CN114982356A

CN114982356A - Information transmission method, device, equipment and storage medium

Info

Publication number: CN114982356A
Application number: CN202080093641.XA
Authority: CN
Inventors: 贺传峰
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-03-20
Filing date: 2020-03-20
Publication date: 2022-08-30
Also published as: WO2021184354A1

Abstract

The embodiment of the application provides an information transmission method, an information transmission device, information transmission equipment and a storage medium, and is applied to the technical field of communication. Wherein, the method comprises the following steps: the method comprises the steps that a network device (base station) firstly determines scheduling information of a data channel, the data channel carries system information, then indication information of the scheduling information is sent through a physical broadcast channel, and correspondingly, a terminal device determines the scheduling information of the data channel according to the indication information received through the physical broadcast channel.

Description

Information transmission method, device, equipment and storage medium

Technical Field

The embodiment of the application relates to the technical field of communication, in particular to an information transmission method, an information transmission device, information transmission equipment and a storage medium.

Background

A new radio-light (NR-light) system is proposed to expand and optimize the support of 5G to the internet of things, which can meet the requirements of services other than enhanced mobile broadband (eMBB) services, and a terminal supporting these services may be called a low-power terminal, and has the characteristics of supported bandwidth reduction, processing time relaxation, antenna number reduction, and the like, thereby reducing power consumption and cost.

In an initial access process in an existing NR system, a terminal device first receives a Physical Downlink Control Channel (PDCCH) through a Master Information Block (MIB), where the PDCCH is a type 0(type 0) PDCCH and carries control channel resource set (core set) and search space (search space) information, so as to obtain scheduling information of a Physical Downlink Shared Channel (PDSCH) carrying a system information block 1(system information block 1, SIB 1).

However, since the terminals supported by the NR-light system are low-power terminals, if the initial access procedure based on the NR system is performed, it is necessary to first detect the type0PDCCH and then obtain the scheduling information of the PDSCH carrying the SIB1, which causes problems of large power consumption and complex detection of the terminals.

Disclosure of Invention

The embodiment of the application provides an information transmission method, an information transmission device, information transmission equipment and a storage medium, and solves the problems of high power consumption and complex detection of a terminal in the initial access process of the conventional terminal.

In a first aspect, an embodiment of the present application provides an information transmission method, which is applied to a terminal device, and the method includes:

receiving indication information through a physical broadcast channel;

and determining scheduling information of a data channel according to the indication information, wherein the data channel carries system information, and the scheduling information comprises at least one of frequency domain resource information and time domain resource information.

In a second aspect, an embodiment of the present application provides an information transmission method, which is applied to a network device, and the method includes:

determining scheduling information of a data channel, wherein the data channel bears system messages;

transmitting indication information of the scheduling information through a physical broadcast channel;

wherein the scheduling information includes at least one of frequency domain resource information and time domain resource information.

In a third aspect, an embodiment of the present application provides an information transmission apparatus, including: the device comprises a receiving module and a processing module;

the receiving module is used for receiving the indication information through a physical broadcast channel;

the processing module is configured to determine scheduling information of a data channel according to the indication information, where the data channel carries a system message, and the scheduling information includes at least one of frequency domain resource information and time domain resource information.

In a fourth aspect, an embodiment of the present application provides an information transmission apparatus, including: the device comprises a processing module and a sending module;

the processing module is configured to determine scheduling information of a data channel, where the data channel carries a system message;

the sending module is configured to send the indication information of the scheduling information through a physical broadcast channel;

In a fifth aspect, an embodiment of the present application provides a terminal device, including:

a processor, a memory, a receiver, and an interface to communicate with a network device;

the memory stores computer-executable instructions;

the processor executes computer-executable instructions stored by the memory, causing the processor to perform the method of the first aspect.

Alternatively, the processor may be a chip.

In a sixth aspect, an embodiment of the present application provides a network device, including:

a processor, a memory, a transmitter, and an interface for communicating with a terminal device;

the memory stores computer-executable instructions;

the processor executes computer-executable instructions stored by the memory, causing the processor to perform the method of the second aspect.

Alternatively, the processor may be a chip.

In a seventh aspect, this application embodiment provides a computer-readable storage medium, in which computer-executable instructions are stored, and when the computer-executable instructions are executed by a processor, the method of the first aspect is implemented.

In an eighth aspect, the present application provides a computer-readable storage medium, in which computer-executable instructions are stored, and when the computer-executable instructions are executed by a processor, the computer-readable storage medium implements the method according to the second aspect.

In a ninth aspect, embodiments of the present application provide a program, which, when executed by a processor, is configured to perform the method according to the first aspect.

In a tenth aspect, embodiments of the present application provide a program, which when executed by a processor, is configured to perform the method according to the second aspect.

In an eleventh aspect, the present application provides a computer program product, which includes program instructions for implementing the method according to the first aspect.

In a twelfth aspect, embodiments of the present application provide a computer program product, which includes program instructions for implementing the method according to the second aspect.

In a thirteenth aspect, an embodiment of the present application provides a chip, including: a processing module capable of performing the method of the first aspect is interfaced with the communication.

Further, the chip further comprises a storage module (e.g., a memory) for storing instructions, the processing module is for executing the instructions stored by the storage module, and the execution of the instructions stored in the storage module causes the processing module to execute the method according to the first aspect.

In a fourteenth aspect, an embodiment of the present application provides a chip, including: a processing module capable of performing the method of the second aspect is interfaced with the communication.

Further, the chip further comprises a storage module (e.g., a memory) for storing instructions, the processing module is for executing the instructions stored by the storage module, and the execution of the instructions stored in the storage module causes the processing module to execute the method according to the second aspect.

A fifteenth aspect of the present application provides a communication system comprising: network equipment and terminal equipment;

the terminal device is the apparatus according to the third aspect, and the network device is the apparatus according to the fourth aspect.

In the information transmission method, apparatus, device, and storage medium provided in this embodiment, a network device (base station) first determines scheduling information of a data channel, and the data channel carries a system message, and then sends indication information of the scheduling information through a physical broadcast channel, and correspondingly, a terminal device determines the scheduling information of the data channel according to the indication information received through the physical broadcast channel.

Drawings

Fig. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application;

fig. 2 is a schematic distribution diagram of time domain and frequency domain resources contained in a synchronization signal block;

FIG. 3 is a schematic diagram of RBG-based frequency domain resource allocation;

fig. 4 is a schematic diagram of resource distribution of frequency domain resource allocation of type 1;

fig. 5 is an interaction diagram of a first embodiment of an information transmission method provided in the present application;

fig. 6 is an interaction diagram of a second embodiment of an information transmission method provided in the present application;

FIG. 7 is a schematic diagram of a distribution of a first bandwidth and a frequency domain location of the first bandwidth where a data channel is located;

fig. 8 is a schematic diagram of another distribution of a first bandwidth and a frequency domain location of the first bandwidth where a data channel is located;

fig. 9 is a schematic diagram of a first bandwidth in which a data channel is located and a further distribution of frequency domain locations of the first bandwidth;

fig. 10 is an interaction diagram of a third embodiment of an information transmission method provided in the present application;

fig. 11 is a schematic structural diagram of a first embodiment of an information transmission device provided in the present application;

fig. 12 is a schematic structural diagram of a second embodiment of an information transmission device provided in the present application;

fig. 13 is a schematic structural diagram of a terminal device provided in the present application;

fig. 14 is a schematic structural diagram of a network device provided in the present application;

fig. 15 is a schematic block diagram of a communication system according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "first," "second," and the like in the description and in the claims, and in the drawings, of the embodiments of the application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in other sequences than described or illustrated herein. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The information transmission method provided by the following embodiments of the present application is applicable to a communication system. Fig. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application. As shown in fig. 1, the communication system may include a network device 110 and a plurality of terminal devices 120 located within a coverage area of the network device 110. Fig. 1 exemplarily shows one network device 110 and two terminal devices 120.

Optionally, the communication system may include a plurality of network devices 110, and each network device may include other numbers of terminal devices 120 within the coverage area, and the number of network devices 110 and terminal devices 120 included in the communication system is not limited in the embodiment of the present application.

As shown in fig. 1, the terminal device 120 is connected to the network device 110 in a wireless manner. For example, the network device 110 and the plurality of terminal devices 120 may each use unlicensed spectrum for wireless communication therebetween.

Optionally, device to device (D2D) communication may be performed between terminal devices 120.

It is understood that fig. 1 is a schematic diagram, and other network devices, such as a core network device, a wireless relay device, and a wireless backhaul device, may also be included in the communication system, or other network entities, such as a network controller, a mobility management entity, and the like, which is not limited to the embodiments of the present application.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a global system for mobile communications (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) system, a General Packet Radio Service (GPRS), a long term evolution (long term evolution, LTE) system, a LTE frequency division duplex (frequency division duplex, FDD) system, a LTE time division duplex (time division duplex, TDD) system, an advanced long term evolution (advanced long term evolution, LTE-a) system, a new radio (new NR) system, an LTE system of an NR system, an LTE (long term evolution-unlicensed-universal-radio, LTE-unlicensed-universal-radio, an NR system of an unlicensed band, an LTE (non-licensed-universal-radio, NR) system of an unlicensed band, an NR system of a mobile-radio (unlicensed-universal-radio, LTE-unlicensed-universal-radio, NR) system of an unlicensed band, an NR system of a mobile-radio (unlicensed band, an NR) system of an unlicensed band, an NR system of a mobile-unlicensed band, an NR system of an unlicensed band, an unlicensed band-universal-radio, an NR system of a radio-unlicensed band, an NR system of a mobile-radio system, UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, Wireless Local Area Network (WLAN), wireless fidelity (WiFi), next generation communication system, or other communication system.

Generally, conventional communication systems support a limited number of connections and are easy to implement, however, with the development of communication technology, mobile communication systems will support not only conventional communication, but also, for example, device to device (D2D) communication, machine to machine (M2M) communication, Machine Type Communication (MTC), and vehicle to vehicle (V2V) communication, and the embodiments of the present application can also be applied to these communication systems.

The system architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application, and as a person of ordinary skill in the art knows that along with the evolution of the network architecture and the appearance of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

The network device related in this embodiment may be a common base station (e.g., a NodeB or an eNB or a gNB), a new radio controller (NR controller), a centralized network element (centralized unit), a new radio base station, a radio remote module, a micro base station, a relay (relay), a distributed network element (distributed unit), a reception point (TRP), a Transmission Point (TP), or any other device. The embodiments of the present application do not limit the specific technologies and the specific device forms used by the network devices. For convenience of description, in all embodiments of the present application, the above-mentioned apparatus for providing a wireless communication function for a terminal device is collectively referred to as a network device.

In the embodiment of the present application, the terminal device may be any terminal, for example, the terminal device may be a user equipment for machine type communication. That is, the terminal equipment may also be referred to as User Equipment (UE), a Mobile Station (MS), a mobile terminal (mobile terminal), a terminal (terminal), etc., and the terminal equipment may communicate with one or more core networks via a Radio Access Network (RAN), for example, the terminal equipment may be a mobile phone (or "cellular" phone), a computer with a mobile terminal, etc., and the terminal equipment may also be a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device, which exchanges language and/or data with the RAN. The embodiments of the present application are not particularly limited.

Optionally, the network device and the terminal device may be deployed on land, including indoors or outdoors, hand-held or vehicle-mounted; can also be deployed on the water surface; it may also be deployed on airborne airplanes, balloons and satellite vehicles. The embodiment of the application does not limit the application scenarios of the network device and the terminal device.

Optionally, the network device and the terminal device may communicate via a licensed spectrum (licensed spectrum), may also communicate via an unlicensed spectrum (unlicensed spectrum), and may also communicate via both the licensed spectrum and the unlicensed spectrum. The network device and the terminal device may communicate with each other through a frequency spectrum of less than 7 gigahertz (GHz), may communicate through a frequency spectrum of more than 7GHz, and may communicate using both a frequency spectrum of less than 7GHz and a frequency spectrum of more than 7 GHz. The embodiments of the present application do not limit the spectrum resources used between the network device and the terminal device.

In the embodiments of the present application, "a plurality" means two or more. "and/or" describes the association relationship of the associated object, indicating that there may be three relationships, for example, a and/or B, which may indicate: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

The following first introduces some related technologies related to the embodiments of the present application:

synchronization Signal Block SSB (SS/PBCH block) in NR

The SS/PBCH block is short for a synchronization signal block (SS block) and a physical broadcast channel block (PBCH block).

Specifically, in the NR system, common channels and common signals, such as synchronization signals and broadcast channels, need to cover the whole cell in a multi-beam scanning manner, so as to be received by terminal devices in the cell. Wherein, the multi-beam transmission of a Synchronization Signal (SS) is realized by defining SS/PBCH burst set. One SS/PBCH burst set contains one or more SS/PBCH blocks. One SS/PBCH block is used to carry the synchronization signal and broadcast channel of one beam. Therefore, one SS/PBCH burst set may contain the same number of beams of the synchronization signal as the number of intra-cell synchronization signal blocks (SS block number).

The maximum number L of SS block numbers is related to the frequency band of the system. Specifically, For a frequency band up to 3GHz, L is equal to 4(For frequency range up to 3GHz, L is 4); for the frequency range (band) of 3GHz to 6GHz, L equals 8(For frequency range from 3GHz to 6GHz, L is 8); for the frequency range (band) of 6GHz to 52.6GHz, L is equal to 64(For frequency range from 6GHz to 52.6GHz, L is 64).

Exemplarily, fig. 2 is a schematic diagram of a distribution of time domain and frequency domain resources included in one synchronization signal block. Referring to fig. 2, the time domain information includes: OFDM symbol 0 to OFDM symbol 3, and the frequency domain information includes 0 to 239 subcarriers. Illustratively, one SS/PBCH block (SSB) contains an Orthogonal Frequency Division Multiplexing (OFDM) distribution as follows: primary Synchronization Signal (PSS) of one symbol, Secondary Synchronization Signal (SSS) of one symbol, and combination of two Physical Broadcast Channels (PBCH), PBCH of two symbols. The time-frequency resource occupied by the PBCH includes a demodulation reference signal (DMRS), and the DMRS is used for demodulating the PBCH.

Illustratively, as shown in FIG. 2, in the first symbol (OFDM symbol 0), PSS occupies 56-182 subcarriers in the frequency domain, in the second and fourth symbols (OFDM symbol 1 and OFDM symbol 3), PBCH occupies 0-239 subcarriers in the frequency domain, in the third symbol (OFDM symbol 2), SSS occupies 56-182 subcarriers in the frequency domain, and PBCH occupies 0-47 and 192-239 subcarriers in the frequency domain.

In general, all SS/PBCH blocks in the SS/PBCH burst set are transmitted within a time window of 5ms, and are repeatedly transmitted at a certain period, and the period is configured by a parameter synchronization signal block timer (SSB-timing) of a higher layer. Optionally, the period includes 5ms, 10ms, 20ms, 40ms, 80ms, 160ms, and the like.

For a terminal device (e.g., UE), the UE determines, through the received SS/PBCH block, an index of the SSB, and a value range of the index (SSB index) of the SSB is [0, L-1], where L is a maximum number of SSBs corresponding to a frequency band where the SSB is located. The SSB index corresponds to the relative position of the SSB within the 5ms time window, and the UE determines the frame synchronization information according to the SSB index and the field indication carried in the PBCH. Wherein, the index of the SS/PBCH block is indicated by DMRS of PBCH or information carried by PBCH.

In the embodiment of the present application, besides the synchronization signals SS and PBCH, some other common information, such as system information block 1 (SIB 1), paging (paging) information, needs to be sent by multi-beam scanning.

Reception of search space (search space) carried by PDCCH of SIB1

Currently, PBCH carries a Master Information Block (MIB), which includes an information field of SIB1 configuration (PDCCH-ConfigSIB1) carried by PDCCH, specifically, information of control resource set (core set 0) of PDCCH (type0 PDCCH) of type 0. The information of the CORESET 0 is used to indicate a Resource Block (RB) of the type0PDCCH in a frequency domain and a symbol in a time domain.

That is, the PDCCH-ConfigSIB1 information field in the MIB information carried by the PBCH includes CORESET #0 information of type0 PDCCH.

Specifically, table 1 shows the correspondence between the index indicated by the CORESET 0 information and the number of RBs and the number of symbols of CORESET 0. Specifically, table 1 mainly targets frequency bands with minimum channel bandwidth of 5MHz or 10MHz, and when the subcarrier spacing of { SS/PBCH block, PDCCH } is {15,15} kHz, the Set Type 0-the Set of resource blocks carried by the search space of PDCCH and slot symbols of CORESET (Set of resource blocks and slot symbols for core for Type0-PDCCH search space Set { SS/PBCH block, PDCCH } SCS {15,15} kHz for frequency bands with minimum channel bandwidth of 5MHz or 10 MHz).

In practical applications, the CORESET 0 information indicates one of the indexes (index) in table 1, and according to the index, the RB number and the symbol number of CORESET 0 and the RB offset compared to the SSB can be obtained.

Illustratively, referring to table 1, in the case where the subcarrier spacing is 15kHz, the bandwidth of CORESET 0 may be configured to 24, 48, 96 RBs, and the number of RBs whose frequency domain position of CORESET #0 is shifted from that of SSB.

TABLE 1

Optionally, the information field of PDCCH-ConfigSIB1 in the MIB information carried by the PBCH may further include information of Search space 0(Search space 0) of type0 PDCCH. The Search space 0 information is used to determine the monitoring occasion of type0 PDCCH. the monitoring occasion of type0PDCCH is determined by the following way: for the multiplexing mode of SSB (SS/PBCH block) and CORESET being pattern 1, the terminal device monitors the common search space of Type0-PDCCH on two continuous time slots.

Alternatively, assume that the number of the starting slot of two consecutive slots is n ₀ . Each SSB with the number i corresponds to a monitoring window, and the number n of the starting time slot of the monitoring window ₀ Determined by the following equation:

wherein the content of the first and second substances,

is the number of slots in a radio frame, where μ is a parameter related to the subcarrier spacing.

Meaning rounded down, i.e.

Represents the largest integer smaller than i · M.

M and O can be indicated by Search space 0 information in PBCH, and the value of O includes {0,2,5,7} in the frequency domain below 6GHz (frequency range 1, FR1), and {0,2.5,5,7.5} in the frequency domain above 6GHz (frequency range 2, FR 2). The value of M includes {1/2,1,2 }.

Exemplarily, table 2 shows Parameters of the monitoring occasions of PDCCH when Type 0-Common Search Space (CSS) of PDCCH is set to SSB and CORESET adopting multiplexing mode 1 and frequency range FR1 (Parameters for PDCCH monitoring occasions for Type0-PDCCH CSS set-SS/PBCH block and CORESET multiplexing pattern 1 and FR 1). For example, referring to table 2, taking FR1 as an example, the Search space 0 indication information is shown in the following table:

TABLE 2

Further, in determining the time slot number n ₀ Then, the radio frame number SFN where the listening window is located is further determined _C ：

SFN _C mod2 is 0 if

Or

SFN _C mod2 if 1

I.e. when based on

SFN is obtained when the number of the calculated time slots is less than the number of the time slots contained in one wireless frame _C An even number of radio frames; when according to

SFN is obtained when the number of the calculated time slots is larger than the number of the time slots contained in one wireless frame _C Odd radio frames.

Transmission of SIB1-BR in Machine Type Communication (MTC) system

In the MTC System, scheduling Information of a PDSCH carrying a System message Block Type 1(System Information Block Type1-Bandwidth-reduced, SIB1-BR) with reduced Bandwidth need not be carried through a control channel, and the PDSCH is transmitted on a certain radio frame and subframe number.

Optionally, the frequency hopping is performed between the narrow bands in the downlink bandwidth according to a rule for the narrow band where the frequency domain resource of the PDSCH is located. The frequency domain resources of the PDSCH occupy 6 Physical Resource Blocks (PRBs) of the narrowband. The initial symbol of PDSCH in the subframe is determined according to the downlink bandwidth of a cell, and the scheduling information of PDSCH carrying SIB1-BR is carried by MIB information.

Specifically, the scheduling information of the PDSCH carrying the SIB1-BR includes the number of retransmissions of the PDSCH and the size of a transport block, the number of retransmissions of the PDSCH and the size of the transport block are indicated by an information field, the information field is a Value of scheduling information SIB1-BR (Value of scheduling info SIB1-BR), and the range is an integer of 0-31. Specifically, the results are shown in tables 3 and 4.

Exemplarily, table 3 shows the Number of repetitions of PDSCH carrying a system information block of bandwidth reduction type1 (Number of repetitions for PDSCH carrying system information block type1-BR for BL/CE UE), i.e., the Number of retransmissions of PDSCH indicated by the value of scheduling information SIB1-BR, for a small bandwidth and low complexity (BL) or Coverage Enhancement (CE) UE.

TABLE 3

Value of scheduling information SIB1-BR	Number of retransmissions of PDSCH
0	N/A
1	4
2	8
3	16
4	4
5	8
6	16
7	4
8	8
9	16
10	4
11	8
12	16
13	4
14	8
15	16
16	4
17	8
18	16
19-31	Reservation

Table 4 shows the Transport Block Size (TBS) table for PDSCH carrying PDSCH of Bandwidth reduction type1, i.e. the value of scheduling information SIB1-BR (Transport Block index I) _TBS ) The indicated transport block size.

TABLE 4

Optionally, in practical application, the PDSCH carrying the SIB1-BR is transmitted according to a scheduling period of 80ms, and is repeatedly transmitted in each period, and the radio frame and subframe where the retransmission is located are determined according to the cell identifier and the retransmission frequency. Illustratively, the PDSCH carrying the SIB1-BR is fixedly modulated in a Quadrature Phase Shift Keying (QPSK) manner.

Downlink data transmission in NR

In NR, when a base station schedules downlink data transmission through Downlink Control Information (DCI) (DCI format 1_0 or DCI format 1_1) of a downlink grant (DL grant), the base station carries scheduling information of a PDSCH in the DCI, where the scheduling information includes time domain resource allocation information and frequency domain resource allocation information.

The time domain resource allocation information is indicated by a Time Domain Resource Allocation (TDRA) field, where the TDRA field includes 4bits and may indicate 16 different rows in a resource allocation table, and each row includes different resource allocation combinations, such as a starting symbol S, a length L, a k0, and different types of the PDSCH. Where k0 indicates the number of slots (slots) in which the DCI is located and the slots in which the PDSCH is located.

In NR, the starting symbol and length of PDSCH are not fixed, but the starting symbol S and length L of PDSCH in the scheduling slot are indicated by the TDRA field in DCI. The values of S and L are not arbitrary, but are jointly encoded to form a Start and Length Indicator (SLIV) value. Optionally, there are two main lengths of Cyclic Prefix (CP), which are Normal Cyclic Prefix (Normal Cyclic Prefix) and Extended Cyclic Prefix (Extended Cyclic Prefix), respectively, and specific values of the SLIV value are shown in table 5, where table 5 is a Valid combination of S and L pairs (Valid S and L combinations).

TABLE 5

As can be seen from table 5, there are two ways to allocate time domain resources: type A and Type B. In short, the difference between Type a and Type B is that the candidate values of S and L are different for the two ways. Type a is mainly oriented to slot-based services, S is earlier than L, and L is longer than S. Type B is mainly oriented to the service of high-reliability low-latency communications (URLLC), and has a high requirement on latency, so the location of S is relatively random to transmit the URLLC service that arrives at any time, L is short, and transmission latency can be reduced.

There are two ways of frequency domain resource allocation for PDSCH: type0 and Type 1. The frequency domain resource allocation method of Type0 has a concept of Resource Block Group (RBG), which is called an RBG (RB group) by combining several RBs, and more specifically, how many RBs are called an RBG by combining, which is related to Radio Resource Control (RRC) Configuration (Configuration 1 and Configuration 2) and wideband component BWP Size (Bandwidth dtpart Size), as shown in table 6, where table 6 is the Size p (nominal RBG Size p) of a nominal RBG.

TABLE 6

BWP size	Configuration	1	Arrangement 2
1–36	2	4
37–72	4	8
73–144	8	16
145–275	16	16

Optionally, each RBG may have a 1-bit correspondence, and if the bit is set to 1, it indicates that the RBG is allocated to the PDSCH. Assuming that the bandwidth of BWP is 14 RBs, the RRC configures RBG Configuration 1, and look up table 6, the available RBG size is 2. Fig. 3 is a schematic diagram illustrating RBG-based frequency domain resource allocation. Referring to fig. 3, the RBG of the padding portion indicates an RBG allocated to the terminal device, and at this time, the frequency domain resource allocation may be indicated by "0101010".

It can be appreciated that the resource allocation of Type0 supports both continuous allocation and non-continuous frequency domain resource allocation.

The Type1 frequency domain resource allocation method jointly encodes the starting position (S) and the length (L) of the resource to form a Resource Indication Value (RIV). Wherein, a group (S, L) and an RIV are in one-to-one correspondence, and the terminal equipment can deduce the corresponding (S, L) through the RIV.

For example, fig. 4 is a schematic diagram of frequency domain resource allocation of Type 1. Referring to fig. 4, assuming that S is 2 and L is 7 are determined according to the RIV, the starting RB of the frequency allocation is RB No. 2 (the third RB, from bottom to top), and then 7 RBs are continuously occupied.

It can be understood that the frequency domain resource allocation of Type1 can only allocate consecutive frequency domain resources.

Further, briefly introduce the following description that in the conventional NR system, the network device indicates, through DCI format 1_0, the resource distribution of the scheduling information of the PDSCH carrying SIB 1:

in the existing NR system, the network device indicates scheduling information of a PDSCH carrying the SIB1 through DCI format 1_0, and at this time, the frequency domain resource allocation method adopts type 1. Specifically, the number of bits occupied by the scheduling information of the PDSCH specifically is:

bit number occupied by frequency domain resource allocation informationIs composed of

Wherein the content of the first and second substances,

bandwidth, i.e. the number of resource blocks (bandwidth) of the downstream bandwidth part, which is the bandwidth of CORESET 0;

the time domain resource allocation information occupies 4 bits; the mapping mode from the virtual RB to the physical RB occupies 1 bit; the modulation coding mode occupies 5 bits; the redundant version occupies 2 bits; the system message indicates that 1bit is occupied; the reserved bits are 15 bits.

In the conventional NR system, CORESET 0 is indicated by 4bits in MIB information, which means a control resource set of type0PDCCH, including the number of RBs and the number of symbols of CORESET 0, and a frequency domain position, i.e., RB offset compared to SSB.

In the conventional NR system, when DCI format 1_0 indicates time domain resource allocation information of a PDSCH carrying SIB1, the time domain resource allocation information includes 4bits for indicating a starting symbol S and a length L of the PDSCH in a scheduling slot. Optionally, when table 7 is the normal CP, the time domain resource allocation information of the type a PDSCH is default. Referring to table 7, 4bits of information are used to indicate 16 index values, each of which corresponds to a combination of a start symbol S and a length L.

TABLE 7

In the existing NR system, the time slot in which the PDSCH is located is determined by the time slot in which the PDCCH is detected by the terminal and the value of K0 indicated in the DCI. K0-0 indicates that the PDCCH and its scheduled PDSCH are in the same time slot.

Illustratively, the PDCCH-ConfigSIB1 information field in the MIB information carried by the PBCH further includes Search space 0 information of type0PDCCH, where the Search space 0 information is used to determine monitoring occasions of type0PDCCH, and each monitoring occasion includes two consecutive slots for monitoring. And the terminal equipment detects the PDCCH on the time slot corresponding to the monitoring opportunity, and if the DCI of the PDSCH carrying the SIB1 is detected, the time slot where the PDSCH is transmitted is determined according to the K0 information in the DCI.

NR-light system

The NR system is designed mainly to support enhanced mobile broadband (eMBB) service, and can satisfy the needs of high-rate, high-spectrum-efficiency, and large-bandwidth service. In fact, in addition to the eMBB, there are many different service types in practical applications, such as sensor networks, video surveillance, wearable, etc., which have different requirements in terms of rate, bandwidth, power consumption, cost, etc. from the eMBB service. The terminal supporting the above-described service has a lower capability, e.g., a reduced supported bandwidth, relaxed processing time, reduced number of antennas, etc., as compared to a terminal supporting the eMBB. In practical applications, the NR system is optimized for these services and the corresponding low-capability terminals, and the optimized system is called NR-light system.

Currently, in the initial access process of the existing NR technology, a terminal device receives CORESET and search space information of a type0PDCCH through an MIB, so as to receive an SIB1 through receiving a type0PDCCH, that is, if the terminal device wants to receive the SIB1, it needs to detect a type0PDCCH first, and then obtain scheduling information of a PDSCH carrying the SIB1, but for a terminal supporting low power, there are problems of large power consumption of the terminal and complex detection.

In view of the above problems, an embodiment of the present application provides an information transmission method, in which a network device (base station) first determines scheduling information of a data channel, and the data channel carries a system message, and then sends indication information of the scheduling information through a physical broadcast channel, and correspondingly, a terminal device determines the scheduling information of the data channel according to the indication information received through the physical broadcast channel.

Specifically, the technical concept of the technical scheme of the application is as follows: since some terminals designed to support a large number of connections, low power consumption, and low cost are already available in the LTE system, such as MTC, narrowband internet of things (NB-IoT), in the NR-light system, the procedure for the terminal to receive SIB1 can be simplified with reference to the MTC system, for example, the terminal can obtain scheduling information of the PDSCH carrying SIB1 without detecting type0 PDCCH. Therefore, how to obtain the scheduling information of the PDSCH carrying the SIB1 in the NR-light system is a technical problem to be solved by the present application.

The technical solution of the present application will be described in detail below with reference to specific examples. It should be noted that the technical solutions of the present application may include some or all of the following contents, and the following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

Fig. 5 is an interaction diagram of a first embodiment of an information transmission method provided in the present application. The method is explained by information interaction of terminal equipment and network equipment. Referring to fig. 5, in the present embodiment, the method may include the steps of:

s501, the network equipment determines the scheduling information of a data channel, and the data channel bears system information.

In the embodiment of the present application, when the network device and the terminal device perform information transmission, the system message, for example, SIB1, SIB2, SIB3 to SIB9, etc., is carried through a data channel. The following briefly introduces some messages from SIB1, SIB2, SIB3 to SIB9, and details of the content or function specifically included in each of the above messages are not described herein again.

Illustratively, SIB1, also referred to as a scheduling block, may carry some cell selection information; the SIB2 contains information such as common channels and pilots; the SIB3 contains cell reselection parameters and the like.

It is to be understood that the system message elements are broadcast in a "System Information Block (SIB)". One system information block may combine system information elements having the same properties and different system information blocks may have different characteristics.

In an embodiment of the present application, during a communication process between a network device and a terminal device, the network device may send configuration information, for example, scheduling information of a data channel, to the terminal device. Therefore, the network device first needs to determine what scheduling information of the data channel is, for example, the scheduling information of the data channel includes frequency domain resource information, time domain resource information, a mapping manner from a virtual RB to a physical RB, a modulation coding manner, a redundancy version, a retransmission number, and the like.

S502, the network equipment sends the indication information of the scheduling information through a physical broadcast channel.

In this embodiment, the network device may not transmit the scheduling information of the data channel through the PDCCH, but may carry the scheduling information through the physical broadcast channel PBCH. Specifically, after determining at least one type of scheduling information, the network device may send the indication information of the scheduling information through the PBCH, so that the terminal device may determine the corresponding scheduling information according to the received indication information.

It should be noted that the frequency domain resource information may indicate frequency domain resource information occupied by the terminal device and the network device when performing data transmission, and the time domain resource information may indicate time domain resource information occupied by the terminal device and the network device when performing data transmission. The terminal device and the network device perform data transmission, and first need to determine the two types, so that the scheduling information corresponding to the indication information carried by the network device through the PBCH needs to include at least one of frequency domain resource information and time domain resource information.

For example, in an embodiment of the present application, the network device sends the indication information of the frequency domain resource information through PBCH; in another embodiment of the present application, a network device sends indication information of time domain resource information through a PBCH; in still another embodiment of the present application, the network device sends the frequency domain resource information, the indication information of the time domain resource information, and the like through the PBCH.

It may be understood that, in this embodiment of the present application, specific content of the scheduling information sent by the PBCH is not limited, for example, in some scenarios, the network device may also send indication information of information such as a modulation coding scheme and/or a redundancy version and the like by the PBCH, and the specific content of the scheduling information sent by the PBCH may be determined according to an actual situation, and is not described herein again.

For example, in the embodiment of the present application, the indication information of the scheduling information is mainly information for indicating the scheduling information. For example, the indication information of the frequency domain resource information may be at least one of information such as a bandwidth of the data channel, frequency domain position information of the bandwidth, and frequency domain resource allocation information in the bandwidth, and the indication information of the time domain resource information may be at least one of information such as a time slot in which the data channel is located, a start symbol and the number of symbols in the time slot. The indication information of different scheduling information is different, and may be determined according to actual conditions, and the embodiment of the present application does not limit the indication information.

For example, the specific implementation of this step may refer to the following description in the embodiments shown in fig. 6 and fig. 10, and details are not repeated here.

S503, the terminal equipment determines the scheduling information of the data channel according to the indication information received through the physical broadcast channel.

In the embodiment of the application, after the network device sends the indication information of the scheduling information through the physical broadcast channel, the terminal device may correspondingly receive the indication information through the physical broadcast channel, determine the corresponding scheduling information according to the indication information, and determine all scheduling information of the data channel based on the determined scheduling information and/or the preset information.

For example, if the indication information is indication information of frequency domain resource information, the terminal device may first determine the frequency domain resource information of the data channel according to the indication information, and then determine other information included in the scheduling information of the data channel based on preset information or a corresponding relationship between at least one of the frequency domain resource information and the other information. If the indication information is the indication information of the time domain resource information, the terminal device may first determine the time domain resource information of the data channel according to the indication information, and then determine other information included in the scheduling information of the data channel based on the preset information or the corresponding relationship between at least one of the time domain resource information and the other information.

It may be understood that the other information in this embodiment may be other information, except for the scheduling information corresponding to the indication information, in the scheduling information included in the data channel, and a specific representation form of the other information may be determined according to an actual situation, which is not described herein again.

In the information transmission method provided in the embodiment of the present application, a network device determines scheduling information of a data channel, where the data channel carries a system message and sends indication information of the scheduling information through a physical broadcast channel, and a terminal device determines the scheduling information of the data channel according to the indication information received through the physical broadcast channel, where the scheduling information includes at least one of frequency domain resource information and time domain resource information. In the technical scheme, the terminal equipment can also receive the time domain resource information and/or the frequency domain resource information of the data channel carrying the system message without detecting the control channel, so that the power consumption and the detection complexity of the terminal equipment are reduced.

Exemplarily, on the basis of the above embodiments, fig. 6 is an interaction schematic diagram of a second embodiment of the information transmission method provided by the present application. When the frequency domain resource information is carried through the physical broadcast channel, as shown in fig. 6, the above S502 may be implemented by the following steps:

s601, the network equipment determines the frequency domain indication information of the frequency domain resource information.

Wherein the frequency domain indication information comprises at least one of the following information: the first bandwidth, the frequency domain position information of the first bandwidth, and the frequency domain resource allocation information in the first bandwidth.

In the embodiment of the present application, after the network device determines the scheduling information of the data channel, for the frequency domain resource information included in the scheduling information, the frequency domain indication information of the frequency domain resource information may be determined first.

For example, the frequency domain indication information may include at least one of the following information: the data channel comprises a first bandwidth where the data channel is located, frequency domain position information of the first bandwidth, and frequency domain resource allocation information in the first bandwidth. That is, the network device may use at least one of the first bandwidth in which the data channel is located, the frequency domain location information of the first bandwidth, and the frequency domain resource allocation information within the first bandwidth as the indication information of the frequency domain resource information.

For example, in an embodiment of the present application, the frequency domain indication information includes one of a first bandwidth where a data channel is located, frequency domain location information of the first bandwidth, frequency domain resource allocation information within the first bandwidth, and the like; in another embodiment of the present application, the frequency domain indication information may include two of a first bandwidth in which a data channel is located, frequency domain location information of the first bandwidth, frequency domain resource allocation information within the first bandwidth, and the like; in yet another embodiment of the present application, the frequency domain indication information may include all of the first bandwidth where the data channel is located, frequency domain location information of the first bandwidth, frequency domain resource allocation information within the first bandwidth, and the like.

It can be understood that, in the embodiment of the present application, specific content included in the frequency domain indication information and the number of the specific content are not limited, and may be determined according to an actual situation, and are not described herein again.

Optionally, in an embodiment of the present application, a frequency domain resource allocation manner of the frequency domain resource allocation information is type 1.

As an example, the frequency domain resource allocation information includes: the number of resource blocks or the number of groups of resource blocks.

As another example, the frequency domain resource allocation information includes: the number of resource blocks and the position information of the initial resource block; or, the frequency domain resource allocation information includes: the number of resource block groups and the location information of the starting resource block group.

Specifically, the following describes how the network device indicates the frequency domain resource information of the PDSCH through the frequency domain indication information carried by the PBCH, and the PDSCH may carry system messages such as SIB 1.

In this embodiment, in order to indicate the frequency domain resource information of the PDSCH carrying the SIB1 through PBCH, the network device first needs to obtain frequency domain indication information, that is, the first bandwidth occupied by the data channel and the frequency domain location information of the first bandwidth, and the frequency domain resource allocation information in the first bandwidth. Alternatively, the specific design of the frequency domain indication information may refer to the record in the existing NR system, that is, the first wideband is similar to the bandwidth in the CORESET 0 information, the frequency domain location information of the first bandwidth is similar to the frequency domain location information of the bandwidth in the CORESET 0 information, and the frequency domain resource allocation information in the first wideband is similar to the frequency domain resource allocation information of type1 in the bandwidth in the CORESET 0 information. In the NR system, as shown in table 1, there are 7 combinations of the bandwidth and the frequency domain position of CORESET 0, that is, { RB number, RB offset } - {24,0}, {24,2}, {24,4}, {48,12}, {48,16}, {96,38 }.

In an embodiment of the present application, the network device may perform joint encoding on the first bandwidth and the frequency domain location information of the first bandwidth, so as to represent a value combination of the first bandwidth and the frequency domain location information of the first bandwidth. Optionally, for the case that the combination of the first bandwidth and the frequency domain location information of the first bandwidth has 7 possibilities, 3 bits are needed to represent the information of the value combination, and then the information is carried by the PBCH.

It is understood that the combination of the above 7 possibilities is an example under a specific parameter, and there are other possibilities for combining the first bandwidth and the frequency domain position information of the first bandwidth under different parameters, and accordingly, the number of information bits for representing the value combination is also different.

In this embodiment, the PBCH further needs to carry frequency domain resource allocation information in the first wideband, and optionally, the wideband according to the CORESET 0 in the existing NR system may include 24RB, 48RB, and 96RB, and the first bandwidth of the frequency domain indication information

24RB, 48RB, 96RB may also be included. In the first bandwidth

When 96RB is included, according to

The frequency domain resource allocation information corresponding to 96 RBs obtained by calculation needs 13 bits, and the resource occupied by the 13 bits is too large when the 13 bits are carried by the PBCH. Thus, in this embodiment, the granularity of frequency domain resource allocation may be increased, such as resource allocation using a defined RBG, and the number of RBs included in the first bandwidth of the frequency domain indication information may be divided into several number of RBGs.

For example, for 96 RBs included in the first bandwidth, if one RBG includes 4 RBs, the 96 RBs are 24 RBGs, and when frequency domain resource allocation is performed with the RBGs as granularity, the resource allocation is performed according to the resource allocation rule

It is calculated that 9 bits are required for the frequency domain resource allocation information. That is, in this embodiment, the total number of combinations can be determined for the number of any starting RB or RBG + any RB or RBG within the first bandwidth, and the required number of bits can be calculated from the above equation.

Optionally, as an example, the frequency domain resource allocation information may only include the number of RBs or RBGs of the frequency domain resource allocation. Alternatively, the location of each RB or each RBG within the first bandwidth may be predefined.

Optionally, as another example, the frequency domain resource allocation information may include the number of RBs/RBGs of the frequency domain resource allocation and a starting RB/RBG of the frequency domain resource. For example, the number of RBs and the value of the starting RB may be combined, and the combination of the number of RBs and the starting RB is a limited number. The number of RBGs and the value of the initial RBG can also adopt a combined form, wherein the combination of the number of RBGs and the initial RBG is also a limited number. The allocation formula of the embodiment sacrifices the flexibility of frequency domain resource allocation, but reduces the bit number required by the frequency domain resource allocation information and reduces the resource consumption.

For example, taking the first bandwidth in which the data channel is located as 96 RBs as an example, the frequency-domain resource allocation information may be combined in the form of { number of allocated RBs, starting RB } - {96,0}, {48,24}, {48,47}, {24,0}, {24,16}, and {24,32}, so that only 3 bits of information are required for the frequency-domain resource allocation information. In this embodiment, in combination with the combination of the first bandwidth and the frequency domain position information of the first bandwidth, the number of bits required for the number of RBs and the starting RB may be further reduced, for example, when the number of RBs and the starting RB is one of {24,0}, {24,2}, {24,4}, the number of allocated RBs and the starting RB can only be {24,0}, {24,16}, {24,32}, i.e., the number of allocated RBs must be smaller than or equal to the number of RBs included in the first bandwidth.

In the embodiment of the application, by setting the allocation granularity of the frequency domain resource allocation information, the bit number of the information carried by the PBCH can be reduced, and the information redundancy carried by the PBCH is reduced.

Further, in an embodiment of the present application, for the frequency domain resource information, the first bandwidths on different time units are the same, and the frequency domain locations of the first bandwidths on different time units are the same.

Illustratively, fig. 7 is a schematic diagram of a distribution of a first bandwidth and a frequency domain position of the first bandwidth where a data channel is located. The diagram is illustrated with a first bandwidth and the frequency domain location of the first bandwidth over three time slots (time slot 1 to time slot 3). Referring to fig. 7, the first bandwidths on the slots 1 to 3 are the same, and the frequency domain locations of the first bandwidths on the slots 1 to 3 are the same.

In this embodiment, by setting that the first bandwidths on different time units are the same, and the frequency domain positions of the first bandwidths on different time units are the same, the indicating difficulty of the frequency domain indicating information can be reduced, and further, the resources required by resource allocation are reduced.

In another embodiment of the present application, for the frequency domain resource information, the first bandwidths on the at least two time units are different, and/or the frequency domain locations of the first bandwidths on the at least two time units are different.

Alternatively, in the embodiments of the present application, the scheme may be interpreted as the following case: first, the first bandwidths on at least two time units are different; second, the frequency domain locations of the first bandwidths on the at least two time units are different; third, the first bandwidths over the at least two time units are different and the frequency domain locations of the first bandwidths over the at least two time units are different.

The first bandwidths in the at least two time units are different from each other, and the frequency domain locations of the first bandwidths in the at least two time units are different from each other.

Illustratively, fig. 8 is another distribution diagram of the first bandwidth and the frequency domain position of the first bandwidth where the data channel is located. Similar to fig. 7, the diagram is still illustrated with the first bandwidth and the frequency domain location of the first bandwidth over three slots (slot 1 to slot 3). Referring to fig. 8, the first bandwidths in the

time slots

1 and 2 are the same, but the first bandwidth in the time slot 3 is different from the first bandwidths in the

time slots

1 and 2, the frequency domain positions of the first bandwidths in the

time slots

1 and 2 are the same, and the frequency domain position of the first bandwidth in the time slot 3 is different from the frequency domain positions of the first bandwidths in the

time slots

1 and 2.

Illustratively, fig. 9 is a schematic diagram of a first bandwidth in which a data channel is located and a further distribution of frequency domain locations of the first bandwidth. The diagram is still illustrated with the first bandwidth and the frequency domain location of the first bandwidth over three time slots (time slot 1 to time slot 3). Referring to fig. 9, the first bandwidths at the

time slots

1,2, and 3 are all different, and the frequency domain locations of the first bandwidths at the

time slots

1,2, and 3 are all different.

Therefore, in this embodiment, the frequency domain indication information may indicate that the frequency domain position on the first bandwidth is also capable of performing frequency hopping over time, that is, the frequency domain positions of the first bandwidth on different time units are different, may also indicate that the frequency domain positions of the first bandwidth on different time units are the same, and may also indicate that the frequency domain positions on the first bandwidth and the first bandwidth on different time units are not the same.

The embodiment of the present application does not limit the specific relationship between the first bandwidth and the frequency domain position of the first bandwidth in different time units, and may be determined according to the actual situation, which is not described herein again.

S602, the network equipment sends indication information including the frequency domain indication information through a physical broadcast channel.

In the embodiment of the present application, after determining the frequency domain indication information according to the step of S601, the network device may broadcast the frequency domain indication information through the PBCH.

Accordingly, in the embodiment of the present application, as shown in fig. 6, the above S503 may be implemented by the following steps:

s603, the terminal equipment determines the frequency domain indication information of the frequency domain resource information according to the indication information.

In the embodiment of the present application, when receiving indication information sent by a network device through a PBCH, a terminal device may determine frequency domain indication information of the frequency domain resource information by analyzing the indication information.

Illustratively, in this embodiment, the frequency domain indication information includes at least one of the following information: the first bandwidth, the frequency domain position information of the first bandwidth, and the frequency domain resource allocation information in the first bandwidth.

Specific implementation of each piece of information included in the frequency domain indication information can be described in S601, and is not described herein again.

And S604, the terminal equipment determines the frequency domain resource information of the data channel according to the frequency domain indication information.

In the embodiment of the present application, when the terminal device determines the frequency domain indication information of the frequency domain resource information, the frequency domain resource information of the data channel may be determined based on the frequency domain indication information. Optionally, the frequency domain resource information includes at least one of the following information: the first bandwidth, the frequency domain position information of the first bandwidth, and the frequency domain resource allocation information in the first bandwidth.

For example, when the frequency domain indication information is at least one of the first bandwidth, the frequency domain position information of the first bandwidth, and the frequency domain resource allocation information within the first bandwidth, other unknown frequency domain resource information may be determined based on the known information.

Further, in the embodiment of the present application, the network device carries frequency domain resource information of the PDSCH through the PBCH, and if the time domain resource information of the PDSCH is not carried through the PBCH, the time domain resource information may be indicated through preset information or a predefined manner.

For example, in this embodiment, the time domain resource information of the data channel is indicated by preset first information.

Wherein the first information comprises at least one of the following information: radio frame number, time slot number, cell identification, synchronous signal block index, retransmission times, initial symbol and symbol number of the time slot in which the data channel is positioned, and time slot indication information. The time domain resource information includes at least one of the following information: the time slot of the data channel, the initial symbol and the number of the symbols of the data channel in the time slot.

Optionally, in this embodiment, the radio frame number may be a number of a radio frame in which the data channel is located, the timeslot number is a number of a timeslot in which the data channel is located, the cell identifier may be an identifier of a cell in which the terminal device is located, the synchronization signal block index may be an index value of a synchronization signal block used for information interaction between the terminal device and the network device, and the retransmission times may refer to times that the terminal device performs retransmission this time and the retransmission this time.

The slot indication information may be a parameter for calculating slot information, such as a period and an offset of a slot in which a data channel is located, a time offset between the slot and the PBCH, and the like. The specific embodiment of the timeslot indication information may be determined according to actual situations, and is not described herein again.

Illustratively, at least one of the time domain resource information and the frequency domain resource information has a corresponding relationship.

For example, the network device may indicate the time domain resource allocation information in a predefined manner, for example, a time slot in which the PDSCH is located has a corresponding relationship with a specific composition of the time slot, or the specific composition of the time slot may be a combination of a start symbol S and a length L in a fixed scheduling time slot, or the combination of the start symbol S and the length L has a corresponding relationship with the frequency domain resource information in the scheduling information, for example, a value of one kind of frequency domain resource information of the PDSCH carried by the PBCH corresponds to one kind of time domain resource allocation information.

Correspondingly, in the embodiment shown in fig. 6, the information transmission method may further include the following steps:

s605, the terminal equipment determines the time domain resource information of the data channel according to the preset first information.

Wherein the first information comprises at least one of the following information: radio frame number, time slot number, cell identification, synchronous signal block index, retransmission times, initial symbol and symbol number of the time slot in which the data channel is positioned, and time slot indication information.

The time domain resource information includes at least one of the following information: the time slot of the data channel, the initial symbol and the number of the symbols of the data channel in the time slot.

In this embodiment, when the terminal device and the network device agree in advance to determine the first information of the time domain resource information, and when the time domain resource information of the data channel is not carried by the PBCH, the terminal device may calculate the time domain resource information of the data channel based on the preset first information.

Optionally, the information included in the first information has a certain corresponding relationship with the time domain resource information, so that when the terminal device obtains or determines at least one of the first information, the time domain resource information may be determined based on the corresponding relationship between the first information and the time domain resource information.

For example, the time domain resource information of the data channel refers to a time domain resource occupied by the data channel, and may include a time unit in which the data channel is located, for example, a time slot, and also may include a starting symbol and a number of symbols in the time unit (time slot) in which the data channel is located.

When the terminal device determines the scheduling information of the data channel based on the above steps, that is, the time domain resource information and the frequency domain resource information where the data channel is located, the time frequency resource required for data transmission between the terminal device and the network device can be determined.

In the information transmission method provided in this embodiment, the network device determines frequency domain indication information of the frequency domain resource information, and sends the indication information including the frequency domain indication information through a physical broadcast channel, and the terminal device determines the frequency domain indication information of the frequency domain resource information according to the indication information, and determines the frequency domain resource information of the data channel according to the frequency domain indication information. According to the technical scheme, the frequency domain resource information of the data channel carrying the system information can be sent between the terminal equipment and the network equipment through PBCH, the frequency domain resource information of the data channel carrying the system information can be received without detecting the control channel, and the power consumption and the detection complexity of the terminal equipment are reduced.

Exemplarily, on the basis of the foregoing embodiments, fig. 10 is an interaction schematic diagram of a third embodiment of the information transmission method provided in the present application. When the time domain resource information is carried through a physical broadcast channel, as shown in fig. 10, in this embodiment, the step S502 may be implemented by:

s1001, the network equipment determines time domain indication information of the time domain resource information.

Wherein, the time domain indication information includes at least one of the following information: the time slot of the data channel, the initial symbol and the length of the time slot of the data channel.

In the embodiment of the present application, after the network device determines the scheduling information of the data channel, for the time domain resource information included in the scheduling information, the time domain indication information of the time domain resource information may be determined first.

Optionally, the time domain indication information includes at least one of the following information: the time slot of the data channel, the starting symbol and the length of the time slot of the data channel. That is, the time domain indicating information includes the time slot where the data channel is located, or the time domain indicating information includes the start symbol and length in the time slot where the data channel is located, or the time domain indicating information includes the time slot where the data channel is located and the start symbol and length in the time slot where the data channel is located.

It can be understood that, in the embodiment of the present application, specific content included in the time domain indication information is not limited, and may be determined according to an actual situation, which is not described herein again.

The following describes how the network device indicates the time domain resource information of the PDSCH through the time domain indication information carried by the PBCH, and the PDSCH may carry system messages such as SIB 1.

In this embodiment, the time domain resource information carried by the PBCH may include time domain resource allocation information, and at this time, the network device may multiplex 4bits of time domain resource allocation information in the existing NR system. Optionally, in the NR-light system, when the network device carries the time domain resource information through the PBCH, the combination of the starting symbol S and the length L included in the timeslot where the data channel is located may be limited, so as to reduce the bit number of the time domain resource allocation information.

In this embodiment, the time domain resource information carried by the PBCH further includes timeslot information where the PDSCH carrying the SIB1 is located. Specifically, the network device may multiplex the Search space 0 information of the existing type0PDCCH, and use the time slot set indicated by the Search space 0 information as the time slot in which the PDSCH is transmitted.

Optionally, for the NR-light system, the network device may further limit a value combination included in the Search space 0 information, so as to reduce the bit number of the time slot information of the PDSCH.

S1002, the network device sends the indication information including the time domain indication information through a physical broadcast channel.

In the embodiment of the present application, after determining the time domain indication information according to the step of S1001, the network device may broadcast the time domain indication information through the PBCH.

Accordingly, in the embodiment of the present application, referring to fig. 10, the above S503 may be implemented by the following steps:

s1003, the terminal equipment determines the time domain indication information of the time domain resource information according to the indication information.

Wherein the time domain indication information includes at least one of the following information: a time slot in which the data channel is located, a starting symbol and a length in the time slot in which the data channel is located.

In the embodiment of the present application, when receiving indication information sent by a network device through a PBCH, a terminal device may determine time domain indication information of the time domain resource information by analyzing the indication information.

Illustratively, in this embodiment, the time domain indication information includes at least one of the following information: the time slot of the data channel, the initial symbol and the length of the time slot of the data channel. That is, in some scenarios, the time domain indication information may only include the time slot in which the data channel is located in the information or the start symbol and length in the time slot in which the data channel is located, and in other scenarios, the time domain indication information may include both the time slot in which the data channel is located and the start symbol and length in the time slot in which the data channel is located.

For specific implementation of each piece of information included in the time domain indication information, reference may be made to the descriptions in the foregoing embodiments, and details are not described here again.

S1004, the terminal equipment determines the time domain resource information of the data channel according to the time domain indication information.

Optionally, in an embodiment of the present application, when receiving time domain indication information of a time domain resource, for example, a time slot in which a data channel is located, a starting symbol and a length in the time slot in which the data channel is located, the terminal device may determine the time domain resource information of the time domain data channel based on at least one of the information.

Optionally, when the time domain resource information includes information of a time slot in which the data channel is located, that is, information of a time slot in which the PDSCH is located, and is not carried by the PBCH, the information of the time slot in which the data channel is located may be determined according to at least one of the following information:

radio frame number, time slot number, cell identification, synchronous signal block index, retransmission times and time slot indication information.

For the introduction of the above information, reference may be made to the descriptions in steps S604 and S605 in the embodiment shown in fig. 6, and details thereof are not repeated here.

Further, in the embodiment of the present application, the network device carries the time domain resource information of the PDSCH through the PBCH, and if the frequency domain resource information of the PDSCH is not carried through the PBCH, the frequency domain resource information may be indicated through preset information or a predefined manner.

For example, in the present embodiment, the frequency domain resource information of the data channel is indicated by the preset second information.

Wherein the second information comprises at least one of the following information: the frequency domain position information of the synchronous signal block, the resource quantity contained in the frequency domain resource of the data channel, the frequency domain resource position contained in the frequency domain resource of the data channel and the frequency domain offset information. The frequency domain resource information includes at least one of the following information: the first bandwidth, the frequency domain position information of the first bandwidth, and the frequency domain resource allocation information in the first bandwidth.

Optionally, in this embodiment, the frequency domain location information of the synchronization signal block may enable the network device and the terminal device to perform communication using the location information of the beam; the frequency domain resources of the data channel include the number of resources, e.g., the number of RBs or the number of RBGs; the frequency domain resource position contained in the frequency domain resource of the data channel refers to the position information of the frequency domain resource in the first bandwidth; the frequency domain offset information may be a parameter for calculating frequency resources, for example, a frequency domain offset between frequency domain resource information of a data channel and a frequency domain position of a synchronization signal block, or the like. The specific embodiment of the frequency domain offset information may be determined according to the actual situation, and will not be described herein again

Illustratively, in the embodiment of the present application, at least one of the frequency domain resource information and the time domain resource information has a corresponding relationship.

For example, the time domain resource information of the PDSCH is carried through the PBCH, but the frequency domain resource information of the PDSCH is not carried through the PBCH, but is determined according to other information or a predefined manner. For example, the frequency domain resource location of the PDSCH is determined according to the frequency domain location of the SSB and a predefined manner; the frequency domain resource of the PDSCH includes a predefined number of RBs, such as 24 RBs or 20 RBs.

For another example, the number of RBs and/or the location of the frequency domain resource included in the frequency domain resource of the PDSCH may also have a corresponding relationship with the time domain resource information of the PDSCH carried by the PBCH. For example, a value of a time domain resource information of the PDSCH carried by the PBCH corresponds to a frequency domain resource allocation information.

Optionally, in the embodiment shown in fig. 10, the information transmission method may further include the following steps:

s1005, the terminal device determines, according to the preset second information, frequency domain resource information of the data channel.

Wherein the second information comprises at least one of the following information: the frequency domain position information of the synchronization signal block, the number of resources contained in the frequency domain resource of the data channel, the position of the frequency domain resource contained in the frequency domain resource of the data channel, and the frequency domain offset information. The frequency domain resource information includes at least one of the following information: the first bandwidth, the frequency domain position information of the first bandwidth, and the frequency domain resource allocation information in the first bandwidth.

In this embodiment, when the terminal device and the network device agree in advance for determining the second information of the frequency domain resource information, and when the frequency domain resource information of the data channel is not carried by the PBCH, the terminal device may calculate the frequency domain resource information of the data channel based on the preset second information.

For example, the frequency domain resource information of the data channel refers to frequency domain resources occupied by the data channel, and may include a first bandwidth where the data channel is located, frequency domain position information of the first bandwidth, frequency domain resource allocation information within the first bandwidth, and the like.

In the information transmission method provided in the embodiment of the present application, the network device determines time domain indication information of the time domain resource information, and sends the indication information including the time domain indication information through the physical broadcast channel, so that the terminal device determines the time domain indication information of the time domain resource information according to the indication information, and further determines the time domain resource information of the data channel according to the time domain indication information, and further determines the frequency domain resource information of the data channel according to preset second information when the physical broadcast channel does not carry the frequency domain resource information of the data channel. In the technical scheme, the time domain resource indication of the data channel carrying the SIB1 is realized through PBCH, the time domain resource information of the PDSCH does not need to be detected, and the power consumption and the detection complexity of the terminal equipment are reduced.

It may be understood that, in this embodiment of the present application, scheduling information of a data channel carried by a PBCH is not limited, the embodiment shown in fig. 6 mainly introduces a scheme of frequency domain resource information of the data channel carried by the PBCH, and the embodiment shown in fig. 10 mainly introduces a scheme of time domain resource information of the data channel carried by the PBCH, in other embodiments of the present application, a network device may carry the frequency domain resource and the time domain resource information of the data channel by the PBCH, and specific implementation of the frequency domain resource and the time domain resource information of the data channel carried by the PBCH may be combined with the description of the embodiments shown in fig. 6 and fig. 10, and is not repeated herein.

Further, in an embodiment of the present application, the scheduling information of the data channel carried by the PBCH further includes at least one of the following information:

a mapping mode from a virtual resource block to a physical resource block, a modulation coding mode, redundant version information and retransmission times.

For example, in this embodiment, assuming that one of the scheduling information is not carried by the PBCH, the information needs to satisfy at least one of the following conditions:

the information is pre-configured, the first information has a corresponding relationship with time domain resource information or frequency domain resource information carried by a physical broadcast channel, and the information has a corresponding relationship with other information included in the scheduling information.

For example, the scheduling related information of the PDSCH may or may not be carried by the PBCH, and further includes a mapping manner from virtual RBs to physical RBs, a modulation coding manner, and a redundancy version.

For the mapping manner from the virtual RB to the physical RB, when the information is not carried by the PBCH, specifically, the mapping manner from the virtual RB to the physical RB may fixedly adopt an interleaving manner or a non-interleaving manner, or the mapping manner from the virtual RB to the physical RB has a corresponding relationship with time domain resource information or frequency domain resource information carried by the PBCH, or the mapping manner from the virtual RB to the physical RB has a corresponding relationship with a modulation coding manner, or the mapping manner from the virtual RB to the physical RB has a corresponding relationship with a redundancy version, or the mapping manner from the virtual RB to the physical RB has a corresponding relationship with the number of retransmissions of the PDSCH, and the like.

For the modulation and coding scheme, when the information is not carried by the PBCH, the modulation and coding scheme may adopt a fixed modulation and coding scheme, or the modulation and coding scheme has a corresponding relationship with time domain resource information or frequency domain resource information carried by the PBCH, or the modulation and coding scheme has a corresponding relationship with retransmission time information carried by the PBCH.

For the redundancy version, when the information is not carried by the PBCH, the redundancy version may adopt a fixed redundancy version, or the redundancy version has a corresponding relationship with time domain resource information or frequency domain resource information carried by the PBCH, or the redundancy version has a corresponding relationship with a modulation coding mode.

For the number of retransmissions of the PDSCH, when the information is not carried by the PBCH, the number of retransmissions of the PDSCH may be predefined, for example, fixedly set, or the number of retransmissions of the PDSCH may have a corresponding relationship with a frequency band, or the number of retransmissions of the PDSCH may have a corresponding relationship with time domain resource information or frequency domain resource information carried by the PBCH, or the number of retransmissions of the PDSCH may have a corresponding relationship with a modulation and coding scheme, or the number of retransmissions of the PDSCH may have a corresponding relationship with a redundancy version.

It can be understood that the embodiment of the present application does not limit the specific determination manner of each information, and the determination manner may be determined according to an actual scene and requirements, and is not described herein again.

In the information transmission method provided by the embodiment of the application, the PBCH may also carry scheduling information of the PDSCH except for time domain resource information and frequency domain resource information, so that a manner of not detecting the PDCCH and also obtaining relevant scheduling information is achieved, power consumption and detection complexity of the terminal device are reduced, transmission performance of the PDSCH is improved, another part of information included in the scheduling information is determined according to a part of information included in the scheduling information, the number of bits for the PBCH to carry the scheduling information is reduced, and information redundancy carried by the PBCH is reduced.

In the above, a specific implementation of the information transmission method mentioned in the embodiments of the present application is introduced, and the following is an embodiment of the apparatus of the present application, which can be used to implement the embodiments of the method of the present application. For details which are not disclosed in the embodiments of the apparatus of the present application, reference is made to the embodiments of the method of the present application.

Fig. 11 is a schematic structural diagram of an information transmission apparatus according to a first embodiment of the present disclosure. The device can be integrated in the terminal equipment and can also be realized by the terminal equipment. As shown in fig. 11, the apparatus may include: a receiving module 1101 and a processing module 1102.

Wherein, the receiving module 1101 is configured to receive indication information through a physical broadcast channel;

the processing module 1102 is configured to determine scheduling information of a data channel according to the indication information, where the data channel carries a system message, and the scheduling information includes at least one of frequency domain resource information and time domain resource information.

In a possible design of the embodiment of the present application, the processing module 1102 is specifically configured to determine frequency domain indication information of the frequency domain resource information according to the indication information, and determine frequency domain resource information of the data channel according to the frequency domain indication information;

Optionally, the frequency domain resource allocation manner of the frequency domain resource allocation information is type 1.

As another example, the frequency domain resource allocation information includes: the number of resource blocks and the position information of the initial resource block;

or alternatively

The frequency domain resource allocation information includes: the number of resource block groups and location information of the starting resource block group.

Illustratively, the first bandwidths over different time units are the same, and the frequency domain locations of the first bandwidths over different time units are the same.

Illustratively, the first bandwidths over at least two time units are different, and/or the frequency domain locations of the first bandwidths over at least two time units are different.

In this possible design of the present application, the processing module 1102 is further configured to determine, according to preset first information, time domain resource information of the data channel:

the first information includes at least one of the following information:

a wireless frame number, a time slot number, a cell identifier, a synchronous signal block index, retransmission times, a starting symbol and a symbol number of a time slot in which the data channel is positioned, and time slot indication information;

the time domain resource information includes at least one of the following information:

the time slot of the data channel, the initial symbol and the number of symbols of the data channel in the time slot.

Optionally, at least one of the time domain resource information and the frequency domain resource information has a corresponding relationship.

In another possible design of the embodiment of the present application, the processing module 1102 is specifically configured to determine time domain indication information of the time domain resource information according to the indication information, and determine time domain resource information of the data channel according to the time domain indication information;

wherein the time domain indication information includes at least one of the following information: the time slot of the data channel, the initial symbol and the length of the time slot of the data channel.

Optionally, the information of the time slot in which the data channel is located is determined according to at least one of the following information:

In this possible design of the present application, the processing module 1102 is further configured to determine the frequency domain resource information according to preset second information;

the second information includes at least one of the following information:

the frequency domain position information of the synchronous signal block, the number of resources contained in the frequency domain resources of the data channel, the position of the frequency domain resources contained in the frequency domain resources of the data channel, and the frequency domain offset information;

the frequency domain resource information includes at least one of the following information:

the first bandwidth, the frequency domain position information of the first bandwidth, and the frequency domain resource allocation information in the first bandwidth.

Optionally, at least one of the frequency domain resource information and the time domain resource information has a corresponding relationship.

In yet another possible design of the present application, the scheduling information further includes at least one of the following information:

a mapping mode from a virtual resource block to a physical resource block, a modulation and coding mode, redundant version information and retransmission times.

The apparatus provided in this embodiment is configured to execute the technical solution on the terminal device side in the embodiments shown in fig. 5, fig. 6, or fig. 10, and the implementation principle and the technical effect are similar, which are not described herein again.

Fig. 12 is a schematic structural diagram of a second embodiment of an information transmission device according to the present application. The device can be integrated in a network device, and can also be realized by the network device. As shown in fig. 12, the apparatus may include: a processing module 1201 and a sending module 1202.

The processing module 1201 is configured to determine scheduling information of a data channel, where the data channel carries a system message;

a sending module 1202, configured to send indication information of the scheduling information through a physical broadcast channel;

In a possible design of the embodiment of the present application, the processing module 1201 is further configured to determine frequency domain indication information of the frequency domain resource information, where the frequency domain indication information includes at least one of the following information: the method comprises the steps of obtaining a first bandwidth, frequency domain position information of the first bandwidth and frequency domain resource allocation information in the first bandwidth;

correspondingly, the sending module 1202 is further configured to send indication information including the frequency domain indication information through the physical broadcast channel.

or

The frequency domain resource allocation information includes: the number of resource block groups and the location information of the starting resource block group.

In one embodiment of the present application, the first bandwidths on different time units are the same, and the frequency domain locations of the first bandwidths on different time units are the same.

In another embodiment of the present application, the first bandwidths over at least two time units are different, and/or the frequency domain locations of the first bandwidths over at least two time units are different.

In this possible design of the embodiment of the present application, the time domain resource information of the data channel is indicated by preset first information;

the first information includes at least one of the following information:

a wireless frame number, a time slot number, a cell identification, a synchronous signal block index, retransmission times, an initial symbol and a symbol number of a time slot in which the data channel is positioned, and time slot indication information;

In another possible design of the embodiment of the present application, the processing module 1201 is further configured to determine time domain indicating information of the time domain resource information, where the time domain indicating information includes at least one of the following information: a time slot in which the data channel is located, and a starting symbol and a length in the time slot in which the data channel is located;

correspondingly, the sending module 1202 is configured to send the indication information including the time domain indication information through the physical broadcast channel.

Optionally, the information of the timeslot where the data channel is located is indicated by at least one of the following information:

In this possible design of the embodiment of the present application, the frequency domain resource information is indicated by preset second information;

the second information includes at least one of the following information:

In yet another possible design of the embodiment of the present application, the scheduling information further includes at least one of the following information:

The apparatus provided in this embodiment is configured to execute the technical solution on the network device side in the embodiments shown in fig. 5, fig. 6, or fig. 10, and the implementation principle and the technical effect are similar, which are not described herein again.

It should be noted that the division of the modules of the above apparatus is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these modules can be realized in the form of software called by processing element; or may be implemented entirely in hardware; and part of the modules can be realized in the form of calling software by the processing element, and part of the modules can be realized in the form of hardware. For example, the processing module may be a separate processing element, or may be integrated into a chip of the apparatus, or may be stored in a memory of the apparatus in the form of program code, and a processing element of the apparatus calls and executes the functions of the above determination module. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.

For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. For another example, when some of the above modules are implemented in the form of a processing element scheduler code, the processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor that can call program code. As another example, these modules may be integrated together, implemented in the form of a system-on-a-chip (SOC).

In the above embodiments, the implementation may be wholly or partially realized 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 loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. 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 via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

Fig. 13 is a schematic structural diagram of a terminal device provided in the present application. As shown in fig. 13, the terminal device may include: a processor 1301, memory 1302, a receiver 1303, and an interface 1304 to communicate with a network device.

Wherein the memory 1302 stores computer-executable instructions;

the processor 1301 executes the computer execution instruction stored in the memory 1302, so that the processor 1301 executes the technical solution of the terminal device side in the embodiment shown in fig. 5, fig. 6 or fig. 10.

Fig. 14 is a schematic structural diagram of a network device provided in the present application. As shown in fig. 14, the network device may include: a processor 1401, a memory 1402, a transmitter 1403, and an interface 1404 for communicating with the terminal device.

Wherein memory 1402 stores computer-executable instructions;

the processor 1401 executes the computer execution instruction stored in the memory 1402, so that the processor 1401 executes the technical solution of the network device side in the embodiments shown in fig. 5, fig. 6, or fig. 10.

It should be understood that the processor of the 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 performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The processor may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, or discrete hardware components.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory.

Fig. 15 is a schematic block diagram of a communication system according to an embodiment of the present application. As shown in fig. 15, the communication system 1500 includes a terminal apparatus 1501 and a network apparatus 1502.

The terminal device 1501 may be configured to implement the corresponding functions implemented by the terminal device in the above-described method, and the network device 1502 may be configured to implement the corresponding functions implemented by the network device in the above-described method. For specific implementation principles and beneficial effects of the terminal device and the network device, reference may be made to the descriptions in the foregoing embodiments, which are not described herein again.

The present application further provides a computer-readable storage medium, in which computer-executable instructions are stored, and when the computer-executable instructions are executed by a processor, the computer-readable storage medium is configured to implement the technical solution on the terminal device side in the embodiments shown in fig. 5, fig. 6, or fig. 10.

The present application further provides a computer-readable storage medium, in which computer-executable instructions are stored, and when the computer-executable instructions are executed by a processor, the computer-readable storage medium is configured to implement the technical solution on the network device side in the embodiments shown in fig. 5, fig. 6, or fig. 10.

The embodiment of the present application further provides a program, and when the program is executed by a processor, the program is configured to execute the technical solution of the terminal device in the embodiment shown in fig. 5, fig. 6, or fig. 10.

The embodiment of the present application further provides a program, and when the program is executed by a processor, the program is configured to execute the technical solution on the network device side (base station) in the embodiments shown in fig. 5, fig. 6, or fig. 10.

An embodiment of the present application further provides a computer program product, which includes program instructions, where the program instructions are used to implement the technical solution on the terminal device side in the embodiments shown in fig. 5, fig. 6, or fig. 10.

The embodiment of the present application further provides a computer program product, which includes program instructions, where the program instructions are used to implement the technical solution of the network device side (base station) in the embodiments shown in fig. 5, fig. 6, or fig. 10.

An embodiment of the present application further provides a chip, including: a processing module and a communication interface, wherein the processing module can execute the technical solution of the terminal device side in the embodiments shown in fig. 5, fig. 6 or fig. 10.

Further, the chip further includes a storage module (e.g., a memory), where the storage module is configured to store instructions, and the processing module is configured to execute the instructions stored by the storage module, and the execution of the instructions stored in the storage module causes the processing module to execute the technical solution on the terminal device side in the embodiment shown in fig. 5, fig. 6, or fig. 10.

An embodiment of the present application further provides a chip, including: a processing module and a communication interface, wherein the processing module can execute the technical solution of the network device side in the embodiments shown in fig. 5, fig. 6 or fig. 10.

Further, the chip further includes a storage module (e.g., a memory), where the storage module is configured to store instructions, and the processing module is configured to execute the instructions stored by the storage module, and the execution of the instructions stored in the storage module causes the processing module to execute the technical solution on the network device side in the embodiment shown in fig. 5, fig. 6, or fig. 10.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one type of logical functional division, and other divisions may be realized in practice, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

In the above Specific implementation of the terminal device and the network device, it should be understood that the Processor may be a Central Processing Unit (CPU), other general purpose processors, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present application may be embodied directly in a hardware processor, or in a combination of the hardware and software modules in the processor.

All or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The aforementioned program may be stored in a readable memory. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned memory (storage medium) includes: read-only memory (ROM), RAM, flash memory, hard disk, solid state disk, magnetic tape, floppy disk, optical disk, and any combination thereof.

Claims

An information transmission method, comprising:

receiving indication information through a physical broadcast channel;

and determining scheduling information of a data channel according to the indication information, wherein the data channel carries system information, and the scheduling information comprises at least one of frequency domain resource information and time domain resource information.
The method of claim 1, wherein the determining scheduling information of the data channel according to the indication information comprises:

according to the indication information, determining frequency domain indication information of the frequency domain resource information, wherein the frequency domain indication information comprises at least one of the following information: the method comprises the steps of obtaining a first bandwidth, frequency domain position information of the first bandwidth and frequency domain resource allocation information in the first bandwidth;

and determining the frequency domain resource information of the data channel according to the frequency domain indication information.
The method of claim 2, wherein the frequency domain resource allocation information is of type 1.
The method of claim 2 or 3, wherein the frequency domain resource allocation information comprises: the number of resource blocks or the number of groups of resource blocks.
The method of claim 2 or 3, wherein the frequency domain resource allocation information comprises: the number of resource blocks and the position information of the initial resource block;

or

The frequency domain resource allocation information includes: the number of resource block groups and location information of the starting resource block group.
The method of any of claims 2-5, wherein the first bandwidth over different time units is the same, and the frequency domain location of the first bandwidth over different time units is the same.
The method according to any of claims 2-5, wherein the first bandwidth is different over at least two time units and/or the frequency domain position of the first bandwidth is different over at least two time units.
The method according to any one of claims 2-7, further comprising:

determining time domain resource information of the data channel according to preset first information:

the first information includes at least one of the following information:

a wireless frame number, a time slot number, a cell identifier, a synchronous signal block index, retransmission times, a starting symbol and a symbol number of a time slot in which the data channel is positioned, and time slot indication information;

the time domain resource information includes at least one of the following information:

the time slot of the data channel, the initial symbol and the number of symbols of the data channel in the time slot.
The method of claim 8, wherein at least one of the time domain resource information and the frequency domain resource information has a corresponding relationship.
The method according to any of claims 1-7, wherein the determining the scheduling information of the data channel according to the indication information comprises:

according to the indication information, determining time domain indication information of the time domain resource information, wherein the time domain indication information comprises at least one of the following information: the time slot of the data channel, and the initial symbol and the length of the time slot of the data channel;

and determining the time domain resource information of the data channel according to the time domain indication information.
The method of claim 10, wherein the information of the time slot in which the data channel is located is determined according to at least one of the following information:

radio frame number, time slot number, cell identification, synchronous signal block index, retransmission times and time slot indication information.
The method according to claim 10 or 11, further comprising:

determining the frequency domain resource information according to preset second information;

the second information includes at least one of the following information:

the frequency domain position information of the synchronous signal block, the number of resources contained in the frequency domain resources of the data channel, the position of the frequency domain resources contained in the frequency domain resources of the data channel, and the frequency domain offset information;

the frequency domain resource information includes at least one of the following information:

the first bandwidth, the frequency domain position information of the first bandwidth, and the frequency domain resource allocation information in the first bandwidth.
The method of claim 12, wherein at least one of the frequency domain resource information and the time domain resource information has a corresponding relationship.
The method according to any of claims 1-13, wherein the scheduling information further comprises at least one of the following information:

a mapping mode from a virtual resource block to a physical resource block, a modulation and coding mode, redundant version information and retransmission times.
An information transmission method, comprising:

determining scheduling information of a data channel, wherein the data channel bears system messages;

transmitting indication information of the scheduling information through a physical broadcast channel;

wherein the scheduling information includes at least one of frequency domain resource information and time domain resource information.
The method of claim 15, wherein the sending the indication of the scheduling information through a physical broadcast channel comprises:

determining frequency domain indication information of the frequency domain resource information, wherein the frequency domain indication information comprises at least one of the following information: the method comprises the steps of obtaining first bandwidth, frequency domain position information of the first bandwidth and frequency domain resource allocation information in the first bandwidth;

and transmitting indication information including the frequency domain indication information through the physical broadcast channel.
The method of claim 16, wherein the frequency domain resource allocation information is of type 1.
The method according to claim 16 or 17, wherein the frequency domain resource allocation information comprises: the number of resource blocks or the number of groups of resource blocks.
The method according to claim 16 or 17, wherein the frequency domain resource allocation information comprises: the number of resource blocks and the position information of the initial resource block;

or

The frequency domain resource allocation information includes: the number of resource block groups and location information of the starting resource block group.
The method of any of claims 16-19, wherein the first bandwidth over different time units is the same, and the frequency domain location of the first bandwidth over different time units is the same.
The method according to any of claims 16-19, wherein the first bandwidth is different over at least two time units and/or the frequency domain position of the first bandwidth is different over at least two time units.
The method according to any of claims 16-21, wherein the time domain resource information of the data channel is indicated by a preset first information;

the first information includes at least one of the following information:

a wireless frame number, a time slot number, a cell identifier, a synchronous signal block index, retransmission times, a starting symbol and a symbol number of a time slot in which the data channel is positioned, and time slot indication information;

the time domain resource information includes at least one of the following information:

the time slot of the data channel, the initial symbol and the number of the symbols of the data channel in the time slot.
The method of claim 22, wherein at least one of the time domain resource information and the frequency domain resource information has a corresponding relationship.
The method according to any of claims 15-23, wherein said sending the indication information of the scheduling information through a physical broadcast channel comprises:

determining time domain indication information of the time domain resource information, wherein the time domain indication information comprises at least one of the following information: the time slot of the data channel, and the initial symbol and the length of the time slot of the data channel;

and transmitting indication information comprising the time domain indication information through the physical broadcast channel.
The method of claim 24, wherein the information of the time slot in which the data channel is located is indicated by at least one of the following information:

radio frame number, time slot number, cell identification, synchronous signal block index, retransmission times and time slot indication information.
The method according to claim 24 or 25, wherein the frequency domain resource information is indicated by preset second information;

the second information includes at least one of the following information:

the frequency domain position information of the synchronous signal block, the number of resources contained in the frequency domain resources of the data channel, the position of the frequency domain resources contained in the frequency domain resources of the data channel, and the frequency domain offset information;

the frequency domain resource information includes at least one of the following information:

the first bandwidth, the frequency domain position information of the first bandwidth, and the frequency domain resource allocation information in the first bandwidth.
The method of claim 26, wherein at least one of the frequency domain resource information and the time domain resource information has a corresponding relationship.
The method according to any of claims 15-27, wherein the scheduling information further comprises at least one of the following information:

a mapping mode from a virtual resource block to a physical resource block, a modulation and coding mode, redundant version information and retransmission times.
An information transmission apparatus, comprising: the device comprises a receiving module and a processing module;

the receiving module is used for receiving the indication information through a physical broadcast channel;

the processing module is configured to determine scheduling information of a data channel according to the indication information, where the data channel carries a system message, and the scheduling information includes at least one of frequency domain resource information and time domain resource information.
The apparatus of claim 29, wherein the processing module is specifically configured to determine frequency domain indication information of the frequency domain resource information according to the indication information, and determine frequency domain resource information of the data channel according to the frequency domain indication information;

wherein the frequency domain indication information comprises at least one of the following information: the first bandwidth, the frequency domain position information of the first bandwidth, and the frequency domain resource allocation information in the first bandwidth.
The apparatus of claim 30, wherein the frequency domain resource allocation information is of type 1.
The apparatus of claim 30 or 31, wherein the frequency domain resource allocation information comprises: the number of resource blocks or the number of groups of resource blocks.
The apparatus of claim 30 or 31, wherein the frequency domain resource allocation information comprises: the number of resource blocks and the position information of the initial resource block;

or

The frequency domain resource allocation information includes: the number of resource block groups and location information of the starting resource block group.
The apparatus of any one of claims 30-33, wherein the first bandwidth over different time units is the same, and wherein the frequency domain location of the first bandwidth over different time units is the same.
The apparatus according to any of claims 30-33, wherein the first bandwidth is different over at least two time units and/or the frequency domain position of the first bandwidth is different over at least two time units.
The apparatus of any one of claims 30 to 35, wherein the processing module is further configured to determine time domain resource information of the data channel according to preset first information:

the first information includes at least one of the following information:

a wireless frame number, a time slot number, a cell identifier, a synchronous signal block index, retransmission times, a starting symbol and a symbol number of a time slot in which the data channel is positioned, and time slot indication information;

the time domain resource information includes at least one of the following information:

the time slot of the data channel, the initial symbol and the number of the symbols of the data channel in the time slot.
The apparatus of claim 36, wherein at least one of the time domain resource information and the frequency domain resource information has a corresponding relationship.
The apparatus according to any one of claims 29 to 35, wherein the processing module is specifically configured to determine time domain indication information of the time domain resource information according to the indication information, and determine time domain resource information of the data channel according to the time domain indication information;

wherein the time domain indication information includes at least one of the following information: the time slot of the data channel, the initial symbol and the length of the time slot of the data channel.
The apparatus of claim 38, wherein the information of the time slot in which the data channel is located is determined according to at least one of the following information:

radio frame number, time slot number, cell identification, synchronous signal block index, retransmission times and time slot indication information.
The apparatus according to claim 38 or 39, wherein the processing module is further configured to determine the frequency domain resource information according to preset second information;

the second information includes at least one of the following information:

the frequency domain position information of the synchronous signal block, the number of resources contained in the frequency domain resources of the data channel, the position of the frequency domain resources contained in the frequency domain resources of the data channel, and the frequency domain offset information;

the frequency domain resource information includes at least one of the following information:

the first bandwidth, the frequency domain position information of the first bandwidth, and the frequency domain resource allocation information in the first bandwidth.
The apparatus of claim 40, wherein at least one of the frequency domain resource information and the time domain resource information has a correspondence relationship.
The apparatus according to any of claims 29-41, wherein the scheduling information further comprises at least one of:

a mapping mode from a virtual resource block to a physical resource block, a modulation and coding mode, redundant version information and retransmission times.
An information transmission apparatus, comprising: the device comprises a processing module and a sending module;

the processing module is configured to determine scheduling information of a data channel, where the data channel carries a system message;

the sending module is configured to send the indication information of the scheduling information through a physical broadcast channel;

wherein the scheduling information includes at least one of frequency domain resource information and time domain resource information.
The apparatus of claim 43, wherein the processing module is further configured to determine frequency domain indication information of the frequency domain resource information, and wherein the frequency domain indication information comprises at least one of the following information: the method comprises the steps of obtaining a first bandwidth, frequency domain position information of the first bandwidth and frequency domain resource allocation information in the first bandwidth;

the sending module is further configured to send, through the physical broadcast channel, indication information including the frequency domain indication information.
The apparatus of claim 44, wherein the frequency domain resource allocation information is of type 1.
The apparatus of claim 44 or 45, wherein the frequency domain resource allocation information comprises: the number of resource blocks or the number of groups of resource blocks.
The apparatus of claim 44 or 45, wherein the frequency domain resource allocation information comprises: the number of resource blocks and the position information of the initial resource block;

or

The frequency domain resource allocation information includes: the number of resource block groups and location information of the starting resource block group.
The apparatus of any one of claims 44-47, wherein the first bandwidth over different time units is the same, and wherein the frequency domain location of the first bandwidth over different time units is the same.
The apparatus according to any of claims 44-47, wherein the first bandwidth over at least two time units is different, and/or wherein the frequency domain position of the first bandwidth over at least two time units is different.
The apparatus of any one of claims 44-49, wherein the time domain resource information of the data channel is indicated by preset first information;

the first information includes at least one of the following information:

a wireless frame number, a time slot number, a cell identifier, a synchronous signal block index, retransmission times, a starting symbol and a symbol number of a time slot in which the data channel is positioned, and time slot indication information;

the time domain resource information includes at least one of the following information:

the time slot of the data channel, the initial symbol and the number of the symbols of the data channel in the time slot.
The apparatus of claim 50, wherein at least one of the time domain resource information and the frequency domain resource information has a corresponding relationship.
The apparatus of any one of claims 43-51, wherein the processing module is further configured to determine time domain indication information of the time domain resource information, and the time domain indication information comprises at least one of the following information: the time slot of the data channel, and the initial symbol and the length of the time slot of the data channel;

the sending module is configured to send, through the physical broadcast channel, indication information including the time domain indication information.
The apparatus of claim 52, wherein the information of the time slot in which the data channel is located is indicated by at least one of the following information:

radio frame number, time slot number, cell identification, synchronous signal block index, retransmission times and time slot indication information.
The apparatus according to claim 52 or 53, wherein the frequency domain resource information is indicated by preset second information;

the second information includes at least one of the following information:

the frequency domain position information of the synchronous signal block, the resource quantity contained in the frequency domain resource of the data channel, the frequency domain resource position contained in the frequency domain resource of the data channel and the frequency domain offset information;

the frequency domain resource information includes at least one of the following information:

the first bandwidth, the frequency domain position information of the first bandwidth, and the frequency domain resource allocation information in the first bandwidth.
The apparatus according to claim 54, wherein at least one of the frequency domain resource information has a correspondence with the time domain resource information.
The apparatus of any of claims 43-55, wherein the scheduling information further comprises at least one of:

a mapping mode from a virtual resource block to a physical resource block, a modulation and coding mode, redundant version information and retransmission times.
A terminal device, comprising:

a processor, a memory, a receiver, and an interface to communicate with a network device;

the memory stores computer execution instructions;

the processor executes computer-executable instructions stored by the memory, causing the processor to perform the method of any of claims 1-14 above.
A network device, comprising:

a processor, a memory, a transmitter, and an interface for communicating with a terminal device;

the memory stores computer-executable instructions;

the processor executing computer-executable instructions stored by the memory causes the processor to perform the method of any of claims 15-28.
A computer-readable storage medium having computer-executable instructions stored thereon, which when executed by a processor, perform the method of any one of claims 1-14.
A computer-readable storage medium having computer-executable instructions stored thereon, which when executed by a processor, perform the method of any one of claims 15-28.