CN113037441A

CN113037441A - Information sending method, downlink channel information acquisition method and equipment

Info

Publication number: CN113037441A
Application number: CN201911250087.7A
Authority: CN
Inventors: 乌力吉; 马帅; 阮航
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2021-06-25

Abstract

The invention provides an information sending method, a downlink channel information acquisition method and equipment, belonging to the technical field of wireless communication, wherein the information sending method is applied to a terminal, the terminal comprises a first antenna, the first antenna is used for receiving signals of a second network, and the information sending method comprises the following steps: during a preset time window, sending a channel sounding reference signal of the second network through the first antenna, so that network side equipment of the second network estimates downlink channel information corresponding to the first antenna according to the channel sounding reference signal based on channel reciprocity; wherein, except for the preset time window, the first antenna is only used for transmitting signals of a first network. In the invention, the network side equipment of the second network can correctly evaluate the downlink channels of all the antennas receiving the second network signals on the terminal so as to correctly use the information of downlink MCS, RANK and the like, thereby enhancing the downlink performance and improving the downlink throughput.

Description

Information sending method, downlink channel information acquisition method and equipment

Technical Field

The present invention relates to the field of wireless communication technologies, and in particular, to an information sending method, a downlink channel information obtaining method, and a device.

Background

Currently, 3GPP defines two schemes for New Radio (NR) networking, i.e. stand-alone networking (SA) and Non-stand-alone Networking (NSA), which are the fifth generation mobile communication technology (5G). The non-independent networking is that a control plane (4G carries control signaling) is independently deployed by a fourth generation mobile communication technology (4G, that is, Long Term Evolution (LTE)), a user plane (5G and 4G carry user plane data) is commonly deployed by 5G and 4G or a user plane (only 5G carries user plane data) is independently deployed by 5G (5G carries control signaling and user plane data) is independently deployed by independent networking, and the independent networking is that a control plane and a user plane are independently deployed by 5G (5G carries control signaling and user plane data independently). The independent networking mode of the 5G new air interface requires independent deployment of a 5G end-to-end network, new establishment of a base station and a core network, so that the 5G can work independently of 4G. The non-independent networking mode can depend on the existing 4G network, so that the requirement of part of operators on the 5G network is met.

The terminal connection mode of the non-independent networking is double-link and is respectively connected with the 4G base station and the 5G base station. In the prior art, the NR network side cannot accurately estimate downlink channels of all downlink antennas of the NSA network architecture terminal, so that the downlink performance of the NSA network architecture terminal is damaged and is lower than that of an SA network architecture terminal having the same receiving hardware, which affects user experience.

Disclosure of Invention

In view of this, the present invention provides an information sending method, a downlink channel information obtaining method, and a device, which are used to solve the problem that, at present, an NR network side cannot accurately evaluate downlink channels of all downlink antennas of an NSA network architecture terminal, so that downlink performance of the NSA network architecture terminal is damaged, and user experience is affected.

In order to solve the above technical problem, in a first aspect, the present invention provides an information sending method applied to a terminal, where the terminal includes a first antenna, and the first antenna is configured to receive a signal of a second network, and includes:

during a preset time window, sending a channel sounding reference signal of the second network through the first antenna, so that network side equipment of the second network estimates downlink channel information corresponding to the first antenna according to the channel sounding reference signal based on channel reciprocity;

wherein, except for the preset time window, the first antenna is only used for transmitting signals of a first network.

Optionally, the terminal includes a first transmission path for transmitting a signal of the first network, a second transmission path for transmitting a signal of the second network, and a switching circuit; the information sending method further comprises the following steps:

when the preset time window begins, controlling the switching circuit to switch the first antenna from being connected with the first transmission path to being connected with the second transmission path;

and when the preset time window is finished, controlling the switching circuit to switch the first antenna from being connected with the second transmission path to being connected with the first transmission path.

In a second aspect, the present invention further provides a method for acquiring downlink channel information, which is applied to a network side device of a second network, and includes:

during a preset time window, receiving a channel sounding reference signal of the second network, which is sent by a terminal through a first antenna; the first antenna is used for receiving signals of the second network, and except for the preset time window, the first antenna is only used for sending signals of the first network;

and based on the channel reciprocity, estimating downlink channel information corresponding to the first antenna according to the channel sounding reference signal.

Optionally, the method for acquiring downlink channel information further includes:

and sending configuration information to a terminal, wherein the configuration information is used for configuring the preset time window or is used for configuring a measurement interval, and the measurement interval comprises the preset time window.

In a third aspect, the present invention further provides an information sending method, which is applied to a terminal, where the terminal includes a first antenna and a second antenna, and includes:

and reporting the relative relationship between the first antenna and the second antenna so that the network side equipment of the second network acquires the downlink channel information corresponding to the first antenna according to the relative relationship and the downlink channel information corresponding to the second antenna.

Optionally, the first antenna is configured to receive signals of the second network, and can only be configured to transmit signals of the first network; the second antenna is used for receiving and transmitting signals of the second network.

Optionally, the relative relationship includes at least one of:

a relative antenna angle between the first antenna and the second antenna;

a relative distance between the first antenna and the second antenna;

a phase offset between the first antenna and the second antenna.

In a fourth aspect, the present invention further provides a method for acquiring downlink channel information, which is applied to a network side device of a second network, and includes:

receiving a relative relation between a first antenna and a second antenna reported by a terminal;

and acquiring the downlink channel information corresponding to the first antenna according to the relative relationship and the downlink channel information corresponding to the second antenna.

Optionally, the downlink channel information corresponding to the second antenna is obtained by estimating according to a channel sounding reference signal sent by the second antenna.

In a fifth aspect, the present invention further provides a terminal, where the terminal includes a first antenna, and the first antenna is configured to receive a signal of a second network, and further includes:

a reference signal sending module, configured to send, through the first antenna, a channel sounding reference signal of the second network during a preset time window, so that a network side device of the second network estimates, based on channel reciprocity, downlink channel information corresponding to the first antenna according to the channel sounding reference signal;

Optionally, the terminal includes a first transmission path for transmitting a signal of the first network, a second transmission path for transmitting a signal of the second network, and a switching circuit; the terminal further comprises:

the first switching module is used for controlling the first antenna to be switched from being connected with the first transmission path to being connected with the second transmission path by controlling the switching circuit when the preset time window starts;

and the second switching module is used for controlling the first antenna to be switched from being connected with the second sending path to being connected with the first sending path by controlling the switching circuit when the preset time window is finished.

In a sixth aspect, the present invention further provides a network side device of a second network, including:

a reference signal receiving module, configured to receive, during a preset time window, a channel sounding reference signal of the second network sent by a terminal through a first antenna; the first antenna is used for receiving signals of the second network, and except for the preset time window, the first antenna is only used for sending signals of the first network;

and the evaluation module is used for evaluating the downlink channel information corresponding to the first antenna according to the channel sounding reference signal based on the channel reciprocity.

Optionally, the network side device further includes:

and the configuration module is used for sending configuration information to the terminal, wherein the configuration information is used for configuring the preset time window or is used for configuring a measurement interval, and the measurement interval comprises the preset time window.

In a seventh aspect, the present invention further provides a terminal, where the terminal includes a first antenna and a second antenna, and the terminal further includes:

and a relative relationship reporting module, configured to report a relative relationship between the first antenna and the second antenna, so that a network side device of a second network obtains downlink channel information corresponding to the first antenna according to the relative relationship and the downlink channel information corresponding to the second antenna.

Optionally, the relative relationship includes at least one of:

a relative antenna angle between the first antenna and the second antenna;

a relative distance between the first antenna and the second antenna;

a phase offset between the first antenna and the second antenna.

In an eighth aspect, the present invention further provides a network side device of a second network, including:

the relative relation receiving module is used for receiving the relative relation between the first antenna and the second antenna reported by the terminal;

and the acquisition module is used for acquiring the downlink channel information corresponding to the first antenna according to the relative relationship and the downlink channel information corresponding to the second antenna.

In a ninth aspect, the present invention further provides a terminal, where the terminal includes a first antenna, and the first antenna is configured to receive a signal of a second network, and the terminal further includes: a transceiver and a processor;

the transceiver is configured to send, through the first antenna, a channel sounding reference signal of the second network during a preset time window, so that a network side device of the second network estimates, based on channel reciprocity, downlink channel information corresponding to the first antenna according to the channel sounding reference signal;

Optionally, the terminal includes a first transmission path for transmitting a signal of the first network, a second transmission path for transmitting a signal of the second network, and a switching circuit;

the processor is configured to control the first antenna to switch from being connected to the first transmission path to being connected to the second transmission path by controlling the switching circuit when the preset time window starts;

the processor is further configured to control the switching circuit to switch the first antenna from being connected to the second transmission path to being connected to the first transmission path when the preset time window is ended.

In a tenth aspect, the present invention further provides a network side device of a second network, including: a transceiver and a processor;

the transceiver is used for receiving the channel sounding reference signal of the second network sent by the terminal through the first antenna during a preset time window; the first antenna is used for receiving signals of the second network, and except for the preset time window, the first antenna is only used for sending signals of the first network;

and the processor is used for evaluating downlink channel information corresponding to the first antenna according to the channel sounding reference signal based on channel reciprocity.

Optionally, the transceiver is further configured to send configuration information to a terminal, where the configuration information is used to configure the preset time window, or is used to configure a measurement interval, and the measurement interval includes the preset time window.

In an eleventh aspect, the present invention further provides a terminal, where the terminal includes a first antenna and a second antenna, and further includes: a transceiver and a processor;

the transceiver is configured to report a relative relationship between the first antenna and the second antenna, so that a network side device of a second network obtains downlink channel information corresponding to the first antenna according to the relative relationship and the downlink channel information corresponding to the second antenna.

Optionally, the relative relationship includes at least one of:

a relative antenna angle between the first antenna and the second antenna;

a relative distance between the first antenna and the second antenna;

a phase offset between the first antenna and the second antenna.

In a twelfth aspect, the present invention further provides a network side device of a second network, including: a transceiver and a processor;

the transceiver is used for receiving the relative relation between the first antenna and the second antenna reported by the terminal;

and the processor is used for acquiring the downlink channel information corresponding to the first antenna according to the relative relationship and the downlink channel information corresponding to the second antenna.

In a thirteenth aspect, the present invention further provides a terminal, including a first antenna, configured to receive signals of a second network, a memory, a processor, and a computer program stored in the memory and executable on the processor; the processor, when executing the computer program, implements the steps of any of the information sending methods provided by the first aspect.

In a fourteenth aspect, the present invention further provides a network-side device of a second network, including a memory, a processor, and a computer program stored in the memory and executable on the processor; the processor implements the steps in any one of the methods for acquiring downlink channel information provided in the second aspect or the fourth aspect when executing the computer program.

In a fifteenth aspect, the present invention further provides a terminal, including a first antenna and a second antenna, further including a memory, a processor, and a computer program stored on the memory and executable on the processor; the processor, when executing the computer program, implements the steps of any of the information transmitting methods provided by the third aspect.

In a sixteenth aspect, the present invention further provides a computer-readable storage medium, on which a computer program is stored, the computer program, when being executed by a processor, implementing the steps in any one of the above-mentioned information transmission methods or implementing the steps in any one of the above-mentioned downlink channel information acquisition methods.

The technical scheme of the invention has the following beneficial effects:

in the embodiment of the invention, the network side equipment of the second network can correctly evaluate the downlink channels of all the antennas receiving the second network signals on the terminal so as to correctly use the information of downlink MCS, RANK and the like, thereby enhancing the downlink performance and improving the downlink throughput. The method is particularly suitable for the double-link terminal, such as the terminal of the NSA network architecture.

Drawings

Fig. 1 is a schematic diagram of an antenna of an NSA network architecture terminal to an NR network;

fig. 2 is a flowchart illustrating an information sending method according to a first embodiment of the present invention;

fig. 3 is a schematic diagram of an antenna of an NSA network architecture terminal to an NR network during a predetermined time window according to an embodiment of the present invention;

fig. 4 is a flowchart illustrating a downlink channel information obtaining method in a second embodiment of the present invention;

fig. 5 is a flowchart illustrating an information sending method according to a third embodiment of the present invention;

fig. 6 is a schematic flowchart of a downlink channel information obtaining method in the fourth embodiment of the present invention;

fig. 7 is a schematic structural diagram of a terminal in a fifth embodiment of the present invention;

fig. 8 is a schematic structural diagram of a network-side device in a sixth embodiment of the present invention;

fig. 9 is a schematic structural diagram of a terminal in a seventh embodiment of the present invention;

fig. 10 is a schematic structural diagram of a network-side device in an eighth embodiment of the present invention;

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

fig. 12 is a schematic structural diagram of a network-side device in a tenth embodiment of the present invention;

fig. 13 is a schematic structural diagram of a terminal in an eleventh embodiment of the present invention;

fig. 14 is a schematic structural diagram of a network-side device in a twelfth embodiment of the present invention;

fig. 15 is a schematic structural diagram of a terminal in a thirteenth embodiment of the present invention;

fig. 16 is a schematic structural diagram of a network-side device in a fourteenth embodiment of the present invention;

fig. 17 is a schematic structural diagram of a terminal in fifteenth embodiment of the present invention;

fig. 18 is a schematic structural diagram of a network-side device in a sixteenth embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.

The 5GNR uses a Time Division multiplexing (TDD) mechanism, and the uplink and downlink use the same frequency point, so that the uplink and downlink channels have reciprocity, and the network side can be used as reference information of the downlink channel by evaluating the uplink signal. Referring to fig. 1, for an NR network, a terminal of an NSA network architecture is 1 transmit/receive (4 receive) (another uplink antenna can only be used for transmitting to LTE), a Reference Signal for channel Sounding (SRS) can only be transmitted alternately (alternatively) through a MAIN antenna and a DIV antenna in fig. 1, and a MIMO1 antenna and a MIMO2 antenna can be used for NR reception but cannot be used for NR transmission, so that a network side can only receive uplink SRS from antenna ports corresponding to RX1 and RX2, and according to network reciprocity, the network side can only perform downlink channel estimation on antenna ports corresponding to RX1 and RX2, and cannot accurately estimate downlink channels corresponding to RX3 and RX 4.

Referring to fig. 2, fig. 2 is a flowchart illustrating an information sending method according to an embodiment of the present invention, where the method is applied to a terminal, where the terminal includes a first antenna, and the first antenna is used to receive a signal of a second network, and the method includes the following steps:

step 21: the terminal sends a channel sounding reference signal of the second network through the first antenna during a preset time window, so that network side equipment of the second network evaluates downlink channel information corresponding to the first antenna according to the channel sounding reference signal based on channel reciprocity;

Wherein the channel sounding reference signal may be an SRS. The downlink channel information is downlink channel information for the second network.

The embodiment of the invention provides a semi-static antenna channel sounding reference signal transmitting mechanism, which is characterized in that a first antenna used for transmitting a signal of a first network is controlled through a preset time window, and a channel sounding reference signal of a second network is transmitted in the preset time window, so that network side equipment of the second network can estimate downlink channel information corresponding to the first antenna according to the channel sounding reference signal based on channel reciprocity, and therefore the network side equipment of the second network can correctly estimate downlink channels of all antennas receiving the second network signal on a terminal, correctly use information such as a downlink Modulation and Coding Scheme (MCS), a RANK (RANK) and the like, and further enhance downlink performance and improve downlink throughput.

It should be noted that the embodiment of the present invention may be applied to not only a terminal of an NSA network architecture but also other dual-link terminals. The first network may be LTE or another network, and the second network may be NR or another network, but the frequency points of the first network and the second network are different.

In addition, when the terminal sends the channel sounding reference signal of the second network through the first antenna during the preset time window, uplink synchronization needs to be performed, but for a dual-link terminal, uplink synchronization is already achieved.

Specifically, when the terminal transmits the channel sounding reference signal of the second network through the first antenna, the terminal needs to transmit the channel sounding reference signal on the pre-allocated uplink resource.

In an optional specific embodiment, the terminal includes a first transmission path for transmitting a signal of the first network, a second transmission path for transmitting a signal of the second network, and a switching circuit; the information sending method further comprises the following steps:

For example, referring to fig. 3, during a preset time window, the terminal transmits 2-transmission 4-reception (substantially the same as an SA network architecture terminal antenna) to the second network, and the terminal may transmit the channel sounding reference signal of the second network through MAIN, DIV, MIMO1 and MIMO2 antennas, that is, the network side device of the second network may receive the uplink channel sounding reference signals of the antenna ports corresponding to RX1, RX2, RX3 and RX4, and according to the TDD network reciprocity, the network side device may perform downlink channel estimation on the antenna ports corresponding to RX1, RX2, RX3 and RX 35 4. And the 4-day reel hair and the 2-day reel hair are compared through an external field, so that the 4-day reel hair is obviously enhanced. The problem that the downlink performance of the NSA network architecture terminal to a second Network (NR) is lower than that of the SA network architecture terminal due to the fact that downlink channels of the other two antennas cannot be accurately evaluated because the NSA network architecture terminal can only transmit channel sounding reference signals in turn at a part of antennas is solved.

That is, the conventional NSA terminal can only perform uplink channel sounding reference signal transmission alternatively because the NR is not connected to another uplink antenna (for LTE uplink transmission) all the time. The embodiment of the invention can control the antenna used for LTE uplink transmission to transmit the SRS on the frequency point of the NR in the period of the preset time window, so that the NR network side equipment has channel information of the other two downlink antennas, thereby realizing the effect similar to two-out-of-four. Of course, it is impossible to be completely the same as the SA network architecture terminal, after all, the SA network architecture terminal has SRS on each uplink, the NSA terminal has SRS on one uplink antenna on each uplink, and the other antenna has SRS only in the preset time window period.

Referring to fig. 4, fig. 4 is a flowchart illustrating a method for acquiring downlink channel information according to a second embodiment of the present invention, where the method is applied to a network side device of a second network, and includes the following steps:

step 41: the network side equipment receives a channel sounding reference signal of the second network, which is sent by a terminal through a first antenna, during a preset time window; the first antenna is used for receiving signals of the second network, and except for the preset time window, the first antenna is only used for sending signals of the first network;

step 42: and the network side equipment evaluates the downlink channel information corresponding to the first antenna according to the channel sounding reference signal based on the channel reciprocity.

In the embodiment of the present invention, the network side device of the second network may receive a channel sounding reference signal of the second network, which is sent by a first antenna of a terminal during a preset time window, where the first antenna is outside the preset time window and is only used for sending a signal of the first network, but can receive a signal of the second network, and then the network side device may evaluate downlink channel information corresponding to the first antenna according to the channel sounding reference signal based on channel reciprocity, so that the network side device of the second network may correctly evaluate downlink channels of all antennas receiving the second network signal on the terminal, so as to correctly use information such as downlink MCS, RANK, and the like, thereby enhancing downlink performance and improving downlink throughput.

It should be noted that the first network may be LTE or another network, and the second network may be NR or another network, but the frequency points of the first network and the second network are different. In addition, the terminal may be a terminal of an NSA network architecture, or may be another dual-link terminal.

Optionally, the method further includes:

That is, the network side device may configure a time window dedicated for transmitting the uplink channel sounding reference signal, and may also configure a longer measurement interval, where the measurement interval is not only used for measurement but also used for transmitting the uplink channel sounding reference signal. Specifically, the measurement interval includes not only a downlink time slot but also an uplink time slot, where the downlink time slot is used for measurement and the uplink time slot is used for sending an uplink channel sounding reference signal.

The embodiments of the present invention provide technical solutions corresponding to the above embodiments and having the same inventive concept, and can achieve the same technical effects.

Referring to fig. 5, fig. 5 is a schematic flow chart of an information sending method according to a third embodiment of the present invention, where the method is applied to a terminal, where the terminal includes a first antenna and a second antenna, and the method includes the following steps:

step 51: and the terminal reports the relative relationship between the first antenna and the second antenna so that the network side equipment of the second network acquires the downlink channel information corresponding to the first antenna according to the relative relationship and the downlink channel information corresponding to the second antenna.

The embodiment of the present invention provides a static antenna logical relationship reporting mechanism, which reports a relative relationship between a first antenna and a second antenna, so that after a network side device of a second network acquires downlink channel information corresponding to the second antenna, the network side device may acquire the downlink channel information corresponding to the first antenna according to the relative relationship and the downlink channel information corresponding to the second antenna. Therefore, the network side equipment of the second network can correctly evaluate downlink channels of all antennas receiving the second network signals on the terminal so as to correctly use information such as downlink MCS, RANK and the like, thereby enhancing downlink performance and improving downlink throughput.

It should be noted that the second network may be an NR or other networks. The downlink channel information is downlink channel information for the second network.

The above-described information transmission method is exemplified below.

Optionally, the terminal may report the relative relationship when reporting the terminal capability. That is, the relative relationship may be carried in information for reporting the terminal capability.

Optionally, the first antenna is configured to receive signals of the second network, and can only be configured to transmit signals of the first network; the second antenna is used for receiving and transmitting signals of the second network. Of course, the first antenna may also be used to receive signals of the first network.

Specifically, the terminal may be a terminal of an NSA network architecture, or may be another dual-link terminal. The first network may be LTE or another network, and the second network may be NR or another network.

Optionally, the relative relationship includes at least one of:

a relative antenna angle between the first antenna and the second antenna;

a relative distance between the first antenna and the second antenna;

a phase offset between the first antenna and the second antenna.

For example, for a terminal having the antenna structure shown in fig. 1 (a partial structure for LTE transmission is not shown in the figure) or a terminal having the antenna structure shown in fig. 2, the relative relationship includes at least one of:

RX3 (corresponding) antenna and RX4 (corresponding) antenna are respectively relative antenna angles to RX1 (corresponding) antenna or RX2 (corresponding) antenna;

RX3 (corresponding) antenna and RX4 (corresponding) antenna relative distances from RX1 (corresponding) antenna or RX2 (corresponding) antenna, respectively;

RX3 (corresponding) antenna and RX4 (corresponding) antenna are phase offset from RX1 (corresponding) antenna or RX2 (corresponding) antenna, respectively.

Specifically, the terminal may report at least one of a relative antenna angle, a relative distance, and a phase offset between an RX3 antenna and an RX1 antenna, so that after acquiring the downlink channel information corresponding to the RX1 antenna, the network side device of the second network may acquire the downlink channel information corresponding to the RX3 antenna according to at least one of a relative antenna angle, a relative distance, and a phase offset between an RX3 antenna and an RX1 antenna. Or the terminal may report at least one of a relative antenna angle, a relative distance, and a phase offset between the RX3 antenna and the RX2 antenna, so that after the network-side device of the second network acquires the downlink channel information corresponding to the RX2 antenna, the network-side device of the second network may acquire the downlink channel information corresponding to the RX3 antenna according to at least one of a relative antenna angle, a relative distance, and a phase offset between the RX3 antenna and the RX2 antenna. In addition, the terminal may report at least one of a relative antenna angle, a relative distance, and a phase offset between the RX4 antenna and the RX1 antenna, so that after the network-side device of the second network acquires the downlink channel information corresponding to the RX1 antenna, the network-side device of the second network may acquire the downlink channel information corresponding to the RX4 antenna according to at least one of the relative antenna angle, the relative distance, and the phase offset between the RX4 antenna and the RX1 antenna. Or the terminal may report at least one of a relative antenna angle, a relative distance, and a phase offset between the RX4 antenna and the RX2 antenna, so that after the network-side device of the second network acquires the downlink channel information corresponding to the RX2 antenna, the network-side device of the second network may acquire the downlink channel information corresponding to the RX4 antenna according to at least one of a relative antenna angle, a relative distance, and a phase offset between the RX4 antenna and the RX2 antenna.

Referring to fig. 6, fig. 6 is a schematic flowchart of a downlink channel information obtaining method according to a fourth embodiment of the present invention, where the method is applied to a network side device of a second network, and includes the following steps:

step 61: the network side equipment receives the relative relation between the first antenna and the second antenna reported by the terminal;

step 62: and the network side equipment acquires the downlink channel information corresponding to the first antenna according to the relative relationship and the downlink channel information corresponding to the second antenna.

In addition, after the network side device of the second network calculates the downlink channel information corresponding to the first antenna, the network side device may schedule the terminal according to the downlink channel information corresponding to the first antenna and the downlink channel information corresponding to the second antenna.

In the embodiment of the present invention, a network side device of a second network may receive a relative relationship between a first antenna and a second antenna reported by a terminal, and may obtain downlink channel information corresponding to the first antenna according to the relative relationship and the downlink channel information corresponding to the second antenna after obtaining the downlink channel information corresponding to the second antenna. Therefore, the network side equipment of the second network can correctly evaluate downlink channels of all antennas receiving the second network signals on the terminal so as to correctly use information such as downlink MCS, RANK and the like, thereby enhancing downlink performance and improving downlink throughput.

Specifically, the network side device of the second network receives a channel sounding reference signal (for example, SRS) of the second network, which is sent by a terminal through a second antenna, and then estimates downlink channel information corresponding to the second antenna according to the channel sounding reference signal.

Optionally, the relative relationship includes at least one of:

a relative antenna angle between the first antenna and the second antenna;

a relative distance between the first antenna and the second antenna;

a phase offset between the first antenna and the second antenna.

The embodiments of the present invention provide technical solutions corresponding to the third embodiment and having the same inventive concept, and can achieve the same technical effects, and reference may be made to the third embodiment in detail, which is not described herein again.

Referring to fig. 7, fig. 7 is a schematic structural diagram of a terminal according to a fifth embodiment of the present invention, where the terminal 70 includes a first antenna, and the first antenna is configured to receive a signal of a second network, and further includes:

a reference signal sending module 71, configured to send, through the first antenna, a channel sounding reference signal of the second network during a preset time window, so that a network side device of the second network estimates, based on channel reciprocity, downlink channel information corresponding to the first antenna according to the channel sounding reference signal;

In the terminal in the embodiment of the present invention, the first antenna for transmitting the signal of the first network transmits the channel sounding reference signal of the second network within a preset time window, so that the network side device of the second network can estimate, based on channel reciprocity, downlink channel information corresponding to the first antenna according to the channel sounding reference signal, and thus the network side device of the second network can correctly estimate downlink channels of all antennas receiving the second network signal at the terminal, so as to correctly use information such as a downlink Modulation and Coding Scheme (MCS), RANK, and the like, thereby enhancing downlink performance and improving downlink throughput.

The embodiment of the present invention is a product embodiment corresponding to the above method embodiment, and therefore, detailed description is omitted here, and please refer to the first embodiment in detail.

Referring to fig. 8, fig. 8 is a schematic structural diagram of a network-side device of a second network according to a sixth embodiment of the present invention, where the network-side device 80 includes:

a reference signal receiving module 81, configured to receive, during a preset time window, a channel sounding reference signal of the second network sent by a terminal through a first antenna; the first antenna is used for receiving signals of the second network, and except for the preset time window, the first antenna is only used for sending signals of the first network;

and the evaluation module 82 is configured to evaluate, based on channel reciprocity, downlink channel information corresponding to the first antenna according to the channel sounding reference signal.

Optionally, the network side device further includes:

The embodiment of the present invention is a product embodiment corresponding to the above method embodiment, and therefore, detailed description is omitted here, and please refer to the second embodiment.

Referring to fig. 9, fig. 9 is a schematic structural diagram of a terminal according to a seventh embodiment of the present invention, where the terminal 90 includes a first antenna and a second antenna, and further includes:

a relative relationship reporting module 91, configured to report a relative relationship between the first antenna and the second antenna, so that a network side device of a second network obtains downlink channel information corresponding to the first antenna according to the relative relationship and the downlink channel information corresponding to the second antenna.

The terminal in the embodiment of the present invention reports the relative relationship between the first antenna and the second antenna, so that after acquiring the downlink channel information corresponding to the second antenna, a network side device of a second network may acquire the downlink channel information corresponding to the first antenna according to the relative relationship and the downlink channel information corresponding to the second antenna. Therefore, the network side equipment of the second network can correctly evaluate downlink channels of all antennas receiving the second network signals on the terminal so as to correctly use information such as downlink MCS, RANK and the like, thereby enhancing downlink performance and improving downlink throughput.

Optionally, the relative relationship includes at least one of:

a relative antenna angle between the first antenna and the second antenna;

a relative distance between the first antenna and the second antenna;

a phase offset between the first antenna and the second antenna.

The embodiment of the present invention is a product embodiment corresponding to the third embodiment of the method, and therefore, detailed description is omitted here, and please refer to the third embodiment.

Referring to fig. 10, fig. 10 is a schematic structural diagram of a network-side device of a second network according to an eighth embodiment of the present invention, where the network-side device 100 includes:

a relative relationship receiving module 101, configured to receive a relative relationship between a first antenna and a second antenna reported by a terminal;

an obtaining module 102, configured to obtain downlink channel information corresponding to the first antenna according to the relative relationship and the downlink channel information corresponding to the second antenna.

The embodiment of the present invention is a product embodiment corresponding to the fourth embodiment of the method, and therefore, details are not repeated here, and please refer to the fourth embodiment in detail.

Referring to fig. 11, fig. 11 is a schematic structural diagram of a terminal according to a ninth embodiment of the present invention, where the terminal 110 includes a first antenna 113, and the first antenna 113 is configured to receive a signal of a second network, and further includes: a transceiver 111 and a processor 112;

the transceiver 111 is configured to send, during a preset time window, a channel sounding reference signal of the second network through the first antenna 113, so that a network side device of the second network estimates, based on channel reciprocity, downlink channel information corresponding to the first antenna 113 according to the channel sounding reference signal;

wherein, except for the preset time window, the first antenna 113 is only used for transmitting signals of the first network.

the processor 112 is configured to control the first antenna 113 to switch from being connected to the first transmission path to being connected to the second transmission path by controlling the switching circuit when the preset time window starts;

the processor 112 is further configured to control the switching circuit to switch the first antenna 113 from being connected to the second transmission path to being connected to the first transmission path when the preset time window is over.

Referring to fig. 12, fig. 12 is a schematic structural diagram of a network-side device of a second network according to a tenth embodiment of the present invention, where the network-side device 120 includes: a transceiver 121 and a processor 122;

the transceiver 121 is configured to receive, during a preset time window, a channel sounding reference signal of the second network sent by a terminal through a first antenna; the first antenna is used for receiving signals of the second network, and except for the preset time window, the first antenna is only used for sending signals of the first network;

the processor 122 is configured to estimate, based on channel reciprocity, downlink channel information corresponding to the first antenna according to the channel sounding reference signal.

Optionally, the transceiver 121 is further configured to send configuration information to a terminal, where the configuration information is used to configure the preset time window, or is used to configure a measurement interval, where the measurement interval includes the preset time window.

Referring to fig. 13, fig. 13 is a schematic structural diagram of a terminal according to an eleventh embodiment of the present invention, where the terminal 130 includes a first antenna 133 and a second antenna 134, and further includes: a transceiver 131 and a processor 132;

the transceiver 131 is configured to report a relative relationship between the first antenna 133 and the second antenna 134, so that a network side device of a second network obtains downlink channel information corresponding to the first antenna 133 according to the relative relationship and the downlink channel information corresponding to the second antenna 134.

Optionally, the first antenna 133 is configured to receive the signal of the second network, and can only be used to transmit the signal of the first network; the second antenna 134 is used for transceiving signals of the second network.

Optionally, the relative relationship includes at least one of:

a relative antenna angle between the first antenna 133 and the second antenna 134;

the relative distance between the first antenna 133 and the second antenna 134;

a phase offset between the first antenna 133 and the second antenna 134.

Referring to fig. 14, fig. 14 is a schematic structural diagram of a network-side device of a second network according to a twelfth embodiment of the present invention, where the network-side device 140 includes: a transceiver 141 and a processor 142;

the transceiver 141 is configured to receive a relative relationship between the first antenna and the second antenna reported by the terminal;

the processor 142 is configured to obtain downlink channel information corresponding to the first antenna according to the relative relationship and the downlink channel information corresponding to the second antenna.

Referring to fig. 15, fig. 15 is a schematic structural diagram of a terminal according to a thirteenth embodiment of the present invention, where the terminal 150 includes a first antenna 153, the first antenna 153 is used for receiving signals of a second network, and further includes a processor 151, a memory 152, and a computer program stored in the memory 152 and capable of being executed on the processor 151; the processor 151, when executing the computer program, implements the steps of:

during a preset time window, sending a channel sounding reference signal of the second network through the first antenna 153, so that a network side device of the second network estimates downlink channel information corresponding to the first antenna 153 according to the channel sounding reference signal based on channel reciprocity;

wherein, except for the preset time window, the first antenna 153 is only used for transmitting signals of the first network.

Optionally, the terminal includes a first transmission path for transmitting a signal of the first network, a second transmission path for transmitting a signal of the second network, and a switching circuit; the processor 151, when executing the computer program, may further implement the steps of:

when the preset time window starts, the first antenna 153 is controlled to be switched from being connected with the first transmission path to being connected with the second transmission path by controlling the switching circuit;

when the preset time window is over, the first antenna 153 is controlled to switch from being connected with the second transmission path to being connected with the first transmission path by controlling the switching circuit.

The specific working process of the embodiment of the present invention is the same as that of the first embodiment of the method, and therefore, detailed description is not repeated here, and please refer to the description of the method steps in the first embodiment.

Referring to fig. 16, fig. 16 is a schematic structural diagram of a network-side device of a second network according to a fourteenth embodiment of the present invention, where the network-side device 160 includes a processor 161, a memory 162, and a computer program stored in the memory 162 and capable of running on the processor 161; the processor 161, when executing the computer program, implements the steps of:

Optionally, the processor 161 may further implement the following steps when executing the computer program:

The specific working process of the embodiment of the present invention is the same as that of the second embodiment of the method, and therefore, the detailed description thereof is omitted, and refer to the description of the method steps in the second embodiment.

Referring to fig. 17, fig. 17 is a schematic structural diagram of a terminal according to a fifteenth embodiment of the present invention, where the terminal 150 includes a first antenna 153 and a second antenna 154, and further includes a processor 151, a memory 152, and a computer program stored in the memory 152 and capable of running on the processor 151; the processor 151, when executing the computer program, implements the steps of:

reporting the relative relationship between the first antenna 153 and the second antenna 154, so that the network side device of the second network obtains the downlink channel information corresponding to the first antenna 153 according to the relative relationship and the downlink channel information corresponding to the second antenna 154.

Optionally, the first antenna 153 is configured to receive signals of the second network, and can only be used to transmit signals of the first network; the second antenna 154 is used for transceiving signals of the second network.

Optionally, the relative relationship includes at least one of:

a relative antenna angle between the first antenna 153 and the second antenna 154;

the relative distance between the first antenna 153 and the second antenna 154;

a phase offset between the first antenna 153 and the second antenna 154.

The specific working process of the embodiment of the present invention is the same as that of the third embodiment of the method, and therefore, the detailed description thereof is omitted, and please refer to the description of the method steps in the third embodiment.

Referring to fig. 18, fig. 18 is a schematic structural diagram of a network-side device of a second network according to a sixteenth embodiment of the present invention, where the network-side device 180 includes a processor 181, a memory 182, and a computer program stored in the memory 182 and capable of running on the processor 181; the processor 181, when executing the computer program, implements the following steps:

The specific working process of the embodiment of the present invention is the same as that of the fourth embodiment of the method, and therefore, the detailed description thereof is omitted, and please refer to the description of the method steps in the fourth embodiment.

A seventeenth embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the method for sending information in the first embodiment or the third embodiment is implemented, or the method for obtaining downlink channel information in the second embodiment or the fourth embodiment is implemented. Please refer to the above description of the method steps in the corresponding embodiments.

The network side device in the embodiment of the present invention may be a Base Transceiver Station (BTS) in Global System for Mobile communication (GSM) or Code Division Multiple Access (CDMA), may also be a Base Station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), may also be an evolved Node B (evolved Node B, eNB or eNodeB) in LTE, or a relay Station or Access point, or a Base Station in a future 5G network, and the like, which is not limited herein.

A terminal in embodiments of the present invention may be a wireless terminal, which may be a device that provides voice and/or other traffic data connectivity to a user, a handheld device having wireless connection capability, or other processing device connected to a wireless modem. A wireless terminal, which may be a mobile terminal such as a mobile telephone (or "cellular" telephone) and a computer having a mobile terminal, e.g., a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device, may communicate with one or more core networks via a Radio Access Network (RAN), and may exchange language and/or data with the RAN. For example, devices such as Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs) are used. 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 Terminal (User Device or User Equipment), which are not limited herein.

The computer-readable storage media described above, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device.

While the foregoing is directed to the preferred embodiment of the present invention, 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 appended claims.

Claims

1. An information sending method is applied to a terminal, the terminal comprises a first antenna, and the first antenna is used for receiving signals of a second network, and the method is characterized by comprising the following steps:

2. The method of claim 1, wherein the terminal comprises a first transmission path for transmitting signals of the first network, a second transmission path for transmitting signals of the second network, and a switching circuit; the information sending method further comprises the following steps:

3. A downlink channel information acquisition method is applied to network side equipment of a second network, and is characterized by comprising the following steps:

4. The method of claim 3, further comprising:

5. An information sending method is applied to a terminal, wherein the terminal comprises a first antenna and a second antenna, and the method is characterized by comprising the following steps:

6. The method of claim 5, wherein the first antenna is configured to receive signals from the second network and is configured to transmit signals from only the first network; the second antenna is used for receiving and transmitting signals of the second network.

7. The method of claim 5 or 6, wherein the relative relationship comprises at least one of:

a relative antenna angle between the first antenna and the second antenna;

a relative distance between the first antenna and the second antenna;

a phase offset between the first antenna and the second antenna.

8. A downlink channel information acquisition method is applied to network side equipment of a second network, and is characterized by comprising the following steps:

9. The method of claim 8, wherein the downlink channel information corresponding to the second antenna is estimated according to a channel sounding reference signal sent by the second antenna.

10. A terminal, the terminal comprising a first antenna configured to receive signals of a second network, the terminal further comprising:

11. A network-side device of a second network, comprising:

12. A terminal, the terminal comprising a first antenna and a second antenna, the terminal further comprising:

13. A network-side device of a second network, comprising:

14. A terminal, the terminal comprising a first antenna configured to receive signals of a second network, the terminal further comprising: a transceiver and a processor;

15. A network-side device of a second network, comprising: a transceiver and a processor;

16. A terminal, the terminal comprising a first antenna and a second antenna, the terminal further comprising: a transceiver and a processor;

17. A network-side device of a second network, comprising: a transceiver and a processor;

18. A terminal comprising a first antenna for receiving signals of a second network, further comprising a memory, a processor and a computer program stored on the memory and executable on the processor; characterized in that the processor implements the steps in the method for information transmission according to claim 1 or 2 when executing the computer program.

19. A network side device of a second network, comprising a memory, a processor and a computer program stored on the memory and executable on the processor; characterized in that the processor implements the steps in the method for acquiring downlink channel information according to claim 3 or 4 or 8 or 9 when executing the computer program.

20. A terminal comprising a first antenna and a second antenna, further comprising a memory, a processor and a computer program stored on the memory and executable on the processor; characterized in that the processor implements the steps in the method for transmitting information according to any of claims 5-7 when executing the computer program.

21. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the steps in the information transmitting method according to any one of claims 1-2, 5-7 or implements the steps in the downlink channel information acquiring method according to any one of claims 3-4, 8-9.