WO2021208938A1

WO2021208938A1 - Method and apparatus for determining number of data transmission layers, and communication device

Info

Publication number: WO2021208938A1
Application number: PCT/CN2021/087124
Authority: WO
Inventors: 李娜
Original assignee: 维沃移动通信有限公司
Priority date: 2020-04-14
Filing date: 2021-04-14
Publication date: 2021-10-21
Also published as: CN113543158A; CN113543158B

Abstract

The present invention relates to the technical field of communications, and disclosed in embodiments of the present invention are a method and apparatus for determining the number of data transmission layers, and a communication device. The method for determining the number of data transmission layers is applied to a terminal and comprises: receive information of the number of transmission layers of a network side device, wherein the information of the number of transmission layers indicates that the number of transmission layers of PUSCH repetition Type B is greater than 1; and the terminal performs any one of the following operations: canceling transmission of a plurality of actual repetitions; and determining that the number of transmission layers of PUSCH repetition Type B is equal to the number of transmission layers of nominal repetitions. The method for determining the number of data transmission layers is applied to a network side device and comprises: sending information of the number of transmission layers to a terminal, wherein the information of the number of transmission layers indicates that the number of transmission layers of PUSCH repetition Type B is greater than or equal to 1.

Description

Method and device for determining the number of data transmission layers, and communication equipment

Cross-references to related applications

This application claims the priority of Chinese Patent Application No. 202010291848.X filed in China on April 14, 2020, the entire content of which is incorporated herein by reference.

Technical field

The present invention relates to the field of communication technology, and in particular to a method and device for determining the number of data transmission layers, and communication equipment.

Background technique

In the related communication protocol, repetition is based on slots. K repetitive transmissions need to occupy K slots, and the time resources (the starting position of transmission) occupied by data transmission in each slot are the same. of. If the number of repeated transmissions is greater than 1, the data can only be transmitted using single-layer. This repetitive transmission mechanism can be applied to the transmission of uplink data, and is called Physical Uplink Shared Channel (PUSCH) repetition Type A, that is, physical uplink shared channel repetition type A.

Another communication protocol introduces repetitive transmission based on sub-slot or mini-slot or X symbol(s) where X>=1. K nominal repetitions can be performed in a slot. Back-to-back continuous transmission. When a nominal transmission time domain resource crosses the slot boundary or there are invalid or unavailable resources and symbols in the time domain resource, such as downlink symbols, the nominal transmission will be affected by the slot boundary or invalid resources and symbols. It is divided into multiple actual repetitions. The repetitive transmission mechanism is called PUSCH repetition Type B, that is, physical uplink shared channel repetition type B.

In the related communication protocol, for PUSCH repetition Type A, when the value of the number of repetitive transmissions K is set or specified to be greater than 1, the number of transmission layers of PUSCH repetition Type A is 1. For PUSCH repetition Type B, when the value of the number of transmissions K of nominal repetitive transmission is set or specified to be greater than 1, there is no provision to limit the number of transmission layers of PUSCH repetition Type B to one layer.

Summary of the invention

The embodiment of the present invention provides a method and device for determining the number of data transmission layers, and communication equipment, which can reduce the loss of data transmission and save terminal power.

In the first aspect, an embodiment of the present invention provides a method for determining the number of data transmission layers, which is applied to a terminal, and the method includes:

Acquire configuration information of the terminal, where the configuration information includes: physical uplink shared channel repetition Type B, the value of the number of transmission times K of the nominal repeated transmission is 1, and the nominal repeated transmission is divided into multiple actual repeated transmissions;

Receiving information about the number of transmission layers of the network side device, where the information about the number of transmission layers indicates that the number of transmission layers of PUSCH repetition Type B is greater than one;

The terminal performs any one of the following operations:

Abandon the multiple transmissions that are actually repeated transmissions;

It is determined that the number of transmission layers of PUSCH repetition Type B is equal to the number of transmission layers of the nominal repetitive transmission.

In the second aspect, an embodiment of the present invention also provides a method for determining the number of data transmission layers, which is applied to a network side device, and includes:

The transmission layer number information is sent to the terminal, where the transmission layer number information indicates that the physical uplink shared channel repetition type PUSCH repetition Type B has a transmission layer number greater than 1 or equal to 1.

In a third aspect, an embodiment of the present invention also provides a device for determining the number of data transmission layers, which is applied to a terminal, and the device includes:

The obtaining module is used to obtain configuration information of the terminal, the configuration information includes: physical uplink shared channel repetition type PUSCH repetition Type B, the value of the number of transmissions K of nominal repetitive transmission is 1, and the nominal repetitive transmission is divided into multiple actual repetitions transmission;

The receiving module is configured to receive information about the number of transmission layers of the network side device, where the information about the number of transmission layers indicates that the number of transmission layers of PUSCH repetition Type B is greater than one;

Processing module, used to perform any of the following operations:

Abandon the multiple transmissions that are actually repeated transmissions;

In a fourth aspect, an embodiment of the present invention also provides a device for determining the number of data transmission layers, which is applied to a network side device, and includes:

The sending module is configured to send transmission layer number information to the terminal, where the transmission layer number information indicates that the physical uplink shared channel repetition type PUSCH repetition Type B has a transmission layer number greater than 1 or equal to 1.

In a fifth aspect, an embodiment of the present invention also provides a communication device. The communication device includes a processor, a memory, and a program stored on the memory and running on the processor, and the processor executes the The program implements the steps of the method for determining the number of data transmission layers as described above.

In a sixth aspect, an embodiment of the present invention provides a computer-readable storage medium with a program stored on the computer-readable storage medium, and when the program is executed by a processor, the method for determining the number of data transmission layers as described above is implemented A step of.

In the above scheme, the behavior of the terminal when a nominal repeated transmission is divided into multiple actual repeated transmissions is clarified. If the terminal can transmit and the number of transmission layers is clarified, then the loss of data transmission can be reduced; if the terminal cannot transmit, then the restriction on the base station configuration can be reduced and the power of the terminal can be saved.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present invention more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor.

Fig. 1 shows a block diagram of a mobile communication system to which an embodiment of the present invention can be applied;

Figure 2 shows a schematic diagram of PUSCH repetition Type A;

Figure 3 shows a schematic diagram of PUSCH repetition Type B;

Figure 4 shows a schematic diagram of dynamic scheduling of uplink transmission;

Figure 5 shows a schematic diagram of Type1 unlicensed uplink transmission;

Figure 6 shows a schematic diagram of Type 2 unlicensed uplink transmission;

FIG. 7 shows a schematic flowchart of a method for determining the number of data transmission layers of a terminal according to an embodiment of the present invention;

FIG. 8 shows a schematic flowchart of a method for determining the number of data transmission layers of a network side device according to an embodiment of the present invention;

FIG. 9 shows a schematic diagram of the behavior of a network side device in a specific embodiment of the present invention;

FIG. 10 shows a schematic diagram of the behavior of a terminal according to a specific embodiment of the present invention;

FIG. 11 shows a schematic diagram of a module structure of a terminal according to an embodiment of the present invention;

FIG. 12 shows a schematic diagram of a module structure of a network side device according to an embodiment of the present invention;

FIG. 13 shows a block diagram of a terminal according to an embodiment of the present invention;

Fig. 14 shows a block diagram of a network side device according to an embodiment of the present invention.

Detailed ways

Hereinafter, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although the drawings show exemplary embodiments of the present invention, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

The terms "including" and "having" in the specification and claims of this application and any variations of them are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or process that includes a series of steps or units. The equipment is not necessarily limited to those clearly listed steps or units, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or equipment. In the description and claims, "and/or" means at least one of the connected objects.

The technology described in this article is not limited to Long Term Evolution (LTE)/LTE-Advanced (LTE-A) systems, and can also be used in various wireless communication systems, such as Code Division Multiple Access (Code Division). Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single Carrier Frequency Single-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" are often used interchangeably. The CDMA system can implement radio technologies such as CDMA2000 and Universal Terrestrial Radio Access (UTRA). UTRA includes Wideband Code Division Multiple Access (WCDMA) and other CDMA variants. The TDMA system can implement radio technologies such as the Global System for Mobile Communication (GSM). OFDMA system can realize such as UltraMobile Broadband (UMB), Evolved UTRA (Evolution-UTRA, E-UTRA), IEEE802.11 (Wi-Fi), IEEE802.16 (WiMAX), IEEE802.20, Flash-OFDM, etc. Radio technology. UTRA and E-UTRA are part of Universal Mobile Telecommunications System (UMTS). LTE and more advanced LTE (such as LTE-A) are new UMTS versions that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named "3rd Generation Partnership Project" (3GPP). CDMA2000 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2). The techniques described in this article can be used for the systems and radio technologies mentioned above, as well as other systems and radio technologies. However, the following description describes the NR system for exemplary purposes, and NR terminology is used in most of the following description, although these techniques can also be applied to applications other than NR system applications.

The following description provides examples and does not limit the scope, applicability, or configuration set forth in the claims. Changes may be made to the function and arrangement of the discussed elements without departing from the spirit and scope of the present disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the described method may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Please refer to FIG. 1, which shows a block diagram of a wireless communication system to which an embodiment of the present invention can be applied. The wireless communication system includes a terminal 11 and a network side device 12. Among them, the terminal 11 may also be referred to as a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a mobile phone, a tablet (Personal Computer), a laptop (Laptop Computer), or a personal digital assistant (Personal Digital Assistant). , PDA), mobile Internet device (Mobile Internet Device, MID), wearable device (Wearable Device) or in-vehicle equipment and other terminal side devices, it should be noted that the specific type of terminal 11 is not limited in the embodiment of the present invention . The network side device 12 may be a base station or a core network, where the above-mentioned base station may be a base station of 5G and later versions (for example: gNB, 5G NR NB, etc.), or a base station in other communication systems (for example: eNB, WLAN access point) , Or other access points, etc.), or a location server (for example: E-SMLC or LMF (Location Manager Function)), where the base station can be called Node B, Evolved Node B, Access Point, Base Transceiver Station (Base Transceiver Station, BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Node B, Evolved Node B (eNB), Home B Node, home evolved Node B, WLAN access point, WiFi node, or some other appropriate term in the field, as long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary. In the embodiment of the invention, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

The base station may communicate with the terminal 11 under the control of the base station controller. In various examples, the base station controller may be a part of a core network or some base stations. Some base stations can communicate control information or user data with the core network through the backhaul. In some examples, some of these base stations may directly or indirectly communicate with each other through a backhaul link, which may be a wired or wireless communication link. The wireless communication system can support operations on multiple carriers (waveform signals of different frequencies). Multi-carrier transmitters can simultaneously transmit modulated signals on these multiple carriers. For example, each communication link may be a multi-carrier signal modulated according to various radio technologies. Each modulated signal can be sent on a different carrier and can carry control information (for example, reference signals, control channels, etc.), overhead information, data, and so on.

The base station may perform wireless communication with the terminal 11 via one or more access point antennas. Each base station can provide communication coverage for its corresponding coverage area. The coverage area of an access point can be divided into sectors that constitute only a part of the coverage area. The wireless communication system may include different types of base stations (for example, a macro base station, a micro base station, or a pico base station). The base station can also utilize different radio technologies, such as cellular or WLAN radio access technologies. The base stations can be associated with the same or different access networks or operator deployments. The coverage areas of different base stations (including coverage areas of the same or different types of base stations, coverage areas using the same or different radio technologies, or coverage areas belonging to the same or different access networks) may overlap.

In the related communication protocol, as shown in Figure 2, PUSCH repetition Type A is slot-based, K repeated transmissions need to occupy K slots, and the time resources occupied by data transmission in each slot (the starting position of transmission) are identical. If the number of repeated transmissions is greater than 1, the data can only be transmitted using single-layer.

In another communication protocol, as shown in Figure 3, PUSCH repetition Type B is based on sub-slot or mini-slot or X symbols, X>=1, K nominal repetitions can be in one Continuous "back-to-back" transmission is carried out in the slot. When a nominally repeated transmission time domain resource has to cross the slot boundary or there are invalid or unavailable resources and symbols in the time domain resource, such as downlink symbols, the nominal repeated transmission will be slotted or invalid resources and symbols It is divided into multiple actual repetitions. As shown in Figure 3, nominal repetition 3 is divided into actual repetition 3.1 and actual repetition 3.2.

The uplink transmission methods are divided into dynamic grant-based uplink transmission and unlicensed scheduling (configured grant-based) uplink transmission.

Dynamically scheduled uplink transmission is characterized by transmission parameters such as the number of transmission layers, Modulation and Coding Scheme (MCS), specific time-frequency resources can be dynamically indicated, and the number of repeated transmissions K can be dynamic or high-level semi-static Configuration, as shown in Figure 4, where UL grant scheduling is uplink grant scheduling, and time represents the time domain.

Unauthorized uplink transmission is divided into two sub-types, Type 1 and Type 2, respectively, Type 1 PUSCH transmission (transmissions) with a configured grant and Type 2 PUSCH transmissions with a configured grant. As shown in Figure 5, Type 1 PUSCH transmissions with a configured grant all transmission parameters are semi-statically configured by the upper layer, and its transmission resources appear periodically; as shown in Figure 6, Type 2 PUSCH transmissions with a configured grant, and its transmission parameters are configured by the upper layer and The physical layer is configured and indicated together. The upper layer mainly configures the period of transmission resources semi-statically, and the physical layer mainly indicates transmission parameters such as Modulation and Coding Scheme (MCS), specific time-frequency resources, and the number of transmission layers. In Figure 5 and Figure 6, RRC is Radio Resource Control.

In the related communication protocol, for PUSCH repetition Type A, when the value of the number of repetitive transmissions K is set or specified to be greater than 1, the main purpose is to achieve a lower coding rate to improve coverage or data reliability, and there is no need to support multi-layer transmission. Therefore, the number of transmission layers of PUSCH repetition Type A is limited to one layer. For PUSCH repetition Type B, when the value of the number of nominal repetitive transmissions K is set or specified to be greater than 1, the main purpose of achieving a lower coding rate to improve coverage or data reliability has not changed, but there are no specified restrictions. The number of transmission layers of PUSCH repetition Type B is 1.

The embodiment of the present invention provides a method for determining the number of data transmission layers, which is applied to a terminal. As shown in FIG. 7, the method includes:

Step 101: Obtain configuration information of the terminal, where the configuration information includes: physical uplink shared channel repetition type PUSCH repetition Type B, the value of the number of transmissions K of nominal repetitive transmission is 1, and the nominal repetitive transmission is divided into multiple actual repetitive transmissions;

Step 102: Receive transmission layer number information of the network side device, where the transmission layer number information indicates that the number of transmission layers of PUSCH repetition Type B is greater than one;

Step 103: The terminal performs any one of the following operations:

Abandon the multiple transmissions that are actually repeated transmissions;

Among them, the terminal can be configured as PUSCH repetition Type B through network-side device configuration, pre-configuration, and/or agreement. The network-side device can configure the value of the number of transmissions K of the terminal's nominal repeated transmission to be 1, and the time domain of the nominal repeated transmission The resource crosses the boundary of the time slot slot or there are invalid or unavailable resources and symbols in the time domain resource, and the nominal repeated transmission is divided into multiple actual repeated transmissions by the slot or invalid resources and symbols.

In some embodiments, after determining that the number of transmission layers of PUSCH repetition Type B is equal to the number of transmission layers of the nominal repetitive transmission, the method further includes:

The plurality of actual repeated transmissions are transmitted using the number of transmission layers of the nominal repeated transmission.

In this embodiment, the behavior of the terminal when a nominal repeated transmission is divided into multiple actual repeated transmissions is clarified. If the terminal can transmit and the number of transmission layers is clear, then the loss of data transmission can be reduced; if the terminal cannot transmit, it can reduce the restrictions on the base station configuration and save the power of the terminal; thereby overcoming the transmission of repeated transmissions under the name When the value of the number K is 1, the nominal repeated transmission is divided into multiple actual repeated transmissions because the uplink transmission resource crosses the boundary of the time slot or invalid resources (such as downlink symbols) are divided into multiple actual repetitions, and the terminal cannot determine whether to transmit multiple actual repetitions , And if the transmission is carried out, it is impossible to determine the defects of the number of uplink transmission layers.

In some embodiments, the method includes any of the following:

For dynamically scheduled uplink transmission, the terminal uses the number of transmission layers of the nominal repeated transmission to transmit the multiple actual repeated transmissions;

For unlicensed uplink transmission, the terminal abandons multiple transmissions that are actually repeated transmissions.

That is, whether and how the terminal performs multiple actual repetition transmissions depends on the terminal implementation. For dynamically scheduled uplink transmission, the terminal can transmit multiple actual repetitions. The number of transmission layers of the actual repetition is equal to the original nominal repetition configured by the network side device; For unlicensed uplink transmission, the terminal abandons multiple actual repetition transmissions and does not perform transmission.

The embodiment of the present invention provides a method for determining the number of data transmission layers, which is applied to a network side device, as shown in FIG. 8, including:

Step 201: Send transmission layer number information to the terminal, where the transmission layer number information indicates that the physical uplink shared channel repetition type PUSCH repetition Type B has a transmission layer number greater than 1 or equal to 1.

In some embodiments, the method includes at least one of the following:

If the nominal repeated transmission is divided into multiple actual repeated transmissions, the transmission layer number information indicates that the number of transmission layers of the nominal repeated transmission is equal to 1;

If the nominal repeated transmission is not divided into multiple actual repeated transmissions, the transmission layer number information indicates that the number of transmission layers of the nominal repeated transmission is equal to or greater than 1.

In this embodiment, when the terminal is configured with PUSCH repetition Type B, the value of the number of transmissions K of nominal repeated transmission is designated as 1, and the nominal repeated transmission is divided into multiple actual repeated transmissions, for the network side device, no The number of transmission layers of the transmission can be configured or specified to be greater than 1, or the number of transmission layers of the transmission can be configured or specified to be greater than 1.

In some embodiments, the method includes at least one of the following:

For dynamically scheduled uplink transmission, the number of transmission layers information indicates that the number of transmission layers of PUSCH repetition Type B is equal to 1;

For unlicensed uplink transmission, the transmission layer number information indicates that the transmission layer number of PUSCH repetition Type B is equal to or greater than 1.

That is, when the number of transmission layers that can be configured or specified for the transmission is greater than 1, for dynamically scheduled uplink transmissions, the transmission layer number of the transmission cannot be configured or specified to be greater than 1; for unlicensed uplink transmissions, the transmission can be configured or specified. The number of transmission layers is greater than 1.

In some embodiments, the method includes at least one of the following:

For the second transmission of the unlicensed uplink transmission types Type 1 and Type 2, the number of transmission layers information indicates that the number of transmission layers is greater than or equal to 1, and the second transmission is except for the first transmission after activation Other subsequent periodic transmissions;

For the first transmission after activation of the unlicensed uplink transmission Type 2, the number of transmission layers information indicates that the number of transmission layers is equal to 1.

That is, for unlicensed uplink transmission, you can configure or specify the number of transmission layers for the transmission to be greater than 1, and for the second transmission of Type 1 and Type 2 for unlicensed uplink transmission, you can configure or specify the number of transmission layers for the transmission to be greater than 1. ; For the first transmission after activation of the unlicensed uplink transmission Type 2, it is not possible to configure or specify the number of transmission layers to be greater than 1.

In some embodiments, the terminal is configured with PUSCH repetition Type B. If the value of the number of nominal repeated transmissions K is set or specified to be greater than 1, or the actual number of repeated transmissions is greater than 1, the transmission layer number information indicates PUSCH repetition Type The number of transmission layers of B is equal to 1, that is, the number of transmission layers of PUSCH repetition Type B is limited to 1.

The technical solution of the present invention will be further introduced below in conjunction with the drawings and specific embodiments:

Example one:

In this embodiment, as shown in Figure 9, the terminal is configured with PUSCH repetition Type B, and the value of the number of nominal repetition transmissions K is designated as 1. For TB1 (Type B1), 1 nominal repetition transmission is divided into Two actual repeated transmissions: actual repetition 1.1 and actual repetition 1.2, the network side device cannot configure or specify the number of transmission layers of TB1 to be greater than 1; for TB2, there is no division for one nominal repeated transmission, and the network side device can configure or specify TB2 The number of transmission layers is greater than 1.

Embodiment two:

In this embodiment, as shown in FIG. 10, the terminal is configured with PUSCH repetition Type B, the value of the number of transmissions K of nominal repetitive transmission is designated as 1, and the number of transmission layers is designated as greater than 1. For TB1, 1 nominal repeated transmission is divided into two actual repeated transmissions: actual repetition 1.1 and actual repetition 1.2, the terminal does not transmit the two actual repeated transmissions; for TB2, 1 nominal repeated transmission is not divided, the terminal TB2 can be transmitted as instructed, and the number of transmission layers is greater than 1.

As shown in FIG. 11, the terminal 300 of the embodiment of the present invention includes a device for determining the number of data transmission layers, which can implement the method for determining the number of data transmission layers applied to the terminal in the above embodiment, and achieve the same effect. The terminal 300 Including the following functional modules:

The obtaining module 310 is configured to obtain configuration information of the terminal, the configuration information includes: physical uplink shared channel repetition type PUSCH repetition Type B, the value of the number of transmission times K of nominal repetitive transmission is 1, and the nominal repetitive transmission is divided into multiple actual Repeated transmission

The receiving module 320 is configured to receive information about the number of transmission layers of the network side device, where the information about the number of transmission layers indicates that the number of transmission layers of PUSCH repetition Type B is greater than one;

The processing module 330 is configured to perform any one of the following operations:

Abandon the multiple transmissions that are actually repeated transmissions;

In some embodiments, the processing module 330 is further configured to use the number of transmission layers of the nominal repeated transmission to transmit the multiple actual repeated transmissions.

In some embodiments, the processing module 330 is further configured to perform any one of the following:

For dynamically scheduled uplink transmission, use the number of transmission layers of the nominal repeated transmission to transmit the multiple actual repeated transmissions;

For unlicensed uplink transmissions, multiple actual repeated transmissions are abandoned.

In related technologies, if the number of transmission layers configured or designated by the base station for PUSCH repetition Type B is greater than 1, reliable data transmission cannot be guaranteed. In addition, when the value of the number of transmissions K of the nominal repeated transmission is set or designated as 1, the terminal can transmit data transmission greater than layer 1 according to the instruction of the base station, but the nominal transmission is invalid due to the uplink transmission resource crossing the boundary of the time slot. The resources (such as downlink symbols) will be divided into multiple actual repeated transmissions, which will cause the terminal to be unable to determine whether to transmit multiple actual repetitions; if transmission is to be performed, the terminal cannot determine the number of uplink transmission layers.

In this embodiment, the behavior of the terminal when a nominal repeated transmission is divided into multiple actual repeated transmissions is clarified. If the terminal can transmit and the number of transmission layers is clarified, then the loss of data transmission can be reduced; if the terminal cannot transmit, then the restriction on the base station configuration can be reduced and the power of the terminal can be saved.

In order to better achieve the above objectives, further, FIG. 13 is a schematic diagram of the hardware structure of a terminal for implementing various embodiments of the present invention. The terminal 40 includes but is not limited to: a radio frequency unit 41, a network module 42, an audio output unit 43, The input unit 44, the sensor 45, the display unit 46, the user input unit 47, the interface unit 48, the memory 49, the processor 410, and the power supply 411 and other components. Those skilled in the art can understand that the terminal structure shown in FIG. 13 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine some components, or arrange different components. In the embodiment of the present invention, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

The processor 410 receives the transmission layer number information of the network side device through the radio frequency unit 41, where the transmission layer number information indicates that the transmission layer number of PUSCH repetition Type B is greater than 1, and performs any one of the following operations: abandon the multiple Transmission of actual repetitive transmission; determining that the number of transmission layers of PUSCH repetition Type B is equal to the number of transmission layers of nominal repetitive transmission.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 41 can be used for receiving and sending signals in the process of sending and receiving information or talking. Specifically, after receiving the downlink data from the base station, it is processed by the processor 410; Uplink data is sent to the base station. Generally, the radio frequency unit 41 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 41 can also communicate with the network and other devices through a wireless communication system.

The terminal provides users with wireless broadband Internet access through the network module 42, such as helping users to send and receive emails, browse web pages, and access streaming media.

The audio output unit 43 may convert the audio data received by the radio frequency unit 41 or the network module 42 or stored in the memory 49 into an audio signal and output it as sound. Moreover, the audio output unit 43 may also provide audio output related to a specific function performed by the terminal 40 (for example, call signal reception sound, message reception sound, etc.). The audio output unit 43 includes a speaker, a buzzer, a receiver, and the like.

The input unit 44 is used to receive audio or video signals. The input unit 44 may include a graphics processing unit (GPU) 441 and a microphone 442, and the graphics processor 441 is configured to respond to still pictures or video images obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. Data is processed. The processed image frame may be displayed on the display unit 46. The image frame processed by the graphics processor 441 may be stored in the memory 49 (or other storage medium) or sent via the radio frequency unit 41 or the network module 42. The microphone 442 can receive sound, and can process such sound into audio data. The processed audio data can be converted into a format that can be sent to the mobile communication base station via the radio frequency unit 41 for output in the case of a telephone conversation mode.

The terminal 40 also includes at least one sensor 45, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor. The ambient light sensor can adjust the brightness of the display panel 461 according to the brightness of the ambient light. The proximity sensor can close the display panel 461 and/or when the terminal 40 is moved to the ear. Or backlight. As a kind of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in various directions (usually three-axis), and can detect the magnitude and direction of gravity when stationary, and can be used to identify terminal gestures (such as horizontal and vertical screen switching, related games, Magnetometer attitude calibration), vibration recognition related functions (such as pedometer, percussion), etc.; sensors 45 can also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared rays Sensors, etc., will not be repeated here.

The display unit 46 is used to display information input by the user or information provided to the user. The display unit 46 may include a display panel 461, and the display panel 461 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), etc.

The user input unit 47 may be used to receive inputted number or character information, and generate key signal input related to user settings and function control of the terminal. Specifically, the user input unit 47 includes a touch panel 471 and other input devices 472. The touch panel 471, also called a touch screen, can collect user touch operations on or near it (for example, the user uses any suitable objects or accessories such as fingers, stylus, etc.) on the touch panel 471 or near the touch panel 471. operate). The touch panel 471 may include two parts, a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch position, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it To the processor 410, the command sent by the processor 410 is received and executed. In addition, the touch panel 471 can be implemented in multiple types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 471, the user input unit 47 may also include other input devices 472. Specifically, other input devices 472 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackball, mouse, and joystick, which will not be repeated here.

Further, the touch panel 471 can cover the display panel 461. When the touch panel 471 detects a touch operation on or near it, it transmits it to the processor 410 to determine the type of the touch event, and then the processor 410 responds to the touch The type of event provides corresponding visual output on the display panel 461. Although in FIG. 13, the touch panel 471 and the display panel 461 are used as two independent components to realize the input and output functions of the terminal, in some embodiments, the touch panel 471 and the display panel 461 may be integrated. Realize the input and output functions of the terminal, the specifics are not limited here.

The interface unit 48 is an interface for connecting an external device to the terminal 40. For example, the external device may include a wired or wireless headset port, an external power source (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input/output (I/O) port, video I/O port, headphone port, etc. The interface unit 48 may be used to receive input (for example, data information, power, etc.) from an external device and transmit the received input to one or more elements in the terminal 40 or may be used to communicate between the terminal 40 and the external device. Transfer data between.

The memory 49 can be used to store software programs and various data. The memory 49 may mainly include a program storage area and a data storage area. The program storage area may store an operating system, an application program required by at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data created by the use of mobile phones (such as audio data, phone book, etc.), etc. In addition, the memory 49 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.

The processor 410 is the control center of the terminal. It uses various interfaces and lines to connect various parts of the entire terminal. Various functions of the terminal and processing data, so as to monitor the terminal as a whole. The processor 410 may include one or more processing units; preferably, the processor 410 may integrate an application processor and a modem processor, where the application processor mainly processes the operating system, user interface, application programs, etc., and the modem The processor mainly deals with wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 410.

The terminal 40 may also include a power source 411 (such as a battery) for supplying power to various components. Preferably, the power source 411 may be logically connected to the processor 410 through a power management system, so as to manage charging, discharging, and power consumption management through the power management system. Function.

In addition, the terminal 40 includes some functional modules not shown, which will not be repeated here.

An embodiment of the present invention also provides a communication device, including a processor 410, a memory 49, and a computer program stored on the memory 49 and running on the processor 410. The computer program is executed by the processor 410 to realize the above determination. Each process of the method embodiment of the number of data transmission layers can achieve the same technical effect. In order to avoid repetition, details are not repeated here.

The aforementioned communication device may be a terminal, which may be a device that provides voice and/or other service data connectivity to the user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem. A wireless terminal can communicate with one or more core networks via a radio access network (RAN). The wireless terminal can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal For example, they can be portable, pocket-sized, handheld, computer-built or vehicle-mounted mobile devices that exchange language and/or data with the wireless access network. For example, personal communication service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, and personal digital assistants (Personal Digital Assistant, PDA) and other equipment. Wireless terminals can also be called systems, subscriber units (Subscriber Unit), subscriber stations (Subscriber Station), mobile stations (Mobile Station), mobile stations (Mobile), remote stations (Remote Station), remote terminals (Remote Terminal), The access terminal (Access Terminal), user terminal (User Terminal), user agent (User Agent), and user equipment (User Device or User Equipment) are not limited here.

The embodiment of the present invention also provides a computer-readable storage medium on which a program is stored, and when the program is executed by a processor, each process of the method embodiment for determining the number of data transmission layers on the terminal side is realized, and To achieve the same technical effect, in order to avoid repetition, I will not repeat them here. Wherein, the computer-readable storage medium, such as read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk, or optical disk, etc.

As shown in FIG. 12, the network side device 301 of the embodiment of the present invention includes a device for determining the number of data transmission layers, which can implement the method for determining the number of data transmission layers applied to the network side device in the above embodiment, and achieve the same effect , The network side device 301 includes the following functional modules:

The sending module 340 is configured to send transmission layer number information to the terminal, where the transmission layer number information indicates that the physical uplink shared channel repetition type PUSCH repetition Type B has a transmission layer number greater than 1 or equal to 1.

In order to better achieve the foregoing objectives, embodiments of the present invention also provide a network-side device. The network-side device includes a processor, a memory, and a computer program that is stored in the memory and can run on the processor. The processor executes The computer program implements the steps in the method for determining the number of data transmission layers as described above, and can achieve the same technical effect. In order to avoid repetition, details are not repeated here.

Specifically, the embodiment of the present invention also provides a network side device. As shown in FIG. 14, the network side equipment 500 includes: an antenna 51, a radio frequency device 52, and a baseband device 53. The antenna 51 is connected to the radio frequency device 52. In the upstream direction, the radio frequency device 52 receives information through the antenna 51 and sends the received information to the baseband device 53 for processing. In the downlink direction, the baseband device 53 processes the information to be sent and sends it to the radio frequency device 52, and the radio frequency device 52 processes the received information and sends it out via the antenna 51.

The foregoing frequency band processing device may be located in the baseband device 53, and the method executed by the network-side device in the above embodiment may be implemented in the baseband device 53. The baseband device 53 includes a processor 54 and a memory 55.

The baseband device 53 may include, for example, at least one baseband board, and multiple chips are arranged on the baseband board, as shown in FIG. The network side device shown in the above method embodiment operates.

The baseband device 53 may also include a network interface 56 for exchanging information with the radio frequency device 52, and the interface is, for example, a common public radio interface (CPRI).

The processor here can be a processor or a collective term for multiple processing elements. For example, the processor can be a CPU or an ASIC, or it can be configured to implement one or the other of the methods executed by the network side device above. Multiple integrated circuits, such as: one or more microprocessors DSP, or, one or more field programmable gate array FPGAs, etc. The storage element can be a memory or a collective term for multiple storage elements.

The memory 55 may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (Read-OnlyMemory, ROM), programmable read-only memory (ProgrammableROM, PROM), erasable programmable read-only memory (ErasablePROM, EPROM), electrically erasable Programming read-only memory (Electrically EPROM, EEPROM) or flash memory. The volatile memory may be random access memory (Random Access Memory, RAM), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (StaticRAM, SRAM), dynamic random access memory (DynamicRAM, DRAM), synchronous dynamic random access memory (SynchronousDRAM, SDRAM), Double data rate synchronous dynamic random access memory (DoubleDataRateSDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (EnhancedSDRAM, ESDRAM), synchronous connection dynamic random access memory (SynchlinkDRAM, SLDRAM) and direct memory bus random access memory (DirectRambusRAM, DRRAM). The memory 55 described in this application is intended to include, but is not limited to, these and any other suitable types of memory.

Specifically, the network side device of the embodiment of the present invention further includes: a computer program stored in the memory 55 and capable of running on the processor 54, and the processor 54 calls the computer program in the memory 55 to execute the operations performed by each module shown in FIG. method.

The embodiment of the present invention also provides a computer-readable storage medium with a program stored on the computer-readable storage medium, and when the program is executed by a processor, the method for determining the number of data transmission layers applied to a network side device as described above is implemented The steps can achieve the same technical effect. To avoid repetition, I won’t repeat them here.

A person of ordinary skill in the art may realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered as going beyond the scope of the present invention.

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

In the embodiments provided in this application, it should be understood that the disclosed device and method may be implemented in other ways. For example, the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

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

If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of the present invention essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network-side device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage media include: U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk and other media that can store program codes.

In addition, it should be pointed out that in the device and method of the present invention, obviously, each component or each step can be decomposed and/or recombined. These decomposition and/or recombination should be regarded as equivalent solutions of the present invention. In addition, the steps of performing the above series of processing can naturally be performed in a chronological order in the order of description, but do not necessarily need to be performed in a chronological order, and some steps can be performed in parallel or independently of each other. A person of ordinary skill in the art can understand that all or any of the steps or components of the method and device of the present invention can be used in any computing device (including a processor, storage medium, etc.) or a network of computing devices with hardware and firmware. , Software, or a combination of them, this can be achieved by those of ordinary skill in the art using their basic programming skills after reading the description of the present invention.

Therefore, the purpose of the present invention can also be achieved by running a program or a group of programs on any computing device. The computing device may be a well-known general-purpose device. Therefore, the purpose of the present invention can also be achieved only by providing a program product containing program code for realizing the method or device. In other words, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. Obviously, the storage medium may be any well-known storage medium or any storage medium developed in the future. It should also be pointed out that in the device and method of the present invention, obviously, each component or each step can be decomposed and/or recombined. These decomposition and/or recombination should be regarded as equivalent solutions of the present invention. In addition, the steps of executing the above-mentioned series of processing can naturally be executed in chronological order in the order of description, but they do not necessarily need to be executed in chronological order. Some steps can be performed in parallel or independently of each other.

It should be noted that it should be understood that the division of the various modules of the above device is only a division of logical functions, and may be fully or partially integrated into a physical entity in actual implementation, or may be physically separated. These modules can all be implemented in the form of software called by processing elements; they can also be implemented in the form of hardware; some modules can be implemented in the form of calling software by processing elements, and some of the modules can be implemented in the form of hardware. For example, the acquisition module can be a separate processing element, or it can be integrated into a certain chip of the above-mentioned device for implementation. In addition, it can also be stored in the memory of the above-mentioned device in the form of program code, which is determined by a certain processing element of the above-mentioned device. Call and execute the functions of the above acquisition module. The implementation of other modules is similar. In addition, all or part of these modules can be integrated together or implemented independently. The processing element described here may be an integrated circuit with signal processing capability. In the implementation process, each step of the above method or each of the above modules can be completed by an integrated logic circuit of hardware in the processor element or instructions in the form of software.

For example, each module, unit, sub-unit or sub-module may be one or more integrated circuits configured to implement the above method, for example: one or more application specific integrated circuits (ASIC), or one or Multiple microprocessors (digital signal processor, DSP), or one or more field programmable gate arrays (Field Programmable Gate Array, FPGA), etc. For another example, when one of the above modules is implemented in the form of processing element scheduling program code, the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processors that can call program codes. For another example, these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).

The use of "and/or" in the description and claims of this application means at least one of the connected objects. For example, "A and/or B" means "A alone, B alone, and both A and B are present". "At least one of A and B" also means "A alone, B alone, and A and B There are three situations in B.

The above are the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, a number of improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications are also included in the present invention. Within the scope of protection of the invention.

Claims

A method for determining the number of data transmission layers is applied to a terminal, wherein the method includes:

Acquire configuration information of the terminal, where the configuration information includes: physical uplink shared channel repetition Type B, the value of the number of transmission times K of the nominal repeated transmission is 1, and the nominal repeated transmission is divided into multiple actual repeated transmissions;

Receiving information about the number of transmission layers of the network side device, where the information about the number of transmission layers indicates that the number of transmission layers of PUSCH repetition Type B is greater than one;

The terminal performs any one of the following operations:

Abandon the multiple transmissions that are actually repeated transmissions;

It is determined that the number of transmission layers of PUSCH repetition Type B is equal to the number of transmission layers of the nominal repetitive transmission.
The method for determining the number of data transmission layers according to claim 1, wherein after the number of transmission layers for determining PUSCH repetition Type B is equal to the number of transmission layers for nominal repeated transmission, the method further comprises:

The plurality of actual repeated transmissions are transmitted using the number of transmission layers of the nominal repeated transmission.
The method for determining the number of data transmission layers according to claim 2, wherein the method comprises any one of the following:

For dynamically scheduled uplink transmission, the terminal uses the number of transmission layers of the nominal repeated transmission to transmit the multiple actual repeated transmissions;

For unlicensed uplink transmission, the terminal abandons multiple transmissions that are actually repeated transmissions.
A method for determining the number of data transmission layers is applied to a network side device, wherein the method includes:

The transmission layer number information is sent to the terminal, where the transmission layer number information indicates that the physical uplink shared channel repetition type PUSCH repetition Type B has a transmission layer number greater than 1 or equal to 1.
The method for determining the number of data transmission layers according to claim 4, wherein the method comprises at least one of the following:

If the nominal repeated transmission is divided into multiple actual repeated transmissions, the transmission layer number information indicates that the number of transmission layers of the nominal repeated transmission is equal to 1;

If the nominal repeated transmission is not divided into multiple actual repeated transmissions, the transmission layer number information indicates that the number of transmission layers of the nominal repeated transmission is equal to or greater than 1.
The method for determining the number of data transmission layers according to claim 4, wherein the method comprises at least one of the following:

For dynamically scheduled uplink transmission, the number of transmission layers information indicates that the number of transmission layers of PUSCH repetition Type B is equal to 1;

For unlicensed uplink transmission, the transmission layer number information indicates that the transmission layer number of PUSCH repetition Type B is equal to or greater than 1.
The method for determining the number of data transmission layers according to claim 6, wherein the method comprises at least one of the following:

For the second transmission of unlicensed uplink transmission types Type 1 and Type 2, the number of transmission layers information indicates that the number of transmission layers is greater than or equal to 1, and the second transmission is except for the first transmission after activation Other subsequent periodic transmissions;

For the first transmission after activation of the unlicensed uplink transmission Type 2, the number of transmission layers information indicates that the number of transmission layers is equal to 1.
The method for determining the number of data transmission layers according to claim 4, wherein if the value of the number of transmission times K of nominal repeated transmission is set or specified to be greater than 1, or the number of actual repeated transmissions is greater than 1, the transmission layer number information indicates The number of transmission layers of PUSCH repetition Type B is equal to 1.
A device for determining the number of data transmission layers is applied to a terminal, wherein the device includes:

The obtaining module is used to obtain configuration information of the terminal, the configuration information includes: physical uplink shared channel repetition type PUSCH repetition Type B, the value of the number of transmissions K of nominal repetitive transmission is 1, and the nominal repetitive transmission is divided into multiple actual repetitions transmission;

The receiving module is configured to receive information about the number of transmission layers of the network side device, where the information about the number of transmission layers indicates that the number of transmission layers of PUSCH repetition Type B is greater than one;

Processing module, used to perform any of the following operations:

Abandon the multiple transmissions that are actually repeated transmissions;

It is determined that the number of transmission layers of PUSCH repetition Type B is equal to the number of transmission layers of the nominal repetitive transmission.
The device for determining the number of data transmission layers according to claim 9, wherein the processing module is further configured to use the number of transmission layers of the nominal repeated transmission to transmit the plurality of actual repeated transmissions.
The device for determining the number of data transmission layers according to claim 9, wherein the processing module is further configured to perform any one of the following:

For dynamically scheduled uplink transmission, use the number of transmission layers of the nominal repeated transmission to transmit the multiple actual repeated transmissions;

For unlicensed uplink transmissions, multiple actual repeated transmissions are abandoned.
A device for determining the number of data transmission layers, applied to network side equipment, includes:

The sending module is configured to send transmission layer number information to the terminal, where the transmission layer number information indicates that the physical uplink shared channel repetition type PUSCH repetition Type B has a transmission layer number greater than 1 or equal to 1.
A communication device comprising a processor, a memory, and a program stored on the memory and running on the processor, wherein the processor executes the program as described in any one of claims 1 to 8. The steps of the method for determining the number of data transmission layers.
A computer-readable storage medium, wherein a program is stored on the computer-readable storage medium, and when the program is executed by a processor, the method for determining the number of data transmission layers according to any one of claims 1 to 8 is realized. Method steps.
A chip comprising a processor and a communication interface, wherein the communication interface is coupled with the processor, and the processor is used to run a program to implement the deterministic data transmission layer according to any one of claims 1 to 8. Count the steps of the method.
A computer program product, wherein the program product is stored in a non-volatile storage medium, and the program product is executed by at least one processor to realize the determined data according to any one of claims 1 to 8 The steps of the method of transporting the number of layers.
A communication device configured to perform the steps of the method for determining the number of data transmission layers according to any one of claims 1 to 8.