Information transmission method and related equipment

Abstract

The invention provides an information transmission method and related equipment, which are used for improving transmission performance. The information transmission method is applied to a first device, and comprises: determining M first signals to be sent on a first time domain unit, M being an integer greater than or equal to 2; and sending first information to second equipment, wherein the first information is used for indicating whether the M first signals are the same or not.

Description

Technical Field

[0001] The present application relates to the field of communications, and in particular to an information transmission method and related equipment. Background Art

[0002] Wireless communication is the fastest growing and most widely used wireless communication technology in recent years. Wireless communication realized on the move is also generally called mobile communication, and people call the two together as wireless mobile communication.

[0003] In the transmission of unlicensed spectrum, channels and transmission resources are usually obtained through monitoring. When a channel is monitored to be idle, it can be sent on this channel (such as a 20MHz channel) for a specific period of time. But on a 20MHz channel, when the signal is sent, it must occupy 80% of the bandwidth of the signal. However, when defining synchronization and other signals, the bandwidth is often limited, such as 2MHz. In order to meet the channel occupancy requirements defined by regulations, these signals are often sent by frequency domain repetition on a 20MHz channel. When the same signal is sent on one or more channels in a frequency domain repetition manner, how to improve the transmission performance is an issue to be solved.

[0004] Similarly, in some communication scenarios, the same signal may be sent in a repeated manner on multiple code domains or spatial domains at the same time, and there is also a need to improve transmission performance. Summary of the invention

[0005] The present application provides an information transmission method and related equipment for improving transmission performance.

[0006] In existing communication systems, the transmitting device often maps the signal to be transmitted on one or more resources on the same time domain unit, and sends the mapped signal to the receiving device to improve the reliability of information transmission. However, this transmission method will bring a very high peak-to-average power ratio (PAPR) on the transmitter (i.e., the transmitting device) side, affecting the transmission efficiency of the transmitter. Therefore, the transmitter usually performs PAPR reduction processing on the multi-channel signals sent on the same time domain unit to reduce the power loss on the transmitter side and improve the power efficiency of the transmitter. However, in this method, the receiving device cannot determine whether the transmitter has performed PAPR reduction processing, and cannot determine how the transmitter performs PAPR reduction processing, and cannot determine whether the received signal can be combined, resulting in a low signal-to-noise ratio (SNR) and poor transmission performance. The information transmission method provided in the present application is used to solve this problem.

[0007] In a first aspect, the present application provides an information transmission method, which is applied to a first device, including:

[0008] The first device determines M first signals to be sent on the first time domain unit, where M≥2 and is an integer. That is, the first device sends multiple first signals to the second device on the first time slot unit. The first device also sends first information to the second device, and the first information is used to indicate whether the M first signals are the same. Among them, whether the M first signals are the same includes that the M first signals are the same, some of the M first signals are the same, or the M first signals are different. The M first signals are all the same, including that some or all of the information in the M first signals is the same, and this part or all of the information has not been scrambled.

[0009] In the present application, the first information sent by the first device to the second device indicates whether the M first signals are the same, and can also reflect whether the M first signals are scrambled signals, so that after obtaining the first information, the second device can determine whether to merge the M first signals according to the first information, thereby obtaining the maximum SNR and further improving the transmission performance.

[0010] In some optional implementations of the first aspect, part or all of the information of at least two of the M first signals is the same. It can be understood that the presence of the same information in different first signals is a prerequisite for scrambling the different signals. Because only when the same information exists in different first signals, the high PAPR caused by the same information can be further reduced after scrambling, thereby obtaining a gain in transmission performance.

[0011] In some optional implementations of the first aspect, when the M first signals are different, N first signals among the M first signals are obtained by scrambling all or part of the information carried by each of the N first signals, and 1≤N≤M. That is, if the M first signals are different, some or all of the M first signals are obtained by scrambling some or all of the information carried in these some or all of the first signals.

[0012] In the present application, by scrambling all or part of the information, the PAPR of the M first signals is reduced, thereby reducing the power loss of the first device sending the M first signals and improving the transmission performance.

[0013] In some optional implementations of the first aspect, when the M first signals are different, the first information is further used to indicate a manner in which the first device performs scrambling processing on the M first signals.

[0014] In the present application, the first information can not only indicate whether the M first signals are the same, but also indicate the method of scrambling the M first signals, which enriches the role of the first information and the application scenarios of the technical solution of the present application. In addition, in the scheme where the first information indicates the method of scrambling the M first signals, after obtaining the first information, the second device can also determine the corresponding descrambling and merging methods according to the scrambling method, making the operation of the second device more convenient and reducing the processing delay.

[0015] In some optional implementations of the first aspect, the first information is indicated by a first sequence and / or a second sequence. That is, the first information may be indicated by a first sequence, or by a second sequence, or by a first sequence and a second sequence. The first sequence is used to generate a sequence of a first part in the first signal, and the second sequence is used to generate a sequence of a second part in the first signal.

[0016] In the present application, indicating the first information through the first sequence and / or the second sequence can provide a variety of different first information indication methods, thereby improving the accuracy of first information demodulation.

[0017] In some optional implementations of the first aspect, the first signal is a first reference signal, and the first sequence is used to generate the first reference signal; and / or the first signal is a physical channel, the second sequence generates a second reference signal, and the second reference signal is part of the physical channel or carried on the physical channel.

[0018] In some optional implementations of the first aspect, sending the first information to the second device includes: sending the first information to the second device by carrying the first modulation symbol via the first reference signal and / or the second reference signal, the first modulation symbol being generated according to the first information. That is, the first information may be sent to the second device by carrying the first modulation symbol via the first reference signal, or by carrying the first modulation symbol via the second reference signal, or by carrying the first modulation symbol via the first reference signal and the second reference signal.

[0019] In the present application, the first information can be indicated based on the modulation method, which has no effect on the sent reference signal. The receiver (ie, the second device receiving the first signal) can detect the modulation symbol through channel estimation, thereby reducing the detection complexity of the receiver.

[0020] In some optional implementations of the first aspect, the type of the first sequence or the type of the second sequence includes a low zero correlation zone sequence or a random sequence.

[0021] In the present application, both the type of the first sequence and the type of the second sequence have multiple possibilities, which enriches the implementation method of the technical solution of the present application, can be flexibly applied to different scenarios, and further enhances the practicality of the technical solution of the present application.

[0022] In some optional implementations of the first aspect, indicating the first information through the first sequence and / or the second sequence includes: indicating the first information through a cyclic shift value and / or a root sequence value of a low zero correlation zone sequence, and / or an initial value of a random sequence. Exemplarily, taking indicating the first information through the first sequence as an example, when the type of the first sequence is a low zero correlation zone sequence, the first information may be indicated through a cyclic shift value and / or a root sequence value of the low zero correlation zone sequence; when the type of the first sequence is a random sequence, the first information may be indicated through an initial value of the random sequence.

[0023] In the present application, the first information is indicated by a cyclic shift value and / or a root sequence value, and / or an initial value of a random sequence, which can not only reduce the complexity of the sequence blind detection of the second device (i.e., the device receiving the first information), thereby reducing the processing delay of the second device for the first information and / or the M first signals, and improving efficiency. In addition, since there are multiple possible ways to indicate the first information, the implementation methods and application scenarios of the technical solution of the present application are further enriched, and the practicality and flexibility of the technical solution are improved.

[0024] In some optional implementations of the first aspect, the root sequence number is determined according to a value of the first information.

[0025] In some optional implementations of the first aspect, the initial value of the random sequence is determined based on at least one of the following parameters and the first information: a sequence identifier, an identifier of a first time domain unit, an identifier of a second time domain unit where the first time domain unit is located, or an index of M first signals on the first time domain unit; wherein the first time domain unit is located in the second time domain unit.

[0026] In some optional implementations of the first aspect, the initial value c of the random sequence is init satisfy:

[0027]

[0028] Among them, a0, a1, k0, k1 are integers, and i is the value of the first information.

[0029] In the present application, there are multiple possible situations for the initial value of the random sequence, which can enrich the application scenarios of the technical solution of the present application and further enhance the practicality of the technical solution of the present application.

[0030] In some optional implementations of the first aspect, at least two first signals among the M first signals are repeated on first resources, and the first resources include at least one of frequency domain resources, code domain resources, or spatial domain resources.

[0031] In the present application, at least two of the M first signals can be sent using different resources in the first time slot unit. The greater the number of the at least two first signals, the greater the degree of reduction in PAPR of the M first signals after scrambling processing, the greater the effective transmission power of the first device, and the further improved transmission performance.

[0032] In some optional implementations of the first aspect, the first device may also obtain configuration information indicated by the third device, the configuration information indicating the first information to the first device; and / or, indicate the first information to the second device through a control channel included in the first signal.

[0033] In some optional implementations of the first aspect, the first information further indicates that part or all of information of Q first signals among the M first signals is the same, where Q is a positive integer not greater than M.

[0034] In a second aspect, the present application provides an information transmission device, and the method is applied to a second device, including:

[0035] Receive first information sent from a first device, the first information is used to indicate whether M first signals are the same, the M first signals are sent by the first device on a first time slot unit, M≥2, and is an integer. Among them, whether the M first signals are the same includes that the M first signals are all the same, or some of the M first signals are the same, or the M first signals are different. According to the first information, determine whether to merge the M first signals.

[0036] In the present application, the first information sent by the first device to the second device indicates whether the M first signals are the same, and can also reflect whether the M first signals are scrambled signals, so that after obtaining the first information, the second device can determine whether to merge the M first signals according to the first information, thereby obtaining the maximum SNR and further improving the transmission performance.

[0037] In some optional implementations of the second aspect, part or all of information of at least two of the M first signals is the same. The second device determines, based on the first information, whether to merge the M first signals, including: determining, based on the first information, whether to merge the at least two of the M first signals.

[0038] It can be understood that the existence of the same information in different first signals is a prerequisite for the second device receiving the first signal to merge the first signals. In other words, part or all of the information of at least two of the M first signals is the same. The second device can directly merge these identical first signals without performing any de-scrambling processing, thereby obtaining a gain in the signal-to-noise ratio of the combined reception and improving the receiving performance.

[0039] In some optional implementations of the second aspect, when the M first signals are different, N first signals among the M first signals are obtained by scrambling all or part of the information carried by each of the N first signals, and 1≤N≤M. That is, if the M first signals are different, some or all of the M first signals are obtained by scrambling some or all of the information carried in these some or all of the first signals.

[0040] In the present application, by scrambling all or part of the information, the PAPR of the M first signals is reduced, thereby reducing the power loss of the first device sending the M first signals and improving the transmission performance.

[0041] In some optional implementations of the second aspect, determining whether to merge the M first signals is performed based on the first information, including: if the first information indicates that the M first signals are all the same, merging the M first signals.

[0042] In the present application, when the first information indicates that the M first signals are the same, it means that part or all of the information carried by each of the M first signals is the same, and the information has not been scrambled. At this time, the second device can directly merge the M first signals to obtain the maximum SNR and improve the transmission performance.

[0043] In some optional implementations of the second aspect, if the M first signals are different, the first information is also used to indicate a manner in which the first device performs scrambling processing on the M first signals. Then, the second device may determine a descrambling manner for combining the M first signals according to the scrambling processing manner indicated by the first information. Then, the M first signals are combined according to the descrambling manner for combining the M first signals.

[0044] In the present application, the first information can not only indicate whether the M first signals are the same, but also indicate the way to scramble the M first signals, which enriches the role of the first information and the application scenarios of the technical solution of the present application. In addition, in the scheme where the first information indicates the way to scramble the M first signals, after obtaining the first information, the second device can also determine the corresponding descrambling method according to the scrambling method, so that the second device can perform the corresponding descrambling correctly, thereby correctly demodulating the corresponding information.

[0045] In some optional implementations of the second aspect, the first information is indicated by a first sequence and / or a second sequence, the first sequence is used to generate a sequence of a first part in the first signal, and the second sequence is used to generate a sequence of a second part in the first signal.

[0046] In the present application, indicating the first information through the first sequence and / or the second sequence can provide a variety of different first information indication methods, thereby improving the accuracy of first information demodulation.

[0047] In some optional implementations of the second aspect, the type of the first sequence or the type of the second sequence includes: a low zero correlation zone sequence or a random sequence.

[0048] In the present application, both the type of the first sequence and the type of the second sequence have multiple possibilities, which enriches the implementation method of the technical solution of the present application, can be flexibly applied to different scenarios, and further enhances the practicality of the technical solution of the present application.

[0049] In some optional implementations of the second aspect, the first information is indicated by a first sequence and / or a second sequence, including: indicating the first information by a cyclic shift value and / or a root sequence value of a low zero correlation zone sequence, and / or an initial value of a random sequence.

[0050] In the present application, the first information is indicated by a cyclic shift value and / or a root sequence value, and / or an initial value of a random sequence, which can not only reduce the complexity of the sequence blind detection of the second device (i.e., the device receiving the first information), thereby reducing the processing delay of the second device for the first information and / or the M first signals, and improving efficiency. In addition, since there are multiple possible ways to indicate the first information, the implementation methods and application scenarios of the technical solution of the present application are further enriched, and the practicality and flexibility of the technical solution are improved.

[0051] In some optional implementations of the second aspect, the root sequence value is determined according to a value of the first information.

[0052] In some optional implementations of the second aspect, the initial value of the random sequence is determined based on at least one of the following parameters and the first information: a sequence identifier, an identifier of a first time domain unit, an identifier of a second time domain unit where the first time domain unit is located, or an index of M first signals on the first time domain unit; wherein the first time domain unit is located in the second time domain unit.

[0053] In some optional implementations of the second aspect, the initial value c of the random sequence is init satisfy:

[0054]

[0055] Among them, a0, a1, k0, k1 are integers, and i is the value of the first information.

[0056] In the present application, there are multiple possible situations for the initial value of the random sequence, which can enrich the application scenarios of the technical solution of the present application and further enhance the practicality of the technical solution of the present application.

[0057] In some optional implementations of the second aspect, at least two first signals among the M first signals are repeated on first resources, and the first resources include at least one of frequency domain resources, code domain resources, or spatial domain resources.

[0058] In the present application, at least two of the M first signals can be sent using different resources in the first time slot unit. The more resources these at least two first signals use, the greater the reduction in PAPR of the first signal after scrambling processing, the greater the effective transmission power of the first device, and the further improved transmission performance.

[0059] In some optional implementations of the second aspect, the first information is indicated by a control channel included in the first signal.

[0060] In some optional implementations of the second aspect, the first information further indicates that part or all of information of Q first signals among the M first signals is the same, where Q is a positive integer not greater than M.

[0061] In the third aspect, the present application provides a communication device, which includes a module for implementing the method shown in the aforementioned first aspect, the second aspect, any possible implementation of the first aspect, or any possible implementation of the second aspect, and its beneficial effects are as described above and will not be repeated here.

[0062] In a fourth aspect, the present application provides a communication device, including a processor coupled to a memory. Instructions are stored in the memory, and when the instructions are executed on the processor, the communication device implements the method shown in the aforementioned first aspect, second aspect, any possible implementation of the first aspect, or any possible implementation of the second aspect. The communication device can be a physical device, a module of a physical device (such as a chip, etc.), or a logical node, a logical module, or software that can implement all or part of the functions of a terminal device.

[0063] In a fifth aspect, the present application provides a computer-readable storage medium, which stores instructions. When the instructions are executed on a processor, the method shown in the aforementioned first aspect, second aspect, any possible implementation of the first aspect, or any possible implementation of the second aspect is implemented.

[0064] In a sixth aspect, the present application provides a computer program product, which, when executed on a computer, enables the method shown in the aforementioned first aspect, second aspect, any possible implementation of the first aspect, or any possible implementation of the second aspect to be implemented.

[0065] The beneficial effects shown in any one of the fourth to sixth aspects are similar to those of the aforementioned first aspect, any possible implementation method of the first aspect, the second aspect, or any possible implementation method of the second aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] Figure 1 A schematic diagram of the system architecture provided for an embodiment of the present application;

[0067] Figure 2 A schematic diagram of a flow chart of an information transmission method provided in an embodiment of the present application;

[0068] Figure 3 A schematic diagram of a first signal provided in an embodiment of the present application;

[0069] Figure 4 Another schematic diagram of a first signal provided in an embodiment of the present application;

[0070] Figure 5 A schematic diagram of the structure of a communication device provided in an embodiment of the present application;

[0071] Figure 6 Another structural diagram of a communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0072] The embodiments of the present application provide an information transmission method and related devices for improving transmission performance.

[0073] The embodiments of the present application are described below in conjunction with the accompanying drawings. Those skilled in the art will appreciate that, with the development of technology and the emergence of new scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0074] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged in appropriate circumstances, which is only to describe the distinction mode adopted by the objects of the same attribute in the embodiments of the present application when describing. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, so that the process, method, system, product or equipment containing a series of units need not be limited to those units, but may include other units that are not clearly listed or inherent to these processes, methods, products or equipment. In addition, "at least one" refers to one or more, and "multiple" refers to two or more. "And / or", describes the association relationship of associated objects, indicating that three relationships can exist, for example, A and / or B, can represent: A exists alone, A and B exist simultaneously, and B exists alone, wherein A, B can be singular or plural. The character " / " generally represents that the associated objects before and after are a kind of "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or plural.

[0075] First, to facilitate understanding of the embodiments of the present application, a brief introduction is given to the proper nouns and related terms involved in the present application.

[0076] 1. Licensed spectrum and unlicensed spectrum.

[0077] The spectrum used by wireless communication systems is divided into two categories: licensed spectrum and unlicensed spectrum. In the licensed spectrum, user equipment (UE) can use spectrum resources based on the scheduling of network equipment. In the unlicensed spectrum, communication devices can use spectrum resources in a competitive manner. Sidelink (SL) communication on the unlicensed spectrum can be called SL-U, and new radio (NR) cellular communication on the unlicensed spectrum can be called NR-U.

[0078] In one possible way, communication devices (including network devices or terminal devices) compete for channels through a listen-before-talk (LBT) method, and then use unlicensed spectrum resources. LBT is a channel access rule based on random back-off. Before accessing the channel and starting to send data, the UE first senses whether the channel is idle. If the channel has been idle for a certain period of time, it can occupy the channel. If the channel is not idle, it needs to wait for the channel to return to idle before occupying the channel.

[0079] 2. Time domain unit and frequency domain unit.

[0080] Data or information can be carried through time and frequency resources.

[0081] In the time domain, the time-frequency resources may include one or more time domain units (or, may also be referred to as time units). A time domain unit may be a symbol, or a mini-slot, or a slot, or a partial slot, or a subframe, or a radio frame, and so on.

[0082] In the frequency domain, the time-frequency resources may include one or more frequency domain units. A frequency domain unit may be a resource element (RE), or a resource block (RB), or a subchannel, or a resource pool, or a bandwidth, or a resource block set (RB set), or a bandwidth part (BWP), or a carrier, or a channel, or an interlace RB, etc. Optionally, an RB set may be the bandwidth included in a 20MHz channel.

[0083] 3. Sequence.

[0084] In the present application, the sequence may be a random sequence, or a low correlation or zero correlation sequence (which may be referred to as a low zero correlation zone sequence for short), and the low zero correlation zone sequence may also be referred to as a low peak-to-average ratio sequence. Optionally, the random sequence may be an m sequence, or a Gold sequence, etc., and the present application does not impose any restrictions on this. The low peak-to-average ratio sequence may be a binomial sequence, or a 4-phase sequence, or a ZC sequence. These sequences have the advantage of having a good peak-to-average ratio and low correlation performance. Optionally, the ZC sequence refers to a Zadoff–Chu sequence, or a zero-correlation sequence.

[0085] Optionally, the low zero correlation zone sequence may be a sequence defined in Section 5.2.2 of 3GPP NR protocol 38.211, or a sequence of other low or zero correlation zone sequences, or other sequences with low PAPR characteristics, which is not limited in this application.

[0086] Optionally, the random sequence may be a small m sequence, a Gold sequence, or a random sequence defined in Section 5.2 of 3GPP NR protocol 38.211, or other randomly generated sequences, which is not limited in this application.

[0087] Exemplarily, in this application, an example of a 31-bit Gold sequence is as follows:

[0088] For example, for a 31-bit shift register, the length of the output random sequence c(n) is M PN , where n = 0, 1, ..., M PN -1; The random sequence c(n) can be generated in the following way, or the random sequence c(n) satisfies:

[0089] c(n)=(x1(n+N C )+x2(n+N c ))mod2

[0090] x1(n+31)=(x1(n+3)+x1(n))mod2

[0091] x2(n+31)=(x2(n+3)+x2(n+2)+x2(n+1)+x2(n))mod2

[0092] Where NC = 1600, the initial value of the first m-sequence x1(n) can be: x1(0) = 1, x1(n) = 0, n = 1, 2, ..., 30. The initial value of the second m-sequence x2(n) is:

[0093] Wherein, mod is a modulo operation, and mod2 represents the remainder of a logarithm divided by 2. According to the determined initial value cinit of the first sequence c(n), the first sequence c(n) can be determined.

[0094] The ZC sequence, also known as Zadoff–Chu, Frank–Zadoff–Chu (FZC) sequence or Chu sequence, is a perfect sequence. This sequence has an ideal periodic autocorrelation characteristic. The main parameters for generating the ZC sequence are one or more of the root sequence number of the sequence, the cyclic shift value and the orthogonal cover code. The sequence used in the present invention may be a pseudo-random sequence, a ZC sequence, or other low peak ratio sequences (such as a positive integer with a length not less than 6 as defined in the LTE or NR Rel-15 protocol).

[0095] Alternatively, the ZC sequence can be defined by the following formula:

[0096]

[0097] in, is the reference signal sequence, α is the cyclic shift value of the sequence, and u and v are the parameters for generating the base sequence. It can be generated as follows:

[0098]

[0099]

[0100] in,

[0101] 4. Reference signal: a physical signal that carries a sequence and is sent to achieve a specific function.

[0102] In the present invention, reference signals (RS) such as sidelink-physical reference signals (SL-PRS) are involved. RS is a physical signal generated by mapping a specific sequence to a corresponding time-frequency resource in a pre-transmitted resource mapping manner.

[0103] There are different types of reference signals according to different functions. When the reference signal is used to send feedback information, it can be a demodulation reference signal used to carry feedback information, or it can be a sequence used to directly carry feedback information. It mainly refers to the reference signal for transmitting feedback information for data. The device sending the reference signal can be the first device sending feedback information, the second device sending first data, or a device for measuring or providing a synchronization source.

[0104] Reference signals have the following uses: for data demodulation, information carrying, channel state information (CSI), radio resource management (RRM) or radio link monitoring (RLM) measurement, synchronization, phase noise tracking, etc. When the reference signal carries feedback information, it can be carried by a sequence or by the control information coding bits in the feedback channel. Specifically, the reference signal can be a demodulation reference signal (DMRS) used by the physical sidelink shared channel (PSSCH) or a physical sidelink control channel (PSCCH); when the reference channel performs CSI, RRM or RLM measurement, the reference signal can be RS, or a channel sounding reference signal (SRS), or CSI-RS, etc.; when the reference signal performs synchronization, the reference signal can be a reference signal used by the physical sidelink broadcast channel (PSBCH), etc.

[0105] 5. Code resources, also known as sequence resources, correspond to sequences generated according to sequence parameters.

[0106] For a random sequence, the sequence parameters include the starting position of the sequence, the length of the sequence, and the initial value of the sequence. For a low mean square ratio sequence (such as a ZC sequence), the sequence parameters include a root sequence, a cyclic shift (CS) or an orthogonal cover code (OCC), etc.

[0107] The initial value of a sequence refers to the initial value of a shift register that generates a random sequence (such as a Gold sequence or an m sequence).

[0108] Next, a communication system that uses the information transmission method provided in an embodiment of the present application is described.

[0109] The technical solution provided in this application can be applied to various communication systems, such as: fifth generation (5th generation, 5G) or new radio (new radio, NR) system, long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD) system, etc. The technical solution provided in this application can also be applied to future communication systems, such as the sixth generation (6th generation, 6G) mobile communication system. The technical solution provided in this application can also be applied to device to device (device to device, D2D) communication, vehicle to everything (vehicle-to-everything, V2X) communication, machine to machine (machine to machine, M2M) communication, machine type communication (machine type communication, MTC), and Internet of things (Internet of things, IoT) communication system or other communication systems.

[0110] As an example, V2X communication may include: vehicle-to-vehicle (V2V) communication, vehicle-to-roadside infrastructure (V2I) communication, vehicle-to-pedestrian (V2P) communication, and vehicle-to-network (V2N) communication. V2V refers to communication between vehicles. V2P refers to communication between vehicles and people (including pedestrians, cyclists, drivers, or passengers, etc.). V2I refers to communication between vehicles and infrastructure, such as road side units (RSU) or network equipment. Among them, RSU includes two types: terminal-type RSU, which is in a non-mobile state because it is located on the roadside and does not need to consider mobility; base station-type RSU, which can provide timing synchronization and resource scheduling to vehicles communicating with it. V2N refers to communication between vehicles and network equipment. It can be understood that the above is an exemplary description and the embodiments of the present application are not limiting. For example, V2X may also include V2X communications based on the NR system of the current 3GPP Rel-16 and subsequent versions.

[0111] The terminal device in the embodiment of the present application may also be referred to as UE, access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device.

[0112] The terminal device may be a device that provides voice / data to users, for example, a handheld device or a vehicle-mounted device with a wireless connection function. At present, some examples of terminals are: mobile phones, tablet computers, laptop computers, PDAs, mobile internet devices (MID), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, wearable devices, terminal devices in 5G networks or future evolved public land mobile communication networks (public land mobile The embodiments of the present application do not limit this.

[0113] As an example but not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable devices may also be referred to as wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also powerful functions achieved through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include full-featured, large-sized, and fully or partially independent of smartphones, such as smart watches or smart glasses, as well as devices that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various types of smart bracelets and smart jewelry for vital sign monitoring.

[0114] In the embodiment of the present application, the device for realizing the function of the terminal device, i.e., the terminal device, can be a terminal device, or a device capable of supporting the terminal device to realize the function, such as a chip system or a chip, which can be installed in the terminal device. In the embodiment of the present application, the chip system can be composed of a chip, or it can include a chip and other discrete devices. In addition, the method performed by the terminal device can also be implemented by a logical node, a logical module or software that can realize all or part of the terminal device functions.

[0115] The network device in the embodiment of the present application may be a device for communicating with a terminal device, and the network device may also be referred to as an access network device or a wireless access network device, such as a base station. The network device in the embodiment of the present application may refer to a wireless access network (RAN) node (or device) that connects a terminal device to a wireless network. A base station may broadly cover various names as follows, or be replaced with the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point, transmission point (TRP), transmission point (TP), master station, auxiliary station, multi-standard wireless (motor slide retainer, MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. A base station may be a macro base station, a micro base station, a relay node, a donor node, or the like, or a combination thereof. The base station may also refer to a communication module, modem or chip used to be set in the aforementioned equipment or device. The base station may also be a mobile switching center and a device that performs the base station function in D2D, V2X, and M2M communications, a network-side device in a 6G network, and a device that performs the base station function in a future communication system. The base station may support networks with the same or different access technologies. The embodiments of the present application do not limit the specific technology and specific device form used by the network equipment.

[0116] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move based on the location of the mobile base station. In other examples, a helicopter or drone can be configured to act as a device that communicates with another base station.

[0117] In some deployments, the network device mentioned in the embodiments of the present application may be a device including a CU, or a DU, or a device including a CU and a DU, or a control plane CU node (central unit control plane (central unit-control plane, CU-CP)) and a user plane CU node (central unit user plane (central unit-user plane, CU-UP)) and a DU node.

[0118] In the embodiment of the present application, the device for realizing the function of the network device can be a network device, or a device that can support the network device to realize the function, such as a chip system or a chip, which can be installed in the network device. In the embodiment of the present application, the chip system can be composed of a chip, or it can include a chip and other discrete devices. In addition, the method performed by the network device can also be implemented by a logical node, a logical module or software that can realize all or part of the network device function.

[0119] The network equipment and terminal equipment can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on the water surface; they can also be deployed on aircraft, balloons and satellites in the air. The embodiments of the present application do not limit the scenarios in which the network equipment and terminal equipment are located.

[0120] It should also be noted that in the present application, "sending information to... (for example, a second device)" can be understood as the destination of the information being the second device. It can include sending information to the second device directly or indirectly. "Receiving information from... (for example, a first device)" can be understood as the source of the information being the first device, and can include receiving information from the first device directly or indirectly. The information may be processed as necessary between the source and destination of the information, such as format changes, but the destination can understand the valid information from the source. Similar expressions in the present application can be understood similarly and will not be repeated here.

[0121] See also Figure 1 , Figure 1 This is a schematic diagram of the system architecture provided in the embodiment of the present application. It can be understood that: Figure 1 Shown is one possible, non-limiting system schematic.

[0122] The network device and the terminal device can communicate with each other. For example, the network device and the terminal device can communicate with each other through the Uu interface, and the link between the network device and the terminal device can be recorded as the Uu link. Figure 1 As shown in Figure (a), the network device and the terminal device can communicate directly. In practical applications, the terminal device and the network device can also communicate indirectly, for example, through other terminal devices, which is not limited here. It can be understood that the Uu link represents a connection relationship between the terminal device and the network device, which is a logical concept rather than a physical entity. The main link is only named for distinction, and its specific naming does not limit the scope of protection of this application.

[0123] Terminal devices can also communicate with each other. For example, terminal devices can communicate directly with each other, such as Figure 1 The terminal device 1 and the terminal device 2 shown in (b) of the figure can communicate directly. For another example, in actual applications, the terminal devices can communicate with each other through other devices, such as through network devices or other terminal devices, which are not limited here. The interface for communication between terminal devices can be recorded as a proximity-based services communication 5 (PC5) interface, the multi-link communication between terminal devices can be recorded as a side link, and the communication between terminal devices can also be recorded as SL communication. The side link can also be called an edge link or a side link. It can be understood that the side link represents a connection relationship between terminal devices and terminal devices, which is a logical concept rather than a physical entity. The side link is only a name for distinction, and its specific name does not limit the scope of protection of this application.

[0124] Unicast communication can be performed between devices, such as between terminal devices. Unicast means that a sending terminal and a receiving terminal form a unicast connection pair. Figure 1 Taking Figure (b) in FIG. 1 as an example, unicast communication can be performed between terminal device 1 and terminal device 2.

[0125] Multicast communication can be performed between devices, such as between terminal devices. Multicast means that a sending terminal and at least one receiving terminal form a multicast connection pair. Figure 1 Taking (b) in FIG. 1 as an example, terminal device 1 and terminal device 2 can perform multicast communication. In practical applications, a terminal device can also perform multicast communication with multiple terminal devices, which is not limited here. When a terminal device can also perform multicast communication with multiple terminal devices, it can be performed under network coverage or without network coverage, which is not limited here.

[0126] Broadcast communication can be performed between devices, such as between terminal devices. Broadcasting means that a transmitting terminal communicates with at least one receiving terminal of an unlimited number. Optionally, during broadcasting, there is usually no direct signaling connection between the transmitting terminal and the receiving terminal. Therefore, the transmitter cannot know which terminal or terminals are receiving the message it sends. Figure 1 Taking (b) in FIG. 1 as an example, broadcast communication can be performed between terminal device 1 and terminal device 2. In practical applications, a terminal device can also perform broadcast communication with multiple terminal devices, which is not limited here. When a terminal device can also perform broadcast communication with multiple terminal devices, it can be performed under network coverage or without network coverage, which is not limited here.

[0127] As an example, SL communication between terminal devices can be used in vehicle networking or intelligent transportation system (ITS), such as V2X communication described above.

[0128] Optionally, SL communication between terminal devices may be performed under network coverage or without network coverage.

[0129] Optionally, the configuration information during SL communication between terminal devices, such as the time and frequency resources during SL communication between terminal devices, may be configured or scheduled by the network device, or may be independently selected by the terminal device without restriction.

[0130] Understandably, Figure 1 This is a simplified schematic diagram for ease of understanding only. The wireless communication system may also include other network devices or other terminal devices. Figure 1 The embodiments of the present application can be applied to any communication scenario in which a transmitting device and a receiving device communicate with each other.

[0131] In addition, it should be noted that the following description is based on the first device and the second device as the execution subject. The first device can be a terminal device, and the corresponding second device is a network device. The first device can also be a network device, and the corresponding second device is a terminal device. In addition, both the first device and the second device can be terminal devices, that is, the information transmission method provided in the embodiment of the present application can be applied not only to communication scenarios of different terminal devices, but also to communication scenarios of terminal devices and network devices, which are not specifically limited here.

[0132] See below. Figure 2 , Figure 2The flowchart of the information transmission method provided in the embodiment of the present application includes the following steps:

[0133] 201. A first device determines M first signals to be sent on a first time domain unit, where M≥2 and is an integer.

[0134] In the embodiment of the present application, there are many possible situations for the first signal: the first signal can be a reference signal, a control channel carrying control information to be sent, or a data channel carrying a data packet to be sent, which can be flexibly applied to different scenarios and is not specifically limited here. The following further describes the possible situations:

[0135] In some optional embodiments, the first signal may be a reference signal, including a synchronization signal, a DMRS, or a channel state reference signal, etc. In addition, it may also be other types of reference signals, for example, a beam management reference signal (beam measurement reference signal, BM-RS), a phase tracking reference signal (phase-tracking reference signal, PT-RS), etc., which are not specifically limited here.

[0136] Exemplarily, the synchronization signal includes: a downlink synchronization signal (e.g., a synchronization signal block (SSB)), an uplink synchronization signal (e.g., a physical random access channel (PRACH)), or a sidelink synchronization signal (e.g., a sidelink synchronization signal block (S-SSB)).

[0137] Exemplarily, the channel state reference signal includes: a channel state information reference signal (CSI-RS), a channel sounding reference signal (SRS), or a tracking reference signal (TRS), etc.

[0138] In some optional embodiments, the first signal may be a control channel, including: an uplink control channel (e.g., a physical uplink control channel (physical uplink control channel, PUCCH)), a downlink control channel (e.g., a physical downlink shared channel (physical downlink shared channel, PDSCH)), or a sidelink control channel (e.g., a physical sidelink control channel (physical sidelink control channel, PSCCH)).

[0139] In some optional embodiments, the first signal may be a data channel, including: an uplink data channel (e.g., a physical uplink shared channel (PUSCH)), a downlink data channel (e.g., a physical downlink shared channel (PDSCH)), or a sidelink data channel (e.g., a physical sidelink shared channel (PSSCH)).

[0140] Based on the foregoing examples, it can be seen that in the embodiments of the present application, there are multiple possible types of the first signal, which enriches the implementation methods and application scenarios of the technical solutions of the present application.

[0141] In some optional implementations, among the M first signals, part or all of the information of at least two first signals is the same. Optionally, the information of the first signal can be understood as one or more of the following:

[0142] If the first signal includes a reference signal, the information is the reference signal; if the first signal includes a control channel, the information is the control channel generated after the control signaling carried in the control channel is modulated and mapped to the control channel sub-resource; if the first signal includes a data channel, the information is the data channel generated after the data bits carried in the data channel are modulated and mapped to the data channel sub-resource.

[0143] It can be understood that the existence of the same information in different first signals is a prerequisite for scrambling the different signals. In other words, the partial or full information of at least two of the M first signals is the same, which is a prerequisite for reducing PAPR in the information transmission method provided in the embodiment of the present application. Because only when the same information exists in different first signals, the high PAPR caused by the same information can be further reduced after scrambling, thereby obtaining a gain in transmission performance.

[0144] In addition, it should be noted that the M first signals to be sent on the first time domain unit are intended to indicate that the first device sends the M first signals on the first time slot unit, which means that the time domain resources corresponding to the M first signals are the same.

[0145] In some optional implementations, at least two of the M first signals may be repeated on multiple first resources in the first time domain unit in addition to corresponding to the same time domain resource. The first resource mentioned here includes at least one of a frequency domain resource, a code domain resource, or a spatial domain resource. The repetition mentioned here means that part or all of the data, signal or information carried by at least two first signals is the same. In other words, at least two of the M first signals are sent on different first resources on the first time slot unit.

[0146] Optionally, in the present application, the at least two signals may belong to the same resource set or to different resource sets. Each resource set includes multiple resources. The first device may use the resources included in the resource set to send a first signal. Assuming that the first resource set corresponds to n resources and the resource set corresponds to n signals, the first device may use a resource of the resource set on the first time slot unit to send one of the n signals. Thereby, n signals are sent respectively using n resources on the first time slot unit. Where n is a positive integer.

[0147] The following takes the first signal S-SSB as an example and explains it with the help of the schematic diagram. Figure 3 and Figure 4 , Figure 3 and Figure 4 A schematic diagram of a first signal provided in an embodiment of the present application.

[0148] like Figure 3 As shown in the figure, there are 4 sets of frequency domain resources, namely the 4 RB sets (RB set-0 to RB set-3) in the example in the figure. There are n S-SSB signals on each RB set. Figure 3 In the illustrated embodiment, 4n first signals may be sent in total on 4 RBsets in slot 1. The 4n first signals may be all the same, partially the same, or different from each other.

[0149] Exemplarily, it is taken that among the 4n signals, n first signals are the same (that is, part or all of the information of the n signals is the same) as an example for description.

[0150] In one example, the n identical signals are located in the same RB set, such as Figure 3S-SSB 1 to S-SSB n in RB set-0 shown are the same n signals.

[0151] In one example, the n identical signals are located in multiple RB sets. The multiple RB sets include Figure 3 Some or all of the RB sets shown. For example, among the n signals, 1 / 3 of the signals are located in RB set-0, 1 / 3 of the signals are located in RB set-1, 1 / 6 of the signals are located in RB set-2, and 1 / 6 of the signals are located in RB set-3. For another example, among the n signals, 1 / 2 of the signals are located in RB set-0, 1 / 4 of the signals are located in RB set-1, and 3 / 4 of the signals are located in RB set-2.

[0152] In addition, for the same signal on the same RB set, the symbols included in each signal may be partially the same. For example, S-SSB 0 and S-SSB 1 in RB set-0 are the same signal, and the symbols included in S-SSB 0 and S-SSB 1 may be different. In one example, Figure 4 An example structure of an S-SSB signal is shown. Exemplarily, the S-PSS symbol of SSB 0 may be different from the S-PSS symbol of SSB 1, and the signals, channels or information carried on other symbols may be the same. Or, exemplarily, the S-PSS symbol of SSB 0 may be different from the S-PSS symbol of SSB 1, and the S-SSS symbol of SSB 0 may be different from the S-SSS symbol of SSB 1, and the signals, channels or information carried on the PSBCH symbols may be the same.

[0153] It is understandable that the above text takes the example that 4n signals include n identical signals, and does not limit the number of identical signals in actual applications. Figure 3 In the illustrated embodiment, optionally, in one example, the S-SSB signals on all RB sets are the same. In another example, only n S-SSBs on one RB set are the same, and the S-SSB signals on other RB sets are different from the S-SSB signals on this RB set. In another example, all S-SSBs on at least two RB sets are the same.

[0154] In addition, it should be noted that Figure 3 and Figure 4 The illustrated embodiment takes frequency domain resources as an example. In practical applications, resources may also be any one of code domain resources or spatial domain resources. Correspondingly, the resource set may also be a resource set corresponding to any one of code domain resources or spatial domain resources, which is not specifically limited here.

[0155] In the present application, Q first signals among the M first signals may be sent using different resources in the first time slot unit, and Q is a positive integer not greater than M. The larger the value of Q, the greater the degree of reduction in PAPR of the M first signals after scrambling processing, the greater the effective transmission power of the first device, and the transmission performance is further improved.

[0156] 202. The first device sends first information to the second device for indicating whether the M first signals are the same.

[0157] The first device also sends first information to the second device, where the first information is used to indicate whether the M first signals are the same. Whether the M first signals are the same includes multiple situations: the M first signals may be the same, the M first signals may be different, or the M first signals may include the same first signal and different first signals.

[0158] Optionally, in the present application, whether the M first signals are the same can also be expressed (or replaced) as whether the M first signals are scrambled. Among them, whether the M first signals are scrambled includes: all the M first signals are scrambled; or Q signals among the M first signals are scrambled, where Q is a positive integer less than M; or all signals among the M first signals are not scrambled.

[0159] Optionally, in the present application, whether the M first signals are the same can also be expressed (or replaced) as whether the second device can perform reception merging on the M first signals. Wherein, whether the second device can perform reception merging on the M first signals includes: performing reception merging processing on all the M first signals; or performing reception merging processing on Q signals among the M first signals, where Q is a positive integer less than or greater than M; or not performing reception merging processing on the M first signals.

[0160] The first information further indicates that part or all of information of Q first signals among the M first signals is the same, where Q is a positive integer not greater than M.

[0161] It should be noted that if the two first signals are the same, it means that part or all of the information included in the two first signals is the same, and part or all of the information included in the two first signals has not been scrambled. In other words, after obtaining the first information, the second device can determine whether there is an identical signal in the M first signals based on the first information, and determine whether to merge the M first signals.

[0162] In the present application, the first information sent by the first device to the second device indicates whether the M first signals are the same, and can also reflect whether the M first signals are scrambled signals, so that after obtaining the first information, the second device can determine whether to merge the M first signals according to the first information, thereby obtaining the maximum SNR and further improving the transmission performance.

[0163] In some optional implementations, the M first signals to be sent by the first device on the first time slot unit are different, including: the M first signals are different, or some of the M first signals are different. Assuming that there are N different first signals among the M first signals, the N first signals are obtained by scrambling all or part of the information carried by each of the N first signals, where 1≤N≤M.

[0164] There are many possible execution entities for scrambling all or part of the information carried by the first signal, which may be the first device or other devices that establish a communication connection with the first device, and the specific details are not limited here.

[0165] In the present application, by scrambling all or part of the information, the PAPR of the M first signals is reduced, thereby reducing the power loss of the first device sending the M first signals and improving the transmission performance.

[0166] In the embodiment shown above, the first information indicates whether the M first signals are the same. In actual applications, the first information can also indicate more content. In some optional implementations, when the M first signals are different, the first information is also used to indicate the way in which the first device scrambles the M first signals. It should be noted that, assuming that there are N different first signals among the M first signals, the scrambling of the M first signals mentioned in the previous sentence includes scrambling part or all of the information carried by each of the N first signals. Among them, there are many possible ways to scramble all or part of the information carried by the first signal, which are not specifically limited here.

[0167] Exemplarily, scrambling processing mode 1: using different sequences to generate the reference signal in the first signal. The different sequences include at least one of the following: sequences with different sequence identifiers; sequences with different initial values; and sequences with different root sequences.

[0168] Exemplarily, scrambling processing method 2: using different sequences to scramble the information to be sent in the first signal. The different sequences include at least one of the following: sequences with different sequence identifiers; sequences with different initial values; sequences with different root sequences. For example:

[0169] c(n)=(a(n)+b(n))mod2,n=0,1,2,…,L-1

[0170] Wherein, a(n) represents the information to be sent, b(n) represents the scrambling sequence, c(n) represents the scrambled sequence, mod represents a remainder or modulo operation, and L represents the length or quantity of the information to be sent.

[0171] Exemplarily, scrambling processing mode three: using a scrambling sequence to scramble the first signal included in each resource in the first time domain unit. The corresponding scrambling sequence is different in the resources occupied by the first signal in the first time domain unit.

[0172] In the present application, the first information can not only indicate whether the M first signals are the same, but also indicate the method of scrambling the M first signals, which enriches the role of the first information and the application scenarios of the technical solution of the present application. In addition, in the scheme where the first information indicates the method of scrambling the M first signals, after obtaining the first information, the second device can also determine the corresponding descrambling and merging methods according to the scrambling method, making the operation of the second device more convenient and reducing the processing delay.

[0173] 203. The second device determines whether to combine the M first signals according to the first information.

[0174] The second device receives the first information sent by the first device, where the first information indicates whether the M first signals are the same. The second device can determine whether to combine the M first signals according to the first information.

[0175] In some optional implementations, part or all of the information of at least two of the M first signals is the same. Then the first information may also indicate that at least two of the M first signals are the same. Based on this, the second device determines whether to merge the M first signals according to the first information, which also includes the second device determining whether to merge at least two of the M first signals according to the first information. Specifically, when the first information indicates that part or all of the information of the two first signals is the same, the second device may determine to merge the at least two first signals.

[0176] It can be understood that the existence of the same information in different first signals is a prerequisite for the second device receiving the first signal to merge the first signals. In other words, part or all of the information of at least two of the M first signals is the same. The second device can directly merge these identical first signals without performing any de-scrambling processing, thereby obtaining a gain in the signal-to-noise ratio of the combined reception and improving the receiving performance.

[0177] In some optional implementations, when the first information indicates that the M first signals are all the same, the second device may determine to merge the M first signals.

[0178] In the present application, when the first information indicates that the M first signals are the same, it means that part or all of the information carried by each of the M first signals is the same, and the information has not been scrambled. At this time, the second device can directly merge the M first signals to obtain the maximum SNR and improve the transmission performance.

[0179] In some optional implementations, when the first information indicates that the M first signals are different, the first information may also indicate a method for scrambling the M first signals. In this solution, the second device may determine a descrambling method for combining the M first signals according to the scrambling method indicated by the first information. After descrambling based on the corresponding scrambling method, the M first signals are combined.

[0180] Below, taking 20 repeated S-SSB signals as an example, in combination with Table 1, the first device and the second device perform different processing on the 20 repeated S-SSB signals, and the obtained effects are explained.

[0181] Table 1

[0182] First device (signal sending end) Second device (signal receiving end) Maximum available receiving power No scrambling No descrambling 23-18.7-13=-8.7dBm No scrambling Descrambling and merging 23-18.7=4.3dBm Scrambled No descrambling 23-9.1-13=0.9dBm Scrambled Descrambling and merging 23-9.1=13.9dBm

[0183] As shown in Table 1, assuming that the maximum transmission power of each S-SSB signal is 23dBm, the power of 20 repeated S-SSB signals used for synchronization is 13dBm. Assuming that the first device does not scramble the 20 repeated S-SSB signals, the PAPR is 18.7dB. Assuming that the first device scrambles the 20 repeated S-SSB signals, the PAPR after scrambling is 9.1dB.

[0184] Exemplarily, as shown in row 1 of Table 1, if the first device does not scramble the S-SSB signal and the second device does not descramble the S-SSB signal, the maximum obtainable receiving power of the second device on one of the S-SSB signals is -8.7 dBm.

[0185] Exemplarily, as shown in row 2 of Table 1, if the first device does not scramble the S-SSB signal, the second device descrambles and combines the 20 repeated S-SSB signals, and the maximum obtainable receiving power of one S-SSB signal of the second device is 4.3 dBm.

[0186] Exemplarily, as shown in row 3 of Table 1, if the first device scrambles the S-SSB signal and the second device does not descramble the S-SSB signal, the maximum obtainable receiving power of one S-SSB signal of the second device is 0.9 dBm.

[0187] Exemplarily, as shown in row 4 of Table 1, if the first device scrambles the S-SSB signal, and the second device descrambles and combines the 20 repeated S-SSB signals, the maximum obtainable receiving power of one of the S-SSB signals of the second device is 13.9 dBm.

[0188] Optionally, although the calculated maximum obtainable receiving power of the second device does not take into account the path loss between the first device and the second device, nor the receiving loss of the second device, this is the maximum receiving power that the second device can theoretically obtain, representing the upper limit of the receiving performance of the second device.

[0189] In summary, no matter whether the first device scrambles the signal or not, as long as the second device can determine that the signal can be combined, the maximum obtainable receiving power of the second device has been improved compared to the scheme without combining. Furthermore, in the scenario where the first device scrambles the first signal, the second device descrambles and combines the first signal, which improves the receiving power more significantly than without descrambling and combining. That is to say, in an embodiment of the present application, the first information can also indicate a method for scrambling the M first signals, so that the second device determines the descrambling method for combining the M first signals according to the scrambling method, and after descrambling based on the corresponding scrambling method, combines the M first signals. This scheme has a more significant effect on improving the transmission power of the first device.

[0190] In the present application, the first information can not only indicate whether the M first signals are the same, but also indicate the way to scramble the M first signals, which enriches the role of the first information and the application scenarios of the technical solution of the present application. In addition, in the scheme where the first information indicates the way to scramble the M first signals, after obtaining the first information, the second device can also determine the corresponding descrambling method according to the scrambling method, so that the second device can perform the corresponding descrambling correctly, thereby correctly demodulating the corresponding information.

[0191] In the embodiment of the present application, there are multiple possible ways to indicate the first information, which are described below respectively:

[0192] In some optional implementations, the first information may be indicated by a first sequence and / or a second sequence. That is, the first information may be indicated by a first sequence, the first information may be indicated by a second sequence, or the first information may be indicated by a first sequence and a second sequence, and the details are not limited here. The first sequence is used to generate a sequence of the first part of the first signal, and the second sequence is used to generate a sequence of the second part of the first signal.

[0193] For example, the first signal is a composite signal (ie, the first signal includes multiple parts). Figure 4 , Figure 4 A schematic diagram of a first signal provided in an embodiment of the present application. Figure 4 The illustrated embodiment takes the first signal being S-SSB as an example.

[0194] like Figure 4 As shown, S-SSB includes the following three parts: sidelink primary synchronization signal (S-PSS), sidelink secondary synchronization signal (S-PSS), and physical sidelink broadcast channel (PSBCH). At this time, if the first information is indicated by the first sequence or the second sequence, the first part mentioned above is any part of the aforementioned three parts; if the first information is indicated by the first sequence and the second sequence, the first part and the second part are any two parts of the aforementioned three parts.

[0195] It should also be noted that the first sequence or the second sequence can be a sequence determined or generated by the first device, or a sequence configured by the system, manually set, or preset, and is not specifically limited here.

[0196] In the present application, indicating the first information through the first sequence and / or the second sequence can provide a variety of different first information indication methods, thereby improving the accuracy of first information demodulation.

[0197] In general, the first information is indicated by the first sequence and / or the second sequence. Specifically, it includes indicating in a modulation manner, or indicating by a parameter of a generated sequence. The following describes the possible situations respectively:

[0198] 1. Indicating first information based on a modulation method.

[0199] As described above, the first signal in the embodiment of the present application can be either a reference signal or a physical channel. Since the reference signal is generated according to a sequence, specifically, the sequence is generated according to a certain time-frequency resource mapping, different types of first signals may have different associated reference signals.

[0200] If the first signal is a reference signal, the first sequence is used to generate the first reference signal. That is, the first reference signal is generated by the first sequence according to a certain time-frequency resource mapping. It can be understood that the so-called first signal is the first reference signal, which means that the first signal is generated only by the reference signal. The specific type of the reference signal has been described in detail in step 201 above and will not be repeated here.

[0201] If the first signal is a physical channel, the second sequence is used to generate a second reference signal. The second reference signal is a part of the physical channel, or the second reference signal is carried on the physical channel. It can be understood that when the first signal is a physical channel, the signal includes information bits and reference signals. The specific type of the physical channel has been described in detail in step 201 above and will not be repeated here. For example, the physical channel may include a DMRS for demodulation of the physical channel. For another example, the physical channel may also include a CSI-RS or a PT-RS.

[0202] It should be noted that the first reference signal or the second reference signal may be determined or generated by the first device, or may be sent to the first device by a device that establishes a communication connection with the first device, which is not specifically limited here.

[0203] After the first device obtains the first reference signal and / or the second reference signal, the first information may be sent to the second device by carrying the first modulation symbol in the first reference signal and / or the second reference signal, wherein the first modulation symbol is generated according to the first information.

[0204] Exemplarily, assuming that the first device sends the first information to the second device by carrying the first modulation symbol via the first reference signal, then the first modulation symbol d satisfies the following relationship:

[0205]

[0206] Among them, d represents the first modulation symbol mapped to the first information, r(n) represents the first reference signal, and y(n) represents the modulation result.

[0207] Exemplarily, for Formula 1, the mapping relationship between the first information and the first modulation symbol d may be as follows:

[0208] Optionally, assuming that the first information has two values, indicating two states respectively, then d is a binary phase shift keying (BPSK) symbol.

[0209] Optionally, assuming that the first information has 4 values, indicating 4 states respectively, then d is a quadrature phase shift keying (QPSK) symbol.

[0210] Optionally, assuming that the first information has 8 values, indicating 8 states respectively, then d is an 8PSK symbol, or a 16-quadrature amplitude modulation (QAM) symbol.

[0211] Optionally, assuming that the first information includes 16 states to be indicated, d is a 16QAM symbol.

[0212] In some optional implementations, assuming that the first reference signal r(n) is a DMRS used for PSBCH transmission, n represents a symbol of a DMRS sequence, and N represents the length of the DMRS sequence. Optionally, the DMRS sequence may be a random sequence or a low zero correlation zone sequence.

[0213] In the present application, the first information can be indicated based on the modulation method, which has no effect on the sent reference signal. The receiver can detect the modulation symbol through channel estimation, thereby reducing the detection complexity of the receiver.

[0214] 2. Indicating first information based on a correlation value of the sequence.

[0215] In the embodiment of the present application, the type of the first sequence or the type of the second sequence has multiple possibilities, including a low zero correlation zone sequence or a random sequence. The relevant descriptions and examples of the low zero correlation zone sequence or the random sequence have been described in the previous text and will not be repeated here. In the present application, whether it is the type of the first sequence or the type of the second sequence, there are multiple possibilities, which enriches the implementation method of the technical solution of the present application, can be flexibly applied to different scenarios, and further improves the practicality of the technical solution of the present application.

[0216] In some optional implementations, since there are multiple possibilities for the type of the first sequence and the type of the second sequence, there are also multiple possibilities for indicating the first information by the first sequence and / or the second sequence. In summary, the first information can be indicated by a cyclic shift (CS) value and / or a root sequence value of a low zero correlation zone sequence and / or an initial value of a random sequence.

[0217] Exemplarily, if the first information is indicated by a first sequence, when the type of the first sequence is a low zero correlation zone sequence, the first information is indicated by a cyclic shift value and / or a root sequence value of the low zero correlation zone sequence; when the type of the first sequence is a random sequence, the first information is indicated by an initial value of the random sequence.

[0218] Exemplarily, if the first information is indicated by a second sequence, when the type of the second sequence is a low zero correlation zone sequence, the first information is indicated by a cyclic shift value and / or a root sequence value of the low zero correlation zone sequence; when the type of the second sequence is a random sequence, the first information is indicated by an initial value of the random sequence.

[0219] Exemplarily, if the first information is indicated by the first sequence and the second sequence, the type of the first sequence and the type of the second sequence may be the same or different, and the specific details are not limited here. If the type of the first sequence and the type of the second sequence are the same, both of which are low zero correlation zone sequences, then the first information may be indicated by the cyclic shift value and / or root sequence value of the low zero correlation zone sequence corresponding to the first sequence, and the cyclic shift value and / or root sequence value of the low zero correlation zone sequence corresponding to the second sequence. If the type of the first sequence and the type of the second sequence are the same, both of which are random sequences, then the first information may be indicated by the initial value of the random sequence corresponding to the first sequence, and the initial value of the random sequence corresponding to the second sequence. If the type of the first sequence and the type of the second sequence are different, for example, the first sequence is a low zero correlation zone sequence and the second sequence is a random sequence, then the first information is indicated by the cyclic shift value and / or root sequence value of the low zero correlation zone sequence corresponding to the first sequence, and the initial value of the random sequence corresponding to the second sequence.

[0220] In the present application, the first information is indicated by a cyclic shift value and / or a root sequence value, and / or an initial value of a random sequence, which can not only reduce the complexity of the sequence blind detection of the second device (i.e., the device receiving the first information), thereby reducing the processing delay of the second device for the first information and / or the M first signals, and improving efficiency. In addition, since there are multiple possible ways to indicate the first information, the implementation methods and application scenarios of the technical solution of the present application are further enriched, and the practicality and flexibility of the technical solution are improved.

[0221] Based on the above description, it can be known that in the embodiment of the present application, the types of the first sequence and the second sequence are both possible in various ways. The following description is given by taking the first sequence as an example to indicate the first information. The second sequence is similar to the first sequence, and the relevant description of the first sequence can be referred to, which will not be repeated in the following text.

[0222] (i) The first sequence is a low zero correlation zone sequence.

[0223] In some optional implementations, taking the DMRS included in the PSBCH as an example, assuming that the DMRS sequence is a low zero correlation zone sequence, the DMRS sequence satisfies the following relationship, or the DMRS sequence can be described as:

[0224]

[0225]

[0226] Among them, M ZC represents the length of the parameter signal on the bandwidth of the DMRS sequence, m cs Represents the cyclic shift value of the sequence, α satisfies the following relationship:

[0227]

[0228] Among them, m cs represents the cyclic shift value of the sequence determined by the information to be transmitted, f(m cs ) represents the function of the cyclic shift value, N DMRS represents the length of the DMRS reference signal or the length of the DMRS sequence used. In some optional implementations, f(m cs ) can be any of the following:

[0229] Optional, f(m cs )=m cs .

[0230] Optional, f(m cs )=m cs +m0, m0 is a predefined number or a constant.

[0231] Optional, m0 is a predefined number or constant; represents a random number related to at least one parameter such as subcarrier spacing, symbol, or time slot index. cs (n c ,l) can be described as:

[0232]

[0233] Among them, c(i) represents a pseudo-random sequence, and the initial value of the pseudo-random sequence generator is c init =n ID , n ID It is configured by signaling or cell identification Or it is the synchronization source identifier, which is not limited here. l represents the symbol index, Indicates the system frame number index, Indicates the number of symbols in each time slot. The pseudo-random sequence here can be a small m sequence or a Gold sequence. For example, the pseudo-random sequence can be a random sequence defined in Section 5.2 of 3GPP NR protocol 38.211.

[0234] In some optional implementations, for a sequence with a length greater than or equal to 36, it can be described as:

[0235]

[0236] Where q is an integer, N ZC is the length of the sequence. Optionally, for a sequence with a length less than 36, reference may be made to the definition in Section 5.2.2.2 of 3GPP NR protocol 38.211, which will not be repeated here.

[0237] In some optional implementations, when the first sequence is a low zero correlation zone sequence, the root sequence value may be determined according to the value of the first information, wherein the root sequence value may also be referred to as a root sequence number.

[0238] Optionally, there is a one-to-one correspondence between multiple root sequence numbers u and the values ​​of the first information to be transmitted. The one-to-one correspondence may be network configured or preset, which is not specifically limited here. In other words, the root sequence number may be determined by the first device, or may be system configured, manually set, or preset, which is not specifically limited here.

[0239] Exemplarily, taking the first sequence as a DMRS sequence as an example, the relationship between the root sequence number and the value of the first information may be as follows:

[0240] For example, the first information includes two states to be transmitted, and the value of the first information is i=0, 1. When i=0, DMRS uses u0 as the root sequence number; when i=1, DMRS uses u1 as the root sequence number.

[0241] For example, the first information includes 4 states to be transmitted, and the value of the first information is i = 0, 1, 2, 3. When i = 0, DMRS uses u0 as the root sequence number; when i = 1, DMRS uses u1 as the root sequence number; when i = 2, DMRS uses u2 as the root sequence number; when i = 3, DMRS uses u3 as the root sequence number.

[0242] For example, the first information includes 8 states to be transmitted, and the value of the first information is i=0, 1, ..., 7; the root sequence numbers used by the corresponding DMRSs are u0, u1, ..., u7.

[0243] In the present application, the first information is indicated by the root sequence value of the low zero correlation zone sequence, so that when the second device performs sequence detection, it detects the sequence of the corresponding root sequence value and can parse the state value of the corresponding first information, thereby parsing the corresponding first information, reducing the complexity of blind detection of the second device receiving the sequence.

[0244] In some optional implementations, when the first sequence is a low zero correlation zone sequence, the first information may be indicated in combination with a cyclic shift (CS) value and a root sequence value.

[0245] Exemplarily, assuming that the number of states of the first information to be indicated is 4, and the value of the first information is i = 0, 1, 2, 3. Then 2 root sequence numbers and 2 CS values ​​can be used for indication. For example: when i = 0, u1 = 0, CS = CS0; when i = 1, u1 = 0, CS = CS1; when i = 2, u1 = 1, CS = CS0; when i = 3, u1 = 1, CS = CS1.

[0246] Exemplarily, assuming that the number of states of the first information to be indicated is 8, 2 root sequence numbers and 4 CS values ​​may be used for indication.

[0247] It is understandable that the low zero correlation zone sequence has a low PAPR characteristic, which means that the first device can indicate the first information without increasing the PAPR of the first signal, which is also conducive to improving the transmission performance. In addition, for the second device receiving the first information, whether it is the first information indicated by the cyclic shift value of the low zero correlation zone sequence or the root sequence value, the complexity of the second device sequence blind detection can be reduced, thereby reducing the processing delay of the second device for the first information and / or M first signals, and improving efficiency.

[0248] (ii) The first sequence is a random sequence.

[0249] The first information may be indicated based on an initial value of the random sequence. The following description will be expanded by taking the first sequence being a DMRS sequence of a PSBCH as an example.

[0250] Optionally, the reference signal sequence satisfies the following relationship, or in other words, the reference signal sequence r(m) is described as:

[0251]

[0252] Among them, c(n) is a random sequence.

[0253] In some optional implementations, the initial value c of the random sequence init satisfy:

[0254]

[0255] Wherein, a0, a1, k0, k1 are integers, and i is the value of the first information. Exemplarily, assuming that the first information includes 2 states to be indicated, the value of i can be 0 or 1. Assuming that the first information includes 4 states to be indicated, the value of i includes 0, 1, 2, and 3. Assuming that the first information includes 8 states to be indicated, the value of i includes 0-7.

[0256] In some optional implementations, assuming that the first sequence is a DMRS random sequence of the PSBCH, the initial value c of the random sequence is init Satisfies any of the following relationships:

[0257]

[0258]

[0259]

[0260]

[0261] In the present application, by defining the initial value of the first random sequence in the aforementioned manner, the sequence difference corresponding to the multiple states to be detected can be maximized, thereby improving the detection performance.

[0262] In a specific example: c init =2 9 ·i+N ID , or, c init =2 10 ·i+N ID Among them, N ID It is a cell identifier, a synchronization signal identifier, or a network configuration identifier.

[0263] In some optional implementations, the initial value c init We can also further log the value 2 3t A modulo operation is performed, which is not specifically limited here.

[0264] Optionally, a0, a1 are constants, or numbers configured or indicated by the network device, or determined by at least one of the following parameters: a constant, a number configured by the network, a symbol index, a cell identifier, a synchronization signal identifier, and a time slot number.

[0265] Optionally, k0 and k1 are integers, or numbers configured or indicated by the network device.

[0266] Optionally, the values ​​of k0 and k1 are any of the following:

[0267]

[0268]

[0269]

[0270] Among them, floor means rounding down, ceil means rounding up, and (x)max means the maximum value of x. Based on k0 and k1 in this example, it is possible to avoid non-overlapping value ranges of the initial values ​​of the sequences corresponding to the states to be detected, thereby ensuring that the difference of the sequences is maximized, thereby improving the detection performance.

[0271] In some optional implementations, the initial value of the random sequence may also be determined based on at least one of the following parameters and the first information:

[0272] A sequence identifier, whose value is a non-negative integer; an identifier or index of a first time domain unit, whose value is a non-negative integer; an identifier or index of a second time domain unit in which the first time domain unit is located, whose value is a non-negative integer; or an index or index of the M first signals on the first time domain unit, whose value is a non-negative integer. Optionally, the sequence identifier can be a cell identifier, an identifier of a synchronization signal, or a parameter value configured by a high layer for generating a sequence.

[0273] Among them, the first time domain unit is located in the second time domain unit. In other words, the second time slot unit is a time slot unit with a larger granularity than the first time slot unit, and the second time slot unit includes the first time slot unit. Exemplarily, the granularity of the first time slot unit is a symbol, then the granularity of the second time slot unit can be any one of a mini time slot, a time slot, a subframe, and a system frame. Exemplarily, the granularity of the first time slot unit is a time slot, then the granularity of the second time slot unit can be any one of a subframe and a system frame. Exemplarily, the granularity of the first time slot unit is a subframe, then the granularity of the second time slot unit can be in a system frame.

[0274] In the present application, there are multiple possible situations for the initial value of the random sequence, which can enrich the application scenarios of the technical solution of the present application and further enhance the practicality of the technical solution of the present application.

[0275] In the above-mentioned examples, the first information is indicated by the first sequence and / or the second sequence. In practical applications, at least one bit in the control signaling included in the signal may also be used to indicate the first information. This means that the second device may receive multiple first information and compare the multiple first information to prevent errors in the transmission or detection process and enhance the reliability of information transmission. Among them, at least one bit may be a bit of a reserved field in the signal, which is not specifically limited here.

[0276] In some optional implementations, the first device may also obtain configuration information indicated by the third device, and the configuration information is used to indicate the first information to the first device. The third device may be a terminal device or a network device, which is not specifically limited here. The configuration information may include the relevant content shown above for indicating the first information, as shown above, which will not be repeated here.

[0277] In some optional implementations, the first device may also send M first signals to the second device in the first time slot unit. The embodiment of the present application does not limit whether the timing of the first device sending the M first signals to the second device is the same as the timing of sending the first information.

[0278] Optionally, the first device may send M first signals and the first information to the second device at the same time. In this solution, spectrum resources for sending the first information and the first signal may be saved, thereby improving transmission efficiency.

[0279] Optionally, the first device may also first send M first signals to the second device, and then send the first information to the second device. In this scheme, after receiving the M first signals, the second device can determine whether the M first signals are the signals required by the second device based on the characteristics or functions of the M first signals. Based on this, the second device may not store or discard part or all of the M first signals that the second device does not need, and the second device may not process or discard the first information after receiving the first information, which can effectively reduce the occupation of the memory resources or storage resources of the second device and improve the performance of the second device. Among them, the characteristics or functions of the first signal include: if the first signal is used for synchronization, the second device can determine whether to receive the first signal based on whether it is already in a synchronization state; or, if the first signal is used for channel state measurement, the second device can determine whether to receive the first signal based on whether the current channel state has been obtained; or, if the first signal is used for beam tracking, the second device can determine whether to receive the first signal based on whether the beam of the current communication is in an invalid state.

[0280] Optionally, the first device may first send the first information to the second device, and then send M first signals to the second device. In this solution, after receiving the first information, the second device can determine whether to merge the M first signals. After receiving the M first signals, the second device can respond quickly and perform corresponding processing, which reduces the processing delay and improves the efficiency of the second device.

[0281] Next, the related equipment provided in the embodiments of the present application is described.

[0282] The present application provides a communication device, which includes a method for implementing the aforementioned Figures 1 to 4The module of the method executed by the first device or the second device in the embodiment shown. Figure 5 , Figure 5 A schematic diagram of the structure of a communication device provided in an embodiment of the present application. Figure 5 As shown, the communication device 500 includes a processing unit 501 and a transceiver unit 502 .

[0283] Optionally, the communication device 500 can be used to implement the aforementioned Figures 1 to 4 The functions implemented by the first device in the illustrated embodiment include, in summary, the following possible implementations:

[0284] In some optional implementations, the processing unit 501 is configured to determine M first signals to be sent on the first time domain unit, where M≥2 and is an integer.

[0285] The transceiver unit 502 is used to send first information to the second device, where the first information is used to indicate whether the M first signals are the same.

[0286] In some optional implementations, part or all of information of at least two first signals among the M first signals is identical.

[0287] In some optional implementations, if the M first signals are different, N first signals among the M first signals are obtained by scrambling all or part of the information carried by each of the N first signals, and 1≤N≤M.

[0288] In some optional implementations, if the M first signals are different, the first information is further used to indicate a manner in which the first device performs scrambling processing on the M first signals.

[0289] In some optional embodiments, the transceiver unit is further used to obtain configuration information indicated by a third device, where the configuration information indicates the first information to the first device; and / or, to indicate the first information to the second device via a control channel included in the first signal.

[0290] Optionally, the communication device 500 can also be used to implement the aforementioned Figures 1 to 4 In summary, the functions implemented by the second device in the illustrated embodiment include the following possible implementations:

[0291] In some optional embodiments, the transceiver unit 502 is used to receive first information sent from a first device, where the first information is used to indicate whether M first signals are the same, and the M first signals are sent by the first device on a first time slot unit, where M≥2 and is an integer.

[0292] The processing unit 501 is used to determine whether to combine the M first signals according to the first information.

[0293] In some optional implementations, part or all of the information of at least two of the M first signals is the same. The processing unit 501 is specifically configured to determine whether to perform merging processing on at least two of the M first signals according to the first information.

[0294] In some optional implementations, if the M first signals are different, N first signals among the M first signals are obtained by scrambling all or part of the information carried by each of the N first signals, and 1≤N≤M.

[0295] In some optional implementations, the processing unit 501 is specifically configured to combine the M first signals if the first information indicates that the M first signals are all the same.

[0296] In some optional implementations, if the M first signals are different, the first information is further used to indicate a manner in which the first device performs scrambling processing on the M first signals. The processing unit 501 is specifically configured to determine a descrambling manner for combining the M first signals according to the scrambling processing manner indicated by the first information if the first information indicates that the M first signals are different. Combining the M first signals according to the descrambling manner for combining the M first signals.

[0297] In some optional implementations, the first information is indicated by a control channel included in the first signal.

[0298] In addition, regardless of whether the communication device 500 implements the functions of the first device or the second device described in the foregoing embodiment, the following optional implementation modes are also included:

[0299] In some optional embodiments, the first information is indicated by a first sequence and / or a second sequence, the first sequence is used to generate a sequence of a first part in the first signal, and the second sequence is used to generate a sequence of a second part in the first signal.

[0300] In some optional embodiments, the type of the first sequence or the type of the second sequence includes: a low zero correlation zone sequence or a random sequence.

[0301] In some optional embodiments, the first information is indicated by a first sequence and / or a second sequence, including: indicating the first information by a cyclic shift value and / or a root sequence value of a low zero correlation zone sequence, and / or an initial value of a random sequence.

[0302] In some optional implementations, the root sequence value is determined according to the value of the first information.

[0303] In some optional embodiments, the initial value of the random sequence is determined based on at least one of the following parameters and the first information: a sequence identifier, an identifier of the first time domain unit, an identifier of the second time domain unit where the first time domain unit is located, or an index of M first signals on the first time domain unit; wherein the first time domain unit is located in the second time domain unit.

[0304] In some optional implementations, the initial value c of the random sequence init satisfy:

[0305]

[0306] Among them, a0, a1, k0, k1 are integers, and i is the value of the first information.

[0307] In some optional implementations, at least two first signals among the M first signals are repeated on first resources, and the first resources include at least one of frequency domain resources, code domain resources, or spatial domain resources.

[0308] In some optional implementations, the first information further indicates that part or all of information of Q first signals among the M first signals is the same, where Q is a positive integer not greater than M.

[0309] For the specific implementation process of the above implementation method, please refer to Figures 1 to 4 The relevant descriptions in the illustrated embodiment will not be repeated here.

[0310] See also Figure 6 , Figure 6 A schematic diagram of the structure of a communication device provided in an embodiment of the present application.

[0311] like Figure 6 As shown, the communication device 600 includes: a bus 603, a memory 604, a processor 605 and a communication interface 606. The processor 605, the memory 604 and the communication interface 606 communicate with each other through the bus 603. The communication device 600 can be a server or a terminal device. It should be understood that the present invention does not limit the number of processors and memories in the communication device 600.

[0312] The bus 603 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 6The bus 603 is represented by only one line, but it does not mean that there is only one bus or one type of bus. The bus 603 may include a path for transmitting information between various components of the communication device 600 (for example, the memory 604, the processor 605, and the communication interface 606).

[0313] The processor 605 may include any one or more of a central processing unit (CPU), a graphics processing unit (GPU), a microprocessor (MP), or a digital signal processor (DSP).

[0314] The memory 604 may include a volatile memory, such as a random access memory (RAM). The processor 605 may also include a non-volatile memory, such as a read-only memory (ROM), a flash memory, a hard disk drive (HDD), or a solid state drive (SSD).

[0315] The memory 604 stores executable program codes, and the processor 605 executes the executable program codes to respectively implement the functions of the transceiver unit 601 (corresponding to the aforementioned transceiver unit 501) and the processing unit 602 (corresponding to the aforementioned processing unit 502), thereby implementing the information transmission method. That is, the memory 604 stores instructions for executing the information transmission method provided in the embodiment of the present application.

[0316] The communication interface 606 uses a transceiver unit such as, but not limited to, a network interface card or a transceiver to implement communication between the communication device 600 and other devices or a communication network.

[0317] The communication device 600 is used to execute the operations performed by the first server in the aforementioned embodiment to implement the screen sharing method provided in the embodiment of the present application.

[0318] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0319] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0320] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0321] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0322] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk and other media that can store program code.

Claims

1. An information transmission method, characterized in that: The method is applied to a first device, and the method includes: Determine M first signals to be sent on a first time domain unit, where M is ≥ 2 and is an integer; Sending first information to the second device, where the first information is used to indicate whether the M first signals are the same.

2. The method according to claim 1, characterized in that Part or all of information of at least two of the M first signals is identical.

3. The method according to claim 1 or 2, characterized in that: If the M first signals are different, then N first signals among the M first signals are obtained by scrambling all or part of the information carried by each of the N first signals, and 1≤N≤M.

4. The method according to any one of claims 1 to 3, characterized in that If the M first signals are different, the first information is further used to indicate a manner in which the first device performs scrambling processing on the M first signals.

5. An information transmission method, characterized in that: The method is applied to a second device, and the method includes: Receiving first information sent from a first device, where the first information is used to indicate whether M first signals are the same, where the M first signals are sent by the first device in a first time slot unit, and M≥2 is an integer; Determine whether to perform merging processing on the M first signals according to the first information.

6. The method according to claim 5, characterized in that Part or all of the information of at least two of the M first signals is the same; The determining, according to the first information, whether to perform merging processing on the M first signals includes: It is determined whether to perform merging processing on at least two first signals among the M first signals according to the first information.

7. The method according to claim 5, characterized in that If the M first signals are different, then N first signals among the M first signals are obtained by scrambling all or part of the information carried by each of the N first signals, and 1≤N≤M.

8. The method according to claim 5 or 7, characterized in that: The determining, according to the first information, whether to perform merging processing on the M first signals includes: If the first information indicates that the M first signals are all the same, then the M first signals are merged.

9. The method according to claim 5 or 8, characterized in that If the M first signals are different, the first information is further used to indicate a manner in which the first device performs scrambling processing on the M first signals; Determining, according to the first information, whether to perform merging processing on the M first signals includes: If the first information indicates that the M first signals are different, determining a descrambling method for combining the M first signals according to the scrambling processing method indicated by the first information; The M first signals are combined and processed according to the descrambling method for combining the M first signals.

10. The method according to any one of claims 1 to 4 and 5 to 9, characterized in that The first information is indicated by a first sequence and / or a second sequence, the first sequence is used to generate a sequence of a first part in the first signal, and the second sequence is used to generate a sequence of a second part in the first signal.

11. The method according to claim 10, characterized in that The first signal is a first reference signal, and the first sequence is used to generate the first reference signal; and / or, The first signal is a physical channel, the second sequence generates a second reference signal, and the second reference signal is a part of the physical channel or is carried on the physical channel.

12. The method according to claim 11, characterized in that The first information is sent to the second device in a manner where the first reference signal and / or the second reference signal carries a first modulation symbol, and the first modulation symbol is generated according to the first information.

13. The method according to claim 10, characterized in that The type of the first sequence or the type of the second sequence includes a low zero correlation zone sequence or a random sequence.

14. The method according to claim 13, characterized in that The first information is indicated by a first sequence and / or a second sequence, including: The first information is indicated by a cyclic shift value and / or a root sequence value of the low zero correlation zone sequence, and / or an initial value of the random sequence.

15. The method according to claim 14, characterized in that The initial value of the random sequence is determined according to at least one of the following parameters and the first information: A sequence identifier, an identifier of the first time domain unit, an identifier of the second time domain unit where the first time domain unit is located, or an index of the M first signals on the first time domain unit; wherein the first time domain unit is located in the second time domain unit.

16. The method according to claim 14, characterized in that The initial value c of the random sequence init satisfy: Among them, a0, a1, k0, k1 are integers, and i is the value of the first information.

17. The method according to any one of claims 1 to 16, characterized in that At least two first signals among the M first signals are repeated on first resources, and the first resources include at least one of frequency domain resources, code domain resources, or space domain resources.

18. A communication device, characterized in that: include: The method comprises modules for implementing the method according to any one of the preceding claims 1 to 17.

19. A communication device, characterized in that: comprising a processor coupled to a memory; Instructions are stored in the memory, and when the instructions are executed on the processor, the communication device implements the method according to any one of claims 1 to 17.

20. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores instructions, and when the instructions are executed on a processor, the method according to any one of claims 1 to 17 is implemented.

21. A computer program product, characterized in that When the computer program product is executed on a computer, the method according to any one of claims 1 to 17 is implemented.

Images