WO2023284647A1

WO2023284647A1 - Information transmission method and apparatus

Info

Publication number: WO2023284647A1
Application number: PCT/CN2022/104632
Authority: WO
Inventors: 张彦清; 李雪茹
Original assignee: 华为技术有限公司
Priority date: 2021-07-12
Filing date: 2022-07-08
Publication date: 2023-01-19
Also published as: CN115622663A

Abstract

The present application provides an information transmission method and apparatus, the method comprising: receiving control information and data, the control information and the data being multiplexed in a first physical shared channel, and the control information being used to indicate a first modulation means and/or a first encoding means of the data; and decoding the data according to the first modulation means and/or the first encoding means. According to the technical solution of the present application, the data and the control information corresponding to the data are multiplexed in the same physical shared channel, which helps to provide reliable data transmission while reducing the detection overhead of control information detection.

Description

Method and device for information transmission

This application claims the priority of the Chinese patent application with the application number 202110785449.3 and the application name "A SPS Scheduling Method" submitted to the China Patent Office on July 12, 2021 and submitted to the China Patent Office on August 18, 2021, The priority of the Chinese patent application with the application number 202110948363.8 and the application name "method and device for information transmission", the entire content of which is incorporated in this application by reference.

technical field

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

Background technique

The real-time broadband communication (RTBC) scenario in the future communication system aims to support large bandwidth and low interaction delay. The goal is to increase the bandwidth by 10 times under the given delay and certain reliability requirements, creating Immersive experience when a person interacts with a virtual world. Among them, the extended reality professional (XR Pro) service with ultra-high bandwidth and ultra-low latency requirements poses a more severe challenge to the fifth generation (5G) mobile communication technology. XR mainly includes virtual reality (VR), augmented reality (augmented reality, AR) and mixed reality (mixed reality, MR) and other virtual and reality interaction technologies. Wherein, during the downlink transmission process, the XR content of the server will generate data content at a fixed frequency (for example, 60 Hz or 120 Hz), and transmit it to the XR terminal equipment by the base station side. In addition, due to the needs of graphics generation, devices such as AR and MR need built-in cameras to collect and continuously upload current scene images at a specific frequency (for example, 60Hz).

In the current new radio interface (new radio, NR), two scheduling methods, dynamic scheduling and semi-persistent scheduling, are provided for uplink transmission and downlink transmission. Among them, dynamic scheduling can configure different parameters for each transmission to adapt to changes in the channel state, but dynamic scheduling requires blind detection of control information at the receiving end, which increases the power consumption of the receiving end. Semi-persistent scheduling has the feature of one-time configuration and multiple usage, that is, after parameters are configured once, subsequent transmissions will use the parameters configured this time. Although, under semi-persistent scheduling, the receiving end does not need to blindly detect control information. However, changes to configuration parameters of semi-static transmissions require reconfiguration or reactivation through control messages. In this case, the receiving end still needs to blindly detect the control information, which brings power consumption overhead.

Therefore, there is an urgent need for a method of information transmission, which can not only enable semi-static transmission to make corresponding changes based on channel changes to improve transmission reliability and resource utilization, but also avoid power consumption caused by blind detection of DCI at the receiving end.

Contents of the invention

The present application provides a method and device for information transmission, which help to provide reliable data transmission while reducing the detection overhead of detection control information.

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

According to the technical solution of the present application, by multiplexing the data and the control information corresponding to the data in the same physical shared channel, reliable transmission of data is provided while reducing the detection overhead of detection control information.

Wherein, the above data includes semi-statically transmitted data.

With reference to the first aspect, in some implementations of the first aspect, the above method further includes: receiving first configuration information, the first configuration information is used to configure semi-static transmission, and the physical shared channel carrying semi-static transmission includes the first physical shared channel.

With reference to the first aspect, in some implementations of the first aspect, the first configuration information is also used to configure N physical shared channels for semi-static transmission, 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 implementation manners 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 semi-statically transmitted data, where M is a positive integer multiple of N.

Wherein, the data of the M physical shared channels is processed according to the first modulation and/or first coding manner of the control information.

With reference to the first aspect, in some implementation manners of the first aspect, the symbols mapped to the first physical shared channel by the control information do not include the symbols carrying the demodulation reference signal DM-RS on the first physical shared channel.

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

With reference to the first aspect, in some implementation manners of the first aspect, the first physical shared channel further includes a second symbol, and the second symbol is an adjacent symbol of the first symbol that does not carry control information and a DM-RS, and the second symbol Two symbols include the first RE, and the control information is mapped on the first RE on the second symbol according to the second frequency domain mapping interval, and the second frequency domain mapping interval is based on the number of the first RE on the second symbol and the number of unmapped control information The number of REs is determined.

With reference to the first aspect, in some implementations of the first aspect, the first configuration information is further used to indicate symbol ordering information of symbols that control information is mapped to the first physical shared channel, where the symbol ordering information is based on one or more adjacent DM-RS sorting or sequential sorting.

With reference to the first aspect, in some implementations of the first aspect, the above method further includes: receiving second configuration information, where the second configuration information is used to indicate the preset phase tracking reference signal PT-RS of the first physical shared channel Time domain density: 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, the RE occupied by the PT-RS is skipped, and the RE occupied by the PT-RS is based on the preset time The domain density is determined.

With reference to the first aspect, in some implementations of the first aspect, it is characterized in that the semi-statically transmitted data is mapped to a second RE on the first physical shared channel, and the second RE is a Resource elements carrying control information, DM-RS and PT-RS.

With reference to the first aspect, in some implementation manners of the first aspect, the control information is also used to indicate hybrid automatic repeat request (hybrid automatic repeat request, HARQ) information.

With reference to the first aspect, in some implementation manners of the first aspect, the first configuration information is further used to indicate that the control information applies to one or more transport blocks (transport block, TB) of semi-static transmission.

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

Wherein, the second modulation mode is binary phase shift keying; or, π/2-binary phase shift keying; or, quadrature phase keying modulation; or, quadrature amplitude modulation. The second encoding manner is: Reed-Muller RM code encoding; or, cyclic redundancy check CRC code encoding and RM encoding; or, repetition encoding; or, CRC code encoding and polar code encoding.

In a second aspect, a method for information transmission is provided, including: encoding data according to a first modulation method and/or a first encoding method; sending control information and data, and multiplexing the control information and data in the first physical shared In the channel, the control information is used to indicate the first modulation mode and/or the first coding mode of the data.

Wherein, the above data includes semi-statically transmitted data.

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

With reference to the second aspect, in some implementations of the second aspect, the first configuration information is also used to configure N physical shared channels for semi-static transmission, 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 implementation manners 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 semi-statically transmitted data, where M is a positive integer multiple of N.

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

With reference to the second aspect, in some implementation manners of the second aspect, the symbols mapped to the first physical shared channel by the control information do not include the symbols carrying the demodulation reference signal DM-RS on the first physical shared channel.

With reference to the second aspect, in some implementation manners of the second aspect, the first physical shared channel includes a first symbol, where the first symbol is the first symbol in the first physical shared channel that does not carry a DM-RS, and the first A symbol includes a first resource unit RE, and the first RE is a resource unit that does not carry a PT-RS, and 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 based on the first frequency domain mapping interval The number of first REs on a symbol is determined by the number of REs to which control information is not mapped.

With reference to the second aspect, in some implementation manners of the second aspect, the first physical shared channel further includes a second symbol, and the second symbol is an adjacent symbol of the first symbol that does not carry control information and DM-RS, and the second symbol Two symbols include the first RE, and the control information is mapped on the first RE on the second symbol according to the second frequency domain mapping interval, and the second frequency domain mapping interval is based on the number of the first RE on the second symbol and the number of unmapped control information The number of REs is determined.

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 that control information is mapped to the first physical shared channel, where the symbol ordering information is based on adjacent one or more DM-RS sorting or sequential sorting.

With reference to the second aspect, in some implementations of the second aspect, the above method further includes: sending second configuration information, where the second configuration information is used to indicate the preset of the phase tracking reference signal PT-RS of the first physical shared channel Time domain density: 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, the RE occupied by the PT-RS is skipped, and the RE occupied by the PT-RS is based on the preset time The domain density is determined.

With reference to the second aspect, in some implementations of the second aspect, the semi-statically transmitted data is mapped to a second RE on the first physical shared channel, and the second RE is that the first physical shared channel does not carry control information, Resource elements of DM-RS and PT-RS.

With reference to the second aspect, in some implementation manners of the second aspect, the control information is also used to indicate hybrid automatic repeat request (HARQ) information.

With reference to the second aspect, in some implementation manners of the second aspect, the first configuration information is further used to indicate that the control information applies to one or more transport blocks TB for 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 mode and/or a second coding mode of the control information, and the above method further includes: according to the second modulation way and/or the second coding way, to encode the control information.

Wherein, the second modulation method is quadrature phase keying modulation, and the second coding method is: Reed-Muller RM code coding; or, cyclic redundancy check CRC code coding and RM coding; or, repetition coding; or, CRC code encoding and polar code encoding.

In a third aspect, a communication device is provided, and the communication device is configured to execute the communication method provided in the first aspect above. Specifically, the communication device includes a module for executing the communication method provided in the first aspect.

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

A possible implementation manner is that the communication device includes: a transceiver unit configured to receive control information and data, the control information and data are multiplexed in the first physical shared channel, and the control information is used to indicate the first modulation mode of the data and/or the first coding method; a processing unit configured to decode the data according to the first modulation method and/or the first coding method.

Wherein, the above data includes 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, the first configuration information is used to configure semi-static transmission, and the physical shared channel carrying semi-static transmission includes the first physical shared channel.

With reference to the third aspect, in some implementations of the third aspect, the first configuration information is also used to configure N physical shared channels for semi-static transmission, 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 implementation manners 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 semi-statically transmitted data, where M is a positive integer multiple of N.

With reference to the third aspect, in some implementation manners of the third aspect, the symbols mapped to the first physical shared channel by the control information do not include the symbols carrying the demodulation reference signal DM-RS on the first physical shared channel.

With reference to the third aspect, in some implementation manners of the third aspect, the first physical shared channel includes a first symbol, where the first symbol is the first symbol in the first physical shared channel that does not carry a DM-RS, and the first A symbol includes a first resource unit RE, and the first RE is a resource unit that does not carry a PT-RS, and 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 based on the first frequency domain mapping interval The number of first REs on a symbol is determined by the number of REs to which control information is not mapped.

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

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 that control information is mapped to the first physical shared channel, where the symbol ordering information is based on adjacent one or more DM-RS sorting or sequential sorting.

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, and the second configuration information is used to indicate the preset time of the phase tracking reference signal PT-RS of the first physical shared channel. Set the time domain density; the processing unit is also used to skip 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 PT-RS occupies Occupied REs are determined according to a preset time-domain density.

With reference to the third aspect, in some implementation manners of the third aspect, it is characterized in that the semi-statically transmitted data is mapped to the second RE on the first physical shared channel, and the second RE is the second RE on the first physical shared channel. Resource elements carrying control information, DM-RS and PT-RS.

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

With reference to the third aspect, in some implementation manners of the third aspect, the first configuration information is further used to indicate that the control information is applied to one or more transport blocks (transport block, TB) of the semi-static transmission.

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

In a fourth aspect, a communication device is provided, and the communication device is configured to execute the communication method provided in the second aspect above. Specifically, the communication device includes a module for executing the communication method provided by the second aspect.

Exemplarily, the communication device is a sending end of wireless communication.

As a possible implementation manner, the above communication device includes: a processing unit, configured to encode data according to the first modulation mode and/or the first encoding mode; a transceiver unit, configured to send control information and data, and control information and The data is multiplexed in the first physical shared channel, and the control information is used to indicate the first modulation mode and/or the first coding mode of the data.

Wherein, the above data includes semi-statically transmitted data.

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

With reference to the fourth aspect, in some implementations of the fourth aspect, the first configuration information is also used to configure N physical shared channels for semi-static transmission, 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 implementation manners 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 semi-statically transmitted data, where M is a positive integer multiple of N.

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

With reference to the fourth aspect, in some implementation manners of the fourth aspect, the symbols mapped to the first physical shared channel by the control information do not include the symbols carrying the demodulation reference signal DM-RS on the first physical shared channel.

With reference to the fourth aspect, in some implementation manners of the fourth aspect, the first physical shared channel includes a first symbol, where the first symbol is the first symbol in the first physical shared channel that does not carry a DM-RS, and the first A symbol includes a first resource unit RE, and the first RE is a resource unit that does not carry a PT-RS, and 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 based on the first frequency domain mapping interval The number of first REs on a symbol is determined by the number of REs to which control information is not mapped.

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

With reference to the fourth aspect, in some implementation manners of the fourth aspect, the first configuration information is further used to indicate symbol ordering information of symbols that control information is mapped to the first physical shared channel, where the symbol ordering information is based on adjacent one or more DM-RS sorting or sequential sorting.

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, and the second configuration information is used to indicate the preset time of the phase tracking reference signal PT-RS of the first physical shared channel. Set the time domain density; the processing unit is used to skip 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 PT-RS occupies The RE is determined according to the preset temporal density.

With reference to the fourth aspect, in some implementation manners of the fourth aspect, the semi-statically transmitted data is mapped to a second RE on the first physical shared channel, and the second RE is that the first physical shared channel does not carry control information, Resource elements of DM-RS and PT-RS.

With reference to the fourth aspect, in some implementation manners of the fourth aspect, the control information is also used to indicate hybrid automatic repeat request (HARQ) information.

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

With reference to the fourth aspect, in some implementation manners of the fourth aspect, the first configuration information is further used to indicate a second modulation mode and/or a second coding mode of the control information, and the processing unit is specifically configured to, according to the second The modulation mode and/or the second coding mode encode the control information.

In a fifth aspect, a communication device is provided, including a processor and an interface circuit, and the interface circuit is used to receive signals from other communication devices other than the communication device and transmit them to the processor or send signals from the processor For a communication device other than the communication device, the processor implements the method in any possible implementation manner of the foregoing first aspect through a logic circuit or by executing code instructions.

In a sixth aspect, a communication device is provided, including a processor and an interface circuit, and the interface circuit is used to receive signals from other communication devices other than the communication device and transmit them to the processor or send signals from the processor For a communication device other than the communication device, the processor implements the method in any possible implementation manner of the aforementioned second aspect through a logic circuit or by executing code instructions.

In a seventh aspect, a computer-readable storage medium is provided, and a computer program or instruction is stored in the computer-readable storage medium. When the computer program or instruction is executed, any possibility of the aforementioned first or second aspect can be realized. method in the implementation of .

In an eighth aspect, a computer program product including instructions is provided, and when the instructions are executed, the method in any possible implementation manner of the aforementioned first aspect or second aspect is implemented.

In a ninth aspect, a computer program is provided, the computer program includes codes or instructions, and when the codes or instructions are executed, implement the method in any possible implementation manner of the aforementioned first aspect or second aspect.

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

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

Wherein, the first communication device is configured to implement the method in each implementation manner in the above-mentioned first aspect, and the second communication device is configured to implement the method in each implementation manner in the above-mentioned second aspect.

In a possible design, the communication system further includes other devices that interact with the first communication device or the second communication device in the solutions provided in the embodiments of the present application.

Description of drawings

FIG. 1 is a schematic diagram of a communication system 100 to which the present application applies.

FIG. 2 is a schematic diagram of an example of a semi-static transmission method applicable to the present application.

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

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

FIG. 5 is a schematic diagram of an example of multiplexing control information in a single symbol of a physical shared channel in the present application.

FIG. 6 is a schematic diagram of an example of multiple symbols in which the control information of the present application is multiplexed on the physical shared channel.

FIG. 7 is a schematic diagram of an example of multiplexing control information in a physical shared channel carrying additional DM-RS symbols in the present application.

FIG. 8 is a schematic diagram of an example of multiplexing control information in the present application on a physical shared channel carrying PT-RS symbols.

FIG. 9 is a schematic diagram of an example in which the control information of the present application is applied to multiple SPSs.

FIG. 10 is a schematic diagram of an example in which the control information of this application is applied to multiple physical shared channels of one SPS.

FIG. 11 is a schematic diagram of another example of application of control information to multiple physical shared channels of multiple SPSs.

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

FIG. 13 is a schematic diagram of an example of an information transmission device provided by the present application.

detailed description

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

FIG. 1 is a schematic diagram of a communication system 100 applicable to an embodiment of the present application.

As shown in FIG. 1 , the communication system 100 may include one or more network devices, for example, the network device 101 shown in FIG. 1 . The communication system 100 may further include one or more terminal devices (also called user equipment (user equipment, UE)), for example, the terminal device 102, the terminal device 103, and the terminal device 104 shown in FIG. 1 . Wherein, the communication system 100 may support a sidelink communication technology, for example, sidelink communication between the terminal device 102 and the terminal device 103, sidelink communication between the terminal device 102 and the terminal device 104, and the like.

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

The terminal equipment in the embodiment of the present application may refer to user equipment, access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, wireless communication device, user agent or user device . The terminal in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (pad), a computer with a wireless transceiver function, a virtual reality (virtual reality, VR) terminal, an augmented reality (augmented reality, AR) terminal, an industrial Wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical, wireless terminals in smart grid, transportation safety Wireless terminals in smart cities, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop ( wireless local loop (WLL) station, personal digital assistant (personal digital assistant, PDA), handheld device with wireless communication function, computing device or other processing device connected to a wireless modem, vehicle-mounted device, wearable device, 5G network A terminal or a terminal in a future evolved network, etc.

Among them, wearable devices can also be called wearable smart devices, which is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not only a hardware device, but also achieve powerful functions through software support, data interaction, and cloud interaction. Generalized wearable smart devices include full-featured, large-sized, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, etc., and only focus on a certain type of application functions, and need to cooperate with other devices such as smart phones Use, such as various smart bracelets and smart jewelry for physical sign monitoring.

In addition, the terminal device may also be a terminal device in an Internet of Things (internet of things, IoT) system. The technical feature of IoT is to connect objects to the network through communication technology, so as to realize the intelligent network of man-machine interconnection and object interconnection. The present application does not limit the specific form of the terminal device.

It should be understood that, in this embodiment of the present application, the terminal device may be a device for realizing the function of the terminal device, or may be a device capable of supporting the terminal device to realize the function, such as a chip system, and the device may be installed in the terminal. In the embodiment of the present application, the system-on-a-chip may be composed of chips, or may include chips and other discrete devices.

The network device in this embodiment of the present application may be any device with a wireless transceiver function. The equipment includes but is not limited to: evolved node B (evolved Node B, eNB), home base station (for example, home evolved nodeB, or home node B, HNB), base band unit (base band unit, BBU), wireless fidelity ( Access point (access point, AP), wireless relay node, wireless backhaul node, transmission point (transmission point, TP) or transmission and reception point (transmission and reception point, TRP) in wireless fidelity (WIFI) system, etc., It can also be the fifth generation (5th generation, 5G), such as a next generation base station (next generation node B, gNB) in a new generation wireless communication system (new radio, NR), or a transmission point (TRP or TP), One or a group (including multiple antenna panels) antenna panels of the base station in the 5G system, or it can also be a network node that constitutes a gNB or a transmission point, such as a baseband unit (BBU), or a distributed unit (distributed unit, DU) and so on.

In some deployments, a gNB may include a centralized unit (CU) and a DU. The CU implements some functions of the gNB, and the DU implements some functions of the gNB. For example, the CU is responsible for processing non-real-time protocols and services, and realizing the functions of radio resource control (radio resource control, RRC) and packet data convergence protocol (packet data convergence protocol, PDCP) layer. The DU is responsible for processing physical layer protocols and real-time services, realizing the functions of the radio link control (radio link control, RLC) layer, media access control (media access control, MAC) layer and physical (physical, PHY) layer. The gNB may also include an active antenna unit (active antenna unit, AAU for short). The AAU implements some physical layer processing functions, radio frequency processing and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be transformed from the information of the PHY layer, under this architecture, high-level signaling, such as RRC layer signaling, can also be considered to be sent by the DU , or, sent by DU+AAU. It can be understood that the network device may be a device including one or more of a CU node, a DU node, and an AAU node. In addition, the CU can be divided into network devices in an access network (radio access network, RAN), and the CU can also be divided into network devices in a core network (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 a device for realizing the function of the network device, or may be a device capable of supporting the network device to realize the function, such as a chip system, and the device may be installed in the network device.

The technical solution of the embodiment of the present application can be applied to various communication systems, for example: LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), 5G system, car to other equipment (vehicle-to-X, V2X), where V2X can include vehicle to network (vehicle to network, V2N), vehicle to vehicle (vehicle to vehicle, V2V), vehicle to infrastructure (vehicle to infrastructure, V2I), vehicle to Pedestrians (vehicle to pedestrian, V2P), etc., long term evolution-vehicle (LTE-V), vehicle networking, machine type communication (machine type communication, MTC), Internet of things (Internet of things, IoT) , long-term evolution-machine (LTE-M), machine-to-machine (M2M), device-to-device (D2D), etc. or future evolution communication systems, such as the 6th generation (6G) system.

The real time broadband communication (RTBC) scenario under the new vision of 5G aims to support large bandwidth and low interaction delay. Immersive experience when interacting with virtual worlds. Among them, the extended reality (XR) Pro service with ultra-high bandwidth and ultra-low latency requirements poses a more severe challenge to the current 5G. XR mainly includes virtual reality (VR), augmented reality (augmented reality, AR) and mixed reality (mixed reality, MR) and other virtual and reality interaction technologies. Among them, during the downlink transmission process, the XR content of the server will generate data content at a fixed frequency (such as 60Hz, 120Hz), and transmit it to the extended reality terminal equipment (XR UE) by the base station side. In addition, due to the needs of graphics generation, devices such as AR and MR need built-in cameras to collect and continuously upload current scene images at a specific frequency (such as 60Hz).

In NR, data scheduling can generally be divided into dynamic scheduling and semi-persistent scheduling. Among them, semi-persistent scheduling includes configuration grant scheduling and semi-persistent scheduling.

For example, uplink scheduling is divided into two types: dynamic scheduling transmission and configured grant (CG) scheduling-free transmission, and CG scheduling-free transmission is hereinafter referred to as CG transmission. In the dynamic scheduling transmission, before the uplink data transmission, the UE sends a transmission request to the base station and reports the amount of data to be transmitted. The base station allocates corresponding transmission resources for the UE according to the information reported by the UE. Dynamic scheduling can configure different parameters for each transmission to adapt to channel state changes. However, dynamic scheduling requires blind detection of control information at the receiving end, which increases power consumption at the receiving end. Configuring authorized scheduling-free transmission means that the UE does not need to send a scheduling request to the base station every time it transmits, nor does it need to wait for the uplink scheduling permission from the base station, but the UE independently performs periodic uplink data on the resources configured or activated send. The uplink scheduling-free transmission includes type1 and type2. For type1, the uplink scheduling-free transmission configuration is all completed through RRC signaling. For type2, the uplink scheduling-free 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 of the CG transmission change, reactivation or reconfiguration is required, which still requires blind detection of control information at the receiving end, resulting in power consumption overhead.

As shown in Figure 2, the uplink scheduling-free transmission scheme is divided into two types: type1 and type2. Type 1 uplink scheduling-free transmission configuration is completed through RRC signaling, type 2 uplink scheduling-free transmission configuration is completed through RRC signaling and DCI activation signaling. For type1 uplink scheduling-free data transmission, the network device (for example, base station) first configures periodic transmission resources for the terminal device through RRC signaling, and the terminal device can directly transmit on the configured resources when it needs to transmit uplink data. Compared with scheduling-based data transmission, scheduling-free transmission saves time for scheduling requests and data scheduling. All parameters involved in Type1 scheduling-free transmission are configured through RRC.

For type2 uplink scheduling-free data transmission, the network device (for example, base station) first configures through RRC signaling, and then the network device (for example, base station) schedules the wireless network temporary identifier (configured scheduling radio network temporary identifier, CS- RNTI) scrambled physical downlink control channel (physical downlink control channel, PDCCH) activation signaling activates uplink transmission. Type2 scheduling-free transmission resource period is configured through RRC signaling, specific time-frequency resource configuration, modulation and coding strategy (modulation and coding scheme, MCS) level and multiple-input multiple-output system (multi-input multi-output, MIMO) parameters, etc. Both are indicated in the activation DCI signaling. According to the cycle and offset configured by RRC, the terminal device can directly transmit in the configured transmission cycle after receiving the DCI activation signaling.

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

In wireless transmission, changes in air interface channels can easily lead to bit errors in transmitted signals. In order to solve this problem, the current 3GPP standard adopts the MCS based on the channel state, that is, adjusts the parameters of the MCS according to the channel state. The MCS parameter can be used to adjust the modulation and coding strategy of the transmitted data, and improve the reliability of data transmission at the cost of additional redundant bits. Specifically, when the channel state is poor, network devices (for example, base stations) can use low-order MCS to transmit data, that is, by adding a large number of redundant bits and using low-order modulation, at the cost of reducing system transmission efficiency, ensuring Correct rate of transmitted data transmission. When the channel state is good, network equipment (for example, a base station) can use high-order MCS to transmit signals, that is, use high-order modulation and add a small amount of redundant bits to improve bandwidth efficiency.

The above SPS/CG type1/2 all have the characteristics of one configuration and multiple transmissions, that is, after configuring parameters once, all data transmitted by SPS/CG adopts the configured parameters. If you want to change configuration parameters, RRC reconfiguration or DCI reactivation is required. But reconfiguration or activation will introduce additional delay. Since the DCI format used for reactivation contains a lot of fields (that is, occupies a lot of bits), but only 5 bits are used to indicate the MCS, and the remaining fields are not helpful for changing the MCS, so frequent reactivation seriously increases the overhead of system transmission. It not only affects the capacity of the system, but also increases the power consumption of DCI for blind detection reconfiguration or reactivation of terminal equipment.

Based on this, the present application proposes a method for information transmission, in order to provide reliable transmission of data while reducing detection overhead of detection control information.

The technical solution of the present application will be described in detail below by taking the interaction between the first communication device and the second communication device as an example. Wherein, the first communication device may be the terminal device (such as terminal device 102, terminal device 103 or terminal device 104) in FIG. 1, and the second communication device may be the network device 101 in FIG. 1; optionally, the first communication device The communication device and the second communication device may both be terminal devices, and at this time the communication system supports sidelink communication technology, for example, the first communication device is the terminal device 102 and the second communication device is the terminal device 103 or the terminal device 104, or the first communication device The device is the terminal device 103 and the second communication device is the terminal device 104 or the terminal device 102 or the like.

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

S310. The first communication device receives control information and data from the second communication device, the control information and data are multiplexed on the first physical shared channel, and the control information is used to indicate the first modulation mode of the data and/or the first Encoding.

Wherein, the above data includes semi-statically transmitted data.

Optionally, the first communication device may also receive 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 the first physical shared channel.

Optionally, the first configuration information is also 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.

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

Wherein, the data of the M physical shared channels is processed according to the first modulation mode and/or the first coding mode of the control information.

In this embodiment of the present application, the symbols mapped to the first physical shared channel by the control information do not include symbols carrying a demodulation reference signal (demodulation reference signal, DM-RS) on the first physical shared channel. Among them, the DM-RS symbols are used for channel estimation by the receiving end equipment. The closer to the RE of the DM-RS signal, the more accurate the channel estimation data obtained, so it is usually considered to multiplex the data near the DM-RS symbols.

Wherein, the first physical shared channel includes a first symbol, and the first symbol is the first symbol in the first physical shared channel that does not carry a DM-RS, and the first symbol includes a first resource element (resource element, RE). An RE is a resource unit that does not carry a PT-RS, and the control information is mapped to the first RE on the first symbol according to a first frequency-domain mapping interval, and the first frequency-domain mapping interval is based on the number of first REs on the first symbol and The number of REs to which control information is not mapped is determined.

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

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

Optionally, the first communication device may also receive second configuration information from the second communication device, where the second configuration information is used to indicate the preset time domain density of the phase tracking reference signal PT-RS of the first physical shared channel; when 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, the REs occupied by the PT-RS are skipped, and the REs occupied by the PT-RS are determined according to the preset time domain density.

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

Optionally, the control information is also used to indicate hybrid automatic repeat request (HARQ) information.

Optionally, the first configuration information is also used to indicate that the control information applies to one or more transport blocks TB for semi-static transmission.

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

Wherein, the second modulation method is binary phase shift keying; or, π/2-binary phase shift keying; or, quadrature phase keying modulation; or quadrature amplitude modulation, and the second encoding method is: Reed- Mueller RM code encoding; or, cyclic redundancy check CRC code encoding and RM encoding; or, repetition encoding; or, CRC code encoding and polar code encoding.

Optionally, with the development of technology, the second encoding manner may also include other encoding manners, which are not limited in this application.

S320. The first communications device decodes the data according to the first modulation and/or the first encoding manner.

According to the technical solution of the present application, by multiplexing the data and the control information corresponding to the data in the same physical shared channel, it is helpful to provide reliable transmission of data while reducing the detection overhead of detection control information.

Fig. 4 is a schematic flowchart of a specific example of information transmission in this application.

S410. The second communication device encodes the control information according to the second modulation scheme and/or the second coding scheme.

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

For example, taking the control information as MCS as an example, assuming that its size is 5 bits, as a possible implementation, it can be directly encoded by Reed Muller (reed muller, RM) code to generate a 32-bit control information; as another possible implementation, it can also be encoded with a cyclic redundancy check (CRC) code to generate 11-bit control information, and the 11-bit control information can be passed through the RM again. code to generate 32-bit control information; optionally, it can also be repeatedly encoded, for example, through 3 repeated encodings, to generate 15-bit control information; optionally, it can also be encoded with CRC code Then polar coding is performed. The coded control information can also be modulated by a second modulation method, such as quadrature phase keying modulation.

In the embodiment of the present application, the second communication device further needs to encode the data according to the first modulation mode and/or the first coding mode, so as to obtain the processed data. Wherein, the first modulation method and the first coding method may refer to the prior art, or may be other possible modulation methods and coding methods, which are not limited in this application.

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

Wherein, the control information may include control information processed by the second modulation and/or second coding method, and the data may include data encoded by the first modulation method and/or the first coding method.

Specifically, the control information processed by the second modulation method and/or the second encoding method can be represented as A, and its code length is represented by |A|, using quadrature phase shift keying (quadrature phase shift keying, QPSK) In the encoding mode of , the number of REs required is B=ceil(|A|/2), where ceil represents rounding up. Define the first symbol not bearing DM-RS in the first physical shared channel as the first symbol, define the resource element RE not bearing PT-RS as the first RE, and determine 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 the first REs on the first symbol, set the first frequency-domain mapping interval, for example, set it to 1; when the number B of REs required for mapping control information is less than the number E of the first REs on the first symbol, the first frequency-domain mapping interval d=floor(E/B), where floor represents downward Rounding.

Wherein, when there is no remaining first RE in the first symbol, and there is still part of the control information that has not been mapped, the remaining control information is mapped on the second symbol, and the second symbol is the adjacent uncarried control information of the first symbol. and DM-RS symbols. The determination of the frequency-domain mapping interval is different from the above method in that B is the number of REs that are not mapped to the control information, that is, B is used as an updateable parameter, and the above-mentioned rules are still used to determine the second frequency-domain mapping interval.

It should be understood that the second symbol may include multiple symbols, that is, the second symbol is a general term for a type of symbol, and does not specifically refer to a certain symbol. When the number of REs required by the control information is large, it may also include multiple second symbols. , so that the second frequency domain intervals in each second symbol may be the same or different, which is not limited in this application.

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 this application does not limit it

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 FIG. 11 .

Scenario 1

As shown in Figure 5, taking the downlink transmission of the semi-persistent scheduling SPS as an example, the number of symbols occupied by the physical downlink control channel (PDCCH) is 2, that is, symbol 0 and symbol 1 in Figure 5, the first Physical shared channel, such as physical downlink shared channel (PDSCH), adopts mapping type A mapping method, only one DM-RS, and DM-RS is type1, located on symbol 2, the antenna for transmitting SPS data The port number is 1000, the time-domain resources corresponding to the first physical shared channel are symbols 2-13, and the corresponding frequency-domain resources are 3 resource blocks (resource blocks, RBs), that is, each symbol contains 36 REs, numbered from 0- 35. The illustration does not include PT-RS signals. Assuming that the control information includes 5-bit MCS, the number B of REs required after the second modulation method is quadrature phase modulation and the second coding method is (32, K) Reed-Muller coding is 16. According to the above rules, the symbols occupied by the PDSCH are 2-13, and it can be preliminarily assumed that the first symbol is symbol 2. However, in FIG. 5 , symbol 2 is used to carry a 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 a DM-RS, and no reference signal is mapped on this symbol, so the first RE on this symbol is all REs of this symbol, that is, the number of first REs is 36. By calculation, the number B of REs required for control information is 16, because 16 is less than 36, so it is determined that the first frequency domain mapping interval is d=floor(36/16)=2, that is, on symbol 3, every 2 REs RE needed to map a control message. As shown in Figure 5, the mapping can start from RE number 0 in symbol 3, and the numbers of the MCS control information mapped on symbol 3 of PDSCH are 0, 2, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 28, 30 on RE.

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 manner. Exemplarily, taking FIG. 5 as an example, the second RE is an RE that does not carry control information and DM-RS on symbols 2-13. Because the antenna port number in Figure 5 is 1000, the SPS data is mapped to the first physical shared channel starting from symbol 2 in the order of the frequency domain and then the time domain, that is, the SPS data is first mapped to symbol 2 in the first physical shared channel On REs numbered 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, and then mapped to symbol 3 numbered 1 , 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 32, 33, 34, 35 RE. After that, the unmapped data of the SPS data will be mapped to the first physical shared channel in the order of the frequency domain first and then the time domain, for example, after being mapped to the RE numbered 0-35 of the symbol 4, and then continue to be mapped to the symbol 6 On the REs numbered 0-35, until all the SPS data is mapped. It should be noted that when a high code division multiplexing (CDM) group number or a high antenna port number is used for information transmission, the second RE does not include the DM-RS with a low CDM group number or a low antenna port number. Corresponding RE. For example, if the first physical shared channel in Figure 5 uses the antenna port 1002/1003 to transmit data, then the position where the DM-RS appears is the

number

1, 3, 5, 7, 9, 11, 13, 15 on

symbol

2 , 17, 19, 21, 23, 25, 29, 31, 33, and 35 REs, at this time, the REs occupied by the DM-RS used 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, not used to carry any data. In this scenario, only symbols 3-13 in the first physical shared channel have the second RE, so the SPS data will be multiplexed into the first physical shared channel starting from symbol 3 in the order of first frequency domain and then time domain.

Scenario 2

When the number B of REs required for the control information is large, it may be necessary to map the data of the control information to the second symbol on the first physical shared channel, where the second symbol is the adjacent uncarried control of the first symbol Symbols for information and DM-RS. Taking the parameters of Scenario 1 as the background, as shown in Figure 6, the difference from Figure 5 is that the control information contains 5-bit MCS and the second modulation method is quadrature phase modulation, and the second encoding method is 6-bit CRC and 1 /8 polar code, the number B of REs required for the coded control information is 44. According to the rules 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 number of REs for symbol 3 is 36. And because the first number of REs in symbol 3 is smaller than the number B of REs required for control information, the first frequency interval is 1, that is, each RE on symbol 3 maps one RE required for control information. After symbol 3 is mapped, the number of REs to which the control information is not mapped is 8, so the control information needs to be mapped to the second symbol. According to the rule that the second symbol is an adjacent symbol that does not carry control information and DM-RS of the first symbol, it is determined that the second symbol is symbol 4 in Figure 6, and the number of first REs in symbol 4 is 36, because 8 is less than 36, so it is determined that the second frequency domain mapping interval is d=floor(36/8)=4, that is, on symbol 4, every 4 REs are mapped to an RE required for control information. As shown in Figure 6, the mapping can start from RE number 0, then the numbers of the MCS control information mapped on symbol 4 of the first physical shared channel are 0, 4, 8, 12, 16, 20, 24, 28 on the RE.

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 manner. Taking FIG. 6 as an example, the second RE is an RE that does not carry control information and DM-RS on symbols 2-13. Therefore, starting from symbol 2, the SPS data is mapped to the first physical shared channel in the frequency domain first and then the time domain, and the specific process can refer to scenario 1. It should be noted that when a CDM group number or a high antenna port number is used for information transmission, the second RE does not include REs corresponding to DM-RSs with a low CDM group number or a low antenna port number. For example, if the first physical shared channel in Figure 5 uses antenna port 1002/1003 to transmit data, the 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, at this time, the REs occupied by the DM-RS used 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 to carry any data. In this scenario, only symbols 4-13 in the first physical shared channel in Figure 6 have the second RE, so the SPS data will be multiplexed into the PSCH starting from symbol 4 in the order of frequency domain and then time domain. Exemplarily, the SPS data is first mapped to symbols 4 numbered 1, 2, 3, 5, 6, 7, 9, 10, 11, 13, 14, 15, 17, 18, 19, 21, 22, 23, On the

REs

25, 26, 27, 29, 30, 31, 32, 33, 34, and 35, the unmapped data of the SPS data is further mapped to the second REs of the symbols 5-13, which will not be repeated here.

Scenario 3

In this situation, a scenario in which an additional DM-RS is configured in the first physical shared channel is considered. As shown in Figure 7, taking the downlink transmission of semi-persistent scheduling SPS as an example, the number of symbols occupied by the control channel PDCCH is 2, that is, symbol 0 and symbol 1 in Figure 7, and PDSCH adopts the mapping type A mapping method, there are two DM-RS, located on

symbols

2 and 11, the antenna port number for transmitting SPS data is 1000, the time domain resources corresponding to PDSCH are symbols 2-13, and the corresponding frequency domain resources are 3 RBs, that is, each symbol contains 36 REs, numbered from 0-35, the legend does not include PT-RS signals.

For the convenience of comparison with Case 2, assuming that the control information processed by the second modulation and/or the second coding method needs to occupy 44 REs, a possible mapping method is to determine that the first symbol is the same as the pre-DM- The symbol 3 adjacent to the symbol 2 where the RS is located maps the control information according to the first frequency domain interval equal to 1 RE. After the symbol 3 is mapped, the number of unmapped data of the control information is 8, so the control information also needs to be mapped Mapped onto the second symbol. According to the rule that the second symbol is adjacent to the first symbol that does not carry control information and DM-RS symbols, it is determined that the second symbol is symbol 4 in Figure 6, and the number of first REs in symbol 4 is 36, so it is determined The second frequency-domain mapping interval is d=floor(36/8)=4, that is, on symbol 4, every 4 REs are mapped to an RE required for control information. In another possible mapping method, the number of the first symbol may be multiple, as shown in Figure 7, the first symbol is determined to be the symbol 3 adjacent to the symbol 2 where the pre-DM-RS is located and the The symbol 11 where the DM-RS is located is adjacent to 10 (or 12), and the number of first REs in the symbol 10 (or 12) is 36, so the first frequency domain mapping interval is determined as d=floor(36/8)= 4. That is, on symbol 10 (or 12), every 4 REs are mapped to an RE required for control information, so that the REs required for control information can be divided into 1 RE and the 1st frequency domain mapping interval according to the first frequency domain. A frequency domain mapping interval is 4 REs are mapped to symbol 3 and symbol 10 (or 12).

Optionally, the symbol sequence of the symbols that control information is mapped to the first physical shared channel may also be determined according to the symbol sequence information. For example, to improve decoding reliability, one or more symbols carrying DM-RS may be adjacent to each other according to the symbol sequence (for example, the symbols are sorted as 3, 10, 12, 4, 5, 6, 7, 8, 9, 13), and for example, in order to reduce the decoding delay, they can be sorted in order (for example, the symbols The sequence is 3, 4, 5, 6, 7, 8, 9, 10, 12, 13), which is not limited in this application. For example, when the symbols are sorted as 3, 10, 12, 4, 5, 6, 7, 8, 9, 13, and the symbols where the DM-RS is located are

symbols

2 and 11,

symbols

3, 10, and 12 are the first Symbols,

symbols

4, 5, 6, 7, 8, 9, and 13 are the second symbols, and the control information is first mapped to symbol 3 with the first frequency domain mapping interval as 1 RE. If there is control information, there is still unmapped data, the data that is not mapped to the control information is continuously mapped to symbols 10 according to the first frequency domain mapping interval. After the mapping of the control information to the symbol 10 is completed, if there is unmapped data in the control information, continue to map the unmapped data of the control information to the symbol 12 until all the control information is mapped to the first physical shared channel.

Situation 4

In this situation, a scenario in which the PT-RS is included in the first physical shared channel is considered. When PT-RS is configured in the first physical shared channel, it is necessary to first determine the distribution of PT-RS, that is, first determine the time-domain density and frequency-domain density of PT-RS, where the frequency-domain density of PT-RS is related to the allocated RB Quantity related, while the time domain density of PT-RS is determined according to MCS.

In some embodiments, when the first physical shared channel contains PT-RS, it is necessary to first determine the distribution of PT-RS, that is, first determine the time domain density of PT-RS and the resource block RB allocated to the corresponding physical shared channel. quantity. Table 1 shows the relationship between the time-domain density of the PT-RS and the MCS parameters, and Table 2 shows the relationship between the frequency-domain density and the bandwidth of the PT-RS.

Table 1 Relationship table between time domain density of PT-RS and MCS parameters

Table 2 Relationship between frequency domain density and bandwidth of PT-RS

Among them, ptrs-MCS1 to ptrs-MCS4 and N _RB0 and N _RB1 in the table are configured by the sending end through RRC signaling (for example, time domain density timeDensity and frequency domain density freqnecyDensity parameters in PT-RS downlink configuration ptrs-downlinkConfig), The unit of the time-domain density is symbol, when the time-domain density is 2, it means that every 2 symbols in the time domain are mapped to a PT-RS symbol; the unit of the frequency-domain density is symbol, when the frequency-domain density is 4, it means A PT-RS symbol is mapped every 4 RBs in the time domain. Among them, some fields of PT-RS configuration can be as follows:

Specifically, the second configuration information includes or itself is the above-mentioned PT-RS downlink configuration ptrs-downlinkConfig, and the present application may add a new field timeDensitypreset in the field, which is used to indicate the time domain density of the PT-RS symbol, and the sending end device (ie The second communication device) sends the second configuration information to the receiving end device (that is, the first communication device), and the receiving end device can determine the PT-RS according to the time domain density timeDensitypreset parameter and the frequency domain density freqnecyDensity parameter in the first configuration information The time domain interval and the frequency domain interval of symbols are used to quickly and accurately determine the position distribution of PT-RS symbols.

The starting RB where the PT-RS symbol is located

Determined according to the following formula (1):

Wherein, n _RNTI represents the RNTI scrambled when the DCI schedules data, and N _RB represents the total number of RBs corresponding to the physical shared channel resources.

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

where i={0,1,2,...},

Indicates the number of subcarriers in one RB.

The value of k ^RE _ref is shown in Table 3:

table 3

value range table

Wherein, the offset 00 to the offset 11 are determined according to the RRC signaling (for example, the ResourceElementOffset in the PT-RS downlink configuration ptrs-downlinkConfig).

In this application, the number of RBs for semi-persistent scheduling is indicated by the activation control information, so it can be considered as a known parameter, and since the MCS of each SPS transmission is indicated by the control information in the first physical shared channel, the MCS It is an unknown parameter for the first communication device (receiving end). If the above technology is continued to be used, the first communication device (receiving end) will not be able to parse the PT-RS.

Therefore, in this situation, in the embodiment of the present application, the second communication device (transmitter) can determine the distribution of PT-RS on the first physical shared channel according to the preset time domain density of PT-RS, and use the preset It is assumed that the time domain density is sent to the first communication device (receiving end), which can ensure that the first communication device (receiving end) parses the PT-RS normally.

S430. The second communication device determines a 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 through the second configuration information. And determine 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.

In this way, the first communication device can determine the position of the PT-RS according to the preset time domain density of the PT-RS, so as to correctly resolve the PT-RS.

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

In the embodiment of this application, taking the downlink transmission of semi-persistent scheduling SPS as an example, the physical shared channel includes 3 RBs in total, the corresponding subcarrier numbers are 0 to 35, the symbols occupied by PDCCH are 0 and 1, and the physical shared channel occupies The symbols are 2 to 13, the frequency domain density K _PT-RS = 2, the time domain density L _PT-RS = 2, the offset 00 is used, the DM-RS port number is 0, and the DM-RS configuration type is 1, so determine The starting resource unit in the RB where the PT-RS is located

If n _RNTI =0, determine the starting RB of the PT-RS according to formula (1)

is 0.

Therefore, as shown in FIG. 8 , it can be determined that the PT-RS is located on the 0th subcarrier on the 0th and the second RB, that is, on the 0th and the 24th subcarrier respectively. In addition, because the time-domain density L _PT-RS =2, that is, on the 0th and 24th subcarriers, starting from the RE of the first available PDSCH symbol, every 2 symbols are mapped to a PT-RS symbol.

In this application, the PT-RS is distributed on REs numbered 0 and 24 on

symbols

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

Assume that the second modulation mode is quadrature phase modulation, the second encoding mode is 6-bit CRC and 1/8 polar code, and the coded control information requires 44 REs. According to the above rules, it is determined that the first symbol is symbol 3, and according to the distribution of the above-mentioned PT-RS time domain density and frequency domain density, it can be determined that no PT-RS reference signal is mapped on symbol 3, so it is determined that the first symbol on symbol 3 The number of one RE is 36. According to the method described in Scenario 1, the first frequency-domain mapping interval is determined to be 1, that is, on symbol 3, every other RE is mapped to an RE required for control information. After symbol 3 is mapped, the number of REs to which the control information is not mapped is 8. According to the rule that the second symbol is adjacent to the first symbol that does not carry control information and DM-RS symbols, it can be determined that the second symbol is the first Symbol 4 in the physical shared channel. Since two PT-RS signals are mapped on symbol 4, the number of first REs on symbol 4 is 34. Since 8 is less than 34, it is determined that the second frequency-domain mapping interval is d=floor(34/8)=4, that is, on symbol 4, every 4 REs are mapped to an RE required for control information. Because the RE numbered 0 is occupied by the PT-RS, the REs to which the control information is mapped can start to be mapped from the REs numbered 1, and the numbers of the MCS control information mapped on the symbol 4 of the PDSCH are 1, 5, 9, 13, 17, 21, 25, 29 on RE.

It should be noted that when the control information is mapped in the above manner, the mapped RE may overlap with the RE occupied by the PT-RS, and at this time the RE mapped by the control information may skip the RE. For example, on the above-mentioned RE numbered 0, the control information overlaps with the PT-RS. Therefore, during mapping, the control information can be mapped from the RE numbered 1. At this time, the RE mapped to the control information can be shifted backward by 1 as a whole. RE, the control information is mapped on the REs numbered 1, 5, 9, 13, 17, 21, 25, and 29 on the symbol 4 of the first physical shared channel in Figure 8; or, the control overlapped with the PT-RS Information can be deferred to be mapped by one RE, without affecting the mapping positions of other REs of control information. Exemplarily, as shown in FIG. 8, the control information can be mapped from the RE numbered 1. At this time, the position of the RE mapped by the control information that does not overlap with the RE occupied by the PT-RS remains unchanged. For example, the control information is mapped in The numbers on symbol 4 of the first physical shared channel are 1, 4, 8, 12, 16, 20, 25 (because there is a PT-RS on number 24, so it is shifted backward by 1 RE), and 28 REs.

In addition, when the number of REs required by the control information exceeds the first number of REs on the symbol, the control information is mapped to the next symbol, such as symbol 5, according to the above rule.

Scenario 5

In the current NR standard, an SPS can only schedule one physical shared channel to transmit SPS data at a time (also called a time slot or a transmission block TB, that is, a physical shared channel can also be expressed as a time slot or a TB, for convenience description, this application uniformly adopts the physical shared channel for introduction), but because the size of one XR video frame is relatively large, it is usually necessary to schedule multiple SPSs at the same time to be able to transmit one XR video frame. Based on this, in the embodiment of the present application, it is considered to apply the control information to multiple SPSs for information transmission.

In the embodiment of the present application, a plurality of SPSs can be set to have an association relationship, for example, in the bandwidth part (bandwidth part, BWP) downlink dedicated information BWP-DownlinkDedicatedinformation element, add the SPS configuration addition modification list indicator sps-configToAddModListFlag, use It is used to instruct the SPS configuration to add the SPS relationship in the modification list sps-configToAddModList. For example, when the SPS configuration addition modification list indication flag sps-configToAddModListFlag takes the first value, such as '1', the SPS configuration addition modification list sps-configToAddModList is associated with multiple SPS processes, otherwise when the SPS configuration addition modification When the list indication flag sps-configToAddModListFlag takes the second value, such as '0', there is no association. If the SPS configuration addition modification list sps-configToAddModList is related to the SPS, then the SPS configuration addition modification list sps-configToAddModList adds the control information in the first physical shared channel of any SPS to the SPS configuration addition modification list sps-configToAddModList The data transmitted by all relevant SPS in the . Exemplarily, the SPS configuration adding modification list indication flag sps-configToAddModListFlag (bold and italic) in some fields of the BWP configuration may be as follows:

Specifically, the first configuration information includes the above bandwidth part downlink dedicated information BWP-DownlinkDedicatedinformation element, and the present application may add a field sps-configToAddModListFlag-r18 (bold and italic) in the field to indicate that the SPS configuration adds a modification list sps- SPS association in configToAddModList. For other parameters in the first configuration information, reference may be made to the technical specification (technical specification, TS) 38.331 protocol in the current 3rd ^Generation Partnership Project (3rd Partnership Project, 3GPP) standard. The sending end device (that is, the second communication device) sends the first configuration information to the receiving end device (that is, the first communication device), and the receiving end device can determine the SPS configuration addition modification according to the sps-configToAddModListFlag parameter in the first configuration information The SPSs in the list sps-configToAddModList are related. By setting the relationship between multiple SPSs in the list, the control information can be applied to multiple SPSs in the list at the same time, which helps to save signaling overhead and reduce equipment energy consumption.

As shown in Figure 9, in time division duplexing, the time slot ratio of every 10 time slots includes 8 downlink time slots (downlink, DL) and 2 uplink time slots (uplink, UL), the subcarrier spacing (subcarrier When spacing, SCS) is 15kHz, it is assumed that RRC configures 4 SPSs to transmit XR video services, and the transmission period of each SPS is 10ms. At this point, the four SPSs may be set in an association relationship. For example, when the SPS configuration add modification list indication flag sps-configToAddModListFlag is set to take the first value, that is, the four SPSs are related, at this time, the SPS configuration addition modification list sps-configToAddModList can be indicated in the sps-configToAddModList with the lowest value The first physical shared channel is transmitted in the SPS process. Exemplarily, if the SPS configuration addition modification list sps-configToAddModList contains 4 SPSs, which are corresponding to SPS-config Index0-3 (SPS 0-3 for short), as shown in Figure 9 (the legend does not include PT-RS signals ), indicating that the SPS with the lowest sps-config Index is used to transmit the first physical shared channel, that is, the physical shared channel corresponding to SPS0, and the control information of the first physical shared channel adds a modification list sps-configToAddModList to the SPS configuration All SPSs in , that is, SPS0-3, the physical shared channel transmitted is valid. It should be understood that when the SPS configuration addition modification list indication flag sps-configToAddModListFlag takes the first value, it may also indicate that SPSs of other sps-config Indexes are used to transmit the first physical shared channel, which is not limited in this application.

Scenario 6

In this situation, a scenario in which control information is applied to N physical shared channels of one SPS for information transmission is considered.

In this embodiment of the present application, indication information may be added to the first configuration information, which is used to indicate the number of physical shared channels to which the control information applies. Wherein, these physical shared channels may be adjacent physical shared channels, or may be non-adjacent physical shared channels. One possible manner is to add an nrofSlot indicator of the number of timeslots in the SPS-config signaling of the SPS configuration, and its value can be 2-8, etc., which is used to indicate the number of physical shared channels scheduled by the SPS. At this time, the nrofSlot indicator (bold and italic) can be shown as follows in some fields of SPS configuration:

Specifically, the first configuration information includes or itself configures the SPS-config signaling for the above-mentioned SPS, and the present application may add a physical shared channel number indication information field nrofSlot in the field, which is used to indicate the number of physical shared channels scheduled by the SPS, That is, the number of physical shared channels transmitted by each SPS transmission opportunity. For other parameters in the first configuration information, reference may be made to the TS38.331 protocol in the current 3GPP standard. The sending end device (that is, the second communication device) sends the first configuration information to the receiving end device (that is, the first communication device), and the receiving end device can determine the physical location where the control information can be applied according to the nrofSlot parameter in the first configuration information. The number of shared channels, through this method, the receiving end device can know the number of physical shared channels to be received by each SPS transmission opportunity, which helps to improve the flexibility of transmission.

Exemplarily, as shown in Figure 10 (the legend does not include PT-RS signals), suppose that in the case of nrofSlot=4, the SPS transmission starting at D05 should have transmitted data at D05-U00, but U00 is uplink data , so the non-adjacent time slots are D05-D07 and D10. Or, suppose that in the case of nrofSlot=4, as shown in Figure 10 (the legend does not include PT-RS signals), the SPS transmission starting from D05 should have transmitted data at D05-U00, but because U00 is used to carry uplink data, so the SPS transmission time slot is D05-D07, that is, due to the conflict between the SPS transmission time slot and the uplink time slot, the time slot that SPS transmission should have been transmitted in U00 is no longer used for SPS data transmission, and SPS will no longer delay or compensate for this SPS transmission time slot.

Optionally, the control information can be added to the signaling carried by the PDSCH, for example, the independent control selfContainedControlIE signaling is added to the sps-config in the RRC signaling. When the signaling is empty, the The mapping method is not turned on. Alternatively, the independent control selfContainedControlIE signaling may include one or more configuration information, such as MCS, nrofTB and other configuration information. At this time, the independent control selfContainedControlIE signaling (bold and italic) can be configured in some fields of the SPS as follows:

Specifically, the first configuration information includes or itself configures the SPS-config signaling for the above-mentioned SPS, and the present application may add a field selfContainedControlIE to indicate that the corresponding SPS contains the first physical shared channel. Furthermore, the field MCS can be added to indicate whether the control information in the first physical shared channel contains the first modulation scheme and/or the first coding scheme, and the field nrofTB can be added to indicate that the control information in the first physical shared channel Whether the control information of the control information includes the indication information of the number of physical shared channels. It should be noted that at this time, the size of the nrofTB field is a pre-configured parameter known by the sending end and the receiving end device. 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 to be transmitted for 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 (that is, the second communication device) sends the first configuration information to the receiving end device (that is, the first communication device), and the receiving end device can determine the configuration information in the first physical shared channel according to the selfContainedControlIE parameter in the first configuration information. The content of the control information, and according to the MCS parameter in the control information, determine the first modulation method and/or the first coding method of the data in the physical shared channel of SPS transmission, and determine each SPS transmission opportunity according to the nrofTB parameter in the control information The number of physical shared channels transmitted. For other parameters in the first configuration information, reference may be made to the TS38.331 protocol in the current 3GPP standard. Through this method, the receiving end device can accurately and efficiently identify whether the method is valid or not. Carrying the control information in the first configuration information helps to reduce communication delay and save signaling overhead.

Exemplarily, selfContainedControlIE indicates two parameters of MCS and nrofTB. This application does not limit the specific content indicated by the selfContainedControlIE.

Exemplarily, the indication information may be multiplexed into the first physical shared channel of each SPS transmission, and used to indicate that the control information will take effect on this or the next multiple SPS data.

Specifically, by adding nrofTBs signaling to the first configuration information, one SPS can transmit multiple physical shared channels each time. For example, when nrofTBs=n4, that is, N=4, one SPS can transmit 4 physical shared channels each time. Figure 10 (the illustration does not include PT-RS signals) shows a scenario where one SPS transmits four physical shared channels when the SCS is 15kHz and the SPS transmission period is 10ms, where D00-D03 is an SPS transmission opportunity, and D10- D13 is an adjacent next SPS transmission opportunity. Wherein, each transmission opportunity includes one first physical shared channel and three physical shared channels. Exemplarily, in order to reduce the decoding delay, the first TB of each SPS transmission can be used to carry the first physical shared channel, and the control information in the first physical shared channel will take effect for the SPS data of this time, that is, D00 The control information in the first physical shared channel, such as MCS, can be used to decode the SPS data in D00-D03. The data on D00, D01, D02 and D03 take effect.

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

For example, the control information can be applied to multiple physical shared channels of multiple SPSs. At this time, the multiple physical shared channels can be adjacent physical shared channels, as shown in FIG. 11 (the illustration does not include PT-RS signals) , the SPS configuration addition modification list sps-configToAddModList includes SPS0 and SPS1, and nrofTBs=n2 in the configurations of SPS0 and SPS1. D00 and D01 are the data of one transmission opportunity of SPS0, D10 and D11 are the data of the next adjacent transmission opportunity of SPS0, D02 and D03 are the data of one transmission opportunity of SPS1, and D12 and D13 are the data of the next adjacent transmission opportunity of SPS1. Exemplarily, the SPS process indicated in the SPS configuration addition modification list sps-configToAddModList with the lowest sps-config Index bears a first physical shared channel, such as D00. Wherein, 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 SPS1. It should be understood that when the SPS configuration addition modification list indication flag sps-configToAddModListFlag takes the first value, it may also indicate that SPSs of other sps-config Indexes are used to transmit the first physical shared channel, which is not limited in this application.

It should be noted that the period of the first physical shared channel in scenarios 1-6 is the same as the period of one or more SPSs. That is, each transmission of one or more SPSs carries a first physical shared channel, and the control information of the first physical shared channel, such as MCS, can be used for each of one or more SPS transmission opportunities.

For example, the control information can also be applied to M physical shared channels of one or more SPSs. At this time, the M physical shared channels can be non-adjacent physical shared channels. For example, the M physical shared channels are one or more physical shared channels of the SPS. Integer multiples of N physical shared channels in one transmission cycle, that is, M is an integer multiple of N, at this time the control information is applied to M/N transmission cycles of one or more SPSs. As shown in FIG. 10 , one SPS transmits N=4 physical shared channels, wherein D00 to D03 are the data of one transmission opportunity of SPS0, and D10 to D13 are the data of the next adjacent transmission opportunity of SPS0. When M=8, assuming that the first physical shared channel is located at time D00, the control information carried by the first physical shared channel can take effect for D00 to D03 of the SPSO transmission period and D10 to D13 of the next adjacent transmission period of SPSO. Specifically, one implementation is to carry a period parameter (for example, sps-selfContainedControlIEPeriod in SPS-config) in the first configuration information. For example, the period parameter is 2, which means that the control information is valid for two transmissions including this transmission. The information transmission of the transmission cycle takes effect; another possible implementation is to configure the number of times of validity in the first configuration information, for example, the number of times of validity is 2, which means that the control information of the first physical shared channel appears once every 2 SPS transmission opportunities. At this time, the period parameter sps-selfContainedControlIEPeriod (bold and italic) can be shown as follows in some fields of SPS configuration:

Specifically, the first configuration information includes or itself configures SPS-config signaling for the above-mentioned SPS. The present application may add a field sps-selfContainedControlIEPeriod to the field to indicate the number of transmission periods for which the control information takes effect, which can also be understood as Periodic interval at which the first physical shared channel occurs. For other parameters in the first configuration information, reference may be made to the TS38.331 protocol in the current 3GPP standard. The sending end device (that is, the second communication device) sends the first configuration information to the receiving end device (that is, the first communication device), and the receiving end device can determine the period when the control information takes effect according to the sps-selfContainedControlIEPeriod parameter in the first configuration information. The number of transmission cycles, that is, the control information takes effect on the physical shared channel of the next several transmission cycles. Through this method, the receiver device can identify the number of transmission cycles for which the control information takes effect. Further, the control information and the number of transmission cycles for which the control information is applied are carried in the first configuration information at the same time, which helps to improve Transport flexibility.

Exemplarily, sps-selfContainedControlIEPeriod indicates four parameters n1 to n4, and the present application does not limit the value and number of parameters indicated by sps-selfContainedControlIEPeriod. Alternatively, the sps-selfContainedControlIEPeriod can also be put into the independent control selfContainedControlIE signaling, as follows:

S450. The first communication device receives control information and data from the second communication device, the control information and data are multiplexed on the first physical shared channel, and the control information is used to indicate the first modulation mode of the data and/or the first Encoding.

This application does not limit the sequence of mapping control information and data. For example, the control information can be mapped first, and then the data can be mapped. At this time, the data is mapped to the second RE of the first physical shared channel, and the second RE It is a resource unit not carrying control information, DM-RS and PT-RS in the first physical shared channel. For another example, the mapping of data can be completed first, and then the mapping of control information can be performed, that is, the control information can be mapped to the resources of the physical shared channel in a "punching" manner. At this time, the control information may replace part of the data. Specifically, the rate matching method is first used to map the SPS data to the second RE of the first physical shared channel in the order of the frequency domain first and then the time domain. The second RE is that the first physical shared channel does not carry control information, Resource elements of DM-RS and PT-RS. It should be noted that the second RE also needs to consider the influence of the CDM group and the antenna port number. Then map the control information to the first RE of the physical channel. 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, so the control information is mapped on the first RE. In the process of RE, the data mapped on the same RE may be replaced. For example, the above-mentioned Figure 5 can also be understood as that the SPS data starts from symbol 2 in the first physical shared channel and is mapped to multiple symbols of the PDSCH in the order of the frequency domain and then the time domain. After the SPS data mapping is completed, the bearer The first symbol of the control information is symbol 3, and the first frequency-domain mapping interval is d=floor(36/16)=2, that is, on symbol 3, every 2 REs are mapped to an RE required for the control information, then The final result is that the control information is mapped to the

RE numbers

0, 2, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 28, 30 on the symbol 3 of the first physical shared channel RE, and replace the data on these REs.

In this application, "indicate" may indicate explicitly and/or implicitly. Exemplarily, an implicit indication may be based on the location and/or resources used for transmission; an explicit indication may be based on one or more parameters, and/or one or more indices, and/or one or more bit pattern. In addition, "indicate" may also mean "include", for example, the information indicating the modulation mode and/or coding mode of semi-static transmission in the control information may also be expressed as: the control information includes the modulation mode and/or coding mode of semi-static transmission Information.

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 the first physical shared channel.

Wherein, the first configuration information is also used to configure N physical shared channels for semi-static transmission, and the N physical shared channels include the first physical shared channel. For example, the N physical shared channels may correspond to the physical shared channel of the above-mentioned one SPS, that is, the cycle of the control information is the same as the cycle of the SPS.

In another implementation, the period of the control information is different from the period of the SPS. For example, the first configuration information is also used to indicate that the control information is applied to the M physical shared channels corresponding to the semi-statically transmitted data, and M is a positive integer of N. times, that is, the control information is applied to the number of cycles of the SPS. For example, as shown in FIG. 11 , the transmission period of one SPS is 10 ms, and includes N=4 physical shared channels. Wherein, D00 contains the first physical shared channel, and the control information of the first physical shared channel takes effect for M=8 physical shared channels, or in other words, the transmission period of the control information is twice the SPS transmission period, that is, 20ms. The M physical shared channels may correspond to the physical shared channels of two transmission periods of one SPS. Wherein, the data of the M physical shared channels is processed according to the first modulation and/or first coding manner of the control information.

Optionally, the first configuration information is further used to indicate symbol ordering information of symbols that control information is mapped to the first physical shared channel. For example, the symbol ordering information corresponds to the symbol order in Case 3 above. Wherein, the symbol sorting information is sorted according to the manner or sequence of one or more DM-RSs adjacent to each other.

Optionally, the first configuration information is also used to indicate that the control information is applied to one or more TBs for semi-static transmission. The number of terabytes used to control information. Wherein, these transport blocks may be adjacent transport blocks or non-adjacent transport blocks.

Wherein, the first configuration information is also used to indicate the second modulation mode and/or the second coding mode of the control information. In this way, the first communication device may decode the control information according to the second modulation mode and/or the second coding mode 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 mode.

It should be noted that the above solution introduces the solution of the present application by taking the SPS scenario as an example, but it should not limit the application scenario of the present application in any way.

For example, the technical solution of the present application can also be applied to the initial transmission and retransmission scenarios of the dynamic scheduling scenario. Take the downlink scenario as an example, the first configuration information can be added to the PDSCH configuration PDSCH-CONFIG (for example, independently control the selfContainedControlIE signaling ), the first configuration information may also include a plurality of configuration information, such as MCS, HARQ process identification ID and other configuration information. If the first configuration information is configured, the control information can be mapped to the first physical shared channel PDSCH resource corresponding to the DCI according to the above method, and the receiving end ignores the control information contained in the DCI when decoding the DCI, or the DCI does not include The configuration information included in the first configuration information is included, but the control information is obtained from the PDSCH. Specifically, after concatenating information such as MCS and HARQ process ID in a prescribed order (for example, first MCS and then HARQ ID), add CRC code and channel coding, and then map to PDSCH resources according to the above method. At this time, the independent control selfContainedControlI signaling (bold and italic) can be configured in some fields of the PDSCH as follows:

Specifically, the first configuration information includes or itself configures SPS-config signaling for the above-mentioned SPS. The first configuration information of this application is added to the selfContainedControlIE field, and a field MCS is added to this field to indicate the first physical shared channel Whether the control information in the first physical shared channel contains the first modulation method and/or the first coding method; the field HARQ-ProcessesID can also be added to indicate whether the control information in the first physical shared channel contains HARQ process information; the field new A data indicator (new data indicator, NDI) is used to indicate whether the control information in the first physical shared channel contains NDI information, and a field redundancy version (redundancy versiong, RV) is added to indicate that the first physical shared channel Whether the control information in the channel contains RV information. It should be understood that the bit size of the above field is known in the 3GPP standard, and both the sending end and the receiving end device already know the bit size of each field above. Taking the current 3GPP release16 as an example, the MCS field is composed of 5 bits, and the HARQ-processID is composed of 4 bits. The size of the information field may be updated as the 3GPP version changes. For other parameters in the first configuration information, reference may be made to the TS38.331 protocol in the current 3GPP standard. The sending end device (that is, the second communication device) sends the first configuration information to the receiving end device (that is, the first communication device), and the receiving end device can determine according to the first configuration information that the control information included in the first physical shared channel content, thereby determining the MCS parameter, HARQ-ProcessesID parameter, NDI parameter or RV parameter of the SPS data. Further, carrying multiple pieces of control information about the data of the same physical shared channel in the first configuration information at the same time helps to reduce communication delay and save signaling overhead.

For another example, the technical solution of the present application can also be applied to the retransmission scenario, and the first configuration information can be added to the PDSCH-Config (for example, the retransmission independent control RetransmissionSelfContainedControlIE signaling), and the first configuration information can include multiple configurations Information, such as MCS, HARQ process ID and other configuration information. If the first configuration information is configured, the control signaling can be mapped to the PDSCH resource corresponding to the DCI according to the above method, and the receiving end can ignore the control information contained in the DCI when decoding the DCI, but obtain the control information from the PDSCH . Specifically, after concatenating information such as MCS and HARQ process ID in a prescribed order (for example, first MCS and then HARQ ID), add CRC code and channel coding, and then map to PDSCH resources according to the above method. Or, when the receiving end knows the specific location of the retransmission moment, it can choose not to decode the DCI, but to receive the PDSCH data of the corresponding time slot, and decode the above-mentioned control information from it.

In addition, the technical solution of the present application can also be applied to the SPS retransmission scenario, and the specific mapping method can refer to the introduction in the above SPS scenario. The retransmission independent control retransmissionSelfContainedControlIE signaling can be added to SPS-Config (ie, first configuration information), and the first configuration information can include multiple configuration information, such as MCS, HARQ process ID and other configuration information. If the first configuration information is configured, the control signaling can be mapped to the PDSCH resource corresponding to the DCI according to the above method, and the receiving end can ignore the control information contained in the DCI when decoding the DCI, but obtain the control information from the PDSCH . Specifically, after concatenating information such as MCS and HARQ process ID in a prescribed order (for example, first MCS and then HARQ ID), add CRC code and channel coding, and then map to PDSCH resources according to the above method. Alternatively, when the receiving end knows the specific location of the retransmission moment, it may choose not to decode the DCI, but to receive the PDSCH data of the corresponding time slot, and decode the above-mentioned control information therefrom. Exemplarily, some fields of the SPS configuration in the retransmission self-contained control IE signaling (bold and italic) may be as follows:

Specifically, the first configuration information includes or itself configures the SPS-config signaling for the above-mentioned SPS, and the present application may add a field retransmissionSelfContainedControlIE in the field to indicate that the method can be applied to a retransmission scenario. Further, the MCS parameter, the HARQ-ProcessesID parameter, the NDI parameter or the RV parameter may be added to the retransmissionSelfContainedControlIE as described above. For the meanings corresponding to each parameter, please refer to the above description. For the sake of brevity, details are not repeated here. For other parameters in the first configuration information, reference may be made to the TS38.331 protocol in the current 3GPP standard. The sending end device (that is, the second communication device) sends the first configuration information to the receiving end device (that is, the first communication device), and the receiving end device can apply the technical solution to the retransmissionSelfContainedControlIE parameter in the first configuration information. Pass the scene. Specifically, after the retransmissionSelfContainedControlIE field is configured and the receiving end device determines that the currently received data is retransmission data, it can decode the MCS parameter, HARQ-ProcessesID parameter, NDI parameter or RV parameter of the control information in the first physical shared channel, The information indicated by the corresponding parameter is acquired so as to decode the data in the first physical shared channel. Simultaneously carrying multiple pieces of control information about the data of the same physical shared channel in the first configuration information helps to reduce communication delay and save signaling overhead.

The technical solutions provided in this application can also be applied to sidelink (sidelink) transmission. Specifically, the semi-static transmission of sidelink transmission may include CG transmission and SPS transmission. For CG transmission and SPS transmission, please refer to the introduction of uplink transmission (that is, CG transmission) and downlink transmission (that is, SPS transmission) introduced above. Here No longer.

Optionally, in sidelink transmission, the above-mentioned first physical shared channel may specifically be a physical sidelink control channel (physical sidelink control channel, PSCCH), and the control information in the first physical shared channel may be sidelink control information ( sidelink control information (SCI), such as MCS, or any combination of multiple control signalings, such as MCS and HARQ. Wherein, the flow of the above-mentioned method in the sidelink transmission is basically similar to the flow of the downlink transmission introduced in the present application, and those skilled in the art can know how to design the flow of the sidelink transmission according to the example of the downlink transmission in the present application (the flow of the method 400), I won't go into details here.

It should be understood that the sequence numbers of the above processes do not mean the order of execution, and the execution order of each process should be determined by its functions and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application.

It should also be understood that in each embodiment of the present application, if there is no special explanation and logical conflict, the terms and/or descriptions between different embodiments are consistent and can be referred to each other, and the technical features in different embodiments New embodiments can be formed by combining them according to their inherent logical relationships.

It can be understood that, in the foregoing embodiments of the present application, the method implemented by the communication device may also be implemented by a component (such as a chip or a circuit) that can be configured inside the communication device.

Hereinafter, the information transmission device provided by the embodiment of the present application will be described in detail with reference to FIG. 12 and FIG. 13 . It should be understood that the descriptions of the device embodiments correspond to the descriptions of the method embodiments. Therefore, for content that is not described in detail, reference may be made to the method embodiments above. For brevity, some content will not be repeated here.

The embodiment of the present application can divide the functional modules of the transmitting end device or the receiving end device according to the above method example, for example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module middle. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules. It should be noted that the division of modules in the embodiment of the present application is schematic, and is only a logical function division, and there may be other division methods in actual implementation. In the following, description will be made by taking the division of each functional module corresponding to each function as an example.

Fig. 12 is a schematic block diagram of an example of an information transmission device 1200 provided in this application. Any device involved in any of the methods 300 and 400 above, such as the first communication device and the second communication device, etc., can be implemented by the information transmission device shown in FIG. 12 .

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

As shown in FIG. 12 , the information transmission device 1200 includes: one or more processors 1210 . Optionally, the processor 1210 may call an interface to implement receiving and sending functions. The interface may be a logical interface or a physical interface, which is not limited. For example, the interface may be a transceiver circuit, an input-output interface, or an interface circuit. The transceiver circuits, input and output interfaces or interface circuits for realizing the functions of receiving and sending can be separated or integrated together. The above-mentioned transceiver circuit or interface circuit can be used for reading and writing code/data, or the above-mentioned transceiver circuit or interface circuit can be used for signal transmission or transfer.

Optionally, the interface can be implemented through a transceiver. Optionally, the information transmission device 1200 may further include a transceiver 1230 . The transceiver 1230 may also be called a transceiver unit, a transceiver, a transceiver circuit, etc., and is used to realize a transceiver function.

Optionally, the information transmission device 1200 may further include a memory 1220 . The embodiment of the present application does not specifically limit the specific deployment location of the memory 1220, and the memory may be integrated in the processor or independent of the processor. For the situation that the information transmission apparatus 1200 does not include a memory, it is sufficient that the information transmission device 1200 has a processing function, and the memory can be deployed in other locations (eg, a cloud system).

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

It can be understood that, although not shown, the information transmission device 1200 may also include other devices, such as an input device, an output device, a battery, and the like.

Optionally, in some embodiments, the memory 1220 may store execution instructions for executing the methods of the embodiments of the present application. The processor 1210 can execute the instructions stored in the memory 1220 in conjunction with other hardware (such as the transceiver 1230 ) to complete the steps of the method shown below. For the specific working process and beneficial effects, please refer to the description in the method embodiments above.

The methods disclosed in the embodiments of the present application may be applied to the processor 1210 or implemented by the processor 1210 . The processor 1210 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the method can be completed by an integrated logic circuit of hardware in a processor or an instruction in the form of software. The above-mentioned processor can be a general-purpose processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (application specific integrated circuit, ASIC), an off-the-shelf programmable gate array (field programmable gate array, FPGA) or other available Program logic devices, discrete gate or transistor logic devices, discrete hardware components. Various methods, steps, and logic block diagrams disclosed in the embodiments of the present application may be implemented or executed. 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 module can be located in random access memory (random access memory, RAM), flash memory, read-only memory (read-only memory, ROM), programmable read-only memory or electrically erasable programmable memory, registers, etc. in the storage medium. The storage medium is located in the memory, and the processor reads the instructions in the memory, and completes the steps of the above method in combination with its hardware.

It will be appreciated that memory 1220 can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. Among them, the non-volatile memory can be read-only memory ROM, programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically erasable programmable read-only memory (electrically EPROM, EEPROM) or flash memory. Volatile memory can be random access memory RAM, which acts as external cache memory. By way of illustration and not limitation, many forms of RAM are available such as static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (synchlink DRAM, SLDRAM ) and direct memory bus random access memory (direct rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but not be limited to, these and any other suitable types of memory.

Fig. 13 is a schematic block diagram of an information transmission device 1300 provided in this application.

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

Specifically, the information transmission apparatus 1300 may be any device involved in this application, and may implement functions that the device can implement. It should be understood that the information transmission apparatus 1300 may be a physical device, or a component of a physical device (for example, an integrated circuit, a chip, etc.), or a functional module in a physical device.

In a possible design, the information transmission device 1300 may be the first communication device in the above method embodiment, or may be a chip for realizing the function of the first communication device in the above method embodiment.

As an example, the communication device is used to perform the actions performed by the first communication device in FIG. 4 above, the transceiver unit 1320 is used to perform S440, S450, and S460, and the processing unit 1310 is used to perform S470.

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

A processing unit, configured to process data according to the first modulation and/or the first encoding method.

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 the 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 the phase tracking reference signal PT-RS of the first physical shared channel.

It should also be understood that when the information transmission device 1300 is the first communication device, the transceiver unit 1320 in the information transmission device 1300 can be implemented through a communication interface (such as a transceiver or an input/output interface), and the processing in the information transmission device 1300 Unit 1310 may be implemented by at least one processor, for example, may correspond to processor 1110 shown in FIG. 11 .

Optionally, the information transmission device 1300 may further include a storage unit, which may be used to store instructions or data, and the processing unit may call the instructions or data stored in the storage unit to implement corresponding operations.

It should be understood that the specific process for each unit to perform the above corresponding steps has been described in detail in the above method embodiments, and for the sake of brevity, details are not repeated here.

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

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

For example, a processing unit is configured to encode data according to a first modulation and/or a first coding method; a transceiver unit is configured to send control information and the data, and the control information and the data are multiplexed in the first In the physical shared channel, the control information is used to indicate the first modulation mode and/or the first coding mode 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 the 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 the phase tracking reference signal PT-RS of the first physical shared channel.

It should also be understood that when the information transmission device 1300 is a second communication device, the transceiver unit 1320 in the information transmission device 1300 can be implemented through a communication interface (such as a transceiver or an input/output interface), for example, it can correspond to the The processing unit 1310 in the information transmission device 1300 may be implemented by at least one processor, for example, may correspond to the processor 1110 shown in FIG. 11 .

In addition, in this application, the information transmission device 1300 is presented in the form of functional modules. The "module" here may refer to an application-specific integrated circuit ASIC, a circuit, a processor and memory executing one or more software or firmware programs, an integrated logic circuit, and/or other devices that can provide the above-mentioned functions. In a simple embodiment, it will be appreciated by those skilled in the art that the 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 . Optionally, if the computer device shown in FIG. 11 includes a memory 1130 , the processing unit 1310 may be implemented by the processor 1110 and the memory 1130 . The transceiver unit 1320 may be implemented by the transceiver 1130 shown in FIG. 11 . The transceiver 1130 includes a receiving function and a sending function. Specifically, the processor is implemented by executing computer programs stored in the memory. Optionally, when the device 1300 is a chip, the function and/or implementation process of the transceiver unit 1320 may also be implemented through pins or circuits. Optionally, the memory may be a storage unit in the chip, such as a register, a cache, etc., and the storage unit may also be a storage unit located outside the chip in the information transmission device, such as the memory shown in FIG. 11 1130, or, may also be a storage unit deployed in other systems or devices, not in the computer device.

Various aspects or features of the present application can 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 tape, etc.), optical disks (e.g., compact disc (compact disc, CD), digital versatile disc (digital versatile disc, DVD) etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), card, stick or key drive, etc.). Additionally, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, various other media capable of storing, containing and/or carrying instructions and/or data.

According to the methods provided in the embodiments of the present application, the present application also provides a computer program product, the computer program product including: a computer program or a set of instructions, when the computer program or a set of instructions is run on a computer, the computer is made 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 also provides a computer-readable storage medium, the computer-readable medium stores a program or a set of instructions, and when the program or a set of instructions is run on a computer, the computer Execute the method of any one of the embodiments shown in FIG. 3 and FIG. 4 .

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

The terms "component", "module", "system" and the like are used in this specification to refer to a computer-related entity, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a component may be, but is not limited to being, a process running on a processor, 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 components. One or more components can reside within a process and/or thread of execution and a component can 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. A component may pass through a signal having one or more packets of data (for example, data from two components interacting with another component between a local system, a distributed system, and/or a network, such as the Internet through a signal interacting with other systems) local and/or remote processes to communicate.

It should also be understood that the term "and/or" in this article is only an association relationship describing associated objects, indicating that there may be three relationships, for example, A and/or B may indicate: A exists alone, and A and B exist simultaneously. B, there are three situations of B alone. In addition, the character "/" in this article generally indicates that the contextual objects are an "or" relationship.

It should also be understood that the numbers "first", "second", etc. introduced in the embodiments of the present application are only to distinguish different objects, for example, to distinguish different "information", or, "device", or, "unit", for The understanding of specific objects and the correspondence between different objects should be determined by their functions and internal logic, and should not constitute any limitation to the implementation process of the embodiment of the present application.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be determined by the protection scope of the claims.

Claims

A method for information transmission, characterized by comprising:

receiving control information and data, the control information and the data are multiplexed in the first physical shared channel, and the control information is used to indicate the first modulation mode and/or the first coding mode of the data;

Decode the data according to the first modulation mode and/or the first coding mode.
The method according to claim 1, wherein the data comprises semi-statically transmitted data.
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.
The method according to any one of claims 1 to 3, wherein the first configuration information is also used to configure N physical shared channels for the semi-static transmission, and the N physical shared channels include the In the first physical shared channel, N is a positive integer.
The method according to 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, and M is a positive integer of N times.
The method according to claim 5, wherein the data of the M physical shared channels is processed according to the first modulation and/or the first coding mode of the control information.
The method according to any one of 1 to 6, characterized in that the symbols mapped to the first physical shared channel by the control information do not include the demodulation reference signal DM-RS carried on the first physical shared channel symbol.
The method according to any one of claims 1 to 7, wherein the first physical shared channel includes a first symbol, and the first symbol is the first unsigned symbol in the first physical shared channel. A symbol that bears the DM-RS, where the first symbol includes a first resource element RE, and the first RE is a resource element that does not bear the 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 based on the number of the first REs on the first symbol and The number of REs to which the control information is not mapped is determined.
The method according to claim 8, wherein the first physical shared channel further includes a second symbol, and the second symbol is adjacent to the first symbol that does not carry the control information and the a symbol of the DM-RS, 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 based on the number of the first RE on the second symbol and The number of REs to which the control information is not mapped is determined.
The method according to any one of claims 1 to 9, wherein the first configuration information is further used to indicate symbol ordering information of symbols that the control information is mapped to the first physical shared channel, wherein ,

The symbol sorting information is sorted according to the manners or sequentially of one or more of the DM-RSs.
The method according to any one of claims 1 to 10, further comprising:

receiving second configuration information, where the second configuration information is used to indicate the preset time domain density of the phase tracking reference signal PT-RS of the first physical shared channel;

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, skip the RE occupied by the PT-RS, and the PT-RS The occupied REs are determined according to the preset time domain density.
The method according to any one of claims 1 to 11, wherein the semi-statically transmitted data is mapped to a second RE on the first physical shared channel, and the second RE is the Resource elements of the control information, the DM-RS and the PT-RS are not carried in the first physical shared channel.
The method according to any one of claims 1 to 12, wherein the control information is also used to indicate Hybrid Automatic Repeat Request (HARQ) information.
The method according to any one of claims 1 to 13, wherein the first configuration information is further used to indicate that the control information applies to one or more transport blocks TB of the semi-static transmission.
The method according to any one of claims 1 to 14, wherein the first configuration information is further used to indicate a second modulation mode and/or a second coding mode of the control information.
The method of claim 15, further comprising:

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

The second modulation method is:

binary phase shift keying; or,

π/2 - binary phase shift keying; or,

quadrature phase keying modulation; or,

quadrature amplitude modulation;

The second encoding method is:

Reed-Muller RM code encoding; or,

Cyclic redundancy check CRC code encoding and RM encoding; or,

Duplicate codes; or,

CRC code encoding and polar code encoding.
A method for information transmission, characterized by comprising:

Encode the data according to the first modulation mode and/or the first encoding mode;

sending control information and the data, the control information and the data are multiplexed in the first physical shared channel, the control information is used to indicate the first modulation mode of the data and/or the first Encoding.
The method according to claim 17, wherein said data comprises semi-statically transmitted data.
The method according to claim 17 or 18, further comprising:

Sending first configuration information, where the first configuration information is used to configure the semi-static transmission, and the physical shared channel carrying the semi-static transmission includes the first physical shared channel.
The method according to any one of claims 17 to 19, wherein the first configuration information is also used to configure the N physical shared channels of the semi-static transmission, and the N physical shared channels include all In the first physical shared channel, N is a positive integer.
The method according to 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, and M is a positive integer of N times.
The method according to claim 21, wherein the data of the M physical shared channels is processed according to the first modulation and/or the first coding mode of the control information.
The method according to any one of 17 to 22, wherein the symbols mapped to the first physical shared channel by the control information do not include the demodulation reference signal DM-RS carried on the first physical shared channel symbol.
The method according to any one of claims 17 to 23, wherein the first physical shared channel includes a first symbol, and the first symbol is the first unsigned symbol in the first physical shared channel. A symbol that bears the DM-RS, where the first symbol includes a first resource element RE, and the first RE is a resource element that does not bear the 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 based on the number of the first REs on the first symbol and The number of REs to which the control information is not mapped is determined.
The method according to claim 24, wherein the first physical shared channel further includes a second symbol, and the second symbol is adjacent to the first symbol that does not carry the control information and the a symbol of the DM-RS, 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 based on the number of the first RE on the second symbol and The number of REs to which the control information is not mapped is determined.
The method according to any one of claims 17 to 25, wherein the first configuration information is further used to indicate symbol ordering information of symbols that the control information is mapped to the first physical shared channel, wherein ,

The symbol sorting information is sorted according to the manners or sequentially of one or more of the DM-RSs.
The method according to any one of claims 17 to 26, further comprising:

Sending second configuration information, where the second configuration information is used to indicate the preset time domain density of the phase tracking reference signal PT-RS of the first physical shared channel;

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, skip the RE occupied by the PT-RS, and the PT-RS The occupied REs are determined according to the preset time domain density.
The method according to any one of claims 17 to 27, wherein the semi-statically transmitted data is mapped to a second RE on the first physical shared channel, and the second RE is the Resource elements of the control information, the DM-RS and the PT-RS are not carried in the first physical shared channel.
The method according to any one of claims 17 to 28, wherein the control information is also used to indicate Hybrid Automatic Repeat Request (HARQ) information.
The method according to any one of claims 17 to 29, wherein the first configuration information is further used to indicate that the control information applies to one or more transport blocks TB of the semi-static transmission.
The method according to any one of claims 17 to 30, wherein the first configuration information is further used to indicate a second modulation mode and/or a second coding mode of the control information.
The method of claim 31, further comprising:

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

The second modulation method is:

binary phase shift keying; or,

π/2 - binary phase shift keying; or,

quadrature phase keying modulation; or,

quadrature amplitude modulation;

The second encoding method is:

Reed-Muller RM code encoding; or,

Cyclic redundancy check CRC code encoding and RM encoding; or,

Duplicate codes; or,

CRC code encoding and polar code encoding.
A communication device, characterized by comprising:

memory for storing computer instructions;

a processor configured to execute computer instructions stored in the memory, causing the communication device to perform the method according to any one of claims 1 to 16, or,

The communication device is caused to execute the method according to any one of claims 17-32.
A computer-readable storage medium, characterized in that a computer program is stored thereon, and when the computer program is executed by a communication device, the method according to any one of claims 1 to 32 is executed.
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.
A system on a chip, characterized in that it includes: a processor, configured to call and run computer programs or instructions from a memory, so that the communication device installed with the system on a chip implements any one of claims 1 to 32. Methods.