CN116155445A

CN116155445A - Uplink precoding information receiving method, indicating method, terminal and network equipment

Info

Publication number: CN116155445A
Application number: CN202111389159.3A
Authority: CN
Inventors: 塔玛拉卡·拉盖施; 孙荣荣; 孙鹏
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2023-05-23

Abstract

The application discloses an uplink precoding information receiving method, an indicating method, a terminal and network side equipment, which belong to the technical field of wireless communication, and the uplink precoding information receiving method in the embodiment of the application comprises the following steps: the terminal receives a control signaling, wherein the control signaling is used for indicating precoding information of M sub-bands, and M is a positive integer.

Description

Uplink precoding information receiving method, indicating method, terminal and network equipment

Technical Field

The application belongs to the technical field of wireless communication, and particularly relates to an uplink precoding information receiving method, an indicating method, a terminal and network side equipment.

Background

At present, the New wireless (NR) system only supports wideband pre-coding for transmission on a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH), that is, when the network side schedules the PUSCH, a wideband pre-coding matrix indication (Transmitted Precoding Matrix Indicator, TPMI) is indicated to correspond to PUSCH resources on all the scheduled frequency domains. When the terminal transmits uplink data, one TPMI indicated by the network side is adopted to precode resources on all frequency domains of the PUSCH and then transmit the uplink data, and obviously, the mode has poor flexibility. Based on this, sub-band precoding is currently proposed. To support PUSCH for subband precoding, the network side needs to inform the terminal of subband precoding information, however, how to indicate subband precoding information has not yet been determined.

Disclosure of Invention

The embodiment of the application provides an uplink precoding information receiving method, an indicating method, a terminal and network side equipment, which can solve the problem of how to indicate sub-band precoding information.

In a first aspect, there is provided a method for receiving uplink precoding information, including:

the terminal receives a control signaling, wherein the control signaling is used for indicating precoding information of M sub-bands, and M is a positive integer.

In a second aspect, an uplink precoding information receiving device is provided, including:

the receiving module is used for receiving control signaling, wherein the control signaling is used for indicating precoding information of M sub-bands, and M is a positive integer.

In a third aspect, an uplink precoding information indication method is provided, including:

the network side equipment sends control signaling, wherein the control signaling is used for indicating precoding information of M sub-bands, and M is a positive integer.

In a fourth aspect, an uplink precoding information indicating device is provided, including:

the device comprises a sending module, a receiving module and a receiving module, wherein the sending module is used for sending control signaling, the control signaling is used for indicating precoding information of M sub-bands, and M is a positive integer.

In a fifth aspect, there is provided a terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the first aspect.

In a sixth aspect, a terminal is provided, including a processor and a communication interface, where the communication interface is configured to receive control signaling, where the control signaling is configured to indicate precoding information of M subbands, and M is a positive integer.

In a seventh aspect, a network side device is provided, comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method according to the third aspect.

In an eighth aspect, a network side device is provided, where the network side device includes a processor and a communication interface, where the communication interface is configured to send control signaling, where the control signaling is configured to indicate precoding information of M subbands, and M is a positive integer.

A ninth aspect provides an uplink precoding information indicating system, including: the terminal may be configured to perform the steps of the uplink precoding information receiving method according to the first aspect, and the network side device may be configured to perform the steps of the uplink precoding information indicating method according to the third aspect.

In a tenth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor, performs the steps of the method according to the first aspect, or performs the steps of the method according to the third aspect.

In an eleventh aspect, there is provided a chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being for running a program or instructions to implement the method according to the first aspect or to implement the method according to the third aspect.

In a twelfth aspect, there is provided a computer program/program product stored in a storage medium, the computer program/program product being executable by at least one processor to implement the steps of the uplink precoding information receiving method as described in the first aspect, or the computer program/program product being executable by at least one processor to implement the steps of the uplink precoding information indicating method as described in the third aspect.

In the embodiment of the application, the indication mode of the precoding information of the sub-bands is clarified, so that the terminal can determine the TPMI of each sub-band according to the sub-band precoding information indicated by the network side, and the resources of each sub-band are sent after the TPMI of each sub-band is used for precoding, thereby improving the flexibility.

Drawings

Fig. 1 is a block diagram of a wireless communication system to which embodiments of the present application are applicable;

Fig. 2 is a flow chart of an uplink precoding information receiving method in an embodiment of the present application;

fig. 3 is a schematic structural diagram of an uplink precoding information receiving device according to an embodiment of the present application;

fig. 4 is a flow chart of an uplink precoding information indication method in an embodiment of the present application;

fig. 5 is a schematic structural diagram of an uplink precoding information indicating device according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 7 is a schematic hardware structure of a terminal according to an embodiment of the present application;

fig. 8 is a schematic hardware structure of a network side device according to an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the terms "first" and "second" are generally intended to be used in a generic sense and not to limit the number of objects, for example, the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

It is noted that the techniques described in embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/evolution of LTE (LTE-Advanced, LTE-a) systems, may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single-carrier frequency division multiple access (SC-carrier Frequency Division Multiple Access, FDMA), and other systems. The terms "system" and "network" in embodiments of the present application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New air interface (NR) system for purposes of example and uses NR terminology in much of the description that follows, but these techniques are also applicable to applications other than NR system applications, such as generation 6 (6) ^th Generation, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may be a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side Device called a notebook, a personal digital assistant (Personal Digital Assistant, PDA), a palm top, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet appliance (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (weather Device), a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), a smart home (home Device with a wireless communication function, such as a refrigerator, a television, a washing machine, or a furniture), a game machine, a personal Computer (personal Computer, PC), a teller machine, or a self-service machine, and the Wearable Device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. Note that, the specific type of the terminal 11 is not limited in the embodiment of the present application. The network-side device 12 may comprise an access network device or a core network device, wherein the access network device 12 may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a radio access network element. Access network device 12 may include a base station, a WLAN access point, a WiFi node, or the like, which may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a home node B, a home evolved node B, a transmission and reception point (Transmitting Receiving Point, TRP), or some other suitable terminology in the art, and the base station is not limited to a particular technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiments of the present application, only a base station in an NR system is described as an example, and the specific type of the base station is not limited.

The uplink precoding information receiving method, the indicating method, the terminal and the network side device provided by the embodiment of the application are described in detail below through some embodiments and application scenarios thereof with reference to the accompanying drawings.

Referring to fig. 2, an uplink precoding information receiving method in an embodiment of the present application is characterized by comprising:

step 21: the terminal receives a control signaling, wherein the control signaling is used for indicating precoding information of M sub-bands, and M is a positive integer.

In the embodiment of the application, the indication mode of the precoding information of the sub-bands is clarified, so that the terminal can determine the TPMI of each sub-band according to the sub-band precoding information indicated by the network side, and the resources of each sub-band are sent after being precoded by the TPMI of each sub-band, thereby improving the flexibility.

The content contained in the control signaling is explained below.

In some embodiments of the present application, optionally, the control signaling may include:

and M pieces of precoding information, wherein each piece of precoding information corresponds to one of the M subbands.

The terminal may query a preset table according to the precoding information of each sub-band indicated in the control signaling, so as to determine a precoding matrix corresponding to each sub-band.

The current protocol is based on different precoding matrix sets supported by different terminal capabilities. For example, when the terminal capability is fullyantipartialantidnoncomponent (incoherent), the base station may configure codebook for the terminal, when the terminal capability is partialantidnoncomponent, the base station may configure codebook for the terminal, and when the terminal capability is non-component, the base station may configure codebook=non-component for the terminal, in which case the precoding information (i.e., bit field mapped to index in table 1) is 6 bits.

If the precoding information indicated by the network side is "0", and the terminal capability is fullyAndPartifAndNonCoher, look up table 1, determine the parameters of the 1 st row of the 1 st column of table 1, i.e. 1layer: TPMI=0, represent the rank=1 of the uplink PUSCH, the TPMI index is "0", determine table 2 according to rank=1, and determine the precoding matrix of the 1 st row and 1 st column in table 2 according to the TPMI index is "0".

If the precoding information indicated by the network side is "60", the table 1 is queried, the parameters of the 61 st row of the leftmost 1 st column of the table 1, namely 4layer: tpmi=3, the rank=4 representing the uplink PUSCH, the TPMI index is "3", the table 4 is determined according to the rank=1, and the precoding matrix of the 1 st row and 4 th column in the table 4 is determined according to the TPMI index is "0".

TABLE 1

Table 2 4 antenna rank=1 precoding matrix

Table 3 4 antenna rank=2 precoding matrix

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Table 4 4 antenna rank=3 precoding matrix

Table 5 4 antenna rank=4 precoding matrix

When the control signaling includes M pieces of precoding information, if each piece of precoding information is 6 bits, the required length is 6*M bits, and the overhead is large.

In some cases, the precoding information of some of the M subbands is the same, for example, the precoding information of 2 subbands is the same, and if the same precoding information is indicated only once, the signaling overhead can be reduced.

In other embodiments of the present application, optionally, the control signaling includes:

n pieces of precoding information, wherein N is a positive integer which is more than or equal to 2 and less than M;

and an information indication field, configured to indicate one precoding information of the N precoding information corresponding to each of the M subbands or a part of the M subbands.

In this embodiment, the precoding information of each subband is not directly indicated, and the same precoding information is indicated only once, and the information indication field indicates which of the N precoding information the precoding information of the subband is, so as to save signaling overhead.

The information indication field may take a variety of forms for indication, as exemplified below.

In some embodiments, optionally, the information indication field includes:

and M first information fields, wherein each first information field corresponds to one sub-band in the M sub-bands, and each first information field is used for indicating one piece of precoding information in the N pieces of precoding information.

Optionally, each of the first information fields has a size of log ₂ Upper rounding of (N).

For example:

example 1

The control signaling indicated by the network side equipment comprises n=2 precoding information and m=4 first information fields.

The 2 precoding information indicated in the control signaling is: { TPMI2} and { TPMI0};

4 first information fields, each of which has a size of 1 bit (log ₂ (2) The upper rounding of (1), assuming that the first information field is "0" for TPMI2 and "1" for TPMI0;

such as: the 4 first information fields in the control signaling indicate 0110, and then the precoding information of the corresponding 4 sub-bands is respectively TPMI2, TPMI0 and TPMI2;

also, for example, when m=6, 6 bits are indicated in the control signaling, and when m=8, 8 bits are indicated in the control signaling.

The method can effectively reduce the control signaling overhead, for example, one TPMI domain size is 6 bits, if 4 subbands independently indicate that 24 bits are needed, according to the method n=2, m=4, only 16 bits are needed.

In some other embodiments, optionally, the information indication field includes:

and M-1 first information fields, wherein a first sub-band or a last sub-band in the M sub-bands corresponds to pre-coding information of preset positions in the N pre-coding information by default, the M-1 first information fields correspond to other M-1 sub-bands except the first sub-band or the last sub-band, and each first information field is used for indicating one pre-coding information in the N pre-coding information.

The preset position is, for example, a first position or a last position.

Optionally, the first information field is largeLog of small size ₂ Upper rounding of (N).

For example:

example 2

The terminal has m=4 subbands, and the control signaling indicated by the network side device includes n=2 precoding information and M-1=3 first information fields.

each first information field has a size of 1 bit (log ₂ (2) The upper rounding of (1), assuming that the first information field is "0" for TPMI2 and "1" for TPMI0;

and the first sub-band of the 4 sub-bands defaults to the pre-coding information corresponding to the first position of the 2 pre-coding information, namely determining the pre-coding information of the first sub-band to be TPMI2.

Such as: the first information fields of 3 in the control signaling are indicated as 110, and then the precoding information of the other 3 subbands except the first subband is TPMI0, TPMI2, respectively.

and a second information field, wherein the second information field is used for indicating one selectable item in a plurality of selectable items, each selectable item is used for indicating one combination of precoding information of the M sub-bands, and the precoding information is the precoding information in the N precoding information.

Optionally, the second information domain has a size of m×log ₂ Upper rounding of (N).

For example:

example 3

The terminal has m=4 subbands, and the control signaling indicated by the network side device includes n=2 precoding information and 1 second information field.

the second information field has a size of 4 bits (M log ₂ (2) Upper rounding of (2);

the second information field may indicate a plurality (M ^N I.e.4 ² =16) one of the alternatives, for example:

the second information field indicates 0000, and the precoding information of the corresponding 4 sub-bands is TPMI0, TPMI0 respectively;

The second information field indicates 0001, and the precoding information of the corresponding 4 sub-bands is TPMI0, TPMI2;

……

a second information field, wherein a first subband or a last subband of the M subbands defaults to precoding information corresponding to a preset position of the N precoding information, the second information field is used for indicating one selectable item of a plurality of selectable items, each selectable item is used for indicating a combination of precoding information of M-1 subbands except the first subband or the last subband, and the precoding information is precoding information of the N precoding information.

Optionally, the second information field has a size of (M-1) log ₂ Upper rounding of (N).

For example:

example 4

the second information field has a size of 4 bits (log ₂ (2) Upper rounding of (2);

The second information field may indicate a plurality (M ^N I.e. 3 ² =9) one of the alternatives, for example:

the second information field indicates 000, and the precoding information of the corresponding 3 subbands (other subbands except the first subband) is TPMI0, respectively;

the second information field indicates 001, and the precoding information of the corresponding 4 sub-bands is TPMI0, TPMI0 and TPMI2 respectively;

……

in this embodiment of the present application, optionally, the order of the N precoding information is ordered according to a precoding index size, or ordered according to an order indicated in the control signaling.

For example, 2 pieces of precoding information indicated in the control signaling are { TPMI2} and { TPMI0}, if ordered according to the precoding index size, "0" represents TPMI0 and "1" represents TPMI2; if ordered in the order indicated in the control signaling, "0" represents TPMI2 and "1" represents TPMI1.

For example:

example 5

4 first information fields, each of which has a size of 1 bit (log ₂ (2) The upper rounding of (2), the order of the 2 pieces of precoding information is ordered according to the precoding index size, and then the first information field is '0' for TPMI0 and '1' for TPMI2;

such as: the 4 first information fields in the control signaling are designated as 0110, and then the precoding information of the corresponding 4 sub-bands is TPMI0, TPMI2, TPMI0 respectively.

In this embodiment, optionally, the control signaling is downlink control information (DownlinkControlInformation, DCI). Namely, the precoding information of the sub-band is indicated in a dynamic formal mode, so that the flexibility is further improved.

In this embodiment, optionally, the control signaling is multi-level control signaling, where,

the first-stage control signaling comprises all precoding information in the N precoding information, and the rest-stage control signaling comprises the information indication domain; or alternatively, the process may be performed,

the first-stage control signaling comprises part of precoding information in the N pieces of precoding information, and the rest-stage control signaling comprises rest of precoding information in the N pieces of precoding information and the information indication domain.

For example, the control signaling DCI, and is a 2-level DCI, wherein,

the first-stage DCI comprises all precoding information in the N precoding information, and the second-stage DCI comprises the information indication domain; or alternatively, the process may be performed,

The first-stage DCI comprises part of precoding information in the N pieces of precoding information, and the second-stage DCI comprises the rest of precoding information in the N pieces of precoding information and the information indication domain.

In this embodiment, optionally, the control signaling further includes: and M-1 third information fields, wherein the M-1 third information fields are respectively used for indicating the end positions of the resource blocks of the first sub-band to the M-1 sub-band, and the M sub-bands occupy a plurality of continuous resource blocks.

Optionally, the resource blocks are physical resource blocks (Physical Resource Block, PRBs) or virtual resource blocks (Virtual resource block, VRBs).

In this embodiment, optionally, the values of N and/or M may be configured through radio resource control (Radio Resource Control, RRC) signaling or media access control (Media Access Control Control Element, MAC CE) signaling.

According to the uplink precoding information receiving method provided by the embodiment of the application, the execution main body can be an uplink precoding information receiving device. In the embodiment of the present application, an uplink precoding information receiving device provided in the embodiment of the present application is described by taking an example of an uplink precoding information receiving method performed by the uplink precoding information receiving device.

Referring to fig. 3, the embodiment of the present application further provides an uplink precoding information receiving apparatus 30, including:

the receiving module 31 is configured to receive a control signaling, where the control signaling is used to indicate precoding information of M subbands, and M is a positive integer.

Optionally, the control signaling includes:

Optionally, the information indication field includes:

Optionally, the order of the N precoding information is ordered according to the precoding index size, or ordered according to the order indicated in the control signaling.

Optionally, the control signaling is DCI.

Optionally, the control signaling is multi-level control signaling, wherein,

Optionally, the control signaling further includes:

and M-1 third information fields, wherein the M-1 third information fields are respectively used for indicating the end positions of the resource blocks of the first sub-band to the M-1 sub-band, and the M sub-bands occupy a plurality of continuous resource blocks.

Optionally, the resource block is a physical resource block or a virtual resource block.

The uplink precoding information receiving device in the embodiment of the present application may be an electronic device, for example, an electronic device with an operating system, or may be a component in the electronic device, for example, an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices than a terminal. By way of example, terminals may include, but are not limited to, the types of terminals 11 listed above, other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., and embodiments of the application are not specifically limited.

The uplink precoding information receiving device provided in the embodiment of the present application can implement each process implemented by the method embodiment of fig. 2, and achieve the same technical effects, so that repetition is avoided, and no further description is provided here.

Referring to fig. 4, the embodiment of the present application further provides an uplink precoding information indication method, including:

step 41: the network side equipment sends control signaling, wherein the control signaling is used for indicating precoding information of M sub-bands, and M is a positive integer.

In this embodiment of the present application, before sending the control signaling, the network side device further includes: the network side equipment receives a reference signal (Sounding Reference Signal, SRS) for channel sounding, which is sent by the terminal, and determines precoding information of M sub-bands according to the received SRS and the SRS sending bandwidth.

The SRS transmission bandwidth is determined according to the configured Bsrs and Csrs as shown in table 6:

TABLE 6

Optionally, the control signaling includes:

Optionally, the information indication field includes:

Optionally, the control signaling is DCI.

Optionally, the control signaling is multi-level control signaling, wherein,

Optionally, the control signaling further includes:

According to the uplink precoding information indicating method provided by the embodiment of the application, the execution main body can be an uplink precoding information indicating device. In the embodiment of the present application, an uplink precoding information indicating device provided in the embodiment of the present application is described by taking an example of an uplink precoding information indicating method performed by the uplink precoding information indicating device.

Referring to fig. 5, the embodiment of the present application further provides an uplink precoding information indicating device 50, including:

A sending module 51, configured to send control signaling, where the control signaling is used to indicate precoding information of M subbands, and M is a positive integer.

Optionally, the control signaling includes:

Optionally, the information indication field includes:

Optionally, the control signaling is DCI.

Optionally, the control signaling is multi-level control signaling, wherein,

Optionally, the control signaling further includes:

The uplink precoding information indicating device provided in the embodiment of the present application can implement each process implemented by the method embodiment of fig. 4, and achieve the same technical effects, so that repetition is avoided, and no further description is given here.

Optionally, as shown in fig. 6, the embodiment of the present application further provides a communication device 60, including a processor 61 and a memory 62, where the memory 62 stores a program or an instruction that can be executed on the processor 61, for example, when the communication device 60 is a terminal, the program or the instruction is executed by the processor 61 to implement each step of the above-mentioned uplink precoding information receiving method embodiment, and the same technical effects can be achieved. When the communication device 60 is a network side device, the program or the instruction implements the steps of the above embodiment of the uplink precoding information indication method when executed by the processor 61, and the same technical effects can be achieved, so that repetition is avoided and no further description is given here.

The embodiment of the application also provides a terminal, which comprises a processor and a communication interface, wherein the communication interface is used for receiving control signaling, the control signaling is used for indicating precoding information of M sub-bands, and M is a positive integer. The terminal embodiment corresponds to the terminal-side method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the terminal embodiment, and the same technical effects can be achieved. Specifically, fig. 7 is a schematic hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 70 includes, but is not limited to: at least some of the components of the radio frequency unit 71, the network module 72, the audio output unit 73, the input unit 74, the sensor 75, the display unit 76, the user input unit 77, the interface unit 78, the memory 79, the processor 710, and the like.

Those skilled in the art will appreciate that the terminal 70 may further include a power source (e.g., a battery) for powering the various components, which may be logically connected to the processor 710 via a power management system so as to perform functions such as managing charging, discharging, and power consumption via the power management system. The terminal structure shown in fig. 7 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine certain components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 74 may include a graphics processing unit (Graphics Processing Unit, GPU) 741 and a microphone 742, with the graphics processor 741 processing image data for still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 76 may include a display panel 761, and the display panel 761 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 77 includes at least one of a touch panel 771 and other input devices 772. The touch panel 771 is also referred to as a touch screen. The touch panel 771 may include two parts, a touch detection device and a touch controller. Other input devices 772 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

In this embodiment, after receiving the downlink data from the network side device, the radio frequency unit 71 may transmit the downlink data to the processor 710 for processing; in addition, the radio frequency unit 71 may send uplink data to the network side device. Typically, the radio frequency unit 71 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 79 may be used to store software programs or instructions as well as various data. The memory 79 may mainly include a first memory area storing programs or instructions and a second memory area storing data, wherein the first memory area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 79 may include volatile memory or nonvolatile memory, or the memory 79 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), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). Memory 79 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

Processor 710 may include one or more processing units; optionally, processor 710 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, and the like, and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 710.

The radio frequency unit 71 is configured to receive control signaling, where the control signaling is used to indicate precoding information of M subbands, and M is a positive integer.

Optionally, the control signaling includes:

Optionally, the information indication field includes:

Optionally, the control signaling is DCI.

Optionally, the control signaling is multi-level control signaling, wherein,

Optionally, the control signaling further includes:

The embodiment of the application also provides network side equipment, which comprises a processor and a communication interface, wherein the communication interface is used for sending control signaling, the control signaling is used for indicating precoding information of M sub-bands, and M is a positive integer. The network side device embodiment corresponds to the network side device method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the network side device embodiment, and the same technical effects can be achieved.

Specifically, the embodiment of the application also provides network side equipment. As shown in fig. 8, the network side device 80 includes: an antenna 81, a radio frequency device 82, a baseband device 83, a processor 84 and a memory 85. The antenna 81 is connected to a radio frequency device 82. In the uplink direction, the radio frequency device 82 receives information via the antenna 81, and transmits the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes information to be transmitted, and transmits the processed information to the radio frequency device 82, and the radio frequency device 82 processes the received information and transmits the processed information through the antenna 81.

The method performed by the network side device in the above embodiment may be implemented in the baseband apparatus 83, and the baseband apparatus 83 includes a baseband processor.

The baseband device 83 may, for example, include at least one baseband board, where a plurality of chips are disposed, as shown in fig. 8, where one chip, for example, a baseband processor, is connected to the memory 85 through a bus interface, so as to call a program in the memory 85 to perform the network device operation shown in the above method embodiment.

The network-side device may also include a network interface 86, such as a common public radio interface (common public radio interface, CPRI).

Specifically, the network side device 800 of the embodiment of the present invention further includes: instructions or programs stored in the memory 85 and executable on the processor 84, the processor 84 invokes the instructions or programs in the memory 85 to perform the method performed by the modules shown in fig. 5, and achieve the same technical effects, and are not repeated here.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, where the program or the instruction implements each process of the uplink precoding information receiving method embodiment when being executed by a processor, or where the program or the instruction implements each process of the uplink precoding information indicating method embodiment when being executed by a processor, and the same technical effects can be achieved, and for avoiding repetition, a detailed description is omitted herein.

Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, where the processor is configured to run a program or an instruction, implement each process of the uplink precoding information receiving method embodiment, or implement each process of the uplink precoding information indicating method embodiment, and achieve the same technical effect, so that repetition is avoided, and no redundant description is given here.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

The embodiments of the present application further provide a computer program/program product, where the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement each process of the uplink precoding information receiving method embodiment, or the computer program/program product is executed by at least one processor to implement each process of the uplink precoding information indicating method embodiment, and the same technical effects can be achieved, so that repetition is avoided, and details are not repeated here.

The embodiment of the application also provides an uplink precoding information indicating system, which comprises: the terminal can be used for executing the steps of the uplink precoding information receiving method, and the network side equipment can be used for executing the steps of the uplink precoding information indicating method.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solutions of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), comprising several instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method described in the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims

1. The uplink precoding information receiving method is characterized by comprising the following steps:

2. The method according to claim 1, wherein the control signaling comprises:

3. The method of claim 2, wherein the information indication field comprises:

4. The method of claim 2, wherein the information indication field comprises:

5. The method of claim 3 or 4, wherein each of the first information fields has a size log ₂ Upper rounding of (N).

6. The method of claim 2, wherein the information indication field comprises:

7. The method of claim 6, wherein the second information field has a size of M log ₂ Upper rounding of (N).

8. The method of claim 2, wherein the information indication field comprises:

9. The method of claim 8, wherein the second information field has a size of (M-1) log ₂ Upper rounding of (N).

10. The method of claim 2, wherein the order of the N precoding information is ordered by precoding index size or ordered by order indicated in the control signaling.

11. The method according to claim 1, characterized in that the control signaling is downlink control information, DCI.

12. The method of claim 2, wherein the control signaling is multi-level control signaling, wherein,

13. The method according to claim 1, wherein the control signaling further comprises:

14. The method of claim 13, wherein the resource block is a physical resource block or a virtual resource block.

15. An uplink precoding information receiving device, comprising:

16. An uplink precoding information indication method is characterized by comprising the following steps:

17. The method according to claim 16, wherein the control signaling comprises:

18. The method of claim 17, wherein the information indication field comprises:

19. The method of claim 17, wherein the information indication field comprises:

20. The method of claim 18 or 19, wherein each of the first information fields has a size of log ₂ Upper rounding of (N).

21. The method of claim 17, wherein the information indication field comprises:

22. The method of claim 21, wherein the second information field has a size of M log ₂ Upper rounding of (N).

23. The method of claim 17, wherein the information indication field comprises:

24. The method of claim 23, wherein the second information field has a size of (M-1) log ₂ Upper rounding of (N).

25. The method of claim 17, wherein the order of the N precoding information is ordered by precoding index size or ordered by order indicated in the control signaling.

26. The method of claim 16, wherein the control signaling is DCI.

27. The method of claim 17, wherein the control signaling is multi-level control signaling, wherein,

28. The method according to claim 17, wherein the control signaling further comprises:

29. The method of claim 28, wherein the resource block is a physical resource block or a virtual resource block.

30. An uplink precoding information indicating device, comprising:

31. A terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the uplink precoding information receiving method of any one of claims 1 to 14.

32. A network side device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the uplink precoding information indication method of any of claims 16 to 29.

33. A readable storage medium, wherein a program or an instruction is stored on the readable storage medium, which when executed by a processor, implements the uplink precoding information receiving method according to any one of claims 1 to 14, or implements the steps of the uplink precoding information indicating method according to any one of claims 16 to 29.