CN116326023A

CN116326023A - Indication method of signal transmission and communication device

Info

Publication number: CN116326023A
Application number: CN202080105453.4A
Authority: CN
Inventors: 高翔; 董昶钊; 刘鹍鹏
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2023-06-23
Also published as: WO2022067784A1

Abstract

The application provides a signal transmission indicating method and a communication device, wherein the method comprises the following steps: the terminal equipment receives first indication information, wherein the first indication information is used for indicating at least one target value, the target value corresponds to at least one precoding granularity, the target value is determined according to a precoding granularity set, and the precoding granularity set comprises precoding granularity smaller than 2 Resource Blocks (RBs); determining a target precoding granularity from the precoding granularity corresponding to the at least one target value; and detecting the signal according to the target precoding granularity. By including the precoding granularity smaller than 2RB in the precoding granularity set, the terminal equipment can support finer precoding granularity, reduce the interference among users and adapt to the channel frequency selection characteristic.

Description

Indication method of signal transmission and communication device

Technical Field

The present application relates to the field of wireless communications, and more particularly, to a signal transmission indicating method and a communication device.

Background

Among new radio access technologies (new radio access technology, NR), precoding technology (precoding) is one of key technologies of multiple input and output (multiple input multiple output, MIMO). Consecutive Resource Blocks (RBs) having the same precoding matrix are referred to as a precoding Resource block group (Precoding Resource Block Group, PRG). And the size of the PRG (PRG size) is determined by the physical resource block (physical resource block, PRB) bundling (physical resource block bundling, PRB bundling) procedure. The PRB bundling is to bind a plurality of consecutive PRBs together for joint processing, the network device may use the same preprocessing mode (including beamforming and precoding) for the plurality of PRBs, and the terminal device may perform channel estimation by combining the plurality of PRBs. When the terminal equipment performs joint channel estimation based on a plurality of PRBs, the accuracy of channel estimation can be improved by utilizing the channel correlation between the continuous frequency domain resources. However, the PRG size supported only in the current protocol is 2 Resource Blocks (RBs), 4 RBs, or full bandwidth.

Therefore, it is needed to provide a technique for supporting finer precoding frequency domain granularity, further adapt to channel frequency selection characteristics, improve the accuracy of downlink weights, and further improve the downlink capacity of the base station.

Disclosure of Invention

The application provides a signal transmission indicating method and a communication device, which can support an indicating method with a precoding granularity smaller than 2 RB.

In a first aspect, the present application provides a method of indicating signal transmission. The method may be performed by the terminal device or may be performed by a chip configured in the terminal device, which is not limited in this application.

Specifically, the method comprises the following steps: the terminal equipment receives first indication information, wherein the first indication information is used for indicating at least one target value, the target value corresponds to at least one precoding granularity, the target value is determined according to a precoding granularity set, and the precoding granularity set comprises precoding granularity smaller than 2 Resource Blocks (RBs); determining a target precoding granularity from the precoding granularity corresponding to the at least one target value; and detecting the signal according to the target precoding granularity.

In the embodiment of the present application, by including a precoding granularity smaller than 2RB in the precoding granularity set, the target value may correspond to the precoding granularity smaller than 2 RB. Therefore, the terminal equipment can have more choices, for example, the target precoding granularity determined by the terminal equipment can be the precoding granularity smaller than 2RB, so that the terminal equipment can support finer precoding granularity, and the flexibility of selecting the precoding granularity by the terminal equipment is improved.

It can be seen that by including the precoding granularity smaller than 2RB in the precoding granularity set, the terminal device can support finer precoding granularity, so as to be beneficial to interference suppression between different paired users in Multi-User Multi-output (MIMO), so that the interference between users is further reduced, the channel frequency selection characteristic is further adapted, and the highest number of paired streams is increased.

With reference to the first aspect, in some possible implementations, when the first indication information indicates at least two target values, the method further includes: and receiving second indication information, wherein the second indication information is used for indicating a first target value in the at least two target values, and the target precoding granularity is determined by the first target value.

In the embodiment of the application, the terminal equipment can reduce the range of determining the target precoding granularity of the terminal equipment and reduce the determining time of the terminal equipment by receiving the second indication information.

With reference to the first aspect, in some possible implementations, the at least one target value includes a first target value and a second target value, and the determining a target precoding granularity from the precoding granularities corresponding to the at least one target value includes: and determining the target precoding granularity from the precoding granularity corresponding to the first target value according to the precoding granularity corresponding to the second target value.

With reference to the first aspect, in some possible implementations, the first target value corresponds to a first target precoding granularity and a second target precoding granularity, and the determining, according to the precoding granularity corresponding to the second target value, the target precoding granularity from the precoding granularity corresponding to the first target value includes: the first target precoding granularity is the target precoding granularity under the condition that the second target precoding granularity is the same as the precoding granularity corresponding to the second target value; or if the second target precoding granularity is different from the precoding granularity corresponding to the second target value, the second target precoding granularity is the target precoding granularity.

In other words, the first target value includes a first target precoding granularity and a second target precoding granularity, and if the second target precoding granularity is the same as the precoding granularity corresponding to the second target value, the first target precoding granularity is the target precoding granularity; or if the second target precoding granularity is different from the precoding granularity corresponding to the second target value, the second target precoding granularity is the target precoding granularity.

In this embodiment of the present application, the second target precoding granularity is the same as the precoding granularity corresponding to the second target value, which may be understood as: the second target precoding granularity is the same as at least one of the precoding granularities corresponding to the second target value. The second target precoding granularity is different from the precoding granularity corresponding to the second target value, which can be understood as: the second target precoding granularity is different from at least one of the precoding granularities corresponding to the second target value.

With reference to the first aspect, in some possible implementations, the determining a target precoding granularity from the precoding granularity corresponding to the at least one target value includes: and determining the target precoding granularity from the precoding granularity corresponding to the at least one target value according to the capability information of the terminal equipment.

With reference to the first aspect, in some possible implementations, the terminal device reports capability information, where the capability information is used to indicate that the terminal device supports capability information less than 2 RB. In one possible implementation manner, before receiving the first indication information, the terminal device reports capability information to the network device; in another possible implementation manner, after receiving the indication of the first indication information, the terminal device reports the capability information to the network device.

With reference to the first aspect, in some possible implementations, the set of precoding granularity includes a first set and a second set;

wherein the first set comprises: 1RB, 2RB, 4RB, and full bandwidth, the second set including: 2RB and full bandwidth; or, the first set includes: 2RB, 4RB, and full bandwidth, the second set including: 1RB, 4RB, and full bandwidth.

It can be seen that the terminal device can support more flexible PRB bundling indication combinations while not introducing additional signaling overhead.

In a second aspect, the present application provides a method of indicating signal transmission. The method may be performed by the network device or may be performed by a chip configured in the network device, which is not limited in this application.

Specifically, the method comprises the following steps: the network equipment sends first indication information, wherein the first indication information is used for indicating at least one target value, the target value corresponds to at least one precoding granularity, the target value is determined according to a precoding granularity set, and the precoding granularity set comprises precoding granularity smaller than 2 Resource Blocks (RBs); determining a target precoding granularity from the precoding granularity corresponding to the at least one target value; and pre-coding the signal according to the target pre-coding granularity.

With reference to the second aspect, in some possible implementations, when the first indication information indicates at least two target values, the method further includes: and sending second indication information, wherein the second indication information is used for indicating a first target value in the at least two target values, and the target precoding granularity is determined by the first target value.

With reference to the second aspect, in some possible implementations, the at least one target value includes a first target value and a second target value; the determining the target precoding granularity from the precoding granularity corresponding to the at least one target value comprises the following steps: and determining the target precoding granularity from the precoding granularity corresponding to the first target value according to the precoding granularity corresponding to the second target value.

With reference to the second aspect, in some possible implementations, the first target value corresponds to a first target precoding granularity and a second target precoding granularity, and the determining, according to the precoding granularity corresponding to the second target value, the target precoding granularity from the precoding granularity corresponding to the first target value includes: the first target precoding granularity is the target precoding granularity under the condition that the second target precoding granularity is the same as the precoding granularity corresponding to the second target value; or if the second target precoding granularity is different from the precoding granularity corresponding to the second target value, the second target precoding granularity is the target precoding granularity.

With reference to the second aspect, in some possible implementations, the determining a target precoding granularity from the precoding granularity corresponding to the at least one target value includes: comprising the following steps: and determining the target precoding granularity from the precoding granularity corresponding to the at least one target value according to the capability information of the terminal equipment.

With reference to the second aspect, in some possible implementations, the network device receives capability information reported by the terminal device, where the capability information is used to indicate that the terminal device supports capability information less than 2 RB. In one possible implementation manner, before receiving the first indication information, the terminal device reports capability information to the network device; in another possible implementation manner, after receiving the indication of the first indication information, the terminal device reports the capability information to the network device.

With reference to the second aspect, in some possible implementations, the set of precoding granularity includes a first set and a second set;

It can be seen that the network device can support more flexible PRB bundling indication combining without introducing additional signaling overhead.

In a third aspect, the present application also provides a communication device. The communication device has a function of realizing part or all of the terminal device described in the first aspect. For example, the functions of the apparatus may be provided in some or all of the embodiments of the terminal device in the present application, or may be provided to implement the functions of any of the embodiments in the present application alone. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the functions described above.

In one possible design, the communication device may include a processing unit and a communication unit in a structure, where the processing unit is configured to support the communication device to perform the corresponding functions in the method. The communication unit is used for supporting communication between the communication device and other equipment. The communication device may further comprise a memory unit for coupling with the processing unit and the communication unit, which holds the necessary program instructions and data of the communication device.

In one embodiment, the communication device includes:

a communication unit, configured to receive first indication information, where the first indication information is used to indicate at least one target value, where the target value corresponds to at least one precoding granularity, and the target value is determined according to a precoding granularity set, and the precoding granularity set includes a precoding granularity smaller than 2 resource blocks RB;

a processing unit, configured to determine a target precoding granularity from the precoding granularity corresponding to the at least one target value;

the processing unit is further configured to detect the signal according to the target precoding granularity.

The relevant content of this embodiment may be found in the above-mentioned first aspect, and will not be described in detail here.

As an example, the processing unit may be a processor, the communication unit may be a transceiver or a communication interface, and the storage unit may be a memory.

In another embodiment, the communication device may include:

a transceiver, configured to receive first indication information, where the first indication information is used to indicate at least one target value, where the target value corresponds to at least one precoding granularity, and the target value is determined according to a precoding granularity set, and the precoding granularity set includes a precoding granularity smaller than 2 resource blocks RB;

A processor, configured to determine a target precoding granularity from the precoding granularity corresponding to the at least one target value;

the processor is further configured to detect the signal according to the target precoding granularity.

In an implementation, a processor may be used to perform, for example but not limited to, baseband related processing, and a transceiver may be used to perform, for example but not limited to, radio frequency transceiving. The above devices may be provided on separate chips, or may be provided at least partially or entirely on the same chip. For example, the processor may be further divided into an analog baseband processor and a digital baseband processor. Wherein the analog baseband processor may be integrated on the same chip as the transceiver and the digital baseband processor may be provided on a separate chip. With the continuous development of integrated circuit technology, more and more devices can be integrated on the same chip. For example, the digital baseband processor may be integrated on the same chip as a variety of application processors (e.g., without limitation, graphics processors, multimedia processors, etc.). Such chips may be referred to as System on chips (System on chips). Whether the individual devices are independently disposed on different chips or integrally disposed on one or more chips is often dependent on the needs of the product design. The implementation form of the device is not limited in the embodiment of the application.

In a fourth aspect, the present application also provides a communication device. The communication apparatus has some or all of the functions of the network device in the example of implementing the method described in the second aspect. For example, the functions of the communication device may be provided in some or all of the embodiments of the present application, or may be provided by implementing any of the embodiments of the present application alone. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the functions described above.

In one possible design, the communication device may include a processing unit and a communication unit in a structure, where the processing unit is configured to support the communication device to perform the corresponding functions in the method. The communication unit is used for supporting communication between the communication device and other equipment. The communication device may further comprise a memory unit for coupling with the processing unit and the transmitting unit, which holds the program instructions and data necessary for the communication device.

In one embodiment, the communication device includes:

a communication unit, configured to send first indication information, where the first indication information is used to indicate at least one target value, where the target value corresponds to at least one precoding granularity, and the target value is determined according to a precoding granularity set, and the precoding granularity set includes a precoding granularity smaller than 2 resource blocks RB;

the processing unit is further configured to precode the signal according to the target precoding granularity.

The relevant content of this embodiment can be found in the above-mentioned second aspect, and will not be described in detail here.

In another embodiment, the communication device includes:

the processor is further configured to precode the signal according to the target precoding granularity.

In a fifth aspect, the present application also provides a processor for performing the above-described methods. In performing these methods, the process of transmitting the above information and receiving the above information in the above methods may be understood as a process of outputting the above information by a processor and a process of receiving the above information inputted by the processor. When outputting the information, the processor outputs the information to the transceiver for transmission by the transceiver. This information, after being output by the processor, may also require additional processing before reaching the transceiver. Similarly, when the processor receives the input of the information, the transceiver receives the information and inputs it to the processor. Further, after the transceiver receives the information, the information may need to be further processed before being input to the processor.

Based on the above principle, for example, the transmission of the first indication information mentioned in the foregoing method may be understood as the output of the first indication information by the processor. For another example, receiving the first indication information may be understood as the processor receiving the input first indication information.

With respect to operations such as transmitting, sending, and receiving, etc., that are referred to by a processor, unless otherwise specified, or if not contradicted by actual or inherent logic in the relevant description, the operations such as outputting and receiving, inputting, etc., by the processor are more generally understood as being operations such as transmitting, sending, and receiving, rather than directly by radio frequency circuitry and antennas.

In implementation, the processor may be a processor dedicated to performing the methods, or may be a processor that executes computer instructions in a memory to perform the methods, e.g., a general purpose processor. The Memory may be a non-transitory (non-transitory) Memory, such as a Read Only Memory (ROM), which may be integrated on the same chip as the processor, or may be separately provided on different chips, and the type of the Memory and the manner of providing the Memory and the processor are not limited in this embodiment of the present application.

In a sixth aspect, the present application further provides a communication system, which includes at least one terminal device and at least one network device of the above aspects. In another possible design, the system may further include other devices that interact with the terminal or the network device in the solution provided in the present application.

In a seventh aspect, the present application provides a computer readable storage medium storing computer software instructions which, when executed by a computer, implement the method of the first aspect.

In an eighth aspect, the present application provides a computer readable storage medium storing computer software instructions that, when executed by a computer, cause a communications apparatus to implement the method of the second aspect.

In a ninth aspect, the present application also provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the first aspect described above.

In a tenth aspect, the present application also provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the second aspect described above.

In an eleventh aspect, the present application provides a chip system comprising a processor and an interface for obtaining a program or instructions, the processor being adapted to invoke the program or instructions to implement or support a terminal device to implement the functionality referred to in the first aspect, e.g. to determine or process at least one of data and information referred to in the above method.

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 can be composed of chips, and can also comprise chips and other discrete devices.

In a twelfth aspect, the present application provides a chip system comprising a processor and an interface for obtaining a program or instructions, the processor for invoking the program or instructions to implement or support a network device to implement the functionality involved in the second aspect, e.g. to determine or process at least one of data and information involved in the above-described method.

In one possible design, the system-on-chip further includes a memory to hold program instructions and data necessary for the network device. The chip system can be composed of chips, and can also comprise chips and other discrete devices.

Drawings

Fig. 1 shows a schematic diagram of a communication system of a communication device and an indication method suitable for signal transmission according to an embodiment of the present application;

FIG. 2 is a schematic flow chart of an indication method of signal transmission provided in an embodiment of the present application;

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

Fig. 4 is a schematic structural diagram of a terminal device provided in an embodiment of the present application;

fig. 5 is a schematic structural diagram of a network device according to an embodiment of the present application;

Detailed Description

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

The technical solution of the embodiment of the application can be applied to various communication systems, for example: long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), universal mobile telecommunications system (universal mobile telecommunication system, UMTS). With the continuous development of communication systems, the technical solution of the present application can be applied to a fifth generation (5th generation,5G) system or a New Radio (NR), and can also be applied to future networks, such as a 6G system and even future systems; alternatively, the embodiment of the present application may also be used to implement a device-to-device (D2D) system, a vehicle-to-anything (V2X) system, or a machine-to-machine (machine to machine, M2M) system between the terminal devices, where the embodiment of the present application does not limit the communication manner between the terminal devices.

It should be understood that the network device in the communication system may be any device having a wireless transceiver function or a chip that may be disposed on the device, where the device includes, but is not limited to: an evolved Node B (eNB), a radio network controller (Radio Network Controller, RNC), a Node B (Node B, NB), a base station controller (Base Station Controller, BSC), a base transceiver station (Base Transceiver Station, BTS), a Home base station (e.g., home evolved NodeB, HNB), a Base Band Unit (BBU), an Access Point (AP) in a wireless fidelity (Wireless Fidelity, WIFI) system, a wireless relay Node, a wireless backhaul Node, a transmission Point (transmission Point, TP), or a Transmission Receiving Point (TRP), etc., may be a device used in a 5G, 6G or even future system, such as an NR, a gNB in a system, or a transmission Point (TRP or TP), one or a set of antenna panels (including a plurality of antenna panels) of a base station in a 5G system, or may be a network Node (BBU) constituting a gNB or a transmission Point, such as a Base Band Unit (BBU), or a distributed Unit (distributed Unit), or a pico base station (base band), or a femto base station (femto Node), a femto Node (r), a femto Node B or a femto Node B (base band Unit), a femto Node B) or a driving scenario (r), a femto Node B or a femto Node B (base station), a femto Node B) or a femto Node B (base station), a femto Node B or a femto Node B, a driving scenario (r), a femto Node B or a femto Node B, a driving scenario (r). The network device may also be a device that carries a base station function in D2D, V2X or M2M, etc., and the specific type of the network device is not limited in this application. It is understood that the names of network device capable devices may vary in systems of different radio access technologies.

In some deployments, the gNB may include a Centralized Unit (CU) and DUs. The gNB may also include a Radio Unit (RU). The CU implements part of the functions of the gNB, the DU implements part of the functions of the gNB, for example, the CU implements the functions of a radio resource control (radio resource control, RRC) layer, a packet data convergence layer protocol (packet data convergence protocol, PDCP) layer, and the DU implements the functions of a radio link control (radio link control, RLC) layer, a medium access control (media access control, MAC) layer, and a physical layer (PHY). Since the information of the RRC layer may be eventually changed into the information of the PHY layer or converted from the information of the PHY layer, under this architecture, higher layer signaling, such as RRC layer signaling or PHCP layer signaling, may also be considered as being transmitted by the DU or by the du+ru. It is understood that the network device may be a CU node, or a DU node, or a device comprising a CU node and a DU node. In addition, the CU may be divided into network devices in the access network RAN, or may be divided into network devices in the core network CN, which is not limited herein.

In the embodiments disclosed herein, the means for implementing the functions of the network device may be the network device; or may be a device, such as a system-on-a-chip, capable of supporting the network device to perform this function, which may be installed in the network device.

In the embodiments disclosed in the present application, the apparatus for implementing the function of the network device is a network device, and the network device is a base station, which is taken as an example, to describe the technical solution provided in the embodiments disclosed in the present application.

It should also be appreciated that the terminal devices in the communication system may also be referred to as User Equipment (UE), access terminals, subscriber units, subscriber stations, mobile stations, remote terminals, mobile devices, user terminals, wireless communication devices, user agents, or user equipment. The terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented Reality (Augmented Reality, AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned driving (self driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation security (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), a wireless terminal in the aforementioned V2X car networking or RSU of a wireless terminal type, or the like. The embodiments of the present application are not limited to application scenarios.

By way of example, and not limitation, in embodiments of the present invention, the terminal device may also be a wearable device. The wearable device can also be called as a wearable intelligent device, and is a generic name for intelligently designing daily wear by applying wearable technology and developing wearable devices, such as glasses, gloves, watches, clothes, shoes and the like. The wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also can realize a powerful function through software support, data interaction and cloud interaction. The generalized wearable intelligent device includes full functionality, large size, and may not rely on the smart phone to implement complete or partial functionality, such as: smart watches or smart glasses, etc., and focus on only certain types of application functions, and need to be used in combination with other devices, such as smart phones, for example, various smart bracelets, smart jewelry, etc. for physical sign monitoring.

Further, in order to facilitate understanding of the embodiments of the present application, the following description is made.

First, in the embodiments of the present application, "indication" may include a direct indication and an indirect indication, and may also include an explicit indication and an implicit indication. The information indicated by a certain information (configuration information described below) is called to-be-indicated information, and in a specific implementation process, there are various ways to indicate to-be-indicated information, for example, but not limited to, the to-be-indicated information may be directly indicated, such as the to-be-indicated information itself or an index of the to-be-indicated information, etc. The information to be indicated can also be indicated indirectly by indicating other information, wherein the other information and the information to be indicated have an association relation. It is also possible to indicate only a part of the information to be indicated, while other parts of the information to be indicated are known or agreed in advance. For example, the indication of the specific information may also be achieved by means of a pre-agreed (e.g., protocol-specified) arrangement sequence of the respective information, thereby reducing the indication overhead to some extent.

Second, in the embodiments shown below, a part of the scenario is described by taking a scenario of an NR network in a wireless communication network as an example, and it should be noted that the solutions in the embodiments disclosed in the present application may also be applied to other wireless communication networks, and the corresponding names may also be replaced by names of corresponding functions in other wireless communication networks.

Third, in the embodiments shown below, the first, second, and various numerical numbers are merely distinguished for convenience of description. In the embodiments shown below, as for one technical feature, the technical features in the technical features are distinguished by "first", "second", "third", and the like, and the technical features described by "first", "second", "third" are not in order of precedence or order of magnitude. And are not intended to limit the scope of the embodiments of the present application. For example, different indication information, different beams, different panels, etc. are distinguished.

Fourth, "at least one" means one or more, and "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a alone, a and B together, and B alone, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b, and c may represent: a, b, or c, or a and b, or a and c, or b and c, or a, b and c, wherein a, b and c can be single or multiple.

Fifth, embodiments disclosed herein will present various aspects, embodiments, or features of the present application around a system comprising a plurality of devices, components, modules, etc. It is to be understood and appreciated that the various systems may include additional devices, components, modules, etc. and/or may not include all of the devices, components, modules etc. discussed in connection with the figures. Furthermore, combinations of these schemes may also be used.

Sixth, in the embodiments disclosed herein, "of", "corresponding" and "corrushing" may be sometimes used in combination, and it should be noted that the meaning to be expressed is consistent when the distinction is not emphasized.

Seventh, in the embodiments shown below, the "predefined" may be defined by a protocol, and may be implemented by pre-storing corresponding codes, tables, or other manners that may be used to indicate relevant information in devices (including, for example, terminal devices and network devices), which is not limited to a specific implementation manner.

To facilitate an understanding of the embodiments of the present application, a brief description of several terms referred to in this application will first be provided.

1. Precoding resource block group (Precoding resource block group, PRG)

The downlink precoding frequency domain granularity defined in the NR protocol, and a set of downlink precoding granularity is called a precoding resource block set. The target precoding granularity that the current NR protocol can indicate includes n2, n4 and full bandwidth (WB) precoding granularity, that is, the frequency domain granularity supported by the current protocol and using the same precoding weight matrix is 2RB, 4RB and WB, respectively. The terminal device may assume that the precoding frequency domain granularity is x RBs in succession, where x may be specified as one of the values n2, n4, WB. Illustratively, if x is designated as WB, the terminal device is scheduled only on consecutive RBs, and the UE assumes the same precoding matrix is used on all allocated frequency domain resources. If x is designated as n2, the terminal device is scheduled on consecutive 2 RBs, and the UE assumes that the same precoding matrix is used on consecutive 2 RBs. If x is designated as n4, the terminal device is scheduled on consecutive 4 RBs, and the UE assumes that the same precoding matrix is used on consecutive 4 RBs.

In the embodiment of the present application, the size (Precoding resource block group size, PRG size) of the pre-coded resource block group is determined by physical resource block bundling (physical resource block bundling, PRB bundling), and the resource bundling may be different on different communication device sides, but the meaning may be the same. For example, the resource binding granularity at the transmitting end (e.g., network device) is generally called PRG, and the same precoding is adopted for the data transmitted by the transmitting end in the same PRG; the resource binding granularity at the receiving end (e.g., terminal equipment) is called PRG, the data transmitted by the transmitting end in the same PRG adopts the same precoding, and the receiving end performs joint channel estimation on the data transmitted in the same PRG.

Note that, for example, the granularity of resource binding on the transmitting side and the receiving side may refer to PRG, or the granularity of resource binding on the transmitting side and the receiving side may refer to PRB bundling, which the embodiments of the present application are not limited to.

It should be understood that the PRG on the network device side may correspond to PRB bundling on the terminal device side. The method for determining the PRG by the network device side and the method for determining the PRB bundling by the terminal device side may be the same for the same resource binding granularity value. But on the same side, namely on the network equipment side or the terminal equipment side, the corresponding PRG determining method or PRB bundling method when the resource binding granularity value is the first target value and the second target value is different.

2. Precoding granularity n1

The precoding granularity n1 is a precoding granularity of less than 2 RB.

In the embodiment of the present application, in order to provide a more refined precoding frequency domain granularity, a precoding granularity set is newly added, where the precoding granularity set includes a precoding granularity smaller than 2RB, and is defined as n1. Where n1 may be, for example, but not limited to, a precoding granularity of 0.5RB, 1RB, or 1.5 RB. In the embodiment of the present application, n1 is exemplified as 1 RB.

Wherein, the n 1/window (n 1/WB) field is an added indication field. For example, taking n1 as 1RB as an example, interpreting an n1/WB field, and for a terminal device supporting 1RB precoding granularity, the network device sends indication information to the terminal device, where the indication information indicates that the downlink precoding granularity of the terminal device is 1RB; for the terminal equipment which does not support the 1RB precoding granularity, the network equipment indicates the downlink precoding granularity of the terminal equipment to be WB through the indication information. n 1-a-w ideband,

It is understood that n1/WB is only an example, and may be denoted as n1-wideband, other new fields may be defined, which is not limited by the embodiment of the present application. For example, but not limited to, n1/n4, taking n1 as 1RB as an example, for a terminal device supporting 1RB precoding granularity, the network device indicates that the terminal device downlink precoding granularity is 1RB by sending indication information to the terminal device; for the terminal equipment which does not support the 1RB precoding granularity, the network equipment indicates the downlink precoding granularity of the terminal equipment to be 4RB through the indication information. n1/n2, taking n1 as 1RB as an example, for a terminal device supporting 1RB precoding granularity, the network device sends indication information to the terminal device, where the indication information indicates that the downlink precoding granularity of the terminal device is 1RB; for the terminal equipment which does not support the 1RB precoding granularity, the network equipment indicates the downlink precoding granularity of the terminal equipment to be 2RB through the indication information.

In order to facilitate understanding of the embodiments of the present application, a communication system suitable for the indication method of signal transmission provided in the embodiments of the present application will be described in detail below by taking the communication system shown in fig. 1 as an example. Fig. 1 shows a schematic diagram of a communication system 100 suitable for use in the indication method of signal transmission of an embodiment of the present application. As shown in fig. 1, the communication system 100 may include at least one terminal device, such as terminal device 101 shown in the figure, and may also be a chip configured in the terminal device; the communication system 100 may further include at least one network device, such as network device #1 102 or network device #2 103 shown in the figure, or may be a chip configured in the network device.

Alternatively, the communication system 100 may include one or more network devices, such as network device #1 102 and network device #2 103 shown in the figures. The network device #1 and the network device #2 103 may be network devices in the same cell, or may be network devices in different cells, which is not limited in this application. The figure shows, by way of example only, an example in which network device #1 102 and network device #2 103 are located in the same cell.

In the following, the signal transmission method provided in the embodiment of the present application is described in detail by taking an interaction process between a terminal device and a network device as an example without losing generality.

Currently, among new radio access technologies (new radio access technology, NR), precoding technology (precoding) is one of key technologies of multiple input and output (multiple input multiple output, MIMO). Consecutive Resource Blocks (RBs) having the same precoding matrix are referred to as a precoding Resource block group (Precoding Resource Block Group, PRG). The size of the PRG (PRG size) is determined by the physical resource block bundling (Physical Resource block bundling, PRB bundling) procedure, and the smaller the PRG, the higher the matching degree between the precoding matrix and the corresponding channel matrix, and the stronger the adaptive channel frequency selection capability.

In the NR related protocol, a physical resource block bundling (Physical Resource block bundling, PRB bundling) procedure may be configured in a static indication manner and a dynamic indication manner. When the higher layer parameter is configured as a static indication, the higher layer parameter may be prb-BundlingType, then the PRG size is a single value indicated by the higher layer parameter bundleSize. When the higher layer parameter prb-bundledtype is configured as a dynamic indication, the PRG size is indicated jointly by a precoding granularity set bundleSizeSet1 and a precoding granularity set bundleSizeSet2, wherein the value set of the PRG size in bundleSizeSet1 can be { n4, windband, n 2-windband, n 4-windband }, and the value set of the PRG size in bundleSizeSet2 can be { n4, windband }, and 2 choices are total. PRG size is determined in the value of bundleSizeSet1 or bundleSizeSet2. The protocol of the higher layer parameter prb-bundletype is specifically defined as follows:

the PRG size is determined by the joint indication of the bundleSizeSet1 and the bundleSizeSet2, and there are eight cases in which the PRG size combination can be dynamically indicated. As shown in table 1, set1 and Set2 correspond to bundleSizeSet1 and bundleSizeSet2, respectively, in the protocol. For example, when Set1 indicates 4RB, set2 may indicate 4RB or WB; when Set1 indicates WB, set2 may indicate 4RB or WB. It can be seen from this that among the first 4 states of table 1, the actual valid PRG size indication state includes only 4RB or WB.

TABLE 1

Numbering device	Set 1	Set 2
1	4	4
2	4	WB
3	WB	4
4	WB	WB
5	n2-WB	4
6	n2-WB	WB
7	n4-WB	4
8	n4-WB	WB

It can be seen that in the current NR protocol, there are more redundant indicator bits, and the supported PRG size is limited, only 2RB, 4RB or WB, and finer precoding granularity is not supported. Therefore, there is a need to propose a solution supporting finer precoding granularity.

In view of this, the embodiments of the present application provide an indication method for signal transmission, which can support finer precoding granularity, so as to facilitate interference suppression between different paired users in Multi-User multiple-input multiple-output (MIMO), so that interference between users is further reduced; meanwhile, finer frequency domain granularity can be better adapted to the frequency selection characteristic of the channel, and the highest number of paired streams is increased. In the embodiment of the application, by using the redundant indication bit existing in the existing protocol to indicate the richer PRG size value combination, a more flexible dynamic PRB bundling selection process is supported.

The following describes an indication method of signal transmission provided in the embodiment of the present application with reference to fig. 2. It should be noted that the communication method provided in the present application may be applied to a wireless communication system, for example, the communication system 100 shown in fig. 1. Communication devices in a communication system may have a wireless communication connection relationship therebetween. For example, the terminal device 101 shown in fig. 1 may have a wireless communication connection relationship with the network device #1 102 and the network device #2 103, respectively, which is not limited in this application.

Referring to fig. 2, fig. 2 is a schematic flow chart of an indication method 200 of signal transmission provided by an embodiment of the present application from the perspective of device interaction. As shown in fig. 2, the method 200 shown in fig. 2 may include steps 210 through 230. The various steps in method 200 are described in detail below in conjunction with the figures.

In step 210, the terminal device receives the first indication information. Correspondingly, the network device sends the first indication information.

The above step 210 can also be understood as: the network device sends the first indication information to the terminal device, and the terminal device receives the first indication information from the network device.

The first indication information is used for indicating at least one target value, the target value corresponds to at least one precoding granularity, the target value is determined according to a precoding granularity set, and the precoding granularity set comprises precoding granularity smaller than 2 Resource Blocks (RBs).

Illustratively, the first indication information may be a bundling size, where a higher layer parameter (prb-bundling type) is configured as a static indication (staticingdroping); the first indication information may also be bundleSizeSet1 and bundleSizeSet2, where the higher-level parameter (prb-bundlegtype) is configured as dynamic indication (dynamic bundling). It is to be appreciated that the above first indication information is merely an example, and the first indication information may also be carried in one or more of, for example and without limitation, a radio resource control (radio resource control, RRC) message, a medium access control element (Media access control element, MAC-CE), and downlink control signaling (Downlink control information, DCI). The first indication information may also be carried in the newly added signaling. It should be understood that RRC messages, MAC-CEs and DCIs are only examples for ease of understanding and should not constitute any limitation to this application. The present application does not exclude the possibility of using other signaling to carry indication information, nor the possibility of defining other names for the signaling. In other words, the first indication information may be carried in one or more of physical layer signaling and higher layer signaling. The present application is not limited in this regard.

Optionally, the precoding granularity set includes a first set and a second set.

In one possible implementation, the first set includes: 1RB, 2RB, 4RB, and full bandwidth, the second set including: 2RB and full bandwidth. Illustratively, the first set is denoted as A1 and the second set is denoted as A2, i.e., A1 is { n4, n 1/windband, n 2-windband, n 4-windband }, A2 is { n4, windband }.

In another possible implementation, the first set includes: 2RB, 4RB, and full bandwidth, the second set including: 1RB, 4RB, and full bandwidth. Illustratively, the first set is denoted as A1 and the second set is denoted as A2, i.e., A1 is { n4, n2, n 2-windband, n 4-windband }, A2 is { n1-n4, n 1-windband }.

In another possible implementation, the first set includes: 1RB, 2RB, 4RB, and full bandwidth, the second set including: 1RB, 4RB, and full bandwidth. Illustratively, the first set is denoted as A1 and the second set is denoted as A2, i.e., A1 is { n4, n2-n1, n 2-windband, n 4-windband }, A2 is { n1-n4, n 1-windband }.

It can be understood that A1 is a set of target values corresponding to the case where the first indication information is bundleSizeSet1, and bundleSizeSet1 indicates one target value in A1; a2 is a target value set corresponding to the case that the first indication information is bundleSizeSet2, and bundleSizeSet2 indicates one target value in A2. And the precoding granularity contained in the first set and the second set is given as an example for convenience of description, which is not limited by the embodiment of the present application. The sets defined in the embodiments of the present application are within the scope of the embodiments of the present application as long as either one of the first set and the second set includes a precoding granularity of less than 2RB, or both the first set and the second set include a precoding granularity of less than 2 RB.

Alternatively, in the embodiment of the present application, the target precoding granularity PRG size may be determined by a joint indication of bundleSizeSet1 and bundleSizeSet 2.

Hereinafter, the embodiment of the present application will be exemplarily described by taking A1 as { n4, n1/wideband, n2-wideband, n4-wideband } and A2 as { n4, wideband }. Wherein, A1 is a corresponding target value set when the first indication information is bundleSizeSet1, and bundleSizeSet1 indicates one target value in A1; a2 is a corresponding target value set when the first indication information is bundleSizeSet2, and bundleSizeSet2 indicates one target value in A2; the definition of n 1/windband is explained in detail in the above explanation of terms, and will not be repeated here. Here, n 2-and n4-wideband are exemplified, where n 2-and n 4-are precoding granularity values of n2 or wideband n 4-are precoding granularity values of n4 or wideband. The above configuration parameters of the prb-Bundling Type corresponding to Set1 and Set2 may be defined as follows:

optionally, when the first indication information indicates at least two target values, the method further includes: and receiving second indication information, wherein the second indication information is used for indicating a first target value in the at least two target values. And determining the target precoding granularity from the precoding granularity corresponding to the first target value. The above explanation of the first indication information is also applicable to the second indication information, and the embodiments of the present application are not repeated here. It is understood that the terminal device may also receive the second indication information before step 220. For example, the terminal device may receive the second indication information after receiving the first indication information.

Alternatively, the second indication information may indicate an index of the set of precoding granularity associated with the first target value. Illustratively, the precoding granularity set is denoted as a first set and a second set, the second indication information may be one field in the DCI, the first target value being associated with an index of the second set when the field in the DCI indicates 0, and the first target value being associated with an index of the first set when the field in the DCI indicates 1. And determining the target precoding granularity through the index of the precoding granularity set. In this embodiment, the index of the precoding granularity set is indicated by the field in the DCI, so that no additional indication information is required to be added, and signaling overhead is greatly saved.

Step 220, the terminal device determines a target precoding granularity from the precoding granularity corresponding to the at least one target value. Correspondingly, the network device also determines a target precoding granularity from the precoding granularity corresponding to the at least one target value.

Optionally, the target precoding granularity is determined according to the capability information of the terminal equipment. The capability information is information whether the terminal device supports less than 2 RB.

Optionally, the terminal device reports capability information to the network device, where the capability information indicates that the terminal device supports capability information less than 2 RB. In one possible implementation manner, before receiving the first indication information, the terminal device reports capability information to the network device; in another possible implementation manner, after receiving the indication of the first indication information, the terminal device reports the capability information to the network device. The embodiments of the present application are not limited in this regard.

Optionally, the terminal device or the network device may determine the target precoding granularity through the first indication information, or may determine the target precoding granularity through the combined indication of the first indication information and the second indication information. For example, when the first indication information indicates a target value, the target precoding granularity may be determined by the first indication information; when the first indication information indicates at least two target values, the target precoding granularity may be determined by a combined indication of the first indication information and the second indication information.

A possible implementation manner, determining a target precoding granularity from the precoding granularity corresponding to the at least one target value includes: the at least one target value includes a first target value, and a target precoding granularity is determined from the precoding granularity corresponding to the first target value. At this time, the target precoding granularity is determined by the indication of the first indication information.

Illustratively, the first set A1 is { n4, n 1/windband, n 2-windband, n 4-windband }, and assuming that the first target value corresponds to n4, the target precoding granularity determined according to the first target value is 4RB; assuming that the first target value corresponds to n1/wideband, if the terminal equipment supports the precoding granularity of 1RB, the target precoding granularity determined according to the first target value is 1RB, and if the terminal equipment does not support the precoding granularity of 1RB, the target precoding granularity determined according to the first target value is wideband.

In another possible embodiment, determining the target precoding granularity from the precoding granularity corresponding to the at least one target value includes: the at least one target value includes a first target value and a second target value. At this time, the target precoding granularity is determined by the joint indication of the first indication information and the second indication information.

Illustratively, the first set A1 is { n4, n 1/windband, n 2-windband, n 4-windband }, the second set A2 is { n4, windband }, A1 is a set of corresponding target values when the first indication information is bundleSizeset1, and bundleSizeset1 indicates one of the target values in A1; a2 is a target value set corresponding to the case that the first indication information is bundleSizeSet2, and bundleSizeSet2 indicates one target value in A2. For example, the prb-Bundling Type configuration parameters corresponding to bundleSizeSet1 and bundleSizeSet2 can be defined as follows:

optionally, according to the indication of the first indication information, a first target value is determined from the first set, and a second target value is determined from the second set. And determining the target precoding granularity from the first target value and the second target value according to the indication of the second indication information. At this time, three different schemes are included, denoted as scheme one through scheme three.

The following describes in detail the first to third embodiments taking the second indication information as DCI and the field PRB bundling size indicator in the DCI as an example.

Scheme one

In the case where the indicator field is configured to be 0 in the DCI, the target precoding granularity is determined from the precoding granularity corresponding to the second target value. I.e. n4 is the target precoding granularity. That is, the target precoding granularity is 4RB.

Scheme II

When the index field is configured to be 1 in the DCI and the precoding granularity corresponding to the first target value is n4 or n1/wideband, the target precoding granularity is determined from the precoding granularity corresponding to the first target value.

In a possible implementation manner, if the precoding granularity corresponding to the first target value is n4, the target precoding granularity is 4RB.

In another possible implementation manner, the precoding granularity corresponding to the first target value is n1/wideband, and the target precoding granularity is determined according to capability information supported by the terminal device. If the terminal equipment supports the precoding granularity of 1RB, the target precoding granularity is 1RB; if the terminal equipment does not support the precoding granularity of 1RB, the target precoding granularity is windeband.

Scheme III

When the index field is configured to be 1 in the DCI and the precoding granularity corresponding to the first target value is n2-wideband or n4-wideband, the target precoding granularity is determined from the precoding granularity corresponding to the first target value. When the scheduled physical resource blocks PRBs are consecutive and the number is greater than half of the number of RBs contained in a Bandwidth Part (BWP), the target precoding granularity is windband; when the scheduled PRBs are contiguous and the number is less than or equal to half of the number of RBs contained in BWP, the target precoding granularity is n2 or n4.

For example, the first target value corresponds to n 2-bandwidth, where the number of RBs included in BWP is 48RB and the continuous bandwidth is 30RB, and if the number of RBs included in BWP is 24RB, the continuous bandwidth is greater than the number of RBs included in BWP, and the determined target precoding granularity is bandwidth. Assuming that the number of RBs included in BWP is 48 RBs and the continuous bandwidth is 20 RBs, half of the number of RBs included in BWP is 24 RBs, the continuous bandwidth is less than half of the number of RBs included in BWP, and the determined target precoding granularity is 2 RBs. A1 is a corresponding target value set when the first indication information is bundleSizeSet1, and bundleSizeSet1 indicates one target value in A1; a2 is a corresponding target value set when the first indication information is bundleSizeSet2, and bundleSizeSet2 indicates one target value in A2;

it can be seen that by the joint indication of bundleSizeSet1 (Set 1) and bundleSizeSet2 (Set 2) described above, different PRB-bundlegtype dynamic indication combinations can be achieved, as shown in table 2.

TABLE 2

Numbering device	Set 1	Set 2
1	n1/WB	4
2	n1/WB	WB
3	WB	4
4	WB	WB
5	n2-WB	4
6	n2-WB	WB
7	n4-WB	4
8	n4-WB	WB

In Table 2, n1/WB is a newly added PRB-BundlingType dynamic indication combination supporting n 1. According to table 2, when the terminal device supports the precoding granularity of n1, indicating n1, finer precoding granularity can be achieved; WB is still indicated when the terminal device does not support precoding granularity of n 1.

Optionally, the at least one target value includes a first target value and a second target value; determining a target precoding granularity from the precoding granularity corresponding to the at least one target value comprises: and determining the target precoding granularity from the precoding granularity corresponding to the first target value according to the precoding granularity corresponding to the second target value.

Optionally, the determining the target precoding granularity from the precoding granularity corresponding to the first target value according to the precoding granularity corresponding to the second target value includes:

in a possible implementation manner, in a case that the second target precoding granularity is the same as the precoding granularity corresponding to the second target value, the first target precoding granularity is the target precoding granularity.

In another possible implementation manner, in a case where the second target precoding granularity is different from the precoding granularity corresponding to the second target value, the second target precoding granularity is the target precoding granularity.

Illustratively, the first set A1 is { n1-n4, n 1-windband }, and the second set A2 is { n4, n2, n 2-windband, n 4-windband }. A1 is a corresponding target value set when the first indication information is bundleSizeSet1, and bundleSizeSet1 indicates one target value in A1; a2 is a target value set corresponding to the case that the first indication information is bundleSizeSet2, and bundleSizeSet2 indicates one target value in A2. For example, according to the configuration parameters of the bundleSizeSet1 and bundleSizeSet2 corresponding to the prb-Bundling Type can be defined as follows:

A1 is divided into different cases, denoted case1 and case2, respectively, as shown in table 3. Wherein case1 corresponds to a first target precoding granularity and case2 corresponds to a second target precoding granularity.

TABLE 3 Table 3

Different cases	Set1 takes a value of 1	Set1 takes on a value of 2
case1	n1	n1
case2	n4	wideband

At this time, the target precoding granularity determined by the different cases of the first set and the second set includes the following three different cases, which are respectively denoted as scheme four to scheme six. The following describes the fourth to sixth embodiments in detail, taking the second indication information as DCI as an example.

Scheme IV

In the case where the indicator field is configured to be 0 in the DCI, the target precoding granularity is determined from the precoding granularity corresponding to the first target value.

If the target precoding granularity corresponding to the second target value is one and is the same as the second target precoding granularity, the target precoding granularity is the first target precoding granularity. And if the precoding granularity corresponding to the second target value is different from the second target precoding granularity, the target precoding granularity is the second target precoding granularity.

For example, the precoding granularity corresponding to the second target value is n4, the second target precoding granularity is also n4, and the precoding granularity corresponding to the second target value is the same as the second target precoding granularity, and then the first target precoding granularity is the target precoding granularity, i.e., n1.

If the precoding granularity corresponding to the second target value is n 2-windeband, the second target precoding granularity is n4, and the precoding granularity corresponding to the second target value is different from the second target precoding granularity, the second target precoding granularity is the target precoding granularity, namely n4.

If the precoding granularity corresponding to the second target value is n 4-Bandwidth, the second target precoding granularity is n4, and when the number of the scheduled physical resource blocks PRB is continuous and is greater than half (half) of the number of RBs contained in a Bandwidth region (BWP), the second target value is Bandwidth, and the Bandwidth is different from n4, the target precoding granularity is n4; when the number of scheduled PRBs is continuous and less than or equal to half (half) of the number of RBs contained in a Bandwidth region (BWP), the second target value is n4, and the target precoding granularity is n1 when the second target precoding granularity is the same as the second target precoding granularity.

In the embodiment of the present application, the above embodiment is merely an example, and the case of dividing the second set into different cases is also applicable to the case of dividing the first set into different cases. The first set may be divided into different cases, and the dividing manner of the above embodiment may be referred to, or different embodiments may be used, which is not limited in this embodiment.

Scheme five

In the case that the index field is configured to be 1 in the DCI, and the precoding granularity corresponding to the second target value is n4 or n2 or n 1/window, the target precoding granularity is determined from the precoding granularity corresponding to the second target value.

In a possible implementation manner, if the precoding granularity corresponding to the second target value is n4, the target precoding granularity is 4RB. In another possible implementation, the first target value corresponds to n2, and the target precoding granularity is 2RB.

In another possible implementation manner, if the terminal device supports a precoding granularity of 1RB, the target precoding granularity is 1RB; if the terminal equipment does not support the precoding granularity of 1RB, the target precoding granularity is windeband.

Scheme six

And when the index field in the DCI is configured to be 1 and the precoding granularity corresponding to the second target value is n2-wideband or n4-wideband, determining the target precoding granularity from the precoding granularity corresponding to the second target value. When the number of the scheduled physical resource blocks PRBs is continuous and is greater than half (half) of the number of RBs contained in a Bandwidth region (BWP), the target precoding granularity is windeband; when the scheduled PRBs are consecutive and the number is less than or equal to half (half) the number of RBs contained in BWP, the target precoding granularity is n2 or n4.

For example, the second target value corresponds to n 2-bandwidth, where the number of RBs included in BWP is 48RB and the continuous bandwidth is 30RB, and where half (half) of the number of RBs included in BWP is 24RB, the continuous bandwidth is greater than half of the number of RBs included in BWP, and the determined target precoding granularity is bandwidth. Assuming that the number of RBs included in BWP is 48 RBs and the continuous bandwidth is 20 RBs, half (half) of the number of RBs included in BWP is 24 RBs and the continuous bandwidth is less than half (half) of the number of RBs included in BWP, the determined target precoding granularity is 2 RBs.

It can be seen that, as shown in table 4, in the above embodiment, the first set A1 is { n1-n4, n 1-window }, and the second set A2 is { n4, n2, n 2-window, n 4-window }, different PRB-bundling type dynamic indication combinations can be implemented.

In table 4, for example, when the precoding granularity corresponding to the first target value determined by the first indicator information bundleSizeSet1 in the first set A1 is n1-n4 and the precoding granularity corresponding to the second target value determined by the first indicator information bundleSizeSet2 in the second set A2 is n2, it may be indicated that n1-n4+n2, n2 is different from n4, and then the precoding granularity corresponding to the first target value is n4.

TABLE 4 Table 4

Step 230, pre-coding the signal according to the target pre-coding granularity.

And the terminal equipment detects the signal according to the determined target precoding granularity. Correspondingly, the network device precodes the signal according to the determined target precoding granularity.

In the embodiments provided in the present application, the methods provided in the embodiments of the present application are described from the aspects of the network device, the terminal, and the interaction between the network device and the terminal, respectively. In order to implement the functions in the methods provided in the embodiments of the present application, the network device and the terminal may include hardware structures, software modules, and implement the functions in the form of hardware structures, software modules, or both hardware structures and software modules. Some of the functions described above may be implemented in a hardware structure, a software module, or a combination of a hardware structure and a software module.

Fig. 3 is a schematic block diagram of a communication device provided in an embodiment of the present application. As shown in fig. 3, the communication apparatus 1000 may include a communication unit 1100 and a processing unit 1200.

In one possible design, the communication device 1000 may correspond to the terminal device in the above method embodiment, for example, may be a terminal device, or a chip configured in the terminal device.

In particular, the communication apparatus 1000 may correspond to the terminal device in the method in fig. 2 according to an embodiment of the present application, and the communication apparatus 1000 may include means for performing the method performed by the terminal device in the method in fig. 2. And, each unit in the communication device 1000 and the other operations and/or functions described above are respectively for implementing the corresponding flow of the method in fig. 2.

For example, but not limited to, when the communication device 1000 is used to perform the method of fig. 2, the communication unit 1100 may be used to perform step 210 of the method, and the processing unit 1200 may be used to perform step 220 of the method.

It should be understood that the specific process of each unit to perform the corresponding steps is described in detail in the above method embodiment, and reference may be made to the related content described in fig. 2, which is not repeated herein for brevity.

It should also be appreciated that when the communication apparatus 1000 is a terminal device, the communication unit 1100 in the communication apparatus 1000 may correspond to the transceiver 2020 in the terminal device 2000 illustrated in fig. 4, and the processing unit 1200 in the communication apparatus 1000 may correspond to the processor 2010 in the terminal device 2000 illustrated in fig. 4.

It should also be understood that when the communication device 1000 is a chip configured in a terminal apparatus, the communication unit 1100 in the communication device 1000 may be an input/output interface.

In another possible design, the communication apparatus 1000 may correspond to the network device in the above method embodiment, for example, may be a network device, or a chip configured in a network device.

In particular, the communication apparatus 1000 may correspond to the network device in the method in fig. 2 according to an embodiment of the present application, and the communication apparatus 1000 may include means for performing the method performed by the network device in the method in fig. 2. And, each unit in the communication device 1000 and the other operations and/or functions described above are respectively for implementing the corresponding flow in the method in fig. 2.

It should also be appreciated that when the communication apparatus 1000 is a network device, the communication unit in the communication apparatus 1000 may correspond to the transceiver 3200 in the network device 3000 shown in fig. 5, and the processing unit 1200 in the communication apparatus 1000 may correspond to the processor 3100 in the network device 3000 shown in fig. 5.

It should also be understood that when the communication apparatus 1000 is a chip configured in a network device, the communication unit 1100 in the communication apparatus 1000 may be an input/output interface.

Fig. 4 is a schematic structural diagram of a terminal device 2000 provided in an embodiment of the present application. The terminal device 2000 may be applied to a system as shown in fig. 1, and perform the functions of the terminal device in the above-described method embodiment.

As shown, the terminal device 2000 includes a processor 2010 and a transceiver 2020. Optionally, the terminal device 2000 further comprises a memory 2030. Wherein the processor 2010, the transceiver 2020 and the memory 2030 may communicate with each other via an internal connection path, transferring control and/or data signals, the memory 2030 is used for storing a computer program, and the processor 2010 is used for calling and running the computer program from the memory 2030 to control the transceiver 2020 to transceive signals. Optionally, the terminal device 2000 may further include an antenna 2040 for transmitting uplink data and uplink control signaling output by the transceiver 2020 through a wireless signal.

The processor 2010 and the memory 2030 may be combined into one processing device, and the processor 2010 is configured to execute program codes stored in the memory 2030 to implement the functions. In particular implementations, the memory 2030 may also be integrated within the processor 2010 or separate from the processor 2010. The processor 2010 may correspond to the processing unit of fig. 3.

The transceiver 2020 may correspond to the communication unit in fig. 3 and may also be referred to as a transceiver unit. The transceiver 2020 may include a receiver (or receiver, receiving circuitry) and a transmitter (or transmitter, transmitting circuitry). Wherein the receiver is for receiving signals and the transmitter is for transmitting signals.

It should be understood that the terminal device 2000 shown in fig. 4 is capable of implementing the various processes involving the terminal device in the method embodiment of fig. 2. The operations and/or functions of the respective modules in the terminal device 2000 are respectively for implementing the corresponding flows in the above-described method embodiment. Reference is specifically made to the description of the above method embodiments, and detailed descriptions are omitted here as appropriate to avoid redundancy.

The above-described processor 2010 may be used to perform the actions described in the previous method embodiments as being performed internally by the terminal device, while the transceiver 2020 may be used to perform the actions described in the previous method embodiments as being transmitted to or received from the network device by the terminal device. Please refer to the description of the foregoing method embodiments, and details are not repeated herein.

Optionally, the terminal device 2000 may also include a power supply 2050 for providing power to various devices or circuits in the terminal device.

In addition, in order to make the functions of the terminal device more complete, the terminal device 2000 may further include one or more of an input unit 2060, a display unit 2070, an audio circuit 2080, a camera 2090, a sensor 2100, and the like, and the audio circuit 2080 may further include a speaker 2082, a microphone 2084, and the like.

Fig. 5 is a schematic structural diagram of a network device provided in the embodiment of the present application, for example, may be a schematic structural diagram of a base station. The base station 3000 may be applied to the system shown in fig. 1, and perform the functions of the network device in the above method embodiment.

As shown, the base station 3000 may include one or more radio frequency units, such as a remote radio frequency unit (remote radio unit, RRU) 3100 and one or more baseband units (BBU) (also referred to as digital units, DUs) 3200. The RRU 3100 may be referred to as a transceiver unit, corresponding to the communication unit 1200 in fig. 3. Alternatively, the transceiver unit 3100 may also be referred to as a transceiver, a transceiver circuit, or a transceiver, etc., which may include at least one antenna 3101 and a radio frequency unit 3102. Alternatively, the transceiving unit 3100 may include a receiving unit, which may correspond to a receiver (or receiver, receiving circuit), and a transmitting unit, which may correspond to a transmitter (or transmitter, transmitting circuit). The RRU 3100 is mainly configured to receive and transmit a radio frequency signal and convert the radio frequency signal to a baseband signal, for example, to send indication information to a terminal device. The BBU 3200 portion is mainly used for performing baseband processing, controlling a base station, and the like. The RRU 3100 and BBU 3200 may be physically disposed together, or may be physically disposed separately, i.e. a distributed base station.

The BBU 3200 is a control center of the base station, and may also be referred to as a processing unit, and may correspond to the processing unit 1100 in fig. 3, and is mainly used for performing baseband processing functions, such as channel coding, multiplexing, modulation, spreading, and so on. For example, the BBU (processing unit) may be configured to control the base station to perform the operation procedure with respect to the network device in the above-described method embodiment, for example, generate the above-described indication information, etc.

In one example, the BBU 3200 may be configured by one or more single boards, where the multiple single boards may support a single access radio access network (such as an LTE network) together, or may support radio access networks of different access systems (such as an LTE network, a 5G network, or other networks) respectively. The BBU 3200 also includes a memory 3201 and a processor 3202. The memory 3201 is used to store necessary instructions and data. The processor 3202 is configured to control the base station to perform necessary actions, for example, to control the base station to perform the operation procedure related to the network device in the above method embodiment. The memory 3201 and processor 3202 may serve one or more boards. That is, the memory and the processor may be separately provided on each board. It is also possible that multiple boards share the same memory and processor. In addition, each single board can be provided with necessary circuits.

It should be understood that the base station 3000 shown in fig. 5 is capable of implementing various processes involving network devices in the method embodiment of fig. 2. The operations and/or functions of the respective modules in the base station 3000 are respectively for implementing the corresponding flows in the above-described method embodiments. Reference is specifically made to the description of the above method embodiments, and detailed descriptions are omitted here as appropriate to avoid redundancy.

The BBU 3200 described above may be used to perform actions described in the foregoing method embodiments as being implemented internally by a network device, while the RRU 3100 may be used to perform actions described in the foregoing method embodiments as being transmitted to or received from a terminal device by the network device. Please refer to the description of the foregoing method embodiments, and details are not repeated herein.

The embodiment of the application also provides a processing device, which comprises a processor and an interface; the processor is configured to perform the method of communication in the method embodiment described above.

It should be understood that the processing means may be a chip. For example, the processing device may be a field programmable gate array (field programmable gate array, FPGA), an application specific integrated chip (application specific integrated circuit, ASIC), a system on chip (SoC), a central processing unit (central processor unit, CPU), a network processor (network processor, NP), a digital signal processing circuit (digital signal processor, DSP), a microcontroller (micro controller unit, MCU), a programmable controller (programmable logic device, PLD) or other integrated chip.

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or by instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in the processor for execution. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory or erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method. To avoid repetition, a detailed description is not provided herein.

It should be noted that the processor in the embodiments of the present application may be an integrated circuit chip with signal processing capability. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, or discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in hardware, in a decoded processor, or in a combination of hardware and software modules in a decoded processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

It will be appreciated that the memory in embodiments of the present application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and direct memory bus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

According to the method provided by the embodiment of the application, the application further provides a computer program product, which comprises: computer program code for causing a computer to perform the method of the embodiment of fig. 2 when the computer program code is run on the computer.

According to the method provided in the embodiment of the present application, there is further provided a computer readable medium storing a program code, which when run on a computer, causes the computer to perform the method in the embodiment of fig. 2.

According to the method provided by the embodiment of the application, the application further provides a system, which comprises the one or more terminal devices and the one or more network devices.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer 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 such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.

The network device in the above-mentioned respective apparatus embodiments corresponds entirely to the network device or the terminal device in the terminal device and method embodiments, the respective steps are performed by respective modules or units, for example, the steps of receiving or transmitting in the method embodiments are performed by the communication unit (transceiver), and other steps than transmitting and receiving may be performed by the processing unit (processor). Reference may be made to corresponding method embodiments for the function of a specific unit. Wherein the processor may be one or more.

As used in this specification, the terms "component," "module," "system," and the like are intended to refer to a computer-related entity, either hardware, firmware, a combination of hardware and software, or software in execution. For example, a component may be, but is not limited to being, a process running on a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a computing device and the computing device can be a component. One or more components may reside within a process and/or thread of execution and a component may be localized on one computer and/or distributed between 2 or more computers. Furthermore, these components can execute from various computer readable media having various data structures stored thereon. The components may communicate by way of local and/or remote processes in accordance with a signal having one or more data packets (e.g., data from two components interacting with one another in a local system, distributed system, and/or across a network such as the internet with other systems by way of the signal).

Those of ordinary skill in the art will appreciate that the various illustrative logical blocks (illustrative logical block) and steps (steps) described in connection with the embodiments disclosed herein can 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 in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., 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 an indirect coupling or communication connection via some interfaces, devices or units, which may be in 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 each embodiment 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-described embodiments, the functions of the respective functional units may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions (programs). When the computer program instructions (program) are loaded and executed on a computer, the processes or functions described in accordance with the embodiments of the present application are fully or partially produced. 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 or transmitted from one computer-readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, 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 such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a random access memory (random access memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

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

Claims

A method of indicating signal transmission, comprising:

the terminal equipment receives first indication information, wherein the first indication information is used for indicating at least one target value, the target value corresponds to at least one precoding granularity, the target value is determined according to a precoding granularity set, and the precoding granularity set comprises precoding granularity smaller than 2 Resource Blocks (RBs);

determining a target precoding granularity from the precoding granularity corresponding to the at least one target value;

and detecting the signal according to the target precoding granularity.
The method according to claim 1, wherein when the first indication information indicates at least two target values, the method further comprises:

and receiving second indication information, wherein the second indication information is used for indicating a first target value in the at least two target values, and the target precoding granularity is determined by the first target value.
The method according to claim 1 or 2, wherein the at least one target value comprises a first target value and a second target value, and wherein determining a target precoding granularity from the precoding granularity corresponding to the at least one target value comprises:

And determining the target precoding granularity from the precoding granularity corresponding to the first target value according to the precoding granularity corresponding to the second target value.
The method of claim 3, wherein the first target value corresponds to a first target precoding granularity and a second target precoding granularity, wherein the determining the target precoding granularity from the precoding granularity corresponding to the first target value according to the precoding granularity corresponding to the second target value comprises:

the first target precoding granularity is the target precoding granularity under the condition that the second target precoding granularity is the same as the precoding granularity corresponding to the second target value; or alternatively, the process may be performed,

and if the second target precoding granularity is different from the precoding granularity corresponding to the second target value, the second target precoding granularity is the target precoding granularity.
The method according to any one of claims 1-4, wherein determining a target precoding granularity from the precoding granularity corresponding to the at least one target value comprises:

and determining the target precoding granularity from the precoding granularity corresponding to the at least one target value according to the capability information of the terminal equipment.
The method according to any one of claims 1-5, further comprising:

and the terminal equipment reports the capability information, wherein the capability information is used for indicating the capability information that the terminal equipment supports less than 2 RB.
The method according to any one of claims 1-6, further comprising:

the precoding granularity set comprises a first set and a second set;

wherein the first set comprises: 1RB, 2RB, 4RB, and full bandwidth, the second set including: 2RB and full bandwidth; or alternatively, the first and second heat exchangers may be,

the first set includes: 2RB, 4RB, and full bandwidth, the second set including: 1RB, 4RB, and full bandwidth.
A method of indicating signal transmission, comprising:

the network equipment sends first indication information, wherein the first indication information is used for indicating at least one target value, the target value corresponds to at least one precoding granularity, the target value is determined according to a precoding granularity set, and the precoding granularity set comprises precoding granularity smaller than 2 Resource Blocks (RBs);

determining a target precoding granularity from the precoding granularity corresponding to the at least one target value;

and precoding the signal according to the target precoding granularity.
The method according to claim 8, wherein when the first indication information indicates at least two target values, the method further comprises:

and sending second indication information, wherein the second indication information is used for indicating a first target value in the at least two target values, and the target precoding granularity is determined by the first target value.
The method according to claim 8 or 9, wherein the at least one target value comprises a first target value and a second target value, and wherein determining a target precoding granularity from the precoding granularity corresponding to the at least one target value comprises:

and determining the target precoding granularity from the precoding granularity corresponding to the first target value according to the precoding granularity corresponding to the second target value.
The method of claim 10, wherein the first target value corresponds to a first target precoding granularity and a second target precoding granularity, wherein the determining the target precoding granularity from the precoding granularity corresponding to the first target value according to the precoding granularity corresponding to the second target value comprises:

the first target precoding granularity is the target precoding granularity under the condition that the second target precoding granularity is the same as the precoding granularity corresponding to the second target value; or alternatively, the process may be performed,

And if the second target precoding granularity is different from the precoding granularity corresponding to the second target value, the second target precoding granularity is the target precoding granularity.
The method according to any one of claims 8-11, wherein determining a target precoding granularity from the precoding granularity corresponding to the at least one target value comprises:

and determining the target precoding granularity from the precoding granularity corresponding to the at least one target value according to the capability information of the terminal equipment.
The method according to any one of claims 8-12, further comprising:

and receiving the capability information reported by the terminal equipment, wherein the capability information is used for indicating the capability information of the terminal equipment supporting less than 2 RB.
The method according to any one of claims 8-13, further comprising:

the precoding granularity set comprises a first set and a second set;

wherein the first set comprises: 1RB, 2RB, 4RB, and full bandwidth, the second set including: 2RB and full bandwidth; or alternatively, the first and second heat exchangers may be,

the first set includes: 2RB, 4RB, and full bandwidth, the second set including: 1RB, 4RB, and full bandwidth.
A communication device, comprising:

a communication unit, configured to receive first indication information, where the first indication information is used to indicate at least one target value, where the target value corresponds to at least one precoding granularity, and the target value is determined according to a precoding granularity set, and the precoding granularity set includes a precoding granularity smaller than 2 resource blocks RB;

a processing unit, configured to determine a target precoding granularity from the precoding granularity corresponding to the at least one target value;

the processing unit is further configured to detect the signal according to the target precoding granularity.
The apparatus of claim 15, wherein the device comprises a plurality of sensors,

the communication unit is further configured to receive second indication information, where the second indication information is used to indicate a first target value of the at least two target values, and the target precoding granularity is determined by the first target value.
The apparatus according to claim 15 or 16, wherein the at least one target value comprises a first target value and a second target value;

the processing unit is specifically configured to determine, according to the precoding granularity corresponding to the second target value, the target precoding granularity from the precoding granularity corresponding to the first target value.
The apparatus of claim 17, wherein the first target value comprises a first target precoding granularity and a second target precoding granularity,

the processing unit is specifically configured to, if the second target precoding granularity is the same as the precoding granularity corresponding to the second target value, determine that the first target precoding granularity is the target precoding granularity; or alternatively, the process may be performed,

and if the second target precoding granularity is different from the precoding granularity corresponding to the second target value, the second target precoding granularity is the target precoding granularity.
The device according to any one of claims 15-18, wherein,

the processing unit is specifically configured to determine, according to capability information of the terminal device, the target precoding granularity from the precoding granularity corresponding to the at least one target value.
The device according to any one of claims 15-19, wherein,

the communication unit is further configured to report capability information, where the capability information is used to instruct the terminal device to support capability information that is less than 2 RB.
The apparatus according to any one of claims 15-20, wherein the apparatus further comprises:

The precoding granularity set comprises a first set and a second set;

wherein the first set comprises: 1RB, 2RB, 4RB, and full bandwidth, the second set including: 2RB and full bandwidth; or alternatively, the first and second heat exchangers may be,

the first set includes: 2RB, 4RB, and full bandwidth, the second set including: 1RB, 4RB, and full bandwidth.
A communication device, comprising:

a communication unit, configured to send first indication information, where the first indication information is used to indicate at least one target value, where the target value corresponds to at least one precoding granularity, and the target value is determined according to a precoding granularity set, and the precoding granularity set includes a precoding granularity smaller than 2 resource blocks RB;

a processing unit, configured to determine a target precoding granularity from the precoding granularity corresponding to the at least one target value;

the processing unit is further configured to precode the signal according to the target precoding granularity.
The apparatus of claim 22, wherein the device comprises a plurality of sensors,

the communication unit is further configured to receive second indication information, where the second indication information is used to indicate a first target value of the at least two target values, and the target precoding granularity is determined by the first target value.
The apparatus according to claim 22 or 23, wherein the at least one target value comprises a first target value and a second target value;

the processing unit is specifically configured to determine, according to the precoding granularity corresponding to the second target value, the target precoding granularity from the precoding granularity corresponding to the first target value.
The apparatus of claim 24, wherein the first target value corresponds to a first target precoding granularity and a second target precoding granularity,

the processing unit is specifically configured to, if the second target precoding granularity is the same as the precoding granularity corresponding to the second target value, determine that the first target precoding granularity is the target precoding granularity; or alternatively, the process may be performed,

and if the second target precoding granularity is different from the precoding granularity corresponding to the second target value, the second target precoding granularity is the target precoding granularity.
The device according to any one of claims 22-25, wherein,

the processing unit is specifically configured to determine, according to capability information of the terminal device, the target precoding granularity from the precoding granularity corresponding to the at least one target value.
The apparatus of any one of claims 22-26, wherein,

the communication unit is further configured to receive capability information reported by the terminal device, where the capability information is used to indicate the terminal device to support capability information less than 2 RB.
The apparatus according to any one of claims 22-27, further comprising:

the precoding granularity set comprises a first set and a second set;

wherein the first set comprises: 1RB, 2RB, 4RB, and full bandwidth, the second set including: 2RB and full bandwidth; or alternatively, the first and second heat exchangers may be,

the first set includes: 2RB, 4RB, and full bandwidth, the second set including: 1RB, 4RB, and full bandwidth.
A communication device, comprising: a processor and a memory;

the memory is used for storing a computer program;

the processor is configured to execute the computer program stored in the memory, to cause the communication device to perform the method according to any one of claims 1 to 7, or to perform the method according to any one of claims 8 to 14.
A communication device comprising at least one processor and an interface, the at least one processor configured to execute a computer program to cause the communication device to perform the method of any one of claims 1 to 7 or to perform the method of any one of claims 8 to 14.
A computer readable storage medium storing a computer program which, when run on a computer, causes the computer to perform the method of any one of claims 1 to 7 or to perform the method of any one of claims 8 to 14.
A computer program product, comprising: the computer program product, when run on a communication device, causes the communication device to perform the method of any one of claims 1 to 7 or to perform the method of any one of claims 8 to 14.