CN114365441B

CN114365441B - Communication method and communication device

Info

Publication number: CN114365441B
Application number: CN201980100256.0A
Authority: CN
Inventors: 余国华
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2024-07-23
Anticipated expiration: 2039-12-11
Also published as: CN114365441A; WO2021114148A1

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

Communication method and communication device

Technical Field

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

Background

The system message broadcasting function and the paging function are two basic functions of a wireless communication system. For the system message broadcasting function, the base station broadcasts the system message periodically according to a set period. For the paging function, the base station calculates paging message issuing time according to the set paging parameter and the user equipment identifier (user equipment identity, UEID). The system message and the paging message may be collectively referred to as a common message, and the transmission timing of both in the time domain is determined, so that they cannot be combined and aggregated, thereby causing the background noise energy consumption of the base station to be unavoidable.

In the prior art, a common message needs to be sent by scanning beams, one beam occupying one slot. Thus, the base station needs to transmit in the entire time slot, which results in greater overhead for the base station. This way of sending common messages is detrimental to the base station power saving. Therefore, there is a need to propose a method for saving the overhead.

Disclosure of Invention

The application provides a communication method and a communication device, which are beneficial to improving the energy saving benefit of network equipment.

In a first aspect, a communication method is provided, including: 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 that of the time units included in the first time domain unit; the network device sends a common message at the first resource. Illustratively, the first time domain unit is a slot and the time unit is a symbol. In the embodiment of the application, because the first resource determined by the network equipment does not occupy all time units in the first time domain unit in the time domain, the network equipment can turn off the unoccupied time units in the first time domain unit, thereby improving the energy saving benefit of the network equipment.

In the embodiment of the application, optionally, the network device schedules the symbol occupation of the public message according to the principle of 'frequency expansion domain and time compression domain', and by reducing the occupation of the public message in the time domain, for example, the number of the symbols occupied by the public message in the time slot is reduced, the unoccupied symbols can be turned off, thereby being beneficial to improving the idle time energy saving benefit.

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

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

For example, the network device may determine the maximum number of RBs occupied by the first resource in CORESET based on the TB size corresponding to the common message, the number of symbols for the demodulation reference signal DMRS, the number of symbols occupied by the physical downlink shared channel (physical downlink SHARED CHANNEL, PDSCH), 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 under the condition of ensuring that the first resource occupies the maximum number of RBs in the frequency domain, so that fewer symbols can be occupied, and energy saving benefit is realized.

Optionally, the method further comprises: the network device determines a second resource according to the first resource, the second resource overlaps with the first resource in a time domain, and the second resource is used for data transmission. The second resource may be used for transmitting traffic data or control signaling data, for example. For example, the first resource occupies 4 symbols (e.g., symbols 0-3) in one slot in the time domain, and the second resource also occupies symbols 0-4 in the slot in the time domain. For example, the first resource occupies 4 symbols (e.g., symbols 0-3) in one slot in the time domain, and the second resource occupies symbols 0-2 in the slot in the time domain.

Alternatively, the network device may determine a plurality of first resources. Accordingly, 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 common message is any one or any several of the following: paging message, minimum system information remaining (REMAINING MINIMUM SYSTEM INFORMATION, RMSI), system information block (system information block, SIB), master information block (master information block, MIB).

In a second aspect, a communication method is provided, including: firstly, the network equipment determines the number of time windows in a system message broadcasting period; then, the network equipment determines the number of beams in each time window based on the number of the time windows; finally, the network device uses the beam to send a system message. Wherein each beam occupies a time domain element.

In the embodiment of the application, the network equipment can hash and distribute a plurality of time domain units for sending the system message in the broadcasting period of the system message or discretize the time domain units so as to facilitate the convergence of data to the time domain units corresponding to the system message, so that the second resource for carrying out data transmission is converged to the time domain occupied by the first resource, thereby not affecting the user transmission delay in light load, but also being beneficial to improving the energy-saving gain benefit in busy hour.

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

In one possible implementation, the number of time windows satisfies the following equation:

N＝rmsiPeriod/scanUnit；

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

In one possible implementation, the number of beams transmitted in each time window satisfies the following equation:

x＝CEIL(ssbNum/N)；

x represents the number of beams to be transmitted in each time window, CEIL represents an upward rounding, ssbNum represents the total number of beams, and N represents the number of time windows in which a common message is transmitted.

Optionally, if the network device hashes or discretizes time domain units (such as time slots) corresponding to the plurality of resources used for sending the system message in the broadcasting period of the system message, the determination of the time domain resources occupied by the plurality of second resources also needs to refer to the time domain units corresponding to the plurality of discretized resources. That is, for the case of "time slot discretization", the time domain resources occupied by the plurality of second resources may be the same as the time domain units occupied by the plurality of resources for transmitting the system message.

In a third aspect, there is provided a communication device comprising individual modules or units for performing the method in any one of the possible implementations of the first or second aspects.

In a fourth aspect, a communication device is provided that includes a processor. The processor is coupled to the memory and operable to execute instructions in the memory to implement the method of any one of the possible implementations of the first or second aspects. Optionally, the communication device further comprises a memory. Optionally, the communication device further comprises a communication interface, and the processor is coupled to the communication interface.

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

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

In a fifth aspect, there is provided a processor comprising: input circuit, output circuit and processing circuit. The processing circuit is configured to receive signals via the input circuit and to transmit signals via the output circuit, such that the processor performs the method of any one of the possible implementations of the first or second aspect.

In a specific implementation process, the processor may be a chip, the input circuit may be an input pin, the output circuit may be an output pin, and the processing circuit may be a transistor, a gate circuit, a trigger, various logic circuits, and the like. The input signal received by the input circuit may be received and input by, for example and without limitation, a receiver, the output signal may be output by, for example and without limitation, a transmitter and transmitted by a transmitter, and the input circuit and the output circuit may be the same circuit, which functions as the input circuit and the output circuit, respectively, at different times. The embodiment of the application does not limit the specific implementation modes of the processor and various circuits.

In a sixth aspect, an apparatus is provided that includes a processor and a memory. The processor is configured to read instructions stored in the memory and is configured to receive signals via the receiver and to transmit signals via the transmitter to perform the method of any one of the possible implementations of the first or second aspect.

Optionally, the processor is one or more, and the memory is one or more.

Alternatively, the memory may be integrated with the processor or the memory may be separate from the processor.

In a specific implementation process, the memory may be a non-transient (non-transitory) memory, for example, a Read Only Memory (ROM), which may be integrated on the same chip as the processor, or may be separately disposed on different chips.

It should be appreciated that the related data interaction process, for example, transmitting the indication information, may be a process of outputting the indication information from the processor, and the receiving the capability information may be a process of receiving the input capability information by the processor. Specifically, the data output by the processing may be output to the transmitter, and the input data received by the processor may be from the receiver. Wherein the transmitter and receiver may be collectively referred to as a transceiver.

The apparatus in the sixth aspect may be a chip, and the processor may be implemented by hardware or software, and when implemented by hardware, the processor may be a logic circuit, an integrated circuit, or the like; when implemented in software, the processor may be a general-purpose processor, implemented by reading software code stored in a memory, which may be integrated in the processor, or may reside outside the processor, and exist separately.

In a seventh aspect, there is provided a computer program product comprising: a computer program (which may also be referred to as code, or instructions) which, when executed, causes a computer to perform the method of any one of the possible implementations of the first or second aspects described above.

In an eighth aspect, a computer readable medium is provided, which stores a computer program (which may also be referred to as code, or instructions) which, when run on a computer, causes the computer to perform the method of any one of the possible implementations of the first or second aspects.

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

Drawings

FIG. 1 is a schematic diagram of a system architecture to which embodiments of the application are applied;

FIG. 2 is a schematic interaction diagram of a communication method to which embodiments of the application are applied;

FIG. 3 is a schematic diagram of one example of a first resource to which embodiments of the application are applied;

FIG. 4 is a schematic flow chart of another communication method to which embodiments of the present application are applied;

FIG. 5 is a schematic diagram of a time slot hash using an embodiment of the present application;

FIG. 6 is a schematic block diagram of a communication device provided by an embodiment of the present application;

fig. 7 is a schematic structural diagram of a network device according to an embodiment of the present application;

fig. 8 is a schematic block diagram of another communication device of an embodiment of the present application.

Detailed Description

The technical scheme of the application will be described below with reference to the accompanying drawings.

In an embodiment of the present application, optionally, "a plurality" is "at least two" or "two or more"; the term "plurality" is "at least two terms" or "two or more terms".

The technical scheme of the embodiment of the application can be applied to various communication systems, such as: long term evolution (long term evolution, LTE) systems, fifth generation (5th generation,5G) communication systems, new Radio (NR) systems, and future evolution communication systems.

Fig. 1 is a schematic diagram of the architecture of a communication system to which embodiments of the present application may be applied. 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 (e.g., terminal device 130 and terminal device 140 in fig. 1). The terminal equipment is connected with the access network equipment in a wireless mode, and the access network equipment is connected with the core network equipment in a wireless or wired mode. The core network device and the access network device may be separate physical devices, or the functions of the core network device and the logic 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 one physical device. The terminal device may be fixed in position or may be movable. Fig. 1 is only a schematic diagram, and other network devices may be further included in the communication system, for example, a wireless relay device and a wireless backhaul device may also be included, which are not shown in fig. 1. The embodiment of the application does not limit the number of the core network equipment, the access network equipment and the terminal equipment included in the communication system.

The access network device is an access device that the terminal device accesses to the communication system in a wireless manner, and may be a radio access network (radio access network, RAN) device, a base station NodeB, an evolved base station (evloved 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 (WIRELESS FIDELITY, wi-Fi) system, an antenna panel or a group (including multiple antenna panels) of base stations in the 5G system, or may also be a network node that forms the gNB or the transmission point, such as a baseband unit (BBU), a centralized unit (centralized unit, CU), or a Distributed Unit (DU), or the like. The specific technology and specific device configuration adopted by the access network device in the embodiment of the application are not limited. In some deployments, the gNB may include CUs and DUs. The gNB may also include an active antenna unit (ACTIVE ANTENNA units, AAU). The CU implements part of the functionality of the gNB and the DU implements part of the functionality of the gNB. For example, the CU is responsible for handling non-real time protocols and services to implement the functions of the radio resource control (radio resource control, RRC), packet data convergence layer protocol (PACKET DATA convergence protocol, PDCP) layer. The DUs are responsible for handling physical layer protocols and real-time services to implement the functions of a radio link control (radio link control, RLC) layer, a Medium Access Control (MAC) layer, and a Physical (PHY) layer. The AAU realizes part of physical layer processing function, radio frequency processing and related functions of the active antenna. Since the information of the RRC layer may eventually become information of the PHY layer or be converted from the information of the PHY layer, under this architecture, higher layer signaling, such as RRC layer signaling, may also be considered to be transmitted by DUs or by DUs and AAUs. Alternatively, the network device may be a device including one or more of a CU node, a DU node, and an AAU node. In addition, the CU may be used as a network device in an access network, or may be used as a network device in a Core Network (CN), which is not limited by the present application.

The terminal device may also be referred to as a terminal, a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), or the like. The terminal device may be a mobile phone, a tablet (Pad), a computer with wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned (SELF DRIVING), a wireless terminal in teleoperation (remote medical surgery), a wireless terminal in smart grid (SMART GRID), a wireless terminal in transportation safety (transportation safety), a wireless terminal in smart city (SMART CITY), a wireless terminal in smart home (smart home), etc. The embodiment of the application does not limit the specific technology and the specific equipment form adopted by the terminal equipment.

The access network equipment and the terminal equipment can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; the device can be deployed on the water surface; but also on aerial planes, balloons and satellites. The embodiment of the application does not limit the application scene of the access network equipment and the terminal equipment.

The embodiment of the application can be suitable for 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 transmitting device is a terminal device, and the corresponding receiving device is an access network device. For D2D signal transmission, the transmitting device is a terminal device and the corresponding receiving device is a terminal device.

Communication between the access network device and the terminal device and between the terminal device and the terminal device can be performed through a licensed spectrum (licensed spectrum), communication can be performed through an unlicensed spectrum (unlicensed spectrum), and communication can be performed through both the licensed spectrum and the unlicensed spectrum. Communication between the access network device and the terminal device and between the terminal device and the terminal device can be performed through a frequency spectrum of 6 gigahertz (GHz) or less, communication can be performed through a frequency spectrum of 6G or more, and communication can be performed by using a frequency spectrum of 6G or less and a frequency spectrum of 6G or more simultaneously. The embodiment of the application does not limit the spectrum resources used between the access network equipment and the terminal equipment.

In the embodiment of the present application, if not specifically described, the network devices refer to access network devices. The terminal device or network device includes a hardware layer, an operating system layer running on top of the hardware layer, and an application layer running on top of the operating system layer. The hardware layer includes hardware such as a central processing unit (central processing unit, CPU), a memory management unit (memory management unit, MMU), and a memory (also referred to as a main memory). The operating system may be any one or more computer operating systems that implement business processes through processes (processes), 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 comprises applications such as a browser, an address book, word processing software, instant messaging software and the like. Further, the embodiment of the present application is not particularly limited to the specific structure of the execution body of the method provided in the embodiment of the present application, as long as the communication can be performed by the method provided in the embodiment of the present application by running the program recorded with the code of the method provided in the embodiment of the present application, for example, the execution body of the method provided in the embodiment of the present application may be a terminal device or a network device, or a functional module (for example, a processor, a chip, or a chip system, etc.) in the terminal device or the network device that can call the program and execute the program.

Furthermore, various aspects or features of the application may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used herein encompasses a computer program accessible from any computer-readable device, carrier, or media. For example, computer-readable media can include, but are not limited to, magnetic storage devices (e.g., hard disk, floppy disk, or magnetic strips, etc.), optical disks (e.g., compact disk, CD, digital versatile disk, DIGITAL VERSATILE DISC, DVD, etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory, EPROM), cards, sticks, key drives, etc. Additionally, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" can include, without being limited to, wireless channels and various other media capable of storing, containing, and/or carrying instruction(s) and/or data.

The resources (sometimes referred to as physical resources) in embodiments of the present application may comprise one or more of time domain resources, frequency domain resources, code domain resources, or spatial domain resources. For example, the time domain resource included in the physical resource may include at least one frame, at least one subframe (sub-frame), at least one slot (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 (carrier), at least one unit carrier (componont carrier, CC), at least one bandwidth part (BWP), at least one resource block group (resource block group, RBG), at least one physical resource block group (PRG), at least one Resource Block (RB), or at least one subcarrier (sub-carrier, SC), and the like. 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, or the like.

The time domain unit may be other time domain units such as a frame, a subframe, a slot (slot), a micro slot (or mini slot), or a symbol. A minislot is a time domain unit having a time domain length less than a time slot. One frame has a time length of 10 milliseconds (millisecond, ms) and includes 10 subframes, each of which corresponds to a time length of 1ms. One 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 herein may be orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) symbols. A minislot comprises a number of time domain symbols less than 14, such as 2 or4 or 7, etc. Or a time slot may include 7 time domain symbols, and a minislot includes less than 7 time domain symbols, such as 2 or4, and the specific value is not limited.

At present, when the network device schedules the public message to be sent on a certain wave beam, all symbols (symbols) of a corresponding time slot are occupied, namely the network device occupies wide time domain and occupies narrow frequency domain, so that the network device cannot turn off part of symbols in the corresponding time slot, and larger energy-saving benefit cannot be obtained. Here, "off" means that transmission and reception are not performed, and the device is in a sleep state.

Fig. 2 is a schematic interaction diagram of a communication method 200 according to an embodiment of the application. Alternatively, the terminal device in fig. 2 may be the terminal device in fig. 1 (such as the terminal device 130 or the terminal device 140), or may refer to a device in the terminal device (such as a processor, a chip, or a chip system, etc.). The network device may be access network device 120 of fig. 1, or may refer to a device (e.g., a processor, a chip, or a system-on-a-chip, etc.) in the network device. It is further understood that part or all of the information interacted between the terminal device and the network device in fig. 2 may be carried in an existing message, channel, signal or signaling, or may be a newly defined message, channel, signal or signaling, which is not limited in particular. As shown in fig. 2, the method 200 includes:

S201, the network equipment determines a first resource, wherein the first resource corresponds 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 resource is smaller than the number of the time units included in the first time domain unit.

The first time domain unit may refer to the previous description of the time domain unit. Alternatively, the time units are concepts that are less granular than the first time domain units. The first time domain unit may include at least one time unit. For example, taking a first time domain unit as a slot and a time unit as a symbol as an example, assuming that a slot includes 14 symbols, 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 may perform a shutdown process on unoccupied symbols to achieve power savings.

S202, the network device sends a common message at the first resource.

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

Alternatively, the first resource herein may be one or more. For example, if the network device needs to occupy multiple first resources to send the common message, the number of time units corresponding to each first resource is smaller than the number of time units included in the first time domain unit, so that the resources for sending the common message occupy as much of the frequency domain as possible, and occupy as little of the time domain as possible, so as to turn off unused time units (such as symbols).

In the embodiment of the application, the network equipment schedules the symbol occupation of the public message according to the principle of 'frequency expansion domain and time compression domain', and the unoccupied symbols can be turned off by reducing the occupation of the public message on the time domain, for example, reducing the number of the symbols occupied by the public message in a time slot, thereby being beneficial to improving the energy saving benefit 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, which may be implemented in different manners, and the embodiment of the present application is not limited thereto.

In an alternative implementation manner, the network device may determine the first resource according to the order of the first time domain and the second frequency domain, so as to implement that 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. The network device sets the number of time units corresponding to the first resource, so that 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. For example, taking an example that one slot includes 14 symbols, the network device sets that the first resources correspond to 5 symbols in a time domain, and turns off the remaining 9 symbols, and assuming that the network device knows that 4 RBs (respectively RB0, RB1, RB2, and RB 3) need to be occupied in a frequency domain corresponding to each of the 5 symbols through calculation, the network device determines that the first resources occupy 5*4 =20 RBs altogether, and of course, only the embodiment of the present application is described by taking the case that the number of symbols corresponding to the first resources is 5 symbols as an example, and the network device can increase the number of symbols corresponding to the first resources if the 5 symbols do not meet the transmission requirement. Optionally, at least 3 symbols corresponding to the first resource set by the network device, where the 3 symbols are occupied by the PDCCH, the PDSCH, and the DMRS respectively.

In another optional implementation manner, the network device determines the first resource through the sequence of the first frequency domain and the second time domain, so that 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. 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, for example, the frequency domain unit of the control resource set CORESET, for example, the maximum number of RBs that can be occupied on symbol 0 is 16 (respectively RB0, RB1, …, RB 15), and then sequentially occupies the maximum number of RBs on each symbol, for example, the maximum number of RBs occupied on each of symbols 1 to 4 is 16 (respectively RB0, RB1, …, RB 15), so that the number of symbols occupied by the first resource in the time domain is 5. Alternatively, RB is only used as an example for illustration, but the embodiment of the present application is not limited thereto. Indeed, the RB may be replaced with other possible frequency domain units, as is optional to those skilled in the art.

Optionally, the network device may determine, according to the size of the common message, a first resource, where a time domain resource and a frequency domain resource occupied by the first resource satisfy the following conditions: the number of time units corresponding to the first resource is determined under the condition that the frequency domain resource occupied by the first resource occupies a plurality of frequency domain units according to a certain condition.

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

Optionally, the frequency domain resource occupied by the first resource occupies a plurality of frequency domain units according to a certain condition, including: the frequency domain resource occupies the largest number of frequency domain units in the control resource set CORESET; or the frequency domain resource maximizes the occupation of the frequency domain unit in CORESET. For example, the frequency domain unit may be RB.

For example, the network device scans and transmits the common message according to the synchronization signal blocks (synchronization signal block, SSB) beams, each SSB beam occupies one time slot, and occupies as much of the frequency domain as possible and as little of the time domain as possible in each time slot according to the principle of "spread-spectrum domain, compressed-time domain". Optionally, the "spread spectrum domain, compressed time domain" is: the occupied frequency domain unit is maximized in the frequency domain, and the symbol occupation is reduced as much as possible in the time domain. In this way, the number of symbols occupied by the common message in the slot can be reduced. The network device adopts the principle to schedule the resource for sending the public message, and for unoccupied symbols in the time slot, the network device can switch off the symbol level, thereby obtaining energy-saving benefits in idle time and achieving the purpose of energy saving.

Illustratively, taking the case that the time units are symbols, the determining procedure of the number of time units corresponding to the first resource in the time domain may be understood as "common message symbol aggregation".

Optionally, the network device determines the frequency domain resources (e.g. the number of resource blocks RBs) occupied by the first resource based on one or more of: the size of the transport block TB corresponding to the common message, the number of time units (for example, 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. And under the condition that the frequency domain resource occupies a plurality of RBs in one control resource set CORESET to the maximum extent, the network equipment determines the number of time units corresponding to the first resource.

For example, as an alternative implementation, the network device determines the first resource by:

1. Obtaining the size of a transmission block TB of a public message, wherein the size comprises a message payload and a cyclic redundancy check (cyclicredundancy check, CRC) check bit, and the TBSize is recorded;

2. the modulation and coding scheme (modulation and coding scheme, MCS) for scheduling the common message is set (typically to 0).

The MCS determines the modulation order (modulation order) (the adjustment order may be denoted as Qm), the target code rate (the target code rate may be denoted as R) and the spectral efficiency (SPECTRAL EFFICIENCY, SE), obtained by querying a Table (Table) version 5.1.3.1-2 of the third generation partnership project (the 3rd generation partnership project,3GPP) technical standard (TECHNICAL STANDARD, TS) 38.214V15.7.0 (Table 5.1.3.1-2 is the second Table of chapter number 5.1.3.1);

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×rb" that the payload needs to occupy is calculated according to the following formula, and the number of "symbols×rb" that the payload needs to occupy is denoted as payload_symbol_rb_num, where the payload_symbol_rb_num satisfies the following formula:

payload_symbol_rb_num＝TBSize/(12*SE)

4. The maximum number of available RBs for the common message CORESET is coreset0_max_rb (typically set by cell configuration), and the number of symbols that the payload needs to occupy is calculated as payload_symbol_num according to the following formula: payload_symbol_num=payload_symbol_rb_num/coreset 0_max_rb

5. Calculating the total symbol number occupied by PDSCH: the symbol occupation of PDSCH and PDSCH DMRS needs to be considered comprehensively, and the total symbol number occupied by PDSCH needs to be completely included PDSCH DMRS. PDSCH DMRS referring to version 3GPP TS38.211 V15.3.0 of Table 7.4.1.1.2-3 (Table 7.4.1.1.2-3 is the third Table of chapter number 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 chapter number Table7.4.1.1.2), taking PDSCH MAPPING TYPE A and PDSCH DMRS single symbol occupation as examples, the alternative calculation method is as follows:

6. calculating RB occupied by PDSCH:

rb_num=payload_symbol_rb_num/symbol_num is optionally obtained by generating a set of static table query by using the number of RBs occupied by the first resource obtained in steps 1 to 6.

As another alternative implementation manner, for example, 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 (such as 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. And the network equipment calculates the number of time units corresponding to the first resource under the condition that the frequency domain resource occupied by the first resource is the largest.

Described herein in connection with the examples in table 1. Table 1 shows the correspondence between the TB size, symbol length occupied by PDSCH and DMRS, symbol number occupied by PDCCH, and RB number.

TABLE 1

In table 1, the first three columns are the correspondence between the TB size range, the 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 latter three columns are the correspondence between the TB size range, PDSCH and DMRS scheduling symbol length, and RB number in the case where the number of symbols occupied by PDCCH is 2.

Alternatively, table 1 is merely exemplary, and is convenient to understand, but not limiting, of the embodiments of the present application. In fact, other reasonable combinations of the individual values in Table 1 are possible.

In the embodiment of the present application, optionally, the process of determining the first resource by the network device is a process of aggregating the resources for scheduling the common message (including aggregating on the time domain resources) so as to maximize the frequency domain unit corresponding to the first resource, thereby reducing the occupation of the time domain unit. Optionally, in the embodiment of the present application, the "time domain" is also "aggregation of symbols in a slot" in the description. This is described in connection with the example of the first resource in fig. 3. Alternatively, the descriptions of the radio frames, slots, and types in fig. 3 may refer to the existing descriptions, and are not repeated here. As shown in fig. 3, taking an example that the network device schedules one time slot (for example, index is 10) in the radio frame to send SIB, before symbol aggregation is not performed, the network device sends SIB to occupy RB0-RB3 in the frequency domain, and the symbols occupied in the time domain are 0-13. Wherein PDSCH, PDCCH, DMRS occupies the resources as shown in figure 3. If the above principle of "spreading the frequency domain and compressing the time domain" is adopted, after the symbols in the time slot are aggregated, an example graph of the aggregated first resources shown in fig. 3 can be obtained. As shown in fig. 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 subjected to symbol aggregation in fig. 3 are an example of the first resources, that is, RB0-RB15 is occupied in the frequency domain, and symbols occupied in the time domain are symbols 0-4. It can be seen that after symbol aggregation is performed by adopting the communication method of the embodiment of the present application, the number of symbols occupied by the resources for transmitting SIB in the time domain is significantly reduced. Here, on the premise of meeting the requirement of the service quality (quality of service, qos) delay, when the network device transmits the service data, the network device may preferentially transmit the data on the time slot and the symbol where the SIB is located, for example, the network device uses symbols 0-4 in the time slot in fig. 3 to transmit the data.

Alternatively, fig. 3 is merely an illustration of SIB, but is not limited to the embodiment of the present application. In fact, the network device may also employ the method shown in fig. 3 in determining the resources for transmitting the paging message, or the remaining minimum system information RMSI.

Alternatively, only one of the slots (slot with index 10) used for transmitting the SIB is shown in fig. 3, and other slots (such as slot with index 11, slot with index 12, or slot with index 13) may use a similar method.

Optionally, the network device may further determine a second resource for transmitting data based on the first resource. Optionally, the method 200 further includes: and S203, 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. Optionally, the second resource may be used to transmit service data, or may be used to transmit control command data, which is not limited.

The second resource may overlap with the first resource entirely in the time domain, or may overlap partially. Alternatively, the first resource and the second resource may be different in the frequency domain. For ease of understanding, a case where the "first resource overlaps with the second resource in the time domain" will be described below by way of example.

For example, the starting time unit corresponding to the second resource is the same as the starting time unit corresponding to the first resource, and the ending time unit corresponding to the second resource is the same as the ending time unit corresponding to the first resource. Illustratively, taking the time slot with index 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 may be determined that the second resource also occupies 4 symbols (symbol 0-symbol 3) in the time domain. Alternatively, taking fig. 3 as an example, if the network device determines 4 first resources, for example, a first resource corresponding to index 10, a first resource corresponding to index 11, a first resource corresponding to index 12, and a first resource corresponding to index 13, then the number of second resources may be 4 correspondingly, and each second resource occupies 4 symbols in the time domain.

For example, the starting time unit corresponding to the second resource is the same as the starting time unit corresponding to the first resource, and the ending time unit corresponding to the second resource is different from the ending time unit corresponding to the first resource. Illustratively, the first resource determined by the network device occupies 4 symbols (symbol 0-symbol 3) in the time domain, then it may be determined that the second resource also occupies 3 symbols (symbol 0-symbol 2) in the time domain. Alternatively, taking fig. 3 as an example, if the network device determines 4 first resources, for example, a first resource corresponding to index 10, a first resource corresponding to index 11, a first resource corresponding to index 12, and a first resource corresponding to index 13, then the number of second resources may be 4 correspondingly, and each second resource occupies 3 symbols in the time domain.

And S204, the network equipment performs data transmission on the second resource. Alternatively, "transmit" is "receive" or "transmit".

Alternatively, if there are a plurality of first resources determined by the network device, the determined second resources may also be a plurality, which is not limited.

The embodiment of the application also provides a communication method, wherein the network equipment can be used for carrying out hash distribution or discretization processing on a plurality of time domain units (each time domain unit comprises at least one time unit) for sending the system message in a broadcasting period of the system message so as to facilitate the convergence of service data to the time domain units corresponding to the system message, so that the time domain occupied by the second resource is converged to the time domain occupied by the first resource as much as possible, and therefore, the user transmission delay is not influenced when the network equipment is lightly loaded (the light load is not very heavy), and the energy saving benefit is realized. This process may be referred to as "system message slot (slots may also be other time domain units) hashing," for example. Alternatively, the "time slot hashing" process may be implemented alone or in combination with the "symbol aggregation" process described above, which is not particularly limited. For the 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 hashing the time slot of the system message can be obtained in the mode of symbol aggregation.

Fig. 4 is a schematic flow chart of a communication method 400 according to another embodiment of the application. Optionally, the terminal device involved in the method 400 may be a terminal device (such as the terminal device 130 or the terminal device 140) in fig. 1, or may refer to a device (such as a processor, a chip, or a chip system) in the terminal device. The network device may be access network device 120 of fig. 1, or may refer to a device (e.g., a processor, a chip, or a system-on-a-chip, etc.) in the network device.

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

S401, the network device determines the number of time windows in the broadcasting period of the system message.

Optionally, the network device may determine the number of time windows in the system message broadcast period according to the system message broadcast period and the duration of the time windows.

Illustratively, the network device sends the system message according to SSB beam scanning, each SSB beam may occupy one slot, and the slots occupied by the SSB beams may be hashed uniformly in a broadcast period of the system message.

During the system message broadcasting period siPeriod, with scanUnit as the duration of the time window or the scanning unit, each SSB beam is hashed according to scanUnit to perform scanning transmission, namely: each scanning unit completes the scanning transmission of partial wave beams, and the scanning transmission of all SSB wave beams is completed in a system message broadcasting period.

Wherein, optionally, the duration of the time window is a beam scanning period. Alternatively, the beam scanning period may be predefined or may be determined based on the system message broadcast period and the number of beams. For example, minimum value of beam scanning period=ceil (T/S), maximum value of beam scanning period=t, where T represents the system message broadcast period, S represents the number of beams, and the beam scanning period may take a value between the maximum value and the minimum value.

Alternatively, 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 in the manner of determining the number of time units included in the first resource. For example, when the network device determines the number of time units used in the time domain unit occupied by each beam before transmitting the system message by using at least one beam in each time window, the network device may determine the number of symbols to be used in the slot occupied by each beam by using the above-mentioned principle of "frequency domain expansion and time domain compression".

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

N＝rmsiPeriod/scanUnit (1)

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

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

And S402, the network equipment determines the number of beams in each time window based on the number of the time windows. Each beam occupies a time domain unit, each time domain unit comprising at least one time unit.

Illustratively, in the case of uniform hashing, the number of beams transmitted in each time window may satisfy the following equation:

x＝CEIL(ssbNum/N) (2)

x represents the number of beams per time window, CEIL represents the round-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, the network device substitutes the above (2) to calculate the number of beams to be transmitted in each time window, specifically: the number of beams in the 1 st time window is2, the number of beams in the 2 nd time window is2, the number of beams in the 3 rd time window is2, and the number of beams in the 4 th time window is 1.

Alternatively, SSB beams to be scanned and transmitted in each beam scanning period may be represented by indexes. For example, S [ i ] = { x i..min (x i-1, ssbnum-1) }, i= {0,..n-1 }, S [ i ] represents the i-th beam scanning period or SSB index set that the scanning unit needs to scan for transmission, ssbNum represents the total number of beams, x represents the number of beams that need to be transmitted in each time window, and N represents the number of time windows.

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

Illustratively, the network device may calculate the number of time windows based on the system message broadcast period, as well as the beam scanning period. The network device then calculates the number of beams to be transmitted in each time window based on the number of time windows. The network device uses the beam to be transmitted in each time window to transmit the system message. That is, the network device may send the system message over multiple time windows. And, in each time window, the network device transmits a system message using at least one SSB beam.

For ease of understanding, the case of time slot hashing over various time windows will be described herein in connection with the example in fig. 5. Taking the illustration in fig. 5 as an example, assuming that the system message broadcasting period is 80ms, the scanning period is 20ms, the number of beams is 7, the upper diagram in fig. 5 is a slot profile of the prior art, and the lower diagram is a slot profile of the present application. As can be seen from the upper graph in fig. 5, 7 time slots corresponding to 7 beams are all within the first 20ms, and if the time slot shown in the upper graph in fig. 5 is used for scheduling service data, the time delay is larger. As can be seen from the lower graph in fig. 5, 7 time slots corresponding to 7 beams are uniformly distributed in 4 time windows, each time window occupies 20ms, and if the time slots shown in the lower graph in fig. 5 are used for scheduling service data, the time delay is smaller. Because the time domain resources corresponding to the resources for scheduling the service data overlap with the time domain corresponding to the resources for sending the system information, the time delay of the service data is reduced by discretizing the time slot of the scheduling system information.

Alternatively, when the system message is transmitted using the time slots distributed in fig. 5, the number of symbols used in each time slot in fig. 5 may be obtained by using the "symbol aggregation" method in fig. 3.

In order to make more time domain units or time units (such as time slots and symbols) enter a state without data scheduling, so as to perform symbol turn-off, thereby realizing energy saving of network equipment, in the embodiment of the application, service data can be converged on a time domain resource corresponding to a sending system message. In the embodiment of the application, the time domain resources corresponding to the resources used for carrying out data transmission can be overlapped with the time domain resources occupied by the resources used for sending the system information, so that the scheduling of the data is more concentrated in the time domain.

Optionally, the method 400 further includes: the network device determines a second resource according to the resources occupied by the system message, where the time domain resource corresponding to the second resource overlaps with the time domain resource occupied by the system message, and the second resource is used for data transmission (may be service data or control signaling data, which is not limited). For example, for a network device, the network device may employ the second resource to transmit data. For the terminal device, the terminal device may receive data on the second resource. Here, the description of "the time domain resource corresponding to the second resource overlaps with the time domain resource occupied by the system message" may refer to the description of "the first resource overlaps with the second resource in the time domain" in the foregoing method 200, and the example of "the first resource overlaps with the second resource in the time domain" is also applicable here, which is not repeated herein for brevity.

Optionally, the number of time units included in the resources used for sending the system message is determined in the manner described in the foregoing method 200, for example, the number of symbols included in the resources used for sending the system message is less than 14 symbols included in one slot.

Alternatively, the resources occupied for sending the system message may be one or more, which is not limited. If there are multiple resources for sending the system message, and the time domain units corresponding to the multiple resources for sending the system message are discretely distributed (or hashed) in multiple time windows (for example, the number of multiple time windows is determined by using the method 400), then the network device may use the time domain resources corresponding to the discretely distributed multiple resources as the time domain resources corresponding to the resources for scheduling the service data, that is, the time domain units corresponding to the multiple second resources may also be discretely distributed in multiple time windows in the manner of "the time domain units corresponding to the multiple resources for sending the system message are discretely distributed in multiple time windows" as described above.

It should be noted that, if the network device hashes or discretizes the time domain units (such as time slots) corresponding to the plurality of resources used for transmitting the system message in the broadcasting period of the system message, the determination of the time domain resources occupied by the plurality of second resources also needs to refer to the time domain units corresponding to the plurality of discretized resources. That is, for the case of "time slot discretization", the time domain resources occupied by the plurality of second resources may be the same as the time domain units occupied by the plurality of resources for transmitting the system message. For example, taking fig. 5 as an example, assume that time domain units corresponding to a plurality of resources for transmitting a system message are respectively: time slots 1 to 7, time slots 1 to 7 are hashed according to the example in fig. 5, and then the time domain units occupied by the plurality of second resources may also be time slots 1 to 7, and the manner of distribution of time slots 1 to 7 also follows the hashed distribution of the time domain units corresponding to the plurality of resources used for transmitting the system message, i.e. the example in fig. 5.

It should be understood that the examples in fig. 3 and 5 are merely for facilitating understanding of embodiments of the present application by those skilled in the art, and are not intended to limit embodiments of the present application to the specific scenarios illustrated. It will be apparent to those skilled in the art from the examples of fig. 3 and 5 that various equivalent modifications or variations may be made, and such modifications or variations are intended to be 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 some scenarios, independent of other features, such as the current scheme based on which the optional features are based, so as to solve corresponding technical problems, achieve corresponding effects, or may be combined with other features according to requirements in some scenarios. Accordingly, the device provided in the embodiment of the present application may also implement these features or functions accordingly, which will not be described herein.

It should be appreciated that reference throughout this specification to "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, various embodiments are not necessarily referring to the same embodiments throughout the specification. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

It is to be understood that the various aspects of the embodiments of the application may be used in any reasonable combination, and that the explanation or illustration of the various terms presented in the embodiments may be referred to or explained in the various embodiments without limitation.

It should also be understood that, in various embodiments of the present application, the sequence number of each process described above does not mean the order of execution, and the order of execution of each process should be determined by its functions and inherent logic. The various numbers or serial numbers referred to in the above processes are merely for convenience of description and should not be construed as limiting the implementation of the embodiments of the present application.

Corresponding to the method presented in the above method embodiment, the embodiment of the present application further provides a corresponding apparatus, where the apparatus includes a module for executing the corresponding module of the above embodiment. The modules may be software, hardware, or a combination of software and hardware. Alternatively, the technical features described for the method embodiments are equally applicable to the following device embodiments.

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

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

In particular, the communication apparatus 1000 may correspond to a network device in the method 200 according to an embodiment of the application, the communication apparatus 1000 may comprise means for performing the method performed by the network device in the method 200 in fig. 2 or comprise means for performing the method 400 in fig. 4. And, each unit in the communication apparatus 1000 and the other operations or functions described above are respectively for implementing the corresponding flow of the network device in the method 200 in fig. 2 or the method 400 in fig. 4.

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

The processing unit 1200 is 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, and 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.

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

Optionally, the frequency domain resources occupied by the first resources are determined based on one or more of: the size of the transport block TB 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 resource occupied by the first resource includes a plurality of frequency domain units, and the plurality of frequency domain units occupy the maximum number in the control resource set CORESET.

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

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

In particular, the communication apparatus 1000 may correspond to a network device in the method 400 according to an embodiment of the application, the communication apparatus 1000 may comprise means for performing the method performed by the network device in the method 400 in fig. 4. And, each unit in the communication apparatus 1000 and the other operations or functions described above are respectively for implementing the corresponding flow of the network device in the method 400 in fig. 4.

the processing unit 1200 is configured to determine the number of time windows in a system message broadcast period; and 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 1100 is configured to transmit a system message using the beam.

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

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.

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 an upward rounding, 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 performing the corresponding steps has been described in detail in the above method embodiments, and is not described herein for brevity.

It should also be appreciated that when the communication apparatus 1000 is a base station, the transceiver unit 1100 in the communication apparatus 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 apparatus 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 apparatus 1000 is a chip configured in a network device, the transceiver unit 1200 in the communication apparatus 1000 may be an input/output interface circuit.

Optionally, the communication device 1000 further includes a storage unit, where the storage unit may be configured to store instructions or data, and the processing unit may invoke the instructions or data stored in the storage unit to implement the corresponding operation. The storage unit may be implemented by at least one memory, for example, may correspond to the memory 3014 in the network device 3000 in fig. 7.

Fig. 7 is a schematic structural diagram of a network device according to an embodiment of the present application, for example, may be a schematic structural diagram of a base station 3000. The base station 3000 may be applied to the system shown in fig. 1, and perform the functions of the network device in the above method embodiment. As shown, the base station 3000 may include one or more DUs 3010 and one or more CUs 3020. The CU3020 may communicate with a next generation core Network (NC). The DU 3010 may include at least one antenna 3011, at least one radio frequency 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, converting radio frequency signals and baseband signals, and processing part of baseband. The CU3020 may include at least one processor 3022 and at least one memory 3021. Communication between CU3020 and DU 3010 may be via an interface, where 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 CU3020 portion is mainly used for baseband processing, control of a base station, and the like. The DU 3010 and CU3020 may be physically located together or may be physically separate, i.e., a distributed base station. The CU3020 is a control center of the base station, and may also be referred to as a processing unit, and is mainly configured to perform a baseband processing function. For example, the CU3020 may be configured to control the base station to perform the operation procedure of the method embodiment described above with respect to the network device.

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

Further, optionally, base station 3000 may include one or more radio frequency units (RUs), one or more DUs, and one or more CUs. Wherein 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 an example, the CU 3020 may be formed by one or more boards, where the boards may support a single access indicated radio access network (such as a 5G network) together, or may support radio access networks of different access systems (such as an LTE network, a 5G network, or other networks) respectively. The memory 3021 and the processor 3022 may serve one or more boards. That is, the memory and the processor may be separately provided on each board. It is also possible that multiple boards share the same memory and processor. In addition, each single board can be provided with necessary circuits. The DU 3010 may be configured by one or more single boards, where the multiple single boards may support a single access indicated radio access network (such as a 5G network), or may support radio access networks of different access schemes (such as an LTE network, a 5G network, or other networks). The memory 3014 and processor 3013 may serve one or more boards. That is, the memory and the processor may be separately provided on each board. It is also possible that multiple boards share the same memory and processor. In addition, each single board can be provided with necessary circuits.

It should be understood that the base station 3000 shown in fig. 7 is capable of implementing various processes involving network devices in the method embodiments shown in fig. 2 or fig. 4. The operations and/or functions of the respective modules in the base station 3000 are respectively for implementing the corresponding flows in the above-described method embodiments. Reference is specifically made to the description in the above method embodiments, and detailed descriptions are omitted here as appropriate to avoid repetition.

It should be understood that the base station 3000 shown in fig. 7 is only one possible architecture of a network device, and should not be construed as limiting the present application in any way. The method provided by the application can be applied to access network equipment with other architectures. For example, access network devices containing CUs, DUs, and AAUs, etc. The application is not limited to the specific architecture of the network device.

According to a method provided by an embodiment of the present application, the present application also provides a computer program product, including: computer program code which, when run on a computer, causes the computer to perform the method on the network device side in the embodiment shown in fig. 2 or fig. 4.

According to the method provided by the embodiment of the present application, the present application further provides a computer readable medium, where a program code is stored, which when executed on a computer, causes the computer to perform the method on the network device side in the embodiment shown in fig. 2 or fig. 4.

The embodiment of the application also provides a processing device, which comprises a processor and an interface circuit, wherein the interface circuit is coupled with the interface circuit; the processor is configured to perform the communication method of any of the method embodiments described above.

Based on the same technical concept, the embodiment of the present application further provides an apparatus 800, and the structure and function of the apparatus 800 will be specifically described with reference to fig. 8, which is a schematic block diagram of the apparatus 800. The apparatus may comprise at least one processor 801 and interface circuitry 802 which, when executed in the at least one processor 801, may cause the apparatus 800 to implement the communication methods provided by any of the previous embodiments and any of the possible designs thereof. The interface circuit 802 may be configured to receive program instructions and transmit the program instructions to the processor, or the interface circuit 802 may be configured to communicate with other communication devices, such as interactive control signaling and/or traffic data, etc., with the apparatus 800. The interface circuit 802 may be a code and/or data read-write interface circuit, or the interface circuit 802 may be a signaling interface circuit between a communication processor and a transceiver. Optionally, the communication device 800 may further comprise at least one memory 803, which memory 803 may be used for storing the program instructions and/or data concerned as desired. Optionally, the apparatus 800 may further include a power supply circuit 804, where the power supply circuit 804 may be configured to supply power to the processor 801, and the power supply circuit 804 may be located on the same chip as the processor 801 or on another chip outside the chip on which the processor 801 is located. Optionally, the apparatus 800 may further comprise a bus 805, and the various parts of the apparatus 800 may be interconnected by the bus 805.

The power supply circuit according to the embodiment of the application includes, but is not limited to, at least one of the following: a power supply line, a power supply system, a power management chip, a power consumption management processor or a power consumption management control circuit.

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

The communication apparatus and the method embodiments in the respective apparatus embodiments described above correspond entirely to the terminal device and the network device, and the respective steps are performed by respective modules or units, for example, the communication unit (transceiver) performs the steps of receiving or transmitting in the method embodiment, and other steps than transmitting and receiving may be performed by the processing unit (processor). Reference may be made to corresponding method embodiments for the function of a specific unit. Wherein the processor may be one or more.

Those of skill in the art will further appreciate that the various illustrative logical blocks (illustrative logical block) and steps (steps) described in connection with the embodiments of the application may be implemented by electronic hardware, computer software, or combinations of both. Whether such functionality is implemented as hardware or software depends upon the particular application and design requirements of the overall system. Those skilled in the art may implement the described functionality in varying ways for each particular application, but such implementation is not to be understood as beyond the scope of the embodiments of the present application.

It should be appreciated that the processor in embodiments of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a digital signal processor (DIGITAL SIGNAL processor, DSP), an Application Specific Integrated Circuit (ASIC), a field programmable gate array (field programmable GATE ARRAY, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, a system on chip (SoC), a central processor (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 chip. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

The techniques described herein may be implemented by various means. For example, these techniques may be implemented in hardware, software, or a combination of hardware. For a hardware implementation, the processing units used to perform these techniques at a communication device (e.g., a base station, terminal, network entity, or chip) may 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 gate or transistor logic, discrete hardware components, or any combinations thereof. A general purpose processor may be a microprocessor, but in the alternative, the general purpose processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices, e.g., 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.

Alternatively, the memory in embodiments of the present application may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an erasable programmable ROM (erasable PROM), an electrically erasable programmable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM) which acts as external cache memory. By way of example, and not limitation, many forms of RAM are available, such as static random access memory (STATIC RAM, SRAM), dynamic random access memory (DYNAMIC RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate synchronous dynamic random access memory (double DATA RATE SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (ENHANCED SDRAM, ESDRAM), synchronous link dynamic random access memory (SYNCHLINK DRAM, SLDRAM), and direct memory bus random access memory (direct rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may 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 processes or functions described in accordance with embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may 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 may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (e.g., a solid-state disk (solid-state drive STATE DISK, SSD)), or the like.

It should be understood that, in the present application, "when …", "if" and "if" all refer to that the UE or the base station will make corresponding processing under some objective condition, and are not limited in time, nor do they require that the UE or the base station must have judgment actions when implemented, nor are they meant to imply other limitations.

Optionally by one of ordinary skill in the art: the first, second, etc. numbers referred to in the present application are merely for convenience of description and are not intended to limit the scope of the embodiments of the present application, but also to indicate the sequence.

Elements referred to in the singular are intended to be used in the present disclosure as "one or more" rather than "one and only one" unless specifically stated otherwise. In the present application, "at least one" is intended to mean "one or more" and "a plurality" is intended to mean "two or more" unless specifically indicated.

In addition, the terms "system" and "network" are often used interchangeably herein. The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: there are three cases where a alone exists, where a may be singular or plural, and where B may be singular or plural, both a and B exist alone.

The character "/" generally indicates that the context-dependent object is an "or" relationship.

The term "at least one of … …" or "at least one of … …" herein means all or any combination of the listed items, e.g., "at least one of A, B and C," may mean: there are six cases where A alone, B alone, C alone, A and B together, B and C together, A, B and C together, 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 embodiments of the present application, "B corresponding to a" means that B is associated with a from which B may be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may also determine B from a and/or other information.

The correspondence relation shown in each table in the application can be configured or predefined. The values of the information in each table are merely examples, and may be configured as other values, and the present application is not limited thereto. In the case of the correspondence between the configuration information and each parameter, it is not necessarily required to configure all the correspondence shown in each table. For example, in the table of the present application, the correspondence relation shown by some rows may not be configured. For another example, appropriate morphing adjustments, e.g., splitting, merging, etc., may be made based on the tables described above. The names of the parameters indicated in the tables may be other names which are understood by the communication device, and the values or expressions of the parameters may be other values or expressions which are understood by the communication device. When the tables are implemented, other data structures may be used, for example, an array, a queue, a container, a stack, a linear table, a pointer, a linked list, a tree, a graph, a structure, a class, a heap, a hash table, or a hash table.

As used herein, the term "predefined" in embodiments of the present application is optionally defined, predefined, stored, pre-negotiated, pre-configured, cured, or pre-manufactured. Optionally, the configuration in the embodiment of the present application is configured to be notified through RRC signaling, MAC signaling, and physical layer information, where the physical layer information may be transmitted through PDCCH or PDSCH.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of 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 the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a random access memory (random access memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

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；

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

x＝CEIL(ssbNum/N)；

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;

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；

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

x＝CEIL(ssbNum/N)；

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.