Method and apparatus for information transmission

Abstract

The application provides a method and device for information transmission, comprising: receiving control information and data, the control information and the data being multiplexed in a first physical shared channel, the control information being used for indicating a first modulation mode and / or a first coding mode of the data; and decoding the data according to the first modulation mode and / or the first coding mode. According to the technical scheme of the application, by multiplexing the data and the control information corresponding to the data in the same physical shared channel, reliable transmission of the data can be provided while reducing the detection cost of detecting the control information.

Description

[0001] This application claims priority to the Chinese patent application No. 202110785449.3, filed on July 12, 2021, entitled “SPS scheduling method”, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of communication, and more particularly, to a method and apparatus for information transmission. BACKGROUND

[0003] The real-time broadband communication (RTBC) scenario in future communication systems aims to support large bandwidth and low interaction latency, and the goal is to increase the bandwidth by 10 times under a given latency and certain reliability requirement, to create an immersive experience when people interact with the virtual world. Among them, the extended reality professional (XR Pro) service with ultra-high bandwidth and ultra-low latency requirements poses more severe challenges to the 5th generation (5G) mobile communication technology. XR mainly includes virtual reality (VR), augmented reality (AR), and mixed reality (MR) and other virtual and real interactive technologies. Among them, in the downlink transmission process, the XR content of the server will generate data content at a fixed frequency (for example, 60Hz or 120Hz), and will be transmitted to the terminal device of the XR by the base station side. In addition, due to the need for graphics generation, AR and MR devices need to be equipped with cameras to capture and continuously upload the current scene image at a specific frequency (for example, 60Hz).

[0004] In the current new radio (NR), both dynamic scheduling and semi-static scheduling are provided for uplink transmission and downlink transmission. Among them, dynamic scheduling can configure different parameters for each transmission to adapt to the change of channel state, but dynamic scheduling requires the receiving end to blindly detect the control information, which increases the power consumption overhead of the receiving end. Semi-static scheduling has the characteristic of configuring once and using multiple times, that is, after configuring the parameters once, the subsequent transmission uses the parameters configured this time. Although, under semi-static scheduling, the receiving end does not need to blindly detect the control information. However, the change of the configuration parameters of semi-static transmission needs to be reconfigured or reactivated through the control information. In this case, the receiving end still needs to blindly detect the control information, thereby bringing the power consumption overhead.

[0005] Therefore, there is an urgent need for a method for information transmission, which can make corresponding changes based on channel changes for semi-static transmission to provide transmission reliability and resource utilization, and avoid power consumption caused by blind detection of DCI at the receiving end. SUMMARY

[0006] The present application provides a method and apparatus for information transmission, which helps to reduce the detection overhead of control information while providing reliable transmission of data.

[0007] In a first aspect, a method for information transmission is provided, comprising: receiving control information and data, the control information and the data being multiplexed in a first physical shared channel, the control information being used to indicate a first modulation mode and / or a first coding mode of the data; and decoding the data according to the first modulation mode and / or the first coding mode.

[0008] According to the technical solution of the present application, by multiplexing the data and the corresponding control information of the data in the same physical shared channel, reliable transmission of data is provided while reducing the detection overhead of control information.

[0009] The data includes semi-static transmission data.

[0010] In combination with the first aspect, in some implementations of the first aspect, the method further comprises: receiving first configuration information, the first configuration information being used to configure semi-static transmission, and the physical shared channel carrying the semi-static transmission including the first physical shared channel.

[0011] In combination with the first aspect, in some implementations of the first aspect, the first configuration information is further used to configure N physical shared channels for semi-static transmission, the N physical shared channels including the first physical shared channel, and N being a positive integer.

[0012] In combination with the first aspect, in some implementations of the first aspect, the first configuration information is further used to indicate that the control information is applied to M physical shared channels corresponding to the data of the semi-static transmission, and M being a positive integer multiple of N.

[0013] 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.

[0014] In combination with the first aspect, in some implementations of the first aspect, the symbol of the first physical shared channel to which the control information is mapped does not include a symbol carrying a demodulation reference signal (DM-RS) on the first physical shared channel.

[0015] With reference to the first aspect, in some implementations of the first aspect, the first physical shared channel comprises a first symbol, the first symbol being a first symbol of the first physical shared channel that does not carry the DM-RS, the first symbol comprising first resource elements (REs), the first REs being resource elements that do not carry phase tracking reference signals (PT-RSs), the control information being mapped on the first REs on the first symbol according to a first frequency domain mapping interval, the first frequency domain mapping interval being determined according to a number of the first REs on the first symbol and a number of REs on which the control information is not mapped.

[0016] With reference to the first aspect, in some implementations of the first aspect, the first physical shared channel further comprises a second symbol, the second symbol being a symbol adjacent to the first symbol that does not carry the control information and the DM-RS, the second symbol comprising the first REs, the control information being mapped on the first REs on the second symbol according to a second frequency domain mapping interval, the second frequency domain mapping interval being determined according to a number of the first REs on the second symbol and a number of REs on which the control information is not mapped.

[0017] With reference to the first aspect, in some implementations of the first aspect, the first configuration information further indicates symbol order information of the control information mapping to the symbols of the first physical shared channel, wherein the symbol order information is ordered according to a manner of being adjacent to one or more DM-RSs or is sequentially ordered.

[0018] With reference to the first aspect, in some implementations of the first aspect, the method further comprises: receiving second configuration information, the second configuration information indicating a preset time domain density of phase tracking reference signals (PT-RSs) of the first physical shared channel; and when the control information is mapped on the first REs according to the first frequency domain mapping interval or the second frequency domain mapping interval, skipping REs occupied by the PT-RSs, the REs occupied by the PT-RSs being determined according to the preset time domain density.

[0019] With reference to the first aspect, in some implementations of the first aspect, the data transmitted semi-statically is mapped to second REs on the first physical shared channel, the second REs being resource elements of the first physical shared channel that do not carry the control information, the DM-RS, or the PT-RSs.

[0020] With reference to the first aspect, in some implementations of the first aspect, the control information further indicates hybrid automatic repeat request (HARQ) information.

[0021] In some implementations of the first aspect, the first configuration information is further used to indicate that the control information is applied to one or more transport blocks (TBs) of the semi-static transmission.

[0022] In some implementations of the first aspect, the first configuration information is further used to indicate a second modulation mode and / or a second encoding mode of the control information, and the method further includes decoding the control information according to the second modulation mode and / or the second encoding mode.

[0023] The second modulation mode is binary phase shift keying, or pi / 2-binary phase shift keying, or quadrature phase shift keying, or quadrature amplitude modulation. The second encoding mode 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.

[0024] In some implementations of the first aspect, the first configuration information is further used to indicate a second modulation mode and / or a second encoding mode of the control information, and the method further includes decoding the control information according to the second modulation mode and / or the second encoding mode.

[0025] 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, the reliable transmission of the data is provided while reducing the detection overhead of detecting the control information.

[0026] The data includes data of the semi-static transmission.

[0027] In some implementations of the second aspect, the method further includes sending the first configuration information, the first configuration information being used to configure the semi-static transmission, and the physical shared channel carrying the semi-static transmission including the first physical shared channel.

[0028] In some implementations of the second aspect, the first configuration information is further used to configure N physical shared channels of the semi-static transmission, the N physical shared channels including the first physical shared channel, and N being a positive integer.

[0029] In some implementations of the second aspect, the first configuration information is further used to indicate that the control information is applied to M physical shared channels corresponding to the data of the semi-static transmission, M being a positive integer multiple of N.

[0030] In some implementations of the second aspect, the data of the M physical shared channels is processed according to the first modulation and / or the first encoding of the control information.

[0031] With reference to the second aspect, in some implementations of the second aspect, the symbol of the first physical shared channel on which the control information is mapped does not include a symbol on which a demodulation reference signal (DM-RS) is carried.

[0032] With reference to the second aspect, in some implementations of the second aspect, the first physical shared channel includes a first symbol, the first symbol being a first symbol in the first physical shared channel on which no DM-RS is carried, the first symbol including first resource elements (REs), the first REs being REs on which no phase tracking reference signal (PT-RS) is carried, the control information being mapped on the first REs on the first symbol according to a first frequency domain mapping interval, the first frequency domain mapping interval being determined according to a number of the first REs on the first symbol and a number of REs on which the control information is not mapped.

[0033] With reference to the second aspect, in some implementations of the second aspect, the first physical shared channel further includes a second symbol, the second symbol being a symbol adjacent to the first symbol on which no control information and no DM-RS is carried, the second symbol including the first REs, the control information being mapped on the first REs on the second symbol according to a second frequency domain mapping interval, the second frequency domain mapping interval being determined according to a number of the first REs on the second symbol and a number of REs on which the control information is not mapped.

[0034] With reference to the second aspect, in some implementations of the second aspect, the first configuration information further indicates symbol order information of the symbol of the first physical shared channel on which the control information is mapped, the symbol order information being ordered according to a proximity to one or more DM-RSs or being ordered according to a sequence.

[0035] With reference to the second aspect, in some implementations of the second aspect, the method further includes transmitting second configuration information, the second configuration information indicating a preset time domain density of a PT-RS of the first physical shared channel, and when the control information is mapped on the first REs according to the first frequency domain mapping interval or the second frequency domain mapping interval, skipping REs occupied by the PT-RS, the REs occupied by the PT-RS being determined according to the preset time domain density.

[0036] With reference to the second aspect, in some implementations of the second aspect, the semi-statically transmitted data is mapped to second REs on the first physical shared channel, the second REs being REs on which no control information, no DM-RS, and no PT-RS is carried.

[0037] With reference to the second aspect, in some implementations of the second aspect, the control information further indicates hybrid automatic repeat request (HARQ) information.

[0038] In some implementations of the second aspect, the first configuration information is further used to indicate that the control information is applied to one or more transport blocks (TBs) of the semi-static transmission.

[0039] In some implementations of the second aspect, the first configuration information is further used to indicate a second modulation mode and / or a second encoding mode of the control information, and the method further includes: encoding the control information according to the second modulation mode and / or the second encoding mode.

[0040] In some implementations of the second aspect, the second modulation mode is quadrature phase shift keying (QPSK) modulation, and the second encoding mode is Reed-Muller (RM) encoding, or cyclic redundancy check (CRC) encoding and RM encoding, or repetition encoding, or CRC encoding and polar encoding.

[0041] A third aspect provides a communication apparatus, configured to implement the communication method of the first aspect. Specifically, the communication apparatus includes modules for implementing the communication method of the first aspect.

[0042] By way of example, the communication apparatus is a receiving end of a wireless communication.

[0043] In some implementations of the third aspect, the communication apparatus includes: a transceiver configured to receive the control information and the data multiplexed in the first physical shared channel, the control information being used to indicate a first modulation mode and / or a first encoding mode of the data; and a processing unit configured to decode the data according to the first modulation mode and / or the first encoding mode.

[0044] In some implementations of the third aspect, the data includes data of the semi-static transmission.

[0045] In some implementations of the third aspect, the transceiver is further configured to receive first configuration information, the first configuration information being used to configure the semi-static transmission, and the physical shared channel carrying the semi-static transmission including the first physical shared channel.

[0046] In some implementations of the third aspect, the first configuration information is further used to configure N physical shared channels of the semi-static transmission, the N physical shared channels including the first physical shared channel, and N being a positive integer.

[0047] In some implementations of the third aspect, the first configuration information is further used to indicate that the control information is applied to M physical shared channels corresponding to data of the semi-static transmission, M being a positive integer multiple of N.

[0048] In some implementations of the third aspect, the data of the M physical shared channels is processed according to the first modulation and / or the first encoding of the control information.

[0049] In some implementations of the third aspect, in combination with the third aspect, the symbol of the first physical shared channel on which the control information is mapped does not include a symbol on which a demodulation reference signal (DM-RS) is carried.

[0050] In some implementations of the third aspect, in combination with the third aspect, the first physical shared channel includes a first symbol, the first symbol being a first symbol in the first physical shared channel on which no DM-RS is carried, the first symbol including a first resource element (RE), the first RE being a resource element on which no PT-RS is carried, the control information being mapped on the first RE of the first symbol according to a first frequency domain mapping interval, the first frequency domain mapping interval being determined according to a number of the first RE on the first symbol and a number of REs on which the control information is not mapped.

[0051] In some implementations of the third aspect, in combination with the third aspect, the first physical shared channel further includes a second symbol, the second symbol being a symbol adjacent to the first symbol on which no control information and no DM-RS is carried, the second symbol including the first RE, the control information being mapped on the first RE of the second symbol according to a second frequency domain mapping interval, the second frequency domain mapping interval being determined according to a number of the first RE on the second symbol and a number of REs on which the control information is not mapped.

[0052] In some implementations of the third aspect, in combination with the third aspect, the first configuration information is further used to indicate symbol order information of the symbol of the first physical shared channel on which the control information is mapped, wherein the symbol order information is ordered according to a manner of being adjacent to one or more DM-RS or is sequentially ordered.

[0053] In some implementations of the third aspect, in combination with the third aspect, the transceiver is further configured to receive second configuration information, the second configuration information being used to indicate a preset time domain density of a phase tracking reference signal (PT-RS) of the first physical shared channel, and the processor is further configured to, 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 an RE occupied by the PT-RS, the RE occupied by the PT-RS being determined according to the preset time domain density.

[0054] In some implementations of the third aspect, in combination with the third aspect, the data transmitted semi-statically is mapped to a second RE on the first physical shared channel, the second RE being a resource element on which no control information, no DM-RS, and no PT-RS is carried.

[0055] In some implementations of the third aspect, in combination with the third aspect, the control information is further used to indicate hybrid automatic repeat request (HARQ) information.

[0056] In some implementations 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 (TBs) of the semi-static transmission.

[0057] In some implementations of the third aspect, the first configuration information is further used to indicate a second modulation mode and / or a second encoding mode of the control information, and the processing unit is specifically configured to decode the control information according to the second modulation mode and / or the second encoding mode.

[0058] The second modulation mode is binary phase shift keying, or π / 2-binary phase shift keying, or quadrature phase keying, or quadrature amplitude modulation. The second encoding mode 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.

[0059] A fourth aspect provides a communication apparatus, which is configured to implement the communication method of the second aspect. Specifically, the communication apparatus includes modules for implementing the communication method of the second aspect.

[0060] By way of example, the communication apparatus is a transmitting end of a wireless communication.

[0061] As a possible implementation, the communication apparatus includes a processing unit configured to encode data according to a first modulation mode and / or a first encoding mode, and a transceiver configured to transmit the control information and the data multiplexed in a first physical shared channel, the control information being used to indicate the first modulation mode and / or the first encoding mode of the data.

[0062] The data includes data of the semi-static transmission.

[0063] In some implementations of the fourth aspect, the transceiver is further configured to transmit the first configuration information, the first configuration information being used to configure the semi-static transmission, and the physical shared channel carrying the semi-static transmission including the first physical shared channel.

[0064] In some implementations of the fourth aspect, the first configuration information is further used to configure N physical shared channels of the semi-static transmission, the N physical shared channels including the first physical shared channel, and N being a positive integer.

[0065] In some implementations of the fourth aspect, the first configuration information is further used to indicate that the control information is applied to M physical shared channels corresponding to data of the semi-static transmission, M being a positive integer multiple of N.

[0066] In some implementations of the fourth aspect, in combination with the fourth aspect, the data of the M physical shared channels is processed according to the first modulation and / or the first coding of the control information.

[0067] In some implementations of the fourth aspect, in combination with the fourth aspect, the symbols of the first physical shared channel on which the control information is mapped do not include symbols on which demodulation reference signals (DM-RS) are carried.

[0068] In some implementations of the fourth aspect, in combination with the fourth aspect, the first physical shared channel includes a first symbol, the first symbol being the first symbol of the first physical shared channel that does not carry DM-RS, the first symbol including first resource elements (REs), the first REs being REs that do not carry PT-RS, the control information being mapped on the first REs of the first symbol according to a first frequency domain mapping interval, the first frequency domain mapping interval being determined according to a number of the first REs on the first symbol and a number of REs on which the control information is not mapped.

[0069] In some implementations of the fourth aspect, in combination with the fourth aspect, the first physical shared channel further includes a second symbol, the second symbol being a symbol adjacent to the first symbol that does not carry the control information and DM-RS, the second symbol including the first REs, the control information being mapped on the first REs of the second symbol according to a second frequency domain mapping interval, the second frequency domain mapping interval being determined according to a number of the first REs on the second symbol and a number of REs on which the control information is not mapped.

[0070] In some implementations of the fourth aspect, in combination with the fourth aspect, the first configuration information further indicates symbol order information of the symbols of the first physical shared channel on which the control information is mapped, the symbol order information being ordered according to proximity to one or more DM-RS or being ordered sequentially.

[0071] In some implementations of the fourth aspect, in combination with the fourth aspect, the transceiver is further configured to transmit second configuration information, the second configuration information indicating a preset time domain density of phase tracking reference signals (PT-RS) of the first physical shared channel, and the processor is configured to skip REs occupied by the PT-RS when the control information is mapped on the first REs according to the first frequency domain mapping interval or the second frequency domain mapping interval, the REs occupied by the PT-RS being determined according to the preset time domain density.

[0072] In some implementations of the fourth aspect, in combination with the fourth aspect, the data of the semi-static transmission is mapped on second REs of the first physical shared channel, the second REs being REs of the first physical shared channel that do not carry the control information, DM-RS, or PT-RS.

[0073] In some implementations of the fourth aspect, in combination with the fourth aspect, the control information further indicates hybrid automatic repeat request (HARQ) information.

[0074] In some implementations of the fourth aspect, in combination with the fourth aspect, the first configuration information is further used to indicate that the control information is applied to one or more transport blocks (TBs) of the semi-static transmission.

[0075] In some implementations of the fourth aspect, in combination with 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 encode the control information according to the second modulation mode and / or the second coding mode.

[0076] In some implementations of the fourth aspect, in combination with the fourth aspect, the second modulation mode is quadrature phase shift keying (QPSK) modulation, and the second coding mode is Reed-Muller (RM) coding, cyclic redundancy check (CRC) coding and RM coding, repetition coding, or CRC coding and polar coding.

[0077] In a fifth aspect, a communication apparatus is provided, which includes a processor and an interface circuit, the interface circuit being configured to receive signals from other communication apparatuses outside the communication apparatus and transmit the signals to the processor or send signals from the processor to the other communication apparatuses outside the communication apparatus, and the processor being configured to implement the method in any possible implementation of the first aspect by means of a logic circuit or by executing code instructions.

[0078] In a sixth aspect, a communication apparatus is provided, which includes a processor and an interface circuit, the interface circuit being configured to receive signals from other communication apparatuses outside the communication apparatus and transmit the signals to the processor or send signals from the processor to the other communication apparatuses outside the communication apparatus, and the processor being configured to implement the method in any possible implementation of the second aspect by means of a logic circuit or by executing code instructions.

[0079] In a seventh aspect, a computer-readable storage medium is provided, which stores a computer program or instructions, when the computer program or instructions are executed, implement the method in any possible implementation of the first aspect or the second aspect.

[0080] In an eighth aspect, a computer program product is provided, which includes instructions, when the instructions are executed, implement the method in any possible implementation of the first aspect or the second aspect.

[0081] In a ninth aspect, a computer program is provided, which includes code or instructions, when the code or instructions are executed, implement the method in any possible implementation of the first aspect or the second aspect.

[0082] In a tenth aspect, a chip system is provided, which includes a processor, and further includes a memory for implementing the method in any possible implementation of the first aspect or the second aspect. The chip system is composed of a chip, and also includes a chip and other discrete devices.

[0083] In an eleventh aspect, a communication system is provided, which includes a first communication device and a second communication device.

[0084] The first communication device is configured to implement the method in any implementation of the first aspect, and the second communication device is configured to implement the method in any implementation of the second aspect.

[0085] In a possible design, the communication system further includes other devices interacting with the first communication device or the second communication device in the solutions provided in the embodiments of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0086] Figure 1 FIG. 1 is a schematic diagram of a communication system 100 to which the present application is applicable.

[0087] Figure 2 FIG. 2 is a schematic diagram of an example of a semi-static transmission method applicable to the present application.

[0088] Figure 3 FIG. 3 is a schematic diagram of an example of an information transmission method provided by the present application.

[0089] Figure 4 FIG. 4 is a schematic diagram of an example of a specific example of an information transmission method provided by the present application.

[0090] Figure 5 FIG. 5 is a schematic diagram of an example of multiplexing control information in a single symbol of a physical shared channel.

[0091] Figure 6 FIG. 6 is a schematic diagram of an example of multiplexing control information in multiple symbols of a physical shared channel.

[0092] Figure 7 FIG. 7 is a schematic diagram of an example of multiplexing control information in a physical shared channel carrying additional DM-RS symbols.

[0093] Figure 8 FIG. 8 is a schematic diagram of an example of multiplexing control information in a physical shared channel carrying PT-RS symbols.

[0094] Figure 9 FIG. 9 is a schematic diagram of an example of applying control information to multiple SPSs.

[0095] Figure 10 FIG. 10 is a schematic diagram of an example of applying control information to multiple physical shared channels of one SPS.

[0096] Figure 11 is another example diagram of the application control information applied to multiple physical shared channels of multiple SPS.

[0097] Figure 12 is an example diagram of the information transmission device provided by the application.

[0098] Figure 13 is an example diagram of the information transmission device provided by the application. DETAILED DESCRIPTION

[0099] The technical solutions in the application will be described below with reference to the accompanying drawings.

[0100] Figure 1 is a diagram of a communication system 100 suitable for embodiments of the application.

[0101] As shown in Figure 1 , the communication system 100 can include one or more network devices, such as the network device 101 shown in Figure 1 . The communication system 100 can also include one or more terminal devices (also referred to as user equipment (UE)), such as the terminal device 102, the terminal device 103, and the terminal device 104, etc. shown in Figure 1 . The communication system 100 can support sidelink communication technology, such as sidelink communication between the terminal device 102 and the terminal device 103, sidelink communication between the terminal device 102 and the terminal device 104, etc.

[0102] It should be understood that Figure 1 this is only a schematic diagram, and the communication system can also include other network devices, such as the core network device 105 and wireless relay devices and wireless backhaul devices not shown in Figure 1 . Embodiments of the application do not limit the number of network devices and terminal devices included in the mobile communication system.

[0103] The terminal device in the embodiments of the present application can refer to a user equipment, an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent or a user apparatus. The terminal in the embodiments of the present application can be a mobile phone, a pad, a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal in a 5G network or a terminal in a future evolution network, etc.

[0104] Among them, the wearable device can also be called a wearable smart device, which is a general term for devices that can be designed and developed by applying wearable technology to daily wear, such as glasses, gloves, watches, clothing and shoes, etc. The wearable device is a portable device that can be directly worn on the body or integrated into the user's clothes or accessories. The wearable device is not only a hardware device, but also a powerful function realized through software support and data interaction, cloud interaction. The general wearable smart device includes full function, large size, and can realize complete or partial functions without relying on a smart phone, such as smart watches or smart glasses, etc., and only focuses on a certain application function and needs to cooperate with other devices such as a smart phone, such as various smart wristbands, smart jewelry, etc. for monitoring body signs.

[0105] In addition, the terminal device can also be a terminal device in an internet of things (IoT) system. The technical feature of IoT is to connect articles through communication technology and network, so as to realize the intelligent network of man-machine interconnection and object-object interconnection. The specific form of the terminal device is not limited in the present application.

[0106] It should be understood that in the embodiments of the present application, the terminal device can be an apparatus for implementing the functions of the terminal device, or an apparatus capable of supporting the terminal device to implement the functions, such as a chip system, which can be installed in the terminal. In the embodiments of the present application, the chip system can be composed of a chip, or can include a chip and other discrete devices.

[0107] The network device in the embodiments of the present application can be any device with wireless transceiving function. The device includes but is not limited to: an evolved Node B (eNB), a home base station (for example, a home evolved node B, or a home node B, HNB), a baseband unit (BBU), an access point (AP) in a wireless fidelity (WIFI) system, a wireless relay node, a wireless backhaul node, a transmission point (TP), or a transmission and reception point (TRP), etc. It can also be a next generation base station (gNB) in the 5th generation (5G), such as a new radio (NR) system, or a transmission point (TRP or TP), one or a group of (including multiple antenna panels) antenna panels of a base station in a 5G system, or it can also be a network node constituting a gNB or a transmission point, such as a baseband unit (BBU), or a distributed unit (DU), etc.

[0108] In some deployments, a gNB can include a centralized unit (CU) and a DU. The CU implements part of the functions of the gNB, and the DU implements part of the functions of the gNB. For example, the CU is responsible for processing non-real-time protocols and services, implements the radio resource control (RRC), and the functions of the packet data convergence protocol (PDCP) layer. The DU is responsible for processing the physical layer protocol and real-time services, and implements the functions of the radio link control (RLC) layer, the media access control (MAC) layer, and the physical (PHY) layer. The gNB can also include an active antenna unit (AAU). The AAU implements part of the physical layer processing function, the radio frequency processing, and the related functions of the active antenna. Since the information of the RRC layer eventually becomes the information of the PHY layer, or is transformed from the information of the PHY layer, under this architecture, high-layer signaling, such as RRC layer signaling, can also be considered as being sent by the DU, or by the DU+AAU. It can be understood that the network device can be a device including one or more of the CU node, the DU node, and the AAU node. In addition, the CU can be divided into a network device in the radio access network (RAN), or can be divided into a network device in the core network (CN), which is not limited in the present application.

[0109] It should be understood that in the embodiments of the present application, the network device can be an apparatus for implementing the functions of the network device, or an apparatus capable of supporting the network device to implement the functions, such as a chip system, which can be installed in the network device.

[0110] The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), 5G system, vehicle-to-other device (V2X), wherein V2X can include vehicle-to-network (V2N), vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), vehicle-to-pedestrian (V2P), etc., vehicle-to-vehicle communication long term evolution technology (LTE-V), Internet of Vehicles, machine type communication (MTC), Internet of Things (IoT), inter-machine communication long term evolution technology (LTE-M), machine-to-machine (M2M), device-to-device (D2D), etc. or future evolved communication systems, such as 6th generation (6G) system.

[0111] The real time broadband communication (RTBC) scenario under the new vision of 5G aims to support large bandwidth and low interaction delay, and the target is to improve the bandwidth under a given time delay and certain reliability requirement, and to create an immersive experience when a person interacts with a virtual world. Among them, the extended reality (XR) Pro service with ultra-high bandwidth and ultra-low delay requirements poses a more severe challenge to the current 5G. XR mainly includes virtual reality (VR), augmented reality (AR) and mixed reality (MR) and other virtual and real interaction technologies. Among them, in the downlink transmission process, the XR content of the server will generate data content at a fixed frequency (for example, 60Hz, 120Hz), and will be transmitted to the extended reality terminal device (XR UE) by the base station side. In addition, due to the need of graphics generation, AR and MR devices need to be equipped with cameras to collect and continuously upload the current scene image at a certain frequency (for example, 60Hz).

[0112] In NR, data scheduling can generally be divided into dynamic scheduling and semi-static scheduling. Semi-static scheduling includes configuration authorization scheduling and semi-persistent scheduling.

[0113] For example, uplink scheduling is divided into two types: dynamically scheduled transmission and configured grant (CG) scheduling-free transmission. CG scheduling-free transmission will be referred to as CG transmission in the following text. Dynamically scheduled transmission involves the UE sending a transmission request and reporting the amount of data to be transmitted to the base station before uplink data transmission. The base station allocates corresponding transmission resources to the UE based on the information reported by the UE. Dynamic scheduling can configure different parameters for each transmission to adapt to changes in channel state. However, dynamic scheduling requires blind detection control information from the receiver, increasing the power consumption of the receiver. Configured grant scheduling-free transmission means that the UE does not need to send a scheduling request to the base station for each transmission, nor does it need to wait for uplink scheduling permission from the base station. Instead, the UE autonomously transmits uplink data periodically on the configured or activated resources. Uplink scheduling-free transmission includes two types: type 1 and type 2. For type 1, the configuration of uplink scheduling-free transmission is entirely completed through RRC signaling. For type 2, the configuration of uplink scheduling-free transmission is first configured by the base station through RRC signaling, and then the uplink transmission is activated by the base station through downlink control information (DCI) signaling. Compared to dynamically scheduled transmission, in scheduling-free transmission, the receiving end does not need blind detection control information. However, if the configuration parameters of CG transmission change, reactivation or reconfiguration is required, which still necessitates blind detection control information from the receiving end, resulting in power consumption overhead.

[0114] like Figure 2 As shown, uplink scheduling-free transmission schemes are divided into two types: Type 1 and Type 2. Type 1 uplink scheduling-free transmission configuration is completed through RRC signaling, while Type 2 uplink scheduling-free transmission configuration is completed through a combination of RRC signaling and DCI activation signaling. For Type 1 uplink scheduling-free data transmission, network equipment (e.g., base stations) first configures periodic transmission resources for terminal equipment via RRC signaling. When the terminal equipment needs to transmit uplink data, it can directly transmit on the configured resources. Compared to scheduling-based data transmission, scheduling-free transmission eliminates the time spent on scheduling requests and data scheduling. All parameters involved in Type 1 scheduling-free transmission are configured via RRC.

[0115] For uplink grant-free data transmission of type 2, the network device (e.g., base station) first configures through RRC signaling, and then activates the uplink transmission through physical downlink control channel (PDCCH) signaling scrambled by configured scheduling radio network temporary identifier (CS-RNTI) by the network device (e.g., base station). The type 2 grant-free transmission resource period is configured through RRC signaling. The specific time-frequency resource configuration, modulation and coding scheme (MCS) level, and multi-input multi-output system (MIMO) parameters are all indicated in the activation DCI signaling. The terminal device can directly transmit on the configured transmission period according to the period and offset configured by RRC after receiving the DCI activation signaling.

[0116] In addition, in downlink transmission, NR also provides two scheduling modes, namely dynamic scheduling and semi-perisistent scheduling (SPS) transmission of pre-configured grant. In dynamic scheduling, the UE needs to always monitor the PDCCH, 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-configured grant, the base station configures the downlink SPS resource period through RRC signaling, but does not activate the SPS at this time. Similar to the type 2 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 position of the subsequent SPS by monitoring the PDCCH. When the downlink SPS is activated, the UE receives the downlink transmission on the pre-configured resource position.

[0117] In wireless transmission, the change of air interface channel can easily cause the transmission signal to generate error code. To solve this problem, the current 3GPP standard adopts MCS based on channel state, that is, the parameters of MCS are adjusted according to the channel condition. The MCS parameters can be used to adjust the modulation and coding strategy of the transmitted data, and at the cost of adding additional redundant bits, the transmission reliability of the data is improved. Specifically, when the channel state is poor, the network equipment (for example, the base station) can use a low-order MCS to transmit data, that is, by adding a large amount of redundant bits and using a low-order modulation method, the system transmission efficiency is reduced at the cost of ensuring the correctness of the transmitted data transmission. When the channel state is good, the network equipment (for example, the base station) can use a high-order MCS to transmit the signal, that is, a high-order modulation method is used, and a small amount of redundant bits are added to improve the bandwidth efficiency.

[0118] The SPS / CG type1 / 2 described above has the characteristics of one-time configuration and multiple transmissions, that is, after configuring the parameters once, all SPS / CG transmitted data uses the configured parameters. If you want to change the configuration parameters, you need to reconfigure RRC or reactivate DCI. But reconfiguration or activation will introduce additional latency. Since the DCI format used for reactivation contains many fields (that is, it occupies a large number of bits), but only 5 bits are used to indicate MCS, and the remaining fields are not helpful for changing MCS, so frequent reactivation seriously increases the overhead of system transmission, not only affects the capacity of the system, but also increases the power consumption of the terminal device blind detection of the reconfiguration or reactivation of the DCI.

[0119] Based on this, the present application proposes a method for transmitting information, in order to reduce the detection overhead of detecting control information while providing reliable transmission of data.

[0120] The technical solutions of the present application will be described in detail below taking the interaction between the first communication device and the second communication device as an example. The first communication device can be a terminal device (such as terminal device 102, terminal device 103, or terminal device 104) in Figure 1 , and the second communication device can be a network device 101 in Figure 1 ; optionally, the first communication device and the second communication device can also be terminal devices, at this time the communication system supports sidelink communication technology, for example, the first communication device is terminal device 102 and the second communication device is terminal device 103 or terminal device 104, or the first communication device is terminal device 103 and the second communication device is terminal device 104 or terminal device 102, etc.

[0121] Figure 3 is an example of the information transmission method of the present application.

[0122] S310, the first communication device receives control information and data from the second communication device, the control information and the data are multiplexed on the first physical shared channel, and the control information is used to indicate a first modulation mode and / or a first coding mode of the data.

[0123] The data includes semi-static transmission data.

[0124] Optionally, the first communication device can further receive first configuration information from the second communication device, 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.

[0125] Optionally, the first configuration information is further used to configure N physical shared channels of the semi-static transmission, the N physical shared channels include the first physical shared channel, and N is a positive integer.

[0126] Optionally, the first configuration information is further used to indicate that the control information is applied to M physical shared channels corresponding to the data of the semi-static transmission, and M is a positive integer multiple of N.

[0127] 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.

[0128] In the embodiment of the present application, the symbol of the first physical shared channel on which the control information is mapped does not include a symbol of a demodulation reference signal (DM-RS) carried on the first physical shared channel. The DM-RS symbol is used for channel estimation by a receiving end device. The closer to the RE of the DM-RS signal, the more accurate the obtained channel estimation data, and therefore data is usually multiplexed near the DM-RS symbol.

[0129] The first physical shared channel includes a first symbol, the first symbol is the first symbol in the first physical shared channel that does not carry the DM-RS, the first symbol includes a first resource element (RE), the first RE is a resource element that does not carry the PT-RS, the control information is mapped on the first RE of the first symbol according to a first frequency domain mapping interval, and the first frequency domain mapping interval is determined according to the number of the first RE on the first symbol and the number of REs that do not carry the control information.

[0130] Optionally, the first physical shared channel further includes a second symbol, the second symbol is a symbol adjacent to the first symbol and does not carry the control information and the DM-RS, the second symbol includes the first RE, and the control information is mapped on the first RE of the second symbol according to a second frequency domain mapping interval, and the second frequency domain mapping interval is determined according to the number of the first RE on the second symbol and the number of REs that do not carry the control information.

[0131] Optionally, the first configuration information further indicates symbol ordering information of the control information mapping to the symbols of the first physical shared channel, wherein the symbol ordering information is ordered according to proximity to the one or more DM-RS or sequentially ordered.

[0132] Optionally, the first communication device can further receive second configuration information from the second communication device, the second configuration information indicating a preset time-domain density of a 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, the RE occupied by the PT-RS is skipped, and the RE occupied by the PT-RS is determined according to the preset time-domain density.

[0133] In the embodiments of the present application, the semi-static transmitted data is mapped to the second RE of the first physical shared channel, and the second RE is a resource unit of the first physical shared channel that does not carry the control information, the DM-RS, and the PT-RS.

[0134] Optionally, the control information further indicates hybrid automatic repeat request (HARQ) information.

[0135] Optionally, the first configuration information further indicates that the control information is applied to one or more transport blocks (TBs) of the semi-static transmission.

[0136] Optionally, the first configuration information further indicates a second modulation mode and / or a second encoding mode of the control information, and the method further includes: encoding the control information according to the second modulation mode and / or the second encoding mode.

[0137] The second modulation mode is binary phase shift keying, or π / 2-binary phase shift keying, or quadrature phase shift keying, or quadrature amplitude modulation, and the second encoding mode 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.

[0138] Optionally, with the development of technology, the second encoding mode can further include other encoding modes, which are not limited in the present application.

[0139] S320, the first communication device decodes the data according to the first modulation and / or the first encoding mode.

[0140] 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 reduce the detection overhead of detecting the control information while providing reliable transmission of the data.

[0141] Figure 4 is an example of a schematic flow chart of the specific example of information transmission of the present application.

[0142] S410, the second communication device encodes the control information according to a second modulation mode and / or a second encoding mode.

[0143] 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 mode 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.

[0144] In the embodiments of the present application, for the convenience of description, modulation and encoding are collectively referred to as encoding, and demodulation and decoding are collectively referred to as decoding.

[0145] For example, taking the control information as an example, assuming that the size of the control information is 5 bits, as a possible implementation manner, the control information can be directly encoded by reed muller (RM) code to generate 32-bit control information; as another possible implementation manner, the control information can be first encoded by cyclic redundancy check (CRC) code to generate 11-bit control information, and then the 11-bit control information is encoded by RM code to generate 32-bit control information; optionally, the control information can be repeatedly encoded, for example, through 3 times of repetition encoding to generate 15-bit control information; optionally, the control information can be encoded by CRC code and then polar code. The encoded control information can be modulated by a second modulation mode, such as quadrature phase keying modulation.

[0146] In the embodiments of the present application, the second communication device also needs to encode the data according to a first modulation mode and / or a first encoding mode to obtain processed data. The first modulation mode and the first encoding mode can be the modulation mode and the encoding mode in the prior art, or other possible modulation mode and encoding mode, which are not limited in the present application.

[0147] S420, the second communication device maps the control information and the data on the first physical shared channel.

[0148] The control information can include control information processed by the second modulation and / or the second encoding mode, and the data can include data encoded by the first modulation mode and / or the first encoding mode.

[0149] Specifically, the control information processed by the second modulation method and / or the second encoding method can be represented as A, the code length is represented as |A|, and in the encoding method of quadrature phase shift keying (QPSK), the number of required REs is B = ceil (A| / 2), where ceil represents rounding up. Define the first symbol in the first physical shared channel as the first symbol without carrying DM-RS, define the resource unit RE without carrying PT-RS as the first RE, and determine the number of first REs E.

[0150] On the first symbol, when the number of REs required for mapping control information B is greater than or equal to the number of first REs E on the first symbol, the first frequency domain mapping interval is set, for example, to 1; when the number of REs required for mapping control information B is less than the number of first REs E on the first symbol, the first frequency domain mapping interval d = floor (E / B), where floor represents rounding down.

[0151] Wherein, when the first symbol has no remaining first RE, and there is still part of the control information that has not been mapped, the remaining control information is mapped on the second symbol, which is the adjacent symbol of the first symbol without carrying control information and DM-RS. The determination of the frequency domain mapping interval is different from the above method, B is the number of REs of control information that have not been mapped, that is, B is taken as an updateable parameter, and the above rules are still used to determine the second frequency domain mapping interval.

[0152] It should be understood that the second symbol can include multiple symbols, that is, the second symbol is a general term for a class of symbols, and does not refer to a specific symbol. When the number of REs required for control information is large, multiple second symbols can also be included, so that the second frequency domain interval in each second symbol can be the same or different, which is not limited by the present application.

[0153] It should also be understood that the first frequency domain mapping interval and the second frequency domain mapping interval can be the same or different, which is not limited by the present application

[0154] For ease of understanding, the following will be combined with Figures 5 to 11 The application of the above rules in different cases is described in detail.

[0155] Case 1

[0156] As shown in Figure 5 Taking the downlink transmission of semi-persistent scheduling (SPS) as an example, the number of symbols occupied by the physical downlink control channel (PDCCH) is 2, that is Figure 5The first physical shared channel, for example, a physical downlink shared channel (PDSCH), adopts mapping type A, only one DM-RS, and the DM-RS is type 1, located on symbol 2, the antenna port number for transmitting SPS data is 1000, the time domain resource corresponding to the first physical shared channel is symbol 2-13, and the frequency domain resource corresponding to the first physical shared channel is 3 resource blocks (RBs), that is, each symbol contains 36 REs, numbered from 0-35, and the figure does not include the PT-RS signal. Assuming that the control information contains 5 bits of MCS, after being processed by the second modulation method of quadrature phase modulation and the second encoding method of (32, K) Reed-Muller encoding, the required number of REs B is 16. According to the above rules, the PDSCH occupies symbols 2-13, and it can be preliminarily assumed that the first symbol is symbol 2. In Figure 5 , symbol 2 is used to carry the DM-RS signal, so there is no first RE in symbol 2, and the first symbol is determined to be symbol 3. Symbol 3 is not occupied by DM-RS, and no reference signal is mapped on the symbol, so the first RE on the symbol is all the REs on the symbol, that is, the number of first REs is 36. Through calculation, the number of REs B required for the control information is 16, because 16 is less than 36, so the first frequency domain mapping interval is determined to be d = floor(36 / 16) = 2, that is, on symbol 3, every 2 REs map an RE required for control information. As shown in Figure 5 , the RE with number 0 in symbol 3 can be mapped, and the MCS control information is mapped on the REs with numbers 0, 2, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 28, 30 in symbol 3 of the PDSCH.

[0157] After completing the mapping of the control information to the first physical shared channel, the SPS data is mapped to the second RE of the first physical shared channel in a rate matching manner. Exemplarily, taking Figure 5 as an example, the second RE is the RE on symbol 2-13 that does not carry control information and DM-RS. Because Figure 5Since the antenna port number is 1000, the SPS data is mapped to the first physical shared channel starting from symbol 2, in the order of frequency domain first, then time domain. Specifically, the SPS data is first mapped to REs numbered 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, and 35 in symbol 2, and then to REs numbered 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 32, 33, 34, and 35 in symbol 3. Afterward, unmapped SPS data will be mapped to the first physical shared channel in the order of frequency domain first, then time domain. For example, after being mapped to REs numbered 0-35 in symbol 4, it will continue to be mapped to REs numbered 0-35 in symbol 6, until all SPS data is mapped. It is important to note that when using high code division multiplexing (CDM) group numbers or high antenna port numbers for information transmission, the second RE does not include the RE corresponding to the DM-RS with low CDM group numbers or low antenna port numbers. For example, if Figure 5 The first physical shared channel uses antenna ports 1002 / 1003 to transmit data. Therefore, the corresponding DM-RS locations are REs numbered 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 29, 31, 33, and 35 on symbol 2. At this time, the REs occupied by the DM-RS for antenna ports 1000 and 1001 on symbol 2, namely 0, 2, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 28, 30, 32, and 34, are not used to carry any data. In this scenario, only symbols 3-13 in the first physical shared channel have a second RE. Therefore, SPS data will be multiplexed into the first physical shared channel starting from symbol 3, following a frequency domain-first, time domain-second order.

[0158] Scenario 2

[0159] When the number of REs (B) required for control information is large, it may be necessary to map the control information data onto a second symbol on the first physical shared channel. This second symbol is an adjacent symbol of the first symbol that does not carry control information or DM-RS. Using the parameters of Scenario 1 as an example, such as... Figure 6 As shown, with Figure 5Different from the case 1, assume that the control information contains 5 bits of MCS, the second modulation is QPSK, and the second coding is 6 bits of CRC and 1 / 8 polar code. The number of REs B required by the coded control information is 44. According to the rule described in the case 1, the first symbol is determined to be symbol 3. Because the first symbol, i.e., symbol 3, does not contain any reference signal, the number of first REs in symbol 3 is 36. Because the number of first REs in symbol 3 is less than the number of REs B required by the control information, the first frequency domain interval is 1, i.e., one RE required by the control information is mapped on each RE in symbol 3. When symbol 3 is mapped completely, the number of REs of the control information that are 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 the adjacent symbol of the first symbol that does not carry the control information and DM-RS, the second symbol is determined to be Figure 6 symbol 4, and the number of first REs in symbol 4 is 36. Because 8 is less than 36, the second frequency domain mapping interval is determined to be d = floor(36 / 8) = 4, i.e., one RE required by the control information is mapped on every 4 REs in symbol 4. As shown in FIG. 4, the control information can be mapped from the RE numbered 0, so the MCS control information is mapped on the REs numbered 0, 4, 8, 12, 16, 20, 24, and 28 in symbol 4 of the first physical shared channel. Figure 6

[0160] After the mapping of the control information to the first physical shared channel is completed, the SPS data is mapped to the second REs of the first physical shared channel in a rate matching manner. Take Figure 6 for example, the second REs are the REs in symbols 2-13 that do not carry the control information and DM-RS. Therefore, the SPS data is mapped to the first physical shared channel in the order of frequency domain first and time domain second from symbol 2, and the specific process can be referred to the case 1. It needs to be noted that when the CDM group number or the high antenna port number is used for information transmission, the second REs do not include the REs corresponding to the DM-RS of the low CDM group number or the low antenna port number. For example, if the first physical shared channel in the case Figure 5 uses the antenna ports 1002 / 1003 to transmit data, the REs occupied by the DM-RS in symbol 2 are 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 29, 31, 33, and 35. At this time, the REs occupied by the DM-RS for the antenna ports 1000 and 1001 in symbol 2, i.e., 0, 2, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 28, 30, 32, and 34, are not used to carry any data. In this case, Figure 6 ​In the first physical shared channel, only symbols 4-13 have the second REs, so the SPS data will be multiplexed into the PSCH in the order of frequency domain first and time domain second from symbol 4. Exemplarily, the SPS data is first mapped to the REs numbered 1, 2, 3, 5, 6, 7, 9, 10, 11, 13, 14, 15, 17, 18, 19, 21, 22, 23, 25, 26, 27, 29, 30, 31, 32, 33, 34, 35 in symbol 4, and the data not mapped by the SPS data is then mapped to the second REs of symbols 5-13, which will not be described herein again.

[0161] Case 3

[0162] In this case, a scenario in which the first physical shared channel is configured with additional DM-RS is considered. As shown in the figure, taking the downlink transmission of the semi-persistent scheduling SPS as an example, the number of symbols occupied by the control channel PDCCH is 2, i.e. symbol 0 and symbol 1 in Figure 7 , the PDSCH adopts the mapping mode of mapping type A, has two DM-RS, is located on symbol 2 and symbol 11, the antenna port number for transmitting the SPS data is 1000, the time domain resource corresponding to the PDSCH is symbol 2-13, the frequency domain resource corresponding to the PDSCH is 3 RBs, i.e. each symbol contains 36 REs, numbered from 0-35, and the figure does not include the PT-RS signal. Figure 7 For the convenience of comparison with case 2, it is assumed that the control information processed by the second modulation and / or the second encoding mode needs to occupy 44 REs. One possible mapping mode is to determine the first symbol as symbol 3 adjacent to symbol 2 where the front DM-RS is located, and map the control information according to a first frequency domain interval equal to 1 RE. When symbol 3 is mapped, the number of data not mapped by the control information is 8, so the control information needs to be mapped to the second symbol. According to the rule that the second symbol is the symbol adjacent to the first symbol which does not carry the control information and the DM-RS, the second symbol is determined as

[0163] in symbol 4, and the number of first REs in symbol 4 is 36, so the second frequency domain mapping interval is determined as d=floor(36 / 8)=4, i.e. every 4 REs in symbol 4 map an RE required by the control information. In another possible mapping mode, the number of first symbols can be multiple, such as Figure 6 Figure 7 ​As shown, it is determined that the first symbol is symbol 3 adjacent to symbol 2 where the pre-DM-RS is located and symbol 10 (or 12) adjacent to symbol 11 where the post-DM-RS is located, and the number of first REs in symbol 10 (or 12) is 36, thus the first frequency domain mapping interval is determined as d = floor(36 / 8) = 4, i.e. every 4 REs in symbol 10 (or 12) are mapped with an RE required for control information, thus the REs required for control information can be mapped in symbol 3 and symbol 10 (or 12) according to the first frequency domain mapping interval of 1 RE and the first frequency domain mapping interval of 4 REs respectively.

[0164] Optionally, the symbol order of the symbols where the control information is mapped to the first physical shared channel can also be determined according to the symbol ordering information, for example, for improving decoding reliability, the symbols can be ordered in a manner that the symbol sequence is adjacent to one or more symbols carrying DM-RS (e.g. the symbol order is 3, 10, 12, 4, 5, 6, 7, 8, 9, 13), or for reducing decoding delay, the symbols can be ordered in a sequence (e.g. the symbol order is 3, 4, 5, 6, 7, 8, 9, 10, 12, 13), which are not limited in the present application. For example, when the symbol order is 3, 10, 12, 4, 5, 6, 7, 8, 9, 13, and the symbols carrying DM-RS are symbol 2 and symbol 11, the first symbols are symbol 3, 10, 12, and the second symbols are symbol 4, 5, 6, 7, 8, 9, 13, the control information is first mapped to symbol 3 with the first frequency domain mapping interval of 1 RE, if there is control information that has not been mapped, the control information that has not been mapped is continued to be mapped to symbol 10 according to the first frequency domain mapping interval. When the mapping of the control information to symbol 10 is completed, if there is control information that has not been mapped, the control information that has not been mapped is continued to be mapped to symbol 12 until all the control information is mapped to the first physical shared channel.

[0165] Case 4

[0166] In this case, the scenario where PT-RS is contained in the first physical shared channel is considered. When PT-RS is configured in the first physical shared channel, the distribution of PT-RS needs to be determined first, i.e. the time domain density of PT-RS and the frequency domain density of PT-RS are determined first, wherein the frequency domain density of PT-RS is related to the number of allocated RBs, and the time domain density of PT-RS is determined according to the MCS.

[0167] In some embodiments, when PT-RS is contained in the first physical shared channel, the distribution of PT-RS needs to be determined first, i.e. the time domain density of PT-RS and the number of RBs allocated to the corresponding physical shared channel are determined first. Wherein the relationship between the time domain density of PT-RS and the MCS parameter is shown in Table 1, and the relationship between the frequency domain density of PT-RS and the bandwidth is shown in Table 2.

[0168] Table 1 Relationship table of time-domain density of PT-RS and MCS parameter

[0169]

[0170]

[0171] Table 2 Relationship table of frequency-domain density of PT-RS and bandwidth

[0172] Bandwidth parameter Frequency domain density (K PT-RS )]]> N RB <N RB0 ]]> —— N RB0 ≤N RB <N RB1 ]]> 2

[00100] N RB1 ≤N RB ]]> 4

[0173] Wherein, the table ptrs-MCS1 to ptrs-MCS4 and N RB0 and N RB1 are configured by the sending end through RRC signaling (for example, the time-domain density timeDensity and the frequency-domain density freqnecyDensity parameters in the 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 map a PT-RS symbol; the unit of the frequency-domain density is symbol, when the frequency-domain density is 4, it means that every 4 RBs in the time domain map a PT-RS symbol. Wherein, part of the fields of the PT-RS configuration can be as follows:

[0174] Specifically, the second configuration information includes or itself is the above-mentioned PT-RS downlink configuration ptrs-downlinkConfig, the present application can add a new field timeDensitypreset in the field, used to indicate the time-domain density of the PT-RS symbol, the sending end device (i.e. the second communication device) sends the second configuration information to the receiving end device (i.e. the first communication device), the receiving end device can determine the time-domain interval and the frequency-domain interval of the PT-RS symbol according to the time-domain density timeDensitypreset parameter and the frequency-domain density freqnecyDensity parameter in the first configuration information, in order to quickly and accurately determine the position distribution of the PT-RS symbol.

[0175] The starting is determined according to the following formula (1):

[0176]

[0177] Wherein, n RNTI represents the RNTI scrambled when the DCI schedules data, N RB represents the total number of RBs corresponding to the physical shared channel resource.

[0178] The position k of the PT-RS in the subcarriers in the RB is determined according to the following formula (2):

[0179]

[0180] wherein i={0, 1, 2, …}, denotes the number of subcarriers in one RB.

[0181] k RE ref The values of k are shown in Table 3:

[0182]

[0183] wherein the offsets 00 to 11 are determined according to RRC signaling (for example, the resource element offset in the PT-RS downlink configuration ptrs-downlinkConfig).

[0184] In the present application, the number of RBs of semi-static scheduling is indicated by the activation control information, and thus can be considered as a known parameter. Since the MCS of each SPS transmission is indicated by the control information in the first physical shared channel, the MCS is an unknown parameter for the first communication device (the receiving end). If the above-mentioned technology is continued to be used, the first communication device (the receiving end) cannot parse the PT-RS.

[0185] Therefore, in this case, the second communication device (the sending end) in the embodiment of the present application can determine the distribution of the PT-RS on the first physical shared channel according to the preset time domain density of the PT-RS, and send the preset time domain density of the PT-RS to the first communication device (the receiving end), so as to ensure that the first communication device (the receiving end) can normally parse the PT-RS.

[0186] S430, the second communication device determines the preset time domain density of the phase tracking reference signal PT-RS of the first physical shared channel, and configures the preset time domain density of the PT-RS through the second configuration information. And determine the position of the PT-RS according to the preset time domain density of the PT-RS.

[0187] S440, the first communication device receives the second configuration information from the second communication device, and 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.

[0188] 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 parse the PT-RS.

[0189] wherein the preset time domain density of the PT-RS is different from the threshold value set based on the MCS

[0190] In this embodiment, taking the downlink transmission of semi-persistent scheduling (SPS) as an example, the physical shared channel includes a total of 3 RBs, with corresponding subcarrier numbers from 0 to 35. The PDCCH occupies symbols 0 and 1, and the physical shared channel occupies symbols 2 to 13. The frequency domain density K PT-RS =2, time-domain density L PT-RS =2, using offset 00, DM-RS port number is 0, DM-RS configuration type is 1, therefore the starting resource unit in the RB where PT-RS is located is determined. If n RNTI =0, the starting value of PT-RS is determined according to formula (1). It is 0.

[0191] Therefore, as Figure 8 As shown, it can be determined that the PT-RS is located on the 0th subcarrier of the 0th and 2nd RBs, respectively, i.e., on the 0th and 24th subcarriers. Furthermore, because the time-domain density L... PT-RS =2, meaning that 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.

[0192] In this application, PT-RS are distributed on REs numbered 0 and 24 on symbols 4, 6, 8, 10, and 12 of the first physical shared channel.

[0193] Assuming the second modulation mode is quadrature phase modulation, and the second encoding mode is 6-bit CRC and 1 / 8 polar code, the RE required by the encoded control information is 44. According to the above rule, the first symbol is determined to be symbol 3, and according to the distribution mode of the time domain density and the frequency domain density of the PT-RS, it can be determined that no PT-RS reference signal is mapped on symbol 3, and thus the number of first REs on symbol 3 is determined to be 36. According to the method described in scenario 1, the first frequency domain mapping interval is determined to be 1, that is, on symbol 3, every 1 RE is mapped with an RE required by control information. When symbol 3 is mapped, the number of REs not mapped with control information is 8, and according to the rule that the second symbol is the adjacent symbol of the first physical shared channel that does not carry control information and DM-RS, the second symbol is determined to be symbol 4. Since 2 PT-RS signals are mapped on symbol 4, the number of first REs on symbol 4 is 34. Since 8 is less than 34, the second frequency domain mapping interval is determined to be d = floor(34 / 8) = 4, that is, on symbol 4, every 4 REs are mapped with an RE required by control information. Since the RE numbered 0 is occupied by PT-RS, the REs mapped with control information can start from the RE numbered 1, and the MCS control information is mapped on the REs numbered 1, 5, 9, 13, 17, 21, 25, 29 on symbol 4 of the PDSCH.

[0194] It should be noted that when the control information is mapped in the above manner, the mapped REs can coincide with the REs occupied by PT-RS, and in this case, the REs mapped with control information can skip the RE. For example, on the above RE numbered 0, the control information coincides with the PT-RS, and thus when mapping, the control information can start from the RE numbered 1, and in this case, the REs mapped with control information can be shifted by 1 RE in total, and the control information is mapped on the REs numbered 1, 5, 9, 13, 17, 21, 25, 29 on symbol 4 of the first physical shared channel in the PDSCH; or the control information coinciding with the PT-RS can be mapped by delaying 1 RE, without affecting the mapping positions of other REs of the control information. Figure 8 Figure 8

[0195] In addition, when the number of REs required by the control information exceeds the number of first REs on the symbol, according to the above rule, the control information is mapped to the next symbol, for example, symbol 5. ​​

[0196] Case 5

[0197] In the current NR standard, one SPS can only schedule one physical shared channel transmission SPS data (also referred to as a slot or a transport block TB, that is, one physical shared channel can also be represented as one slot or one TB, for ease of description, the present application uniformly adopts physical shared channel to introduce) each time, but due to the large size of one XR video frame, multiple SPSs are usually needed to transmit one XR video frame. Based on this, in the embodiments of the present application, the control information is applied to multiple SPSs for information transmission.

[0198] In the embodiments of the present application, the association relationship of multiple SPSs can be set, for example, an SPS configuration addition modification list indication flag sps-configToAddModListFlag is added in the bandwidth part (bandwidth part, BWP) downlink dedicated information BWP-DownlinkDedicated information element, which is used to indicate the association relationship of SPSs in the SPS configuration addition 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 multiple SPS processes in the SPS configuration addition modification list sps-configToAddModList have association relationship, otherwise when the SPS configuration addition modification list indication flag sps-configToAddModListFlag takes the second value, such as '0', there is no association relationship. If the SPSs in the SPS configuration addition modification list sps-configToAddModList have association relationship, the control information in the first physical shared channel of any SPS in the SPS configuration addition modification list sps-configToAddModList takes effect on the data transmitted by all related SPSs in the SPS configuration addition modification list sps-configToAddModList. Exemplarily, the SPS configuration addition modification list indication flag sps-configToAddModListFlag (bold and italic) in the part field of the BWP configuration can be as follows:

[0199]

[0200] Specifically, the first configuration information includes the aforementioned downlink-dedicated information element (BWP). This application may add the field `sps-configToAddModListFlag-r18` (bold italic) to this field to indicate the SPS associations in the SPS configuration modification list `sps-configToAddModList`. Other parameters in the first configuration information can be referenced from the current 3G Partner Program (3GPP). rd The protocol is defined in Technical Specification (TS) 38.331 of the 3GPP (3GPP Partnership Project) standard. The transmitting device (i.e., the second communication device) sends the first configuration information to the receiving device (i.e., the first communication device). The receiving device can determine the correlation between the SPSs in the SPS configuration add / modify list (sps-configToAddModList) based on the sps-configToAddModList parameter in the first configuration information. By setting correlation relationships between multiple SPSs in the list, control information can be applied to multiple SPSs simultaneously, helping to save signaling overhead and reduce device power consumption.

[0201] like Figure 9 As shown, in time-division duplex (TDD) with a slot allocation of 8 downlink (DL) and 2 uplink (UL) slots per 10 slots, and a subcarrier spacing (SCS) of 15kHz, assuming RRC is configured with 4 SPSs to transmit XR video services, and each SPS has a transmission period of 10ms, these 4 SPSs can be associated. For example, when the SPS configuration add / modify list indicator flag sps-configToAddModListFlag is set to the first value, the 4 SPSs are associated. In this case, the first physical shared channel can be transmitted in the SPS process with the lowest sps-config index in the sps-configToAddModList. For example, if the sps-configToAddModList contains 4 SPSs, corresponding to SPS-config indices 0-3 (referred to as SPS 0-3), as follows... Figure 9As shown (the legend does not include the PT-RS signal), it is indicated that the SPS corresponding to the lowest sps-config Index, i.e., SPS0, is used to transmit the first physical shared channel, and the control information of the first physical shared channel is valid for all SPSs in the SPS configuration addition and modification list sps-configToAddModList, i.e., SPS0-3. It should be understood that when the SPS configuration addition and modification list indication flag sps-configToAddModListFlag takes the first value, other SPSs with sps-config Index can also be indicated to be used to transmit the first physical shared channel, which is not limited in the present application.

[0202] Case 6

[0203] In this case, the scenario of applying control information to N physical shared channels of one SPS for information transmission is considered.

[0204] In the embodiments of the present application, indication information can be added in the first configuration information to indicate the number of physical shared channels to which the control information is applied. These physical shared channels can be adjacent physical shared channels or non-adjacent physical shared channels. One possible way is to add a time slot number nrofSlot indicator in the SPS configuration SPS-config signaling, which can take values such as 2-8, to indicate the number of physical shared channels scheduled by SPS. At this time, the nrofSlot indicator (bold and italic) in the part of the SPS configuration field can be as follows:

[0205]

[0206]

[0207] Specifically, the first configuration information includes or is the above-mentioned SPS configuration SPS-config signaling, and the present application can add a physical shared channel number indication information field nrofSlot in the field to indicate the number of physical shared channels scheduled by SPS, i.e., the number of physical shared channels transmitted in each SPS transmission opportunity. Other parameters in the first configuration information can refer to the TS38.331 protocol in the current 3GPP standard. The sending end device (i.e., the second communication apparatus) sends the first configuration information to the receiving end device (i.e., the first communication apparatus), and the receiving end device can determine the number of physical shared channels to which the control information can be applied according to the nrofSlot parameter in the first configuration information. By this method, the receiving end device can know the number of physical shared channels to be received in each SPS transmission opportunity, which helps to improve the flexibility of transmission.

[0208] For example,Figure 10 As shown in the figure (the figure does not include PT-RS signals), assuming that in the case of nrofSlot = 4, the SPS transmission starting from D05 should transmit data at D05-U00, but U00 is used for carrying uplink data, so the non-adjacent time slots are D05-D07 and D10. Alternatively, as shown in the figure (the figure does not include PT-RS signals), assuming that in the case of nrofSlot = 4, the SPS transmission starting from D05 should transmit data at D05-U00, but U00 is used for carrying uplink data, so the SPS transmission time slots are D05-D07, i.e., because the SPS transmission time slots conflict with the uplink time slots, the time slots in which the SPS transmission should be transmitted at U00 are no longer used for SPS data transmission, and the SPS no longer postpones or compensates for the SPS transmission time slots. Figure 10 As shown in the figure (the figure does not include PT-RS signals), assuming that in the case of nrofSlot = 4, the SPS transmission starting from D05 should transmit data at D05-U00, but U00 is used for carrying uplink data, so the SPS transmission time slots are D05-D07, i.e., because the SPS transmission time slots conflict with the uplink time slots, the time slots in which the SPS transmission should be transmitted at U00 are no longer used for SPS data transmission, and the SPS no longer postpones or compensates for the SPS transmission time slots.

[0209] Optionally, control information can be added to the signaling carried by the PDSCH, for example, the selfContainedControl IE signaling in the sps-config in the RRC signaling, when the signaling is empty, the mapping method shown in the embodiment is not started. Alternatively, the selfContainedControl IE signaling can contain one or more configuration information, such as MCS, nrofTB, etc. At this time, the selfContainedControl IE signaling (bold and italic) in the part of the SPS configuration field can be as follows:

[0210]

[0211]

[0212] Specifically, the first configuration information includes or is the SPS configuration SPS-config signaling described above. The application can add a selfContainedControl IE field in the field to indicate that the corresponding SPS contains the first physical shared channel. Further, the MCS field can be added to indicate whether the control information in the first physical shared channel contains the first modulation mode and / or the first encoding mode, and the nrofTB field can be added to indicate whether the control information in the first physical shared channel contains the physical shared channel number indication information. It should be noted that the size of the nrofTB field is a pre-configured parameter known to the sending and receiving end devices. Through the nrofTB content in the control information in the first physical channel, the sending end device can flexibly indicate the number of physical shared channels transmitted in each SPS transmission opportunity. It should be noted that the number of physical shared channels can include the first physical shared channel. The sending end device (i.e., the second communication device) sends the first configuration information to the receiving end device (i.e., the first communication device), and the receiving end device can determine the content of the control information in the first physical shared channel according to the selfContainedControl IE parameter in the first configuration information, and determine the first modulation mode and / or the first encoding mode of the data in the SPS transmission according to the MCS parameter in the control information, and determine the number of physical shared channels transmitted in each SPS transmission opportunity according to the nrofTB parameter in the control information. Other parameters in the first configuration information can refer 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. Carrying the control information in the first configuration information helps to reduce the communication delay and save the signaling overhead.

[0213] Exemplarily, the selfContainedControl IE indicates two parameters of MCS and nrofTB. The application does not limit the specific content indicated by the selfContainedControl IE.

[0214] Exemplarily, the indication information can be multiplexed into the first physical shared channel of each SPS transmission to indicate that the control information will take effect on the SPS data this time or the next multiple times.

[0215] Specifically, by adding the nrofTBs signaling in the first configuration information, one SPS can transmit multiple physical shared channels each time. For example, when nrofTBs = n4, i.e., N = 4, one SPS can transmit 4 physical shared channels each time. Figure 10The figure legend does not include PT-RS signals) shows a scenario of four physical shared channels in one SPS transmission with a SPS transmission period of 10 ms and a SCS of 15 kHz, where D00-D03 is one SPS transmission occasion and D10-D13 is the next adjacent SPS transmission occasion. Each transmission occasion contains one first physical shared channel and three physical shared channels. Exemplarily, in order to reduce the decoding latency, the first TB of each SPS transmission can carry the first physical shared channel, and the control information in the first physical shared channel will be valid for the SPS data of this time, i.e., the control information such as MCS in the first physical shared channel of D00 can be used to decode the SPS data in D00-D03. The data on D00, D01, D02 and D03 is valid.

[0216] It should be understood that in actual applications, the above-mentioned case 5 and case 6 can exist at the same time, so as to further reduce the overhead and save energy consumption.

[0217] For example, the control information can be applied to multiple physical shared channels of multiple SPS, and at this time the multiple physical shared channels can be adjacent physical shared channels, such as Figure 11 As shown in the figure legend (the figure legend does not include PT-RS signals), the SPS configuration addition modification list sps-configToAddModList contains SPS0 and SPS1, and the nrofTBs in the configuration of SPS0 and SPS1 is n2. D00 and D01 are data of one transmission occasion of SPS0, D10 and D11 are data of the next adjacent transmission occasion of SPS0, D02 and D03 are data of one transmission occasion of SPS1, and D12 and D13 are data of the next adjacent transmission occasion of SPS1. Exemplarily, the SPS configuration addition modification list sps-configToAddModList indicates that a first physical shared channel is carried in the SPS process with the lowest sps-config Index, such as D00. The control information carried by the first physical shared channel in D00 is valid for D00-D01 of SPS0 and D02-D03 of SPS1, and the control information carried by D10 is valid for 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, other SPSs with sps-config Index can also be indicated to transmit the first physical shared channel, which is not limited in the present application.

[0218] It is noted that the period of the first physical shared channel in the cases 1-6 is the same as the period of the one or more SPSs. That is, the first physical shared channel is carried by each of the one or more SPS transmissions, and the control information of the first physical shared channel, such as MCS, can be used for each of the one or more SPS transmission opportunities.

[0219] For example, the control information can also be applied to M physical shared channels of the one or more SPSs, where the M physical shared channels can be non-adjacent physical shared channels, for example, the M physical shared channels are an integer multiple of N physical shared channels of the one or more transmission periods of the SPS, i.e., M is an integer multiple of N, and the control information is applied to M / N transmission periods of the one or more SPSs. For example, Figure 10 As shown, one SPS transmits N=4 physical shared channels, where D00 to D03 are data of one transmission opportunity of SPS0, and D10 to D13 are data of the next adjacent transmission opportunity of SPS0. When M=8, assuming the first physical shared channel is located at D00, the control information carried by the first physical shared channel can be applied to D00 to D03 of the current transmission period of SPS0 and D10 to D13 of the next adjacent transmission period of SPS0. Specifically, one implementation is to carry a period parameter (e.g., sps-selfContainedControl IE Period in SPS-config) in the first configuration information, for example, the period parameter is 2, which means that the control information is applied to the information transmission of two transmission periods including the current transmission; another possible implementation is to configure the number of applications in the first configuration information, for example, the number of applications 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-selfContainedControl IE Period (bold and italic) in the part of the SPS configuration can be as follows:

[0220]

[0221]

[0222] Specifically, the first configuration information includes or is the SPS configuration SPS-config signaling described above, and the application can add a field sps-selfContainedControlIEPeriod in the field to indicate the number of transmission periods in which the control information takes effect, which can also be understood as the periodic interval of the first physical shared channel. Other parameters in the first configuration information can refer to the TS38.331 protocol in the current 3GPP standard. The sending end device (i.e., the second communication device) sends the first configuration information to the receiving end device (i.e., the first communication device), and the receiving end device can determine the number of transmission periods in which the control information takes effect according to the sps-selfContainedControlIEPeriod parameter in the first configuration information, that is, the control information takes effect on the physical shared channel of the next several transmission periods. Through this method, the receiving end device can identify the number of transmission periods in which the control information takes effect, and further, the control information and the number of transmission periods to which the control information applies are carried in the first configuration information, which helps to improve the transmission flexibility.

[0223] Exemplarily, the sps-selfContainedControlIEPeriod indicates four parameters n1 to n4, and the application does not limit the values and quantities of the parameters indicated by the sps-selfContainedControlIEPeriod. Alternatively, the sps-selfContainedControlIEPeriod can also be put into an independent control selfContainedControlIE signaling, as shown below:

[0224]

[0225]

[0226] S450, the first communication device receives control information and data from the second communication device, the control information and the data are multiplexed on the first physical shared channel, and the control information is used to indicate a first modulation mode and / or a first encoding mode of the data.

[0227] The present application does not limit the order of mapping control information and data. For example, control information can be mapped first, and then data is mapped, in which case data is mapped on the second RE of the first physical shared channel, which is a resource unit of the first physical shared channel that does not carry control information, DM-RS and PT-RS. For another example, data is mapped first, and then control information is mapped, i.e., in a "punching" manner, control information is mapped to the resources of the physical shared channel, in which case control information can replace part of the data. Specifically, SPS data is first mapped to the second RE of the first physical shared channel in the order of frequency domain first and time domain second by using rate matching, and the second RE is a resource unit of the first physical shared channel that does not carry control information, 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, control information is mapped to the first RE of the physical channel. Since the first RE includes the second RE at this time, i.e., the first RE and the second RE correspond to the same RE number in the same symbol, control information can replace the data mapped on the same RE during the process of mapping control information to the first RE. For example, the above Figure 5 It can also be understood that SPS data is mapped to multiple symbols of PDSCH in the order of frequency domain first and time domain second from symbol 2 of the first physical shared channel. After the mapping of SPS data is completed, the first symbol carrying control information is determined to be symbol 3, and the first frequency domain mapping interval is d = floor(36 / 16) = 2, i.e., every 2 REs on symbol 3 map an RE required for control information. Therefore, the final result is that control information is mapped on the REs with numbers 0, 2, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 28, 30 of symbol 3 of the first physical shared channel, and replaces the data on these REs.

[0228] In the present application, "indication" can be explicitly and / or implicitly indicated. For example, implicit indication can be based on the position and / or resource for transmission; explicit indication can be based on one or more parameters, and / or one or more indexes, and / or one or more bit patterns it represents. In addition, "indication" can also mean "contain", for example, control information indicating the information of the modulation mode and / or the coding mode of the semi-static transmission can also be expressed as: control information contains the information of the modulation mode and / or the coding mode of the semi-static transmission.

[0229] S460, the first communication device receives first configuration information from the second communication device, the first configuration information being used to configure the semi-static transmission, and the physical shared channel carrying the semi-static transmission including the first physical shared channel.

[0230] The first configuration information is further used for configuring N physical shared channels of the semi-static transmission, the N physical shared channels including the first physical shared channel. For example, the N physical shared channels can correspond to the physical shared channels of one SPS, i.e., the period of the control information is the same as the period of the SPS.

[0231] In another implementation, the period of the control information is different from the period of the SPS. For example, the first configuration information is further used for indicating that the control information is applied to M physical shared channels corresponding to the data of the semi-static transmission, M being a positive integer multiple of N, i.e., the control information is applied to multiple periods of the SPS. For example, as shown in FIG. 6, the transmission period of one SPS is 10 ms, and includes N=4 physical shared channels. Among them, D00 includes the first physical shared channel, and the control information of the first physical shared channel is valid for M=8 physical shared channels, or in other words, the transmission period of the control information is twice the transmission period of the SPS, i.e., 20 ms. The M physical shared channels can correspond to the physical shared channels of two transmission periods of one SPS. Among them, 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. Figure 11

[0232] Optionally, the first configuration information is further used for indicating symbol ordering information of the symbol to which the control information is mapped. For example, the symbol ordering information corresponds to the symbol order in the above-mentioned case 3. Among them, the symbol ordering information is ordered or sequenced according to the proximity of one or more DM-RS.

[0233] Optionally, the first configuration information is further used for indicating one or more TBs of the semi-static transmission to which the control information is applied. For example, the indication information indicating the number of TBs to which the control information is applied can be added in the first configuration information, as described in the above-mentioned case 6. Among them, the transmission blocks can be adjacent transmission blocks or non-adjacent transmission blocks.

[0234] The first configuration information is further used for indicating a second modulation mode and / or a second coding mode of the control information. In this way, the first communication device can 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.

[0235] S470, the first communication device decodes the data according to the first modulation and / or the first coding mode.

[0236] 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 reduce the detection overhead of detecting the control information while providing reliable transmission of the data.

[0237] ​It should be noted that the above scheme takes the SPS scenario as an example to introduce the technical scheme of the present application, but it should not have any limitation on the application scenarios of the present application.

[0238] For example, the technical scheme of the present application can also be applied to the initial transmission and retransmission scenarios of the dynamic scheduling scenario. Taking the downlink scenario as an example, the first configuration information can be added to the PDSCH configuration PDSCH-CONFIG, such as the independent control selfContainedControl IE signaling. The first configuration information can also include multiple configuration information, such as MCS, HARQ process identification ID, and the like. If the first configuration information is configured, the control information can be mapped into the first physical shared channel PDSCH resource corresponding to the DCI according to the above method. When the receiving end decodes the DCI, the control information contained in the DCI is ignored, or the DCI does not contain the configuration information contained in the first configuration information, but obtains the control information from the PDSCH. Specifically, the information such as MCS and HARQ process ID is concatenated in a specified order (such as MCS first and HARQ ID later), and then CRC code and channel coding are attached, and then mapped onto the PDSCH resource according to the above method. At this time, the independent control selfContainedControl I signaling (bold and italic) in the part of the PDSCH configuration field can be as follows:

[0239]

[0240]

[0241] Specifically, the first configuration information comprises or is the SPS configuration SPS-config signaling described above, the first configuration information of the application adds a selfContainedControl IE field, and increases a field MCS in the field, which is used to indicate whether the control information in the first physical shared channel contains a first modulation mode and / or a first encoding mode; a field HARQ-ProcessesID can also be added, which is used to indicate whether the control information in the first physical shared channel contains HARQ process information; a field new data indicator (NDI) can also be added, which is used to indicate whether the control information in the first physical shared channel contains NDI information, and a field redundancy version (RV) is added, which is used to indicate whether the control information in the first physical shared channel contains RV information. It should be understood that the bit size of the above-mentioned fields is known in the 3GPP standard, and the bit size of each field is known to the sending end and receiving end devices. Taking the current 3GPP release 16 as an example, the MCS field is composed of 5 bits, the HARQ-processID is composed of 4 bits, etc., and the size of the information field may be updated with the change of the 3GPP version. Other parameters in the first configuration information can refer to the TS38.331 protocol in the current 3GPP standard. The sending end device (i.e., the second communication apparatus) sends the first configuration information to the receiving end device (i.e., the first communication apparatus), and the receiving end device can determine the content contained in the control information in the first physical shared channel according to the first configuration information, thereby determining the MCS parameter, the HARQ-ProcessesID parameter, the NDI parameter or the RV parameter of the SPS data. Further, carrying multiple control information about the data of the same physical shared channel in the first configuration information at the same time helps to reduce the communication delay and save the signaling overhead.

[0242] For example, the technical solution of the present application can also be applied to the retransmission scenario. A first configuration information (e.g., retransmission self-contained control RetransmissionSelfContainedControl IE signaling) can be added in PDSCH-Config. The first configuration information can include multiple configuration information, such as MCS, HARQ process ID, and the like. If the first configuration information is configured, the control signaling can be mapped into the PDSCH resource corresponding to the DCI according to the above method. When the receiving end decodes the DCI, the control information contained in the DCI can be ignored, and the control information can be obtained from the PDSCH. Specifically, the MCS and HARQ process ID and the like are concatenated in a specified order (e.g., MCS first and HARQ ID second), CRC code and channel coding are added, and then the above method is mapped into the PDSCH resource. Alternatively, when the receiving end knows the specific position of the retransmission time, the DCI can be selected not to be decoded, and the PDSCH data corresponding to the time slot is received, and the above control information is decoded from the PDSCH data.

[0243] In addition, the technical solution of the present application can also be applied to the SPS retransmission scenario. The specific mapping method can refer to the description in the above SPS scenario. The retransmission self-contained control retransmissionSelfContainedControl IE signaling can be added in SPS-Config (i.e., the first configuration information). The first configuration information can include multiple configuration information, such as MCS, HARQ process ID, and the like. If the first configuration information is configured, the control signaling can be mapped into the PDSCH resource corresponding to the DCI according to the above method. When the receiving end decodes the DCI, the control information contained in the DCI can be ignored, and the control information can be obtained from the PDSCH. Specifically, the MCS and HARQ process ID and the like are concatenated in a specified order (e.g., MCS first and HARQ ID second), CRC code and channel coding are added, and then the above method is mapped into the PDSCH resource. Alternatively, when the receiving end knows the specific position of the retransmission time, the DCI can be selected not to be decoded, and the PDSCH data corresponding to the time slot is received, and the above control information is decoded from the PDSCH data. Exemplarily, the retransmission self-contained control retransmissionSelfContainedControl IE signaling (bold and italic) in the part of the SPS configuration can be as follows:

[0244]

[0245] Specifically, the first configuration information includes or is the SPS configuration SPS-config signaling described above, and the application can add a field retransmissionSelfContainedControlIE in the field to indicate that the method can be applied to the retransmission scenario. Further, the MCS parameter, HARQ-ProcessesID parameter, NDI parameter, or RV parameter can be added in the retransmissionSelfContainedControlIE as described above, and the meanings of the respective parameters are described above. For brevity, they will not be described here. Other parameters in the first configuration information can refer to the TS38.331 protocol in the current 3GPP standard. The sending end device (i.e., the second communication apparatus) sends the first configuration information to the receiving end device (i.e., the first communication apparatus), and the receiving end device can apply the technical solution to the retransmission scenario according to the retransmissionSelfContainedControlIE parameter in the first configuration information. Specifically, after the retransmissionSelfContainedControlIE field is configured and the receiving end device determines that the current received data is retransmission data, the MCS parameter, HARQ-ProcessesID parameter, NDI parameter, or RV parameter of the control information in the first physical shared channel can be decoded to obtain the information indicated by the respective parameters to decode the data in the first physical shared channel. Carrying multiple control information about the data of the same physical shared channel in the first configuration information helps to reduce the communication delay and save the signaling overhead.

[0246] The technical solution provided by the application can also be applied to sidelink transmission. Specifically, the sidelink transmission can include CG transmission and SPS transmission, and the CG transmission and SPS transmission can refer to the introduction of the uplink transmission (i.e., CG transmission) and the downlink transmission (i.e., SPS transmission) described above, which will not be described here.

[0247] Optionally, in the sidelink transmission, the first physical shared channel can be a physical sidelink control channel (PSCCH), and the control information in the first physical shared channel can be any one of sidelink control information (SCI), such as MCS, or a combination of any multiple control signals, such as MCS and HARQ. The process of the above method in the sidelink transmission is basically similar to the process of the downlink transmission introduced in the present application. Those skilled in the art can know how to design the process of the sidelink transmission according to the example (the process of the method 400) of the downlink transmission of the present application, which will not be described here.

[0248] It should be understood that the size of the serial number of each process described above does not mean the order of execution, and the execution order of each process should be determined according to its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0249] It should also be understood that in various embodiments of the present application, the terms and / or descriptions of different embodiments are consistent and can be mutually referred to if there is no special description and no logical conflict, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0250] It can be understood that the method implemented by the communication device in the above embodiments of the present application can also be implemented by a component (such as a chip or a circuit) configurable in the communication device.

[0251] The information transmission device provided by the embodiments of the present application will be described in detail below. Figure 12 and Figure 13 The information transmission device provided by the embodiments of the present application will be described in detail below.

[0252] The embodiments of the present application can divide the functional modules of the transmitting end device or the receiving end device according to the above method examples. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated module can be realized in the form of hardware or in the form of a software functional module. It should be noted that the division of the modules in the embodiments of the present application is illustrative, and is only a logical function division. Actual implementation can have another division manner. The following will be described taking the division of each functional module corresponding to each function as an example.

[0253] Figure 12is an example schematic block diagram of the information transmission device 1200 provided in the present application. Any device involved in any of the method 300 and the method 400, such as the first communication apparatus and the second communication apparatus, etc. can be implemented by the information transmission device shown in the figure. Figure 12

[0254] It should be understood that the information transmission device 1200 can be an entity device, a component (for example, an integrated circuit, a chip, etc.) of an entity device, and a functional module in an entity device.

[0255] As shown in the figure, the information transmission device 1200 includes one or more processors 1210. Optionally, the processor 1210 can invoke an interface to implement the receiving and sending functions. The interface can be a logical interface or a physical interface, which is not limited. For example, the interface can be a transceiver circuit, an input / output interface, or an interface circuit. The transceiver circuit, the input / output interface, or the interface circuit for implementing the receiving and sending functions can be separate or integrated together. The transceiver circuit or the interface circuit described above can be used for reading and writing of codes / data, or the transceiver circuit or the interface circuit described above can be used for transmission or transfer of signals. Figure 12

[0256] Optionally, the interface can be implemented by a transceiver. Optionally, the information transmission device 1200 can further include a transceiver 1230. The transceiver 1230 can also be referred to as a transceiving unit, a transceiver, a transceiver circuit, etc., and is used to implement the transceiving function.

[0257] Optionally, the information transmission device 1200 can further include a memory 1220. The specific deployment position of the memory 1220 is not limited in the embodiments of the present application. The memory can be integrated in the processor, or can be independent of the processor. For the case that the information transmission device 1200 does not include the memory, the information transmission device 1200 has a processing function, and the memory can be deployed at other positions (for example, a cloud system).

[0258] The processor 1210, the memory 1220, and the transceiver 1230 communicate with each other through internal connection paths to transfer control and / or data signals.

[0259] It can be understood that although not shown, the information transmission device 1200 can further include other devices, such as an input device, an output device, a battery, etc.

[0260] ​​Optionally, in some embodiments, the memory 1220 can store execution instructions for performing the methods of the embodiments. The processor 1210 can execute the instructions stored in the memory 1220 to complete the steps of the method execution shown below in combination with other hardware (such as the transceiver 1230), and the specific working process and beneficial effects can refer to the description in the method embodiments above.

[0261] The method disclosed in the embodiments of the present application can be applied in the processor 1210 or implemented by the processor 1210. The processor 1210 can be an integrated circuit chip with a signal processing capability. In the implementation process, the steps of the method can be completed by the integrated logic circuits or the instructions in the form of software in the processor. The processor mentioned above can be a general processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. The disclosed methods, steps and logic block diagrams in the embodiments of the present application can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in combination with the embodiments of the present application can be directly embodied as a hardware code processor to execute, or be executed by a combination of hardware and software modules in the code processor. The software module can be located in a random access memory (RAM), a flash memory, a read-only memory (ROM), a programmable read-only memory or an electrically erasable programmable memory, a register, and other mature storage media in the art. The storage medium is located in the memory, and the processor reads the instructions in the memory in combination with the hardware to complete the steps of the above method.

[0262] It is understood that memory 1220 can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), which serves as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous linked dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0263] Figure 13 This is a schematic block diagram of the information transmission device 1300 provided in this application.

[0264] Optionally, the specific form of the information transmission device 1300 may be a general-purpose computer device or a chip in a general-purpose computer device; this application embodiment does not limit this. For example... Figure 13 As shown, the information transmission device includes a processing unit 1310 and a transceiver unit 1320.

[0265] Specifically, the information transmission device 1300 can be any of the devices involved in this application, and can perform the functions that the device can perform. It should be understood that the information transmission device 1300 can be a physical device, a component of a physical device (e.g., an integrated circuit, a chip, etc.), or a functional module in a physical device.

[0266] In one possible design, the information transmission device 1300 may be the first communication device in the above method embodiment, or it may be a chip used to implement the function of the first communication device in the above method embodiment.

[0267] As an example, the communication device is used to perform the above.Figure 4 The transceiver 1320 is configured to receive the control information and the data multiplexed in the first physical shared channel, and the processing unit 1310 is configured to perform S470.

[0268] For example, the transceiver is configured to receive control information and data multiplexed in a first physical shared channel, the control information indicating a first modulation mode and / or a first coding mode of the data.

[0269] The processing unit is configured to process the data according to the first modulation mode and / or the first coding mode.

[0270] Optionally, the transceiver is further configured to receive first configuration information, the first configuration information being used to configure a semi-static transmission, and a physical shared channel carrying the semi-static transmission including the first physical shared channel.

[0271] Optionally, the transceiver is further configured to receive second configuration information, the second configuration information being used to indicate a preset time-domain density of a phase tracking reference signal (PT-RS) of the first physical shared channel.

[0272] It should also be understood that, when the information transmission apparatus 1300 is the first communication device, the transceiver 1320 in the information transmission apparatus 1300 can be implemented through a communication interface (such as a transceiver or an input / output interface), and the processing unit 1310 in the information transmission apparatus 1300 can be implemented through at least one processor, which can correspond to, for example, Figure 11 the processor 1110 shown in the method embodiment.

[0273] Optionally, the information transmission apparatus 1300 can further include a storage unit, which can be used to store instructions or data, and the processing unit can invoke the instructions or data stored in the storage unit to implement corresponding operations.

[0274] It should be understood that the specific processes in which the units perform the above-mentioned corresponding steps have been described in detail in the above method embodiments, and thus will not be described here again for the sake of brevity.

[0275] In another possible design, the information transmission apparatus 1300 can be the second communication device in the above method embodiments, or can be a chip used to implement the functions of the second communication device in the above method embodiments.

[0276] As an example, the communication device is configured to perform the actions of the second communication device in the above Figure 4 The processing unit 1310 is configured to perform S410, S420, and S430, and the transceiver 1320 is configured to perform S440, S450, and S460.

[0277] For example, the processing unit is configured to encode data according to a first modulation and / or a first coding scheme; and the transceiver is configured to transmit control information and the data multiplexed in a first physical shared channel, the control information being used to indicate the first modulation scheme and / or the first coding scheme of the data.

[0278] Optionally, the transceiver is further configured to transmit first configuration information, the first configuration information being used to configure a semi-static transmission, and a physical shared channel carrying the semi-static transmission comprising the first physical shared channel.

[0279] Optionally, the transceiver is further configured to transmit second configuration information, the second configuration information being used to indicate a preset time-domain density of phase tracking reference signal (PT-RS) of the first physical shared channel.

[0280] It should also be understood that, when the information transmission apparatus 1300 is a second communication apparatus, the transceiver 1320 in the information transmission apparatus 1300 can be implemented through a communication interface (such as a transceiver or an input / output interface), for example, can correspond to the communication interface 1130 shown in Figure 11 The processing unit 1310 in the information transmission apparatus 1300 can be implemented through at least one processor, for example, can correspond to the processor 1110 shown in Figure 11 .

[0281] Optionally, the information transmission apparatus 1300 can further include a storage unit, which can be used to store instructions or data, and the processing unit can invoke the instructions or data stored in the storage unit to implement corresponding operations.

[0282] It should be understood that the specific processes in which the units perform the above-mentioned corresponding steps have been described in detail in the above-mentioned method embodiments, and for the sake of brevity, will not be repeated here.

[0283] In addition, in the present application, the information transmission apparatus 1300 is presented in the form of functional modules. The "module" here can refer to an application specific integrated circuit (ASIC), a circuit, a processor and a 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, those skilled in the art can think that the apparatus 1300 can adopt the form shown in Figure 13 The processing unit 1310 can be implemented through the processor 1110 shown in Figure 11 Optionally, if the computer device shown in Figure 11 includes a memory 1130, the processing unit 1310 can be implemented through the processor 1110 and the memory 1130. The transceiver 1320 can be implemented through Figure 11The transceiver 1130 is configured to implement the receiving function and the sending function. Specifically, the processor implements the functions by executing the computer program stored in the memory. Alternatively, when the apparatus 1300 is a chip, the functions of the transceiver 1130 and / or the implementation process can also be implemented by pins or circuits, etc. Alternatively, the memory can be a storage unit in the chip, such as a register, a cache, etc., and the storage unit can also be a storage unit outside the chip in the information transmission apparatus. Figure 11 The memory 1130 is configured to store the computer program, and can also be a storage unit deployed in other systems or devices, not in the computer device.

[0284] Various aspects or features of the disclosure can be implemented as methods, apparatus, or articles of manufacture using standard programming and / or engineering techniques. For example, a computer-readable medium can include, but is not limited to, magnetic storage devices (e.g., hard disk, floppy disk, magnetic strips, etc.), optical disks (e.g., compact disk (CD), digital versatile disk (DVD), etc.), smart cards, and flash memory devices (e.g., 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" can include, without being limited to, various types of storage media that are capable of storing instructions and / or data.

[0285] According to the method provided in the embodiments of the disclosure, the disclosure further provides a computer program product, which comprises a computer program or a set of instructions, and when the computer program or the set of instructions run on a computer, the computer program or the set of instructions cause the computer to perform the method of any one of the embodiments shown in the embodiments. Figure 3 and Figure 4 the method of any one of the embodiments shown in the embodiments.

[0286] According to the method provided in the embodiments of the disclosure, the disclosure further provides a computer-readable storage medium, which stores a program or a set of instructions, and when the program or the set of instructions run on a computer, the program or the set of instructions cause the computer to perform the method of any one of the embodiments shown in the embodiments. Figure 3 and Figure 4 the method of any one of the embodiments shown in the embodiments.

[0287] According to the method provided in the embodiments of the disclosure, the disclosure further provides a communication system, which comprises the apparatus or the device described above.

[0288] As used in this description, the terms "component," "module," "system" and the like are intended to refer to a computer-related entity, either hardware, software, a combination of hardware and software, software, or software in execution. For example, a component can 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 a component. One or more components can reside within a process and / or thread of execution and a component can be localized, partially localized, and / or distributed across two or more computers. Also, these components can execute from various computer readable media having various data structures stored thereon. The components can communicate by way of local and / or remote processes such as in accordance with a signal having one or more data packets (e.g., data from one component interacting with another component in a local system, distributed system, and / or across a network such as the Internet with other systems via the signal).

[0289] It should also be understood that, in this specification, the word "comprising" is taken to mean "including very possibly comprising other items not listed" or "including at least the recited items" and not a listing of features, integers or items. It should be further understood that the terms "comprising", "including", "containing" and "having" are to be construed open-ended terms (i.e., meaning "including, but not limited to") unless specifically indicated to the contrary or otherwise understood by context.

[0290] It should also be understood that, in this specification, the word "comprising" is taken to mean "including very possibly comprising other items not listed" or "including at least the recited items" and not a listing of features, integers or items. It should be further understood that the terms "comprising", "including", "containing" and "having" are to be construed open-ended terms (i.e., meaning "including, but not limited to") unless specifically indicated to the contrary or otherwise understood by context.

[0291] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiments, which will not be described here.

[0292] The above describes only the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method of information transmission, characterized by, The method comprises: receiving control information and data, the control information and the data being multiplexed in a first physical shared channel, the control information being used to indicate a first modulation mode and / or a first coding mode of the data, the data comprising semi-static transmission data; the first physical shared channel comprising a first symbol, the first symbol being a first symbol in the first physical shared channel that does not carry a demodulation reference signal (DM-RS), the first symbol comprising a first resource element (RE), the first RE being a resource element that does not carry a phase tracking reference signal (PT-RS), the control information being mapped on the first RE in the first symbol according to a first frequency domain mapping interval, the first frequency domain mapping interval being determined according to a number of the first REs in the first symbol and a number of REs that are not mapped by the control information; decoding the data according to the first modulation mode and / or the first coding mode.

2. The method of claim 1, wherein, The method further comprises: receiving first configuration information, the first configuration information being used to configure the semi-static transmission, a physical shared channel carrying the semi-static transmission comprising the first physical shared channel.

3. The method of claim 2, wherein, The first configuration information is further used to configure N physical shared channels of the semi-static transmission, the N physical shared channels comprising the first physical shared channel, N being a positive integer.

4. The method of claim 3, wherein, The first configuration information is further used to indicate that the control information is applied to M physical shared channels corresponding to the data of the semi-static transmission, M being a positive integer multiple of N.

5. The method of claim 4, wherein, 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.

6. The method according to any one of claims 1 to 5, characterized in that, The symbol of the first physical shared channel on which the control information is mapped does not comprise a symbol carrying the DM-RS on the first physical shared channel.

7. The method according to any one of claims 1 to 5, characterized in that, The first physical shared channel further comprises a second symbol, the second symbol being a symbol adjacent to the first symbol and not carrying the control information and the DM-RS, the second symbol comprising the first RE, The control information is mapped on the first RE in the second symbol according to a second frequency domain mapping interval, the second frequency domain mapping interval being determined according to a number of the first REs in the second symbol and a number of REs that are not mapped by the control information.

8. The method according to any one of claims 2 to 5, characterized in that, The first configuration information is further used to indicate symbol ordering information of the symbol of the first physical shared channel to which the control information is mapped, wherein The symbol ordering information is ordered according to a manner of being adjacent to one or more DM-RSs or is sequentially ordered.

9. The method according to any one of claims 1 to 5, characterized in that, The method further comprises: receiving second configuration information, the second configuration information being used to indicate a preset time domain density of the 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 a second frequency domain mapping interval, REs occupied by the PT-RS are skipped, the REs occupied by the PT-RS are determined according to the preset time domain density, the second frequency domain mapping interval is determined according to the number of the first REs in a second symbol and the number of REs not mapped by the control information, the second symbol is a symbol adjacent to the first symbol and not carrying the control information and the DM-RS, and the second symbol includes the first RE.

10. The method according to any one of claims 1 to 5, characterized in that, The data of the semi-static transmission is mapped to second REs on the first physical shared channel, and the second REs are resource units in the first physical shared channel and not carrying the control information, the DM-RS and the PT-RS.

11. The method according to any one of claims 1 to 5, characterized in that, The control information is also used to indicate hybrid automatic repeat request (HARQ) information.

12. The method according to any one of claims 2 to 5, characterized in that, The first configuration information is also used to indicate that the control information is applied to one or more transport blocks (TBs) of the semi-static transmission.

13. The method according to any one of claims 2 to 5, characterized in that, The first configuration information is also used to indicate a second modulation mode and / or a second coding mode of the control information.

14. The method of claim 13, wherein, The method further includes: decoding the control information according to the second modulation mode and / or the second coding mode; The second modulation mode is: binary phase shift keying (BPSK); or π / 2-BPSK; or quadrature phase shift keying (QPSK) modulation; or quadrature amplitude modulation (QAM); The second coding mode 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.

15. A method of information transmission, characterized by The method further includes: encoding data according to a first modulation mode and / or a first coding mode; sending control information and the data, the control information and the data being multiplexed in a first physical shared channel, the control information being used to indicate the first modulation mode and / or the first coding mode of the data, the data including data of a semi-static transmission; the first physical shared channel including a first symbol, the first symbol being a first symbol in the first physical shared channel and not carrying a demodulation reference signal (DM-RS), the first symbol including first resource elements (REs), the first REs being resource elements not carrying a phase tracking reference signal (PT-RS), and the control information being mapped on the first REs in the first symbol according to a first frequency domain mapping interval, the first frequency domain mapping interval being determined according to the number of the first REs in the first symbol and the number of REs not mapped by the control information.

16. The method of claim 15, wherein, The method further includes: sending first configuration information, the first configuration information being used to configure the semi-static transmission, and a physical shared channel carrying the semi-static transmission including the first physical shared channel.

17. The method of claim 16, wherein, The first configuration information is also used to configure N physical shared channels of the semi-static transmission, the N physical shared channels including the first physical shared channel, and N being a positive integer.

18. The method of claim 17, wherein, The first configuration information is further used for indicating that the control information is applied to M physical shared channels corresponding to the data of the semi-static transmission, M being a positive integer multiple of N.

19. The method of claim 18, wherein, Data of the M physical shared channels is processed according to the first modulation mode and / or the first encoding mode of the control information.

20. The method of any one of claims 15-19, wherein, The symbol of the first physical shared channel, on which the control information is mapped, does not include a symbol of the first physical shared channel on which the DM-RS is carried.

21. The method of any one of claims 15-19, wherein, The first physical shared channel further includes a second symbol, the second symbol being a symbol adjacent to the first symbol and not carrying the control information and the DM-RS, and the second symbol including the first RE, The control information is mapped on the first RE of the second symbol according to a second frequency domain mapping interval, the second frequency domain mapping interval being determined according to a number of the first RE on the second symbol and a number of REs not mapped by the control information.

22. The method of any one of claims 16-19, wherein, The first configuration information is further used for indicating symbol order information of the symbol of the first physical shared channel to which the control information is mapped, wherein The symbol order information is ordered according to a manner of being adjacent to one or more DM-RS or is sequentially ordered.

23. The method of any one of claims 15-19, wherein, The method further includes: sending second configuration information, the second configuration information being used for indicating a preset time domain density of the 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 a second frequency domain mapping interval, skipping REs occupied by the PT-RS, the REs occupied by the PT-RS being determined according to the preset time domain density, the second frequency domain mapping interval being determined according to a number of the first RE on a second symbol and a number of REs not mapped by the control information, the second symbol being a symbol adjacent to the first symbol and not carrying the control information and the DM-RS, and the second symbol including the first RE.

24. The method of any one of claims 15-19, wherein, The data of the semi-static transmission is mapped to a second RE on the first physical shared channel, the second RE being a resource unit of the first physical shared channel and not carrying the control information, the DM-RS, and the PT-RS.

25. The method of any one of claims 15-19, wherein, The control information is further used for indicating hybrid automatic repeat request (HARQ) information.

26. The method of any one of claims 16-19, wherein, The first configuration information is further used for indicating that the control information is applied to one or more transport blocks (TBs) of the semi-static transmission.

27. The method of any one of claims 16-19, wherein, The first configuration information is further used for indicating a second modulation mode and / or a second encoding mode of the control information.

28. The method of claim 27, wherein, The method further includes: encoding the control information according to the second modulation mode and / or the second encoding mode; The second modulation mode is: binary phase shift keying (BPSK); or π / 2-binary phase shift keying (π / 2-BPSK); or quadrature phase shift keying (QPSK) modulation; or quadrature amplitude modulation (QAM); The second encoding mode is: Reed-Muller (RM) code encoding; or cyclic redundancy check (CRC) code encoding and RM code encoding; or repetition encoding; or CRC code encoding and polar code encoding.

29. A communications device, characterized by The apparatus includes: a memory configured to store computer instructions; a processor for executing computer instructions stored in the memory, causing the communication device to perform the method of any of claims 1 to 14, or causing the communication device to perform the method of any of claims 15 to 28.

30. A computer-readable storage medium, characterized in that, a computer program stored thereon, which, when executed by a communication device, causes the method of any of claims 1 to 28 to be performed.

31. A computer program product comprising instructions, wherein: which, when run on a computer, causes the method of any of claims 1 to 28 to be performed.

32. A chip system, characterized by comprising: a processor for calling and running computer programs or instructions from the memory, causing the communication device in which the chip system is installed to implement the method of any of claims 1 to 28.

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