CN115622663A

CN115622663A - Information transmission method and device

Info

Publication number: CN115622663A
Application number: CN202110948363.8A
Authority: CN
Inventors: 张彦清; 李雪茹
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-07-12
Filing date: 2021-08-18
Publication date: 2023-01-17
Also published as: WO2023284647A1

Abstract

The application provides an information transmission method and device, comprising the following steps: receiving control information and data, wherein the control information and the data are multiplexed in a first physical shared channel, and the control information is used for indicating a first modulation mode and/or a first coding mode of the data; and decoding the data according to the first modulation mode and/or the first coding mode. According to the technical scheme of the application, the data and the control information corresponding to the data are multiplexed in the same physical shared channel, so that the detection overhead of the detection control information is reduced, and the reliable transmission of the data is provided.

Description

Information transmission method and device

This application claims priority from the chinese patent application filed on 12.7.7.2021, with application number 202110785449.3 entitled "an SPS scheduling method," the entire contents of which are incorporated herein by reference.

Technical Field

The present application relates to the field of communications, and more particularly, to methods and apparatus for information transmission.

Background

Real-time broadband communication (RTBC) scenes in future communication systems aim to support large bandwidth and low interaction delay, and the aim is to improve the bandwidth by 10 times under the given delay and certain reliability requirements and create immersive experience when people interact with a virtual world. Among them, the extended real-life professional (XR Pro) service with ultra-high bandwidth and ultra-low delay requirements presents a more serious challenge for the fifth generation (the 5 g) mobile communication technology. XR mainly includes Virtual Reality (VR), augmented Reality (AR), and Mixed Reality (MR) virtual and reality interaction technologies. During the downlink transmission process, the XR content of the server generates data content at a fixed frequency (for example, 60Hz or 120 Hz), and the data content is transmitted to the XR terminal equipment by the base station side. In addition, due to the requirement of graph generation, devices such as AR and MR need to be built in with a camera to acquire and continuously upload the current scene image at a specific frequency (e.g., 60 Hz).

In a current New Radio (NR), two scheduling modes, namely dynamic scheduling and semi-static scheduling, are provided for uplink transmission and downlink transmission. The dynamic scheduling may configure different parameters for each transmission to adapt to the change of the channel state, but the dynamic scheduling requires the receiving end to blindly detect the control information, which increases the power consumption overhead of the receiving end. Semi-persistent scheduling has the characteristic of being configured once for multiple use, that is, after a parameter is configured once, the configured parameter is adopted in subsequent transmission. Although, under semi-persistent scheduling, the receiving end does not need to blindly detect the control information. However, the change of the configuration parameters of the semi-static transmission requires the reconfiguration or reactivation through the control information. In this case, the receiving end still needs to detect the control information in a blind manner, which brings power consumption overhead.

Therefore, there is a need for an information transmission method that not only enables semi-static transmission to make corresponding changes based on channel changes to provide transmission reliability and resource utilization, but also avoids power consumption caused by receiving end blind detection of DCI.

Disclosure of Invention

The application provides an information transmission method and device, which are beneficial to reducing detection overhead of control information detection and providing reliable data transmission.

In a first aspect, a method for information transmission is provided, including: receiving control information and data, wherein the control information and the data are multiplexed in a first physical shared channel, and the control information is used for indicating a first modulation mode and/or a first coding mode of the data; and decoding the data according to the first modulation mode and/or the first coding mode.

According to the technical scheme of the application, data and control information corresponding to the data are multiplexed in the same physical shared channel, so that the detection overhead of the detection control information is reduced, and the reliable transmission of the data is provided.

Wherein the data comprises semi-static transmitted data.

With reference to the first aspect, in certain implementations of the first aspect, the method further includes: receiving first configuration information, wherein the first configuration information is used for configuring semi-static transmission, and a physical shared channel for carrying the semi-static transmission comprises a first physical shared channel.

With reference to the first aspect, in some implementation manners of the first aspect, the first configuration information is further used to configure N physical shared channels for semi-static transmission, where the N physical shared channels include the first physical shared channel, and N is a positive integer.

With reference to the first aspect, in some implementations of the first aspect, the first configuration information is further used to indicate that the control information is applied to M physical shared channels corresponding to the semi-statically transmitted data, where M is a positive integer multiple of N.

The data of the M physical shared channels are processed according to a first modulation and/or a first coding mode of the control information.

With reference to the first aspect, in certain implementations of the first aspect, the symbols on which the control information is mapped on the first physical shared channel do not include symbols on which the demodulation reference signals DM-RS are carried on the first physical shared channel.

With reference to the first aspect, in some implementations of the first aspect, the first physical shared channel includes a first symbol, the first symbol is a first symbol in the first physical shared channel that does not carry a DM-RS, the first symbol includes a first Resource Element (RE), the first RE is a resource element that does not carry a phase tracking reference signal (PT-RS), the control information is mapped on the first RE on the first symbol according to a first frequency-domain mapping interval, and the first frequency-domain mapping interval is determined according to a number of the first RE on the first symbol and a number of REs to which the control information is not mapped.

With reference to the first aspect, in certain implementations of the first aspect, the first physical shared channel further includes a second symbol, where the second symbol is an adjacent symbol of the first symbol that does not carry control information and the DM-RS, and the second symbol includes the first REs, the control information is mapped on the first REs on the second symbol according to a second frequency-domain mapping interval, and the second frequency-domain mapping interval is determined according to the number of the first REs on the second symbol and the number of REs to which the control information is not mapped.

With reference to the first aspect, in certain implementations of the first aspect, the first configuration information is further used to indicate symbol ordering information of symbols of the control information mapped to the first physical shared channel, where the symbol ordering information is ordered or sequentially ordered according to a manner adjacent to the one or more DM-RSs.

With reference to the first aspect, in certain implementations of the first aspect, the method further includes: receiving second configuration information, wherein the second configuration information is used for indicating the preset time domain density of a phase tracking reference signal (PT-RS) of a first physical shared channel; and when the control information is mapped on the first RE according to the first frequency domain mapping interval or the second frequency domain mapping interval, skipping the RE occupied by the PT-RS, wherein the RE occupied by the PT-RS is determined according to the preset time domain density.

With reference to the first aspect, in certain implementations of the first aspect, the semi-statically transmitted data is mapped to second REs on the first physical shared channel, where the second REs are resource elements of the first physical shared channel that do not carry control information, DM-RS, and PT-RS.

With reference to the first aspect, in certain implementations of the first aspect, the control information is further used to indicate hybrid automatic repeat request (HARQ) information.

With reference to the first aspect, in certain implementations of the first aspect, the first configuration information is further used to indicate that the control information is applied to one or more Transport Blocks (TBs) of the semi-static transport.

With reference to the first aspect, in some implementations of the first aspect, the first configuration information is further used to indicate a second modulation scheme and/or a second coding scheme of the control information, and the method further includes: and decoding the control information according to the second modulation mode and/or the second coding mode.

The second modulation mode is binary phase shift keying; alternatively, π/2-binary phase shift keying; or, quadrature phase keying modulation; or quadrature amplitude modulation. The second encoding method is as follows: reed-Muller RM code encoding; or, cyclic redundancy check, CRC, code coding and RM coding; alternatively, repetition coding; alternatively, CRC code encoding and polarization code encoding.

In a second aspect, a method for information transmission is provided, including: coding data according to a first modulation mode and/or a first coding mode; and transmitting control information and data, wherein the control information and the data are multiplexed in the first physical shared channel, and the control information is used for indicating a first modulation mode and/or a first coding mode of the data.

According to the technical scheme of the application, the data and the control information corresponding to the data are multiplexed in the same physical shared channel, so that the detection cost of the detection control information is reduced, and the reliable transmission of the data is provided.

Wherein the data comprises semi-statically transmitted data.

With reference to the second aspect, in some implementations of the second aspect, the method further includes: and sending first configuration information, wherein the first configuration information is used for configuring semi-static transmission, and the physical shared channel for carrying the semi-static transmission comprises a first physical shared channel.

With reference to the second aspect, in some implementations of the second aspect, the first configuration information is further used to configure N physical shared channels for semi-static transmission, where the N physical shared channels include the first physical shared channel, and N is a positive integer.

With reference to the second aspect, in some implementations of the second aspect, the first configuration information is further used to indicate that the control information is applied to M physical shared channels corresponding to the semi-statically transmitted data, where M is a positive integer multiple of N.

With reference to the second aspect, in some implementations of the second aspect, the data of the M physical shared channels is processed according to a first modulation and/or a first coding manner of the control information.

With reference to the second aspect, in some implementations of the second aspect, the symbols on which the control information is mapped on the first physical shared channel do not include symbols carrying demodulation reference signals, DM-RS, on the first physical shared channel.

With reference to the second aspect, in some implementations of the second aspect, the first physical shared channel includes a first symbol, the first symbol is a first symbol in the first physical shared channel that does not carry a DM-RS, the first symbol includes a first resource element RE, the first RE is a resource element that does not carry a PT-RS, the control information is mapped on the first RE on the first symbol according to a first frequency-domain mapping interval, and the first frequency-domain mapping interval is determined according to the number of the first RE on the first symbol and the number of REs to which the control information is not mapped.

With reference to the second aspect, in some implementations of the second aspect, the first physical shared channel further includes a second symbol, where the second symbol is an adjacent symbol of the first symbol that does not carry the control information and the DM-RS, and the second symbol includes the first RE, the control information is mapped on the first RE on the second symbol according to a second frequency-domain mapping interval, and the second frequency-domain mapping interval is determined according to the number of the first RE on the second symbol and the number of REs to which the control information is not mapped.

With reference to the second aspect, in some implementations of the second aspect, the first configuration information is further used to indicate symbol ordering information of symbols to which the control information is mapped to the first physical shared channel, where the symbol ordering information is ordered or sequentially ordered according to a manner adjacent to the one or more DM-RSs.

With reference to the second aspect, in some implementations of the second aspect, the method further includes: sending second configuration information, wherein the second configuration information is used for indicating the preset time domain density of a phase tracking reference signal PT-RS of the first physical shared channel; and when the control information is mapped on the first RE according to the first frequency domain mapping interval or the second frequency domain mapping interval, skipping the RE occupied by the PT-RS, wherein the RE occupied by the PT-RS is determined according to the preset time domain density.

With reference to the second aspect, in some implementations of the second aspect, the semi-statically transmitted data is mapped to second REs on the first physical shared channel, where the second REs are resource elements of the first physical shared channel that do not carry control information, DM-RS, and PT-RS.

With reference to the second aspect, in some implementations of the second aspect, the control information is further used to indicate hybrid automatic repeat request, HARQ, information.

With reference to the second aspect, in certain implementations of the second aspect, the first configuration information is further used to indicate that the control information applies to one or more transport blocks, TBs, of the semi-static transmission.

With reference to the second aspect, in some implementations of the second aspect, the first configuration information is further used to indicate a second modulation scheme and/or a second coding scheme of the control information, and the method further includes: and coding the control information according to the second modulation mode and/or the second coding mode.

The second modulation mode is quadrature phase keying modulation, and the second coding mode is: reed-Muller RM code encoding; or, cyclic redundancy check CRC code encoding and RM encoding; alternatively, repetition coding; alternatively, CRC code encoding and polar code encoding.

In a third aspect, a communication device is provided, where the communication device is configured to perform the communication method provided in the first aspect. Specifically, the communication device comprises means for performing the communication method provided by the first aspect.

Illustratively, the communication device is a receiving end of wireless communication.

One possible implementation manner is that the communication device includes: the receiving and sending unit is used for receiving control information and data, the control information and the data are multiplexed in a first physical shared channel, and the control information is used for indicating a first modulation mode and/or a first coding mode of the data; and the processing unit is used for decoding the data according to the first modulation mode and/or the first coding mode.

Wherein the data comprises semi-statically transmitted data.

With reference to the third aspect, in some implementations of the third aspect, the transceiver unit is further configured to receive first configuration information, where the first configuration information is used to configure semi-static transmission, and the physical shared channel carrying the semi-static transmission includes a first physical shared channel.

With reference to the third aspect, in some implementations of the third aspect, the first configuration information is further used to configure N physical shared channels for semi-static transmission, where the N physical shared channels include the first physical shared channel, and N is a positive integer.

With reference to the third aspect, in some implementations of the third aspect, the first configuration information is further used to indicate that the control information is applied to M physical shared channels corresponding to the semi-statically transmitted data, where M is a positive integer multiple of N.

With reference to the third aspect, in certain implementations of the third aspect, the symbols on which the control information is mapped to the first physical shared channel do not include symbols on which demodulation reference signals, DM-RS, are carried on the first physical shared channel.

With reference to the third aspect, in some implementations of the third aspect, the first physical shared channel includes a first symbol, the first symbol is a first symbol in the first physical shared channel that does not carry a DM-RS, the first symbol includes a first resource element, the first RE is a resource element that does not carry a PT-RS, the control information is mapped on the first RE on the first symbol according to a first frequency-domain mapping interval, and the first frequency-domain mapping interval is determined according to the number of the first RE on the first symbol and the number of REs to which the control information is not mapped.

With reference to the third aspect, in some implementations of the third aspect, the first physical shared channel further includes a second symbol, where the second symbol is an adjacent symbol of the first symbol that does not carry control information and the DM-RS, and the second symbol includes the first RE, the control information is mapped on the first RE on the second symbol according to a second frequency-domain mapping interval, and the second frequency-domain mapping interval is determined according to the number of the first RE on the second symbol and the number of REs to which the control information is not mapped.

With reference to the third aspect, in some implementations of the third aspect, the first configuration information is further used to indicate symbol ordering information of symbols to which the control information is mapped to the first physical shared channel, where the symbol ordering information is ordered or sequentially ordered according to a manner adjacent to the one or more DM-RSs.

With reference to the third aspect, in some implementation manners of the third aspect, the transceiver unit is further configured to receive second configuration information, where the second configuration information is used to indicate a preset time domain density of a phase tracking reference signal PT-RS of the first physical shared channel; and the processing unit is further configured to skip the REs occupied by the PT-RS when the control information is mapped on the first REs according to the first frequency domain mapping interval or the second frequency domain mapping interval, where the REs occupied by the PT-RS are determined according to a preset time domain density.

With reference to the third aspect, in certain implementations of the third aspect, the semi-statically transmitted data is mapped to second REs on the first physical shared channel, where the second REs are resource elements in the first physical shared channel that do not carry control information, DM-RS, and PT-RS.

With reference to the third aspect, in some implementations of the third aspect, the control information is further used to indicate hybrid automatic repeat request (HARQ) information.

With reference to the third aspect, in certain implementations of the third aspect, the first configuration information is further used to indicate that the control information applies to one or more Transport Blocks (TBs) of the semi-static transport.

With reference to the third aspect, in some implementations of the third aspect, the first configuration information is further used to indicate a second modulation scheme and/or a second coding scheme of the control information, and the processing unit is specifically configured to decode the control information according to the second modulation scheme and/or the second coding scheme.

The second modulation mode is binary phase shift keying; alternatively, pi/2-binary phase shift keying; or, quadrature phase keying modulation; or quadrature amplitude modulation. The second encoding mode is as follows: reed-Muller RM code encoding; or, cyclic redundancy check CRC code encoding and RM encoding; alternatively, repetition coding; alternatively, CRC code encoding and polarization code encoding.

In a fourth aspect, a communication device is provided, wherein the communication device is configured to perform the communication method provided by the second aspect. Specifically, the communication device comprises a module for executing the communication method provided by the second aspect.

Illustratively, the communication device is a transmitting end of wireless communication.

As a possible implementation manner, the communication apparatus includes: the processing unit is used for coding data according to a first modulation mode and/or a first coding mode; and the transceiving unit is used for sending control information and data, the control information and the data are multiplexed in the first physical shared channel, and the control information is used for indicating a first modulation mode and/or a first coding mode of the data.

Wherein the data comprises semi-static transmitted data.

With reference to the fourth aspect, in some implementation manners of the fourth aspect, the transceiver unit is further configured to send first configuration information, where the first configuration information is used to configure semi-static transmission, and the physical shared channel carrying the semi-static transmission includes a first physical shared channel.

With reference to the fourth aspect, in some implementations of the fourth aspect, the first configuration information is further used to configure N physical shared channels for semi-static transmission, where the N physical shared channels include the first physical shared channel, and N is a positive integer.

With reference to the fourth aspect, in some implementations of the fourth aspect, the first configuration information is further used to indicate that the control information is applied to M physical shared channels corresponding to the semi-statically transmitted data, where M is a positive integer multiple of N.

With reference to the fourth aspect, in some implementations of the fourth aspect, the data of the M physical shared channels is processed according to a first modulation and/or a first coding manner of the control information.

With reference to the fourth aspect, in some implementations of the fourth aspect, the symbols on which the control information is mapped to the first physical shared channel do not include symbols on which the demodulation reference signals DM-RS are carried on the first physical shared channel.

With reference to the fourth aspect, in some implementations of the fourth aspect, the first physical shared channel includes a first symbol, the first symbol is a first symbol in the first physical shared channel that does not carry a DM-RS, the first symbol includes a first resource element RE, the first RE is a resource element that does not carry a PT-RS, the control information is mapped on the first RE on the first symbol according to a first frequency-domain mapping interval, and the first frequency-domain mapping interval is determined according to the number of the first RE on the first symbol and the number of REs to which the control information is not mapped.

With reference to the fourth aspect, in some implementations of the fourth aspect, the first physical shared channel further includes a second symbol, where the second symbol is an adjacent symbol of the first symbol that does not carry the control information and the DM-RS, and the second symbol includes the first RE, the control information is mapped on the first RE on the second symbol according to a second frequency-domain mapping interval, and the second frequency-domain mapping interval is determined according to the number of the first RE on the second symbol and the number of REs to which the control information is not mapped.

With reference to the fourth aspect, in some implementations of the fourth aspect, the first configuration information is further used to indicate symbol ordering information of symbols of the control information mapped to the first physical shared channel, where the symbol ordering information is ordered or sequentially ordered according to a manner adjacent to the one or more DM-RSs.

With reference to the fourth aspect, in some implementation manners of the fourth aspect, the transceiver unit is further configured to send second configuration information, where the second configuration information is used to indicate a preset time domain density of a phase tracking reference signal PT-RS of the first physical shared channel; and the processing unit is used for skipping the RE occupied by the PT-RS when the control information is mapped on the first RE according to the first frequency domain mapping interval or the second frequency domain mapping interval, and the RE occupied by the PT-RS is determined according to the preset time domain density.

With reference to the fourth aspect, in some implementations of the fourth aspect, the semi-statically transmitted data is mapped to second REs on the first physical shared channel, where the second REs are resource elements of the first physical shared channel that do not carry control information, DM-RS, and PT-RS.

With reference to the fourth aspect, in certain implementations of the fourth aspect, the control information is further used to indicate hybrid automatic repeat request, HARQ, information.

With reference to the fourth aspect, in some implementations of the fourth aspect, the first configuration information is further used to indicate that the control information applies to one or more transport blocks, TBs, of the semi-static transmission.

With reference to the fourth aspect, in some implementations of the fourth aspect, the first configuration information is further used to indicate a second modulation scheme and/or a second coding scheme of the control information, and the processing unit is specifically configured to code the control information according to the second modulation scheme and/or the second coding scheme.

In a fifth aspect, there is provided a communication device comprising a processor and an interface circuit, the interface circuit being configured to receive signals from other communication devices than the communication device and transmit the signals to the processor or transmit the signals from the processor to other communication devices than the communication device, and the processor being configured to implement the method in any possible implementation manner of the first aspect through logic circuits or executing code instructions.

In a sixth aspect, there is provided a communication device comprising a processor and an interface circuit, the interface circuit being configured to receive signals from other communication devices than the communication device and transmit the signals to the processor or transmit the signals from the processor to other communication devices than the communication device, the processor being configured to implement the method in any possible implementation manner of the foregoing second aspect by logic circuits or executing code instructions.

In a seventh aspect, a computer-readable storage medium is provided, in which a computer program or instructions are stored, which, when executed, implement the method in any possible implementation manner of the first or second aspect.

In an eighth aspect, there is provided a computer program product comprising instructions which, when executed, implement the method of any possible implementation of the first or second aspect.

A ninth aspect provides a computer program comprising code or instructions which, when executed, performs the method of any possible implementation of the first or second aspects.

In a tenth aspect, a chip system is provided, where the chip system includes a processor and further includes a memory, and is configured to implement the method in any possible implementation manner of the first aspect or the second aspect. The chip system is composed of chips, and also comprises chips and other discrete devices.

In an eleventh aspect, a communication system is provided that includes a first communication device and a second communication device.

The first communication device is configured to implement the method in each implementation manner in the first aspect, and the second communication device is configured to implement the method in each implementation manner in the second aspect.

In a possible design, the communication system further includes other devices that interact with the first communication apparatus or the second communication apparatus in the solution provided in this embodiment.

Drawings

Fig. 1 is a schematic diagram of a communication system 100 to which the present application is applicable.

Fig. 2 is a schematic diagram illustrating an example of a semi-static transmission method applied in the present application.

Fig. 3 is a schematic diagram illustrating an example of an information transmission method provided in the present application.

Fig. 4 is a schematic diagram illustrating a specific example of an information transmission method provided in the present application.

Fig. 5 is a diagram illustrating an example of multiplexing control information on a single symbol of a physical shared channel according to the present invention.

Fig. 6 is a diagram showing an example of multiplexing control information on a plurality of symbols of a physical shared channel according to the present invention.

Fig. 7 is a diagram illustrating an example of multiplexing control information on a physical shared channel carrying extra DM-RS symbols according to the present application.

Fig. 8 is a diagram illustrating an example of multiplexing control information on a physical shared channel carrying PT-RS symbols according to the present invention.

Fig. 9 is a diagram illustrating an example of application of control information to a plurality of SPS.

Fig. 10 is a diagram illustrating an example of control information applied to a plurality of physical shared channels of an SPS according to the present application.

Fig. 11 is another exemplary illustration of control information applied to multiple physical shared channels of multiple SPSs according to the present application.

Fig. 12 is a schematic diagram of an example of an information transmission apparatus provided in the present application.

Fig. 13 is a schematic diagram of an example of an information transmission device according to the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

Fig. 1 is a schematic diagram of a communication system 100 suitable for use in embodiments of the present application.

As shown in fig. 1, the communication system 100 may include one or more network devices, such as the network device 101 shown in fig. 1. The communication system 100 may further include one or more terminal devices (also referred to as User Equipments (UEs)), such as the terminal device 102, the terminal device 103, and the terminal device 104 shown in fig. 1. Among other things, communication system 100 may support sidelink (sidelink) communication techniques, such as sidelink communication between terminal device 102 and terminal device 103, sidelink communication between terminal device 102 and terminal device 104, and so forth.

It should be understood that fig. 1 is only a schematic diagram, and other network devices, such as the core network device 105, and wireless relay devices and wireless backhaul devices not shown in fig. 1, may also be included in the communication system. The embodiments of the present application do not limit the number of network devices and terminal devices included in the mobile communication system.

Terminal equipment in embodiments of the present application may refer to user equipment, an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or user equipment. The terminal in the embodiment of the present application may be a mobile phone (mobile phone), a tablet (pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal, an Augmented Reality (AR) terminal, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation security (transportation security), a wireless terminal in smart city (smart city), a wireless terminal in PDA (smart home), a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local, l) station, a personal digital assistant (wldigital assistant), a wireless terminal with a wireless modem, a wireless modem connected to a wireless communication network, or other devices with a function of a future communication network, or a wireless network connected to a wireless communication network 5.

Wherein, wearable equipment also can be called as wearing formula smart machine, is the general term of using wearing formula technique to carry out intelligent design, developing the equipment that can dress to daily wearing, like glasses, gloves, wrist-watch, dress and shoes etc.. A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device has full functions and large size, and can realize complete or partial functions without depending on a smart phone, for example: smart watches or smart glasses and the like, and only focus on a certain type of application functions, and need to be used in cooperation with other devices such as smart phones, such as various smart bracelets for physical sign monitoring, smart jewelry and the like.

In addition, the terminal device may also be a terminal device in an internet of things (IoT) system. The technical characteristic of the IoT is that the articles are connected with the network through the communication technology, so as to realize the man-machine interconnection and the intelligent network of the article-object interconnection. The specific form of the terminal device is not limited in the present application.

It should be understood that, in the embodiment of the present application, the terminal device may be an apparatus for implementing a function of the terminal device, and may also be an apparatus capable of supporting the terminal device to implement the function, for example, a system on a chip, and the apparatus may be installed in the terminal. In the embodiment of the present application, the chip system may be composed of a chip, and may also include a chip and other discrete devices.

The network device in the embodiment of the present application may be any device having a wireless transceiving function. Such devices include, but are not limited to: an evolved Node B (eNB), a home base station (e.g., home evolved Node B, HNB), a baseband unit (BBU), an Access Point (AP) in a wireless fidelity (WIFI) system, a wireless relay Node, a wireless backhaul Node, a Transmission Point (TP) or a Transmission and Reception Point (TRP), etc., and may also be a fifth generation (5G), such as a next generation base station (next generation B, gNB) in a new generation wireless communication system (new radio, NR), or a transmission point (TP or TP), one or a group of base stations (including multiple antenna panels) in a 5G system, or may also be a network Node (nb) constituting a gNB or a transmission point, such as a baseband unit (dis), or a distributed BBU, etc.

In some deployments, the gNB may include a Centralized Unit (CU) and a DU. The CU implements part of the function of the gNB and the DU implements part of the function of the gNB. For example, the CU is responsible for processing non-real-time protocols and services, and implements functions of a Radio Resource Control (RRC) layer and a Packet Data Convergence Protocol (PDCP) layer. The DU is responsible for processing a physical layer protocol and a real-time service, and implements functions of a Radio Link Control (RLC) layer, a Medium Access Control (MAC) layer, and a Physical (PHY) layer. The gNB may further include an Active Antenna Unit (AAU). The AAU implements part of the physical layer processing functions, radio frequency processing and active antenna related functions. Since the information of the RRC layer eventually becomes or is converted from the information of the PHY layer, the higher layer signaling, such as the RRC layer signaling, may also be considered to be transmitted by the DU or by the DU + AAU under this architecture. It is to be understood that the network device may be a device comprising one or more of a CU node, a DU node, an AAU node. In addition, the CU may be divided into network devices in an access network (RAN), or may be divided into network devices in a Core Network (CN), which is not limited in this application.

It should be understood that in the embodiment of the present application, the network device may be an apparatus for implementing a function of the network device, and may also be an apparatus capable of supporting the network device to implement the function, for example, a system on chip, and the apparatus may be installed in the network device.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD), a 5G system, a vehicle-to-other device (V2X), wherein V2X may include a vehicle-to-Internet (V2N), a vehicle-to-vehicle (V2V), a vehicle-to-infrastructure (V2I), a vehicle-to-pedestrian (vehicle-to-pedestrian, V2P), etc., a long term evolution-evolution (LTE-V) for vehicle-to-vehicle communication, MTC (machine type communication), internet of things (Internet of things, ioT), LTE-M (long term evolution-machine) for machine-to-machine communication, M2M (machine to machine), D2D (device to device), etc., or a future-evolution communication system, such as 6th generation,6G (6G) system.

Real Time Broadband Communication (RTBC) scenes in the 5G new vision aim to support large bandwidth and low interaction latency, and the goal is to increase bandwidth with given latency and certain reliability requirements, creating an immersive experience when interacting with the virtual world. Among them, the extended real (XR) Pro service with ultra-high bandwidth and ultra-low delay requirements presents more serious challenges to the current 5G. XR mainly includes Virtual Reality (VR), augmented Reality (AR), and Mixed Reality (MR) virtual and reality interaction technologies. During the downlink transmission process, the XR content of the server generates data content at a fixed frequency (for example, 60hz, 120hz), and is transmitted to an extended reality terminal device (XR UE) by the base station side. In addition, due to the requirement of graph generation, the devices such as AR and MR need to be built in with a camera to acquire and continuously upload the current scene image at a specific frequency (for example, 60 Hz).

In NR, scheduling of data can be generally classified into dynamic scheduling and semi-static scheduling. Wherein the semi-persistent scheduling comprises configuration grant scheduling and semi-persistent scheduling.

For example, the scheduling of the uplink is divided into two types, i.e., a dynamic scheduling transmission and a Configuration Grant (CG) scheduling-free transmission, and the CG scheduling-free transmission is hereinafter simply referred to as CG transmission. And dynamic scheduling transmission, namely, before uplink data transmission, the UE sends a transmission request to the base station and reports the transmitted data volume. And the base station allocates corresponding transmission resources for the UE according to the information reported by the UE. Dynamic scheduling may configure different parameters for each transmission to accommodate changes in channel conditions. However, dynamic scheduling requires blind detection of control information by the receiving end, which increases the power consumption overhead of the receiving end. The configuration authorization scheduling-free transmission means that the UE autonomously performs periodic uplink data transmission on resources for realizing configuration or activation without sending a scheduling request to the base station and waiting for an uplink scheduling grant of the base station every time the UE transmits. The uplink scheduling-free transmission comprises type1 and type2, wherein for type1, the uplink scheduling-free transmission configuration is completed through RRC signaling. For type2, the uplink non-scheduling transmission configuration is first configured by the base station through RRC signaling, and then the base station activates uplink transmission through Downlink Control Information (DCI) signaling. Compared with dynamic scheduling transmission, in scheduling-free transmission, the receiving end does not need to blindly detect control information. However, if the configuration parameters transmitted by the CG are changed, reactivation or reconfiguration is required, which still requires the receiving end to blindly detect the control information, resulting in power consumption overhead.

As shown in fig. 2, the uplink scheduling-free transmission scheme is divided into two types, type1 and type 2. The uplink scheduling-free transmission configuration of Type1 is completed through RRC signaling, and the uplink scheduling-free transmission configuration of Type2 is completed through RRC signaling and DCI activation signaling together. For the uplink scheduling-free data transmission of type1, a network device (e.g., a base station) configures a periodic transmission resource for a terminal device through an RRC signaling, and the terminal device can directly transmit on the configured resource when uplink data needs to be transmitted. The schedule-free transmission saves scheduling requests and data scheduling time relative to schedule-based data transmission. All parameters related to Type1 scheduling-free transmission are configured through RRC.

For type2 uplink schedule-free data transmission, a network device (e.g., a base station) first configures through RRC signaling, and then the network device (e.g., a base station) activates uplink transmission through a Physical Downlink Control Channel (PDCCH) activation signaling scrambled by a configured scheduling radio network temporary identifier (CS-RNTI). The Type2 scheduling-free transmission resource period is configured through RRC signaling, and specific time frequency resource configuration, modulation and Coding Scheme (MCS) level, multiple-input multiple-output (MIMO) parameters, and the like are all indicated in the DCI signaling activation. The terminal equipment can directly transmit in the configured transmission period after receiving the DCI activation signaling according to the period and the offset configured by the RRC.

In addition, in downlink transmission, NR also provides two scheduling modes, namely semi-persistent scheduling (SPS) transmission, which is dynamic scheduling and pre-configured grant. In dynamic scheduling, the UE needs to monitor (monitor) the PDCCH all the time and determine a scheduling signaling for the terminal according to C-RNTI information carried by the PDCCH. The blind detection power consumption of the UE is also relatively large. In the SPS transmission with the pre-configured grant, the base station configures the downlink SPS resource period through RRC signaling, but does not activate SPS at this time. Similar to the type2 process of uplink transmission, the base station sends a PDCCH scrambled by a CS-RNTI for activating or deactivating the SPS, and indicates resources used for the first transmission of the SPS. The UE determines whether downlink SPS is activated by monitoring the PDCCH, and the resource location of subsequent SPS. After downlink SPS is activated, the UE may receive downlink transmissions at the pre-configured resource location.

In wireless transmission, the variation of air interface channels easily causes error codes of transmitted signals. To solve this problem, the current 3GPP standard employs MCS based on channel status, i.e., parameters that adjust MCS according to channel conditions. The MCS parameters can be used for adjusting the modulation and coding strategies of the transmission data, and the transmission reliability of the data is improved at the cost of additional redundant bits. Specifically, when the channel state is poor, the network device (e.g., the base station) may transmit data using a low-order MCS, that is, the correct rate of transmitting data is ensured at the cost of reducing the transmission efficiency of the system by adding a large number of redundant bits and using low-order modulation. When the channel state is good, the network device (e.g., the base station) may transmit a signal using a high-order MCS, that is, using a high-order modulation scheme, and adding a small number of redundant bits to improve the bandwidth efficiency.

The SPS/CG type1/2 has the characteristics of one-time configuration and multiple transmissions, namely after one-time parameter configuration, all data transmitted by the SPS/CG adopt the configured parameter. If it is desired to change the configuration parameters, RRC reconfiguration or DCI reactivation is required. But reconfiguration or activation introduces additional latency. Since the DCI format used for reactivation contains many fields (i.e., occupies many bits), but only 5 bits are used to indicate the MCS, and the remaining fields do not help to change the MCS, frequent reactivation severely increases the overhead of system transmission, which not only affects the capacity of the system, but also increases the power consumption of the DCI reconfigured or reactivated by the terminal equipment through blind detection.

Based on this, the present application proposes a method of information transmission, which is expected to provide reliable transmission of data while reducing detection overhead of detection control information.

The following describes the technical solution of the present application in detail by taking the interaction between the first communication device and the second communication device as an example. Wherein, the first communication device may be a terminal device (e.g. terminal device 102, terminal device 103 or terminal device 104) in fig. 1, and the second communication device may be a network device 101 in fig. 1; optionally, the first communication apparatus and the second communication apparatus may both be terminal devices, and in this case, the communication system supports sidelink communication technology, for example, the first communication apparatus is the terminal device 102 and the second communication apparatus is the terminal device 103 or the terminal device 104, or the first communication apparatus is the terminal device 103 and the second communication apparatus is the terminal device 104 or the terminal device 102, and the like.

Fig. 3 is a schematic flowchart of an example of the information transmission method according to the present application.

And S310, the first communication device receives control information and data from the second communication device, the control information and the data are multiplexed on the first physical shared channel, and the control information is used for indicating a first modulation mode and/or a first coding mode of the data.

Wherein the data comprises semi-statically transmitted data.

Optionally, the first communications apparatus may further receive first configuration information from the second communications apparatus, where the first configuration information is used to configure semi-static transmission, and the physical shared channel carrying the semi-static transmission includes the first physical shared channel.

Optionally, the first configuration information is further configured to configure N physical shared channels for semi-static transmission, where the N physical shared channels include the first physical shared channel, and N is a positive integer.

Optionally, the first configuration information is further used to indicate that the control information is applied to M physical shared channels corresponding to the semi-statically transmitted data, where M is a positive integer multiple of N.

The data of the M physical shared channels are processed according to a first modulation mode and/or a first coding mode of the control information.

In the embodiment of the present application, the symbols mapped on the first physical shared channel by the control information do not include symbols carrying a demodulation reference signal (DM-RS) on the first physical shared channel. The DM-RS symbol is used for channel estimation by the receiving end device, and the closer to the RE of the DM-RS signal, the more accurate the obtained channel estimation data is, so that the data is usually considered to be multiplexed near the DM-RS symbol.

The first physical shared channel includes a first symbol, the first symbol is a first symbol not carrying DM-RS in the first physical shared channel, the first symbol includes a first Resource Element (RE), the first RE is a resource element not carrying PT-RS, the control information is mapped on the first RE on the first symbol according to a first frequency domain mapping interval, and the first frequency domain mapping interval is determined according to the number of the first RE on the first symbol and the number of REs on which the control information is not mapped.

Optionally, the first physical shared channel further includes a second symbol, where the second symbol is a symbol, adjacent to the first symbol, that does not carry control information and DM-RS, and the second symbol includes the first RE, the control information is mapped on the first RE on the second symbol according to a second frequency-domain mapping interval, and the second frequency-domain mapping interval is determined according to the number of the first RE on the second symbol and the number of REs to which the control information is not mapped.

Optionally, the first configuration information is further used to indicate symbol ordering information of symbols of the first physical shared channel to which the control information is mapped, wherein the symbol ordering information is ordered or sequentially ordered according to a manner adjacent to the one or more DM-RSs.

Optionally, the first communications device may further receive second configuration information from the second communications device, where the second configuration information is used to indicate a preset time domain density of the phase tracking reference signal PT-RS of the first physical shared channel; and when the control information is mapped on the first RE according to the first frequency domain mapping interval or the second frequency domain mapping interval, skipping the RE occupied by the PT-RS, wherein the RE occupied by the PT-RS is determined according to the preset time domain density.

In the embodiment of the present application, the semi-statically transmitted data is mapped to a second RE on the first physical shared channel, where the second RE is a resource element that does not carry control information, DM-RS, and PT-RS in the first physical shared channel.

Optionally, the control information is further used to indicate hybrid automatic repeat request, HARQ, information.

Optionally, the first configuration information is also used to indicate that the control information is applied to one or more transport blocks, TBs, of the semi-static transmission.

Optionally, the first configuration information is further used to indicate a second modulation scheme and/or a second coding scheme of the control information, and the method further includes: and coding the control information according to the second modulation mode and/or the second coding mode.

The second modulation mode is binary phase shift keying; alternatively, π/2-binary phase shift keying; or, quadrature phase keying modulation; or, quadrature amplitude modulation, the second coding mode is: reed-Muller RM code encoding; or, cyclic redundancy check, CRC, code coding and RM coding; alternatively, repetition coding; alternatively, CRC code encoding and polarization code encoding.

Optionally, with the development of the technology, the second encoding method may further include other encoding methods, which is not limited in this application.

S320, the first communication device decodes the data according to the first modulation and/or the first coding scheme.

Fig. 4 is a schematic flowchart of a specific example of information transmission according to the present application.

And S410, the second communication device encodes the control information according to the second modulation mode and/or the second coding mode.

The second modulation mode is binary phase shift keying; alternatively, pi/2-binary phase shift keying; alternatively, quadrature phase keying modulation; or quadrature amplitude modulation. The second encoding method is as follows: reed-Muller RM code encoding; or, cyclic redundancy check, CRC, code coding and RM coding; alternatively, repetition coding; alternatively, CRC code encoding and polarization code encoding.

In the embodiments of the present application, modulation and coding are collectively referred to as encoding, and demodulation and decoding are correspondingly collectively referred to as decoding, for convenience of description.

For example, taking the control information as MCS, assuming that the size of the control information is 5 bits, as a possible implementation manner, the control information may be directly encoded by reed-muller (RM) code to generate 32 bits of control information; as another possible implementation manner, the method may further include encoding a Cyclic Redundancy Check (CRC) code to generate 11-bit control information, and encoding the 11-bit control information again by using the RM code to generate 32-bit control information; optionally, it may also be repeatedly encoded, for example, by repeating the encoding 3 times, to generate 15 bits of control information; optionally, the CRC code coding may be performed and then the polarization code coding may be performed. The encoded control information may also be modulated by a second modulation scheme, such as quadrature phase keying modulation.

In this embodiment, the second communication device further needs to encode the data according to the first modulation scheme and/or the first coding scheme to obtain the processed data. The first modulation scheme and the first coding scheme may refer to the prior art, or may be other possible modulation schemes and coding schemes, which is not limited in this application.

S420, the second communication device maps the control information and the data on the first physical shared channel.

The control information may include control information processed by a second modulation and/or a second coding scheme, and the data may include data coded by a first modulation and/or a first coding scheme.

Specifically, the control information processed by the second modulation scheme and/or the second coding scheme may be represented as a, and the code length thereof is represented as | a |, and in a QPSK (quadrature phase shift keying) coding scheme, the number of required REs is B = ceil (a |/2), where ceil represents rounding up. Defining a first symbol not bearing DM-RS in a first physical shared channel as a first symbol, defining resource elements not bearing PT-RS as first REs, and determining the number E of the first REs.

On the first symbol, when the number B of REs required for mapping control information is greater than or equal to the number E of first REs on the first symbol, setting a first frequency domain mapping interval, e.g., to 1; when the number B of REs required for mapping control information is less than the number E of first REs on the first symbol, the first frequency domain mapping interval d = floor (E/B), where floor denotes rounding down.

When the first symbol has no remaining first RE and part of the control information is not mapped completely, mapping the remaining control information on a second symbol, where the second symbol is an adjacent symbol of the first symbol that does not carry the control information and the DM-RS. The determination of the frequency domain mapping interval differs from the above method in that B is the number of REs to which the control information is not mapped, i.e. B is an updatable parameter, and the determination of the second frequency domain mapping interval is still performed using the above rule.

It should be understood that the second symbol may include a plurality of symbols, that is, the second symbol is a generic term of a type of symbol, and does not refer to a certain symbol, and when the number of REs required by the control information is large, the second symbol may also include a plurality of second symbols, so that the second frequency domain interval in each second symbol may be the same or different, and this application does not limit this.

It should also be understood that the first frequency domain mapping interval and the second frequency domain mapping interval may be the same or different, and are not limited in this application

For ease of understanding, the application of the above rules in different situations will be described in detail below with reference to fig. 5 to 11.

Case 1

As shown in fig. 5, for example, in downlink transmission of SPS, the number of symbols occupied by a Physical Downlink Control Channel (PDCCH) is 2, that is, symbol 0 and symbol 1 in fig. 5, a first physical shared channel, for example, a Physical Downlink Shared Channel (PDSCH), adopts a mapping manner of mapping type a, there is only one DM-RS, and the DM-RS is type1 and is located on symbol 2, an antenna port number for transmitting SPS data is 1000, time domain resources corresponding to the first physical shared channel are symbols 2 to 13, corresponding resources are 3 Resource Blocks (RBs), that is, each symbol includes 36 REs, and the number is from 0 to 35, and this legend does not include PT-RS signals. It is assumed that the control information includes 5 bits of MCS, and the number of REs B required after the second modulation scheme is quadrature phase modulation and the second coding scheme is (32, k) reed-muller coding is 16. According to the above rule, the PDSCH occupies symbols 2-13, and the first symbol may be assumed initially to be symbol 2. In fig. 5, symbol 2 is used to carry the DM-RS signal, so there is no first RE in symbol 2, and the first symbol is determined to be symbol 3. Symbol 3 is not occupied by DM-RS, and no reference signal is mapped on the symbol, so the first RE on the symbol is all REs of the symbol, i.e. the number of first REs is 36. By calculation, the number B of REs required for control information is 16, and since 16 is smaller than 36, it is determined that the first frequency domain mapping interval is d = floor (36/16) =2, i.e., on symbol 3, one RE required for control information is mapped every 2 REs. As shown in fig. 5, the mapping may be started from the RE numbered 0 in the symbol 3, and the MCS control information is mapped on the REs numbered 0, 2, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 28, 30 on the symbol 3 of the PDSCH.

After the mapping of the control information to the first physical shared channel is completed, the SPS data is mapped to the second RE of the first physical shared channel in a rate matching mode. Exemplarily, taking fig. 5 as an example, the second RE is an RE not carrying control information and DM-RS on symbols 2-13. Since the number of the antenna port is 1000 in fig. 5, the SPS data is mapped to the first physical shared channel in the order of frequency domain first and time domain second starting from symbol 2, that is, the SPS data is mapped to the REs numbered 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35 in symbol 2 of the first physical shared channel first, and then mapped to the REs numbered 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 32, 33, 34, 35 in symbol 3. Then, the data not mapped by the SPS data is mapped to the first physical shared channel in the order of frequency domain first and time domain second, for example, after being mapped to the REs numbered 0 to 35 of symbol 4, the data is continuously mapped to the REs numbered 0 to 35 of symbol 6 until the SPS data is completely mapped. It should be noted that when a Code Division Multiplexing (CDM) group number or a high antenna port number is used for information transmission, the second RE does not include an RE corresponding to a DM-RS of a low CDM group number or a low antenna port number. For example, if the first physical shared channel in fig. 5 uses antenna ports 1002/1003 to transmit data, the position of the DM-RS is the RE numbered 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 29, 31, 33, 35 on the symbol 2, and the RE occupied by the DM-RS for the antenna ports 1000 and 1001 on the symbol 2, that is, 0, 2, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 28, 30, 32, 34, is not used for carrying any data. In this scenario, only symbols 3-13 in the first physical shared channel have the second RE, so SPS data will be multiplexed into the first physical shared channel in the order of frequency domain first and time domain later, starting with symbol 3.

Case 2

When the number B of REs required for the control information is large, it may be further required to map data of the control information onto a second symbol on the first physical shared channel, where the second symbol is a symbol adjacent to the first symbol and not carrying the control information and the DM-RS. In the context of the parameters of scenario 1, as shown in fig. 6, it is assumed that the control information includes 5 bits of MCS, the second modulation method is quadrature phase modulation, the second coding method is 6 bits of CRC and 1/8 polar code, and the number of REs B required by the coded control information is 44, which is different from that in fig. 5. According to the rule described in case 1, the first symbol is determined to be symbol 3. Since the first symbol, symbol 3, does not contain any reference signal, the first RE number of symbol 3 is 36. And because the first RE number in symbol 3 is smaller than the RE number B required for control information, the first frequency domain interval is 1, i.e. each RE on symbol 3 maps one RE required for control information. When the symbol 3 is mapped, the number of the control information unmapped REs is 8, and therefore, the control information needs to be mapped to the second symbol. According to the rule that the second symbol is a symbol adjacent to the first symbol and not carrying control information and DM-RS, the second symbol is determined to be symbol 4 in fig. 6, and the number of first REs in symbol 4 is 36, since 8 is smaller than 36, the second frequency domain mapping interval is determined to be d = floor (36/8) =4, that is, on symbol 4, one RE required for control information is mapped every 4 REs. As shown in fig. 6, it is possible to map from the RE number 0, and then the MCS control information is mapped on the

RE numbers

0, 4, 8, 12, 16, 20, 24, 28 on the symbol 4 of the first physical shared channel.

After the mapping of the control information to the first physical shared channel is completed, the SPS data is mapped to the second RE of the first physical shared channel in a rate matching mode. Taking fig. 6 as an example, the second RE is an RE not carrying control information and DM-RS on symbols 2-13. Therefore, the SPS data is mapped onto the first physical shared channel in the order of frequency domain first and time domain second from symbol 2, and the specific process may refer to scenario 1. It should be noted that, when information transmission is performed by using a CDM group number or a high antenna port number, the second RE does not include the RE corresponding to the DM-RS with a low CDM group number or a low antenna port number. For example, if the first physical shared channel in fig. 5 uses antenna ports 1002/1003 to transmit data, REs occupied by the DM-RS on symbol 2 are 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 29, 31, 33, 35, and then REs occupied by the DM-RS for antenna ports 1000 and 1001 on symbol 2, that is, 0, 2, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 28, 30, 32, 34, are not used for carrying any data. In this scenario, only symbols 4-13 in the first physical shared channel in fig. 6 have the second RE, so the SPS data will be multiplexed into the PSCH in the order of frequency domain first and time domain second, starting with symbol 4. For example, SPS data is mapped to REs numbered 1,2, 3, 5, 6, 7, 9, 10, 11, 13, 14, 15, 17, 18, 19, 21, 22, 23, 25, 26, 27, 29, 30, 31, 32, 33, 34, and 35 in symbol 4, and then the data not mapped to SPS data is mapped to the second REs of symbols 5 to 13, which is not described herein again.

Case 3

In this case, a scenario in which an additional DM-RS is configured in the first physical shared channel is considered. As shown in fig. 7, taking downlink transmission of SPS as an example, the number of symbols occupied by a control channel PDCCH is 2, that is, symbol 0 and symbol 1 in fig. 7, pdsch adopts mapping type a, there are two DM-RSs located on symbol 2 and symbol 11, the antenna port number for transmitting SPS data is 1000, time domain resources corresponding to pdsch are symbols 2-13, corresponding frequency domain resources are 3 RBs, that is, each symbol includes 36 REs, and the number is from 0 to 35, and this figure does not include PT-RS signals.

To facilitate comparison with case 2, it is assumed that the control information processed by the second modulation and/or second coding method needs to occupy 44 REs, and one possible mapping method is to determine that the first symbol is a symbol 3 adjacent to the symbol 2 where the DM-RS is located, map the control information according to the first frequency domain interval being equal to 1 RE, and after the symbol 3 is mapped, the amount of data that is not mapped by the control information is 8, so that the control information needs to be mapped to the second symbol. According to the rule that the second symbol is a symbol which is adjacent to the first symbol and does not carry control information and DM-RS, the second symbol is determined to be symbol 4 in fig. 6, and the number of first REs in symbol 4 is 36, so that the second frequency domain mapping interval is determined to be d = floor (36/8) =4, that is, on symbol 4, one RE required for control information is mapped every 4 REs. In another possible mapping manner, the number of the first symbols may be multiple, as shown in fig. 7, the first symbol is determined to be a symbol 3 adjacent to a symbol 2 where the preceding DM-RS is located and 10 (or 12) adjacent to a symbol 11 where the following DM-RS is located, and the number of the first REs in the symbol 10 (or 12) is 36, so that the first frequency domain mapping interval is determined to be d = floor (36/8) =4, that is, on the symbol 10 (or 12), one RE required for the control information is mapped every 4 REs, so that the REs required for the control information can be mapped into the symbol 3 and the symbol 10 (or 12) according to the first frequency domain mapping interval being 1 RE and the first frequency domain mapping interval being 4 REs.

Optionally, the symbol order of the symbols mapped to the first physical shared channel by the control information may also be determined according to the symbol ordering information, for example, to improve decoding reliability, the symbols may be ordered in a manner that the symbol sequence is adjacent to one or more symbols carrying the DM-RS (for example, the symbol ordering is 3, 10, 12, 4, 5, 6, 7, 8, 9, 13), and for example, to reduce decoding latency, the symbols may be ordered in a sequence (for example, the symbol ordering is 3, 4, 5, 6, 7, 8, 9, 10, 12, 13), which is not limited in this application. For example, when the symbol sequence is 3, 10, 12, 4, 5, 6, 7, 8, 9, and 13, and the symbols where the DM-RS is located are symbol 2 and symbol 11, the

symbols

3, 10, and 12 are first symbols, the

symbols

4, 5, 6, 7, 8, 9, and 13 are second symbols, the control information is mapped onto the symbol 3 with the first frequency domain mapping interval as 1 RE, and if there is control information with unmapped data, the data with unmapped control information is continuously mapped onto the symbol 10 with the first frequency domain mapping interval. After the mapping of the control information to the symbol 10 is completed, if the control information has unmapped data, the unmapped data of the control information is continuously mapped to the symbol 12 until all the control information is mapped to the first physical shared channel.

Case 4

In this case, a scenario in which the PT-RS is included in the first physical shared channel is considered. When the first physical shared channel is configured with the PT-RS, the distribution of the PT-RS needs to be firstly determined, namely, the time domain density and the frequency domain density of the PT-RS need to be firstly determined, wherein the frequency domain density of the PT-RS is related to the number of the distributed RBs, and the time domain density of the PT-RS is determined according to the MCS.

In some embodiments, when the first physical shared channel includes PT-RS, the distribution of PT-RS needs to be determined first, i.e. the time domain density of PT-RS and the number of resource blocks RB allocated by the corresponding physical shared channel are determined first. Wherein, the relation between the time domain density of the PT-RS and the MCS parameter is shown in Table 1, and the relation between the frequency domain density of the PT-RS and the bandwidth is shown in Table 2.

TABLE 1 relationship table of time domain density and MCS parameters of PT-RS

TABLE 2 frequency domain density vs. Bandwidth Table for PT-RS

Bandwidth parameter	Frequency domain density (K) of PT-RS _PT-RS )
		N _RB ＜N _RB0	——
N _RB0 ≤N _RB ＜N _RB1	2
		N _RB1 ≤N _RB	4

Wherein ptrs-MCS1 to ptrs-MCS4 and N in the table _RB0 And N _RB1 Configuring the sending end through RRC signaling (for example, configuring a time domain density timeDensity and a frequency domain density parameter in a PT RS-downlink configuration by a PT-RS, wherein the unit of the time domain density is a symbol, and the time domain density is 2When, it means that every 2 symbols on the time domain map a PT-RS symbol; the unit of the frequency domain density is a symbol, and when the frequency domain density is 4, it means that a PT-RS symbol is mapped every 4 RBs in the time domain. Wherein, partial fields of the PT-RS configuration may be as follows:

specifically, the second configuration information includes or is the PT RS-downlink configuration itself configured for the PT-RS downlink, a new field timeDensitypreset may be added to the field for indicating the time domain density of the PT-RS symbol, the sending end device (i.e., the second communication device) sends the second configuration information to the receiving end device (i.e., the first communication device), and the receiving end device may determine the time domain interval and the frequency domain interval of the PT-RS symbol according to the time domain density timeDensitypreset parameter and the frequency domain freqneydensity parameter in the first configuration information, so as to determine the position distribution of the PT-RS symbol quickly and accurately.

Initiation of PT-RS symbol

Determined according to the following equation (1):

wherein n is _RNTI RNTI, N representing scrambling when DCI schedules data _RB Indicating the total number of RBs to which the physical shared channel resource corresponds.

The position k of the PT-RS at the sub-carrier in the located RB is determined according to the following formula (2):

wherein i = {0,1,2, … },

represents a RThe number of subcarriers in B.

k ^RE _ref The values of (a) are shown in table 3:

wherein, the offsets 00 to 11 are determined according to RRC signaling (for example, resource element offset resourceeementoffset in PT RS-downlink configuration).

In the present application, the number of RBs in semi-persistent scheduling is indicated by the active control information and thus may be considered as a known parameter, while the MCS for each SPS transmission is indicated by the control information in the first physical shared channel and thus is an unknown parameter for the first communication apparatus (receiving end), and if the above-mentioned technique is continuously adopted, the first communication apparatus (receiving end) cannot resolve the PT-RS.

Therefore, in this case, in this embodiment, the second communication apparatus (sending end) may determine distribution of the PT-RS on the first physical shared channel according to the preset time domain density of the PT-RS, and send the preset time domain density to the first communication apparatus (receiving end), so that it can be ensured that the first communication apparatus (receiving end) can normally analyze the PT-RS.

S430, the second communication device determines the preset time domain density of the phase tracking reference signal PT-RS of the first physical shared channel, and configures the preset time domain density of the PT-RS according to the second configuration information. And determining the position of the PT-RS according to the preset time domain density of the PT-RS.

S440, the first communication device receives second configuration information from the second communication device, where the second configuration information is used to indicate a preset time domain density of the phase tracking reference signal PT-RS of the first physical shared channel.

Therefore, the first communication device can determine the position of the PT-RS according to the preset time domain density of the PT-RS, and therefore the PT-RS can be analyzed correctly.

Wherein the preset time domain density of the PT-RS is different from the threshold value set based on the MCS

In the embodiments of the present application, toFor downlink transmission of semi-persistent scheduling (SPS), for example, the physical shared channel comprises 3 RBs in total, the corresponding subcarriers are numbered from 0 to 35, the symbols occupied by the PDCCH are 0 and 1, the symbols occupied by the physical shared channel are from 2 to 13, and the frequency domain density K _PT-RS =2, time domain density L _PT-RS =2, using offset 00, DM-RS port number 0, DM-RS configuration type1, thus determining the initial resource unit in the RB where PT-RS is located

If n is _RNTI =0, starting of PT-RS is determined according to equation (1)

Is 0.

Accordingly, as shown in fig. 8, it can be determined that PT-RSs are located on the 0 th subcarrier, i.e., the 0 th and 24 th subcarriers, on the 0 th and 2 nd RBs, respectively. In addition, because of the time domain density L _PT-RS =2, i.e., one PT-RS symbol is mapped every 2 symbols on the 0 th and 24 th subcarriers, starting from the RE of the first available PDSCH symbol.

The PT-RSs are distributed in this application over REs numbered 0 and 24 on

symbols

4, 6, 8, 10, 12 of the first physical shared channel.

Assume that the second modulation scheme is quadrature phase modulation, the second coding scheme is 6-bit CRC and 1/8 polar code, and RE required for the coded control information is 44. According to the above rule, the first symbol is determined to be symbol 3, and according to the distribution of the time domain density and the frequency domain density of the PT-RS, it can be determined that no PT-RS reference signal is mapped on symbol 3, and thus the number of first REs on symbol 3 is determined to be 36. According to the method described in scenario 1, it is determined that the first frequency domain mapping interval is 1, that is, on symbol 3, an RE required for control information is mapped every 1 RE. After the symbol 3 is mapped, the number of the REs to which the control information is not mapped is 8, and according to a rule that the second symbol is an adjacent symbol that does not carry the control information and the DM-RS of the first symbol, it may be determined that the second symbol is the symbol 4 in the first physical shared channel. Since 2PT-RS signals are mapped on symbol 4, the number of first REs on symbol 4 is 34. Since 8 is smaller than 34, it is determined that the second frequency-domain mapping interval is d = floor (34/8) =4, i.e., one RE required for control information is mapped every 4 REs on symbol 4. Since the REs numbered 0 are occupied by PT-RS, the REs to which the control information is mapped may be mapped starting from the REs numbered 1, and the MCS control information is mapped on the REs numbered 1, 5, 9, 13, 17, 21, 25, 29 on the symbol 4 of the PDSCH.

It should be noted that, when the control information is mapped in the above manner, the mapped REs may coincide with REs occupied by PT-RS, and the REs mapped by the control information may skip the REs. For example, at the RE numbered 0, the control information overlaps with the PT-RS, so at mapping time, the control information may be mapped from the RE numbered 1, at which time the RE mapped by the control information may be shifted backward by 1 RE as a whole, and the control information is mapped on the REs numbered 1, 5, 9, 13, 17, 21, 25, 29 on the symbol 4 of the first physical shared channel in fig. 8; alternatively, the control information coinciding with the PT-RS may defer mapping by 1 RE without affecting the mapping positions of other REs of the control information. Illustratively, as shown in fig. 8, the control information may be mapped from the RE numbered 1, while the RE position of the control information map that does not coincide with the RE occupied by the PT-RS is unchanged, e.g., the control information is mapped on the REs numbered 1, 4, 8, 12, 16, 20, 25 (shifted 1 RE backward because of the PT-RS on the number 24) on the symbol 4 of the first physical shared channel, 28.

Further, when the number of REs required for the control information exceeds the first number of REs on the symbol, the control information is mapped to the next symbol, for example, symbol 5, according to the above rule.

Case 5

In the current NR standard, only one SPS can be scheduled to transmit SPS data at a time (which may also be referred to as a timeslot or transport block TB, that is, one physical shared channel may also be referred to as a timeslot or a TB, and for convenience of description, the physical shared channel is used for description in this application in a unified way), but due to the large size of one XR video frame, multiple SPS need to be scheduled at the same time to transmit one XR video frame. Based on this, in the embodiment of the present application, it is considered that control information is applied to a plurality of SPS for information transmission.

In the embodiment of the present application, a plurality of SPS setting association relationships, for example, an SPS configuration addition modification list indication flag SPS-configToAddModList flag may be added to a bandwidth part (BWP) downlink dedicated information BWP-downlink modification information element to indicate an SPS association relationship in an SPS configuration addition modification list SPS-configToAddModList. For example, when the SPS configuration addition modification list indication flag SPS-configToAddModList flag takes a first value, such as '1', there is an association among the plurality of SPS processes in the SPS configuration addition modification list SPS-configToAddModList, and otherwise, when the SPS configuration addition modification list indication flag SPS-configToAddModList flag takes a second value, such as '0', there is no association. If there is a correlation between SPS in the SPS configuration addition modification list SPS-configToAddModList, the control information in the first physical shared channel of any SPS in the SPS configuration addition modification list SPS-configToAddModList is valid for data transmitted by all related SPS in the SPS configuration addition modification list SPS-configToAddModList. Exemplarily, the SPS configuration addition modification list indication flag SPS-configToAddModListFlag (bold italics) may be shown as follows in partial fields of BWP configuration:

specifically, the first configuration information includes the above-mentioned bandwidth part downlink dedicated information BWP-downlink dedication information element, and the present application may add a field SPS-configToAddModList flag-r18 (bold italics) in the field for indicating SPS association in the SPS configuration addition modification list SPS-configToAddModList. Other parameters in the first configuration information may be referenced to the current third generation partnership project (3) ^rd Technical Specification (TS) 38.331 protocol in the partnership project,3 GPP) standard. The sending end equipment (namely the second communication device) sends the first configuration information to the receiving end equipment (namely the first communication device), and the receiving end equipmentThe SPS in the SPS configuration addition modification list SPS-configToAddModList can be determined to have relevance according to the SPS-configToAddModList flag parameter in the first configuration information, and the control information can be simultaneously applied to a plurality of SPS in the list by setting the association relationship of the plurality of SPS in the list, which is favorable for saving signaling overhead and reducing equipment energy consumption.

As shown in fig. 9, in time division duplex, when a timeslot ratio includes 8 downlink timeslots (DL) and 2 uplink timeslots (UL) per 10 timeslots and a subcarrier spacing (SCS) is 15kHz, it is assumed that the RRC configures 4 SPS to transmit XR video traffic, and a transmission period of each SPS is 10ms. At this time, the 4 SPS settings may be associated. For example, when the SPS configuration addition modification list indication flag SPS-configToAddModList flag is set to take the first value, that is, there is correlation between the 4 SPS, the first physical shared channel may be transmitted in the SPS process indicated by the SPS configuration addition modification list SPS-configToAddModList with the lowest identification SPS-config Index. Illustratively, if the SPS configuration addition modification list SPS-configToAddModList includes 4 SPS, which are respectively corresponding to SPS-config indexes 0-3 (abbreviated as SPS 0-3), as shown in fig. 9 (the illustration does not include PT-RS signals), it indicates that the SPS with the lowest identification SPS-config Index is used for transmitting the first physical shared channel, i.e., the physical shared channel corresponding to SPS0, and the control information of the first physical shared channel is valid for all SPS, i.e., SPS0-3, in the SPS configuration addition modification list SPS-configToAddModList. It should be understood that, when the SPS configuration addition modification list indication flag SPS-configToAddModListFlag takes the first value, SPS of other SPS-config indexes may also be indicated to be used for transmitting the first physical shared channel, which is not limited in this application.

Case 6

Consider the scenario of applying control information to the N physical shared channels of 1 SPS for information transmission.

In this embodiment, indication information may be added to the first configuration information, where the indication information is used to indicate the number of physical shared channels to which the control information applies. The physical shared channels may be adjacent physical shared channels or non-adjacent physical shared channels. One possible way is to add a slot number nrofloot indicator, whose value may be 2 to 8, to the SPS-configuration signaling to indicate the number of physical shared channels scheduled by the SPS. At this time, the nrofloot indicator (bold italics) in the partial field of the SPS configuration may be as follows:

specifically, the first configuration information includes or is itself the SPS-configuration signaling, and the field may be added with a physical shared channel number indication information field nrofSlot, which is used to indicate the number of physical shared channels scheduled by SPS, that is, the number of physical shared channels transmitted by each SPS transmitter. Other parameters in the first configuration information may refer to the TS38.331 protocol in the current 3GPP standard. The sending end device (i.e., the second communication device) sends the first configuration information to the receiving end device (i.e., the first communication device), and the receiving end device may determine the number of physical shared channels to which the control information may be applied according to the nroflot parameter in the first configuration information.

Illustratively, as shown in fig. 10 (the illustration does not include PT-RS signals), it is assumed that in the case of nroflot =4, SPS transmissions starting at D05 would have been due to D05-U00 transmitting data, but U00 is uplink data, so the non-adjacent time slots are D05-D07 and D10. Alternatively, assume that in the case of nroflot =4, as shown in fig. 10 (the illustration does not include PT-RS signals), an SPS transmission starting at D05 should be transmitting data from D05 to U00, but since U00 is used to carry uplink data, the SPS transmission slot is D05 to D07, i.e., since the SPS transmission slot collides with the uplink slot, the SPS transmission should no longer be used for SPS data transmission in the slot of U00 transmission, and the SPS no longer defers or compensates for the SPS transmission slot.

Optionally, the control information may be added to a signaling carried by the PDSCH, for example, an independent control self-contained control ie signaling is added to sps-config in the RRC signaling, and the mapping method shown in this embodiment is not started when the signaling is empty. Alternatively, one or more configuration information, such as MCS, nrofTB, etc., may be included in the independent control seletcontrol ie signaling. At this time, the part of the field in the SPS configuration for the independent control selfcontrol ie signaling (bold italics) may be as follows:

specifically, the first configuration information includes or is itself the SPS-configuration signaling configured for SPS, and a field self _ containedcontrol ie may be added in the field to indicate that the corresponding SPS includes the first physical shared channel. Furthermore, a field MCS may be added to indicate whether the control information in the first physical shared channel includes the first modulation scheme and/or the first coding scheme, and a field nrofTB may be added to indicate whether the control information in the first physical shared channel includes the physical shared channel number indication information. Note that the size of the nrofTB field is a pre-configured parameter known to the sender and receiver devices at this time. Through the nrofTB content in the control information in the first physical channel, the sending end device can flexibly indicate the number of physical shared channels transmitted at each SPS transmission opportunity. It should be noted that the number of physical shared channels may include the first physical shared channel. The sending end device (i.e., the second communication device) sends the first configuration information to the receiving end device (i.e., the first communication device), and the receiving end device may determine the content of the control information in the first physical shared channel according to the self contentidcontrol ie parameter in the first configuration information, determine the first modulation mode and/or the first coding mode of the data in the physical shared channel for SPS transmission according to the MCS parameter in the control information, and determine the number of the physical shared channels transmitted at each SPS transmission opportunity according to the nrofTB parameter in the control information. Other parameters in the first configuration information may refer to the TS38.331 protocol in the current 3GPP standard. By the method, the receiving terminal equipment can accurately and efficiently identify whether the method is effective or not. The control information is loaded in the first configuration information, which is beneficial to reducing communication time delay and saving signaling overhead.

Illustratively, the selfcontainedcontrol ie indicates two parameters, MCS and nrofTB. The specific content indicated by the selefcontainedcontrol ie is not limited by the present application.

Illustratively, the indication information may be multiplexed into the first physical shared channel of each SPS transmission to indicate that the control information is to be effective for the SPS data for that or a subsequent plurality of times.

Specifically, by adding nrofTBs signaling to the first configuration information, one SPS can transmit multiple physical shared channels at a time. For example, when nrofTBs = N4, i.e., N =4, one SPS may transmit 4 physical shared channels at a time. Fig. 10 (the illustration does not include PT-RS signals) shows a scenario where 4 physical shared channels are transmitted for one SPS at 15kHz for SCS and 10ms for SPS transmission period, where D00-D03 are one SPS transmission opportunity and D10-D13 are the next adjacent SPS transmission opportunity. Wherein each transmission opportunity comprises 1 first physical shared channel and 3 physical shared channels. For example, in order to reduce decoding latency, the first TB of each SPS transmission may be used to carry the first physical shared channel, and the control information in the first physical shared channel will take effect on the SPS data of this time, i.e., the control information, such as MCS, in the first physical shared channel of D00 may be used to decode SPS data in D00-D03. Data on D00, D01, D02, and D03 are validated.

It should be understood that, in practical applications, the above case 5 and case 6 may exist simultaneously, which may further reduce the overhead and save the energy consumption.

For example, the control information may be applied to a plurality of physical shared channels of a plurality of SPS, in which case the plurality of physical shared channels may be adjacent physical shared channels, as shown in fig. 11 (this illustration does not include PT-RS signals), SPS0 and SPS1 are included in the SPS configuration addition modification list SPS-configToAddModList, and nrofTBs = n2 in the SPS0 and SPS1 configurations. D00 and D01 are data of one transmission opportunity of SPS0, D10 and D11 are data of the next adjacent transmission opportunity of SPS0, D02 and D03 are data of one transmission opportunity of SPS1, and D12 and D13 are data of the next adjacent transmission opportunity of SPS 1. Illustratively, a first physical shared channel, e.g., D00, is carried in the SPS process indicated in the SPS configuration addition modification list SPS-configToAddModList as the lowest identified SPS-config Index. The control information carried by the first physical shared channel in D00 takes effect on D00-D01 of SPS0 and D02-D03 of SPS1, and the control information carried by D10 takes effect on D10-D11 of SPS0 and D12-D13 of SPS 1. It should be understood that, when the SPS configuration addition modification list indication flag SPS-configToAddModListFlag takes the first value, SPS of other SPS-config indexes may also be indicated to be used for transmitting the first physical shared channel, which is not limited in this application.

It is noted that the periodicity of the first physical shared channel and the periodicity of the one or more SPS in cases 1-6 are the same. That is, a first physical shared channel is carried by one or more SPS transmissions at a time, and control information for the first physical shared channel, such as MCS, may be used for one or more SPS transmission opportunities at a time.

For example, the control information may also be applied to M physical shared channels of one or more SPS, where the M physical shared channels may be non-adjacent physical shared channels, for example, where the M physical shared channels are integer multiples of N physical shared channels of one or more transmission periods of the SPS, that is, M is an integer multiple of N, where the control information is applied to M/N transmission periods of the one or more SPS. As shown in fig. 10, one SPS transmit N =4 physical shared channels, where D00 to D03 are data of one transmission opportunity of SPS0, and D10 to D13 are data of the next adjacent transmission opportunity of SPS 0. When M =8, assuming that the first physical shared channel is located at the time point D00, the control information carried by the first physical shared channel may be valid for D00 to D03 of the SPS0 transmission period and D10 to D13 of the SPS0 next adjacent transmission period. Specifically, one implementation manner is to carry a period parameter (for example, SPS-self contained control element ieperiod in SPS-config) in the first configuration information, where the period parameter is, for example, 2, that means that the control information is effective for information transmission in two transmission periods including this transmission; another possible implementation is to configure the number of validation times in the first configuration information, such as the number of validation times 2, that is, control information indicating that the first physical shared channel occurs once every 2 SPS transmission opportunities. At this time, the period parameter SPS-selfcontainedcontrol ieperiod (bold italics) may be as follows in a partial field of the SPS configuration:

specifically, the first configuration information includes or is itself the SPS-configuration signaling configured for SPS-configuration, and in the present application, a field SPS-self-containedc control ie period may be added in the field, so as to indicate the number of transmission cycles in which the control information is valid, and may also be understood as a cycle interval in which the first physical shared channel occurs. Other parameters in the first configuration information may refer to the TS38.331 protocol in the current 3GPP standard. The sending end device (i.e., the second communication apparatus) sends the first configuration information to the receiving end device (i.e., the first communication apparatus), and the receiving end device may determine, according to the sps-self-containedcontrol ie period parameter in the first configuration information, the number of transmission cycles in which the control information is valid, that is, the control information is valid for the physical shared channels of the next several transmission cycles. By the method, the receiving terminal equipment can identify the number of the transmission cycles of the control information, and further, the control information and the number information of the transmission cycles applied by the control information are simultaneously carried in the first configuration information, thereby being beneficial to improving the transmission flexibility.

Illustratively, the sps-selfcontainedcontrol ieperiod indicates four parameters n1 to n4, and the present application does not limit the number and number of the parameters indicated by the sps-selfcontainedcontrol ieperiod. Alternatively, the sps-selfcontainedcontrol ie period may be put into the independent control selfcontainedcontrol ie signaling as follows:

s450, the first communication device receives control information and data from the second communication device, where the control information and the data are multiplexed on the first physical shared channel, and the control information is used to indicate a first modulation scheme and/or a first coding scheme of the data.

The present application does not limit the sequence of mapping between the control information and the data, for example, the control information may be mapped first, and then the data is mapped, where the data is mapped on a second RE of the first physical shared channel, and the second RE is a resource unit that does not carry the control information, the DM-RS, and the PT-RS in the first physical shared channel. For another example, the mapping of the data may be completed first, and then the mapping of the control information is performed, that is, the control information is mapped onto the resources of the physical shared channel in a "puncturing" manner, and at this time, part of the data may be replaced by the control information. Specifically, SPS data is mapped to a second RE of the first physical shared channel in a frequency domain and time domain sequence by using a rate matching method, where the second RE is a resource unit that does not carry control information, DM-RS, and PT-RS in the first physical shared channel. Note that the second RE also needs to consider the effect of the CDM group and antenna port number. After that, the control information is mapped to the first RE of the physical channel, and since the first RE includes the second RE at this time, that is, the first RE and the second RE correspond to the same RE number in the same symbol, during the process of mapping the control information to the first RE, data mapped to the same RE may be replaced. For example, fig. 5 may also be understood that SPS data is mapped to multiple symbols of the PDSCH in an order of frequency domain first and time domain later from symbol 2 in the first physical shared channel, after the SPS data mapping is finished, it is determined that the first symbol carrying control information is symbol 3, and the first frequency domain mapping interval is d = floor (36/16) =2, that is, every 2 REs are mapped to an RE required for control information on symbol 3, and then the final result is that the control information is mapped to REs with RE numbers of 0, 2, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 28, and 30 on symbol 3 of the first physical shared channel, and data on these REs is replaced.

In this application, "indicating" may indicate explicitly and/or implicitly. Illustratively, the implicit indication may be based on a location and/or resources for the transmission; the explicit indication may be based on one or more parameters, and/or one or more indices, and/or one or more bit patterns that it represents. Furthermore, "indication" may also mean "including", for example, information that the control information indicates a modulation scheme and/or a coding scheme of the semi-static transmission, and may also be expressed as: the control information includes information of a modulation scheme and/or a coding scheme of the semi-static transmission.

S460, the first communication device receives first configuration information from the second communication device, where the first configuration information is used to configure semi-static transmission, and the physical shared channel carrying the semi-static transmission includes a first physical shared channel.

The first configuration information is further used for configuring N semi-statically transmitted physical shared channels, wherein the N physical shared channels include a first physical shared channel. For example, the N physical shared channels may correspond to the physical shared channel of the above-mentioned one SPS, i.e., the period of the control information is the same as the SPS period.

In another implementation, the period of the control information is different from the SPS period, for example, the first configuration information is further used to indicate that the control information is applied to M physical shared channels corresponding to the semi-statically transmitted data, where M is a positive integer multiple of N, that is, the control information is applied to multiple periods of the SPS. For example, as shown in fig. 11, the transmission period of one SPS is 10ms and includes N =4 physical shared channels. Here, D00 includes a first physical shared channel, and control information of the first physical shared channel is effective for M =8 physical shared channels, or a transmission period of the control information is twice as long as an SPS transmission period, that is, 20ms. The M physical shared channels may correspond to physical shared channels of two transmission periods of one SPS. The data of the M physical shared channels are processed according to a first modulation and/or a first coding mode of the control information.

Optionally, the first configuration information is further used for indicating symbol ordering information of symbols of the control information mapped to the first physical shared channel. For example, the symbol ordering information corresponds to the symbol order in case 3 described above. Wherein the symbol ordering information is ordered or ordered sequentially according to the way of being adjacent to one or more DM-RSs.

Optionally, the first configuration information is further used to indicate that the control information is applied to one or more TBs of the semi-static transmission, for example, as described in the above case 6, indication information may be added to the first configuration information to indicate the number of TBs to which the control information is applied. The transport blocks may be adjacent transport blocks or non-adjacent transport blocks.

The first configuration information is further used for indicating a second modulation mode and/or a second coding mode of the control information. In this way, the first communication apparatus can decode the control information according to the second modulation scheme and/or the second coding scheme of the control information to obtain the control information.

S470, the first communication device decodes the data according to the first modulation and/or the first coding scheme.

It should be noted that, the above solution takes an SPS scenario as an example to describe the solution of the present application, but it should not generate any limitation to the application scenario of the present application.

For example, the technical solution of the present application may also be applied to an initial transmission scenario and a retransmission scenario of a dynamic scheduling scenario, taking a downlink scenario as an example, first configuration information (e.g., self-contained control ie signaling) may be added to PDSCH-CONFIG configured by a PDSCH, and the first configuration information may further include a plurality of configuration information, such as configuration information such as MCS, HARQ process identifier ID, and the like. If the first configuration information is configured, the control information may be mapped to the PDSCH resources of the first physical shared channel corresponding to the DCI according to the above-mentioned method, and the receiving end ignores the control information included in the DCI when decoding the DCI, or obtains the control information from the PDSCH without including the configuration information included in the first configuration information in the DCI. Specifically, information such as MCS and HARQ process ID is concatenated in a predetermined order (for example, MCS is first followed by HARQ ID), and then CRC code and channel code are added, and then mapped onto PDSCH resources according to the above method. At this time, the part of the field in the PDSCH configuration for the independent control selefcontnecto control signaling (bold italic) can be as follows:

specifically, the first configuration information includes or is itself the SPS-configuration signaling, and the first configuration information of the present application adds a self-containedcontrol ie field, and adds a field MCS in the field, which is used to indicate whether the control information in the first physical shared channel includes the first modulation scheme and/or the first coding scheme; a field HARQ-ProcessesID may also be added to indicate whether the control information in the first physical shared channel includes HARQ process information; a New Data Indicator (NDI) may be further added to indicate whether the control information in the first physical shared channel includes NDI information, and a Redundancy Version (RV) may be added to indicate whether the control information in the first physical shared channel includes RV information. It should be understood that the bit sizes of the fields are known in the 3GPP standard, and the bit sizes of each field are known to both the transmitting end and the receiving end device. Taking the current 3GPP release16 as an example, the MCS field is composed of 5 bits, the HARQ-processID is composed of 4 bits, and the like, the size of the information field may be updated according to the change of the 3GPP release. Other parameters in the first configuration information may refer to the TS38.331 protocol in the current 3GPP standard. The sending end device (i.e., the second communication apparatus) sends the first configuration information to the receiving end device (i.e., the first communication apparatus), and the receiving end device may determine, according to the first configuration information, content included in the control information in the first physical shared channel, so as to determine an MCS parameter, an HARQ-processes id parameter, an NDI parameter, or an RV parameter of the SPS data. Furthermore, a plurality of control information about the data of the same physical shared channel are simultaneously carried in the first configuration information, which is beneficial to reducing communication delay and saving signaling overhead.

For another example, the technical solution of the present application may also be applied to a retransmission scenario, and may add first configuration information (e.g., retransmission independent control retransmission self context control ie signaling) to the PDSCH-Config, where the first configuration information may include a plurality of configuration information, such as configuration information such as MCS and HARQ process ID. If the first configuration information is configured, the control signaling may be mapped to the PDSCH resources corresponding to the DCI according to the above-mentioned method, and the receiving end may ignore the control information contained in the DCI and obtain the control information from the PDSCH when decoding the DCI. Specifically, information such as MCS and HARQ process ID is concatenated according to a predetermined order (for example, MCS is first followed by HARQ ID), then CRC code and channel code are added, and then mapped onto PDSCH resources according to the above method. Alternatively, when the receiving end knows the specific position of the retransmission time, the receiving end may choose not to decode the DCI, but to receive the PDSCH data of the corresponding time slot and decode the control information therefrom.

In addition, the technical solution of the present application may also be applied to an SPS retransmission scenario, and the specific mapping method thereof may refer to the introduction in the SPS scenario. Retransmission independent control (retransmission) self-containedcontrol (dcontrol ie) signaling may be added in the SPS-Config (i.e., the first configuration information), which may contain a plurality of configuration information, such as MCS, HARQ process ID, etc. If the first configuration information is configured, the control signaling may be mapped to the PDSCH resources corresponding to the DCI according to the above-mentioned method, and the receiving end may ignore the control information contained in the DCI and obtain the control information from the PDSCH when decoding the DCI. Specifically, information such as MCS and HARQ process ID is concatenated in a predetermined order (for example, MCS is first followed by HARQ ID), and then CRC code and channel code are added, and then mapped onto PDSCH resources according to the above method. Alternatively, when the receiving end knows the specific position of the retransmission time, the receiving end may choose not to decode the DCI, but to receive the PDSCH data of the corresponding time slot and decode the control information therefrom. For example, retransmission independent control retransmission self context control ie signaling (bold italics) may be as follows in a partial field of the SPS configuration:

specifically, the first configuration information includes or is itself the SPS-config signaling configured above, and the present application may add a field retransmission selfcontainedcontrol ie in a field to indicate that the method may be applied to a retransmission scenario. Further, as described above, the MCS parameter, the HARQ-processes id parameter, the NDI parameter, or the RV parameter may be added to the retransmission selfcontainedcontrol ie, and the corresponding meaning of each parameter is referred to above, which is not described herein for brevity. Other parameters in the first configuration information may refer to the TS38.331 protocol in the current 3GPP standard. The sending end device (i.e., the second communication apparatus) sends the first configuration information to the receiving end device (i.e., the first communication apparatus), and the receiving end device may apply the technical solution to a retransmission scenario according to the retransmission selfcontainedcontrol ie parameter in the first configuration information. Specifically, after the field of the retransmission selfcontainedcontrol ie is configured and the receiving end device determines that the currently received data is the retransmission data, the information indicated by the corresponding parameter may be obtained by decoding the MCS parameter, the HARQ-ProcessesID parameter, the NDI parameter, or the RV parameter of the control information in the first physical shared channel, so as to decode the data in the first physical shared channel. And simultaneously loading a plurality of pieces of control information about the data of the same physical shared channel in the first configuration information, which is beneficial to reducing communication time delay and saving signaling overhead.

The technical scheme provided by the application can also be applied to sidelink (sidelink) transmission. Specifically, the semi-static transmission of the sidelink transmission may include a CG transmission and an SPS transmission, and the CG transmission and the SPS transmission may refer to the description of the uplink transmission (i.e., CG transmission) and the downlink transmission (i.e., SPS transmission) described above, and are not described herein again.

Optionally, in the sidelink transmission, the first physical shared channel may specifically be a Physical Sidelink Control Channel (PSCCH), and the control information in the first physical shared channel may be any one of Sidelink Control Information (SCI), such as MCS, or a combination of any multiple control signaling, such as MCS and HARQ. The flow of the method in sideline transmission is basically similar to the flow of downlink transmission described in this application, and a person skilled in the art can know how to design the flow of sideline transmission according to the example of downlink transmission (the flow of the method 400) in this application, and details are not described here.

It should be understood that the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

It is also to be understood that the terminology and/or the description of the various embodiments herein is consistent and mutually inconsistent if no specific statement or logic conflicts exists, and that the technical features of the various embodiments may be combined to form new embodiments based on their inherent logical relationships.

It is to be understood that, in the above embodiments of the present application, the method implemented by the communication device may also be implemented by a component (e.g., a chip or a circuit) that can be configured inside the communication device.

Hereinafter, the information transmission device according to the embodiment of the present application will be described in detail with reference to fig. 12 and 13. It should be understood that the description of the apparatus embodiment corresponds to the description of the method embodiment, and therefore, for the sake of brevity, some details are not repeated herein.

In the embodiment of the present application, the functional modules may be divided according to the above method example for the transmitting end device or the receiving end device, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation. The following description will be given taking the example of dividing each functional module corresponding to each function.

Fig. 12 is a schematic block diagram of an example of an information transmission apparatus 1200 provided in the present application. Any of the devices involved in any of the methods 300 and 400, such as the first communication device and the second communication device, may be implemented by the information transmission device shown in fig. 12.

It is understood that the information transmission device 1200 may be a physical device, a component of a physical device (e.g., an integrated circuit, a chip, etc.), or a functional module in a physical device.

As shown in fig. 12, the information transmission apparatus 1200 includes: one or more processors 1210. Alternatively, an interface may be called in the processor 1210 to implement the receiving and sending functions. The interface may be a logical interface or a physical interface, which is not limited in this respect. For example, the interface may be a transceiver circuit, an input-output interface, or an interface circuit. The transceiver circuitry, input/output interface or interface circuitry for implementing the receive and transmit functions may be separate or integrated. The transceiver circuit or the interface circuit may be used for reading and writing code/data, or the transceiver circuit or the interface circuit may be used for transmitting or transferring signals.

Alternatively, the interface may be implemented by a transceiver. Optionally, the information transmission apparatus 1200 may further include a transceiver 1230. The transceiver 1230 may also be referred to as a transceiving unit, a transceiver, a transceiving circuit, etc. to implement transceiving functions.

Optionally, the information transmission apparatus 1200 may further include a memory 1220. The embodiment of the present application does not specifically limit the specific disposition location of the memory 1220, and the memory may be integrated into the processor or may be independent from the processor. In the case where the information transmission apparatus 1200 does not include a memory, the information transmission apparatus 1200 may have a processing function, and the memory may be disposed in another location (e.g., a cloud system).

The processor 1210, memory 1220 and transceiver 1230 communicate with each other, passing control and/or data signals, via the internal connection paths.

It is understood that, although not shown, the information transmission apparatus 1200 may also include other devices, such as an input device, an output device, a battery, etc.

Optionally, in some embodiments, the memory 1220 may store execution instructions for performing the methods of embodiments of the present application. The processor 1210 may execute the instructions stored in the memory 1220 to perform the steps of the method described below in combination with other hardware (e.g., the transceiver 1230), and the specific working procedures and advantages can be referred to the description of the above method embodiments.

The method disclosed in the embodiments of the present application may be applied to the processor 1210, or may be implemented by the processor 1210. Processor 1210 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the method 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. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in a Random Access Memory (RAM), a flash memory, a read-only memory (ROM), a programmable ROM, an electrically erasable programmable memory, a register, or other storage media that are well known in the art. The storage medium is located in a memory, and a processor reads instructions in the memory and combines hardware thereof to complete the steps of the method.

It will be appreciated that the memory 1220 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 read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. Volatile memory can be random access memory, RAM, which acts as external cache memory. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM, enhanced SDRAM, SLDRAM, synchronous Link DRAM (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

Fig. 13 is a schematic block diagram of an information transmission apparatus 1300 provided herein.

Optionally, the specific form of the information transmission apparatus 1300 may be a general-purpose computer device or a chip in a general-purpose computer device, which is not limited in this embodiment of the present application. As shown in fig. 13, the information transmission apparatus includes a processing unit 1310 and a transceiving unit 1320.

Specifically, the information transmission apparatus 1300 may be any device related to the present application, and may implement the functions that can be implemented by the device. It should be understood that the information transmission apparatus 1300 may be a physical device, a component (e.g., an integrated circuit, a chip, etc.) of the physical device, or a functional module in the physical device.

In a possible design, the information transmission apparatus 1300 may be the first communication apparatus in the foregoing method embodiment, and may also be a chip for implementing the function of the first communication apparatus in the foregoing method embodiment.

As an example, the communication device is configured to perform the actions performed by the first communication device in fig. 4, the transceiving unit 1320 is configured to perform S440, S450, and S460, and the processing unit 1310 is configured to perform S470.

For example, the transceiver unit is configured to receive control information and data, where the control information and the data are multiplexed in a first physical shared channel, and the control information is used to indicate a first modulation scheme and/or a first coding scheme of the data;

and the processing unit is used for processing the data according to the first modulation and/or the first coding mode.

Optionally, the transceiver unit is further configured to receive first configuration information, where the first configuration information is used to configure semi-static transmission, and the physical shared channel carrying the semi-static transmission includes a first physical shared channel.

Optionally, the transceiver unit is further configured to receive second configuration information, where the second configuration information is used to indicate a preset time domain density of a phase tracking reference signal PT-RS of the first physical shared channel.

It is further understood that when the information transmission apparatus 1300 is a first communication apparatus, the transceiving unit 1320 in the information transmission apparatus 1300 can be implemented by a communication interface (such as a transceiver or an input/output interface), and the processing unit 1310 in the information transmission apparatus 1300 can be implemented by at least one processor, for example, which can correspond to the processor 1110 shown in fig. 11.

Optionally, the information transmission apparatus 1300 may further include a storage unit, and the storage unit may be configured to store instructions or data, and the processing unit may call the instructions or data stored in the storage unit to implement the corresponding operation.

It should be understood that, the specific processes of the units for executing the corresponding steps are already described in detail in the above method embodiments, and are not described herein again for brevity.

In another possible design, the information transmission apparatus 1300 may be the second communication apparatus in the above method embodiment, or may be a chip for implementing the function of the second communication apparatus in the above method embodiment.

As an example, the communication device is configured to perform the actions performed by the second communication device in fig. 4, the processing unit 1310 is configured to perform S410, S420, and S430, and the transceiving unit 1320 is configured to perform S440, S450, and S460.

For example, the processing unit is configured to encode data according to a first modulation and/or a first coding scheme; a transceiver unit, configured to send control information and the data, where the control information and the data are multiplexed in a first physical shared channel, and the control information is used to indicate the first modulation scheme and/or the first coding scheme of the data.

Optionally, the transceiver unit is further configured to send first configuration information, where the first configuration information is used to configure semi-static transmission, and the physical shared channel carrying the semi-static transmission includes a first physical shared channel.

Optionally, the transceiver unit is further configured to send second configuration information, where the second configuration information is used to indicate a preset time domain density of a phase tracking reference signal PT-RS of the first physical shared channel.

It is to be further understood that when the information transmission apparatus 1300 is a second communication apparatus, the transceiver 1320 in the information transmission apparatus 1300 can be implemented by a communication interface (such as a transceiver or an input/output interface), for example, can correspond to the communication interface 1130 shown in fig. 11, and the processing unit 1310 in the information transmission apparatus 1300 can be implemented by at least one processor, for example, can correspond to the processor 1110 shown in fig. 11.

It should be understood that the specific processes of the units for executing the corresponding steps are already described in detail in the above method embodiments, and therefore, for brevity, detailed descriptions thereof are omitted.

In addition, in the present application, the information transmission apparatus 1300 is presented in the form of a functional module. As used herein, a "module" may refer to an Application Specific Integrated Circuit (ASIC), an electronic circuit, a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and/or other devices that may provide the described functionality. In a simple embodiment, those skilled in the art will appreciate that apparatus 1300 may take the form shown in FIG. 13. The processing unit 1310 may be implemented by the processor 1110 shown in fig. 11. Alternatively, if the computer device shown in FIG. 11 includes the memory 1130, the processing unit 1310 may be implemented by the processor 1110 and the memory 1130. The transceiving unit 1320 may be implemented by the transceiver 1130 shown in fig. 11. The transceiver 1130 includes a receiving function and a transmitting function. In particular, the processor is implemented by executing a computer program stored in the memory. Alternatively, when the apparatus 1300 is a chip, the functions and/or implementation processes of the transceiving unit 1320 may also be implemented by pins or circuits, etc. Alternatively, the memory may be a storage unit in the chip, such as a register, a cache, or the like, and the storage unit may also be a storage unit located outside the chip in the information transmission apparatus, such as the memory 1130 in fig. 11, or may also be a storage unit disposed in another system or device, which is not in the computer device.

Various aspects or features of the disclosure may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. For example, computer-readable media may include, but are not limited to: magnetic storage devices (e.g., hard disk, floppy disk, or magnetic strips), optical disks (e.g., compact Disk (CD), digital Versatile Disk (DVD), or the like), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROM), card, stick, or key drive, or the like). In addition, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" can include, without being limited to, various other media capable of storing, containing, and/or carrying instruction(s) and/or data.

According to the method provided by the embodiment of the present application, the present application further provides a computer program product, which includes: a computer program or a set of instructions which, when run on a computer, causes the computer to perform the method of any one of the embodiments shown in figures 3 and 4.

According to the method provided by the embodiment of the present application, the present application further provides a computer-readable storage medium, which stores a program or a set of instructions, and when the program or the set of instructions is executed on a computer, the computer is caused to execute the method of any one of the embodiments shown in fig. 3 and fig. 4.

According to the method provided by the embodiment of the present application, the present application further provides a communication system, which includes the foregoing apparatus or device.

As used in this specification, the terms "component," "module," "system," and the like are intended to refer to a computer-related entity, either hardware, firmware, a combination of hardware and software, or software in execution. For example, a component may be, but is not limited to being, a process running on a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a computing device and the computing device can be a component. One or more components can reside within a process and/or thread of execution and a component may be localized on one computer and/or distributed between two or more computers. In addition, these components can execute from various computer readable media having various data structures stored thereon. The components may communicate by way of local and/or remote processes based on a signal having one or more data packets (e.g., data from two components interacting with another component in a local system, distributed system, and/or across a network, such as the internet with other systems by way of the signal).

It should also be understood that the term "and/or" herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship.

It should also be understood that the numbers "first", "second", and the like in the embodiments of the present application are introduced only for distinguishing different objects, for example, for distinguishing different "information", or "device", or "unit", and the understanding of the specific object and the corresponding relationship between different objects should be determined by the functions and the inherent logic thereof, and should not constitute any limitation to the implementation process of the embodiments of the present application.

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

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of information transmission, comprising:

receiving control information and data, wherein the control information and the data are multiplexed in a first physical shared channel, and the control information is used for indicating a first modulation mode and/or a first coding mode of the data;

and decoding the data according to the first modulation mode and/or the first coding mode.

2. The method of claim 1, wherein the data comprises semi-statically transmitted data.

3. The method according to claim 1 or 2, characterized in that the method further comprises:

receiving first configuration information, where the first configuration information is used to configure the semi-static transmission, and a physical shared channel carrying the semi-static transmission includes the first physical shared channel.

4. The method according to any of claims 1 to 3, wherein the first configuration information is further used to configure N physical shared channels for the semi-static transmission, where the N physical shared channels include the first physical shared channel, and N is a positive integer.

5. The method of claim 4, wherein the first configuration information is further used to indicate that the control information is applied to M physical shared channels corresponding to the semi-statically transmitted data, where M is a positive integer multiple of N.

6. The method of claim 5, wherein the data of the M physical shared channels is processed according to the first modulation and/or the first coding scheme of the control information.

7. The method according to any one of claims 1 to 6, wherein the symbols on the first physical shared channel to which the control information is mapped do not include symbols carrying demodulation reference signals, DM-RS, on the first physical shared channel.

8. The method of any of claims 1 to 7, wherein the first physical shared channel comprises a first symbol, the first symbol being a first one of the first physical shared channel not carrying the DM-RS, the first symbol comprising first Resource Elements (REs), the first REs being resource elements not carrying the PT-RS,

the control information is mapped on the first REs on the first symbol according to a first frequency-domain mapping interval, which is determined according to the number of the first REs on the first symbol and the number of REs to which the control information is not mapped.

9. The method of claim 8, wherein the first physical shared channel further comprises a second symbol, the second symbol being a symbol adjacent to the first symbol that does not carry the control information and the DM-RS, the second symbol comprising the first RE,

the control information is mapped on the first REs on the second symbol according to a second frequency domain mapping interval, which is determined according to the number of the first REs on the second symbol and the number of REs to which the control information is not mapped.

10. The method according to any of claims 1 to 9, wherein the first configuration information is further used for indicating symbol ordering information of symbols mapped to the first physical shared channel by the control information,

the symbol ordering information is ordered or ordered according to the mode adjacent to one or more DM-RSs.

11. The method according to any one of claims 1 to 10, further comprising:

receiving second configuration information, wherein the second configuration information is used for indicating a preset time domain density of a phase tracking reference signal (PT-RS) of the first physical shared channel;

and when the control information is mapped on the first RE according to the first frequency domain mapping interval or the second frequency domain mapping interval, skipping the RE occupied by the PT-RS, wherein the RE occupied by the PT-RS is determined according to the preset time domain density.

12. The method according to any of claims 1-11, wherein the semi-statically transmitted data is mapped to second REs on the first physical shared channel, the second REs being resource elements of the first physical shared channel that do not carry the control information, the DM-RS, and the PT-RS.

13. The method according to any of claims 1 to 12, wherein said control information is further used for indicating hybrid automatic repeat request, HARQ, information.

14. The method according to any of claims 1 to 13, wherein said first configuration information is further used to indicate that said control information applies to one or more transport blocks, TBs, of said semi-static transmission.

15. The method according to any of claims 1 to 14, wherein the first configuration information is further used for indicating a second modulation scheme and/or a second coding scheme of the control information.

16. The method of claim 15, further comprising:

decoding the control information according to the second modulation mode and/or the second coding mode;

the second modulation mode is as follows:

binary phase shift keying; or,

pi/2-binary phase shift keying; or,

quadrature phase keying modulation; or,

quadrature amplitude modulation;

the second encoding mode is as follows:

Reed-Muller RM code encoding; or,

cyclic Redundancy Check (CRC) code coding and RM coding; or,

repeating the encoding; or,

CRC code encoding and polar code encoding.

17. A method of information transmission, comprising:

coding data according to a first modulation mode and/or a first coding mode;

and sending control information and the data, wherein the control information and the data are multiplexed in a first physical shared channel, and the control information is used for indicating the first modulation mode and/or the first coding mode of the data.

18. The method of claim 17, wherein the data comprises semi-statically transmitted data.

19. The method according to claim 17 or 18, further comprising:

and sending first configuration information, wherein the first configuration information is used for configuring the semi-static transmission, and the physical shared channel carrying the semi-static transmission comprises the first physical shared channel.

20. The method according to any of claims 17 to 19, wherein the first configuration information is further used to configure N physical shared channels for the semi-static transmission, where the N physical shared channels include the first physical shared channel, and N is a positive integer.

21. The method of claim 20, wherein the first configuration information is further used to indicate that the control information is applied to M physical shared channels corresponding to the semi-statically transmitted data, where M is a positive integer multiple of N.

22. The method of claim 21, wherein the data of the M physical shared channels is processed according to the first modulation and/or the first coding scheme of the control information.

23. The method according to any one of claims 17 to 22, wherein the symbols on the first physical shared channel to which the control information is mapped do not include symbols carrying demodulation reference signals, DM-RS, on the first physical shared channel.

24. The method of any of claims 17 to 23, wherein the first physical shared channel comprises a first symbol, the first symbol being a first one of the first physical shared channel not carrying the DM-RS, the first symbol comprising first Resource Elements (REs), the first REs being resource elements not carrying the PT-RS,

25. The method of claim 24, wherein the first physical shared channel further comprises a second symbol, wherein the second symbol is an adjacent symbol of the first symbol that does not carry the control information and the DM-RS, wherein the second symbol comprises the first RE,

26. The method according to any of claims 17 to 25, wherein the first configuration information is further used for indicating symbol ordering information of symbols mapped to the first physical shared channel by the control information, wherein,

27. The method of any one of claims 17 to 26, further comprising:

sending second configuration information, wherein the second configuration information is used for indicating a preset time domain density of a phase tracking reference signal (PT-RS) of the first physical shared channel;

28. The method of any of claims 17-27, wherein the semi-statically transmitted data is mapped to second REs on the first physical shared channel, wherein the second REs are resource elements of the first physical shared channel that do not carry the control information, the DM-RS, and the PT-RS.

29. The method according to any of the claims 17 to 28, wherein said control information is further used for indicating hybrid automatic repeat request, HARQ, information.

30. The method according to any of claims 17 to 29, wherein said first configuration information is further used to indicate that said control information applies to one or more transport blocks, TBs, of said semi-static transmission.

31. The method according to any of claims 17 to 30, wherein the first configuration information is further used for indicating a second modulation scheme and/or a second coding scheme of the control information.

32. The method of claim 31, further comprising:

coding the control information according to the second modulation mode and/or the second coding mode;

the second modulation mode is as follows:

binary phase shift keying; or,

pi/2-binary phase shift keying; or,

quadrature phase keying modulation; or,

quadrature amplitude modulation;

the second encoding mode is as follows:

Reed-Muller RM code encoding; or,

cyclic Redundancy Check (CRC) code encoding and RM encoding; or,

repeating the encoding; or,

CRC code encoding and polar code encoding.

33. A communications apparatus, comprising:

a memory for storing computer instructions;

a processor for executing computer instructions stored in the memory to cause the communication device to perform the method of any one of claims 1 to 16, or,

causing the communication device to perform the method of any of claims 17 to 32.

34. A computer-readable storage medium, having stored thereon a computer program which, when executed by a communication apparatus, causes the method of any of claims 1-32 to be performed.

35. A computer program product comprising instructions which, when run on a computer, cause the method of any one of claims 1 to 32 to be performed.

36. A chip system, comprising: a processor for retrieving and executing computer programs or instructions from the memory so that the communication device on which the system-on-chip is installed implements the method of any one of claims 1 to 32.