CN113315528A

CN113315528A - Radio frequency circuit, terminal equipment and radio frequency signal sending method

Info

Publication number: CN113315528A
Application number: CN202110638376.5A
Authority: CN
Inventors: 刘腾飞; 吴军
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2021-08-27
Anticipated expiration: 2041-06-08
Also published as: CN113315528B

Abstract

According to the radio frequency circuit, the terminal equipment and the method for sending the radio frequency signal, the radio frequency circuit comprises a first signal transmitter and a second signal transmitter; the first radio frequency sending module is connected with the first signal transmitter and used for sending signals of the first communication system network and sending signals of the second communication system network; the second radio frequency sending module is connected with the second signal transmitter and used for sending signals of a second communication system network; the first antenna group is connected with the first radio frequency sending module; the second antenna group is connected with the second radio frequency transmitting module; and one end of the first switch component is arranged between the first radio frequency sending module and the first signal transmitter, and the other end of the first switch component is arranged between the second radio frequency sending module and the second signal transmitter, and is used for selecting a signal transmitting path of the second communication system network. The method is used for improving the uplink and downlink data transmission performance of the terminal equipment in the NR system.

Description

Radio frequency circuit, terminal equipment and radio frequency signal sending method

Technical Field

The present application relates to the field of communications technologies, and in particular, to a radio frequency circuit, a terminal device, and a method for transmitting a radio frequency signal.

Background

With the widespread application of terminal devices such as smart phones in a large number, smart phones have more and more applications and more powerful functions, and smart phones develop towards diversification and personalization directions and become indispensable electronic products in user life. Terminal equipment in a fourth generation 4G mobile communication system generally adopts a single-antenna or dual-antenna radio frequency system architecture, and currently, terminal equipment supporting the 4-antenna radio frequency system architecture is proposed in a new air interface NR system of a fifth generation 5G mobile communication system.

SRS (Sounding Reference Signal) transmission is an important technology of 5G, and means that a terminal transmits SRS information on different physical antennas. If the signal is transmitted only on a fixed antenna, other antenna information is lost, the antenna is not fully utilized, and the highest rate is difficult to obtain. The multiple antennas of the 5G terminal are fully utilized to report channel information in turn (namely SRS antennas transmit in turn), so that the information acquired by the base station is more comprehensive, more accurate data transmission is carried out, and uplink and downlink transmission data of the terminal equipment are quicker. The terminal device in 1T2R mode transmits SRS signals by turns on 2 antennas, and selects one antenna at a time for transmission. The terminal device in 1T4R mode transmits SRS signals by turns on 4 antennas, and selects one antenna at a time for transmission. However, the more the number of antennas capable of participating in sending SRS signals in the terminal device is, the more accurate the channel estimation is, and the better the uplink and downlink data transmission performance of the terminal device is. But the more antennas the terminal device supports, the higher its complexity and cost.

How to improve the uplink and downlink data transmission performance of the terminal equipment in the NR system without increasing the cost becomes an urgent problem to be solved.

Disclosure of Invention

In view of this, the present application provides a radio frequency circuit, a terminal device, and a method for sending a radio frequency signal, so as to solve the problem in the prior art how to improve uplink and downlink data transmission performance of the terminal device in an NR system without increasing cost.

In a first aspect, an embodiment of the present application provides a radio frequency circuit, including:

the first signal transmitter is used for generating signals of a first communication system network;

the second signal transmitter is used for generating a signal of a second communication system network;

the first radio frequency sending module is connected with the first signal transmitter and used for sending a signal of a first communication system network and sending a signal of a second communication system network;

the second radio frequency sending module is connected with the second signal transmitter and used for sending signals of a second communication system network;

the first antenna group is connected with the first radio frequency sending module;

the second antenna group is connected with the second radio frequency transmitting module;

and one end of the first switch assembly is arranged between the first radio frequency sending module and the first signal transmitter, and the other end of the first switch assembly is arranged between the second radio frequency sending module and the second signal transmitter, and is used for selecting a signal transmitting path of the second communication system network.

Preferably, the method further comprises the following steps: a second switch assembly and a third switch assembly; the first antenna group comprises at least one first antenna; the second antenna group comprises at least one second antenna;

the second switch component is arranged between one end of the first switch component and the first radio frequency transmission module and used for selecting a first antenna of a signal to be transmitted in the first antenna group;

the third switch module is arranged between the other end of the first switch module and the second radio frequency transmission module and used for selecting a second antenna of a signal to be transmitted in the second antenna group.

Preferably, the first communication system network is one of a 2G network, a 3G network and a 4G network, and the second communication system network is a 5G network.

In a second aspect, an embodiment of the present application provides a terminal device, including the radio frequency circuit described in any one of the above first aspects.

In a third aspect, an embodiment of the present application provides a method for sending a radio frequency signal, which is applied to the terminal device in the second aspect, where the terminal device includes a management module of a first communication system network and a management module of a second communication system network; the method comprises the following steps:

when a signal of a second communication system network needs to be sent, a management module of the second communication system network determines a target transmission channel in a first transmission channel and a second transmission channel; the first transmitting channel is a transmitting channel between the first radio frequency transmitting module and the first antenna group; the second transmitting path is a transmitting path between the second radio frequency transmitting module and the second antenna group;

and the management module of the second communication system network controls the corresponding switch component to conduct a target transmitting path, and sends a signal of the second communication system network on the target transmitting path.

Preferably, the determining, by the management module of the second communication system network, a target transmission path in the first transmission path and the second transmission path includes:

and the management module of the second communication system network alternately determines the first transmitting path and the second transmitting path as target transmitting paths.

Preferably, before the management module of the second communication system network controls the corresponding switch component to turn on the target transmission path and sends the signal of the second communication system network on the target transmission path, the method further includes:

when the management module of the second communication system network determines the first transmission channel as a target transmission channel, the management module of the second communication system network sends a signal transmission request message to the management module of the first communication system network;

the management module of the first communication system network determines whether the signal of the first communication system network is to be transmitted or not within the transmission time of the signal of the second communication system network according to the signal transmission request message;

if the signal of the first communication system network to be sent does not exist in the sending time of the signal of the second communication system network, sending a signal sending response message to a management module of the second communication system network;

the method includes the following steps that a management module of the second communication system network controls a corresponding switch component to conduct a target transmitting path, and sending a signal of the second communication system network on the target transmitting path includes:

and the management module of the second communication system network controls the corresponding switch component to conduct a path between a second signal transmitter and a first transmitting path according to the signal sending response message, and sends the signal of the second communication system network on the first transmitting path.

Preferably, the signal transmission request message carries the transmission time of the signal of the second communication system network;

the determining, by the management module of the first communication system network, whether the signal of the first communication system network to be transmitted is to be transmitted within the transmission time of the signal of the second communication system network according to the transmission request message includes:

the management module of the first communication system network converts the sending time of the signal of the second communication system network carried in the signal sending request message into the sending time of the signal in the management module of the first communication system network according to the sending request message;

and the management module of the first communication system network determines whether the signal of the first communication system network is to be transmitted in the signal transmission time.

Preferably, the method further comprises the following steps:

if the signal of the first communication system network to be transmitted is to be transmitted within the transmission time of the signal of the second communication system network, determining whether the signal of the first communication system network to be transmitted is a signaling signal by a management module of the first communication system network;

if the signal is not a signaling signal, the management module of the first communication system network releases a first transmitting channel corresponding to the signal of the first communication system network to be transmitted;

and the management module of the first communication system network sends a signal sending response message to the management module of the second communication system network.

Preferably, the method further comprises the following steps:

and if the signaling signal is received, the management module of the first communication system network sends a signal sending rejection message to the management module of the second communication system network.

Preferably, the signal of the second communication system network is an SRS signal.

Preferably, when the signal of the second communication system network needs to be sent, before the management module of the second communication system network determines the target transmission path in the first transmission path and the second transmission path, the method further includes:

the management module of the second communication system network receives the sending information of the signal of the second communication system network sent by the base station;

and the management module of the second communication system network determines the sending time of the signal of the second communication system network according to the sending information of the signal of the second communication system network.

By adopting the scheme provided by the embodiment of the application, the transmission path between the first radio frequency transmission module and the first antenna group is multiplexed to transmit the signal of the second communication system network, so that the signal of the second communication system network can be transmitted not only through the second antenna group but also through the first antenna group, the number of antennas for transmitting the signal of the second communication system network is increased, the uplink and downlink transmission data of the terminal equipment are quicker, and the purpose of improving the uplink and downlink data transmission performance of the terminal equipment in the NR system under the condition of not increasing the cost is realized.

Drawings

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

Fig. 1 is a schematic structural diagram of a radio frequency circuit according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of another radio frequency circuit according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of another radio frequency circuit according to an embodiment of the present disclosure;

fig. 4 is a flowchart illustrating a method for transmitting a radio frequency signal according to an embodiment of the present application;

fig. 5 is a schematic flowchart of another method for transmitting a radio frequency signal according to an embodiment of the present application;

fig. 6 is a schematic flowchart of another method for transmitting a radio frequency signal according to an embodiment of the present application;

fig. 7 is a schematic flowchart of another method for transmitting a radio frequency signal according to an embodiment of the present application;

fig. 8 is a flowchart illustrating another method for transmitting a radio frequency signal according to an embodiment of the present application.

Detailed Description

For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.

It should be understood that the embodiments described are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one type of associative relationship that describes an associated object, meaning that three types of relationships may exist, e.g., A and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

Before specifically describing the embodiments of the present application, terms applied or likely to be applied to the embodiments of the present application will be explained first.

An SRS (Sounding Reference Signal) used for estimating uplink channel frequency domain information and performing frequency selective scheduling in wireless communication; used for estimating the downlink channel and carrying out downlink beam forming.

NR (New Radio, New air interface), a global 5G standard designed based on a New air interface of OFDM (Orthogonal Frequency Division Multiplexing), is also a very important cellular mobile technology base for the next generation, and the 5G technology will realize ultra-low delay and high reliability.

NSA (Non-standard networking) refers to deployment of a 5G network using an existing 4G infrastructure, and a 5G carrier based on an NSA architecture only carries user data, and control signaling of the 5G carrier is still transmitted through the 4G network.

LTE (Long Term Evolution) is a Long Term Evolution of The UMTS (Universal Mobile Telecommunications System) technical standard established by The 3GPP (The 3rd Generation Partnership Project) organization. Is an evolution of 3G, is a transition between 3G and 4G technologies, and is a global standard for 3.9G.

In the prior art, in a 5G network, a terminal device needs to periodically transmit an SRS signal to a base station. When sending the SRS signal, the base station sends the SRS signal through different physical antennas, so that the base station can know the uplink and downlink data channels of the terminal equipment according to the received SRS, and more accurate data transmission is facilitated. When the terminal equipment sends the SRS signal, the more antennas are used, the more accurate the estimation of the uplink and downlink data channels of the terminal equipment is obtained by the base station, and the better the uplink and downlink data transmission performance of the terminal equipment is. However, the more antennas supported by the terminal device, the higher the complexity and the higher the cost.

In order to solve the above problem, in the NSA scenario, there are 5G networks and 4G networks. In order to reduce the cost, most of the existing terminal devices are 1T2R mode devices. That is, the terminal device transmits SRS signals on 2 antennas in turn, and selects one antenna at a time to transmit. Since the rotation of SRS signals on physical antennas is an important technology of 5G networks, only 5G networks exist. In order to improve the uplink and downlink data transmission performance of the terminal device in 1T2R mode, the transmission path of the terminal device in 4G network for transmitting uplink signals may be multiplexed into the transmission path of the terminal device in 1T2R mode in 5G network for transmitting SRS signals, the transmission path of the terminal device in 1T2R mode in 5G network for transmitting SRS signals is added, and SRS signals are transmitted by more than 2 antennas, so that the uplink and downlink data transmission of the terminal device is faster, and the purpose of improving the uplink and downlink data transmission performance of the terminal device in NR system without increasing cost is achieved.

Specifically, in the embodiment of the present application, a radio frequency circuit is provided. Fig. 1 is a schematic structural diagram of a radio frequency circuit according to an embodiment of the present disclosure. As shown in fig. 1, the radio frequency circuit includes:

the first signal transmitter 100 is configured to generate a signal of a network of a first communication system.

And a second signal transmitter 101, configured to generate a signal of a second communication system network.

The first radio frequency transmitting module 102 is connected to the first signal transmitter 100, and configured to transmit a signal of a first communication system network and transmit a signal of a second communication system network.

The second radio frequency sending module 103 is connected with the second signal transmitter 101 and is used for sending a signal of a second communication system network;

the first antenna group 104 is connected to the first rf transmitting module 102.

And the second antenna group 105 is connected to the second rf transmission module 103.

The first switch component 106 has one end disposed between the first rf transmitting module 102 and the first signal transmitter 100, and the other end disposed between the second rf transmitting module 103 and the second signal transmitter 101, and is configured to select a transmission path of a signal of the second communication system network.

In the embodiment of the present application, the first signal transmitter 100 may generate a signal of a network of a first communication system, and the second signal transmitter 101 may generate a signal of a network of a second communication system. The first rf transmitting module 102 is connected to the first signal transmitter 100, and the first rf transmitting module 102 is further connected to the first antenna group 104, so that the first rf transmitting module 102 and the first antenna group 104 form a first transmitting path for transmitting signals of the first communication system network. The second radio frequency sending module 103 is connected to the second signal transmitter 101, and the second radio frequency sending module 103 is further connected to the second antenna group 105, so that the second radio frequency sending module 103 and the second antenna group 105 form a second sending channel for sending a signal of the second communication system network. In order to increase the number of antennas for signal transmission in the second communication system network, the antenna for transmitting the signal of the first communication system network may be multiplexed to transmit the signal of the second communication system network, that is, the antenna for transmitting the signal of the first communication system network is multiplexed to transmit the signal of the second communication system network through the first transmission path. Based on this, one end of the first switch component 106 is disposed between the first rf transmission module 102 and the first signal transmitter 100, and the other end is disposed between the second rf transmission module 103 and the second signal transmitter 101. In this way, the first switch component 106 can be controlled to switch on the path between the second signal transmitter 101 and the first transmission path, or switch on the path between the second signal transmitter 101 and the second transmission path, so that when the first switch component 106 controls to switch on the path between the second signal transmitter 101 and the first transmission path, the second signal transmitter 101 can transmit the generated signal of the second communication system network through the first transmission path. When the first switch component 106 controls to turn on the path between the second signal transmitter 101 and the second transmission path, the second signal transmitter 101 transmits the generated signal of the second communication system network through the second transmission path.

It should be noted that the first transmission path is a transmission path between the first rf transmission module 102 and the first antenna group 104. The second transmission path is a transmission path between the second rf transmitting module 103 and the second antenna group 105.

Therefore, the radio frequency circuit can multiplex the first transmission channel to transmit the signal of the second communication system network, so that the signal of the second communication system network can be transmitted not only through the second antenna group 105 but also through the first antenna group 104, and the transmission antenna of the signal of the second communication system network is added, thereby enabling the base station side to estimate the channel condition more accurately, and improving the speed of uplink and downlink data transmission of the terminal equipment.

And through the radio frequency circuit, when the first transmission channel is required to be multiplexed to transmit the signal of the second communication system network, the first switch component is controlled to conduct the channel between the second signal transmitter and the first transmission channel, so that the situation that the radio frequency channel is occupied and cannot receive the signal of the first communication system network when the signal of the second communication system network is transmitted can be prevented.

Further, as shown in fig. 2, the rf circuit further includes: a second switching element 107 and a third switching element 108; the first antenna group 104 includes at least one first antenna 1041; the second antenna group 105 includes at least one second antenna 1051.

The second switch element 107 is disposed between one end of the first switch element 106 and the first rf transmitting module 102, and is used for selecting the first antenna 1041 of the signal to be transmitted in the first antenna group 104.

The third switch assembly 108 is disposed between the other end of the first switch assembly 106 and the second rf transmission module 103, and is used for selecting the second antenna 1051 to be transmitted in the second antenna group 105.

It should be noted that the number of the first radio frequency transmission modules is the same as the number of the first antennas included in the first antenna group. Each first antenna is respectively and independently connected with one first radio frequency transmitting module, so that each signal can be ensured to be transmitted on the corresponding radio frequency channel. That is, the at least one first radio frequency module is connected with the at least one first antenna of the first antenna group in a one-to-one correspondence manner.

In the embodiment of the present application, since a signal to be transmitted is transmitted through an antenna, one signal may be transmitted through one antenna. In order to prevent a signal from being transmitted through multiple antennas and causing resource waste, a switch may be provided for a transmission path of each antenna. That is, the rf circuit further includes a second switch element 107 and a third switch element 108. The second switch component 107 is disposed between one end of the first switch component 106 and the first rf transmitting module 102, that is, one end of the second switch component 107 is connected to one end of the first switch component 106, and the other end is connected to the first rf transmitting module 102. In this way, the path between the first switch component 106 and the first rf transmitting module 102 can be controlled by controlling the second switch component 107.

The first antenna group 104 includes at least one first antenna 1041. In order to control the transmission path of each first antenna 1041, the second switch assembly 107 may include at least one first switch module. By controlling the on/off of each first switch module, the on/off of the transmission path between one end of the first switch assembly 106 and each first antenna 1041 is controlled, so that the purpose of only controlling the on/off of the transmission path between one end of the first switch assembly 106 and one first antenna 1041 and the off of the transmission path between one end of the first switch assembly 106 and the other first antennas 1041 at each time can be achieved, and resource waste is avoided.

Similarly, the third switch component 108 is disposed between the other end of the first switch component 106 and the second rf transmitting module 103, that is, one end of the third switch component 108 is connected to the other end of the first switch component 106, and the other end is connected to the second rf transmitting module 103. As such, the path between the first switch component 106 and the second rf transmitting module 103 may be controlled by controlling the third switch component 108.

The second antenna group 105 includes at least one second antenna 1051. To control the transmit path of each second antenna 1051, the third switching component 1087 may comprise at least one second switching module. By controlling the on/off of each second switch module, the on/off of the transmission path between the other end of the first switch assembly 106 and each second antenna 1051 is controlled, so that the purpose of controlling the on/off of the transmission path between the other end of the first switch assembly 106 and one second antenna 1051 and the off of the transmission path between the other end of the first switch assembly 106 and the other second antennas 1051 at each time can be achieved, and the waste of resources is avoided.

Further, the first communication system network is one of a 2G network, a 3G network and a 4G network, and the second communication system network is a 5G network.

For example, as shown in fig. 3, it is assumed that the first communication system network is a 4G network, and the second communication system network is a 5G network. The first antenna set 104 includes two first antennas 1041, the second antenna set 105 includes two second antennas 1051, the first switch element 106 is a single-pole single-throw switch, the second switch element 107 is a double-pole double-throw switch, and the third switch element 108 is a double-pole double-throw switch. At this time, the first signal transmitter 100 is a 4G network signal transmitter, and the second signal transmitter 101 is a 5G network signal transmitter. The first signal transmitter 100 is connected to one end of the second switch component 107, the other end of the second switch component 107 is connected to one end of the first rf transmission module 102, and the other end of the first rf transmission module 102 is connected to the first antenna 1041. One end of the first switching element 106 is disposed between one end of the second switching element 107 and the first signal transmitter 100. The second signal transmitter 101 is connected to one end of the third switch assembly 108, the other end of the third switch assembly 108 is connected to one end of the second rf transmitting module 103, and the other end of the second rf transmitting module 103 is connected to the second antenna 1051 respectively. The other end of the first switching component is disposed between the second signal transmitter 101 and one end of the third switching component 108.

When sending the SRS signal of the 5G network through the radio frequency, when determining that the SRS signal is transmitted from the first second antenna 1051, the first switch component 106 may be turned off, and the path between the second signal transmitter 101 and the first second antenna 1051 may be turned on by controlling the closing of the third switch component 108. The SRS signal is transmitted to the first and second antennas 1051 through the second rf transmission module 103, and is transmitted through the first and second antennas 1051. Upon determining that the SRS signal is transmitted from the first antenna 1041, the path between the two second antennas 1051 and the second signal transmitter 101 may be opened by the third switching element 108. The first switch element 106 is controlled to close, and a path between the second signal transmitter 101 and the first antenna 1041 is closed and conducted through the second switch element 107. The SRS signal is transmitted to the first antenna 1041 through the first radio frequency transmitting module 102, and is transmitted through the first antenna 1041. In the application, the terminal device of the 5G network can transmit the SRS signal to the other 2 antennas of the 4G network through the transmission path of the uplink signal of the 4G network, thereby completing the SRS transmission of the uplink 4 antennas, increasing the number of antennas participating in the SRS transmission, improving the accuracy of channel estimation by the base station, enabling the uplink and downlink transmission data of the terminal device to be faster, and achieving the purpose of improving the uplink and downlink data transmission performance of the terminal device in the NR system without increasing the cost.

Therefore, in the application, the transmission path between the first radio frequency transmission module and the first antenna group is multiplexed to transmit the signal of the second communication system network, so that the signal of the second communication system network can be transmitted not only through the second antenna group, but also through the first antenna group, the number of antennas for transmitting the signal of the second communication system network is increased, uplink and downlink transmission data of the terminal device are quicker, and the purpose of improving uplink and downlink data transmission performance of the terminal device in an NR system under the condition of not increasing cost is achieved.

An embodiment of the present application provides a terminal device, including the radio frequency circuit according to any one of the above embodiments.

In the application, the transmission paths between the first radio frequency transmission module and the first antenna group are multiplexed to transmit the signals of the second communication system network, so that the signals of the second communication system network can be transmitted through the second antenna group and also can be transmitted through the first antenna group, the number of antennas for transmitting the signals of the second communication system network is increased, uplink and downlink transmission data of the terminal equipment are quicker, and the purpose of improving the uplink and downlink data transmission performance of the terminal equipment in an NR system under the condition of not increasing the cost is realized.

Fig. 4 is a flowchart illustrating a method for transmitting a radio frequency signal according to an embodiment of the present application. The method is applicable to the terminal device described in the above embodiment, and the terminal device includes a management module of a first communication system network and a management module of a second communication system network. As shown in fig. 4, the method includes:

s401, when a signal of the second communication system network needs to be sent, the management module of the second communication system network determines a target transmission channel in the first transmission channel and the second transmission channel.

The first transmission path is a transmission path between the first radio frequency transmission module and the first antenna group. The second transmission path is a transmission path between the second radio frequency transmission module and the second antenna group.

Specifically, when the signal of the second communication system network needs to be sent, the management module of the second communication system network may determine, according to the preset rule, a target transmission path for sending the signal of the second communication system network in the first transmission path and the second transmission path.

It should be noted that the preset rule is a preset rule for determining the target transmission path. For example, it may be an alternating rule, that is, a first transmission path and a second transmission path are alternately determined as a target transmission path. Other rules may also be used, and the user may set the rules according to actual requirements, which is not limited in this application.

Further, the determining, by the management module of the second communication system network, the target transmission path in the first transmission path and the second transmission path includes: and the management module of the second communication system network alternately determines the first transmitting path and the second transmitting path as the target transmitting path.

That is, the preset rule is to alternately determine the transmission path of the signal of the second communication system network and the transmission path of the signal of the first communication system network as the target transmission path. The management module of the second communication system network may determine the first transmission path and the second transmission path as the target transmission path.

S402, the management module of the second communication system network controls the corresponding switch component to conduct the target transmitting path, and the signal of the second communication system network is sent on the target transmitting path.

Specifically, after the target transmission path is determined, the management module of the second communication system network may turn on the target transmission path by controlling the corresponding switch component, and send a signal of the second communication system network on the target transmission path after the target transmission path is turned on.

Further, the signal of the first communication system network is transmitted through the first transmission path, and when the first transmission path is reused for transmitting the signal of the second communication system network, it is required to ensure that the transmission of the signal of the first communication system network is not affected. At this time, when the signal of the second communication system network is transmitted through the first transmission path, it is necessary to determine whether the first transmission path can transmit the signal of the second communication system network.

Based on the above reasons, as shown in fig. 5, before the step S402, where the management module of the second communication system network controls the corresponding switch component to turn on the target transmission path, and sends the signal of the second communication system network on the target transmission path, the method further includes:

s403, when the management module of the second communication system network determines the first transmission channel as the target transmission channel, the management module of the second communication system network sends a signal sending request message to the management module of the first communication system network.

Specifically, when the management module of the second communication system network determines that the first transmission path is the target transmission path, it needs to first determine whether the first transmission path can transmit the signal of the second communication system network at the transmission time of the signal of the second communication system network. Based on the above, the management module of the second communication system network sends a signal sending request message to the management module of the first communication system network.

It should be noted that the signal sending request message is used to request the management module of the first communication system network to send a signal of the second communication system network through the first transmission path.

Further, the signaling request message may be a GAP request message.

S404, the management module of the first communication system network determines whether the signal of the first communication system network is to be transmitted or not within the transmission time of the signal of the second communication system network according to the signal transmission request message.

Specifically, after the management module of the first communication system network receives the signal transmission request message, it can be known that the management module of the second communication system network needs to multiplex the first transmission channel to transmit the signal of the second communication system network. At this time, after receiving the signal transmission request message, the management module of the first communication system network may determine the transmission time of the signal of the second communication system network, detect the signal transmission task table of the first communication system network, and determine whether the signal of the first communication system network is to be transmitted within the transmission time of the signal of the second communication system network.

It should be noted that the signal transmission task table of the first communication system network is preset, and records the transmission time of each signal of the first communication system network to be transmitted.

Further, the signal transmission request message carries the transmission time of the signal of the second communication system network.

At this time, the determining, by the management module of the first communication system network, whether the signal of the first communication system network to be transmitted is to be transmitted within the transmission time of the signal of the second communication system network according to the transmission request message includes:

and the management module of the first communication system network converts the sending time of the signal of the second communication system network carried in the signal sending request message into the sending time of the signal in the management module of the first communication system network according to the sending request message. The management module of the first communication system network determines whether a signal of the first communication system network is to be transmitted within the signal transmission time.

In this embodiment of the application, when a signal of a second communication system network needs to be sent through a first transmission channel, it needs to first determine whether the first transmission channel has a signal of a first communication system network that needs to be sent in a time period of sending the signal of the second communication system network. Therefore, after determining the transmission time of the signal of the second communication system network to be transmitted, the management module of the second communication system network may add the transmission time of the signal of the second communication system network to the signal transmission request message and transmit the signal to the management module of the first communication system network. After receiving the signal transmission request message, the management module of the first communication system network may analyze the signal transmission request message to obtain the transmission time of the signal of the second communication system network carried in the signal transmission request message. And converting the sending time into the local time of the module of the first communication system network, namely the sending time of the signal in the management module of the first communication system network, detecting a signal transmission task table of the first communication system network by the management module of the first communication system network, and determining whether the signal of the first communication system network is to be sent in the sending time of the signal.

Therefore, the conflict between the signal of the second communication system network and the signal of the first communication system network when the first transmission channel is used can be avoided when the local timing clock of the management module of the first communication system network is different from the local timing clock of the management module of the second communication system network.

It should be noted that the management module of the first communication system network may not perform the conversion of the transmission time of the signal of the second communication system network, at this time, the local time clock of the management module of the first communication system network and the local time clock of the management module of the second communication system network need to be synchronized first, so that the local time clock of the management module of the first communication system network is the same as the local time clock of the management module of the second communication system network, and then, whether the signal of the first communication system network is to be transmitted or not in the transmission time can be determined directly according to the transmission time of the signal of the second communication system network.

S405, if the signal of the first communication system network to be sent does not exist in the sending time of the signal of the second communication system network, the management module of the first communication system network sends a signal sending response message to the management module of the second communication system network.

Specifically, when the management module of the first communication system network determines that there is no signal of the first communication system network to be sent in the sending time of the signal of the second communication system network, it indicates that the first sending channel is in an idle state, and at this time, the management module of the first communication system network generates a signal sending response message for indicating that the sending of the signal of the second communication system network through the first sending channel is agreed, and sends the signal sending response message to the management module of the second communication system network.

At this time, in step S402, the management module of the second communication system network controls the corresponding switch component to turn on the target transmission path, and the sending the signal of the second communication system network on the target transmission path includes:

and the management module of the second communication system network controls the corresponding switch component to conduct a path between the second signal transmitter and the first transmitting path according to the signal sending response message, and sends the signal of the second communication system network on the first transmitting path.

That is to say, the management module of the second communication system network receives the signal transmission response message sent by the management module of the first communication system network, and learns that the signal of the second communication system network can be sent through the first transmission channel when receiving the signal transmission response message. At this time, the management module of the second communication system network may control the corresponding switch component to turn on the first transmission path of the signal of the second communication system network to be transmitted, and at this time, the management module of the second communication system network needs to control the first switch component to be closed, and control the corresponding switch module in the second switch component to be closed, and turn on the path between the second signal transmitter and the corresponding first transmission path, and transmit the signal of the second communication system network on the first transmission path.

Further, as shown in fig. 6, the method further includes:

step S406, if the signal of the first communication system network to be transmitted is to be transmitted within the transmission time of the signal of the second communication system network, the management module of the first communication system network determines whether the signal of the first communication system network to be transmitted is a signaling signal.

Specifically, the management module of the first communication system network detects a signal of the first communication system network to be transmitted in the transmission time of the signal of the second communication system network, and may further detect the type of the signal of the first communication system network to be transmitted, and determine whether the signal is a signaling signal. The signaling signal is a transmission signal mainly responsible for the first communication system network, and if the signaling signal is the first communication system network, the signaling signal needs to be transmitted on time. If the signal is not a signaling signal, for example, a service data signal, the signal may be sent after delaying, and the signal of the second communication system network is sent preferentially.

Step S407, if the signal is not a signaling signal, the management module of the first communication system network releases a first transmission channel corresponding to the signal of the first communication system network to be transmitted.

Specifically, the management module of the first communication system network may preferentially send the signal of the second communication system network when determining that the signal of the first communication system network to be sent is not a signaling signal within the sending time of the signal of the second communication system network, and at this time, the management module of the first communication system network may release the first sending channel corresponding to the signal of the first communication system network to be sent first, so as to send the signal of the second communication system network.

It should be noted that, after the signal of the second communication system network is sent through the first transmission path, the management module of the first communication system network can recover the first transmission path corresponding to the signal of the first communication system network to be sent.

Step S408, the management module of the first communication system network sends a signal sending response message to the management module of the second communication system network.

Specifically, after releasing a first transmission path corresponding to a signal of the first communication system network to be transmitted, the management module of the first communication system network may generate a signal transmission response message for indicating that it is agreed to transmit a signal of the second communication system network through the first transmission path, and transmit the signal transmission response message to the management module of the second communication system network.

Further, as shown in fig. 7, the method further includes:

step S409, if the signaling signal is received, the management module of the first communication system network sends a signal transmission rejection message to the management module of the second communication system network.

Specifically, when the management module of the first communication system network determines that the signal of the first communication system network to be sent in the sending time of the signal of the second communication system network is a signaling signal, the management module of the first communication system network generates a sending rejection message to inform that the management module of the second communication system network cannot send the signal of the second communication system network through the first sending channel because the transmission of the signaling signal of the first communication system network needs to be preferentially guaranteed. At this time, after receiving the transmission rejection message, the management module of the second communication system network may stop the transmission of the signal of the second communication system network at the current time, and may transmit the signal of the second communication system network through the second transmission path. When the signal of the second communication system network is transmitted through the second transmission path, the following step S410 may be performed.

And step S410, the management module of the second communication system network sends a rejection message according to the signal, controls the corresponding switch component to conduct a channel between the second signal transmitter and the second transmission channel, and sends the signal of the second communication system network through the second transmission channel.

Specifically, after receiving the signal transmission rejection message, the management module of the second communication system network learns that the signal of the second communication system network cannot be transmitted through the first transmission path, and at this time, the management module of the second communication system network may transmit the signal of the second communication system network through the second transmission path. Based on this, the management module of the second communication system network can control the first switch component to be switched off and control the third switch component to be switched on, so that the channel between the second signal transmitter and the second transmitting channel is switched on, and the signal of the second communication system network is sent out through the second transmitting channel.

Further, the signal of the second communication system network is an SRS signal.

Further, as shown in fig. 8, before step S401, the method further includes:

step S411, the management module of the second communication system network receives the transmission information of the signal of the second communication system network, which is transmitted by the base station.

Specifically, the signal of the second communication system network is sent by the terminal device to the base station, so that the base station can know the uplink and downlink data transmission link condition of the terminal device according to the signal of the second communication system network. Therefore, the base station may send, to the terminal device in advance, information indicating a transmission request of the base station for the signal of the second communication system network sent by the terminal device, that is, send the transmission information of the signal of the second communication system network to the management module of the second communication system network.

The sending information of the signal of the second communication system network includes information such as sending time and sending format of the signal of the second communication system network.

S412, the management module of the second communication system network determines the sending time of the signal of the second communication system network according to the sending information of the signal of the second communication system network.

Specifically, after receiving the transmission information of the signal of the second communication system network, the management module of the second communication system network may analyze the transmission information of the signal of the second communication system network, and obtain the transmission time, the transmission format, and the like of the signal of the second communication system network required by the base station, so that the management module of the second communication system network may calculate the transmission time of the signal of the second communication system network according to the transmission information, and transmit the signal of the second communication system network when the transmission time is reached.

Illustratively, the terminal device is a terminal device with 1T2R mode, that is, the terminal device transmits SRS signals by turns on 2 antennas. Assume that the first communication system network is a 4G network, and the second communication system network is a 5G network. And the signal of the second communication system network is an SRS signal. In the NSA scenario, the first transmission path in the 4G network is mainly responsible for transmission of signaling, and the 5G network has the main advantages of high uplink and downlink transmission rate and high throughput. The uplink in the 4G network is also necessarily maintained, and thus the uplink of the 4G network in the uplink signal sharing terminal device for the 5G network can be realized by the following method.

It should be noted that the subcarrier spacing of the 4G network is fixed 15KSCS, while the subcarrier spacing of the 5G network is 15KSCS at the minimum, which is usually 30KSCS or even higher, so that a SLOT length is shorter than that of the 4G network. The SRS sending time of the 5G network is short, according to the configuration calculation of the 30KSCS, one SRS symbol is 35.7us, the SRS sending time of the 5G network occupies a short time of an uplink transmitting channel of the 4G network, and the switching of an uplink device can be basically completed in a plurality of symbols of the 4G network, so that the influence of an uplink of the 4G network in the uplink signal sharing terminal equipment of the 5G network on the 4G network is limited.

The terminal equipment comprises a management module of the 4G network, namely an LTE management module, and a management module of the 5G network, namely an NR management module. When the terminal equipment opens the optimization function of the uplink transmission path of the 5G network, the terminal equipment sends 1T4R information for indicating that the terminal equipment can transmit SRS signals on 4 antennas in a round-robin manner to the base station. The base station may transmit transmission information of the SRS signal to the terminal device, upon receiving the 1T4R information transmitted by the terminal device. After receiving the transmission information of the SRS signal, the NR management module of the terminal device analyzes the transmission information of the SRS signal, and may calculate the transmission time of the SRS signal indicated by the base station. When the sending time of the SRS signal is reached, the NR management module can determine a target transmitting path in an uplink transmitting path of the 5G network and an uplink transmitting path of the 4G network according to a preset rule. Assuming that the NR management module determines that the uplink transmission path of the 4G network is the target transmission path, the NR management module generates a signal transmission request message, adds the transmission time of the SRS signal to the signal transmission request message, and transmits the SRS signal to the LTE management module. After receiving the signal transmission request message, the LTE management module can analyze the transmission time of the SRS signal carried in the signal transmission request message. And the LTE management module converts the sending time of the SRS signal into the sending time corresponding to the local clock. And inquiring an LTE task table according to the acquired sending time corresponding to the local clock, and detecting whether an uplink transmitting channel of the 4G network has a 4G network signal to be sent or not. And if the 4G network signal to be sent does not exist, the LTE management module directly generates a signal sending response message and sends the signal sending response message to the NR management module. And after receiving the signal transmission response message, the NR management module learns that the SRS signal can be transmitted through an uplink transmission channel of the 4G network. At this time, the relevant switch component may be controlled to turn on the uplink path between the signal transmitter of the SRS signal and the uplink transmission path of the 4G network, and the SRS signal is transmitted through the uplink transmission path of the 4G network.

If the LTE management module detects a 4G network signal to be transmitted, it needs to detect whether the type of the 4G network signal to be transmitted is a signaling signal. If the 4G network signal to be transmitted is not a signaling signal, the uplink transmission path of the 4G network corresponding to the 4G network signal to be transmitted may be released first, a signal transmission response message is generated, and the signal transmission response message is transmitted to the NR management module. And after receiving the signal transmission response message, the NR management module learns that the SRS signal can be transmitted through an uplink transmission channel of the 4G network. At this time, the relevant switch component may be controlled to turn on the uplink path between the signal transmitter of the SRS signal and the uplink transmission path of the 4G network, and the SRS signal is transmitted through the uplink transmission path of the 4G network. And after the SRS signal is sent through the uplink transmission channel of the 4G network, the LTE management module recovers the uplink transmission channel of the 4G network corresponding to the 4G network signal to be sent.

If the LTE management module detects that the 4G network signal to be transmitted is a signaling signal and the 4G network signal to be transmitted needs to be preferentially transmitted, a signal transmission rejection message is generated and transmitted to the NR management module.

By the method, the SRS signal of the 5G network can be transmitted by multiplexing the uplink transmission path of the 4G network, and the terminal equipment in the 1T2R mode can finish the transmission of the SRS signal of the uplink 4 antenna. That is, the terminal device in 1T2R mode is changed into the terminal device in 1T4R mode by multiplexing the uplink transmission path of the 4G network, and the number of antennas that transmit the reference signal can be involved, so that the accuracy of the base station for signal estimation is improved, and a higher transmission rate is obtained, so that the uplink and downlink transmission data of the terminal device are more rapidly improved, and the purpose of improving the uplink and downlink data transmission performance of the terminal device in the NR system without increasing the cost is achieved.

Those skilled in the art will readily appreciate that the techniques of the embodiments of the present invention may be implemented as software plus a required general purpose hardware platform. Based on such understanding, the technical solutions in the embodiments of the present invention may be essentially or partially implemented in the form of a software product, which may be stored in a storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the embodiments or some parts of the embodiments.

The same and similar parts in the various embodiments in this specification may be referred to each other. Especially, as for the device embodiment and the terminal embodiment, since they are basically similar to the method embodiment, the description is relatively simple, and the relevant points can be referred to the description in the method embodiment.

Claims

1. A radio frequency circuit, comprising:

2. The radio frequency circuit of claim 1, further comprising: a second switch assembly and a third switch assembly; the first antenna group comprises at least one first antenna; the second antenna group comprises at least one second antenna;

3. The radio frequency circuit according to claim 1, wherein the first communication system network is one of a 2G, 3G, or 4G network, and the second communication system network is a 5G network.

4. A terminal device, characterized in that it comprises a radio frequency circuit according to any one of claims 1-3.

5. A method for transmitting radio frequency signals, which is applied to the terminal device as claimed in claim 4, wherein the terminal device comprises a management module of a first communication system network and a management module of a second communication system network; the method comprises the following steps:

6. The method according to claim 5, wherein the determining, by the management module of the second communication system network, the target transmission path in the first transmission path and the second transmission path comprises:

7. The method according to claim 6, wherein before the management module of the second communication system network controls the corresponding switch component to turn on a target transmission path, and the signal of the second communication system network is sent on the target transmission path, the method further comprises:

8. The method according to claim 7, wherein the signal transmission request message carries a transmission time of the signal of the network of the second communication system;

9. The method of claim 7, further comprising:

10. The method of claim 9, further comprising:

11. The method according to any one of claims 5 to 10, wherein the signal of the second communication system network is an SRS signal.

12. The method according to any one of claims 5 to 10, wherein before the management module of the second communication system network determines a target transmission path in the first transmission path and the second transmission path when the signal of the second communication system network needs to be sent, the method further includes: