a time-frequency domain position of the broadcast channel, and whether to associate the broadcast channel.

[0433] The cell information includes at least one of the following: cell identification information, cell index information, and cell category information.

[0434] The beam information includes at least one of the following: index information of the beam, quantity information of the beam, index information of the synchronization signal, and quantity information of the synchronization signal.

[0435] In some embodiments, the first synchronization signal and the second synchronization signal satisfy at least one of the following:

[0436] The first synchronization signal is a synchronization signal of a first cell, and the second synchronization signal is a synchronization signal of a second cell.

[0437] The first synchronization signal carries first information, and the second synchronization signal carries second information. The first information includes at least one of the following: first cell information, first beam information, and first location information. The second information includes at least one of the following: second cell information, second beam information, and second location information.

[0438] The first synchronization signal is used for measurement or synchronization of the first cell, and the second synchronization signal is used for measurement or synchronization of the second cell.

[0439] The first synchronization signal is a primary synchronization signal, and the second synchronization signal is a secondary synchronization signal.

[0440] The second synchronization signal is determined according to the first synchronization signal.

[0441] In some embodiments, the synchronization signals include the first synchronization signal, the second synchronization signal, and the third synchronization signal.

[0442] In some embodiments, the first synchronization signal, the second synchronization signal, and the third synchronization signal satisfy at least one of the following:

[0443] The first synchronization signal is a primary synchronization signal, the second synchronization signal is a primary synchronization signal, and the third synchronization signal is a secondary synchronization signal.

[0444] The first synchronization signal is a primary synchronization signal, the second synchronization signal is a secondary synchronization signal, and the third synchronization signal is a secondary synchronization signal.

[0445] The first synchronization signal is a secondary synchronization signal, the second synchronization signal is a primary synchronization signal, and the third synchronization signal is a secondary synchronization signal.

[0446] The first synchronization signal is a primary synchronization signal, the second synchronization signal is a secondary synchronization signal, and the third synchronization signal is a secondary synchronization signal.

[0447] The first synchronization signal and the second synchronization signal carry first information, and the third synchronization signal carries second information, the first information including first cell information, first beam information, and first location information, and the second information including second cell information, second beam information, and second location information.

[0448] The first synchronization signal carries first information, and the second synchronization signal and the third synchronization signal carry second information.

[0449] The third synchronization signal is determined according to the first synchronization signal and the second synchronization signal.

[0450] The second synchronization signal and / or the third synchronization signal is determined according to the first synchronization signal.

[0451] In some embodiments, the synchronization signals satisfy at least one of the following:

[0452] The number of frequency domain resources of the synchronization signals is not more than 25.

[0453] The number of time domain resources of the synchronization signals is at least one of the set {1, 2, 3, 4, 5, 6, 8}.

[0454] The synchronization signals are determined by a first subsequence and a second subsequence, and the second subsequence is determined by the first subsequence, or the second subsequence and the first subsequence satisfy a predefined rule.

[0455] The synchronization signal adopts a mapping mode of time domain first and frequency domain second;

[0456] The synchronization signal is mapped according to a time-frequency domain resource block index, and the time-frequency domain resource block is a resource set defined based on preset time domain resources and frequency domain resources;

[0457] The mapping mode or sequence of the synchronization signal is determined according to a time domain position.

[0458] In some embodiments, the predefined rule includes any of the following:

[0459] The two sequences are the same, or complementary, or opposite;

[0460] The two sequences have the same initialization value;

[0461] Both of the two sequences are generated from the same ZC sequence, or m sequence, or gold sequence;

[0462] The second subsequence is part of the first subsequence, or the second subsequence is a truncated sequence of the first subsequence;

[0463] The resources of the first subsequence and the second subsequence are continuous in the time domain or the frequency domain;

[0464] The first subsequence and the second subsequence carry the same information;

[0465] The first subsequence and the second subsequence carry different information;

[0466] The first subsequence and the second subsequence carry different bit positions of the same information;

[0467] The first subsequence and the second subsequence have the same beam direction;

[0468] The first subsequence and the second subsequence have the same power.

[0469] In some embodiments, the first synchronization signal and the second synchronization signal satisfy at least one of the following:

[0470] The beam index of the first synchronization signal and the beam index of the second synchronization signal have a correlation relationship;

[0471] The first synchronization signal and the second synchronization signal have the same port number, or the difference between the port number of the first synchronization signal and the port number of the second synchronization signal is 1 or a preset value;

[0472] The first synchronization signal and the second synchronization signal have the same power, or the power of the first synchronization signal and the power of the second synchronization signal have an offset;

[0473] The number of beams of the first synchronization signal and the number of beams of the second synchronization signal have a multiple relationship;

[0474] The beam index value range of the first synchronization signal and the beam index value range of the second synchronization signal have a containing relationship.

[0475] In some embodiments, the first reference signal is at least one of the following: a reference signal of a broadcast channel, a reference signal of a control channel, a reference signal of a data channel carrying system information, a measurement reference signal, a phase tracking reference signal.

[0476] In some embodiments, the first reference signal satisfies at least one of the following:

[0477] The first reference signal indicates a beam index;

[0478] The first reference signal indicates a beam index of the associated first synchronization signal or a beam index of the second synchronization signal;

[0479] The beam index of the first reference signal is associated with a synchronization signal;

[0480] The first reference signal is associated with the first synchronization signal or the second synchronization signal in the synchronization signal;

[0481] The first reference signal indicates a power of a broadcast channel;

[0482] The first reference signal is used for half-frame indication or system frame number indication;

[0483] The first reference signal indicates a subcarrier spacing;

[0484] The first reference signal indicates a resource pattern of a broadcast channel, or a type / format, or indicates a location relationship with a control channel;

[0485] The sequence corresponding to the first reference signal is determined by a synchronization signal;

[0486] The sequence corresponding to the first reference signal is determined by information carried by the synchronization signal;

[0487] The sequence corresponding to the first reference signal is determined by cell information carried by the synchronization signal;

[0488] The sequence corresponding to the first reference signal is scrambled according to the cell information carried by the synchronization signal;

[0489] The sequence corresponding to the first reference signal is initialized for scrambling according to the cell information carried by the synchronization signal;

[0490] In some embodiments, the broadcast channel is determined according to the synchronization signal.

[0491] In some embodiments, the broadcast channel is determined according to the synchronization signal, including at least one of the following:

[0492] The broadcast channel is scrambled according to information carried by the second synchronization signal.

[0493] The broadcast channel is scrambled according to information carried by the second synchronization signal.

[0494] The broadcast channel is initialized for scrambling according to information carried by the second synchronization signal.

[0495] The position of the broadcast channel is determined according to the synchronization signal.

[0496] The beam of the broadcast channel is associated with the synchronization signal.

[0497] The reference signal of the broadcast channel is determined according to the synchronization signal.

[0498] The reference signal of the broadcast channel is determined according to the second synchronization signal.

[0499] The reference signal of the broadcast channel is determined according to the third synchronization signal.

[0500] The reference signal of the broadcast channel is determined according to the second synchronization signal and the third synchronization signal.

[0501] The reference signal of the broadcast channel is determined according to the first synchronization signal, the second synchronization signal and the third synchronization signal.

[0502] The reference signal of the broadcast channel is determined according to information carried by the synchronization signal.

[0503] The reference signal of the broadcast channel is determined according to information carried by the second synchronization signal.

[0504] The reference signal of the broadcast channel is determined according to the first information or the second information of the synchronization signal.

[0505] In some embodiments, the broadcast channel satisfies at least one of the following:

[0506] The broadcast channel has a number of symbols or a number of slots in time domain which is at least one of the set {1, 2, 3, 4, 6, 8, 12, 14};

[0507] The broadcast channel has a number of resource blocks in frequency domain which is at least one of the set {6, 12, 16, 18, 24, 32, 48, 96}.

[0508] The indication of the broadcast channel includes at least one of the following: cell type information, cell identification information, location information, bandwidth, system information block scheduling information, pattern of the synchronization signal, pattern of the second synchronization signal, pattern of the third synchronization signal.

[0509] In some embodiments, the position relationship between the broadcast channel and the first synchronization signal, the second synchronization signal in the synchronization signal satisfies at least one of the following:

[0510] The broadcast channel, the first synchronization signal and the second synchronization signal are adjacent to each other;

[0511] The broadcast channel, the first synchronization signal and the second synchronization signal have the same center frequency point or reference frequency point;

[0512] The first synchronization signal is in front of the second synchronization signal, and the broadcast channel is behind the second synchronization signal;

[0513] The first synchronization signal and the second synchronization signal are adjacent in time domain, coincide or overlap in frequency domain, and the broadcast channel is behind and adjacent to the synchronization signal;

[0514] The first synchronization signal and the second synchronization signal are adjacent in time domain and coincide or overlap in frequency domain, and the broadcast channel overlaps the synchronization signal in time domain and is continuous or does not overlap the synchronization signal in frequency domain;

[0515] The broadcast channel and the synchronization signal have the same time reference point, different offset or different period;

[0516] The first synchronization signal and the second synchronization signal are adjacent, and the broadcast channel and the synchronization signal have different periods or offsets;

[0517] The second synchronization signal and the broadcast channel are adjacent, and the first synchronization signal and the second synchronization signal have different time domain positions, offsets or periods;

[0518] The first synchronization signal and the second synchronization signal are adjacent, and the broadcast channel and the first synchronization signal and / or the second synchronization signal have different offsets or periods;

[0519] The broadcast channel and the second synchronization signal are adjacent, and the first synchronization signal and the broadcast channel and / or the second synchronization signal have different offsets or periods;

[0520] The first synchronization signal and the second synchronization signal are adjacent in time domain, and the first synchronization signal and / or the second synchronization signal are adjacent to the broadcast channel in frequency domain;

[0521] The first synchronization signal or the second synchronization signal is continuous or adjacent to the broadcast channel in frequency domain, and the second synchronization signal or the first synchronization signal is non-overlapping or has different offsets or periods with the broadcast channel in time-frequency domain.

[0522] In some embodiments, the position relationship of the broadcast channel and the first synchronization signal, the second synchronization signal and the third synchronization signal in the synchronization signal satisfies at least one of the following:

[0523] The third synchronization signal is adjacent to the second synchronization signal and / or the broadcast channel;

[0524] The third synchronization signal is adjacent to the second synchronization signal and / or the first synchronization signal;

[0525] The third synchronization signal is adjacent to the broadcast channel.

[0526] The first synchronization signal, the second synchronization signal, the third synchronization signal, and the broadcast channel have the same reference frequency point.

[0527] In some embodiments, the broadcast channel and the synchronization signal relationship satisfies at least one of the following:

[0528] In a period of time, the synchronization signal has N beams, the broadcast channel has M beams, and M=N.

[0529] In a period of time, the synchronization signal has N beams, the broadcast channel has M beams, and M<N.

[0530] In a period of time, the synchronization signal has N beams, the broadcast channel has M beams, and M>N.

[0531] In some embodiments, the above-mentioned "in a period of time, the synchronization signal has N beams, the broadcast channel has M beams, and M<N" includes:

[0532] In K periods of time, a period of time contains N beams of synchronization signals and M beams of broadcast channels.

[0533] The M beams of broadcast channels and the M beams of synchronization signals in the N beams of synchronization signals are associated, and the indexes of the M beams of broadcast channels in different time periods are different.

[0534] In some embodiments, the above-mentioned "in a period of time, the synchronization signal has N beams, the broadcast channel has M beams, and M<N" includes:

[0535] The N beams of synchronization signals are divided into M groups, and the beams of synchronization signals in each group correspond to one beam of the broadcast channel.

[0536] In some embodiments, the above-mentioned "in a period of time, the synchronization signal has N beams, the broadcast channel has M beams, and M<N" includes:

[0537] The M beams of broadcast channels and the M beams of synchronization signals in the N beams of synchronization signals are associated.

[0538] The remaining beams of synchronization signals or N-M beams are divided into M groups, and the beams of synchronization signals in each group are associated with one beam of the broadcast channel.

[0539] In some embodiments, the above-mentioned "in a period of time, the synchronization signal has N beams, the broadcast channel has M beams, and M>N" includes:

[0540] In K periods of time, a period of time contains N beams of synchronization signals and M beams of broadcast channels.

[0541] The M beams of the broadcast channel are associated with N beams of the synchronization signal, and the indices of the M beams of the broadcast channel in different time periods are the same.

[0542] In some embodiments, the above-mentioned "in a period of time, the synchronization signal has N beams, the broadcast channel has M beams, and M>N" includes:

[0543] The M beams of the broadcast channel are divided into N groups, and a group of beams of the broadcast channel in each group corresponds to a beam of the synchronization signal.

[0544] In some embodiments, the above-mentioned "in a period of time, the synchronization signal has N beams, the broadcast channel has M beams, and M>N" includes:

[0545] The M beams of the broadcast channel are associated with N beams of the synchronization signal.

[0546] The remaining beams or M-N beams of the broadcast channel are divided into N groups, and the beams of the broadcast channel in each group are associated with the beams of the synchronization signal.

[0547] In some embodiments, the N beams of the synchronization signal correspond to or are associated with the M beams of the broadcast channel.

[0548] In some embodiments, the period of the broadcast channel and the period of the synchronization signal have an integer multiple relationship.

[0549] FIG. 39 is a structural schematic diagram of a signal receiving apparatus according to some embodiments. The signal receiving apparatus can perform the signal receiving method provided by the embodiments of the above-mentioned method S3601. As shown in FIG. 39, the signal receiving apparatus 3900 includes a receiving module 3901;

[0550] The receiving module 3901 is configured to receive an initial signal. The initial signal includes at least one of the following: a synchronization signal, a broadcast channel, and a first reference signal. The synchronization signal includes at least one of the following: a first synchronization signal, a second synchronization signal, and a third synchronization signal.

[0551] In some embodiments, the synchronization signal carries at least one of the following information: cell information, beam information, and location information.

[0552] The location information is used to determine at least one of the following: a time domain location of the synchronization signal, a time-frequency domain location of the broadcast channel, and whether to associate the broadcast channel.

[0553] The cell information includes at least one of the following: cell identification information, cell index information, and cell category information.

[0554] The beam information includes at least one of index information of the beam, quantity information of the beam, index information of the synchronization signal, and quantity information of the synchronization signal.

[0555] In some embodiments, the first synchronization signal and the second synchronization signal satisfy at least one of the following:

[0556] The first synchronization signal is a synchronization signal of the first cell, and the second synchronization signal is a synchronization signal of the second cell.

[0557] The first synchronization signal carries first information, and the second synchronization signal carries second information, the first information including at least one of first cell information, first beam information, and first location information, and the second information including at least one of second cell information, second beam information, and second location information.

[0558] The first synchronization signal is used for measurement or synchronization of the first cell, and the second synchronization signal is used for measurement or synchronization of the second cell.

[0559] The first synchronization signal is a primary synchronization signal, and the second synchronization signal is a secondary synchronization signal.

[0560] The second synchronization signal is determined according to the first synchronization signal.

[0561] In some embodiments, the synchronization signal includes the first synchronization signal, the second synchronization signal, and a third synchronization signal.

[0562] In some embodiments, the first synchronization signal, the second synchronization signal, and the third synchronization signal satisfy at least one of the following:

[0563] The first synchronization signal is a first primary synchronization signal, the second synchronization signal is a second primary synchronization signal, and the third synchronization signal is a secondary synchronization signal.

[0564] The first synchronization signal is a primary synchronization signal, the second synchronization signal is a first secondary synchronization signal, and the third synchronization signal is a second secondary synchronization signal.

[0565] The first synchronization signal is a first secondary synchronization signal, the second synchronization signal is a primary synchronization signal, and the third synchronization signal is a second secondary synchronization signal.

[0566] The first synchronization signal is a first secondary synchronization signal, the second synchronization signal is a second secondary synchronization signal, and the third synchronization signal is a primary synchronization signal.

[0567] The first synchronization signal and the second synchronization signal carry first information, and the third synchronization signal carries second information, the first information including first cell information, first beam information, and first location information, and the second information including second cell information, second beam information, and second location information.

[0568] The first synchronization signal carries first information, and the second and third synchronization signals carry second information.

[0569] The third synchronization signal is determined according to the first and second synchronization signals.

[0570] The second and / or third synchronization signal is determined according to the first synchronization signal.

[0571] In some embodiments, the synchronization signal satisfies at least one of the following:

[0572] The synchronization signal has a frequency domain resource quantity of no more than 25.

[0573] The synchronization signal has a time domain resource quantity of at least one of the set {1, 2, 3, 4, 5, 6, 8}.

[0574] The synchronization signal is determined by a first sub-sequence and a second sub-sequence, and the second sub-sequence is determined by the first sub-sequence, or the second sub-sequence satisfies a predefined rule with the first sub-sequence.

[0575] The synchronization signal adopts a mapping manner of time domain first and frequency domain second.

[0576] The synchronization signal is mapped according to a time-frequency domain resource block index, and the time-frequency domain resource block is a resource set defined based on a preset time domain resource and frequency domain resource.

[0577] The mapping manner or sequence of the synchronization signal is determined according to a time domain position.

[0578] In some embodiments, the predefined rule includes any of the following:

[0579] The two sequences are the same, or complementary, or opposite.

[0580] The two sequences have the same initialization value.

[0581] The two sequences are both generated from the same ZC sequence, or m sequence, or gold sequence.

[0582] The second sub-sequence is part of the first sub-sequence, or the second sub-sequence is a truncated sequence of the first sub-sequence.

[0583] The resources of the first sub-sequence and the second sub-sequence are continuous in the time domain or the frequency domain.

[0584] The first sub-sequence and the second sub-sequence carry the same information.

[0585] The first sub-sequence and the second sub-sequence carry different information.

[0586] The first sub-sequence and the second sub-sequence carry different bits of the same information.

[0587] The first subsequence and the second subsequence have the same beam direction.

[0588] The first subsequence and the second subsequence have the same power.

[0589] In some embodiments, the first synchronization signal and the second synchronization signal satisfy at least one of the following:

[0590] The beam index of the first synchronization signal and the beam index of the second synchronization signal have a correlation relationship;

[0591] The first synchronization signal and the second synchronization signal have the same port number, or the difference between the port number of the first synchronization signal and the port number of the second synchronization signal is 1 or a preset value;

[0592] The first synchronization signal and the second synchronization signal have the same power, or the power of the first synchronization signal and the power of the second synchronization signal have an offset;

[0593] The number of beams of the first synchronization signal and the number of beams of the second synchronization signal have a multiple relationship;

[0594] The value range of the beam index of the first synchronization signal and the value range of the beam index of the second synchronization signal have a containing relationship.

[0595] In some embodiments, the first reference signal is at least one of the following: a reference signal of a broadcast channel, a reference signal of a control channel, a reference signal of a data channel carrying system information, a measurement reference signal, and a phase tracking reference signal.

[0596] In some embodiments, the first reference signal satisfies at least one of the following:

[0597] The first reference signal indicates a beam index;

[0598] The first reference signal indicates the beam index of the first synchronization signal or the beam index of the second synchronization signal associated therewith;

[0599] The beam index of the first reference signal is associated with a synchronization signal;

[0600] The first reference signal indicates an association with the first synchronization signal or the second synchronization signal in a synchronization signal;

[0601] The first reference signal indicates the power of a broadcast channel;

[0602] The first reference signal is used for half-frame indication or system frame number indication;

[0603] The first reference signal indicates a subcarrier spacing;

[0604] The first reference signal indicates the resource pattern of a broadcast channel, or the type / format, or indicates the location relationship with a control channel;

[0605] The sequence corresponding to the first reference signal is determined by the synchronization signal;

[0606] The sequence corresponding to the first reference signal is determined by information carried by the synchronization signal;

[0607] The sequence corresponding to the first reference signal is determined by cell information carried by the synchronization signal;

[0608] The sequence corresponding to the first reference signal is scrambled according to cell information carried by the synchronization signal;

[0609] The sequence corresponding to the first reference signal is initialized for scrambling according to cell information carried by the synchronization signal.

[0610] In some embodiments, the broadcast channel is determined according to the synchronization signal.

[0611] In some embodiments, the broadcast channel is determined according to the synchronization signal, including at least one of:

[0612] The broadcast channel is determined according to information carried by the second synchronization signal;

[0613] The broadcast channel is scrambled according to information carried by the second synchronization signal;

[0614] The broadcast channel is initialized for scrambling according to information carried by the second synchronization signal;

[0615] The position of the broadcast channel is determined according to the synchronization signal;

[0616] The beam of the broadcast channel is associated with the synchronization signal;

[0617] The reference signal of the broadcast channel is determined according to the synchronization signal;

[0618] The reference signal of the broadcast channel is determined according to the second synchronization signal;

[0619] The reference signal of the broadcast channel is determined according to the third synchronization signal;

[0620] The reference signal of the broadcast channel is determined according to the second synchronization signal and the third synchronization signal;

[0621] The reference signal of the broadcast channel is determined according to the first synchronization signal, the second synchronization signal and the third synchronization signal;

[0622] The reference signal of the broadcast channel is determined according to information carried by the synchronization signal;

[0623] The reference signal of the broadcast channel is determined according to information carried by the second synchronization signal;

[0624] The reference signal of the broadcast channel is determined according to the first information or the second information of the synchronization signal.

[0625] In some embodiments, the broadcast channel satisfies at least one of the following:

[0626] The number of symbols or the number of slots of the broadcast channel in time domain is at least one of the set {1, 2, 3, 4, 6, 8, 12, 14};

[0627] The number of resource blocks of the broadcast channel in frequency domain is at least one of the set {6, 12, 16, 18, 24, 32, 48, 96}.

[0628] The indication of the broadcast channel comprises at least one of the following: cell type information, cell identification information, location information, bandwidth, system information block scheduling information, pattern of the first synchronization signal, pattern of the second synchronization signal, pattern of the third synchronization signal.

[0629] In some embodiments, the position relationship between the broadcast channel and the first synchronization signal, the second synchronization signal in the synchronization signal satisfies at least one of the following:

[0630] The broadcast channel, the first synchronization signal and the second synchronization signal are adjacent to each other;

[0631] The broadcast channel, the first synchronization signal and the second synchronization signal have the same center frequency or reference frequency point;

[0632] The first synchronization signal is in front, the second synchronization signal is after the first synchronization signal, and the broadcast channel is after the second synchronization signal;

[0633] The first synchronization signal and the second synchronization signal are adjacent in time domain, coincide or overlap in frequency domain, and the broadcast channel is after the synchronization signal and adjacent to the synchronization signal;

[0634] The first synchronization signal and the second synchronization signal are adjacent in time domain, coincide or overlap in frequency domain, and the broadcast channel overlaps the synchronization signal in time domain, and is continuous or not overlapping in frequency domain;

[0635] The broadcast channel and the synchronization signal have the same time reference point, different offset or different period;

[0636] The first synchronization signal and the second synchronization signal are adjacent, and the broadcast channel and the synchronization signal have different periods or offsets;

[0637] The second synchronization signal and the broadcast channel are adjacent, and the first synchronization signal and the second synchronization signal have different time domain positions, offsets or periods;

[0638] The first synchronization signal and the second synchronization signal are adjacent, and the broadcast channel and the first synchronization signal and / or the second synchronization signal have different offsets or periods;

[0639] The broadcast channel and the second synchronization signal are adjacent, and the first synchronization signal has a different offset or period from the broadcast channel and / or the second synchronization signal.

[0640] The first synchronization signal is adjacent in time domain to the second synchronization signal, and the first synchronization signal and / or the second synchronization signal is adjacent in frequency domain to the broadcast channel.

[0641] The first synchronization signal or the second synchronization signal is continuous or adjacent in frequency domain to the broadcast channel, and the second synchronization signal or the first synchronization signal is non-overlapping in time-frequency domain with the broadcast channel or has a different offset or period.

[0642] In some embodiments, the position relationship of the broadcast channel and the first synchronization signal, the second synchronization signal, and the third synchronization signal in the synchronization signal satisfies at least one of the following:

[0643] The third synchronization signal is adjacent to the second synchronization signal and / or the broadcast channel.

[0644] The third synchronization signal is adjacent to the second synchronization signal and / or the first synchronization signal.

[0645] The third synchronization signal is adjacent to the broadcast channel.

[0646] The first synchronization signal, the second synchronization signal, and the third synchronization signal have the same reference frequency point as the broadcast channel.

[0647] In some embodiments, the broadcast channel and the synchronization signal relationship satisfy at least one of the following:

[0648] In a period of time, the synchronization signal has N beams, the broadcast channel has M beams, and M=N.

[0649] In a period of time, the synchronization signal has N beams, the broadcast channel has M beams, and M<N.

[0650] In a period of time, the synchronization signal has N beams, the broadcast channel has M beams, and M>N.

[0651] In some embodiments, the above-mentioned "in a period of time, the synchronization signal has N beams, the broadcast channel has M beams, and M<N" includes:

[0652] In K periods of time, a period of time includes N beams of synchronization signals and M beams of broadcast channels.

[0653] The M beams of broadcast channels and the M beams of synchronization signals in the N synchronization signals are associated, and the indexes of the M beams of broadcast channels in different time periods are different.

[0654] In some embodiments, the above-mentioned "in a period of time, the synchronization signal has N beams, the broadcast channel has M beams, and M<N" includes:

[0655] The synchronization signal has N beams divided into M groups, and the beams of the synchronization signal in each group correspond to one beam of the broadcast channel.

[0656] In some embodiments, the above “within a period of time, the synchronization signal has N beams, the broadcast channel has M beams, and M < N” includes:

[0657] The beams of M broadcast channels are associated with the beams of M synchronization signals among the N synchronization signals;

[0658] The remaining beams of the synchronization signal or N - M beams are divided into M groups, and the beams of the synchronization signal in each group are associated with one beam of the broadcast channel.

[0659] In some embodiments, the above “within a period of time, the synchronization signal has N beams, the broadcast channel has M beams, and M > N” includes:

[0660] During K periods of time, within one period of time, it includes N beams of the synchronization signal and M beams of the broadcast channel;

[0661] The beams of M broadcast channels are associated with the N beams of the synchronization signal, and the indexes of the M beams of the broadcast channel in different periods are the same.

[0662] In some embodiments, the above “within a period of time, the synchronization signal has N beams, the broadcast channel has M beams, and M > N” includes:

[0663] The M beams of the broadcast channel are divided into N groups, and one group of beams of the broadcast channel in each group corresponds to one beam of the synchronization signal.

[0664] In some embodiments, the above “within a period of time, the synchronization signal has N beams, the broadcast channel has M beams, and M > N” includes:

[0665] N beams of the M beams of the broadcast channel are associated with N beams of the synchronization signal;

[0666] The remaining beams of the broadcast channel or M - N beams are divided into N groups, and the beams of the broadcast channel in each group are associated with the beams of the synchronization signal.

[0667] In some embodiments, the N beams of the synchronization signal correspond to or are associated with the M beams of the broadcast channel.

[0668] In some embodiments, there is an integer multiple relationship between the period of the broadcast channel and the period of the synchronization signal.

[0669] In the case of implementing the functions of the above-mentioned integrated modules in the form of hardware, the embodiments of the present disclosure provide another structure of the signal sending device involved in the above-mentioned embodiments. As shown in FIG. 40, the signal sending device 4000 includes a processor 4002, a bus 4004. In some embodiments, the signal sending device can further include a memory 4001; in some embodiments, the signal sending device can further include a communication interface 4003.

[0670] The processor 4002 can be various exemplary logical blocks, modules and circuits described in combination with the embodiments of the present disclosure. The processor 4002 can be a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a transistor logic device, a hardware component or any combination thereof. The processor 4002 can implement or execute various exemplary logical blocks, modules and circuits described in combination with the embodiments of the present disclosure. The processor 4002 can also be a combination of computing functions, such as a combination of one or more microprocessors, a combination of DSP and microprocessor, etc.

[0671] The communication interface 4003 is used to connect with other devices through a communication network. The communication network can be an Ethernet, a wireless access network, a wireless local area network (WLAN) and the like.

[0672] The memory 4001 can be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0673] As an implementation manner, the memory 4001 can exist independently of the processor 4002, and the memory 4001 can be connected with the processor 4002 through the bus 4004, for storing instructions or program codes. When the processor 4002 invokes and executes the instructions or program codes stored in the memory 4001, the signal sending method provided by the embodiments of the present disclosure can be implemented.

[0674] In another implementation manner, the memory 4001 can also be integrated with the processor 4002.

[0675] The bus 4004 can be an extended industry standard architecture (EISA) bus or the like. The bus 4004 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in FIG. 40, but it does not mean that there is only one bus or only one type of bus.

[0676] In some embodiments, the signal receiving method can also correspond to a device as shown in the signal sending device 4000.

[0677] Some embodiments of the present disclosure provide a computer readable storage medium (for example, a non-transitory computer readable storage medium) having computer program instructions stored therein, which, when executed on a computer, cause the computer to perform the signal sending method or the signal receiving method according to any one of the above embodiments.

[0678] Exemplarily, the above computer readable storage medium can include, but is not limited to, a magnetic storage device (for example, a hard disk, a floppy disk, or a magnetic tape, etc.), an optical disc (for example, a compact disk (CD), a digital versatile disk (DVD), etc.), a smart card, and a flash memory device (for example, an erasable programmable read-only memory (EPROM), a card, a stick, or a key drive, etc.). The various computer readable storage media described in the present disclosure can represent one or more devices and / or other machine readable storage media for storing information. The term "machine readable storage medium" can include, but is not limited to, a wireless channel and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0679] The embodiments of the present disclosure provide a computer program product containing instructions, which, when executed on a computer, cause the computer to perform the signal sending method or the signal receiving method according to any one of the above embodiments.

[0680] The above description is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or replacements within the technical scope disclosed in the present disclosure should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A signal sending method, comprising: sending an initial signal; wherein the initial signal comprises at least one of the following: a synchronization signal, a broadcast channel, a first reference signal; the synchronization signal comprises at least one of the following: a first synchronization signal, a second synchronization signal, a third synchronization signal.

2. The method of claim 1, wherein, The synchronization signal carries at least one of the following information: cell information, beam information, location information; wherein the location information is used to determine at least one of the following: the time domain location of the synchronization signal, the time-frequency domain location of the broadcast channel, whether to associate the broadcast channel; The cell information comprises at least one of the following: cell identification information, cell index information, cell category information; The beam information comprises at least one of the following: index information of the beam, quantity information of the beam, index information of the synchronization signal, quantity information of the synchronization signal.

3. The method of claim 1 or 2, wherein, The first synchronization signal and the second synchronization signal satisfy at least one of the following: The first synchronization signal is the synchronization signal of a first cell, and the second synchronization signal is the synchronization signal of a second cell; The first synchronization signal carries first information, and the second synchronization signal carries second information, the first information comprising at least one of first cell information, first beam information, first location information, and the second information comprising at least one of second cell information, second beam information, second location information; The first synchronization signal is used for measurement or synchronization of the first cell, and the second synchronization signal is used for measurement or synchronization of the second cell; The first synchronization signal is a primary synchronization signal, and the second synchronization signal is a secondary synchronization signal; The second synchronization signal is determined according to the first synchronization signal.

4. The method of any one of claims 1 to 3, wherein, The synchronization signal comprises the first synchronization signal, the second synchronization signal and the third synchronization signal.

5. The method of claim 4, wherein, The first synchronization signal, the second synchronization signal and the third synchronization signal satisfy at least one of the following: The first synchronization signal is a first primary synchronization signal, the second synchronization signal is a second primary synchronization signal, and the third synchronization signal is a secondary synchronization signal; The first synchronization signal is a primary synchronization signal, the second synchronization signal is a first secondary synchronization signal, and the third synchronization signal is a second secondary synchronization signal; The first synchronization signal is a first secondary synchronization signal, the second synchronization signal is a primary synchronization signal, and the third synchronization signal is a second secondary synchronization signal; The first synchronization signal is a first secondary synchronization signal, the second synchronization signal is a second secondary synchronization signal, and the third synchronization signal is a primary synchronization signal; the first synchronization signal and the second synchronization signal carry first information, and the third synchronization signal carries second information, the first information comprising first cell information, first beam information, first location information, and the second information comprising second cell information, second beam information, second location information; The first synchronization signal carries the first information, and the second synchronization signal and the third synchronization signal carry the second information; The third synchronization signal is determined according to the first synchronization signal and the second synchronization signal; The second synchronization signal and / or the third synchronization signal is determined according to the first synchronization signal.

6. The method of any one of claims 1 to 5, wherein, The synchronization signal satisfies at least one of the following: The number of frequency domain resources of the synchronization signal is not more than 25; The number of time domain resources of the synchronization signal is at least one of the set {1, 2, 3, 4, 5, 6, 8}; The synchronization signal is determined by a first subsequence and a second subsequence, and the second subsequence is determined by the first subsequence, or the second subsequence satisfies a predefined rule with the first subsequence; The synchronization signal adopts a mapping mode of time domain first and frequency domain second; The synchronization signal is mapped according to a time-frequency domain resource block index, and the time-frequency domain resource block is a resource set defined based on a preset time domain resource and a frequency domain resource; The mapping mode or sequence of the synchronization signal is determined according to a time domain position.

7. The method of claim 6, wherein, The predefined rule includes any one of the following: The two sequences are the same, or complementary, or opposite; The two sequences have the same initialization value; Both of the two sequences are generated from the same ZC sequence, or m sequence, or gold sequence; The second subsequence is part of the first subsequence, or the second subsequence is a truncated sequence of the first subsequence; The resources of the first subsequence and the second subsequence are continuous in time domain or frequency domain; The first subsequence and the second subsequence carry the same information; The first subsequence and the second subsequence carry different information; The first subsequence and the second subsequence carry different bit positions of the same information; The first subsequence and the second subsequence have the same beam direction; The first subsequence and the second subsequence have the same power.

8. The method of any one of claims 1 to 7, wherein, The first synchronization signal and the second synchronization signal satisfy at least one of the following: The beam index of the first synchronization signal and the beam index of the second synchronization signal have a correlation relationship; The first synchronization signal and the second synchronization signal have the same port number, or the difference between the port number of the first synchronization signal and the port number of the second synchronization signal is 1 or a preset value; The first synchronization signal and the second synchronization signal have the same power, or the power of the first synchronization signal and the power of the second synchronization signal have an offset; The number of beams of the first synchronization signal and the number of beams of the second synchronization signal have a multiple relationship; The value range of the beam index of the first synchronization signal and the value range of the beam index of the second synchronization signal have a containing relationship.

9. The method of any one of claims 1 to 8, wherein, The first reference signal is at least one of the following: a reference signal of the broadcast channel, a reference signal of the control channel, a reference signal of the data channel carrying system information, a measurement reference signal, and a phase tracking reference signal.

10. The method of claim 1 or 9, wherein, The first reference signal satisfies at least one of the following: The first reference signal indicates a beam index; The first reference signal indicates the beam index of the associated first synchronization signal or the beam index of the second synchronization signal; The beam index of the first reference signal is associated with the synchronization signal; The first reference signal is associated with the first synchronization signal or the second synchronization signal in the synchronization signal; The first reference signal indicates the power of the broadcast channel; The first reference signal is used for half-frame indication or system frame number indication; The first reference signal indicates a subcarrier spacing; The first reference signal indicates a resource pattern, or type or format of the broadcast channel, or indicates a location relationship with a control channel; The sequence corresponding to the first reference signal is determined by the synchronization signal; The sequence corresponding to the first reference signal is determined by information carried by the synchronization signal; The sequence corresponding to the first reference signal is determined by cell information carried by the synchronization signal; The sequence corresponding to the first reference signal is scrambled according to cell information carried by the synchronization signal; The sequence corresponding to the first reference signal is initialized for scrambling according to cell information carried by the synchronization signal.

11. The method of any one of claims 1 to 10, wherein, The broadcast channel is determined according to the synchronization signal.

12. The method of claim 11, wherein, The broadcast channel is determined according to the synchronization signal, including at least one of: The broadcast channel is determined according to information carried by the second synchronization signal; The broadcast channel is scrambled according to information carried by the second synchronization signal; The broadcast channel is initialized for scrambling according to information carried by the second synchronization signal. The location of the broadcast channel is determined according to the synchronization signal; The beam of the broadcast channel is associated with the synchronization signal; The reference signal of the broadcast channel is determined according to the synchronization signal; The reference signal of the broadcast channel is determined according to the second synchronization signal; The reference signal of the broadcast channel is determined according to the third synchronization signal; The reference signal of the broadcast channel is determined according to the second synchronization signal and the third synchronization signal; The reference signal of the broadcast channel is determined according to the first synchronization signal, the second synchronization signal and the third synchronization signal; The reference signal of the broadcast channel is determined according to information carried by the synchronization signal; The reference signal of the broadcast channel is determined according to information carried by the second synchronization signal; The reference signal of the broadcast channel is determined according to the first information or the second information of the synchronization signal.

13. The method of any one of claims 1 to 12, wherein, The broadcast channel satisfies at least one of: The number of symbols or the number of slots of the broadcast channel in the time domain is at least one of the set {1, 2, 3, 4, 6, 8, 12, 14}; The number of resource blocks of the broadcast channel in the frequency domain is at least one of the set {6, 12, 16, 18, 24, 32, 48, 96}; The indication of the broadcast channel includes at least one of: cell type information, cell identification information, location information, bandwidth, system information block scheduling information, pattern of the synchronization signal, pattern of the second synchronization signal, pattern of the third synchronization signal.

14. The method of any one of claims 1 to 13, wherein, The location relationship of the broadcast channel with the first synchronization signal and the second synchronization signal in the synchronization signal satisfies at least one of: The broadcast channel, the first synchronization signal and the second synchronization signal are adjacent to each other; The broadcast channel, the first synchronization signal and the second synchronization signal have the same center frequency or reference frequency; The first synchronization signal is in front, the second synchronization signal is after the first synchronization signal, and the broadcast channel is after the second synchronization signal; The first synchronization signal and the second synchronization signal are adjacent in time domain, frequency domain coincides or overlaps, and the broadcast channel is adjacent to the synchronization signal; The first synchronization signal and the second synchronization signal are adjacent in time domain, frequency domain coincides or overlaps, and the broadcast channel is adjacent to the synchronization signal; The broadcast channel and the synchronization signal have the same time reference point, different offsets or different periods; The first synchronization signal and the second synchronization signal are adjacent, and the broadcast channel and the synchronization signal have different periods or offsets; The second synchronization signal and the broadcast channel are adjacent, and the first synchronization signal and the second synchronization signal have different time domain positions, offsets or periods; The first synchronization signal and the second synchronization signal are adjacent, and the broadcast channel and the first synchronization signal and / or the second synchronization signal have different offsets or periods; The broadcast channel and the second synchronization signal are adjacent, and the first synchronization signal and the broadcast channel and / or the second synchronization signal have different offsets or periods; The first synchronization signal and the second synchronization signal are adjacent in time domain, and the first synchronization signal and / or the second synchronization signal is adjacent to the broadcast channel in frequency domain; The first synchronization signal or the second synchronization signal is adjacent to the broadcast channel in frequency domain, and the second synchronization signal or the first synchronization signal is non-overlapping with the broadcast channel in time-frequency domain, or has different offsets or periods.

15. The method of claim 1 or 4, wherein, The position relationship of the broadcast channel and the first synchronization signal, the second synchronization signal and the third synchronization signal in the synchronization signal satisfies at least one of the following: The third synchronization signal is adjacent to the second synchronization signal and / or the broadcast channel; The third synchronization signal is adjacent to the second synchronization signal and / or the first synchronization signal; The third synchronization signal is adjacent to the broadcast channel; The first synchronization signal, the second synchronization signal, the third synchronization signal and the broadcast channel have the same reference frequency point.

16. The method of any one of claims 1 to 15, wherein, The broadcast channel and the synchronization signal relationship satisfies at least one of the following: In a period of time, the synchronization signal has N beams, the broadcast channel has M beams, and M=N; In a period of time, the synchronization signal has N beams, the broadcast channel has M beams, and M<N; In a period of time, the synchronization signal has N beams, the broadcast channel has M beams, and M>N.

17. The method of claim 16, wherein, In the period of time, the synchronization signal has N beams, the broadcast channel has M beams, and M<N, including: In K periods of time, a period of time contains N beams of the synchronization signal and M beams of the broadcast channel; Wherein, the M beams of the broadcast channel and the M beams of the synchronization signal in the N beams of the synchronization signal are associated, and the indexes of the M beams of the broadcast channel in different time periods are different.

18. The method of any one of claims 16-17, wherein, In the period of time, the synchronization signal has N beams, the broadcast channel has M beams, and M<N, including: The synchronization signals have N beams and are divided into M groups, and the beams of the synchronization signals in each group correspond to one beam of the broadcast channel.

19. The method of any one of claims 16-18, wherein, In the period of time, the synchronization signals have N beams, the broadcast channel has M beams, and M < N, including: M beams of the broadcast channel and M beams of the synchronization signals are associated; The remaining beams or N-M beams of the synchronization signals are divided into M groups, and the beams of the synchronization signals in each group are associated with one beam of the broadcast channel.

20. The method of any one of claims 16-19, wherein, In the period of time, the synchronization signals have N beams, the broadcast channel has M beams, and M > N, including: In K periods of time, a period of time includes N beams of the synchronization signals and M beams of the broadcast channel; Wherein, M beams of the broadcast channel and N beams of the synchronization signals are associated, and the indexes of the M beams of the broadcast channel in different periods of time are the same.

21. The method of any one of claims 16-20, wherein, In the period of time, the synchronization signals have N beams, the broadcast channel has M beams, and M > N, including: The broadcast channel has M beams and is divided into N groups, and one group of beams of the broadcast channel in each of the N groups corresponds to one beam of the synchronization signal.

22. The method of any one of claims 16 to 21, wherein, In the period of time, the synchronization signals have N beams, the broadcast channel has M beams, and M > N, including: N beams of the broadcast channel in M beams of the broadcast channel and N beams of the synchronization signals are associated; The remaining beams or M-N beams of the broadcast channel are divided into N groups, and the beams of the broadcast channel in each of the N groups are associated with the beams of the synchronization signal.

23. The method of any one of claims 16 to 22, wherein, The N beams of the synchronization signal correspond to or are associated with the M beams of the broadcast channel.

24. The method of any one of claims 16 to 23, wherein, The period of the broadcast channel and the period of the synchronization signal have an integer multiple relationship.

25. A signal receiving method, comprising: receiving an initial signal; wherein the initial signal includes at least one of the following: a synchronization signal, a broadcast channel, a first reference signal; the synchronization signal includes at least one of the following: a first synchronization signal, a second synchronization signal, a third synchronization signal.

26. The method of claim 25, wherein, The synchronization signal carries at least one of the following information: cell information, beam information, location information; Wherein, the location information is used to determine at least one of the following: the time domain position where the synchronization signal is located, the time-frequency domain position where the broadcast channel is located, whether to associate the broadcast channel; The cell information includes at least one of the following: cell identification information, cell index information, cell category information; The beam information includes at least one of the following: index information of the beam, quantity information of the beam, index information of the synchronization signal, quantity information of the synchronization signal.

27. The method of any one of claims 25-26, wherein, The relationship between the broadcast channel and the synchronization signal satisfies at least one of the following: In a period of time, the synchronization signals have N beams, the broadcast channel has M beams, and M = N; In a period of time, the synchronization signals have N beams, the broadcast channel has M beams, and M < N; In a period of time, the synchronization signals have N beams, the broadcast channel has M beams, and M > N.

28. A communications device comprising: Memory and processor; The memory and the processor are coupled; The memory is configured to store instructions executable by the processor; The processor executes the instructions to perform the method according to any one of claims 1-27.

29. A computer readable storage medium, wherein, The computer readable storage medium has stored thereon computer instructions that, when executed at a computer, cause the computer to perform the method according to any one of claims 1-27.

30. A computer program product, wherein, The computer program product comprises computer program instructions that, when executed, implement the method according to any one of claims 1-27.

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