CN114365441B - A communication method and a communication device - Google Patents

Abstract

The application provides a communication method and a communication device, wherein network equipment schedules symbol occupation of public information according to the principle of 'frequency expansion domain and time compression domain', and the occupation of the public information on the time domain is reduced, so that the energy saving benefit of the network equipment is improved. The communication method comprises the following steps: the network equipment determines first resources, wherein the first resources correspond to part of time units in a first time domain unit in a time domain, the first time domain unit comprises at least one time unit, and the number of the time units corresponding to the first resources is smaller than the number of the time units included in the first time domain unit; the network device sends a common message at the first resource.

Description

A communication method and a communication device

Technical Field

The present application relates to the field of communications, and more specifically, to a communication method and a communication device.

Background technique

System message broadcasting and paging are two basic functions of wireless communication systems. For the system message broadcasting function, the base station broadcasts system messages periodically according to the set period. For the paging function, the base station calculates the timing of sending paging messages according to the set paging parameters and user equipment identity (UEID). System messages and paging messages can be collectively referred to as public messages. The sending timing of the two in the time domain is fixed, so they cannot be merged and converged, which leads to the inevitable noise floor energy consumption of the base station.

In the prior art, public messages need to be sent by scanning beams, and one beam occupies one time slot. In this way, the base station needs to send in the entire time slot, which will result in a higher overhead for the base station. This way of sending public messages is not conducive to energy saving of the base station. Therefore, it is urgent to propose a method for saving overhead.

Summary of the invention

The present application provides a communication method and a communication device, which are helpful to improve the energy saving benefits of network equipment.

In a first aspect, a communication method is provided, comprising: a network device determines a first resource, the first resource corresponds to a part of the time units in a first time domain unit in the time domain, the first time domain unit includes at least one time unit, wherein the number of time units corresponding to the first resource is less than the number of time units included in the first time domain unit; the network device sends a public message in the first resource. Exemplarily, the first time domain unit is a time slot, and the time unit is a symbol. In an embodiment of the present application, since the first resource determined by the network device does not occupy all the time units in the first time domain unit in the time domain, the network device can shut down the unoccupied time units in the first time domain unit, thereby improving the energy saving benefits of the network device.

In an embodiment of the present application, optionally, the network device schedules the symbol occupancy of public messages according to the principle of "spreading the spectrum domain, compressing the time domain". By reducing the occupancy of public messages in the time domain, for example, reducing the number of symbols occupied by public messages in a time slot, unoccupied symbols can be shut down, which helps to improve energy saving benefits during idle time.

Optionally, the frequency domain resources occupied by the first resource occupy a maximum number of frequency domain units in a control resource set (control resource set, CORESET).

In a possible implementation, the frequency domain resources occupied by the first resource are determined based on one or more of the following: the transport block TB size corresponding to the common message, the number of time units occupied by a demodulation reference signal (DMRS), the number of time units occupied by a physical downlink control channel, and the number of time units occupied by a physical downlink data channel. The network device may determine the number of time units corresponding to the first resource when the frequency domain resources occupied by the first resource occupy the maximum number of RBs in the control resource set CORESET.

Exemplarily, the network device can determine the maximum number of RBs occupied by the first resource in CORESET based on the TB size corresponding to the public message, the number of symbols used for the demodulation reference signal DMRS, the number of symbols occupied by the physical downlink shared channel (physical downlink shared channel, PDSCH), and the number of symbols occupied by the physical downlink control channel (physical downlink control channel, PDCCH), and then determine the number of symbols occupied by the first resource. In this way, the network device can determine the number of symbols occupied by the first resource in the time domain while ensuring that the first resource occupies the maximum number of RBs in the frequency domain, so that it can occupy fewer symbols to achieve energy saving benefits.

Optionally, the method further includes: the network device determines a second resource based on the first resource, the second resource overlaps with the first resource in the time domain, and the second resource is used for data transmission. Exemplarily, the second resource can be used to transmit service data or control signaling data. For example, the first resource occupies 4 symbols in a time slot in the time domain (such as symbol 0-symbol 3), and the second resource also occupies symbols 0-symbol 4 in the time slot in the time domain. For example, the first resource occupies 4 symbols in a time slot in the time domain (such as symbol 0-symbol 3), and the second resource occupies symbols 0-symbol 2 in the time slot in the time domain.

Optionally, the network device may determine a plurality of first resources. Correspondingly, the network device may determine a plurality of second resources based on the plurality of first resources.

Optionally, in the embodiment of the present application, the public message is any one or more of the following: paging message, remaining minimum system information (RMSI), system information block (SIB), master information block (MIB).

In a second aspect, a communication method is provided, comprising: first, a network device determines the number of time windows in a system message broadcast period; then, the network device determines the number of beams in each time window based on the number of time windows; and finally, the network device uses the beam to send the system message, wherein each beam occupies one time domain unit.

In an embodiment of the present application, the network device may hash or discretize multiple time domain units used to send system messages within the system message broadcast period so that data converges to the time domain unit corresponding to the system message, so that the second resource used for data transmission converges to the time domain occupied by the first resource. This will not affect the user data transmission delay when the load is light, and can help improve the energy saving gain during busy hours.

Optionally, the duration of the time window is a beam scanning period, or a beam scanning unit.

In a possible implementation, the number of time windows satisfies the following formula:

N = rmsiPeriod/scanUnit;

N represents the number of time windows, rmsiPeriod represents the system message broadcast period, and scanUnit represents the beam scanning period.

In a possible implementation, the number of beams sent in each time window satisfies the following formula:

x = CEIL(ssbNum/N);

x represents the number of beams that need to be sent in each time window, CEIL represents rounding up, ssbNum represents the total number of beams, and N represents the number of time windows for sending public messages.

Optionally, if the network device distributes or discretizes the time domain units (e.g., time slots) corresponding to the multiple resources used to send the system message in a hashed manner within the system message broadcast period, then the determination of the time domain resources occupied by the multiple second resources also needs to refer to the time domain units corresponding to the multiple resources discretized. In other words, for the case of "time slot discretization", the time domain resources occupied by the multiple second resources can be the same as the time domain units occupied by the multiple resources used to send the system message.

In a third aspect, a communication device is provided, comprising modules or units for executing the method in any possible implementation of the first aspect or the second aspect.

In a fourth aspect, a communication device is provided, comprising a processor. The processor is coupled to a memory and can be used to execute instructions in the memory to implement the method in any possible implementation of the first aspect or the second aspect. Optionally, the communication device also includes a memory. Optionally, the communication device also includes a communication interface, and the processor is coupled to the communication interface.

In one implementation, the communication device is a network device. When the communication device is a network device, the communication interface may be a transceiver, or an input/output interface.

In another implementation, the communication device is a chip configured in a network device. When the communication device is a chip configured in a network device, the communication interface may be an input/output interface.

Optionally, the transceiver may be a transceiver circuit. Optionally, the input/output interface may be an input/output circuit.

In a fifth aspect, a processor is provided, comprising: an input circuit, an output circuit, and a processing circuit. The processing circuit is used to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor executes the method in any possible implementation of the first aspect or the second aspect.

In the specific implementation process, the processor can be a chip, the input circuit can be an input pin, the output circuit can be an output pin, and the processing circuit can be a transistor, a gate circuit, a trigger, and various logic circuits. The input signal received by the input circuit can be, for example, but not limited to, received and input by a receiver, and the signal output by the output circuit can be, for example, but not limited to, output to a transmitter and transmitted by the transmitter, and the input circuit and the output circuit can be the same circuit, which is used as an input circuit and an output circuit at different times. The embodiments of the present application do not limit the specific implementation methods of the processor and various circuits.

In a sixth aspect, a device is provided, comprising a processor and a memory. The processor is used to read instructions stored in the memory, and can receive signals through a receiver and transmit signals through a transmitter to execute the method in any possible implementation of the first aspect or the second aspect.

Optionally, the number of the processors is one or more, and the number of the memories is one or more.

Optionally, the memory may be integrated with the processor, or the memory may be provided separately from the processor.

In the specific implementation process, the memory can be a non-transitory memory, such as a read-only memory (ROM), which can be integrated with the processor on the same chip or can be set on different chips respectively. The embodiments of the present application do not limit the type of memory and the setting method of the memory and the processor.

It should be understood that the relevant data interaction process, such as sending indication information, can be a process of outputting indication information from a processor, and receiving capability information can be a process of receiving input capability information from a processor. Specifically, the processed output data can be output to a transmitter, and the input data received by the processor can come from a receiver. Among them, the transmitter and the receiver can be collectively referred to as a transceiver.

The device in the sixth aspect mentioned above can be a chip, and the processor can be implemented by hardware or by software. When implemented by hardware, the processor can be a logic circuit, an integrated circuit, etc.; when implemented by software, the processor can be a general-purpose processor, which is implemented by reading the software code stored in the memory. The memory can be integrated in the processor or can be located outside the processor and exist independently.

In the seventh aspect, a computer program product is provided, comprising: a computer program (also referred to as code, or instruction), which, when executed, enables a computer to execute a method in any possible implementation of the first aspect or the second aspect.

In an eighth aspect, a computer-readable medium is provided, which stores a computer program (also referred to as code, or instructions) which, when executed on a computer, enables the computer to execute a method in any possible implementation of the first aspect or the second aspect.

In a ninth aspect, a communication system is provided, comprising the aforementioned network device. Optionally, the communication system may further comprise a terminal device for communicating with the network device.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of a system architecture using an embodiment of the present application;

FIG2 is a schematic interaction diagram of a communication method according to an embodiment of the present application;

FIG3 is a schematic diagram of an example of applying a first resource of an embodiment of the present application;

FIG4 is a schematic flow chart of another communication method according to an embodiment of the present application;

FIG5 is a schematic diagram of time slot hashing using an embodiment of the present application;

FIG6 is a schematic block diagram of a communication device provided in an embodiment of the present application;

FIG7 is a schematic diagram of the structure of a network device provided in an embodiment of the present application;

FIG8 is a schematic block diagram of another communication device according to an embodiment of the present application.

Detailed ways

The technical solution in this application will be described below in conjunction with the accompanying drawings.

In the embodiments of the present application, optionally, “multiple” means “at least two” or “two or more”; “multiple” means “at least two” or “two or more”.

The technical solutions of the embodiments of the present application can be applied to various communication systems, such as long term evolution (LTE) systems, fifth generation (5G) communication systems, new radio (NR) systems, and future evolved communication systems.

FIG. 1 is a schematic diagram of the architecture of a communication system that may be applied in an embodiment of the present application. As shown in FIG. 1 , the communication system includes a core network device 110, an access network device 120, and at least one terminal device (such as a terminal device 130 and a terminal device 140 in FIG. 1 ). The terminal device is connected to the access network device wirelessly, and the access network device is connected to the core network device wirelessly or wiredly. The core network device and the access network device may be independent and different physical devices, or the functions of the core network device and the logical functions of the access network device may be integrated on the same physical device, or the functions of part of the core network device and part of the access network device may be integrated on a physical device. The terminal device may be fixed or movable. FIG. 1 is only a schematic diagram, and the communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in FIG. The embodiment of the present application does not limit the number of core network devices, access network devices, and terminal devices included in the communication system.

The access network device is an access device that the terminal device accesses to the communication system by wireless means, which may be a radio access network (RAN) device, a base station NodeB, an evolved NodeB (eNB), a base station (gNB) in a 5G communication system, a transmission point, a base station in a future communication system, or an access node in a wireless fidelity (Wi-Fi) system, one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system, or a network node constituting a gNB or a transmission point, such as a baseband unit (BBU), a centralized unit (CU), or a distributed unit (DU). The embodiments of the present application do not limit the specific technology and specific device form adopted by the access network device. In some deployments, the gNB may include a CU and a DU. The gNB may also include an active antenna unit (AAU). The CU implements some functions of the gNB, and the DU implements some functions of the gNB. For example, the CU is responsible for processing non-real-time protocols and services to implement the functions of the radio resource control (RRC) and packet data convergence protocol (PDCP) layers. The DU is responsible for processing physical layer protocols and real-time services to implement the functions of the radio link control (RLC) layer, the media access control (MAC) layer and the physical (PHY) layer. The AAU implements some physical layer processing functions, radio frequency processing and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be converted from the information of the PHY layer, under this architecture, high-level signaling, such as RRC layer signaling, can also be considered to be sent by the DU, or by the DU and the AAU. Optionally, the network device can be a device including one or more of a CU node, a DU node, and an AAU node. In addition, the CU can be used as a network device in an access network or as a network device in a core network (CN), and this application does not limit this.

The terminal device may also be referred to as a terminal, user equipment (UE), mobile station (MS), mobile terminal (MT), etc. The terminal device may be a mobile phone, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal device.

The access 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 airplanes, balloons and satellites in the air. The embodiments of the present application do not limit the application scenarios of the access network equipment and terminal equipment.

The embodiments of the present application may be applicable to downlink signal transmission, uplink signal transmission, and device-to-device (D2D) signal transmission. For downlink signal transmission, the sending device is an access network device, and the corresponding receiving device is a terminal device. For uplink signal transmission, the sending device is a terminal device, and the corresponding receiving device is an access network device. For D2D signal transmission, the sending device is a terminal device, and the corresponding receiving device is also a terminal device.

The access network device and the terminal device, as well as the terminal device and the terminal device, can communicate through the licensed spectrum (licensed spectrum), can also communicate through the unlicensed spectrum (unlicensed spectrum), or can communicate through the licensed spectrum and the unlicensed spectrum at the same time. The access network device and the terminal device, as well as the terminal device and the terminal device, can communicate through the spectrum below 6 gigahertz (GHz), can also communicate through the spectrum above 6G, and can also communicate using the spectrum below 6G and the spectrum above 6G at the same time. The embodiments of the present application do not limit the spectrum resources used between the access network device and the terminal device.

In the embodiments of the present application, unless otherwise specified, network devices refer to access network devices. The terminal device or network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also called main memory). The operating system can be any one or more computer operating systems that implement business processing through a process, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer includes applications such as browsers, address books, word processing software, and instant messaging software. In addition, the embodiments of the present application do not specifically limit the specific structure of the execution subject of the method provided in the embodiments of the present application, as long as it can communicate according to the method provided in the embodiments of the present application by running a program that records the code of the method provided in the embodiments of the present application, for example, the execution subject of the method provided in the embodiments of the present application can be a terminal device or a network device, or a functional module (such as a processor, a chip, or a chip system, etc.) in a terminal device or a network device that can call and execute a program.

In addition, various aspects or features of the present application can be implemented as methods, devices or products using standard programming and/or engineering techniques. The term "product" used in this application covers computer programs that can be accessed from any computer-readable device, carrier or medium. For example, computer-readable media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks or tapes, etc.), optical disks (e.g., compact discs (CDs), digital versatile discs (DVDs), etc.), smart cards and flash memory devices (e.g., erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.). In addition, the various storage media described herein may represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing and/or carrying instructions and/or data.

The resources (sometimes also referred to as physical resources) in the embodiments of the present application may include one or more of time domain resources, frequency domain resources, code domain resources, or spatial domain resources. For example, the time domain resources included in the physical resources may include at least one frame, at least one sub-frame, at least one slot, at least one mini-slot, at least one time unit, or at least one time domain symbol, etc. For example, the frequency domain resources included in the physical resources may include at least one carrier, at least one component carrier (CC), at least one bandwidth part (BWP), at least one resource block group (RBG), at least one physical resource block group (PRG), at least one resource block (RB), or at least one sub-carrier (SC), etc. For example, the spatial domain resources included in the physical resources may include at least one beam, at least one port, at least one antenna port, or at least one layer/spatial layer, etc. For example, the code domain resources included in the physical resources may include at least one orthogonal cover code (orthogonal cover code, OCC), or at least one non-orthogonal multiple access (non-orthogonal multiple access, NOMA) code, etc.

The time domain unit may be a frame, a subframe, a slot, a microslot (or a mini-slot), or other time domain units such as a symbol. A microslot is a time domain unit whose time domain length is less than a time slot. The time length of a frame is 10 milliseconds (ms), including 10 subframes, and the time length corresponding to each subframe is 1 ms. A slot includes 12 symbols in the case of an extended cyclic prefix and 14 symbols in the case of a normal cyclic prefix. The time domain symbols here may be orthogonal frequency division multiplexing (OFDM) symbols. The number of time domain symbols included in a microslot is less than 14, such as 2 or 4 or 7, etc. Alternatively, a slot may include 7 time domain symbols, and the number of time domain symbols included in a microslot is less than 7, such as 2 or 4, etc., and the specific values are not limited.

At present, when a network device schedules a public message to be sent on a certain beam, it occupies all symbols of the corresponding time slot, that is, wide occupancy in the time domain and narrow occupancy in the frequency domain, resulting in the inability of the network device to shut down some symbols in the corresponding time slot and to obtain greater energy-saving benefits. Here, "shutdown" means not sending or receiving, and being in a dormant state.

Figure 2 is a schematic interaction diagram of a communication method 200 according to an embodiment of the present application. Optionally, the terminal device in Figure 2 may be the terminal device in Figure 1 (for example, terminal device 130 or terminal device 140), or may refer to a device in the terminal device (for example, a processor, a chip, or a chip system, etc.). The network device may be the access network device 120 in Figure 1, or may refer to a device in the network device (for example, a processor, a chip, or a chip system, etc.). It is also understandable that part or all of the information exchanged between the terminal device and the network device in Figure 2 may be carried in an existing message, channel, signal or signaling, or may be a newly defined message, channel, signal or signaling, without specific limitation. As shown in Figure 2, the method 200 includes:

S201, the network device determines a first resource, which corresponds to some time units in a first time domain unit in the time domain, and the first time domain unit includes at least one time unit, wherein the number of time units corresponding to the first resource is less than the number of time units included in the first time domain unit.

The first time domain unit can refer to the description of the time domain unit in the previous text. Optionally, the time unit is a concept with a smaller granularity than the first time domain unit. The first time domain unit may include at least one time unit. For example, taking the first time domain unit as a time slot and the time unit as a symbol as an example, assuming that a time slot includes 14 symbols, then the number of symbols corresponding to the first resource is less than 14, for example, the first resource occupies 4 symbols in the time domain. In this way, the network device can shut down the unoccupied symbols to achieve energy saving.

S202: The network device sends a public message on a first resource.

Optionally, the common message is any one of the following: a paging message, remaining minimum system information RMSI, and a system information block SIB.

Optionally, the first resource here can be one or more. Exemplarily, if the network device needs to occupy multiple first resources to send a common message, the number of time units corresponding to each first resource is less than the number of time units included in the first time domain unit, so that the resources used to send the common message occupy as much frequency domain as possible, and occupy as little time domain as possible, so as to turn off unused time units (e.g., symbols).

In an embodiment of the present application, the network device schedules the symbol occupancy of the public message according to the principle of "spreading the spectrum domain, compressing the time domain". By reducing the occupancy of the public message in the time domain, for example, reducing the number of symbols occupied by the public message in the time slot, the unoccupied symbols can be shut down, which helps to improve the energy saving benefits during idle time.

In S201, the number of time units corresponding to the first resource is smaller than the number of time units included in the first time domain unit. This may be achieved in different ways, and the embodiments of the present application are not limited to this.

In an optional implementation, the network device may determine the first resource in the order of first time domain and then frequency domain, so that the number of time units corresponding to the first resource is less than the number of time units included in the first time domain unit. The network device sets the number of time units corresponding to the first resource to achieve that the number of time units corresponding to the first resource is less than the number of time units included in the first time domain unit. For example, taking a time slot including 14 symbols as an example, the network device sets the first resource to correspond to 5 symbols in the time domain, and turns off the remaining 9 symbols. Assuming that the network device calculates that each of the 5 symbols needs to occupy 4 RBs (RB0, RB1, RB2 and RB3) in the frequency domain corresponding to each symbol, then the first resource determined by the network device occupies a total of 5*4=20 RBs. Of course, here it is only described as the number of symbols corresponding to the first resource is 5 symbols, and it does not constitute a limitation on the embodiment of the present application. If 5 symbols do not meet the transmission requirements, the network device can increase the number of symbols corresponding to the first resource. Optionally, the number of symbols corresponding to the first resource set by the network device is at least 3, and the 3 symbols are occupied by PDCCH, PDSCH and DMRS respectively.

Another optional implementation method is that the network device determines the first resource by first determining the frequency domain and then the time domain in order to achieve that the number of time units corresponding to the first resource is less than the number of time units included in the first time domain unit. For example, assuming that the first resource needs to occupy 80 RBs, the network device first occupies the maximized frequency domain unit on the frequency domain unit corresponding to symbol 0, such as the frequency domain unit of the control resource set CORESET. For example, the maximum number of RBs that can be occupied in symbol 0 is 16 (RB0, RB1, ..., RB15, respectively), and then occupies the maximum number of RBs on each symbol in turn. For example, the maximum number of RBs occupied on each symbol from symbol 1 to symbol 4 is also 16 (RB0, RB1, ..., RB15, respectively), so that the number of symbols occupied by the first resource in the time domain is 5. Optionally, RB is only used as an example for illustration here, but it does not limit the embodiments of the present application. In fact, RB can be replaced with other possible frequency domain units by a technician in this field.

Optionally, the network device can determine the first resource based on the size of the public message, and the time domain resources and frequency domain resources occupied by the first resource meet the following conditions: the number of time units corresponding to the first resource is determined while ensuring that the frequency domain resources occupied by the first resource occupy multiple frequency domain units according to certain conditions.

Exemplarily, the size of the common message refers to the size of the transport block (TB) occupied by the common message. Optionally, the network device calculates the number of time units (e.g., symbols) occupied by the first resource on the premise that the first resource occupies as much of the frequency domain unit (e.g., RB) of the corresponding bandwidth part (BWP) in the frequency domain as possible.

Optionally, the frequency domain resource occupied by the first resource occupies multiple frequency domain units according to certain conditions, including: the frequency domain resource occupies the maximum number of frequency domain units in the control resource set CORESET; or the frequency domain resource maximally occupies the frequency domain units in CORESET. For example, the frequency domain unit may be an RB.

For example, the network device sends a public message according to the synchronization signal block (SSB) beam scanning. Each SSB beam occupies a time slot. In each time slot, according to the principle of "spreading the spectrum domain, compressing the time domain", try to occupy as much frequency domain as possible, and occupy as little time domain as possible. Optionally, "spreading the spectrum domain, compressing the time domain" means: maximizing the occupation of frequency domain units in the frequency domain, and minimizing the occupation of symbols in the time domain. In this way, the number of symbols occupied by public messages in the time slot can be reduced. The network device uses the above principles to schedule the resources for sending public messages. For symbols that are not occupied in the time slot, the network device can perform symbol-level shutdown, thereby obtaining energy-saving benefits during idle time and achieving the purpose of energy saving.

Exemplarily, taking the case where the time unit is a symbol, the process of determining the number of time units corresponding to the first resource in the time domain can be understood as "public message symbol aggregation".

Optionally, the network device determines the frequency domain resources occupied by the first resource (e.g., the number of resource blocks RB) based on one or more of the following: the size of the transport block TB corresponding to the common message, the number of time units (e.g., symbols) occupied by the demodulation reference signal DMRS, the number of time units occupied by the physical downlink control channel, and the number of time units occupied by the physical downlink data channel. When the frequency domain resources maximize the occupation of multiple RBs in a control resource set CORESET, the network device determines the number of time units corresponding to the first resource.

For example, as an optional implementation manner, the network device determines the first resource by taking the following steps:

1. Get the TB size of the public message transmission block, including the message payload and cyclic redundancy check (CRC) check bits, recorded as TBSize;

2. Set the modulation and coding scheme (MCS) for scheduling public messages (usually set to 0).

MCS determines the modulation order (the adjustment order can be recorded as Qm), the target code rate (the target code rate can be recorded as R) and the spectral efficiency (SE), which can be obtained by querying Table 5.1.3.1-2 (Table 5.1.3.1-2 is the second table in Section 5.1.3.1) of the 3rd Generation Partnership Project (3GPP) technical standard (TS) 38.214 V15.7.0;

3. Each RB includes 12 resource elements (REs). The number of bits that can be transmitted per symbol per RB is equal to 12. The number of "symbols * RBs" that the payload needs to occupy is calculated according to the following formula. The number of "symbols * RBs" that the payload needs to occupy is recorded as payload_symbol_rb_num. Payload_symbol_rb_num satisfies the following formula:

payload_symbol_rb_num=TBSize/(12*SE)

4. Set the maximum number of RBs available for the public message CORESET to coreset0_max_rb (generally set through the cell configuration), and calculate the number of symbols that the payload needs to occupy according to the following formula, recorded as payload_symbol_num: payload_symbol_num = payload_symbol_rb_num/coreset0_max_rb

5. Calculate the total number of symbols occupied by PDSCH: The symbol occupancy of PDSCH and PDSCH DMRS needs to be considered comprehensively. The total number of symbols occupied by PDSCH needs to include PDSCH DMRS completely. PDSCH DMRS refers to Table 7.4.1.1.2-3 (Table 7.4.1.1.2-3 is the third table of Section 7.4.1.1.2) and Table 7.4.1.1.2-4 (Table 7.4.1.1.2-4 is the fourth table of Section 7.4.1.1.2) of 3GPP TS38.211V15.3.0. Taking PDSCH mapping type A and PDSCH DMRS single symbol occupancy as an example, the optional calculation method is as follows:

6. Calculate the RBs occupied by PDSCH:

rb_num=payload_symbol_rb_num/symbol_num Optionally, the number of RBs occupied by the first resource obtained by the above steps 1 to 6 can also be obtained by generating a set of static tables for query.

As another optional implementation, illustratively, the network device may determine the number of RBs occupied by the frequency domain resource corresponding to the first resource based on the TB size corresponding to the common message, the number of time units (e.g., symbols) occupied by the DMRS, the number of time units occupied by the PDSCH, the number of time units occupied by the PDCCH, and the number of time units occupied by the DMSR. The network device calculates the number of time units corresponding to the first resource when the RB occupied by the frequency domain resource corresponding to the first resource is the largest.

Here, description is made in conjunction with the example in Table 1. Table 1 shows the corresponding relationship between the TB size, the symbol length occupied by the PDSCH and DMRS, the number of symbols occupied by the PDCCH, and the number of RBs.

Table 1

In Table 1, the first three columns are the corresponding relationship between the TB size range, PDSCH and DMRS scheduling symbol length, and the number of RBs when the number of symbols occupied by PDCCH is 1. In Table 1, the last three columns are the corresponding relationship between the TB size range, PDSCH and DMRS scheduling symbol length, and the number of RBs when the number of symbols occupied by PDCCH is 2.

Optionally, Table 1 is only an illustrative example for ease of understanding, but does not limit the embodiments of the present application. In fact, there may be other reasonable combinations of the values in Table 1.

In an embodiment of the present application, optionally, the process of determining the first resource by the network device is to aggregate the resources for scheduling the common message (including aggregation on the time domain resources) so that the frequency domain unit corresponding to the first resource is the largest, thereby reducing the occupation of the time domain unit. Optionally, in another description, "compressing the time domain" in the embodiment of the present application is also "aggregation of symbols in the time slot". Here, it is described in conjunction with the example of the first resource in Figure 3. Optionally, the description of the radio frame, time slot and type in Figure 3 can refer to the existing description, and will not be repeated here. As shown in Figure 3, taking the case of a time slot (for example, index 10) in a radio frame scheduled by the network device to send SIB as an example, before the symbol aggregation is performed, the network device sends SIB to occupy RB0-RB3 in the frequency domain, and 0-13 in the time domain. Among them, the resources occupied by PDSCH, PDCCH, and DMRS are shown in Figure 3. If the above-mentioned principle of "spread spectrum domain, compressing time domain" is adopted to aggregate the symbols in the time slot, an example diagram of the aggregated first resource shown in Figure 3 can be obtained. As shown in Figure 3, after symbol aggregation, the network device occupies RB0-RB15 in the frequency domain, and the symbols occupied in the time domain are symbols 0-4. Here, the resources after symbol aggregation in Figure 3 are an example of the first resource, that is, they occupy RB0-RB15 in the frequency domain, and the symbols occupied in the time domain are symbols 0-4. It can be seen that after symbol aggregation is performed using the communication method of an embodiment of the present application, the number of symbols occupied by the resources used to send SIB in the time domain is significantly reduced. Here, under the premise of meeting the quality of service (QoS) delay requirements, when sending service data, the network device can give priority to sending data in the time slot and symbol where the SIB is located. For example, the network device uses symbols 0-4 in the time slot in Figure 3 to send data.

Optionally, Figure 3 is only illustrated by taking SIB as an example, but does not limit the embodiments of the present application. In fact, the network device may also adopt the method shown in Figure 3 when determining the resources for sending the paging message or the remaining minimum system information RMSI.

Optionally, Figure 3 only takes one of the time slots for sending SIB (the time slot with index 10) as an example for illustration, and a similar method may also be used for other time slots (such as the time slot with index 11, the time slot with index 12, or the time slot with index 13).

Optionally, the network device may also determine a second resource for sending data based on the first resource. Optionally, the method 200 further includes: S203, the network device determines a second resource based on the first resource, the second resource overlaps with the first resource in the time domain, and the second resource is used for data transmission. Optionally, the second resource can be used to transmit service data or control command data, which is not limited.

The second resource may completely overlap with the first resource in the time domain, or may also partially overlap. Optionally, the first resource and the second resource may be different in the frequency domain. For ease of understanding, the following example describes the situation where "the first resource and the second resource overlap in the time domain".

For example, the start time unit corresponding to the second resource is the same as the start time unit corresponding to the first resource, and the end time unit corresponding to the second resource is the same as the end time unit corresponding to the first resource. Exemplarily, taking the time slot indexed as 10 in FIG. 3 as an example, the first resource determined by the network device occupies 4 symbols (symbol 0-symbol 3) in the time domain, then it can be determined that the second resource also occupies 4 symbols (symbol 0-symbol 3) in the time domain. Optionally, taking FIG. 3 as an example, if the network device determines 4 first resources, such as the first resource corresponding to index 10, the first resource corresponding to index 11, the first resource corresponding to index 12, and the first resource corresponding to index 13, then, correspondingly, the number of second resources can also be 4, and each second resource occupies 4 symbols in the time domain.

For example, the start time unit corresponding to the second resource is the same as the start time unit corresponding to the first resource, and the end time unit corresponding to the second resource is different from the end time unit corresponding to the first resource. Exemplarily, the first resource determined by the network device occupies 4 symbols (symbol 0-symbol 3) in the time domain, then it can be determined that the second resource also occupies 3 symbols (symbol 0-symbol 2) in the time domain. Optionally, taking Figure 3 as an example, if the network device determines 4 first resources, such as the first resource corresponding to index 10, the first resource corresponding to index 11, the first resource corresponding to index 12, and the first resource corresponding to index 13, then, correspondingly, the number of second resources can be 4, and each second resource occupies 3 symbols in the time domain.

S204, the network device performs data transmission on the second resource. Optionally, "transmission" is "receiving" or "sending".

Optionally, if the network device determines multiple first resources, then the network device may also determine multiple second resources, which is not limited to this.

The embodiment of the present application also provides a communication method, in which the network device can hash and distribute multiple time domain units (each time domain unit includes at least one time unit) used to send system messages within the system message broadcast period, or discretize them, so that the service data can converge to the time domain unit corresponding to the system message, so that the time domain occupied by the second resource can be converged to the time domain occupied by the first resource as much as possible, so that when the load is light (light load means that the load is not very heavy), it will not affect the user data transmission delay and can save energy. Exemplarily, this process can be called "hashing of system message time slots (time slots can also be other time domain units)". Optionally, the process of "time slot hashing" can be implemented alone or in combination with the process of "symbol aggregation" in the previous text, and there is no specific limitation on this. For the situation of combined implementation, when the network device schedules the resources of the system message, the number of symbols occupied by each time slot in the process of "system message time slot hashing" can be obtained by the method of "symbol aggregation" in the previous text.

FIG4 is a schematic flow chart of a communication method 400 according to another embodiment of the present application. Optionally, the terminal device involved in the method 400 may be the terminal device in FIG1 (e.g., the terminal device 130 or the terminal device 140), or may refer to a device in the terminal device (e.g., a processor, a chip, or a chip system, etc.). The network device may be the access network device 120 in FIG1, or may refer to a device in the network device (e.g., a processor, a chip, or a chip system, etc.).

As shown in FIG. 4 , the method 400 includes:

S401, the network device determines the number of time windows in a system message broadcast cycle.

Optionally, the network device may determine the number of time windows within the system message broadcast cycle according to the system message broadcast cycle and the duration of the time window.

Exemplarily, the network device sends the system message according to SSB beam scanning, each SSB beam can occupy a slot, and the slots occupied by each SSB beam can be evenly hashed within the broadcast period of the system message.

Within the system message broadcast period siPeriod, scanUnit is used as the duration of the time window or the scanning unit, and each SSB beam is hashed according to scanUnit for scanning and transmission. That is, each scanning unit completes the scanning and transmission of part of the beam, and the scanning and transmission of all SSB beams are completed within the system message broadcast period.

Optionally, the duration of the time window is the beam scanning period. Optionally, the beam scanning period can be predefined, or can be determined based on the system message broadcast period and the number of beams. For example, the minimum value of the beam scanning period = CEIL (T/S), the maximum value of the beam scanning period = T, where T represents the system message broadcast period, S represents the number of beams, and the beam scanning period can take values between the maximum and minimum values.

Optionally, the network device may determine the number of time units used in the time domain units occupied by each beam hashed into each time window by adopting the above-mentioned method of determining the number of time units included in the first resource. For example, before the network device uses at least one beam in each time window to send a system message, when determining the number of time units used in the time domain units occupied by each beam, the above-mentioned principle of "spreading the spectrum domain, compressing the time domain" may be adopted to determine, that is, determining the number of symbols to be used in the slot occupied by each beam.

Optionally, the number of time windows satisfies the following formula (1):

N＝rmsiPeriod/scanUnit (1)

N represents the number of time windows, rmsiPeriod represents the system message broadcast period, and scanUnit represents the beam scanning period.

For example, if the system message broadcast period is 80 ms and the beam scanning period is 20 ms, then the network device substitutes the above formula (1) for calculation and obtains that the number of time windows is 4.

S402: The network device determines the number of beams in each time window based on the number of time windows. Each beam occupies a time domain unit, and each time domain unit includes at least one time unit.

Exemplarily, in the case of uniform hashing, the number of beams sent in each time window may satisfy the following formula:

x＝CEIL(ssbNum/N) (2)

x represents the number of beams in each time window, CEIL represents rounding up, ssbNum represents the total number of beams, and N represents the number of time windows.

For example, if the number of time windows is 4 and the total number of beams is 7, then the network device can substitute (2) above to calculate the number of beams that need to be sent in each time window, specifically: the number of beams in the first time window is 2, the number of beams in the second time window is 2, the number of beams in the third time window is 2, and the number of beams in the fourth time window is 1.

Optionally, the SSB beams that need to be scanned and sent in each beam scanning cycle can be represented by an index. For example, S[i] = {x*i..., min(x*i-1, ssbNum-1)}, i = {0,.., N-1}, S[i] represents the SSB index set that needs to be scanned and sent in the i-th beam scanning cycle or scanning unit, ssbNum represents the total number of beams, x represents the number of beams that need to be sent in each time window, and N represents the number of time windows.

S403: The network device uses the beam to send a system message.

Exemplarily, the network device may calculate the number of time windows based on the system message broadcast period and the beam scanning period. Then, the network device calculates the number of beams that need to be sent in each time window based on the number of time windows. The network device uses the beams that need to be sent in each time window to send the system message. That is, the network device may send the system message through multiple time windows. Moreover, in each time window, the network device uses at least one SSB beam to send the system message.

For ease of understanding, here we will describe the situation where time slots are hashed in various time windows in combination with the example in Figure 5. Taking the diagram in Figure 5 as an example, assuming that the system message broadcast period is 80ms, the scanning period is 20ms, and the number of beams is 7, the upper part of Figure 5 is a time slot distribution diagram of the prior art, and the lower part is a time slot distribution diagram of the present application. It can be seen from the upper part of Figure 5 that the 7 time slots corresponding to the 7 beams are all within the first 20ms. If the time slots shown in the upper part of Figure 5 are used to schedule service data, the delay is large. It can be seen from the lower part of Figure 5 that the 7 time slots corresponding to the 7 beams are evenly distributed in 4 time windows, and each time window occupies 20ms. If the time slots shown in the lower part of Figure 5 are used to schedule service data, the delay is small. Since the time domain resources corresponding to the resources used to schedule service data in this application overlap with the time domain corresponding to the resources for sending system messages, it is beneficial to reduce the delay of service data by discretizing the time slots for scheduling system messages.

Optionally, when the system message is sent using the time slots distributed in FIG. 5 , the number of symbols used in each time slot in FIG. 5 can be obtained by using the “symbol aggregation” method in FIG. 3 .

In order to allow more time domain units or time units (e.g., time slots, symbols) to have more opportunities to enter a state of no data scheduling, so as to perform symbol shutdown, thereby achieving energy saving of network devices, in an embodiment of the present application, service data can also be aggregated to the time domain resources corresponding to sending system messages. In an embodiment of the present application, the time domain resources corresponding to the resources used for data transmission can overlap with the time domain resources occupied by the resources used to send system messages, so that the scheduling of data is more concentrated in the time domain.

Optionally, the method 400 also includes: the network device determines a second resource based on the resources occupied by sending system messages, the time domain resources corresponding to the second resource overlap with the time domain resources occupied by sending system messages, and the second resource is used for data transmission (which can be business data or control signaling data, which is not limited to this). Exemplarily, for the network device, the network device can use the second resource to send data. For the terminal device, the terminal device can receive data on the second resource. Here, "the time domain resources corresponding to the second resource overlap with the time domain resources occupied by sending system messages" can refer to the description of "the first resource and the second resource overlap in the time domain" in the previous method 200. The example of "the first resource and the second resource overlap in the time domain" is also applicable here. For the sake of brevity, it will not be repeated here.

Optionally, the number of time units included in the resources occupied by sending the system message is determined using the method in the above method 200. For example, the number of symbols included in the resources occupied by sending the system message is less than 14 symbols included in a time slot.

Optionally, the resources occupied by sending system messages may be one or more, and there is no limitation on this. If there are multiple resources used to send system messages, and the time domain units corresponding to the multiple resources used to send system messages are discretely distributed (or hashed) in multiple time windows (for example, the number of multiple time windows is determined using the aforementioned method 400), then the network device can use the time domain resources corresponding to the multiple resources that are discretely distributed as the time domain resources corresponding to the resources used to schedule service data, that is, the time domain units corresponding to the multiple second resources can also be discretely distributed in multiple time windows in the aforementioned manner of "the time domain units corresponding to the multiple resources used to send system messages are discretely distributed in multiple time windows".

It should be noted that if the network device hashes or discretizes the time domain units (for example, time slots) corresponding to the multiple resources used to send system messages within the system message broadcast period, then the determination of the time domain resources occupied by the multiple second resources also needs to refer to the time domain units corresponding to the multiple resources that are discretized. In other words, for the case of "time slot discretization", the time domain resources occupied by the multiple second resources can be the same as the time domain units occupied by the multiple resources used to send system messages. For example, taking Figure 5 as an example, assuming that the time domain units corresponding to the multiple resources used to send system messages are: time slots 1 to time slots 7, and time slots 1 to time slots 7 are hashed according to the example in Figure 5, then the time domain units occupied by the multiple second resources can also be time slots 1 to time slots 7, and the distribution method of time slots 1 to time slots 7 also follows the hash distribution of the time domain units corresponding to the multiple resources used to send system messages, that is, the example in Figure 5.

It should be understood that the examples in FIG. 3 and FIG. 5 are only for the convenience of those skilled in the art to understand the embodiments of the present application, and are not intended to limit the embodiments of the present application to the specific scenarios illustrated. Those skilled in the art can obviously make various equivalent modifications or changes based on the examples in FIG. 3 and FIG. 5, and such modifications or changes also fall within the scope of the embodiments of the present application.

Optionally, some optional features in the embodiments of the present application may be implemented independently in certain scenarios without relying on other features, such as the solution on which they are currently based, to solve corresponding technical problems and achieve corresponding effects, or may be combined with other features according to needs in certain scenarios. Accordingly, the devices provided in the embodiments of the present application may also implement these features or functions accordingly, which will not be described in detail here.

It should be understood that the "embodiment" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, the various embodiments in the entire specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner.

It should be understood that the various schemes of the embodiments of the present application can be used in reasonable combination, and the explanations or descriptions of the various terms appearing in the embodiments can be mutually referenced or explained in the various embodiments, without limitation.

It should also be understood that in various embodiments of the present application, the size of the sequence number of each process does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic. The various digital numbers or sequence numbers involved in the above-mentioned processes are only for the convenience of description and should not constitute any limitation on the implementation process of the embodiments of the present application.

Corresponding to the method provided in the above method embodiment, the embodiment of the present application also provides a corresponding device, which includes a module for executing the corresponding embodiment of the above embodiment. The module can be software, hardware, or a combination of software and hardware. Optionally, the technical features described in the method embodiment are also applicable to the following device embodiment.

Fig. 6 is a schematic block diagram of a communication device provided in an embodiment of the present application. As shown in Fig. 6 , the communication device 1000 may include a transceiver unit 1100 and a processing unit 1200 .

In one possible design, the communication device 1000 may correspond to the network device in the above method embodiment, for example, it may be a network device, or a chip configured in the network device.

Specifically, the communication device 1000 may correspond to the network device in the method 200 according to the embodiment of the present application, and the communication device 1000 may include a unit for executing the method executed by the network device in the method 200 in Figure 2, or include a unit for executing the method 400 in Figure 4. In addition, each unit in the communication device 1000 and the above-mentioned other operations or functions are respectively for implementing the corresponding process of the network device in the method 200 in Figure 2 or the method 400 in Figure 4.

In a possible implementation, the transceiver unit 1100 and the processing unit 1200 may be respectively configured to:

The processing unit 1200 is used to determine a first resource, which corresponds to some time units in a first time domain unit in the time domain, and the first time domain unit includes at least one time unit, wherein the number of time units corresponding to the first resource is less than the number of time units included in the first time domain unit.

The transceiver unit 1100 is configured to send a common message on the first resource.

Optionally, the frequency domain resources occupied by the first resource are determined based on one or more of the following: the transmission block TB size corresponding to the common message, the number of time units occupied by the demodulation reference signal DMRS, the number of time units occupied by the physical downlink control channel, and the number of time units occupied by the physical downlink data channel.

Optionally, the frequency domain resources occupied by the first resource include multiple frequency domain units, and the multiple frequency domain units occupy the maximum number in the control resource set CORESET.

Optionally, the processing unit 1200 is further used to determine a second resource based on the first resource, where the second resource overlaps with the first resource in the time domain, and the second resource is used for data transmission.

Optionally, the common message is any one of the following: a paging message, remaining minimum system information RMSI, and a system information block SIB.

Specifically, the communication device 1000 may correspond to the network device in the method 400 according to the embodiment of the present application, and the communication device 1000 may include a unit for executing the method executed by the network device in the method 400 in Figure 4. In addition, each unit in the communication device 1000 and the above-mentioned other operations or functions are respectively for implementing the corresponding process of the network device in the method 400 in Figure 4.

In a possible implementation, the transceiver unit 1100 and the processing unit 1200 may be respectively configured to:

The processing unit 1200 is used to determine the number of time windows within a system message broadcast period; and is also used to determine the number of beams in each time window based on the number of time windows.

The transceiver unit 1100 is used to send a system message using the beam.

Optionally, the number of time windows satisfies the following formula:

N = rmsiPeriod/scanUnit;

N represents the number of time windows, rmsiPeriod represents the system message broadcast period, and scanUnit represents the beam scanning period.

Optionally, the number of beams satisfies the following formula:

x = CEIL(ssbNum/N);

x represents the number of beams in each time window, CEIL represents rounding up, ssbNum represents the total number of beams, and N represents the number of time windows.

It should be understood that the specific process of each unit executing the above corresponding steps has been described in detail in the above method embodiment, and for the sake of brevity, it will not be repeated here.

It should also be understood that when the communication device 1000 is a base station, the transceiver unit 1100 in the communication device 1000 may correspond to the radio frequency unit 3012 and the antenna 3011 in the network device 3000 shown in FIG. 7 , and the processing unit 1100 in the communication device 1000 may be implemented by at least one processor, for example, may correspond to the processor 3022 in the network device 3000 shown in FIG. 7 .

It should also be understood that when the communication device 1000 is a chip configured in a network device, the transceiver unit 1200 in the communication device 1000 can be an input/output interface circuit.

Optionally, the communication device 1000 further includes a storage unit, which can be used to store instructions or data, and the processing unit can call the instructions or data stored in the storage unit to implement corresponding operations. The storage unit can be implemented by at least one memory, for example, it can correspond to the memory 3014 in the network device 3000 in Figure 7.

FIG7 is a schematic diagram of the structure of a network device provided in an embodiment of the present application, for example, a schematic diagram of the structure of a base station 3000. The base station 3000 can be applied to the system shown in FIG1 to perform the functions of the network device in the above method embodiment. As shown in the figure, the base station 3000 may include one or more DUs 3010 and one or more CUs 3020. CU 3020 can communicate with the next generation core network (NG core, NC). The DU 3010 may include at least one antenna 3011, at least one radio unit 3012, at least one processor 3013 and at least one memory 3014. The DU 3010 part is mainly used for receiving and transmitting radio frequency signals and converting radio frequency signals to baseband signals, as well as partial baseband processing. CU3020 may include at least one processor 3022 and at least one memory 3021. CU 3020 and DU 3010 can communicate through an interface, wherein the control plane (CP) interface may be Fs-C, such as F1-C, and the user plane (UP) interface may be Fs-U, such as F1-U.

The CU 3020 part is mainly used for baseband processing, controlling the base station, etc. The DU 3010 and CU 3020 can be physically set together or physically separated, that is, a distributed base station. The CU 3020 is the control center of the base station, which can also be called a processing unit, and is mainly used to complete the baseband processing function. For example, the CU 3020 can be used to control the base station to execute the operation process of the network device in the above method embodiment.

Specifically, the baseband processing on the CU and DU can be divided according to the protocol layer of the wireless network, for example, the functions of the PDCP layer and above protocol layers are set in the CU, and the functions of the protocol layers below the PDCP, such as the RLC layer and the MAC layer, are set in the DU. For another example, the CU implements the functions of the RRC layer and the PDCP layer, and the DU implements the functions of the RLC layer, the MAC layer, and the PHY layer.

In addition, optionally, the base station 3000 may include one or more radio frequency units (RU), one or more DUs and one or more CUs. The DU may include at least one processor 3013 and at least one memory 3014, the RU may include at least one antenna 3011 and at least one radio frequency unit 3012, and the CU may include at least one processor 3022 and at least one memory 3021.

In one example, the CU 3020 may be composed of one or more boards, and the multiple boards may jointly support a wireless access network (such as a 5G network) with a single access indication, or may respectively support wireless access networks with different access standards (such as an LTE network, a 5G network, or other networks). The memory 3021 and the processor 3022 may serve one or more boards. In other words, a memory and a processor may be separately set on each board. It may also be that multiple boards share the same memory and processor. In addition, necessary circuits may be set on each board. The DU 3010 may be composed of one or more boards, and the multiple boards may jointly support a wireless access network (such as a 5G network) with a single access indication, or may respectively support wireless access networks with different access standards (such as an LTE network, a 5G network, or other networks). The memory 3014 and the processor 3013 may serve one or more boards. In other words, a memory and a processor may be separately set on each board. It may also be that multiple boards share the same memory and processor. In addition, necessary circuits may also be set on each board.

It should be understood that the base station 3000 shown in FIG7 can implement various processes involving network devices in the method embodiments shown in FIG2 or FIG4. The operations and/or functions of each module in the base station 3000 are respectively to implement the corresponding processes in the above method embodiments. For details, please refer to the description in the above method embodiments. To avoid repetition, the detailed description is appropriately omitted here.

It should be understood that the base station 3000 shown in FIG. 7 is only a possible architecture of a network device and should not constitute any limitation to the present application. The method provided in the present application can be applied to access network devices of other architectures. For example, access network devices including CU, DU and AAU, etc. The present application does not limit the specific architecture of the network device.

According to the method provided in the embodiment of the present application, the present application also provides a computer program product, which includes: computer program code, when the computer program code runs on a computer, the computer executes the method on the network device side in the embodiment shown in Figure 2 or Figure 4.

According to the method provided in the embodiment of the present application, the present application also provides a computer-readable medium, which stores a program code. When the program code runs on a computer, the computer executes the method on the network device side in the embodiment shown in Figure 2 or Figure 4.

An embodiment of the present application also provides a processing device, including a processor and an interface circuit, which are coupled to the interface circuit; the processor is used to execute the communication method in any of the above method embodiments.

Based on the same technical concept, the embodiment of the present application also provides a device 800, and the structure and function of the device 800 will be specifically described below in conjunction with the schematic block diagram Figure 8 of the device 800. The device may include at least one processor 801 and an interface circuit 802. When the program instructions involved are executed in the at least one processor 801, the device 800 can implement the communication method provided by any of the aforementioned embodiments and any possible design thereof. The interface circuit 802 can be used to receive program instructions and transmit them to the processor, or the interface circuit 802 can be used for the device 800 to communicate and interact with other communication devices, such as interactive control signaling and/or business data. The interface circuit 802 can be a code and/or data read and write interface circuit, or the interface circuit 802 can be a signal transmission interface circuit between a communication processor and a transceiver. Optionally, the communication device 800 may also include at least one memory 803, which can be used to store the required program instructions and/or data involved. Optionally, the device 800 may further include a power supply circuit 804, which may be used to supply power to the processor 801. The power supply circuit 804 may be located in the same chip as the processor 801, or in another chip other than the chip where the processor 801 is located. Optionally, the device 800 may further include a bus 805, and various parts of the device 800 may be interconnected through the bus 805.

The power supply circuit described in the embodiments of the present application includes but is not limited to at least one of the following: a power supply line, a power supply subsystem, a power management chip, a power consumption management processor or a power consumption management control circuit.

The transceiver, interface circuit, or transceiver described in the embodiments of the present application may include a separate transmitter and/or a separate receiver, or may be an integrated transmitter and receiver. The transceiver, interface circuit, or transceiver may operate under the instruction of a corresponding processor. Optionally, the transmitter may correspond to a transmitter in a physical device, and the receiver may correspond to a receiver in a physical device.

The communication devices in the above-mentioned various device embodiments and the terminal devices and network devices in the method embodiments are completely corresponding, and the corresponding modules or units perform the corresponding steps. For example, the communication unit (transceiver) performs the steps of receiving or sending in the method embodiment, and other steps except sending and receiving can be performed by the processing unit (processor). The functions of the specific units can refer to the corresponding method embodiments. Among them, the processor can be one or more.

Those skilled in the art may also understand that the various illustrative logical blocks and steps listed in the embodiments of the present application may be implemented by electronic hardware, computer software, or a combination of the two. Whether such functions are implemented by hardware or software depends on the specific application and the design requirements of the entire system. Those skilled in the art may use various methods to implement the functions described for each specific application, but such implementation should not be understood as exceeding the scope of protection of the embodiments of the present application.

It should be understood that the processor in the embodiment of the present application can be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiment can be completed by the hardware integrated logic circuit or software instructions in the processor. The above processor can be a general processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (application specific integrated circuit, ASIC), a field programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and can also be a system chip (system on chip, SoC), a central processor unit (central processor unit, CPU), a network processor (network processor, NP), a digital signal processing circuit (digital signal processor, DSP), a microcontroller (micro controller unit, MCU), a programmable controller (programmable logic device, PLD) or other integrated chips. The disclosed methods, steps and logic block diagrams in the embodiments of the present application can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, etc. The storage medium is located in a memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

The technology described in this application can be implemented in various ways. For example, these technologies can be implemented in a combination of hardware, software or hardware. For hardware implementation, the processing unit used to perform these technologies at a communication device (e.g., a base station, a terminal, a network entity, or a chip) can be implemented in one or more general-purpose processors, DSPs, digital signal processing devices, ASICs, programmable logic devices, FPGAs, or other programmable logic devices, discrete gates or transistor logic, discrete hardware components, or any combination thereof. The general-purpose processor can be a microprocessor, and optionally, the general-purpose processor can also be any traditional processor, controller, microcontroller or state machine. The processor can also be implemented by a combination of computing devices, such as a digital signal processor and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a digital signal processor core, or any other similar configuration to implement.

Optionally, the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrations. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

It should be understood that in the present application, "when", "if" and "if" all mean that the UE or base station will take corresponding actions under certain objective circumstances. It is not a time limit, and it does not require the UE or base station to make judgments when implementing it, nor does it mean that there are other limitations.

Optional for those skilled in the art: Various digital numbers such as first and second involved in this application are only for the convenience of description and are not used to limit the scope of the embodiments of the present application, and also indicate the order of precedence.

In this application, elements expressed in the singular are intended to mean "one or more" rather than "one and only one", unless otherwise specified. In this application, "at least one" is intended to mean "one or more", and "more than one" is intended to mean "two or more", unless otherwise specified.

In addition, the terms "system" and "network" are often used interchangeably in this article. The term "and/or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone. A can be singular or plural, and B can be singular or plural.

The character “/” generally indicates that the previous and next associated objects are in an “or” relationship.

In this document, the term "at least one of..." or "at least one of..." means all or any combination of the listed items. For example, "at least one of A, B, and C" may mean: A exists alone, B exists alone, C exists alone, A and B exist at the same time, B and C exist at the same time, and A, B, and C exist at the same time, where A may be singular or plural, B may be singular or plural, and C may be singular or plural.

It should be understood that in each embodiment of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and/or other information.

The corresponding relationships shown in each table in the present application can be configured or predefined. The values of the information in each table are only examples and can be configured as other values, which are not limited by the present application. When configuring the corresponding relationship between the information and each parameter, it is not necessarily required to configure all the corresponding relationships illustrated in each table. For example, in the table in the present application, the corresponding relationships shown in some rows may not be configured. For another example, appropriate deformation adjustments can be made based on the above table, such as splitting, merging, etc. The names of the parameters shown in the titles in the above tables can also use other names that can be understood by the communication device, and the values or representations of the parameters can also be other values or representations that can be understood by the communication device. When implementing the above tables, other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables.

Here, for unified explanation, optionally, the "predefined" in the embodiment of the present application is defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned. Optionally, the configuration in the embodiment of the present application is notified through RRC signaling, MAC signaling, and physical layer information, wherein the physical layer information can be transmitted through PDCCH or PDSCH.

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

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.

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 through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

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.

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.

If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for 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 methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (14)

1. A method of communication, comprising:

The network equipment determines first resources, wherein the first resources correspond to part of time units in a first time domain unit in a time domain, the first time domain unit comprises at least one time unit, the number of the time units corresponding to the first resources is smaller than the number of the time units included in the first time domain unit, the time domain unit comprises a time slot, and the time units comprise symbol symbols;

the network equipment sends a public message on the first resource;

Wherein the frequency domain resources occupied by the first resources are determined based on one or more of: the size of the transmission block TB corresponding to the public message, the number of time units occupied by the demodulation reference signal DMRS, the number of time units occupied by the physical downlink control channel and the number of time units occupied by the physical downlink data channel; the frequency domain resources occupied by the first resource include a plurality of frequency domain units, and the plurality of frequency domain units occupy the maximum number in the control resource set CORESET.

2. The method according to claim 1, wherein the method further comprises:

And the network equipment determines a second resource according to the first resource, wherein the second resource overlaps with the first resource in the time domain, and the second resource is used for data transmission.

3. The method of claim 1, wherein the common message is any one of the following: paging message, minimum system information RMSI remaining, system information block SIB.

4. The method according to claim 1, wherein the method further comprises:

The network equipment determines the number of time windows in a system message broadcasting period;

The network equipment determines the number of beams in each time window based on the number of the time windows;

The network device transmits a system message using the beam.

5. The method of claim 4, wherein the number of time windows satisfies the following equation:

N＝rmsiPeriod/scanUnit；

n represents the number of the time windows, rmsiPeriod represents the system message broadcast period, and scanUnit represents the beam scanning period.

6. The method according to claim 4 or 5, wherein the number of beams satisfies the following formula:

x＝CEIL(ssbNum/N)；

x represents the number of beams in each time window, CEIL represents an upward rounding, ssbNum represents the total number of beams, and N represents the number of time windows.

7. A communication device, comprising:

A processing unit, configured to determine a first resource, where the first resource corresponds to a part of time units in a first time domain unit in a time domain, where the first time domain unit includes at least one time unit, where the number of time units corresponding to the first resource is smaller than the number of time units included in the first time domain unit, where the time domain unit includes a slot, and the time unit includes a symbol;

A transceiver unit, configured to send a common message on the first resource;

Wherein the frequency domain resources occupied by the first resources are determined based on one or more of: the size of the transmission block TB corresponding to the public message, the number of time units occupied by the demodulation reference signal DMRS, the number of time units occupied by the physical downlink control channel and the number of time units occupied by the physical downlink data channel; the frequency domain resources occupied by the first resource include a plurality of frequency domain units, and the plurality of frequency domain units occupy the maximum number in the control resource set CORESET.

8. The apparatus of claim 7, wherein the processing unit is further configured to determine a second resource from the first resource, the second resource overlapping the first resource in a time domain, the second resource being used for data transmission.

9. The apparatus of claim 7, wherein the common message is any one of: paging message, minimum system information RMSI remaining, system information block SIB.

10. The apparatus of claim 7, wherein the device comprises a plurality of sensors,

The processing unit is also used for determining the number of time windows in the broadcasting period of the system message; the method is also used for determining the number of beams in each time window based on the number of the time windows;

The transceiver unit is further configured to send a system message using the beam.

11. The apparatus of claim 10, wherein the number of time windows satisfies the following equation:

N＝rmsiPeriod/scanUnit；

n represents the number of the time windows, rmsiPeriod represents the system message broadcast period, and scanUnit represents the beam scanning period.

12. The apparatus according to claim 10 or 11, wherein the number of beams satisfies the following equation:

x＝CEIL(ssbNum/N)；

x represents the number of beams in each time window, CEIL represents an upward rounding, ssbNum represents the total number of beams, and N represents the number of time windows.

13. A communication device, comprising:

A processor for executing computer instructions stored in a memory to cause the apparatus to perform the method of any one of claims 1 to 3 or to perform the method of any one of claims 4 to 6.

14. A computer storage medium comprising a program or instructions which, when executed, performs the method of any one of claims 1 to 3 or the method of any one of claims 4 to 6.