CN111757500B

CN111757500B - Communication method and device

Info

Publication number: CN111757500B
Application number: CN201910760399.6A
Authority: CN
Inventors: 张荻; 刘鹍鹏
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-03-28
Filing date: 2019-08-16
Publication date: 2024-05-24
Anticipated expiration: 2039-08-16
Also published as: CN111757500A

Abstract

The application discloses a communication method and a device, which relate to the field of communication and are used for determining the mapping relation between space-related parameters and transmission blocks by network equipment and terminal equipment when the transmission blocks are repeatedly transmitted. A method of communication, comprising: receiving first indication information, wherein the first indication information is used for indicating to receive K space-related parameters of a transmission block borne on N resources, K and N are integers greater than 1, and K is less than or equal to N; determining the mapping relation between K space related parameters and N resources; and receiving the transmission blocks on the N resources according to the mapping relation.

Description

Communication method and device

The present application claims priority from the national intellectual property agency, application number 201910245843.0, chinese patent application entitled "communication method and apparatus" filed on 3/28 of 2019, the entire contents of which are incorporated herein by reference.

Technical Field

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

Background

Communication systems typically use different kinds of reference signals: the first type of reference signals are used for channel estimation, so that the received signals containing control information or data information can be coherently demodulated; the second type of reference signals is used for channel state or channel quality measurement, thereby enabling scheduling of terminal devices, e.g. channel state information reference signals (CHANNEL STATE information REFERENCE SIGNAL, CSI-RS). The terminal device may obtain the spatial characteristic parameter according to the CSI-RS.

In long term evolution (long term evolution, LTE), the concept of spatially dependent parameters was introduced. Assuming that the first reference signal and the second reference signal have the same spatial correlation parameter, a signal transmitted by an antenna port corresponding to the first reference signal and a signal transmitted by an antenna port corresponding to the second reference signal undergo the same large-scale fading. The network device may indicate spatially related parameter information (e.g., transmission configuration indication (transmission configuration indicator, TCI) information or quasi co-located (QCL) information) to the terminal device to assist in describing the transceiving process flow of the terminal device.

In addition, for the ultra-reliable low latency communication (ultra reliable low latency communication, URLLC) scenario of the new window (new radio, NR), multiple transport blocks (transmission block, TB) need to be repeatedly transmitted in order to improve transmission reliability, and the repeated TBs may be transmitted according to multiple spatially related parameter information. In the prior art, the above-mentioned spatial related parameter information can only be mapped with one TB, and when the network device indicates that a plurality of spatial related parameter information is used for transmitting a plurality of repeated TBs, the network device and the terminal device cannot determine the mapping relationship between the plurality of spatial related parameter information and the plurality of TBs, i.e. do not know which TB block is received or transmitted according to which spatial related parameter information.

Disclosure of Invention

The embodiment of the application provides a communication method and a communication device, which are used for determining the mapping relation between space-related parameters and a transmission block by network equipment and terminal equipment when the transmission block is repeatedly transmitted.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical scheme:

In a first aspect, a communication method is provided, including: receiving first indication information, wherein the first indication information is used for indicating K space-related parameters of N transmission blocks, N transmission blocks are the same transmission blocks, K and N are integers greater than 1, and K is less than or equal to N; determining the mapping relation between K space related parameters and N transmission blocks; and receiving N transmission blocks according to the mapping relation. According to the communication method provided by the embodiment of the application, the network equipment sends the first indication information to the terminal equipment, and correspondingly, the terminal equipment receives the first indication information from the network equipment, wherein the first indication information is used for indicating K space-related parameters of N transmission blocks to be received. The network device and the terminal device determine mapping relations between K space-related parameters and N transmission blocks. The network device sends N transport blocks according to the mapping relation, and correspondingly, the terminal device receives the N transport blocks according to the mapping relation. Or the terminal equipment sends N transport blocks according to the mapping relation, and correspondingly, the network equipment receives the N transport blocks according to the mapping relation. When the repeated transmission of the transport blocks is realized, the network equipment and the terminal equipment acquire which transport block is transmitted or received according to which space related parameter according to the mapping relation, and the reliable transmission of the data is ensured.

In one possible implementation, determining the mapping relationship between the K spatial correlation parameters and the N transport blocks includes: and determining the mapping relation between the K space related parameters and the N transport blocks according to the multiplexing mode of the N transport blocks, wherein the multiplexing mode comprises at least one of space division multiplexing, time division multiplexing and frequency division multiplexing. The multiplexing mode of time division multiplexing can effectively reduce frequent switching of wave beams. The multiplexing mode of frequency division multiplexing can obtain better combining effect of the transmission blocks because the channel characteristics of the transmission blocks close to the frequency domain are more similar, and in addition, the transmission of the transmission blocks can be completed more quickly by adopting the frequency division multiplexing mode, so that the transmission delay is reduced. The multiplexing mode of space division multiplexing can finish the transmission delay of the transmission block more quickly and can also improve the system performance.

In a possible implementation manner, N transport blocks adopt a multiplexing manner, where the N transport blocks include K groups of transport blocks; the mapping relation between the K space related parameters and the N transmission blocks comprises: the K spatial correlation parameters arranged according to the first order are mapped sequentially to K groups of transport blocks arranged according to the order corresponding to a multiplexing mode.

In one possible implementation, the mapping relationship between the K spatial correlation parameters and the N transport blocks includes: the K spatially related parameters arranged in the first order are mapped to the N transport blocks in sequence. That is, the spatially dependent parameters are arranged in a first order.

In one possible implementation, the mapping relationship between the K spatial correlation parameters and the N transport blocks includes: the ith spatial correlation parameter of the K spatial correlation parameters arranged according to the first sequence is mapped to the Kxj+i transport blocks of the N transport blocks, wherein i and j are integers, i is more than or equal to 1 and less than or equal to K, K is more than or equal to 1 and less than or equal to K+i and less than or equal to N, Representing an upward rounding. This embodiment is described with respect to the mapping relationship between each spatially dependent parameter and a single transport block. It should be noted that when K < N, one spatial correlation parameter may be mapped to a plurality of transport blocks, so that each transport block may be guaranteed to have a corresponding spatial correlation parameter.

In one possible implementation, the N transport blocks are arranged in a multiplexing manner, and the N transport blocks are arranged in a sequence corresponding to the multiplexing manner.

In one possible implementation manner, the N transport blocks adopt at least two multiplexing modes, where the at least two multiplexing modes include a first multiplexing mode, the N transport blocks include M groups of transport blocks, M is a positive integer, and transport blocks in each group of transport blocks are arranged according to a sequence corresponding to the first multiplexing mode.

In one possible implementation manner, the N transport blocks adopt two multiplexing modes, and the M groups of transport blocks are arranged according to the sequence corresponding to the second multiplexing mode.

In one possible implementation, the first multiplexing mode is space division multiplexing, and the second multiplexing mode is time division multiplexing or frequency division multiplexing; or the first multiplexing mode is time division multiplexing, and the second multiplexing mode is frequency division multiplexing; or the first multiplexing mode is frequency division multiplexing, and the second multiplexing mode is time division multiplexing. When the first multiplexing mode adopts space division multiplexing, a better space division multiplexing effect can be obtained, namely, K space related parameters are mapped to the space division multiplexing transmission blocks preferentially, and a better space division multiplexing effect can be obtained. The first multiplexing mode is frequency division multiplexing and the second multiplexing mode is time division multiplexing applicable in case the terminal device has a plurality of antenna panels, optionally activated. The first multiplexing mode is time division multiplexing and the second multiplexing mode is frequency division multiplexing applicable in case the terminal device has a single antenna panel, optionally activated.

In one possible implementation manner, the N transport blocks adopt three multiplexing modes, and the transport blocks of each group are arranged according to the sequence corresponding to the second multiplexing mode and then arranged according to the sequence corresponding to the third multiplexing mode.

In one possible implementation, the first multiplexing mode is space division multiplexing, the second multiplexing mode is time division multiplexing, the third multiplexing mode is frequency division multiplexing, or the first multiplexing mode is space division multiplexing, the second multiplexing mode is frequency division multiplexing, and the third multiplexing mode is time division multiplexing.

In one possible implementation manner, the K spatial related parameters arranged according to the first order are mapped to the resources arranged according to the order corresponding to the first multiplexing manner in each group of resources in turn, and then the mapping is repeated between the groups of resources. Alternatively, the N resources may be arranged in order from one group to another. The K spatially related parameters arranged in the first order may be sequentially circularly mapped to the N resources arranged in the order.

In one possible embodiment, the first order is: the identification of the spatial correlation parameters is from small to large, or the identification of the spatial correlation parameters is from large to small, or the sequence of the K spatial correlation parameters indicated by the first indication information.

In one possible implementation manner, the corresponding order of the multiplexing modes of the space division multiplexing is: the sequence of the indexes of the demodulation reference signal ports from small to large, or the sequence of the indexes of the demodulation reference signal ports from large to small, or the sequence of the indexes of the demodulation reference signal port groups indicated by the antenna port word fields from small to large, or the sequence of the indexes of the demodulation reference signal port groups indicated by the antenna port word fields from large to small, or the sequence of the indexes of the demodulation reference signal ports indicated by the antenna port word fields from small to large, or the sequence of the indexes of the demodulation reference signal ports indicated by the antenna port word fields from large to small; each or every few demodulation reference signal ports, a demodulation reference signal port group, is used to demodulate one transport block of N transmissions.

In one possible implementation manner, the corresponding order of the multiplexing modes of the space division multiplexing is: the sequence of the indexes of the demodulation reference signal ports from small to large, or the sequence of the indexes of the demodulation reference signal ports from large to small, or the sequence of the indexes of the demodulation reference signal port groups indicated by the antenna port word fields from small to large, or the sequence of the indexes of the demodulation reference signal port groups indicated by the antenna port word fields from large to small, or the sequence of the indexes of the demodulation reference signal ports indicated by the antenna port word fields from small to large, or the sequence of the indexes of the demodulation reference signal ports indicated by the antenna port word fields from large to small; each or every few demodulation reference signal ports, demodulation reference signal port groups correspond to one of N resources.

In one possible implementation manner, the time division multiplexing mode corresponds to the following sequence: the index of the time domain resources is in order from small to large or the index of the time domain resources is in order from large to small, and each time domain resource is used for carrying one transport block in the N transport blocks.

In one possible implementation manner, the order corresponding to the multiplexing manner of the frequency division multiplexing is: the indexes of the frequency domain resources are in order from small to large or in order from large to small, wherein each frequency domain resource is used for bearing one transmission block in N transmission blocks.

In one possible implementation, the spatially dependent parameter indicates TCI information for spatially dependent information or transmission configuration. Namely, the implementation manner provided by the embodiment of the application can be used for PDSCH transmission and PUSCH transmission.

In one possible implementation manner, the N transport blocks adopt a multiplexing manner of time division multiplexing and frequency division multiplexing, and the N transport blocks include M groups of transport blocks; the mapping relation between the K space related parameters and the N transmission blocks comprises: the ith spatial correlation parameter in the K spatial correlation parameters arranged according to the first sequence is mapped to the Kxj+i group of transmission blocks in the M groups of transmission blocks, wherein i and j are integers, i is more than or equal to 1 and less than or equal to K, K is more than or equal to 1 and less than or equal to K+i and less than or equal to M, Representing an upward rounding.

The mapping relation between the K spatial correlation parameters and the N transport blocks may be configured by the network device, or predefined by the protocol, or determined by the terminal device according to the frequency domain or time domain spacing of at least two transport blocks. For example, when the frequency domain or time domain spacing between adjacent transport blocks in the N transport blocks is greater than the first threshold, a manner of sequentially mapping K spatial correlation parameters arranged according to the first order to the N transport blocks or a manner of mapping an ith spatial correlation parameter in the K spatial correlation parameters arranged according to the first order to a kth x j+i transport block in the N transport blocks may be adopted, which may enable better diversity gain to be obtained when the frequency domain or time domain spacing between the transport blocks is greater; when the frequency domain or time domain spacing between adjacent transmission blocks in the N transmission blocks is smaller than a first threshold, a mode of sequentially mapping K space-related parameters arranged according to a first order to K groups of transmission blocks arranged according to an order corresponding to a multiplexing mode can be adopted, and the mode can enable the frequency domain or time domain spacing between the transmission blocks to be smaller, avoid frequent beam switching and excessive channel estimation, thereby reducing the implementation complexity of the terminal equipment.

In a second aspect, a communication method is provided, including: transmitting first indication information, wherein the first indication information is used for indicating K space-related parameters of N transmission blocks, N transmission blocks are the same transmission blocks, K and N are integers greater than 1, and K is less than or equal to N; determining the mapping relation between K space related parameters and N transmission blocks; and transmitting N transmission blocks according to the mapping relation. According to the communication method provided by the embodiment of the application, the network equipment sends the first indication information to the terminal equipment, and correspondingly, the terminal equipment receives the first indication information from the network equipment, wherein the first indication information is used for indicating K space-related parameters of N transmission blocks to be received. The network device and the terminal device determine mapping relations between K space-related parameters and N transmission blocks. The network device sends N transport blocks according to the mapping relation, and correspondingly, the terminal device receives the N transport blocks according to the mapping relation. Or the terminal equipment sends N transport blocks according to the mapping relation, and correspondingly, the network equipment receives the N transport blocks according to the mapping relation. When the repeated transmission of the transport blocks is realized, the network equipment and the terminal equipment acquire which transport block is transmitted or received according to which space related parameter according to the mapping relation, and the reliable transmission of the data is ensured.

In one possible implementation, determining the mapping relationship between the K spatial correlation parameters and the N transport blocks includes: and determining the mapping relation between the K space related parameters and the N transport blocks according to the multiplexing mode of the N transport blocks, wherein the multiplexing mode comprises at least one of space division multiplexing, time division multiplexing and frequency division multiplexing.

In one possible implementation, the mapping relationship between the K spatial correlation parameters and the N transport blocks includes: the ith spatial correlation parameter of the K spatial correlation parameters arranged according to the first sequence is mapped to the Kxj+i transport blocks of the N transport blocks, wherein i and j are integers, i is more than or equal to 1 and less than or equal to K, K is more than or equal to 1 and less than or equal to K+i and less than or equal to N, Representing an upward rounding. This embodiment is described with respect to the mapping relationship between each spatially dependent parameter and a single transport block.

In one possible implementation manner, three multiplexing modes are adopted, and the transmission blocks of each group are arranged according to the sequence corresponding to the second multiplexing mode and then arranged according to the sequence corresponding to the third multiplexing mode.

In one possible implementation manner, the corresponding order of the multiplexing modes of the space division multiplexing is: the sequence of the indexes of the demodulation reference signal ports from small to large, or the sequence of the indexes of the demodulation reference signal ports from large to small, or the sequence of the indexes of the demodulation reference signal port groups indicated by the antenna port word fields from small to large, or the sequence of the indexes of the demodulation reference signal port groups indicated by the antenna port word fields from large to small, or the sequence of the indexes of the demodulation reference signal ports indicated by the antenna port word fields from small to large, or the sequence of the indexes of the demodulation reference signal ports indicated by the antenna port word fields from large to small; each or every few demodulation reference signal ports or groups of demodulation reference signal ports are used to demodulate one of the N transport blocks.

In a third aspect, there is provided a terminal device comprising: a processing module and a receiving-transmitting module; for performing the communication method of the first aspect and any implementation manner thereof. Specifically, the transceiver module is configured to receive first indication information, where the first indication information is used to indicate receiving K spatial related parameters of N transport blocks, where the N transport blocks are the same transport blocks, K and N are integers greater than 1, and K is less than or equal to N; the processing module is used for determining the mapping relation between K space related parameters and N transmission blocks; and the receiving and transmitting module is also used for receiving the N transmission blocks according to the mapping relation.

In one possible implementation, the processing module is specifically configured to: and determining the mapping relation between the K space related parameters and the N transport blocks according to the multiplexing mode of the N transport blocks, wherein the multiplexing mode comprises at least one of space division multiplexing, time division multiplexing and frequency division multiplexing.

In a fourth aspect, there is provided a network device comprising: a processing module and a receiving-transmitting module; for performing the communication method of the second aspect and any embodiments thereof. Specifically, the transceiver module is configured to send first indication information, where the first indication information is used to indicate receiving K spatial related parameters of N transport blocks, where the N transport blocks are the same transport blocks, K and N are integers greater than 1, and K is less than or equal to N; the processing module is used for determining the mapping relation between K space related parameters and N transmission blocks; and the receiving and transmitting module is also used for transmitting the N transmission blocks according to the mapping relation.

In a fifth aspect, there is provided a communication apparatus comprising: a processor and a memory for storing a program, the processor invoking the program stored in the memory to perform the communication method as described in the first aspect.

In a sixth aspect, there is provided a communication apparatus comprising: a processor and a memory for storing a program, the processor calling the program stored in the memory to perform the communication method as described in the second aspect.

In a seventh aspect, a computer readable storage medium is provided, in which instructions are stored which, when run on a computer or processor, cause the computer or processor to perform a communication method as in the first aspect or any of its possible embodiments, or to perform a communication method as in the second aspect or any of its possible embodiments.

In an eighth aspect, there is provided a computer program product comprising instructions which, when run on a computer or processor, cause the computer or processor to perform a communication method as in the first aspect or any of its possible embodiments, or to perform a communication method as in the second aspect or any of its possible embodiments.

A ninth aspect provides a communication system comprising a terminal device as claimed in the third aspect and a network device as claimed in the fourth aspect, or comprising a communication apparatus as claimed in the fifth aspect and a communication apparatus as claimed in the sixth aspect.

Technical effects of the third to ninth aspects may be described with reference to various possible implementations of the first to second aspects.

Drawings

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

fig. 2 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a network device according to an embodiment of the present application;

fig. 4 is a schematic diagram of beam training according to an embodiment of the present application;

Fig. 5 is a schematic flow chart of a communication method according to an embodiment of the present application;

fig. 6 is a schematic diagram of a mapping relationship between spatial correlation parameters and a transport block according to an embodiment of the present application;

fig. 7 is a schematic diagram of a mapping relationship between spatial correlation parameters and a transport block in a multiplexing manner according to an embodiment of the present application;

Fig. 8 is a schematic diagram two of a mapping relationship between space-time related parameters and a transport block in a multiplexing mode according to an embodiment of the present application;

fig. 9 is a schematic diagram III of a mapping relationship between space-time related parameters and a transport block in a multiplexing mode according to an embodiment of the present application;

fig. 10 is a schematic diagram showing a mapping relationship between space-time related parameters and a transport block in a multiplexing mode according to an embodiment of the present application;

Fig. 11 is a schematic diagram fifth of a mapping relationship between space-time related parameters and a transport block in a multiplexing mode according to an embodiment of the present application;

fig. 12 is a schematic diagram sixth of a mapping relationship between space-time related parameters and a transport block in a multiplexing manner according to an embodiment of the present application;

Fig. 13 is a schematic diagram seventh of a mapping relationship between space-time related parameters and a transport block in a multiplexing mode according to an embodiment of the present application;

fig. 14 is a schematic diagram eight of a mapping relationship between space-time related parameters and a transport block in a multiplexing mode according to an embodiment of the present application;

Fig. 15 is a schematic diagram one of mapping relationships between space-time related parameters and transport blocks in two multiplexing modes according to an embodiment of the present application;

fig. 16 is a second schematic diagram of mapping relationships between space-time related parameters and transport blocks in two multiplexing modes according to an embodiment of the present application;

Fig. 17A is a schematic diagram III of mapping relationships between space-time related parameters and transport blocks in two multiplexing modes according to an embodiment of the present application;

Fig. 17B is a schematic diagram four of mapping relationships between space-time related parameters and transport blocks in two multiplexing modes according to an embodiment of the present application;

Fig. 18 is a schematic diagram fifth of mapping relationship between space-time related parameters and transport blocks in two multiplexing modes according to an embodiment of the present application;

fig. 19 is a schematic diagram one of mapping relationships between space-time related parameters and transport blocks in three multiplexing modes according to an embodiment of the present application;

fig. 20 is a second schematic diagram of mapping relationships between space-time related parameters and transport blocks in three multiplexing modes according to an embodiment of the present application;

Fig. 21 is a second schematic structural diagram of a terminal device according to an embodiment of the present application;

Fig. 22 is a schematic diagram of a second structure of a network device according to an embodiment of the present application.

Detailed Description

The embodiment of the application can be applied to a time division duplex (time division duplexing, TDD) scene and a frequency division duplex (frequency division duplexing, FDD) scene.

The embodiment of the application is described by referring to the scenario of the fifth generation (5th generation,5G) communication network in the wireless communication network, and it should be noted that the scheme in the embodiment of the application can also be applied to other wireless communication networks, for example, the sixth generation mobile communication system, and the corresponding names can also be replaced by the names of the corresponding functions in other wireless communication networks. The 5G mobile communication system related to the application comprises a 5G mobile communication system of a non-independent networking (non-standalone, NSA) and/or a 5G mobile communication system of an independent networking (standalone, SA).

Embodiments of the application may be applicable in long term evolution (long term evolution, LTE) systems, such as NB-IoT systems, or may also be applicable in advanced long term evolution (LTE ADVANCED, LTE-a) systems. It is also applicable to other wireless communication systems such as global system for mobile communications (global system for mobile communication, GSM), mobile communication system (universal mobile telecommunications system, UMTS), code division multiple access (code division multiple access, CDMA) systems, and new network equipment systems. The following describes specific embodiments using an LTE system as an example.

As shown in fig. 1, a communication system 100 provided in an embodiment of the present application includes a network device 101 and terminal devices 102-107.

The terminal device according to the embodiment of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing device connected to a wireless modem. The wireless terminals may communicate with one or more core networks via a radio access network (radio access network, RAN), which may be mobile terminals such as mobile phones (or "cellular" phones) and computers with mobile terminals, e.g., portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile devices that exchange voice and/or data with the radio access network. Such as User Equipment (UE), personal communication services (personal communication service, PCS) phones, cordless phones, session Initiation Protocol (SIP) phones, wireless local loop (wireless local loop, WLL) stations, personal Digital Assistants (PDAs), etc. A wireless terminal may also be called a system, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile), remote station (remote station), access point (access point), remote terminal (remote terminal), access terminal (ACCESS TERMINAL), user terminal (user terminal), user agent (user agent), user device (user equipment), or user equipment (user equipment). By way of example, the terminal devices may be, but are not limited to, a high-speed rail communication device 102, a smart air conditioner 103, a smart fuel dispenser 104, a cell phone 105, a smart cup 106, a printer 107, and the like.

The network device according to embodiments of the present application may be a base station that may be configured to convert received air frames and internet protocol (internet protocol, IP) packets to each other as a router between the wireless terminal and the rest of the access network, which may include IP network devices. The base station may also coordinate attribute management for the air interface. For example, the base station may be a base station (base transceiver station, BTS) in GSM or CDMA, a base station (NodeB) in wideband code division multiple access (wideband code division multiple access, WCDMA), an evolved base station (evolutional Node B, eNB or e-NodeB) in LTE, or a gNB in 5G, which is not limited by the embodiment of the present application. The above base stations are merely examples, and the network device may also be a relay station, an access point, an in-vehicle device, a wearable device, and other types of devices.

As shown in fig. 2, the structure of the terminal device will be described using the terminal device as an example of a mobile phone.

The terminal device 105 may include: radio Frequency (RF) circuitry 110, memory 120, input unit 130, display unit 140, sensor 150, audio circuitry 160, wireless fidelity (WIRELESS FIDELITY, wi-Fi) module 170, processor 180, bluetooth module 181, and power supply 190.

The RF circuit 110 may be used for receiving and transmitting signals during the process of receiving and transmitting information or communication, and may receive downlink data of the base station and then transmit the downlink data to the processor 180 for processing; uplink data may be sent to the base station. Typically, RF circuitry includes, but is not limited to, antennas, at least one amplifier, transceivers, couplers, low noise amplifiers, diplexers, and the like.

Memory 120 may be used to store software programs and data. The processor 180 performs various functions of the terminal device 105 and data processing by running software programs or data stored in the memory 120. Memory 120 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device. The memory 120 stores an operating system, such as developed by apple corporation, that enables the terminal device 105 to operateOperating System, developed by Google Corp /)Open source operating System, developed by Microsoft corporation/>An operating system, etc. The memory 120 of the present application may store an operating system and various application programs, and may also store code for performing the methods of the embodiments of the present application.

An input unit 130 (e.g., a touch screen) may be used to receive input numeric or character information, generating signal inputs related to user settings of the terminal device 105 and function control. In particular, the input unit 130 may include a touch screen 131 disposed at the front of the terminal device 105, on or near which touch operations by a user may be collected.

The display unit 140 (i.e., display screen) may be used to display information entered by a user or provided to a user as well as a graphical user interface (GRAPHICAL USER INTERFACE, GUI) of various menus of the terminal device 105. The display unit 140 may include a display screen 141 disposed on the front surface of the terminal device 105. The display screen 141 may be configured in the form of a liquid crystal display, a light emitting diode, or the like. The display unit 140 may be used to display various graphical user interfaces described in the present application. The touch screen 131 may cover the display screen 141, or the touch screen 131 and the display screen 141 may be integrated to implement input and output functions of the terminal device 105, and after integration, the touch screen may be simply referred to as a touch display screen.

The terminal device 105 may also include at least one sensor 150, such as a light sensor, a motion sensor. The terminal device 105 may also be configured with other sensors such as gyroscopes, barometers, hygrometers, thermometers, infrared sensors, and the like.

Audio circuitry 160, speaker 161, microphone 162 can provide an audio interface between the user and terminal device 105. The audio circuit 160 may transmit the received electrical signal converted from audio data to the speaker 161, and the electrical signal is converted into a sound signal by the speaker 161 to be output; on the other hand, the microphone 162 converts the collected sound signal into an electrical signal, which is received by the audio circuit 160 and converted into audio data, which is output to the RF circuit 110 for transmission to, for example, another terminal, or to the memory 120 for further processing.

Wi-Fi belongs to a short-range wireless transmission technology, and the terminal device 105 can help a user to send and receive e-mail, browse web pages, access streaming media and the like through the Wi-Fi module 170, so that wireless broadband internet access is provided for the user.

The processor 180 is a control center of the terminal device 105, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the terminal device 105 and processes data by running or executing software programs stored in the memory 120, and calling data stored in the memory 120. In some embodiments, the processor 180 may include one or more processing units; the processor 180 may also integrate an application processor that primarily handles operating systems, user interfaces, applications, etc., and a baseband processor that primarily handles wireless communications. It will be appreciated that the baseband processor described above may not be integrated into the processor 180. The processor 180 of the present application may run an operating system, an application program, a user interface display and a touch response, and a communication method according to the embodiments of the present application.

The bluetooth module 181 is configured to perform information interaction with other bluetooth devices having a bluetooth module through a bluetooth protocol. For example, the terminal device 105 may establish a bluetooth connection with a wearable electronic device (e.g., a smartwatch) that also has a bluetooth module through the bluetooth module 181, thereby performing data interaction.

The terminal device 105 also includes a power supply 190 (e.g., a battery) that provides power to the various components. The power supply may be logically connected to the processor 180 through a power management system, so that functions of managing charge, discharge, power consumption, etc. are implemented through the power management system.

As shown in fig. 3, an embodiment of the present application provides a schematic structural diagram of a network device. The network device 300 includes: at least one processor 301, at least one memory 302, at least one communication interface 303. Wherein the at least one processor 301, the at least one memory 302, and the at least one communication interface 303 may be connected by a bus.

A memory 302 for storing computer program code.

A processor 301, configured to invoke computer program codes stored in the memory 302, to perform the functions of the network device in the method embodiments described below.

A communication interface 303 for communicating with other communication means, such as terminal devices. The communication interface 303 may communicate in a wireless communication manner.

The concepts involved in the present application are described below:

Control resource set (control resource set, CORESET):

In order to improve the efficiency of blind detection control channel of terminal equipment, the concept of controlling resource set is provided in the NR standard making process. The network device may configure the terminal device with one or more resource sets for transmitting a physical downlink control channel (physical downlink control channel, PDCCH). The network device may send the PDCCH to the terminal device on any set of control resources corresponding to the terminal device. In addition, the network device may also notify the terminal device of other configuration information of the control resource set, such as a search space set, and the like. There are differences in configuration information, such as frequency domain width differences, time domain length differences, etc., for each control resource set. The control resource set in the present application may be CORESET defined by the 5G mobile communication system, a control region (control region), or an enhanced physical downlink control channel (ENHANCED PHYSICAL downlink control channel, ePDCCH) set (set).

Antenna port (antenna port):

an antenna port is simply referred to as a port, and refers to a transmitting antenna identified by a device, or a spatially distinguishable transmitting antenna. Each antenna port is configured for one virtual antenna, each virtual antenna may be a weighted combination of multiple physical antennas, and each antenna port may correspond to a port of one reference signal.

Quasi co-location (quasi-collocation, QCL) information:

QCL may also be referred to as quasi co-station, and QCL information is used to assist in describing beamforming information on the receiving side of the terminal device and the receiving process flow. The QCL information may indicate a QCL relationship between a target reference signal and a source reference signal, wherein the target reference signal may include a demodulation reference signal (demodulation REFERENCE SIGNAL, DMRS), a channel state information reference signal (CHANNEL STATE information REFERENCE SIGNAL, CSI-RS), and the like; the source reference signals may include CSI-RS, tracking reference signals (TRACKING REFERENCE SIGNAL, TRS), synchronization signal broadcast channel blocks (synchronous signal/physical broadcast channel block, SSB), and the like. The spatial characteristic parameters of the source reference signal and the target reference signal that satisfy the QCL relationship are the same, so that the spatial characteristic parameters of the target reference signal can be inferred based on the source reference signal resource index. Wherein the spatial characteristic parameter comprises at least one of the following parameters:

Angle of arrival (AoA), main (dominant) incident angle, average incident angle, power angle spectrum of incident angle (power angular spectrum, PAS), exit angle (angle of departure, aoD), main exit angle, average exit angle, power angle spectrum of exit angle, terminal transmit beamforming, terminal receive beamforming, spatial channel correlation, base station transmit beamforming, base station receive beamforming, average channel gain, average channel delay (AVERAGE DELAY), delay spread (DELAY SPREAD), doppler spread (Doppler spread), doppler shift (Doppler shift), spatial receive parameters (spatial Rx parameters), and the like.

The QCL information describes the spatial channel characteristics between the antenna ports of the source reference signal and the target reference signal, which helps the terminal device to complete the beamforming or receiving process at the receiving side according to the QCL information.

In order to save the overhead of the network device indicating QCL information to the terminal device, as an optional implementation manner, the network device side may indicate that at least one of the demodulation reference signal of the PDCCH or the physical downlink shared channel (physical downlink SHARED CHANNEL, PDSCH) and the multiple reference signal resources previously reported by the terminal device satisfy the QCL relationship, for example, assume that the terminal device reports at least one CSI-RS resource index, each CSI-RS resource index corresponds to one of the transceiver beam pairs previously established based on the CSI-RS resource measurement. The QCL information indicated by the network device indicates that the demodulation reference signal of the PDCCH or PDSCH and at least one of the CSI-RS resources satisfy the QCL relationship, and since the received beam information of the two reference signals satisfying the QCL relationship is the same, the terminal device can infer the received beam information of the PDCCH or PDSCH based on the QCL information and the CSI-RS resource index.

Four types of QCL information are defined in the existing standard, and the network device may simultaneously configure at least one type (types) of QCL, for example, QCL type a+d, QCL type c+d, etc., to the terminal device. Wherein:

QCL type a includes: doppler shift (Doppler shift), doppler spread (Doppler spread), average channel delay (AVERAGE DELAY), delay spread (DELAY SPREAD).

QCL type B includes: doppler shift, doppler spread.

QCL type C includes: average channel delay, doppler shift.

QCL type D includes: spatial reception parameters (spatial Rx parameters).

Spatial relationship (spatial relationship) information:

The spatial relationship information is used for assisting in describing beamforming information on the transmitting side of the terminal equipment and a transmitting processing flow. The spatial relationship information may indicate a spatial reception parameter relationship between a source reference signal and a target reference signal, wherein the target reference signal may include a DMRS, a Sounding REFERENCE SIGNAL (SRS), and the like; the source reference signal may include CSI-RS, SRS, SSB, etc. The spatial characteristic parameters of the source reference signal and the target reference signal satisfying the spatial relationship information are identical, so that the spatial characteristic parameters of the target reference signal can be deduced based on the source reference signal resource index. The spatial characteristics are described above and are not repeated here.

The spatial relationship information describes the spatial channel characteristics between the antenna ports of the source reference signal and the target reference signal, and is helpful for the terminal equipment to complete the beamforming or transmitting processing process of the transmitting side according to the spatial relationship information.

Transmitting configuration indication (transmission configuration indicator, TCI) information:

the TCI information is used to indicate QCL relation between two reference signals, such as PDCCH/CORESET or QCL information of PDSCH. The TCI information means that the reference signal included in the TCI and the DMRS of the PDCCH/PDSCH satisfy the QCL relationship, and is mainly used for indicating that when the PDCCH/PDSCH is received, information such as a spatial reception parameter is the same as or similar to information such as a spatial reception parameter of the reference signal included in the TCI.

Synchronization signal broadcast channel block (synchronous signal/physical broadcast channel block, SSB):

The SSB includes at least one of a primary synchronization signal (primary synchronization signal, PSS), a secondary synchronization signal (secondary synchronization signal, SSS) and a physical broadcast channel (physical broadcast channel, PBCH), primarily for cell search, cell synchronization, signals carrying broadcast information.

Beam (beam):

A beam is a communication resource and may be a wide beam, a narrow beam, or other type of beam. The technique of forming the beam may be a beamforming technique or other technique. The beamforming techniques may include digital beamforming techniques, analog beamforming techniques, hybrid digital/analog beamforming techniques. Different beams may be considered different resources. The same information or different information may be transmitted through different beams.

Alternatively, a plurality of beams having the same or similar communication characteristics may be regarded as one beam. One beam may correspond to one or more antenna ports for transmitting data channels, control channels, and sounding signals, etc. The transmit beam may refer to a distribution of signal strengths formed in spatially different directions after the wireless signal is transmitted through the antenna, and the receive beam may refer to a signal strength distribution of the wireless signal received from the antenna in spatially different directions. It is understood that one or more antenna ports forming a beam may also be considered as a set of antenna ports.

The beam may be divided into a transmission beam and a reception beam of the network device and a transmission beam and a reception beam of the terminal device. The transmitting beam of the network device is used for describing the beamforming information of the transmitting side of the network device, the receiving beam of the network device is used for describing the beamforming information of the receiving side of the network device, the transmitting beam of the terminal device is used for describing the beamforming information of the transmitting side of the terminal device, and the receiving beam of the terminal is used for describing the beamforming information of the receiving side of the terminal device. I.e. the beam is used to describe the beamforming information.

The beams may correspond to time resources, space resources, frequency domain resources.

Optionally, the beam may also correspond to a reference signal resource (e.g., a beamformed reference signal resource) or beamforming information.

Optionally, the beam may also correspond to information associated with a reference signal resource of the network device, where the reference signal may be CSI-RS, SSB, DMRS, a phase tracking signal (PHASE TRACKING REFERENCE SIGNAL, PTRS), a tracking signal (TRACKING REFERENCE SIGNAL, TRS), etc. The information associated with the reference signal resources may be a reference signal resource index, QCL information (especially QCL information of type D), etc. The reference signal resource index corresponds to a transmit-receive beam pair established before based on the reference signal measurement, and through the reference signal resource index, the terminal device can infer beam information of the transmit-receive beam pair.

Optionally, the beam may also correspond to spatial filters (SPATIAL FILTER/spatial domain filter), spatial transmission filters (spatial domain transmission filter), spatial filters, spatial transmission filters. Wherein the receive beam may be equivalent to a spatial transmit filter, a spatial receive filter, or a spatial receive filter. The transmit beam may be equivalent to a spatial filter, a spatial transmission filter, or a spatial transmission filter. The information of the spatially dependent parameters is equivalent to a spatial filter (spatial domain transmission/RECEIVE FILTER).

Optionally, the spatial filter generally comprises a spatial transmit filter and/or a spatial receive filter. The spatial filter may also be referred to as a spatial transmit filter, a spatial receive filter, a spatial transmit filter, or the like. Alternatively, the receiving beam at the terminal device side and the transmitting beam at the network device side may be downlink spatial filters, and the transmitting beam at the terminal device side and the receiving beam at the network device side may be uplink spatial filters.

As communication systems increasingly begin to communicate using high frequency bands with greater available bandwidth, the high frequency bands will result in greater path loss, and thus beamforming techniques are introduced to obtain greater antenna gain to offset this path loss.

When signals are transmitted based on the beam forming technology, once terminal equipment moves, the direction of a formed beam corresponding to the transmitted signals is not matched with the moved position, so that the received signals are frequently interrupted. Compared with cell switching, the switching of terminal equipment among different shaped beams is more dynamic and frequent, and a channel quality measurement and channel quality measurement result reporting method based on a beam shaping technology is introduced for tracking the shaped beam change in the signal transmission process, wherein the channel quality measurement can be based on a synchronous signal or a cell specific reference signal after beam shaping; similar to the reporting of CSI information, the reporting of the channel quality measurement result of the shaped beam may also be sent by the terminal device to the network device through a physical uplink control channel (physical uplink control channel, PUCCH) or a Physical Uplink Shared Channel (PUSCH).

Specifically, as shown in fig. 4, a beam training process for beamforming is performed.

As shown in fig. 4 (E), the training process of the transmitting beam of the network device is shown, the terminal device measures the plurality of beams sent by the network device to select the N better beams, and reports the beam measurement information of the N better beams to the network device. As shown in (D) of fig. 4, which shows a training process of a transmitting beam of the terminal device, the network device selects M beams that are superior among the multiple beams transmitted by the terminal device by measuring the multiple beams, and may indicate the superior beam selected by the network device through one or more beam training processes to the terminal device.

The beam measurement information, i.e. beam state information (beam state information, BSI), includes a beam index, reference signal received power (REFERENCE SIGNAL RECEIVED power, RSRP) of the beam. Furthermore, the specific beam is not directly indicated in the standard, the transmit beam at the network device is represented by a reference signal resource index, e.g. beam index 1 is described in the standard as reference signal resource index 1; the reception beam at the terminal device side is indicated by a spatial reception parameter (Spatial Rx parameter) in QCL information, and beam measurement information (beam state information) is described in the standard as L1-RSRP or L1-SINR related information (L1-RSRP RELATED information).

Selection of the optimal N Beam Pair Link (BPL). Wherein a BPL comprises a transmit beam of a network device and a receive beam of a terminal device, or a BPL comprises a transmit beam of a terminal device and a receive beam of a network device. As shown in (a) and (B) of fig. 4, the terminal device implements selection of a transmit beam of the network device and/or a receive beam of the terminal based on beam scanning of the network device; the network device enables selection of a transmit beam of the terminal device and/or a receive beam of the network device based on beam scanning of the terminal device. Beam scanning refers to the process of transmitting reference signals over different transmit beams.

Updating of the transmit beam. The transmission beam may be a transmission beam of a network device or a transmission beam of a terminal device. When the transmission beam is a transmission beam of the network device, as shown in (E) of fig. 4, the network device transmits reference signals to the terminal device through different transmission beams, the terminal device receives the reference signals transmitted by the network device through different transmission beams through the same reception beam, determines a preferred transmission beam of the network device based on the reception signals, and then transmits the preferred transmission beam of the network device to the network device so that the network device updates the transmission beam. When the transmission beam is the transmission beam of the terminal device, as shown in (E) of fig. 4, the terminal device transmits reference signals to the network device through different transmission beams, the network device receives the reference signals transmitted by the terminal device through different transmission beams through the same reception beam, determines a preferred transmission beam of the terminal device based on the reception signals, and then transmits the preferred transmission beam of the terminal device to the terminal device so that the terminal device updates the transmission beam. Wherein the process of determining a preferred transmit beam based on the received signal may be referred to as beam matching.

And receiving the update of the wave beam. The reception beam may be a reception beam of a network device or a reception beam of a terminal device. When the reception beam is a reception beam of the network device, as shown in (F) of fig. 4, the terminal device transmits a reference signal to the network device through the same transmission beam, the network device receives the reference signal transmitted by the terminal device through a different reception beam, determines a preferred reception beam of the network device based on the reception signal, and then the network device updates the reception beam of the network device according to the preferred reception beam. When the reception beam is a reception beam of the terminal device, as shown in (C) of fig. 4, the network device transmits a reference signal to the terminal device through the same transmission beam, the terminal device receives the reference signal transmitted by the network device through a different reception beam, determines a superior reception beam of the terminal device based on the reception signal, and then the terminal device updates the reception beam of the terminal device according to the superior reception beam.

In the downlink signal transmission, the transmitting beam of the network device and the receiving beam of the terminal device may be dynamically changed, and the preferred receiving beam determined by the terminal device based on the receiving signal may include a plurality of receiving beams, so that in order for the terminal device to determine its receiving beam, the terminal device may send beam information of the plurality of receiving beams to the network device, and the network device may indicate the receiving beam of the terminal device to the terminal device by sending beam indication information to the terminal device. When the terminal equipment adopts the beam forming of the analog domain, the terminal equipment can accurately determine the receiving beam of the terminal equipment based on the beam indication information sent by the network equipment, so that the beam scanning time of the terminal equipment can be saved, and the effect of saving electricity is achieved.

The embodiment of the application provides a communication method, which can comprise S501-S505, or can comprise S501-S503 and S506-S507, as shown in FIG. 5. Wherein, S501-S505 are used for downlink signal/data/channel (e.g. PDSCH) transmission between the network device and the terminal device, S501-S503 and S506-S507 are used for uplink signal/data/channel (e.g. PUSCH) transmission between the network device and the terminal device:

s501, the network equipment sends first indication information to the terminal equipment.

Accordingly, the terminal device receives the first indication information from the network device.

The first indication information is used for indicating K space related parameters of the N transmission blocks. For PDSCH, the spatially related parameters refer to the TCI described above. For PUSCH, the spatial correlation parameter refers to spatial relationship (spatial correlation) information as described above. The embodiment of the present application is described by taking the space-related parameter as TCI as an example, but is not intended to be limiting.

The N transport blocks are the same transport block, and it is understood that one transport block is repeated N times, and it is also understood that the number of repetitions (repetition number) of one transport block configuration is N, etc., and the present application is not limited thereto.

It should be noted that, in each embodiment of the present application, N transport blocks may be replaced by transport blocks carried on N resources. The N number of repetitions of a transport block may be carried in the N number of resources, where the N number of repetitions of a transport block may be understood as the transport block on the N number of resources being the same transport block, and may be understood as the number of repetitions of a transport block configuration (repetit ion number) being N, etc., and the application is not limited thereto; or the N resources may carry one transport block (it may also be understood that a TB is divided into multiple parts and carried on multiple resources respectively); or the N resources may carry multiple repetitions of multiple transport blocks. The application is not limited in this regard.

In embodiments of the present application, N transport blocks may be replaced with N resources. Further, the multiplexing mode of the transmission block can be replaced by a multiplexing mode of resources, and the mapping relation between the space related parameters and the transmission block can be replaced by the mapping relation between the space related parameters and the resources. For example, the mapping relationship between K spatial correlation parameters and N transport blocks may be replaced by the mapping relationship between K spatial correlation parameters and N resources. Further, the transport blocks used for demodulation may be replaced with transport blocks used on the corresponding resources. Further, one of the N transport blocks may be replaced with one of the N resources. It should be appreciated that there is no limitation in that the N transport blocks are the same transport block at this time.

K and N are integers greater than 1, and K.ltoreq.N. In the embodiments of the present application, K < N is exemplified, but the present application is not limited thereto.

Specifically, the first indication information may be transmitted through at least one of the second indication information, the third indication information, and the fourth indication information. The second indication information may be carried through radio resource control (radio resource control, RRC) signaling, the third indication information may be carried through medium access control element (MEDIA ACCESS control-element, MAC-CE) signaling, and the fourth indication information may be carried through downlink control information (downlink control information, DCI) signaling.

The first indication information may be indicated jointly by the second indication information, the third indication information, and the fourth indication information. The second indication information is used for indicating the spatial correlation parameters of the plurality of candidates, the third indication information is used for indicating the spatial correlation parameters of the plurality of candidates, which are activated, and the fourth indication information is used for indicating K spatial correlation parameters of the plurality of activated spatial correlation parameters.

The first indication information may also be transferred through one of the second indication information, the third indication information, or the fourth indication information, for example. I.e. one of the second indication information, the third indication information or the fourth indication information may be used to indicate K spatially related parameters.

The first indication information may also be transferred by the second indication information and the third indication information, for example. Wherein the second indication information may be used to indicate spatial correlation parameters of the plurality of candidates, and the third indication information may be used to indicate K spatial correlation parameters among the spatial correlation parameters of the plurality of candidates.

The first indication information may also be transferred by the third indication information and the fourth indication information, for example. Wherein the third indication information may be used to indicate spatial correlation parameters of the plurality of candidates, and the fourth indication information may be used to indicate K spatial correlation parameters among the spatial correlation parameters of the plurality of candidates.

The first indication information may also be transferred by the second indication information and the fourth indication information, for example. Wherein the second indication information may be used to indicate spatial correlation parameters of the plurality of candidates, and the fourth indication information may be used to indicate K spatial correlation parameters among the spatial correlation parameters of the plurality of candidates.

It should be noted that, the first indication information is used to indicate K spatial related parameters of receiving N transport blocks, and it may also be understood that the first indication information is used to indicate K spatial related parameters and N transport blocks, where the K spatial related parameters are used to receive N transport blocks. The first indication information is used to indicate K spatial correlation parameters of the N transport blocks, and it may also be understood that the first indication information is used to indicate K spatial correlation parameters, where the K spatial correlation parameters are used to receive the N transport blocks.

S502, the network equipment determines the mapping relation between K space related parameters and N transmission blocks.

Specifically, the network device may determine, according to the multiplexing manner of the N transport blocks, a mapping relationship between the K spatial correlation parameters and the N transport blocks.

The multiplexing mode of the transport block may include at least one of space division multiplexing (space division multiplexing, SDM), time division multiplexing (time division multiplexing, TDM), and frequency division multiplexing (frequency division multiplexing, FMD).

It should be noted that, in the embodiment of the present application, in order to describe the mapping relationship between K spatial correlation parameters and N transport blocks clearly, a concept of grouping N transport blocks is introduced. However, the method is not limited to the operation of performing the grouping in the actual application or standard, and is not limited to the order of performing the mapping of the N transmission groups and the N transmission blocks with the K spatial correlation parameters in the actual application or standard, so long as the mapping relationship of the K spatial correlation parameters with the N transmission blocks is realized, that is, the method is within the protection scope of the present application.

It should also be noted that, in the embodiments of the present application, the sorting of the N transport blocks or the sorting of the K spatial parameters is merely for convenience of description, and the sorting action may be performed or not performed in an actual application or standard. It can be understood that, in this step S502, the network device may obtain the mapping relationship between K spatial related parameters and N transport blocks instead. At this time, the mapping relationship in the embodiments of the present application may be determined by the network device or a specific module inside the network device, or may be obtained by the network device from other network elements.

It should be noted that, in the embodiment of the present application, "the mapping relationship between K spatial related parameters and N transport blocks" may also be described as "the mapping relationship between N transport blocks and K spatial related parameters"; the K space-related parameters arranged according to the sequence A are mapped to N transmission blocks arranged according to the sequence B; it can also be described that N transport blocks arranged in order B are mapped to K spatially related parameters arranged in order a. It should be understood that, in the embodiment of the present application, for convenience of description, the ordering of the K spatial correlation parameters and the N transport blocks is not intended to be limited to performing the ordering action in practical application or standard, so long as the same mapping relationship between the K spatial correlation parameters and the N transport blocks is implemented, that is, the application is within the protection scope.

The N transport blocks may be grouped according to a multiplexing manner of the N transport blocks and mapped with K spatial correlation parameters according to a grouping order. Or the N transmission blocks and K space related parameters can be mapped and regrouped.

The mapping relation between the N transmission blocks and the K space related parameters mainly comprises:

Optionally, the N transport blocks adopt a multiplexing manner, where the N transport blocks include (are divided into) K groups of transport blocks, and a mapping relationship between the K spatial correlation parameters and the N transport blocks includes: the K spatial correlation parameters arranged according to the first order are mapped sequentially to K groups of transport blocks arranged according to the order corresponding to the one multiplexing mode.

That is, each spatial correlation parameter corresponds to a group of transport blocks, and the groups are arranged in the order corresponding to the multiplexing mode. Further, the N transport blocks may be divided into K groups of transport blocks according to the order corresponding to the multiplexing mode.

The N transport blocks may be equally divided into K groups of transport blocks in the order corresponding to the multiplexing mode, which is understood to be each group of transport blocksThe last group of transport blocks comprises/>A plurality of transport blocks; it can also be understood that the ith group of transport blocks includes the/>, of the N transport blocksTo/>The last group of transmission blocks, namely the Kth group of transmission blocks, comprises the/>, of N transmission blocks, wherein i is an integer and 1 is less than or equal to i is less than or equal to K-1From transport block to nth transport block.

It should be noted that, for the N transport blocks with a frequency division multiplexing manner, since the channel characteristics of the transport blocks close to the frequency domain are more similar, by the mapping method, a better transport block merging effect can be obtained, and in addition, the transport of the transport blocks can be completed more quickly by adopting the frequency division multiplexing manner, so as to reduce the transmission delay. For N transmission blocks of time division multiplexing, frequent switching of beam or space related parameters can be reduced by the mapping method, and the implementation complexity of terminal equipment is reduced.

Illustratively, for the multiplexing mode being a frequency division multiplexing mode, the basis of the packet may include: the transport blocks within a group are frequency domain contiguous, or QCL dependent, or in one sub-band, or in one CC, or in one BWP. For the multiplexing mode being a time division multiplexing mode, the basis of the packet may include: the transport blocks within a group are time-domain contiguous or within one time unit.

If the N transport blocks adopt a multiplexing mode of time division multiplexing and frequency division multiplexing, the N transport blocks comprise M groups of transport blocks; the mapping relation between the K space related parameters and the N transmission blocks comprises: the ith spatial correlation parameter in the K spatial correlation parameters arranged according to the first sequence is mapped to the Kxj+i group of transmission blocks in the M groups of transmission blocks, wherein i and j are integers, i is more than or equal to 1 and less than or equal to K, K is more than or equal to 1 and less than or equal to K+i and less than or equal to M, Representing an upward rounding.

Further, the N transport blocks may be divided into M groups of transport blocks according to the first multiplexing manner, where M is a positive integer, and the M groups of transport blocks are arranged in a sequence corresponding to the second multiplexing manner. The first multiplexing mode is time division multiplexing, and the second multiplexing mode is frequency division multiplexing; or the first multiplexing mode is frequency division multiplexing, and the second multiplexing mode is time division multiplexing.

Or, if the N transport blocks adopt a multiplexing mode of time division multiplexing and frequency division multiplexing, the N transport blocks are divided into M groups of transport blocks according to the first multiplexing mode; the mapping relation between the K space related parameters and the N transmission blocks comprises: the ith space-related parameter in the K space-related parameters arranged according to the first order is mapped to the Kxj+i-th group of transmission blocks in the M groups of transmission blocks arranged according to the order corresponding to the second multiplexing mode, wherein i and j are integers, i is equal to or less than 1 and equal to or less than K, K is equal to or less than 1 and equal to or less than M, Representing a rounding up, M groups of transport blocks. The first multiplexing mode is time division multiplexing, and the second multiplexing mode is frequency division multiplexing; or the first multiplexing mode is frequency division multiplexing, and the second multiplexing mode is time division multiplexing.

In particular, as a possible implementation, when the terminal device has a single active antenna panel (panel), the first multiplexing mode is frequency division multiplexing, and the second multiplexing mode is time division multiplexing; when the terminal device has a plurality of activated antenna panels, the first multiplexing mode is time division multiplexing, and the second multiplexing mode is frequency division multiplexing. The number of the antenna panels activated by the terminal equipment can be directly or indirectly indicated by the network equipment, can be displayed, implicitly, directly or indirectly reported by the terminal equipment, and can be reported by the terminal equipment according to the capability of the terminal equipment.

Alternatively, it can be said that the first multiplexing mode is frequency division multiplexing and the second multiplexing mode is time division multiplexing, which is suitable for the case when the terminal device has a single activated antenna panel (panel). The first multiplexing mode is time division multiplexing, and the second multiplexing mode is frequency division multiplexing, which is suitable for the case when the terminal device has a plurality of activated antenna panels.

Alternatively, it can be said that the first multiplexing mode is frequency division multiplexing and the second multiplexing mode is time division multiplexing, which is applicable in the case when the terminal device has a single antenna panel (panel), optionally activated. The first multiplexing mode is time division multiplexing and the second multiplexing mode is frequency division multiplexing applicable in case the terminal device has a plurality of antenna panels, optionally activated.

The first multiplexing mode is space division multiplexing, and the second multiplexing mode is time division multiplexing or frequency division multiplexing; it can also be understood that the K spatial related parameters are mapped to the spatial multiplexing transmission blocks preferentially, and the method can obtain better spatial multiplexing effect.

The first multiplexing mode is time division multiplexing, and the second multiplexing mode is frequency division multiplexing; it can also be understood that the K spatial correlation parameters are mapped to the time division multiplexed transport blocks preferentially, and the method can obtain better time domain diversity effect.

The first multiplexing mode is frequency division multiplexing, and the second multiplexing mode is time division multiplexing; it can also be understood that the K spatially related parameters are mapped preferentially to the frequency division multiplexed transport blocks, the method can obtain better frequency domain diversity effect, or the method can avoid frequent beam switching.

For example, as shown in fig. 6, assuming that k=2, n=6, and m=3, i.e., two spatially related parameters TCI1-TCI2 are mapped to six identical transport blocks TB1-TB6, the first group of transport blocks includes TB1-TB2, the second group of transport blocks includes TB3-TB4, the third group of transport blocks includes TB5-TB6, TCI1 may be mapped to the first group of transport blocks TB1-TB2, TCI2 may be mapped to the second group of transport blocks TB3-TB4, and TCI1 may be re-mapped to the third group of transport blocks TB5-TB6. It will be appreciated that the multiplexing mode of using time division multiplexing and then frequency division multiplexing is shown in fig. 6, and the multiplexing mode of using frequency division multiplexing and then time division multiplexing is equally applicable to the embodiment of the present application and is not repeated here.

Referring to fig. 6, when a resource block TB is replaced with a resource R (e.g., TB1 is replaced with R1, TB2 is replaced with R2, etc.), and illustratively, assuming that k=2, n=6, m=3, i.e., two spatially related parameters TCI1-TCI2 are mapped to six resources R1-R6, a first set of resources includes R1-R2, a second set of resources includes R3-R4, a third set of resources includes R5-R6, TCI1 may be mapped to the first set of resources R1-R2, TCI2 may be mapped to the second set of resources R3-R4, and TCI1 is re-mapped to the third set of resources R5-R6. It will be appreciated that the first multiplexing mode is frequency division multiplexing and the second multiplexing mode is time division multiplexing, which is shown in fig. 6. The first multiplexing mode is a time division multiplexing mode, and the second multiplexing mode is a frequency division multiplexing mode, which is also applicable to the embodiment of the present application and is not repeated here.

In the embodiment of the application, the first sequence is as follows: the identification of the spatial correlation parameters is from small to large, or the identification of the spatial correlation parameters is from large to small, or the sequence of the K spatial correlation parameters indicated by the first indication information. The embodiment of the present application is described by taking the order of the signs of the spatially related parameters from small to large as an example, but is not intended to be limiting.

The corresponding sequence of the multiplexing mode of the space division multiplexing is as follows: the order of the indexes of the demodulation reference signal ports from small to large, the order of the indexes of the demodulation reference signal ports from large to small, the order of the indexes of the demodulation reference signal port groups from small to large, the order of the indexes of the demodulation reference signal code division multiplexing (code division multiplexing, CDM) groups from small to large, the order of the indexes of the demodulation reference signal CDM groups from large to small, the order of the indexes of the demodulation reference signal port groups indicated by an antenna port (antenna port) word field from small to large, the order of the indexes of the demodulation reference signal port groups indicated by an antenna port word field from large to small, or the order of the indexes of the demodulation reference signal ports indicated by an antenna port word field from small to large, or the order of the indexes of the demodulation reference signal ports indicated by an antenna port word field from large to small. Each or every few demodulation reference signal ports, demodulation reference signal port groups, demodulation reference signal CDM groups are used to demodulate one of the N transport blocks. The embodiments of the present application are described by taking the order of the indexes of the demodulation reference signal ports from small to large as an example, but are not intended to be limiting.

The corresponding sequence of the multiplexing mode of the space division multiplexing is as follows: the sequence of the indexes of the demodulation reference signal ports from small to large, or the sequence of the indexes of the demodulation reference signal ports from large to small, or the sequence of the indexes of the demodulation reference signal port groups indicated by the antenna port word fields from small to large, or the sequence of the indexes of the demodulation reference signal port groups indicated by the antenna port word fields from large to small, or the sequence of the indexes of the demodulation reference signal ports indicated by the antenna port word fields from small to large, or the sequence of the indexes of the demodulation reference signal ports indicated by the antenna port word fields from large to small; each or every few demodulation reference signal ports, demodulation reference signal port groups correspond to one of N resources.

Illustratively, the index of the demodulation reference signal port may refer to a DMRS port index, for example: the DMRS port indexes may be 8, 9, and 10, and the order of the DMRS port indexes from small to large is 8, 9, and 10, and the order of the DMRS port indexes from large to small is 10, 9, and 8.

Illustratively, the demodulation reference signal port group may refer to the DMRS CDM group, e.g.: the DMRS CDM group includes at most 3 identifiers of 00, 10, and 11, respectively, and the order of the indexes of the DMRS CDM group from small to large is 00, 10, and 11, and the order of the indexes of the DMRS CDM group from large to small is 11, 10, and 00. Illustratively, the demodulation reference signal port group may refer to one or more DMRS CDM groups, such as: the DMRS CDM group includes at most 3 identifiers of 00, 10, and 11, respectively, and the order of the indexes of the DMRS CDM group from small to large is 00, 10, and 11, and the order of the indexes of the DMRS CDM group from large to small is 11, 10, and 00. For example: the N resources comprise 2 space division resources (R1 and R2), and K space related parameters are TCI1 and TCI2; wherein, space division resource R1 corresponds to all or part of ports in DMRS CDM group 00, and space division resource R2 corresponds to all or part of ports in DMRS CDM groups 01, 11. Then TCI1 maps to R1 and TCI2 maps to R2.

The corresponding sequence of the multiplexing mode of the time division multiplexing is as follows: the indexes of the time domain resources are in an order from small to large or in an order from large to small, and each time domain resource is used for bearing one transmission block in the N transmission blocks. The index of the time domain resource may be a symbol (symbol) index, a slot (slot) index, or a subframe (subframe) index. Further, the index of the time domain resource may be an index of a starting position of the time domain resource of the bearer transport block, and may also be an index of a stopping position of the time domain resource of the bearer transport block. The embodiments of the present application are described in the order of the indexes of the time domain resources from small to large, but are not intended to be limiting.

It should be understood that in the present application, the "index of time domain resources" may also be replaced by the "index of time units". The index of the time domain resource may refer to an index of the time domain resource in which the transport block is located, or the index of the time unit may refer to an index of the time unit in which the transport block is located.

It should also be understood that the time unit in the present application may be one or more radio frames, one or more subframes, one or more slots, one or more minislots (mini slots), one or more orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) symbols defined in the LTE or 5G NR system, or a time window formed by a plurality of frames or subframes, such as a system information (system information, SI) window.

The corresponding sequence of the multiplexing modes of the frequency division multiplexing is as follows: the indexes of the frequency domain resources are in order from small to large or in order from large to small, wherein each frequency domain resource is used for bearing one transmission block in the N transmission blocks. The index of the frequency domain resource may be a Resource Block (RB) index, a subband index where a transport block is located, a component carrier (component carrier, CC) index where a transport block is located, or an index of a bandwidth region (BWP) where a transport block is located. Further, the index of the frequency domain resource may be an index of a starting position of the frequency domain resource of the carrier transport block, or an index of a stopping position of the frequency domain resource of the carrier transport block. The embodiments of the present application are described in order of the index of the frequency domain resource from small to large, but are not intended to be limiting.

As illustrated in fig. 7 to 9, the multiplexing mode in fig. 7 is time division multiplexing, the multiplexing mode in fig. 8 is frequency division multiplexing, and the multiplexing mode in fig. 9 is space division multiplexing. Assuming that k=2, n=6, i.e. two spatially related parameters TCI1-TCI2 are mapped to six identical transport blocks TB1-TB6, the first set of transport blocks comprising TB1-TB3 and the second set of transport blocks comprising TB4-TB6, TCI1 may be mapped to transport blocks TB1-TB3 and TCI2 may be mapped to transport blocks TB4-TB6. For the multiplexing manner of time division multiplexing shown in fig. 7, frequent switching of beams can be effectively reduced. For the multiplexing mode of frequency division multiplexing shown in fig. 8, because the channel characteristics of the transmission blocks close to the frequency domain are more similar, a better combination effect of the transmission blocks can be obtained, in addition, the transmission of the transmission blocks can be completed more quickly by adopting the frequency division multiplexing mode, and the transmission delay is reduced. For the multiplexing scheme of the space division multiplexing shown in fig. 9, a better space division multiplexing effect can be obtained.

As illustrated in fig. 7 to 9, the multiplexing mode in fig. 7 is time division multiplexing, the multiplexing mode in fig. 8 is frequency division multiplexing, and the multiplexing mode in fig. 9 is space division multiplexing. Assuming that the transport block TB is replaced by a resource R, assuming that k=2, n=6, i.e. two spatially dependent parameters TCI1-TCI2 are mapped to six resources R1-R6, a first set of resources comprising R1-R3 and a second set of resources comprising R4-R6, TCI1 may be mapped to resources R1-R3 and TCI2 may be mapped to resources R4-R6. For the multiplexing manner of time division multiplexing shown in fig. 7, frequent switching of beams can be effectively reduced. For the multiplexing mode of frequency division multiplexing shown in fig. 8, because the frequency domain is close to the resource channel characteristic more like, a better information merging effect can be obtained, in addition, the transmission of the transmission block can be completed more quickly by adopting the frequency division multiplexing mode, and the transmission delay is reduced. For the multiplexing scheme of the space division multiplexing shown in fig. 9, a better space division multiplexing effect can be obtained.

Note that when N is not divisible by K, the number of transport blocks in each group of transport blocks may be different.

For example, as shown in fig. 10, assuming that k=2, n=7, i.e. two spatially related parameters TCI1-TCI2 are mapped to seven identical transport blocks TB1-TB7, the first group of transport blocks comprises TB1-TB4, the second group of transport blocks comprises TB5-TB7, then TCI1 may be mapped to transport blocks TB1-TB4 and TCI2 may be mapped to transport blocks TB5-TB7, as illustrated by the multiplexing method taking time division multiplexing as an example. For example, as shown in fig. 10, taking the multiplexing manner as an example of time division multiplexing, the transport block TB is replaced by the resource R, and assuming that k=2 and n=7, that is, two spatially related parameters TCI1-TCI2 are mapped to seven resources R1-R7, the first group of resources includes R1-R4, the second group of resources includes R5-R7, TCI1 may be mapped to resources R1-R4 and TCI2 may be mapped to resources R5-R7.

The basis for the grouping of the N transport blocks with K spatially related parameters is described above and is not repeated here.

Optionally, the mapping relation between the K spatial correlation parameters and the N transport blocks includes: the K spatially related parameters arranged in the first order are mapped to the N transport blocks in sequence. Alternatively, the K spatially related parameter loops arranged in the first order are mapped sequentially to the N transport blocks. Or, the ith space-related parameter in the K space-related parameters arranged according to the first order is mapped to the kth x j+i transport block in the N transport blocks, where i and j are integers, and 1.ltoreq.i.ltoreq.k, 1.ltoreq.k.times.j+i.ltoreq.n, Representing an upward rounding.

It should be noted that when K < N, one spatial correlation parameter may be mapped to a plurality of transport blocks, so that each transport block may be guaranteed to have a corresponding spatial correlation parameter.

Further, if the N transport blocks adopt a multiplexing manner, the N transport blocks are arranged in a sequence corresponding to the multiplexing manner.

As illustrated in fig. 11 to 13, the multiplexing method of fig. 11 is time division multiplexing, the multiplexing method of fig. 12 is frequency division multiplexing, and the multiplexing method of fig. 13 is space division multiplexing. Assuming k=3, n=6, i.e. three spatially related parameters TCI1-TCI3 are mapped to six identical transport blocks TB1-TB6, TCI1 may be mapped to TB1, TB4, TCI2 to TB2, TB5, TCI3 to TB3, TB6. For the multiplexing scheme of time division multiplexing shown in fig. 11, diversity gain can be obtained. For the multiplexing manner of frequency division multiplexing shown in fig. 12, a frequency domain diversity gain can be obtained, especially when the spacing of a plurality of frequency division multiplexed transport blocks in the frequency domain is greater than a preset threshold. For the multiplexing mode of space division multiplexing shown in fig. 13, the transmission delay of the transport block can be completed faster, and the system performance can be improved.

As illustrated in fig. 11 to 13, the multiplexing method of fig. 11 is time division multiplexing, the multiplexing method of fig. 12 is frequency division multiplexing, and the multiplexing method of fig. 13 is space division multiplexing. Replacing the transport block TB with the resource R, assuming k=3, n=6, i.e. three spatially related parameters TCI1-TCI3 map to six resources R1-R6, TCI1 may map to R1, R4, TCI2 to R2, R5, TCI3 to R3, R6. For the multiplexing scheme of time division multiplexing shown in fig. 11, diversity gain can be obtained. For the multiplexing manner of frequency division multiplexing shown in fig. 12, a frequency domain diversity gain can be obtained, especially when the spacing between the plurality of frequency division multiplexing resources in the frequency domain is greater than a preset threshold. For the multiplexing mode of space division multiplexing shown in fig. 13, the transmission delay of the resource can be completed faster, and the system performance can be improved.

It should be noted that, when N is not divisible by K, the number of resources mapped by each spatial correlation parameter may be different.

For example, as shown in fig. 14, assuming that k=3, n=7, i.e. three spatially related parameters TCI1-TCI3 are mapped to seven identical transport blocks TB1-TB7, TCI1 may be mapped to TB1, TCI2 to TB2, TCI3 to TB4, TCI1 to TB5, and so on, and finally TCI1 may be mapped to TB1, TB4, TB7, TCI2 to TB2, TB5, and TCI3 to TB3, TB6, by taking the multiplexing method as an example of time division multiplexing.

For example, as shown in fig. 14, taking the multiplexing manner as an example of time division multiplexing, the resource block TB is replaced by the resource R, assuming that k=3, n=7, that is, three spatially related parameters TCI1-TCI3 are mapped to seven resources R1-R7, TCI1 may be mapped to R1, TCI2 is mapped to R2, TCI3 is mapped to R4, TCI1 is re-mapped to R5, and so on, and finally, TCI1 may be mapped to R1, R4, R7, TCI2 may be mapped to R2, R5, and TCI3 may be mapped to R3, R6.

If the N transport blocks adopt at least two multiplexing modes, the at least two multiplexing modes include a first multiplexing mode, the N transport blocks include M groups of transport blocks, M is a positive integer, and transport blocks in each group of transport blocks are arranged in a sequence corresponding to the first multiplexing mode.

Or, the N transport blocks may be at least two multiplexing modes, where the at least two multiplexing modes include a first multiplexing mode, and K spatial related parameters arranged according to a first order are mapped to transport blocks arranged according to a corresponding order of the first multiplexing mode in each group of transport blocks in order preferentially and sequentially, and then mapped between each group of transport blocks. Further, the K spatial correlation parameters arranged according to the first order are preferentially mapped to the transport blocks arranged according to the order corresponding to the first multiplexing mode in each group of transport blocks in turn, and then the mapping is repeated among the transport blocks in each group.

Or, the N transport blocks are divided into M groups of transport blocks according to the first multiplexing mode, where M is a positive integer, and the transport blocks in each group of transport blocks are arranged in a sequence corresponding to the first multiplexing mode.

Or, the N transport blocks adopt at least two multiplexing modes, where the at least two multiplexing modes include a first multiplexing mode, the N transport blocks are divided into M groups of transport blocks according to the first multiplexing mode, M is a positive integer, each group of transport blocks in the M groups of transport blocks includes at least two transport blocks, the at least two transport blocks are transport blocks multiplexed in the first multiplexing mode, and the at least two transport blocks are arranged in a sequence corresponding to the first multiplexing mode.

Or, at least two multiplexing modes are adopted by the N transmission blocks, the at least two multiplexing modes comprise a first multiplexing mode, the N transmission blocks comprise M groups of transmission blocks, M is a positive integer, and at least one group of transmission blocks in the M groups of transmission blocks are multiplexed by adopting the first multiplexing mode and are arranged according to the sequence corresponding to the first multiplexing mode.

Further, if the N transport blocks adopt two multiplexing modes, the M groups of transport blocks are arranged according to the sequence corresponding to the second multiplexing mode.

The first multiplexing mode is space division multiplexing, and the second multiplexing mode is time division multiplexing or frequency division multiplexing; or the first multiplexing mode is time division multiplexing, and the second multiplexing mode is frequency division multiplexing; or the first multiplexing mode is frequency division multiplexing, and the second multiplexing mode is time division multiplexing.

In particular, as a possible implementation, when the terminal device has a single active antenna panel (panel), the first multiplexing mode is time division multiplexing, and the second multiplexing mode is frequency division multiplexing; when the terminal device has a plurality of activated antenna panels, the first multiplexing mode is frequency division multiplexing, and the second multiplexing mode is time division multiplexing. The number of the antenna panels activated by the terminal equipment can be directly or indirectly indicated by the network equipment, can be displayed, implicitly, directly or indirectly reported by the terminal equipment, and can be reported by the terminal equipment according to the capability of the terminal equipment.

Alternatively, it can be said that the first multiplexing mode is time division multiplexing and the second multiplexing mode is frequency division multiplexing, which is suitable for the case when the terminal device has a single activated antenna panel (panel). The first multiplexing mode is frequency division multiplexing, and the second multiplexing mode is time division multiplexing, which is suitable for the case when the terminal device has a plurality of activated antenna panels.

Alternatively, it can be said that the first multiplexing mode is time division multiplexing and the second multiplexing mode is frequency division multiplexing, which is applicable in the case when the terminal device has a single antenna panel (panel), optionally activated (act ive). The first multiplexing mode is frequency division multiplexing and the second multiplexing mode is time division multiplexing applicable in case the terminal device has a plurality of antenna panels, optionally activated.

As shown in fig. 15 and fig. 16, the first multiplexing mode in fig. 15 is space division multiplexing, the second multiplexing mode is time division multiplexing, the transport blocks in each group of transport blocks are arranged in the order corresponding to the multiplexing mode of space division multiplexing, and the M groups of transport blocks are arranged in the order corresponding to the multiplexing mode of time division multiplexing. In fig. 16, the first multiplexing mode is space division multiplexing, the second multiplexing mode is frequency division multiplexing, the transport blocks in each group of transport blocks are arranged in the order corresponding to the multiplexing mode of space division multiplexing, and the M groups of transport blocks are arranged in the order corresponding to the multiplexing mode of frequency division multiplexing. Assuming that k=2, n=4, m=2, i.e. two spatially dependent parameters TCI1-TCI2 are mapped to four identical transport blocks TB1-TB4, the first set of transport blocks comprises TB1 and TB2, the second set of transport blocks comprises TB3 and TB4, and TB1 and TB2 are spatially multiplexed, TB3 and TB4 are spatially multiplexed, and the first set of transport blocks and the second set of transport blocks are time multiplexed. TCI1 may be mapped to TB1 and TB3, and TCI2 may be mapped to TB2 and TB4. When the first multiplexing mode adopts space division multiplexing, a better space division multiplexing effect can be obtained, namely, K space related parameters are mapped to the space division multiplexing transmission blocks preferentially, and a better space division multiplexing effect can be obtained.

As shown in fig. 15 and fig. 16, the first multiplexing mode in fig. 15 is space division multiplexing, the second multiplexing mode is time division multiplexing, the transport block TB is replaced by the resource R, the resources in each group of resources are arranged in the order corresponding to the multiplexing mode of space division multiplexing, and the M groups of resources are arranged in the order corresponding to the multiplexing mode of time division multiplexing. In fig. 16, the first multiplexing mode is space division multiplexing, the second multiplexing mode is frequency division multiplexing, the resources in each group of resources are arranged in the order corresponding to the multiplexing mode of space division multiplexing, and the M groups of resources are arranged in the order corresponding to the multiplexing mode of frequency division multiplexing. Assuming that k=2, n=4, and m=2, i.e., two spatially-correlated parameters TCI1-TCI2 are mapped to four resources R1-R4, the first set of resources includes R1 and R2, the second set of resources includes R3 and R4, and R1 and R2 are spatially multiplexed (e.g., R1 corresponds to DMRS port 0, R2 corresponds to DMRS port 2; e.g., R1 corresponds to all or part of DMRS ports in DMRS CDM set 0, R2 corresponds to all or part of DMRS ports in DMRS CDM sets 10 and 11), R3 and R4 are spatially multiplexed (e.g., R1 corresponds to DMRS port 0, R2 corresponds to DMRS port 2; e.g., R1 corresponds to all or part of DMRS ports in DMRS CDM set 0, R2 corresponds to all or part of DMRS ports in DMRS CDM sets 10 and 11), and the first set of resources are frequency-division multiplexed with the second set of resources. TCI1 may be mapped to R1 and R3, and TCI2 may be mapped to R2 and R4. When the first multiplexing mode adopts space division multiplexing, a better space division multiplexing effect can be obtained, namely, K space related parameters are mapped to space division multiplexing resources preferentially, and a better space division multiplexing effect can be obtained.

As shown in fig. 17A, 17B and 18, the first multiplexing mode in fig. 17A and 17B is time division multiplexing, the second multiplexing mode is frequency division multiplexing, the transport blocks in each group of transport blocks are arranged in the order corresponding to the multiplexing mode of time division multiplexing, and the M groups of transport blocks are arranged in the order corresponding to the multiplexing mode of frequency division multiplexing. In fig. 18, the first multiplexing mode is frequency division multiplexing, the second multiplexing mode is time division multiplexing, the transport blocks in each group of transport blocks are arranged in the order corresponding to the multiplexing mode of frequency division multiplexing, and the M groups of transport blocks are arranged in the order corresponding to the multiplexing mode of time division multiplexing. Assuming that k=2, n=4, m=2, i.e. two spatially related parameters TCI1-TCI2 are mapped to four identical transport blocks TB1-TB4, the first set of transport blocks comprises TB1 and TB2 and the second set of transport blocks comprises TB3 and TB4. In fig. 17A and 17B, TB1 and TB2 are time-division multiplexed, TB3 and TB4 are time-division multiplexed, and the first group of transport blocks and the second group of transport blocks are frequency-division multiplexed; in fig. 18, TB1 and TB2 are frequency division multiplexed, TB3 and TB4 are frequency division multiplexed, and the first group of transport blocks and the second group of transport blocks are time division multiplexed. TCI1 may be mapped to TB1 and TB3, and TCI2 may be mapped to TB2 and TB4. The transmission scheme shown in fig. 17A, 17B, and 18 can effectively reduce decoding delay compared to the transmission scheme entirely employing time division multiplexing in fig. 7.

As shown in fig. 17A, 17B and 18, the first multiplexing mode in fig. 17A and 17B is time division multiplexing, the second multiplexing mode is frequency division multiplexing, the transport block TB is replaced by the resource R, the resources in each group of resources are arranged in the order corresponding to the multiplexing mode of time division multiplexing, and the M groups of resources are arranged in the order corresponding to the multiplexing mode of frequency division multiplexing. In fig. 18, the first multiplexing mode is frequency division multiplexing, the second multiplexing mode is time division multiplexing, the resources in each group of resources are arranged in the order corresponding to the multiplexing mode of frequency division multiplexing, and the M groups of resources are arranged in the order corresponding to the multiplexing mode of time division multiplexing. Assuming that k=2, n=4, m=2, i.e. two spatially dependent parameters TCI1-TCI2 map to four resources R1-R4, the first set of resources comprises R1 and R2, and the second set of resources comprises R3 and R4. In fig. 17A and 17B, R1 is time division multiplexed with R2, R3 is time division multiplexed with R4, and frequency division multiplexed between the first set of resources and the second set of resources; in fig. 18, R1 and R2 are frequency division multiplexed, R3 and R4 are frequency division multiplexed, and the first set of resources and the second set of resources are time division multiplexed. The spatially dependent parameters may be mapped to the resources in a fixed order, as shown in fig. 17A and 18, TCI1 may be mapped to R1 and R3, and TCI2 may be mapped to R2 and R4. Alternatively, the spatially related parameters may be mapped to the resources in reverse order, as shown in FIG. 17B, TCI1 may be mapped to R1 and R4, and TCI2 may be mapped to R2 and R3. The transmission scheme shown in fig. 17A, 17B, and 18 can effectively reduce decoding delay compared to the transmission scheme entirely employing time division multiplexing in fig. 7. The transmission scheme shown in fig. 17B can obtain better robustness than the transmission scheme shown in fig. 17A. For example, a TB is transmitted by two transmission points (transmission point, TRP), TRP1 transmits information on resources R1 and R4, TRP 2 transmits information on R2 and R4, respectively, and the frequency hopping gain can be obtained.

If the N transmission blocks adopt three multiplexing modes, the transmission blocks of each group are arranged according to the sequence corresponding to the second multiplexing mode and then arranged according to the sequence corresponding to the third multiplexing mode.

The first multiplexing mode is space division multiplexing, the second multiplexing mode is time division multiplexing, the third multiplexing mode is frequency division multiplexing, or the first multiplexing mode is space division multiplexing, the second multiplexing mode is frequency division multiplexing, and the third multiplexing mode is time division multiplexing.

In particular, as a possible implementation, when the terminal device has a single active antenna panel (panel), the second multiplexing mode is time division multiplexing, and the third multiplexing mode is frequency division multiplexing; when the terminal device has a plurality of activated antenna panels, the second multiplexing mode is frequency division multiplexing, and the third multiplexing mode is time division multiplexing. The number of the antenna panels activated by the terminal equipment can be directly or indirectly indicated by the network equipment, can be displayed, implicitly, directly or indirectly reported by the terminal equipment, and can be reported by the terminal equipment according to the capability of the terminal equipment.

Alternatively, it can be said that the second multiplexing mode is time division multiplexing and the third multiplexing mode is frequency division multiplexing, which is applicable when the terminal device has a single activated antenna panel (panel). The second multiplexing mode is frequency division multiplexing, and the third multiplexing mode is time division multiplexing, which is suitable for the case when the terminal device has a plurality of activated antenna panels.

Alternatively, it can be said that the second multiplexing mode is time division multiplexing and the third multiplexing mode is frequency division multiplexing, which is applicable in the case when the terminal device has a single antenna panel (panel), optionally activated (act ive). The second multiplexing mode is frequency division multiplexing and the third multiplexing mode is time division multiplexing applicable in the case when the terminal device has a plurality of antenna panels, optionally activated.

As shown in fig. 19 and fig. 20, the first multiplexing mode in fig. 19 is space division multiplexing, the second multiplexing mode is time division multiplexing, the third multiplexing mode is frequency division multiplexing, the transport blocks in each group of transport blocks are arranged according to the sequence corresponding to the multiplexing mode of space division multiplexing, and the M groups of transport blocks are arranged according to the sequence corresponding to the multiplexing mode of time division multiplexing and then arranged according to the sequence corresponding to the multiplexing mode of frequency division multiplexing. In fig. 20, the first multiplexing mode is space division multiplexing, the second multiplexing mode is frequency division multiplexing, the third multiplexing mode is time division multiplexing, the transport blocks in each group of transport blocks are arranged according to the sequence corresponding to the multiplexing mode of space division multiplexing, and the M groups of transport blocks are arranged according to the sequence corresponding to the multiplexing mode of frequency division multiplexing first and then according to the sequence corresponding to the multiplexing mode of time division multiplexing. Assuming that k=2, n=8, m=4, i.e. two spatially dependent parameters TCI1-TCI2 are mapped to eight identical transport blocks TB1-TB8, the first set of transport blocks comprises TB1 and TB2, the second set of transport blocks comprises TB3 and TB4, the third set of transport blocks comprises TB5 and TB6, and the second set of transport blocks comprises TB7 and TB8; and TB1 and TB2, TB3 and TB4, TB4 and TB5, and TB6 and TB 7. In fig. 19, the first set of transport blocks is time division multiplexed with the second set of transport blocks, the third set of transport blocks is time division multiplexed with the fourth set of transport blocks, and the first and second sets of transport blocks are frequency division multiplexed with the third and fourth sets of transport blocks; in fig. 20, the first set of transport blocks and the second set of transport blocks are frequency division multiplexed, the third set of transport blocks and the fourth set of transport blocks are frequency division multiplexed, and the first set of transport blocks and the second set of transport blocks are time division multiplexed with the third set of transport blocks and the fourth set of transport blocks. TCI1 may be mapped to TB1, TB3, TB5, TB7, TCI2 may be mapped to TB2, TB4, TB6, TB8.

As shown in fig. 19 and fig. 20, the first multiplexing mode in fig. 19 is space division multiplexing, the second multiplexing mode is time division multiplexing, the third multiplexing mode is frequency division multiplexing, the resources in each group of resources are arranged according to the sequence corresponding to the multiplexing mode of space division multiplexing, and the M groups of resources are arranged according to the sequence corresponding to the multiplexing mode of frequency division multiplexing after being arranged according to the sequence corresponding to the multiplexing mode of time division multiplexing. In fig. 20, the first multiplexing mode is space division multiplexing, the second multiplexing mode is frequency division multiplexing, the third multiplexing mode is time division multiplexing, the resources in each group of resources are arranged according to the sequence corresponding to the multiplexing mode of space division multiplexing, and the M groups of resources are arranged according to the sequence corresponding to the multiplexing mode of frequency division multiplexing and then according to the sequence corresponding to the multiplexing mode of time division multiplexing. Replacing a transport block with resources, assuming k=2, n=8, m=4, i.e. two spatially related parameters TCI1-TCI2 are mapped to eight resources R1-R8, a first set of resources comprising R1 and R2, a second set of resources comprising R3 and R4, a third set of resources comprising R5 and R6, a second set of resources comprising R7 and TB8; and R1 and R2 are spatially multiplexed, R3 and R4 are spatially multiplexed, R4 and R5 are spatially multiplexed, and R6 and R7 are spatially multiplexed. In fig. 19, the first set of resources is time-division multiplexed with the second set of resources, the third set of resources is time-division multiplexed with the fourth set of resources, and the first and second sets of resources are frequency-division multiplexed with the third and fourth sets of resources; in fig. 20, the first set of resources and the second set of resources are frequency-division multiplexed, the third set of resources and the fourth set of resources are frequency-division multiplexed, and the first set of resources and the second set of resources are time-division multiplexed. TCI1 may be mapped to R1, R3, R5, R7, TCI2 may be mapped to R2, R4, R6, R8.

It should be noted that, two multiplexing modes are adopted for the N transport blocks, and the terminal device may uniquely determine the order of the N transport blocks according to the first multiplexing mode and the second multiplexing mode. Three multiplexing modes are adopted for the N transport blocks, and the terminal equipment can uniquely determine the sequence of the N transport blocks according to the first multiplexing mode, the second multiplexing mode and the third multiplexing mode. That is, by the above method, the terminal device can determine the order of the N transport blocks.

In the embodiment of the present application, the repetition number N of the transport block may be indicated by one or more parameters.

For example, in one approach, one parameter indication may be used separately for each multiplexing approach. For example, the number of identical transmissions for time division multiplexing is N1, the number of identical transmission blocks for frequency division multiplexing is N2, and the number of identical transmission blocks for space division multiplexing is N3. Or defining the repetition number of the transmission blocks of each multiplexing mode, for example, the repetition number of the transmission blocks of the multiplexing mode is time division multiplexing is N1 times, the repetition number of the transmission blocks of the multiplexing mode is frequency division multiplexing is N2 times, and the repetition number of the transmission blocks of the multiplexing mode is space division multiplexing is N3 times.

Illustratively, in another manner, the total number N of repetition times of the transport block may be directly indicated, i.e. the total number N of repetition times of the transport block is indicated only, regardless of the several multiplexing manners.

In the embodiment of the present application, the mapping relation between K spatial correlation parameters and N transport blocks may be determined by combining the redundancy versions (redundancy version, RV) of the transport blocks and/or the mapping order of modulation and coding strategies (modulation and coding scheme, MCS), or the mapping order of RV and/or MCS of the transport blocks may be determined according to the mapping relation between K spatial correlation parameters and N transport blocks. For example, transport blocks of the same RV use the same spatially related parameters (e.g., TCI ID). As another example, transport blocks of the same MCS use the same spatial correlation parameters (e.g., TCI ID). For another example: the same spatially related parameters (e.g., TCI ID) use the same MCS or RV.

It should be noted that, when only one multiplexing mode (for example, time division multiplexing) is adopted for the N transport blocks, the multiplexing mode may be de-emphasized, that is, the mapping relationship between the K spatial correlation parameters and the N transport blocks may be directly determined, which implicitly includes determining the mapping relationship between the K spatial correlation parameters and the N transport blocks according to the multiplexing mode of the N transport blocks.

In the present embodiment, the execution order of step S501 and step S502 is not limited. For example, S501 may be performed first and S502 may be performed second and S501 may be performed first, or S501 and S502 may be performed simultaneously.

S503, the terminal equipment determines the mapping relation between K space related parameters and N transmission blocks.

Reference is specifically made to the description in step S502, and is not repeated here.

In the present embodiment, the execution order of step S501 and step S503 is not limited. For example, S501 may be executed first and S503 may be executed second, or S501 and S503 may be executed simultaneously.

S504, the network equipment sends N transmission blocks according to the mapping relation.

For each transport block of the N transport blocks, the network device may send the transport block according to a spatially dependent parameter having a mapping relationship with the transport block.

S505, the terminal equipment receives N transmission blocks according to the mapping relation.

For each transport block of the N transport blocks, the terminal device may receive the transport block according to a spatially dependent parameter having a mapping relation with the transport block.

S506, the terminal equipment sends N transmission blocks according to the mapping relation.

S507, the network equipment receives N transmission blocks according to the mapping relation.

It should be noted that only one of steps S504-S505 and steps S506-S507 is executed. Wherein, steps S504-S505 are for PDSCH, where the spatial correlation parameter may be TCI or QCL, and steps S506-S507 are for PUSCH, where the spatial correlation parameter is spatial relationship information (spatial relation info).

In the present embodiment, the execution order of step S502 and step S504 is not limited. For example, S502 may be performed first and S504 may be performed later, or S502 and S504 may be performed simultaneously. In addition, steps S502 and S504 may be the same step, for example, the network device sends the N transport blocks according to the mapping relationship between the K spatial correlation parameters and the N transport blocks.

Similarly, in the present embodiment, the execution order of step S503 and step S505 is not limited. For example, S503 may be executed first and S505 may be executed second, or S503 and S505 may be executed simultaneously. In addition, steps S503 and S505 may be the same step, for example, the terminal device receives the N transport blocks according to the mapping relationship between the K spatial correlation parameters and the N transport blocks.

In the present embodiment, the execution order of step S502 and step S507 is not limited. For example, S502 may be executed first, S507 may be executed later, and S502 and S507 may be executed simultaneously. In addition, steps S502 and S507 may be the same step, for example, the network device receives the N transport blocks according to the mapping relationship between the K spatial correlation parameters and the N transport blocks.

Similarly, in the present embodiment, the execution order of step S503 and step S506 is not limited. For example, S503 may be performed first and S506 may be performed second, or S503 and S506 may be performed simultaneously. In addition, steps S503 and S506 may be the same step, and the terminal device sends the N transport blocks according to the mapping relationship between the K spatial correlation parameters and the N transport blocks.

According to the communication method provided by the embodiment of the application, the network equipment sends the first indication information to the terminal equipment, and correspondingly, the terminal equipment receives the first indication information from the network equipment, wherein the first indication information is used for indicating K space-related parameters of N transmission blocks to be received. The network device and the terminal device determine mapping relations between K space-related parameters and N transmission blocks. The network device sends N transport blocks according to the mapping relation, and correspondingly, the terminal device receives the N transport blocks according to the mapping relation. Or the terminal equipment sends N transport blocks according to the mapping relation, and correspondingly, the network equipment receives the N transport blocks according to the mapping relation. When the repeated transmission of the transport blocks is realized, the network equipment and the terminal equipment determine the mapping relation between the space related parameters and the transport blocks, so that the transmission or the reception of the transport blocks according to the space related parameters is known according to the mapping relation.

It will be appreciated that in the above embodiments, the method and/or steps implemented by the terminal device may also be implemented by a component (e.g., a chip or a circuit) that may be used in the terminal device, and the method and/or steps implemented by the network device may also be implemented by a component that may be used in the network device.

The scheme provided by the embodiment of the application is mainly introduced from the interaction angle among the network elements. Correspondingly, the embodiment of the application also provides a communication device which is used for realizing the various methods. The communication device may be a terminal device in the above method embodiment, or a device including the above terminal device, or a component that may be used for the terminal device; or the communication device may be a network device in the above method embodiment, or an apparatus including the above network device, or a component usable with the network device. It will be appreciated that the communication device, in order to achieve the above-described functions, comprises corresponding hardware structures and/or software modules performing the respective functions. Those of skill in the art will readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

The embodiment of the application can divide the functional modules of the communication device according to the above method embodiment, for example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module. The integrated modules may be implemented in hardware or in software functional modules. It should be noted that, in the embodiment of the present application, the division of the modules is schematic, which is merely a logic function division, and other division manners may be implemented in actual implementation.

For example, the communication device is taken as an example of the terminal device in the above method embodiment. Fig. 21 shows a schematic structural diagram of a terminal device 210. The terminal device 210 includes a processing module 2101 and a transceiver module 2102. The transceiver module 2102, which may also be referred to as a transceiver unit, is configured to perform a transmitting and/or receiving function, and may be, for example, a transceiver circuit, a transceiver, or a communication interface.

A transceiver module 2102 configured to receive first indication information, where the first indication information is configured to indicate receiving K spatial related parameters of N transport blocks, where the N transport blocks are the same transport blocks, K and N are integers greater than 1, and K is less than or equal to N; a processing module 2101, configured to determine mapping relationships between K spatial correlation parameters and N transmission blocks; the transceiver module 2102 is further configured to receive N transport blocks according to the mapping relationship.

Optionally, the processing module 2101 is specifically configured to: and determining the mapping relation between the K space related parameters and the N transport blocks according to the multiplexing mode of the N transport blocks, wherein the multiplexing mode comprises at least one of space division multiplexing, time division multiplexing and frequency division multiplexing.

Optionally, the N transport blocks adopt a multiplexing manner, where the N transport blocks include K groups of transport blocks; the mapping relation between the K space related parameters and the N transmission blocks comprises: the K spatial correlation parameters arranged according to the first order are mapped sequentially to K groups of transport blocks arranged according to the order corresponding to a multiplexing mode.

Optionally, the mapping relation between the K spatial correlation parameters and the N transport blocks includes: the K spatially related parameters arranged in the first order are mapped to the N transport blocks in sequence.

Optionally, the mapping relation between the K spatial correlation parameters and the N transport blocks includes: the ith spatial correlation parameter of the K spatial correlation parameters arranged according to the first sequence is mapped to the Kxj+i transport blocks of the N transport blocks, wherein i and j are integers, i is more than or equal to 1 and less than or equal to K, K is more than or equal to 1 and less than or equal to K+i and less than or equal to N, Representing an upward rounding.

Optionally, the N transport blocks adopt a multiplexing manner, and the N transport blocks are arranged in a sequence corresponding to the multiplexing manner.

Optionally, the N transport blocks adopt at least two multiplexing modes, where the at least two multiplexing modes include a first multiplexing mode, the N transport blocks include M groups of transport blocks, M is a positive integer, and transport blocks in each group of transport blocks are arranged in a sequence corresponding to the first multiplexing mode.

Optionally, the N transport blocks adopt two multiplexing modes, and the M groups of transport blocks are arranged according to the sequence corresponding to the second multiplexing mode.

Optionally, the first multiplexing mode is space division multiplexing, and the second multiplexing mode is time division multiplexing or frequency division multiplexing; or the first multiplexing mode is time division multiplexing, and the second multiplexing mode is frequency division multiplexing; or the first multiplexing mode is frequency division multiplexing, and the second multiplexing mode is time division multiplexing.

Optionally, the N transport blocks adopt three multiplexing modes, and each group of transport blocks is arranged according to the sequence corresponding to the second multiplexing mode and then arranged according to the sequence corresponding to the third multiplexing mode.

Optionally, the first multiplexing mode is space division multiplexing, the second multiplexing mode is time division multiplexing, the third multiplexing mode is frequency division multiplexing, or the first multiplexing mode is space division multiplexing, the second multiplexing mode is frequency division multiplexing, and the third multiplexing mode is time division multiplexing.

Optionally, the first order is: the identification of the spatial correlation parameters is from small to large, or the identification of the spatial correlation parameters is from large to small, or the sequence of the K spatial correlation parameters indicated by the first indication information.

Optionally, the sequence corresponding to the multiplexing mode of the space division multiplexing is: the sequence of the indexes of the demodulation reference signal ports from small to large, or the sequence of the indexes of the demodulation reference signal ports from large to small, or the sequence of the indexes of the demodulation reference signal port groups indicated by the antenna port word fields from small to large, or the sequence of the indexes of the demodulation reference signal port groups indicated by the antenna port word fields from large to small, or the sequence of the indexes of the demodulation reference signal ports indicated by the antenna port word fields from small to large, or the sequence of the indexes of the demodulation reference signal ports indicated by the antenna port word fields from large to small; each or every few demodulation reference signal ports or groups of demodulation reference signal ports are used to demodulate one of the N transport blocks.

Optionally, the sequence corresponding to the multiplexing mode of the time division multiplexing is: the index of the time domain resources is in order from small to large or the index of the time domain resources is in order from large to small, and each time domain resource is used for carrying one transport block in the N transport blocks.

Optionally, the sequence corresponding to the multiplexing mode of the frequency division multiplexing is: the indexes of the frequency domain resources are in order from small to large or in order from large to small, wherein each frequency domain resource is used for bearing one transmission block in N transmission blocks.

Optionally, the spatially dependent parameter indicates TCI information for spatially dependent information or transmission configuration.

Optionally, the N transport blocks adopt a multiplexing mode of time division multiplexing and frequency division multiplexing, and the N transport blocks include M groups of transport blocks; the mapping relation between the K space related parameters and the N transmission blocks comprises: the ith spatial correlation parameter in the K spatial correlation parameters arranged according to the first sequence is mapped to the Kxj+i group of transmission blocks in the M groups of transmission blocks, wherein i and j are integers, i is more than or equal to 1 and less than or equal to K, K is more than or equal to 1 and less than or equal to K+i and less than or equal to M, Representing an upward rounding.

All relevant contents of each step related to the above method embodiment may be cited to the function description of the corresponding functional module or the foregoing method side description, which are not repeated herein.

In the present embodiment, the terminal device 210 is presented in a form of dividing each functional module in an integrated manner. A "module" herein may refer to a particular ASIC, an electronic circuit, a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and/or other device that can provide the described functionality. In a simple embodiment, one skilled in the art will appreciate that the terminal device 210 may take the form of the terminal device 105 shown in fig. 2.

For example, the processor 180 in the terminal device 105 shown in fig. 2 may cause the terminal device 105 to execute the communication method in the above-described method embodiment by calling the computer-executable instructions stored in the memory 120.

Specifically, the functions/implementation of the processing module 2101 and the transceiver module 2102 in fig. 21 may be implemented by the processor 180 in the terminal device 105 shown in fig. 2 invoking computer-executable instructions stored in the memory 120. Or the function/implementation of the processing module 2101 in fig. 21 may be implemented by the processor 180 in the terminal device 105 shown in fig. 2 invoking computer-executable instructions stored in the memory 120, and the function/implementation of the transceiver module 2102 in fig. 21 may be implemented by the RF circuit 110 in the terminal device 105 shown in fig. 2.

Since the terminal device 105 provided in this embodiment can execute the above communication method, the technical effects that can be obtained by the terminal device can be referred to the above method embodiment, and will not be described herein.

Or, for example, the communication device is taken as an example of the network device in the above method embodiment. Fig. 22 shows a schematic diagram of a network device 220. The network device 220 includes a processing module 2201 and a transceiver module 2202. The transceiver module 2202, which may also be referred to as a transceiver unit, is configured to perform a transmitting and/or receiving function, and may be, for example, a transceiver circuit, a transceiver, or a communication interface.

A transceiver module 2202, configured to send first indication information, where the first indication information is used to indicate receiving K spatial related parameters of N transport blocks, where the N transport blocks are the same transport block, K and N are integers greater than 1, and K is less than or equal to N; a processing module 2201, configured to determine mapping relationships between K spatial related parameters and N transport blocks; the transceiver module 2202 is further configured to send N transport blocks according to the mapping relationship.

Optionally, the processing module 2201 is specifically configured to: and determining the mapping relation between the K space related parameters and the N transport blocks according to the multiplexing mode of the N transport blocks, wherein the multiplexing mode comprises at least one of space division multiplexing, time division multiplexing and frequency division multiplexing.

Optionally, the sequence corresponding to the multiplexing mode of the space division multiplexing is: the indexes of the demodulation reference signal ports are in the order from small to large, or the indexes of the demodulation reference signal ports are in the order from large to small, or the indexes of the demodulation reference signal port groups are in the order from small to large, or the indexes of the demodulation reference signal port groups are in the order from large to small; each or every several demodulation reference signal ports or demodulation reference signal port groups are used for demodulating the sequence from small to large of the index of the demodulation reference signal port group indicated by the antenna port word field or the sequence from large to small of the index of the demodulation reference signal port group indicated by the antenna port word field or the sequence from small to large of the index of the demodulation reference signal port indicated by the antenna port word field or the sequence from large to small of the index of the demodulation reference signal port indicated by the antenna port word field; each or every few demodulation reference signal ports, demodulation reference signal port groups correspond to one of N resources.

In the present embodiment, the network device 220 is presented in a form that divides the respective functional modules in an integrated manner. A "module" herein may refer to a particular ASIC, an electronic circuit, a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and/or other device that can provide the described functionality. In a simple embodiment, one skilled in the art will recognize that the network device 220 may take the form of the network device 300 shown in FIG. 3.

For example, the processor 301 in the network device 300 shown in fig. 3 may cause the network device 300 to execute the communication method in the above-described method embodiment by calling the computer-executable instructions stored in the memory 302.

In particular, the functions/implementation of the processing module 2201 and the transceiver module 2202 in fig. 22 may be implemented by the processor 301 in the network device 300 shown in fig. 3 invoking computer executable instructions stored in the memory 302. Or the functions/implementations of the processing module 2201 in fig. 22 may be implemented by the processor 301 in the network device 300 shown in fig. 3 invoking computer executable instructions stored in the memory 302, and the functions/implementations of the transceiver module 2202 in fig. 22 may be implemented by the communication interface 303 in the network device 300 shown in fig. 3.

Since the network device 220 provided in this embodiment can execute the above-mentioned communication method, the technical effects that can be obtained by the network device can be referred to the above-mentioned method embodiment, and will not be described herein.

The embodiment of the application also provides a communication device, which comprises: a processor and a memory for storing a program, the processor calling the program stored in the memory to cause the communication apparatus to execute the communication method of the terminal device in fig. 5.

The embodiment of the application also provides a communication device, which comprises: a processor and a memory for storing a program, the processor calling the program stored in the memory to cause the communication apparatus to execute the communication method of the network device in fig. 5.

Embodiments of the present application also provide a computer-readable storage medium having instructions stored therein, which when executed on a computer or processor, cause the computer or processor to perform the communication method of the terminal device or network device in fig. 5.

Embodiments of the present application also provide a computer program product comprising instructions which, when run on a computer or processor, cause the computer or processor to perform the communication method of the terminal device or network device of fig. 5.

An embodiment of the present application provides a chip system, which includes a processor for a communication apparatus to perform a communication method of a terminal device in fig. 5. For example, receiving first indication information, wherein the first indication information is used for indicating receiving K space-related parameters of N transmission blocks, wherein the N transmission blocks are the same transmission block, K and N are integers greater than 1, and K is less than or equal to N; determining the mapping relation between K space related parameters and N transmission blocks; and receiving N transmission blocks according to the mapping relation.

In one possible design, the chip system further includes a memory for storing program instructions and data necessary for the terminal device. The chip system may include a chip, an integrated circuit, or may include a chip and other discrete devices, which is not particularly limited in this embodiment of the application.

An embodiment of the present application provides a chip system, which includes a processor configured to perform a communication method of a network device in fig. 5. For example, first indication information is sent, wherein the first indication information is used for indicating K space-related parameters of N transmission blocks to be received, N transmission blocks are the same transmission blocks, K and N are integers greater than 1, and K is less than or equal to N; determining the mapping relation between K space related parameters and N transmission blocks; and transmitting N transmission blocks according to the mapping relation.

In one possible design, the system-on-chip also includes memory to hold the program instructions and data necessary for the network device. The chip system may include a chip, an integrated circuit, or may include a chip and other discrete devices, which is not particularly limited in this embodiment of the application.

The communication device, the computer storage medium, the computer program product or the chip system provided by the present application are all configured to perform the above communication method, so that the beneficial effects achieved by the present application can refer to the beneficial effects provided in the above embodiments, and are not repeated herein.

It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.

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

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

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

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using a software program, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (Digital Subscriber Line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device including one or more servers, data centers, etc. that can be integrated with the medium. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid state disk (Solid STATE DISK, SSD)), etc.

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

Claims

1. A method of communication, comprising:

Receiving first indication information, wherein the first indication information is used for indicating to receive K space related parameters of a transmission block borne on N resources, K and N are integers greater than 1, K is less than or equal to N, and the space related parameters are space relation information or transmission configuration indication TCI information;

determining mapping relation between the K space-related parameters and the N resources according to a multiplexing mode of the N resources, wherein the multiplexing mode comprises at least one of space division multiplexing, time division multiplexing and frequency division multiplexing; and receiving the transmission blocks on the N resources according to the mapping relation.

2. The method of claim 1, wherein the N resources are multiplexed, and the N resources comprise K groups of resources; the mapping relation between the K space-related parameters and the N resources includes:

the K space-related parameters arranged according to the first order are mapped to K groups of resources arranged according to the order corresponding to the multiplexing mode in turn.

3. The method of claim 1, wherein the mapping of the K spatial correlation parameters to the N resources comprises:

and the K space-related parameters arranged according to the first sequence are mapped to the N resources in sequence.

4. The method of claim 1, wherein the mapping of the K spatial correlation parameters to the N resources comprises:

the ith space-related parameter in the K space-related parameters arranged according to the first sequence is mapped to the Kxj+i-th resource in the N resources, wherein i and j are integers, i is not less than 1 and not more than K, K is not less than 1 and not more than N, Representing an upward rounding.

5. The method according to claim 3 or 4, wherein the N resources adopt a multiplexing manner, and the N resources are arranged in a sequence corresponding to the multiplexing manner.

6. The method of claim 3, wherein the N resources adopt at least two multiplexing modes, the at least two multiplexing modes include a first multiplexing mode, the N resources include M groups of resources, M is a positive integer, and the resources in each group of resources are arranged in a sequence corresponding to the first multiplexing mode.

7. The method of claim 6, wherein the N resources are arranged in a sequence corresponding to the second multiplexing mode, and the M groups of resources are arranged in the two multiplexing modes.

8. The method of claim 7, wherein the step of determining the position of the probe is performed,

The first multiplexing mode is space division multiplexing, and the second multiplexing mode is time division multiplexing or frequency division multiplexing; or alternatively

The first multiplexing mode is time division multiplexing, and the second multiplexing mode is frequency division multiplexing; or alternatively

The first multiplexing mode is frequency division multiplexing, and the second multiplexing mode is time division multiplexing.

9. The method of claim 6, wherein the N resources are arranged in a sequence corresponding to the second multiplexing mode and then in a sequence corresponding to the third multiplexing mode.

10. The method of claim 9, wherein the step of determining the position of the substrate comprises,

The first multiplexing mode is space division multiplexing, the second multiplexing mode is time division multiplexing, and the third multiplexing mode is frequency division multiplexing, or

The first multiplexing mode is space division multiplexing, the second multiplexing mode is frequency division multiplexing, and the third multiplexing mode is time division multiplexing.

11. The method of any one of claims 2-4, 6-10, wherein the first order is: the identification of the spatial correlation parameters is from small to large, or the identification of the spatial correlation parameters is from large to small, or the sequence of the K spatial correlation parameters indicated by the first indication information.

12. The method according to any one of claims 2-4 and 6-10, wherein the order corresponding to the multiplexing mode of the space division multiplexing is: the sequence of the indexes of the demodulation reference signal ports from small to large, or the sequence of the indexes of the demodulation reference signal ports from large to small, or the sequence of the indexes of the demodulation reference signal port groups indicated by the antenna port word fields from small to large, or the sequence of the indexes of the demodulation reference signal port groups indicated by the antenna port word fields from large to small, or the sequence of the indexes of the demodulation reference signal ports indicated by the antenna port word fields from small to large, or the sequence of the indexes of the demodulation reference signal ports indicated by the antenna port word fields from large to small;

Each or every several demodulation reference signal ports, demodulation reference signal port groups correspond to one of the N resources.

13. The method according to any one of claims 2-4 and 6-10, wherein the time division multiplexing is performed in a multiplexing manner corresponding to the order: the indexes of the time domain resources are in an order from small to large or in an order from large to small, and each time domain resource corresponds to one resource in the N resources.

14. The method according to any one of claims 2-4 and 6-10, wherein the order corresponding to the multiplexing mode of the frequency division multiplexing is: the indexes of the frequency domain resources are in an order from small to large or in an order from large to small, wherein each frequency domain resource corresponds to one resource in the N resources.

15. The method according to any one of claims 6-10, wherein the K spatial correlation parameters arranged according to the first order are mapped sequentially to the resources arranged according to the order corresponding to the first multiplexing manner in each set of resources, and mapping is repeated between the sets of resources.

16. A method of communication, comprising:

Transmitting first indication information, wherein the first indication information is used for indicating to receive K space related parameters of a transmission block borne on N resources, K and N are integers greater than 1, K is less than or equal to N, and the space related parameters are space relation information or transmission configuration indication TCI information;

Determining mapping relation between the K space-related parameters and the N resources according to a multiplexing mode of the N resources, wherein the multiplexing mode comprises at least one of space division multiplexing, time division multiplexing and frequency division multiplexing;

and transmitting the transmission blocks on the N resources according to the mapping relation.

17. The method of claim 16, wherein the N resources are multiplexed, and wherein the N resources comprise K groups of resources; the mapping relation between the K space-related parameters and the N resources includes:

18. The method of claim 16, wherein the mapping of the K spatial correlation parameters to the N resources comprises:

19. The method of claim 16, wherein the mapping of the K spatial correlation parameters to the N resources comprises:

20. The method according to claim 18 or 19, wherein the N resources adopt a multiplexing mode, and the N resources are arranged in a sequence corresponding to the multiplexing mode.

21. The method of claim 18, wherein the N resources adopt at least two multiplexing modes, the at least two multiplexing modes include a first multiplexing mode, the N resources include M groups of resources, M is a positive integer, and the resources in each group of resources are arranged in an order corresponding to the first multiplexing mode.

22. The method of claim 21, wherein the N resources are arranged in two multiplexing manners, and the M groups of resources are arranged in a sequence corresponding to the second multiplexing manner.

23. The method of claim 22, wherein the step of determining the position of the probe is performed,

24. The method of claim 21, wherein the N resources are arranged in a sequence corresponding to the second multiplexing mode and then in a sequence corresponding to the third multiplexing mode.

25. The method of claim 24, wherein the step of determining the position of the probe is performed,

26. The method of any one of claims 17-19, 21-25, wherein the first order is: the identification of the spatial correlation parameters is from small to large, or the identification of the spatial correlation parameters is from large to small, or the sequence of the K spatial correlation parameters indicated by the first indication information.

27. The method according to any one of claims 16-19, 21-25, wherein the order corresponding to the multiplexing mode of the space division multiplexing is: the sequence of the indexes of the demodulation reference signal ports from small to large, or the sequence of the indexes of the demodulation reference signal ports from large to small, or the sequence of the indexes of the demodulation reference signal port groups indicated by the antenna port word fields from small to large, or the sequence of the indexes of the demodulation reference signal port groups indicated by the antenna port word fields from large to small, or the sequence of the indexes of the demodulation reference signal ports indicated by the antenna port word fields from small to large, or the sequence of the indexes of the demodulation reference signal ports indicated by the antenna port word fields from large to small;

28. The method according to any one of claims 16-19, 21-25, wherein the time division multiplexing is performed in a multiplexing manner corresponding to the order: the indexes of the time domain resources are in an order from small to large or in an order from large to small, and each time domain resource corresponds to one resource in the N resources.

29. The method according to any one of claims 16-19, 21-25, wherein the order of multiplexing modes of the frequency division multiplexing corresponds to: the indexes of the frequency domain resources are in an order from small to large or in an order from large to small, wherein each frequency domain resource corresponds to one resource in the N resources.

30. The method according to any one of claims 21-25, wherein the K spatial correlation parameters arranged according to the first order are mapped sequentially to the resources arranged according to the order corresponding to the first multiplexing manner in each set of resources, and mapping is repeated between the sets of resources.

31. A terminal device, comprising: a processing module and a receiving-transmitting module;

The transceiver module is configured to receive first indication information, where the first indication information is configured to indicate receiving K spatial related parameters of a transport block carried on N resources, where K and N are integers greater than 1, and K is less than or equal to N, and the spatial related parameters are spatial relationship information or transport configuration indication TCI information;

The processing module is configured to determine mapping relationships between the K spatial correlation parameters and the N resources according to a multiplexing manner of the N resources, where the multiplexing manner includes at least one of space division multiplexing, time division multiplexing, and frequency division multiplexing;

the transceiver module is further configured to receive the transport blocks on the N resources according to the mapping relationship.

32. The terminal device of claim 31, wherein the N resources adopt a multiplexing manner, and the N resources include K groups of resources; the mapping relation between the K space-related parameters and the N resources includes:

33. The terminal device of claim 31, wherein the mapping relationship between the K spatial correlation parameters and the N resources comprises:

34. The terminal device of claim 31, wherein the mapping relationship between the K spatial correlation parameters and the N resources comprises:

35. The terminal device according to claim 33 or 34, wherein the N resources adopt a multiplexing manner, and the N resources are arranged in a sequence corresponding to the multiplexing manner.

36. The terminal device of claim 33, wherein the N resources adopt at least two multiplexing modes, the at least two multiplexing modes include a first multiplexing mode, the N resources include M groups of resources, M is a positive integer, and resources in each group of resources are arranged in an order corresponding to the first multiplexing mode.

37. The terminal device of claim 36, wherein the N resources are arranged in two multiplexing manners, and the M groups of resources are arranged in a sequence corresponding to the second multiplexing manner.

38. The terminal device of claim 37, wherein the terminal device,

39. The terminal device of claim 36, wherein the N resources are arranged in a sequence corresponding to the second multiplexing mode and then in a sequence corresponding to the third multiplexing mode.

40. The terminal device of claim 39, wherein the wireless communication network comprises a wireless communication network,

41. The terminal device according to any of claims 32-34, 36-40, wherein the first order is: the identification of the spatial correlation parameters is from small to large, or the identification of the spatial correlation parameters is from large to small, or the sequence of the K spatial correlation parameters indicated by the first indication information.

42. The terminal device according to any one of claims 31-34, 36-40, wherein the order corresponding to the multiplexing mode of the space division multiplexing is: the sequence of the indexes of the demodulation reference signal ports from small to large, or the sequence of the indexes of the demodulation reference signal ports from large to small, or the sequence of the indexes of the demodulation reference signal port groups indicated by the antenna port word fields from small to large, or the sequence of the indexes of the demodulation reference signal port groups indicated by the antenna port word fields from large to small, or the sequence of the indexes of the demodulation reference signal ports indicated by the antenna port word fields from small to large, or the sequence of the indexes of the demodulation reference signal ports indicated by the antenna port word fields from large to small;

43. The terminal device according to any of claims 31-34, 36-40, wherein the order corresponding to the multiplexing mode of the time division multiplexing is: the indexes of the time domain resources are in an order from small to large or in an order from large to small, and each time domain resource corresponds to one resource in the N resources.

44. The terminal device according to any of claims 31-34, 36-40, wherein the order corresponding to the multiplexing mode of the frequency division multiplexing is: the indexes of the frequency domain resources are in an order from small to large or in an order from large to small, wherein each frequency domain resource corresponds to one resource in the N resources.

45. The terminal device according to any one of claims 36-40, wherein the K spatial correlation parameters arranged according to the first order are mapped sequentially to the resources arranged according to the order corresponding to the first multiplexing manner in each set of resources, and mapping is repeated between each set of resources.

46. A network device, comprising: a processing module and a receiving-transmitting module;

the transceiver module is configured to send first indication information, where the first indication information is used to indicate receiving K space-related parameters of a transport block carried on N resources, where K and N are integers greater than 1, and K is less than or equal to N, and the space-related parameters are space relationship information or transport configuration indication TCI information;

and the receiving and transmitting module is further configured to send the transport block on the N resources according to the mapping relationship.

47. The network device of claim 46, wherein the N resources are multiplexed, the N resources comprising K sets of resources; the mapping relation between the K space-related parameters and the N resources includes:

48. The network device of claim 46, wherein the mapping of the K spatial correlation parameters to the N resources comprises:

49. The network device of claim 46, wherein the mapping of the K spatial correlation parameters to the N resources comprises:

50. The network device of claim 48 or 49, wherein the N resources adopt a multiplexing manner, and the N resources are arranged in an order corresponding to the multiplexing manner.

51. The network device of claim 48, wherein the N resources are at least two multiplexing modes, the at least two multiplexing modes include a first multiplexing mode, the N resources include M groups of resources, M is a positive integer, and the resources in each group of resources are arranged in an order corresponding to the first multiplexing mode.

52. The network device of claim 51, wherein the N resources are arranged in two multiplexing manners, and the M groups of resources are arranged in a sequence corresponding to the second multiplexing manner.

53. The network device of claim 52, wherein,

54. The network device of claim 51, wherein the N resources are arranged in three multiplexing modes, and each group of resources is arranged in a sequence corresponding to the second multiplexing mode and then arranged in a sequence corresponding to the third multiplexing mode.

55. The network device of claim 54,

56. The network device of any one of claims 47-49, 51-55, wherein the first order is: the identification of the spatial correlation parameters is from small to large, or the identification of the spatial correlation parameters is from large to small, or the sequence of the K spatial correlation parameters indicated by the first indication information.

57. The network device according to any one of claims 47-49 and 51-55, wherein the order corresponding to the multiplexing mode of the space division multiplexing is: the sequence of the indexes of the demodulation reference signal ports from small to large, or the sequence of the indexes of the demodulation reference signal ports from large to small, or the sequence of the indexes of the demodulation reference signal port groups indicated by the antenna port word fields from small to large, or the sequence of the indexes of the demodulation reference signal port groups indicated by the antenna port word fields from large to small, or the sequence of the indexes of the demodulation reference signal ports indicated by the antenna port word fields from small to large, or the sequence of the indexes of the demodulation reference signal ports indicated by the antenna port word fields from large to small;

58. The network device according to any one of claims 47-49 and 51-55, wherein the time division multiplexing is performed in a multiplexing manner corresponding to the order: the indexes of the time domain resources are in an order from small to large or in an order from large to small, and each time domain resource corresponds to one resource in the N resources.

59. The network device according to any one of claims 47-49 and 51-55, wherein the order corresponding to the multiplexing mode of the frequency division multiplexing is: the indexes of the frequency domain resources are in an order from small to large or in an order from large to small, wherein each frequency domain resource corresponds to one resource in the N resources.

60. The network device of any one of claims 51-55, wherein the K spatial correlation parameters arranged according to the first order are mapped sequentially to resources arranged according to the order corresponding to the first multiplexing manner in each set of resources, and mapping is repeated between the sets of resources.