CN113543158A

CN113543158A - Method and device for determining data transmission layer number and communication equipment

Info

Publication number: CN113543158A
Application number: CN202010291848.XA
Authority: CN
Inventors: 李娜
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-04-14
Filing date: 2020-04-14
Publication date: 2021-10-22
Anticipated expiration: 2040-04-14
Also published as: CN113543158B; WO2021208938A1

Abstract

The embodiment of the invention discloses a method and a device for determining the number of data transmission layers and communication equipment, and belongs to the technical field of communication. The method for determining the number of data transmission layers is applied to a terminal and comprises the following steps: receiving transmission layer number information of network side equipment, wherein the transmission layer number information indicates that the transmission layer number of a PUSCH repetition Type B is more than 1; the terminal executes any one of the following operations: discarding transmission of the plurality of actual duplicate transmissions; determining that the number of transmission layers of PUSCH repeption Type B is equal to the number of transmission layers of the nominal repeat transmission. A method for determining the number of data transmission layers is applied to network side equipment and comprises the following steps: and transmitting transmission layer number information to the terminal, wherein the transmission layer number information indicates that the transmission layer number of the PUSCH retransmission Type B is more than 1 or equal to 1. The technical scheme of the invention defines the behavior of the terminal when a nominal repeated transmission is divided into a plurality of actual repeated transmissions.

Description

Method and device for determining data transmission layer number and communication equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for determining a number of data transmission layers, and a communication device.

Background

In the related communication protocol, the retransmission (retransmission) is based on slots (slots), K repeated transmissions need to occupy K slots, and the time resources (initial positions of transmissions) occupied by data transmission in each slot are the same. If the number of times of the repeated transmission is more than 1, the data can be transmitted only by using a 1-layer (single-layer). The mechanism of the repeated transmission may be applied to 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 repeated transmission based on sub-slots (sub-slot mini-slot X symbol(s) where X ═ 1), and K nominal repeated transmissions (nominal retransmission) can perform continuous transmission "back to back" in one slot. When a nominal transmission time domain resource crosses a slot boundary or an invalid and unavailable resource or symbol exists in the time domain resource, such as a downlink symbol, the nominal transmission is divided into a plurality of actual retransmission (actual retransmission) by the slot boundary or the invalid resource or symbol, and the mechanism of the retransmission is called PUSCH retransmission Type B, that is, physical uplink shared channel repetition Type B.

In the related communication protocol, when the value of the repeated transmission times K is set or specified to be more than 1, the transmission layer number of the PUSCH retransmission Type A is 1 layer. For the PUSCH retransmission Type B, when the value of the number of transmission times K of the nominal repetition transmission is set or specified to be greater than 1, there has been no provision to limit the number of transmission layers of the PUSCH retransmission Type B to 1 layer.

Disclosure of Invention

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

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

acquiring configuration information of a terminal, wherein the configuration information comprises: the physical uplink shared channel repeat Type PUSCH repeat Type B is characterized in that the value of the transmission times K of the nominal repeat transmission is 1, and the nominal repeat transmission is divided into a plurality of actual repeat transmissions;

receiving transmission layer number information of network side equipment, wherein the transmission layer number information indicates that the transmission layer number of a PUSCH repetition Type B is more than 1;

the terminal executes any one of the following operations:

discarding transmission of the plurality of actual duplicate transmissions;

determining that the number of transmission layers of PUSCH repeption Type B is equal to the number of transmission layers of the nominal repeat transmission.

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

and transmitting transmission layer number information to a terminal, wherein the transmission layer number information indicates that the transmission layer number of a physical uplink shared channel repetition Type PUSCH repetition Type B is more than 1 or equal to 1.

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

an obtaining module, configured to obtain configuration information of a terminal, where the configuration information includes: the physical uplink shared channel repeat Type PUSCH repeat Type B is characterized in that the value of the transmission times K of the nominal repeat transmission is 1, and the nominal repeat transmission is divided into a plurality of actual repeat transmissions;

the terminal comprises a receiving module, a transmission module and a transmission module, wherein the receiving module is used for receiving the transmission layer number information of network side equipment, and the transmission layer number information indicates that the transmission layer number of the PUSCH repetition Type B is more than 1;

a processing module to perform any of the following operations:

discarding transmission of the plurality of actual duplicate transmissions;

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

and the sending module is used for sending transmission layer number information to the terminal, wherein the transmission layer number information indicates that the transmission layer number of the physical uplink shared channel repetition Type PUSCH repetition Type B is more than 1 or equal to 1.

In a fifth aspect, an embodiment of the present invention further provides a communication device, where the communication device includes a processor, a memory, and a computer program stored in the memory and running on the processor, and the processor, when executing the computer 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, where a program is stored, and the program, when executed by a processor, implements the steps of the method for determining the number of data transmission layers as described above.

In the above scheme, the behavior of the terminal when a nominal repeat transmission is split into multiple actual repeat transmissions is clarified. If the terminal can transmit and the number of transmission layers is clear, the loss of data transmission can be reduced; if the terminal can not transmit, the limitation on the configuration of the base station can be reduced, and the power of the terminal can be saved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 shows a block diagram of a mobile communication system to which an embodiment of the present invention is applicable;

fig. 2 shows a schematic diagram of PUSCH repetition Type a;

fig. 3 shows a schematic diagram of PUSCH repetition Type B;

FIG. 4 is a diagram illustrating dynamically scheduled uplink transmissions;

FIG. 5 is a diagram illustrating unlicensed uplink transmission of Type 1;

FIG. 6 is a diagram illustrating unlicensed uplink transmission of Type 2;

fig. 7 is a flowchart illustrating a method for determining the number of data transmission layers of a terminal according to an embodiment of the present invention;

fig. 8 is a flowchart illustrating 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 is a schematic diagram illustrating behavior of a network-side device according to an embodiment of the present invention;

FIG. 10 is a diagram illustrating behavior of a terminal according to an embodiment of the present invention;

fig. 11 is a schematic block diagram of a terminal according to an embodiment of the present invention;

fig. 12 is a schematic block diagram of a network device according to an embodiment of the present invention;

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

fig. 14 is a block diagram of a network device according to an embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

The terms "comprises," "comprising," and "having," and any variations thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. In the description and in the claims "and/or" means at least one of the connected objects.

The techniques described herein are not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, and may also be used for various wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably. CDMA systems may implement Radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA), and so on. UTRA includes Wideband CDMA (Wideband Code Division Multiple Access, WCDMA) and other CDMA variants. TDMA systems may implement radio technologies such as Global System for Mobile communications (GSM). The OFDMA system may implement radio technologies such as Ultra Mobile Broadband (UMB), evolved-UTRA (E-UTRA), IEEE 802.11(Wi-Fi), IEEE 802.16(WiMAX), IEEE 802.20, Flash-OFDM, etc. UTRA and E-UTRA are parts of the Universal Mobile Telecommunications System (UMTS). LTE and higher LTE (e.g., LTE-A) are new UMTS releases that use E-UTRA. UTRA, E-UTRA, UMTS, LTE-A, and GSM are described in documents from an organization named "third Generation Partnership Project" (3 GPP). CDMA2000 and UMB are described in documents from an organization named "third generation partnership project 2" (3GPP 2). The techniques described herein may be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes the NR system for purposes of example, and NR terminology is used in much of the description below, although the techniques may 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 in the function and arrangement of elements discussed without departing from the spirit and scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the described methods may be performed in an order different than 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.

Referring to fig. 1, fig. 1 is a block diagram of a wireless communication system to which an embodiment of the present invention is applicable. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 may also be referred to as a terminal Device or a User Equipment (UE), where the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a Wearable Device (Wearable Device), or a vehicle-mounted Device, and the specific type of the 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, wherein the Base Station may be a 5G or later-version Base Station (e.g., a gNB, a 5G NR NB, etc.), or a Base Station in other communication systems (e.g., an eNB, a WLAN access point, or other access points, etc.), or a location server (e.g., an E-SMLC or an lmf (location Manager function)), wherein the Base Station may be referred to as a node B, an evolved node B, an access point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, or some other suitable terminology in the field, as long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary, and it should be noted that, in the embodiment of the present 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 stations may communicate with the terminals 11 under the control of a base station controller, which may be part of the core network or some of the base stations in various examples. Some base stations may communicate control information or user data with the core network through a backhaul. In some examples, some of the base stations may communicate with each other, directly or indirectly, over backhaul links, which may be wired or wireless communication links. A wireless communication system may support operation on multiple carriers (waveform signals of different frequencies). A multi-carrier transmitter can transmit modulated signals on the multiple carriers simultaneously. For example, each communication link may be a multi-carrier signal modulated according to various radio technologies. Each modulated signal may be transmitted on a different carrier and may carry control information (e.g., reference signals, control channels, etc.), overhead information, data, and so on.

The base station may communicate wirelessly with the terminal 11 via one or more access point antennas. Each base station may provide communication coverage for a respective coverage area. The coverage area of an access point may be divided into sectors that form only a portion of the coverage area. A wireless communication system may include different types of base stations (e.g., macro, micro, or pico base stations). The base stations may also utilize different radio technologies, such as cellular or WLAN radio access technologies. The base stations may be associated with the same or different access networks or operator deployments. The coverage areas of different base stations (including coverage areas of base stations of the same or different types, coverage areas utilizing 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 fig. 2, the PUSCH retransmission Type a is slot-based, K slots need to be occupied by K repeated transmissions, and time resources (starting positions of transmissions) occupied by data transmission in each slot are the same. If the number of times of the repeated transmission is more than 1, the data can be transmitted only by using a 1-layer (single-layer).

In another communication protocol, as shown in fig. 3, the PUSCH retransmission Type B is based on sub-slots or called mini-slots or X symbols, where X > ═ 1, and K nominal retransmission (nominal retransmission) can be performed in one slot in a "back-to-back" continuous transmission. When a time domain resource of a nominal retransmission is to cross a slot boundary or an invalid and unavailable resource or symbol exists in the time domain resource, such as a downlink symbol, the nominal retransmission is divided into multiple actual retransmissions (actual retransmissions) by the slot or the invalid resource or symbol, as shown in fig. 3, the nominal retransmission 3 is divided into actual retransmissions 3.1 and actual retransmissions 3.2.

The uplink transmission scheme is classified into dynamic scheduling (dynamic scheduling) based uplink transmission and unlicensed scheduling (coordinated scheduling) based uplink transmission.

The uplink transmission with dynamic scheduling is characterized in that transmission parameters such as the number of transmission layers, a Modulation and Coding Scheme (MCS), and specific time frequency resources can be dynamically indicated, and the number of times K of repeated transmission can be dynamically or high-layer semi-statically configured, as shown in fig. 4, where UL grant scheduling is uplink grant scheduling, and time represents a time domain.

The unlicensed uplink transmission is divided into two subtypes, Type1 and Type2, which are Type1PUSCH transmission (transmissions) with a configured grant and Type 2PUSCH transmission with a configured grant. As shown in fig. 5, all transmission parameters of Type1PUSCH transmissions with a configured grant are configured by the higher layer semi-statically, and transmission resources thereof appear periodically; as shown in fig. 6, the Type 2PUSCH transmissions with a configured grant have transmission parameters configured and indicated by the higher layer and the physical layer. The high layer mainly configures a period of transmission resources in a semi-static manner, and the physical layer mainly indicates transmission parameters such as a Modulation and Coding Scheme (MCS), specific time-frequency resources, the number of transmission layers, and the like. In fig. 5 and 6, RRC is Radio Resource Control (Radio Resource Control).

In the related communication protocol, when the value of the number of repeated transmission times K is set or specified to be greater than 1 for the PUSCH repetition Type a, the main purpose is to achieve a lower coding rate to improve coverage or data reliability, and it is not necessary to support multi-layer transmission. Thus limiting the number of PUSCH retransmission Type a transmission layers to 1 layer. For the PUSCH retransmission Type B, when the value of the number of transmission times K of the nominal repetition transmission is set or specified to be greater than 1, the main purpose of achieving a lower coding rate to improve coverage or data reliability is not changed, but there is no provision to limit the number of transmission layers of the PUSCH retransmission Type B to 1 layer.

An embodiment of the present invention provides a method for determining a number of data transmission layers, which is applied to a terminal, and as shown in fig. 7, the method includes:

step 101: acquiring configuration information of a terminal, wherein the configuration information comprises: the physical uplink shared channel repeat Type PUSCH repeat Type B is characterized in that the value of the transmission times K of the nominal repeat transmission is 1, and the nominal repeat transmission is divided into a plurality of actual repeat transmissions;

step 102: receiving transmission layer number information of network side equipment, wherein the transmission layer number information indicates that the transmission layer number of a PUSCH repetition Type B is more than 1;

step 103: the terminal executes any one of the following operations:

discarding transmission of the plurality of actual duplicate transmissions;

The terminal can be configured, preconfigured and/or agreed by a network side device to be a PUSCH retransmission Type B, the value of the transmission times K of nominal retransmission of the terminal can be configured to be 1 by the network side device, the time domain resource of the nominal retransmission spans the boundary of a slot or an invalid or unavailable resource or symbol exists in the time domain resource, and the nominal retransmission is divided into a plurality of actual retransmission by the slot or the invalid resource or symbol.

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

transmitting the plurality of actual duplicate transmissions using the number of transmission layers for the nominal duplicate transmission.

In this embodiment, the behavior of the terminal when a nominal retransmission is split into multiple actual retransmissions is clarified. If the terminal can transmit and the number of transmission layers is clear, the loss of data transmission can be reduced; if the terminal can not transmit, the limitation on the configuration of the base station can be reduced, and the power of the terminal is saved; therefore, the defects that when the value of the transmission times K of the nominal repeated transmission is 1, the nominal repeated transmission is divided into a plurality of actual repeated transmissions due to the fact that uplink transmission resources cross the boundary of a time slot or invalid resources (such as downlink symbols) exist, a terminal cannot determine whether to transmit a plurality of actual transmissions, and if the transmission is carried out, the number of uplink transmission layers cannot be determined are overcome.

In some embodiments, the method comprises any one of:

for dynamically scheduled uplink transmission, the terminal transmits the plurality of actual repeated transmissions using the number of transmission layers of the nominal repeated transmission;

for an unlicensed uplink transmission, the terminal relinquishes multiple actual repeatedly transmitted transmissions.

Whether and how the terminal transmits the multiple actual repititions depends on the terminal implementation, and for the dynamically scheduled uplink transmission, the terminal can transmit the multiple actual repititions, and the number of transmission layers of the actual repititions is equal to the number of transmission layers originally configured for the nominal repitition by the network side equipment; for unlicensed uplink transmission, the terminal abandons the transmission of multiple actual retransmissions and does not transmit.

An embodiment of the present invention provides a method for determining a number of data transmission layers, which is applied to a network device, and as shown in fig. 8, the method includes:

step 201: and transmitting transmission layer number information to a terminal, wherein the transmission layer number information indicates that the transmission layer number of a physical uplink shared channel repetition Type PUSCH repetition Type B is more than 1 or equal to 1.

In some embodiments, the method comprises at least one of:

if the nominal retransmission is divided into a plurality of actual retransmissions, the transmission layer number information indicates that the number of transmission layers of the nominal retransmission is equal to 1;

the transmission layer number information indicates that the number of transmission layers of the nominal retransmission is equal to 1 or greater than 1 if the nominal retransmission is not divided into a plurality of actual retransmissions.

In this embodiment, when the terminal is configured with a PUSCH repetition Type B, the value of the number of transmission times K of the nominal repeat transmission is specified as 1, and the nominal repeat transmission is divided into a plurality of actual repeat transmissions, for the network side device, it may not be configured or specified that the number of transmission layers of the transmission is greater than 1, or it may be configured or specified that the number of transmission layers of the transmission is greater than 1.

In some embodiments, the method comprises at least one of:

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

and aiming at the unauthorized uplink transmission, the transmission layer number information indicates that the transmission layer number of the PUSCH retransmission Type B is equal to 1 or more than 1.

That is, when the number of transmission layers for which transmission can be configured or designated is greater than 1, for dynamically scheduled uplink transmission, the number of transmission layers for which transmission can be configured or designated is not greater than 1; for unlicensed uplink transmission, the number of transmission layers for the transmission may be configured or specified to be greater than 1.

In some embodiments, the method comprises at least one of:

for second transmission of the unlicensed uplink transmission types Type1 and Type2, the transmission layer number information indicates that the number of transmission layers is greater than or equal to 1, and the second transmission is other subsequent periodic transmission except for the first transmission after activation;

for the first transmission after activation of the unlicensed uplink transmission Type2, the number of transmission layers information indicates that the number of transmission layers is equal to 1.

That is, for the unlicensed uplink transmission, when the number of transmission layers for the transmission is configured or designated to be greater than 1, for the second transmission of the unlicensed

uplink transmission types

1 and 2, the number of transmission layers for the transmission may be configured or designated to be greater than 1; for the first transmission after activation of the unlicensed uplink transmission Type2, the number of transmission layers for the transmission may not be configured or specified to be greater than 1.

In some embodiments, the terminal is configured with a PUSCH retransmission Type B, and if the value of the number of transmission times K of the nominal retransmission is set or specified to be greater than 1, or the number of transmission times of the actual retransmission is greater than 1, the transmission layer number information indicates that the number of transmission layers of the PUSCH retransmission Type B is equal to 1, that is, the number of transmission layers of the PUSCH retransmission Type B is limited to 1 layer.

The technical scheme of the invention is further described by combining the drawings and specific embodiments:

the first embodiment is as follows:

in this embodiment, as shown in fig. 9, the terminal is configured with PUSCH repetition Type B, the value of the transmission number K of the nominal repetition transmission is designated as 1, and for TB1(Type B1), the nominal repetition transmission of 1 is divided into two actual repetition transmissions: actual repetition 1.1 and actual repetition 1.2, the network side device may not configure or specify that the number of transmission layers of TB1 is greater than 1; for TB2, nominal repeat transmission of 1 time has no partition, and the network side device may configure or specify that the number of transmission layers of TB2 is greater than 1.

Example two:

in the present embodiment, as shown in fig. 10, the terminal is configured with a PUSCH repetition Type B, the value of the number of transmission times K of the nominal repetition transmission is designated as 1 and the number of transmission layers is designated as greater than 1. For TB1, the nominal repeat transmission of 1 is split into two actual repeat transmissions: actual repetition 1.1 and actual repetition 1.2, the terminal does not transmit the two actual repeated transmissions; for TB2, the 1 st nominal repetition transmission is not split, the terminal may transmit TB2 as indicated, and the number of transmission layers is greater than 1.

As shown in fig. 11, a terminal 300 according to an embodiment of the present invention, which includes a device for determining a number of data transmission layers, can implement the method for determining the number of data transmission layers applied to the terminal in the foregoing embodiments, and achieve the same effect, where the terminal 300 includes the following functional modules:

an obtaining module 310, configured to obtain configuration information of a terminal, where the configuration information includes: the physical uplink shared channel repeat Type PUSCH repeat Type B is characterized in that the value of the transmission times K of the nominal repeat transmission is 1, and the nominal repeat transmission is divided into a plurality of actual repeat transmissions;

a receiving module 320, configured to receive information of the number of transmission layers of a network side device, where the information of the number of transmission layers indicates that the number of transmission layers of the PUSCH repetition Type B is greater than 1;

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

discarding transmission of the plurality of actual duplicate transmissions;

In some embodiments, the processing module 330 is further configured to transmit the plurality of actual duplicate transmissions using the number of transmission layers for the nominal duplicate transmission.

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

transmitting the plurality of actual repeated transmissions using the number of transmission layers of the nominal repeated transmission for dynamically scheduled uplink transmissions;

for an unlicensed uplink transmission, a plurality of actually repeatedly transmitted transmissions are abandoned.

In the related art, if the base station configures or specifies that the number of transmission layers of the PUSCH retransmission Type B is greater than 1, reliable transmission of data cannot be guaranteed. In addition, when the value of the transmission number K of the nominal retransmission is set or designated as 1, the terminal may transmit data transmission greater than layer 1 according to the instruction of the base station, but the nominal transmission may be divided into multiple actual retransmissions due to the fact that the uplink transmission resource crosses the boundary of the slot or there is an invalid resource (such as a downlink symbol), which may result in the terminal being unable to determine whether to transmit multiple actual retransmissions; the terminal cannot determine the number of uplink transmission layers if transmission is performed.

In this embodiment, the behavior of the terminal when a nominal retransmission is split into multiple actual retransmissions is clarified. If the terminal can transmit and the number of transmission layers is clear, the loss of data transmission can be reduced; if the terminal can not transmit, the limitation on the configuration of the base station can be reduced, and the power of the terminal can be saved.

To better achieve the above object, further, fig. 13 is a schematic diagram of a hardware structure of a terminal implementing various embodiments of the present invention, where the terminal 40 includes, but is not limited to: radio frequency unit 41, network module 42, audio output unit 43, input unit 44, sensor 45, display unit 46, user input unit 47, interface unit 48, memory 49, processor 410, and power supply 411. Those skilled in the art will appreciate that the terminal configuration shown in fig. 13 is not intended to be limiting, and that the terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of 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 palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

The processor 410 receives, by using the radio frequency unit 41, transmission layer number information of a network side device, where the transmission layer number information indicates that the number of transmission layers of the PUSCH repetition Type B is greater than 1; performing any one of the following operations: discarding transmission of the plurality of actual duplicate transmissions; determining that the number of transmission layers of PUSCH repeption Type B is equal to the number of transmission layers of the nominal repeat transmission.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 41 may be used for receiving and sending signals during a message sending and receiving process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 410; in addition, the uplink data is transmitted to the base station. In general, 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 a network and other devices through a wireless communication system.

The terminal provides wireless broadband internet access to the user via the network module 42, such as assisting the user in sending and receiving e-mails, browsing web pages, and accessing streaming media.

The audio output unit 43 may convert 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 as sound. Also, the audio output unit 43 may also provide audio output related to a specific function performed by the terminal 40 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 43 includes a speaker, a buzzer, a receiver, and the like.

The input unit 44 is for receiving an audio or video signal. The input Unit 44 may include a Graphics Processing Unit (GPU) 441 and a microphone 442, and the Graphics processor 441 processes image data of still pictures or videos obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 46. The image frames processed by the graphic processor 441 may be stored in the memory 49 (or other storage medium) or transmitted via the radio frequency unit 41 or the network module 42. The microphone 442 may receive sound and may be capable of processing such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 41 in case of the phone call mode.

The terminal 40 also includes at least one sensor 45, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the brightness of the display panel 461 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 461 and/or a backlight when the terminal 40 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 45 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.

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), or the like.

The user input unit 47 may be used to receive input numeric or character information and generate key signal inputs 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 referred to as a touch screen, may collect touch operations by a user (e.g., operations by a user on or near the touch panel 471 using a finger, a stylus, or any other suitable object or accessory). The touch panel 471 can include two parts, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 410, receives a command from the processor 410, and executes the command. In addition, the touch panel 471 can be implemented by various types, such as resistive, capacitive, infrared, and surface acoustic wave. The user input unit 47 may include other input devices 472 in addition to the touch panel 471. Specifically, the other input devices 472 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a track ball, a mouse, and a joystick, which are not described herein again.

Further, the touch panel 471 can be overlaid on the display panel 461, and when the touch panel 471 detects a touch operation on or near the touch panel 471, the touch panel transmits the touch operation to the processor 410 to determine the type of the touch event, and then the processor 410 provides a corresponding visual output on the display panel 461 according to the type of the touch event. Although the touch panel 471 and the display panel 461 are shown as two separate components in fig. 13, in some embodiments, the touch panel 471 and the display panel 461 may be integrated to implement the input and output functions of the terminal, and are not limited herein.

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 supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 48 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the terminal 40 or may be used to transmit data between the terminal 40 and external devices.

The memory 49 may be used to store software programs as well as various data. The memory 49 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 49 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 410 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in the memory 49 and calling data stored in the memory 49, thereby performing overall monitoring of the terminal. Processor 410 may include one or more processing units; preferably, the processor 410 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 410.

The terminal 40 may further include a power supply 411 (e.g., a battery) for supplying power to various components, and preferably, the power supply 411 may be logically connected to the processor 410 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system.

In addition, the terminal 40 includes some functional modules that are not shown, and are not described in detail herein.

The embodiment of the present invention further provides a communication device, which includes a processor 410, a memory 49, and a computer program stored in the memory 49 and capable of running on the processor 410, where the computer program, when executed by the processor 410, implements each process of the above-mentioned method for determining a data transmission layer number, and can achieve the same technical effect, and in order to avoid repetition, it is not described here again.

The communication device may be a terminal, and the terminal may be a device providing voice and/or other service data connectivity to a user, a handheld device having a wireless connection function, or another processing device connected to a wireless modem. Wireless terminals, which may be mobile terminals such as mobile telephones (or "cellular" telephones) and computers having mobile terminals, such as portable, pocket, hand-held, computer-included, or vehicle-mounted mobile devices, may communicate with one or more core networks via a Radio Access Network (RAN), which may exchange language and/or data with the RAN. Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). A wireless Terminal may also be referred to as a system, a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile), a Remote Station (Remote Station), a Remote Terminal (Remote Terminal), an Access Terminal (Access Terminal), a User Terminal (User Terminal), a User Agent (User Agent), and a User Device or User Equipment (User Equipment), which are not limited herein.

An embodiment of the present invention further provides a computer-readable storage medium, where a program is stored on the computer-readable storage medium, and when the program is executed by a processor, the program implements each process of the above-mentioned method for determining a number of data transmission layers on a terminal side, and can achieve the same technical effect, and in order to avoid repetition, the detailed description is omitted here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

As shown in fig. 12, a network side device 301 according to an embodiment of the present invention includes a device for determining the number of data transmission layers, and can implement the method for determining the number of data transmission layers applied to the network side device in the foregoing embodiments, and achieve the same effect, where the network side device 301 includes the following functional modules:

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

In order to better achieve the above object, an embodiment of the present invention further provides a network side device, where the network side device includes a processor, a memory, and a computer program stored in the memory and capable of running on the processor, and when the processor executes the computer program, the steps in the method for determining the number of data transmission layers described above are implemented, and the same technical effect can be achieved, and in order to avoid repetition, details are not described here again.

Specifically, the embodiment of the invention also provides a network side device. As shown in fig. 14, the network-side device 500 includes: antenna 51, radio frequency device 52, baseband device 53. The antenna 51 is connected to a radio frequency device 52. In the uplink direction, the rf device 52 receives information via the antenna 51 and sends the received information to the baseband device 53 for processing. In the downlink direction, the baseband device 53 processes information to be transmitted and transmits the information to the radio frequency device 52, and the radio frequency device 52 processes the received information and transmits the processed information through the antenna 51.

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

The baseband device 53 may include, for example, at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 14, where one of the chips, for example, the processor 54, is connected to the memory 55 to call up the program in the memory 55 to perform the network-side device operation shown in the above method embodiment.

The baseband device 53 may also include a network interface 56, such as a Common Public Radio Interface (CPRI), for exchanging information with the radio frequency device 52.

The processor may be a single processor or a combination of multiple processing elements, for example, the processor may be a CPU, an ASIC, or one or more integrated circuits configured to implement the method performed by the above network-side device, for example: one or more microprocessors DSP, or one or more field programmable gate arrays FPGA, or the like. The storage element may be a memory or a combination of a plurality of storage elements.

The memory 55 may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile memory may be a Read-only memory (ROM), a programmable Read-only memory (PROM), an erasable programmable Read-only memory (erasabprom, EPROM), an electrically erasable programmable Read-only memory (EEPROM), or a flash memory. The volatile memory may be a Random Access Memory (RAM) which functions as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static random access memory (staticiram, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (syncronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), enhanced synchronous dynamic random access memory (EnhancedSDRAM, ESDRAM), synchronous link dynamic random access memory (synchlink DRAM, SLDRAM), and direct memory bus random access memory (DRRAM). The memory 55 described herein is intended to comprise, without being 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 on the memory 55 and executable on the processor 54, the processor 54 calling the computer program in the memory 55 to execute the method performed by the modules shown in fig. 12.

An embodiment of the present invention further provides a computer-readable storage medium, where a program is stored on the computer-readable storage medium, and when the program is executed by a processor, the steps of the method for determining the number of data transmission layers applied to a network-side device as described above are implemented, and the same technical effects can be achieved, and are not described herein again to avoid repetition.

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

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

In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

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

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

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention or a part thereof, which essentially contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network side device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

Furthermore, it is to be noted that in the device and method of the invention, it is obvious that the individual components or steps can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of performing the series of processes described above may naturally be performed chronologically in the order described, but need not necessarily be performed chronologically, and some steps may be performed in parallel or independently of each other. It will be understood by those skilled in the art that all or any of the steps or elements of the method and apparatus of the present invention may be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or any combination thereof, which can be implemented by those skilled in the art using their basic programming skills after reading the description of the present invention.

Thus, the objects of the invention may also be achieved by running a program or a set of programs on any computing device. The computing device may be a general purpose device as is well known. The object of the invention is thus also achieved solely by providing a program product comprising program code for implementing the method or the apparatus. That is, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. It is to be understood that the storage medium may be any known storage medium or any storage medium developed in the future. It is further noted that in the apparatus and method of the present invention, it is apparent that each component or step can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of executing the series of processes described above may naturally be executed chronologically in the order described, but need not necessarily be executed chronologically. Some steps may be performed in parallel or independently of each other.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.

Claims

1. A method for determining the number of data transmission layers is applied to a terminal, and is characterized in that the method comprises the following steps:

the terminal executes any one of the following operations:

discarding transmission of the plurality of actual duplicate transmissions;

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

3. The method for determining the number of data transmission layers according to claim 2, wherein the method comprises any one of:

4. A method for determining the number of data transmission layers is applied to a network side device, and is characterized by comprising the following steps:

5. The method of determining the number of data transmission layers according to claim 4, wherein the method comprises at least one of:

6. The method of determining the number of data transmission layers according to claim 4, wherein the method comprises at least one of:

7. The method of determining the number of data transmission layers according to claim 6, wherein the method comprises at least one of:

8. The method of claim 4, wherein if the value of the number of transmission times K of the nominal retransmission is set or specified to be greater than 1, or the number of transmission times of the actual retransmission is greater than 1, the transmission layer number information indicates that the number of transmission layers of the PUSCH retransmission Type B is equal to 1.

9. An apparatus for determining the number of data transmission layers, applied to a terminal, the apparatus comprising:

a processing module to perform any of the following operations:

discarding transmission of the plurality of actual duplicate transmissions;

10. The apparatus of claim 9, wherein the processing module is further configured to transmit the plurality of actual duplicate transmissions using the number of transmission layers for the nominal duplicate transmission.

11. The apparatus of claim 9, wherein the processing module is further configured to perform any one of the following:

12. An apparatus for determining the number of data transmission layers, applied to a network side device, includes:

13. A communication device comprising a processor, a memory, and a computer program stored on the memory and running on the processor, the processor implementing the steps of the method of determining the number of data transmission layers according to any one of claims 1 to 8 when executing the computer program.

14. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a program which, when being executed by a processor, carries out the steps of the method of determining the number of data transmission layers according to any one of claims 1 to 8.