CN109217881B

CN109217881B - Transmitting antenna switching method, base station and terminal

Info

Publication number: CN109217881B
Application number: CN201710525993.8A
Authority: CN
Inventors: 杨宇; 秦飞; 黄奂衢; 王柏钢
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2017-06-30
Filing date: 2017-06-30
Publication date: 2021-07-30
Anticipated expiration: 2037-06-30
Also published as: CN109217881A

Abstract

The embodiment of the invention relates to a transmitting antenna switching method, a base station and a terminal, wherein the method comprises the following steps: when a plurality of antennas of a terminal receive downlink signals, acquiring a first difference value of measurement values of the received downlink signals among the antennas; if the first difference value meets a first preset condition, sending first reporting information to the base station; acquiring a first notification message sent by a base station according to first reported information, wherein the first notification message is used for notifying a terminal to adjust the current uplink transmission mode of an antenna; and determining a transmitting antenna, and performing uplink transmission by using the determined transmitting antenna. The method and the device solve the problem that in the open-loop antenna selection process, when a certain antenna is blocked by hand holding and the like, the antenna continues uplink transmission and cannot be successfully received by a base station, and further the system performance is influenced, and simultaneously solve the problem that in the closed-loop antenna selection process, the base station needs to select the same antenna as a transmitting antenna through a downlink control signaling indication terminal within a period of time, so that the downlink control signaling overhead is increased.

Description

Transmitting antenna switching method, base station and terminal

Technical Field

The embodiment of the invention relates to the technical field of communication, in particular to a transmitting antenna switching method, a base station and a terminal.

Background

For open-loop antenna selection, in a TDD (time division duplex) system, a base station may perform channel estimation on an uplink reference signal by using reciprocity of uplink and downlink channels, thereby obtaining downlink channel information. Wherein the uplink reference signal may be an SRS (channel sounding reference signal). If the base station needs to obtain complete channel information, the antennas are required to transmit reference signals in turn for the base station to perform channel estimation. When the terminal automatically judges that the blocking phenomena such as holding and the like occur according to the power difference of the received signals of the two antennas, the received power of one antenna is too low. If the terminal does not switch the transmitting antenna, but still keeps transmitting the two antenna streams, regardless of the hand-held phenomenon, etc., then the channel information corresponding to the hand-held antenna in the channel estimation result obtained by the base station may be very inaccurate. This will cause errors in the base station's calculation of the rank of the channel and also error-prone in precoding the selection codebook, thus degrading system performance.

For closed-loop antenna selection, the base station indicates the selected uplink transmit antenna through downlink control signaling. If the terminal finds that a certain antenna has a hand-holding phenomenon according to the measured values of the received powers of the two antennas, the terminal needs to switch to the antenna with higher received power for uplink transmission in order to keep the uplink uninterrupted. At this time, the base station cannot measure the reference signal powers from the two terminal antennas, and therefore cannot correctly determine how to indicate the selection of the transmitting antenna of the terminal, and the base station may indicate the transmitting antenna of the same terminal through the downlink control signaling within a period of time, which leads to an increase in the overhead of the downlink control signaling.

Disclosure of Invention

The embodiment of the invention provides a transmitting antenna switching method, a base station and a terminal, which aim to solve the problem that in the open-loop antenna selection process, when a certain antenna has the blocking phenomenon such as hand holding, the antenna continues to transmit uplink and cannot be successfully received by the base station, so that the system performance is influenced, and simultaneously can also solve the problem that in the closed-loop antenna selection process, the base station needs to instruct the terminal to select the same antenna as a transmitting antenna through downlink control signaling within a period of time, so that the downlink control signaling overhead is increased.

In a first aspect, a method for switching transmit antennas is provided, which is applied to a terminal and includes:

when a plurality of antennas of the terminal receive downlink signals, acquiring a first difference value of measurement values of the downlink signals received among the antennas;

if the first difference value meets a first preset condition, sending first reporting information to a base station;

acquiring a first notification message sent by the base station according to the first reporting information, wherein the first notification message is used for notifying a terminal to adjust a current uplink transmission mode of an antenna;

and determining a transmitting antenna, and performing uplink transmission by using the determined transmitting antenna.

In a second aspect, a transmit antenna switching method is further provided, which is applied to a base station, and includes:

when a first difference value of measurement values of received downlink signals between terminal antennas meets a first preset condition, acquiring first reporting information sent by a terminal;

and sending a first notification message to the terminal according to the first reporting information, wherein the first notification message is used for notifying the terminal to adjust the current uplink transmission mode of the antenna.

In a third aspect, a terminal is further provided, including:

a first obtaining module, configured to obtain, when multiple antennas of the terminal receive downlink signals, a first difference between measured values of the antennas for receiving the downlink signals;

a first sending module, configured to send first reporting information to the base station if the first difference meets a first preset condition;

a second obtaining module, configured to obtain a first notification message sent by the base station according to the first reporting information, where the first notification message is used to notify a terminal to adjust a current uplink transmission mode of an antenna;

and the second sending module is used for determining a transmitting antenna and utilizing the determined transmitting antenna to perform uplink transmission.

In a fourth aspect, there is also provided a base station, including:

a fifth obtaining module, configured to obtain first reporting information sent by the terminal when a first difference between measured values of downlink signals received between antennas of the terminal meets a first preset condition;

a sixth sending module, configured to send a first notification message to the terminal according to the first reporting information, where the first notification message is used to notify the terminal to adjust a current uplink transmission mode of an antenna.

In a fifth aspect, a terminal is further provided, which includes a processor, a memory, and a computer program stored on the memory and executable on the processor, and when executed by the processor, the computer program implements the steps of the transmit antenna switching method as described above.

In a sixth aspect, there is also provided a base station comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the transmit antenna switching method as described above.

In a seventh aspect, a computer-readable storage medium is also provided, on which a computer program is stored, which, when being executed by a processor, implements the steps of the transmit antenna switching method as described above.

Therefore, in the embodiment of the invention, when the antenna is blocked by hand holding and the like, the base station can inform the terminal of adjusting the current uplink transmission mode of the antenna in time, and the terminal utilizes the determined transmitting antenna to carry out uplink transmission, so that the problem that in the selection process of the open-loop antenna, when a certain antenna is blocked by hand holding and the like, the antenna continues uplink transmission and cannot be successfully received by the base station, and the system performance is further influenced is solved. In addition, in this embodiment, the terminal may determine a preset antenna as the transmitting antenna, or the terminal determines the transmitting antenna by itself, so as to avoid a problem that a base station needs to instruct the terminal to select the same antenna as the transmitting antenna through a downlink control signaling within a period of time in the process of selecting the closed-loop antenna, which results in an increase of downlink control signaling overhead.

Moreover, when the phenomenon that the antenna is blocked by hand holding and the like disappears, the uplink transmission mode can be timely adjusted, for example, the previous transmission mode is recovered, and the system performance is ensured.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a flowchart of a method for switching transmitting antennas at a terminal according to an embodiment of the present invention;

fig. 2 is a flowchart of a method for switching transmitting antennas at a terminal according to another embodiment of the present invention;

fig. 3 is a flowchart of a terminal-side transmit antenna switching method according to another embodiment of the present invention;

fig. 4 is a flowchart of a method for switching transmitting antennas at a base station side according to an embodiment of the present invention;

fig. 5 is a flowchart of a transmit antenna switching method at the base station side according to another embodiment of the present invention;

fig. 6 is a flowchart of a method for switching transmitting antennas at a base station according to another embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a dual-antenna panel;

fig. 8 is a schematic diagram of an antenna array structure based on an antenna panel;

fig. 9 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a base station according to an embodiment of the present invention;

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

fig. 12 is a schematic structural diagram of a base station according to another embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. 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 invention.

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

In this embodiment, the Base Station may be a Base Transceiver Station (BTS) in Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), a Base Station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), an evolved Node B (eNB or eNodeB) in LTE, a Base Station in New radio Access technology (New RAT or NR), a relay Station or Access point, or a Base Station in a future 5G network, and the like, which is not limited herein.

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

Referring to fig. 1, a flow of a transmit antenna switching method according to an embodiment is shown, where an execution main body of the method may be a terminal, and the method includes the following specific steps:

step 101, when a plurality of antennas of a terminal receive downlink signals, acquiring a first difference value of measurement values of the received downlink signals among the antennas;

the antenna may be any one of: a physical antenna, an antenna port, and an antenna panel. The following means among the antennas: between physical antennas, between antenna ports, or between antenna panels. For future 5G terminals, the high-band antenna is usually arranged in the form of an antenna panel, for example two antenna panels.

Optionally, the downlink signal may be a downlink reference signal or a downlink channel, for example: a Signal such as a CRS (Cell Reference Signal), a CSI-RS (channel state information Reference Signal), a DMRS (demodulation Reference Signal), and an SS (synchronization Signal), or a channel such as a PDCCH (physical downlink control channel) and a PDSCH (physical downlink shared channel).

Alternatively, the measurement value may be RSRP (reference signal received power) or RSSI (received signal strength indicator) or the like.

In this embodiment, if the antenna is an antenna panel, the measurement value of each antenna panel may be a measurement value of the antenna panel with a receive beam forming gain, and the receive beam may be an optimal receive beam found through beam training or an optimal measurement value obtained by traversing all possible receive beams during measurement. The measurements for each antenna panel may also be measurements of the antenna panel without receive beamforming gain.

Step 102, if the first difference value meets a first preset condition, sending first reporting information to a base station;

in this embodiment, if the first difference satisfies the first preset condition, it indicates that at least some antennas of the multiple antennas of the terminal are blocked by being held by a hand, and at this time, the reporting of the terminal is triggered.

Optionally, in this embodiment, the first preset condition includes any one of:

within a first preset time period, a first difference value of the measured values of the downlink signals received between the antennas is greater than or equal to a first preset threshold value;

in a first preset time period, the statistical average value of a first difference value of the measured values of the downlink signals received between the antennas is greater than or equal to a first preset threshold value;

a first difference value of the measured values of the downlink signals received between the antennas is greater than or equal to a first preset threshold value;

and in a first preset time period, the change rate of a first difference value of the measured values of the downlink signals received between the antennas is greater than or equal to a first preset threshold value.

In this embodiment, the first preset time period and the first preset threshold may be configured by the network side, or determined by the terminal, and it should be noted that specific values of the first preset time period and the first preset threshold are not specifically limited.

Optionally, in this embodiment, the first reporting information includes one or more of the following items: the first difference value, the statistical average value of the first difference values, or the variation rate of the first difference value, which satisfies the first preset condition, may be a quantized difference value or a non-quantized difference value; a transmitting antenna recommended to be used by the terminal; a transmitting antenna which is not recommended to be used by the terminal; and an uplink transmission mode (e.g., a transmit antenna selection mode or an uplink transmit diversity mode or an uplink spatial multiplexing mode) recommended by the terminal.

In this step, the terminal may send the first reporting information to the base station in the following manner: reporting first reporting information to the base station through the reserved uplink resources; or reporting the first reporting information to the base station through uplink resources configured by a high layer; or reporting the first reporting information to the base station through an uplink resource indicated by Downlink Control Information (DCI); or, the first reporting information is carried in a channel state information report (CSI report) and sent to the base station.

Step 103, acquiring a first notification message sent by the base station according to the first report information, where the first notification message is used to notify a terminal to adjust a current uplink transmission mode of an antenna;

for example, the first notification message includes first indication information, where the first indication information is used to notify the terminal to turn off a current uplink transmission mode of an antenna, and the terminal determines the transmitting antenna by itself.

Another example is: the first notification message also includes information about the base station designated transmit antenna.

And step 104, determining a transmitting antenna, and performing uplink transmission by using the determined transmitting antenna.

For example, the terminal determines a preset antenna as a transmitting antenna, and performs uplink transmission by using the preset antenna, for example, by agreeing in advance to the transmitting antenna through a protocol; or, the terminal determines the transmitting antenna specified by the base station carried in the first notification message as the transmitting antenna, and performs uplink transmission by using the transmitting antenna specified by the base station; or, the transmitting antenna is determined by itself, and uplink transmission is performed by using the self-determined transmitting antenna.

When the antenna is blocked by hand holding and the like, the base station can inform the terminal of adjusting the current uplink transmission mode of the antenna in time, and the terminal utilizes the determined transmitting antenna to carry out uplink transmission, so that the problem that in the selection process of the open-loop antenna, when a certain antenna is blocked by hand holding and the like, the antenna continues uplink transmission and cannot be successfully received by the base station, and further the system performance is influenced is solved. In addition, in this embodiment, the terminal may determine a preset antenna as the transmitting antenna, or the terminal determines the transmitting antenna by itself, so as to avoid a problem that a base station needs to instruct the terminal to select the same antenna as the transmitting antenna through a downlink control signaling within a period of time in the process of selecting the closed-loop antenna, which results in an increase of downlink control signaling overhead.

Referring to fig. 2, a flow of a transmit antenna switching method according to another embodiment is shown, where an execution main body of the method may be a terminal, and the specific steps are as follows:

step 201, when a plurality of antennas of a terminal receive downlink signals, obtaining a first difference value of measurement values of the received downlink signals among the antennas;

step 202, if the first difference value meets a first preset condition, sending first reporting information to the base station;

step 203, acquiring a first notification message sent by the base station according to the first report information, where the first notification message is used to notify a terminal to adjust a current uplink transmission mode of an antenna;

step 204, determining a transmitting antenna, and performing uplink transmission by using the determined transmitting antenna;

it should be noted that, the steps 201 to 204 can refer to the steps 101 to 104 in fig. 1, and are not repeated here.

Step 205, if a second difference of the measured values of the received downlink signals between the antennas meets a second preset condition, sending a second report message to the base station;

in this embodiment, if the second difference satisfies the second preset condition, which indicates that each of the multiple antennas of the terminal is not blocked by being held by a hand, the report of the terminal is triggered, and the base station may notify the terminal to start the transmit antenna selection or other transmission modes according to the report of the terminal.

Optionally, in this embodiment, in a second preset time period, a second difference between the measurement values of the antennas receiving the downlink signal is smaller than or equal to a second preset threshold;

in a second preset time period, the statistical average value of a second difference value of the measured values of the received downlink signals between the antennas is less than or equal to a second preset threshold value;

a second difference value of the measured values of the downlink signals received between the antennas is smaller than or equal to a second preset threshold value;

and in a second preset time period, the change rate of a second difference value of the measured values of the downlink signals received between the antennas is less than or equal to a second preset threshold value.

In this embodiment, the second preset time period and the second preset threshold may be configured by the network side, or determined by the terminal, and it should be noted that specific values of the second preset time period and the second preset threshold are not specifically limited. The second predetermined threshold may be smaller than or equal to the first predetermined threshold.

Optionally, in this embodiment, the second reporting information includes: a second difference value, a statistical average value of the second difference values, or a variation rate of the second difference values, which satisfy the second preset condition; and/or an uplink transmission mode recommended by the terminal.

Optionally, in this embodiment, the terminal may send the second reporting information to the base station by: reporting second reporting information to the base station through the reserved uplink resource; or reporting second reporting information to the base station through uplink resources configured by a high layer; or reporting second reporting information to the base station through uplink resources indicated by the downlink control information; or, the second reporting information is carried in a channel state information report and sent to the base station.

Step 206, acquiring a second notification message sent by the base station;

and step 207, performing uplink transmission by using the uplink transmission mode indicated by the second notification message.

For example: the second notification message includes fourth indication information, where the fourth indication information is used to indicate an uplink transmission mode of an antenna that was turned off before the terminal was turned on. For example, in step 203, the base station notifies the terminal to turn off the transmission antenna selection or other transmission modes, and in step 207, the base station may instruct the terminal to turn on the transmission antenna selection or other transmission modes again through a fourth indication message.

When the antenna is blocked by hand holding and the like, the base station can inform the terminal of adjusting the current uplink transmission mode of the antenna in time, and the terminal utilizes the determined transmitting antenna to carry out uplink transmission, so that the problem that in the selection process of the open-loop antenna, when a certain antenna is blocked by hand holding and the like, the antenna continues uplink transmission and cannot be successfully received by the base station, and further the system performance is influenced is solved. In addition, in this embodiment, the terminal may determine a preset antenna as the transmitting antenna, or the terminal determines the transmitting antenna by itself, so as to avoid a problem that a base station needs to instruct the terminal to select the same antenna as the transmitting antenna through a downlink control signaling within a period of time in the process of selecting the closed-loop antenna, which results in an increase of downlink control signaling overhead. Moreover, when the phenomenon that the antenna is blocked by hand holding and the like disappears, the uplink transmission mode can be timely adjusted, for example, the previous transmission mode is recovered, and the system performance is ensured.

Referring to fig. 3, a flow of a transmit antenna switching method according to another embodiment is shown, where an execution subject of the method is a terminal, and the method includes the following specific steps:

step 301, transmitting the transmitting capability information of the terminal to the base station;

in this embodiment, the transmission capability information includes one or more of: transmit antenna selection capability; uplink transmit diversity capability; and uplink spatial multiplexing capability.

If the antenna is an antenna panel, the transmission capability information includes one or more of: terminal transmit antenna panel selection capabilities and combined transmission capabilities of multiple antenna panels.

Step 302, acquiring an uplink transmission mode indicated or configured by the base station according to the transmitting capability information;

for example, a base station configures a terminal to adopt a transmit antenna selection mode, or an uplink transmit diversity mode, or an uplink spatial multiplexing mode through a high-level signaling; or, the base station instructs the terminal to adopt a transmission antenna selection mode, an uplink transmission diversity mode or an uplink spatial multiplexing mode through physical layer signaling.

Step 303, when a plurality of antennas of the terminal receive downlink signals, obtaining a first difference value of measurement values of the received downlink signals among the antennas;

step 304, if the first difference value meets a first preset condition, sending first reporting information to the base station;

step 305, acquiring a first notification message sent by the base station according to the first reporting information, where the first notification message is used to notify a terminal to adjust a current uplink transmission mode of an antenna;

step 306, determining a transmitting antenna, and performing uplink transmission by using the determined transmitting antenna;

step 307, if a second difference of the measured values of the received downlink signals between the antennas meets a second preset condition, sending second reporting information to the base station;

step 308, acquiring a second notification message sent by the base station;

and 309, performing uplink transmission by using the uplink transmission mode indicated by the second notification message.

It should be noted that, the steps 303 to 309 can refer to steps 201 to 207 in fig. 2, and are not repeated here.

Referring to fig. 4, a flow of a transmit antenna switching method in an embodiment is shown, where an execution subject of the method is a base station, and the method includes the following specific steps:

step 401, when a first difference value of measurement values of received downlink signals between terminal antennas meets a first preset condition, acquiring first reporting information sent by the terminal;

Optionally, in this embodiment, the first preset condition includes any one of:

Step 402, sending a first notification message to the terminal according to the first reporting information, where the first notification message is used to notify the terminal to adjust a current uplink transmission mode of an antenna.

In this embodiment, if the first report information includes the first difference, the statistical average of the first differences, or the variation rate of the first difference that satisfies the first preset condition, the method further includes: judging whether the first difference, the statistical average value of the first difference or the change rate of the first difference meets a third preset condition; and if the first difference, the statistical average of the first differences or the change rate of the first differences meet the third preset condition, determining that the current uplink transmission mode of the antenna needs to be adjusted.

The third preset condition is a preset condition configured at the base station side, for example, the first difference, the statistical average of the first difference, or the change rate of the first difference is compared with a third preset threshold configured at the base station side, to determine whether a blocking phenomenon such as holding of a part of the antenna of the terminal occurs, if the blocking phenomenon such as holding occurs, the current uplink transmission mode of the whole antenna is required, and if the blocking phenomenon such as holding does not occur, the current uplink transmission mode of the antenna may not be adjusted.

Optionally, the third preset condition includes any one of:

within a third preset time period, the first difference is greater than or equal to a third preset threshold value;

within a third preset time period, the statistical average value of the first difference value is greater than or equal to a third preset threshold value;

the first difference is greater than or equal to a third preset threshold value;

and in a third preset time period, the change rate of the first difference is greater than or equal to a third preset threshold value.

In this embodiment, the third preset time period and the third preset threshold may be configured by the network side, or determined by the terminal, and it should be noted that specific values of the third preset time period and the third preset threshold are not specifically limited.

Optionally, the first notification message includes any one of:

the first indication information is used for indicating a terminal to close a current uplink transmission mode of an antenna, and the terminal determines a transmitting antenna by itself;

second indication information, wherein the second indication information is used for indicating a transmitting antenna used by the terminal;

and third indication information, wherein the third indication information is used for indicating the terminal to use a preset transmitting antenna.

Optionally, the first notification message further includes information about a transmission antenna designated by the base station.

For downlink, a base station cannot obtain complete channel information, and therefore does not use a downlink multi-stream transmission mode or a downlink multi-antenna transmission mode any more, because downlink multi-stream transmission requires multiple antennas of a terminal for reception, but because a certain antenna is held by a hand, reception performance is poor, and a detection result of downlink multi-stream becomes poor. For downlink transmit diversity or single stream transmission, the terminal may receive using a single antenna, and the antenna with the received power difference may continue to perform the reception measurement.

Optionally, the method further comprises: and determining that the downlink adopts a single antenna transmission mode or a single stream transmission mode according to the first reported information. That is, when the base station schedules the terminal to perform downlink transmission, the single-antenna transmission mode or the single-stream transmission mode is used instead of the spatial multiplexing multi-stream transmission.

Referring to fig. 5, a flow of a transmit antenna switching method in another embodiment is shown, where an execution subject of the method is a base station, and the method includes the following specific steps:

step 501, when a first difference value of measurement values of received downlink signals between terminal antennas meets a first preset condition, acquiring first reporting information sent by the terminal;

step 502, sending a first notification message to the terminal according to the first reporting information, where the first notification message is used to notify the terminal to adjust a current uplink transmission mode of an antenna;

it should be noted that, the detailed descriptions of the steps 501 to 502 can refer to the steps 401 to 402 in fig. 4, and are not repeated here.

Step 503, when a second difference between the antennas of the terminal for receiving the measurement values of the downlink signal meets a second preset condition, acquiring second reporting information sent by the terminal;

optionally, in this embodiment, the second preset condition includes any one of:

in a second preset time period, a second difference value of the measured values of the downlink signals received between the antennas is smaller than or equal to a second preset threshold value;

In this embodiment, the second preset time period and the second preset threshold may be configured by the network side, or determined by the terminal, and it should be noted that specific values of the second preset time period and the second preset threshold are not specifically limited.

Step 504, determining an uplink transmission mode of the antenna of the terminal according to the second reported information;

and step 505, sending a second notification message to the terminal.

Optionally, the second notification message includes fourth indication information, where the fourth indication information is used to notify the terminal of an uplink transmission mode of an antenna that is turned off before the terminal is turned on. Other transmission modes, such as the previous base station informing the terminal to turn off the transmit antenna selection, etc., and the fourth indication message instructs the terminal to turn on the transmit antenna selection or other transmission modes again in step 505.

For downlink, the base station may use a downlink multi-stream transmission mode or a downlink multi-antenna transmission mode because the base station can obtain complete channel information. Optionally, the method further comprises: and the base station determines that a downlink adopts a downlink multi-stream transmission mode or a downlink multi-antenna transmission mode according to the second reported information, for example, various multi-stream transmission schemes including spatial multiplexing.

Moreover, when the phenomenon that the antenna is blocked by hand holding and the like disappears, the uplink transmission mode can be timely adjusted, for example, the previous transmission mode of the antenna is recovered, and the system performance is ensured.

Referring to fig. 6, a flow of a transmit antenna switching method in another embodiment is shown, where an execution subject of the method is a base station, and the method includes the following specific steps:

step 601, acquiring transmitting capability information sent by the terminal;

optionally, in this embodiment, the transmission capability information includes one or more of the following items: terminal transmit antenna selection capability; terminal uplink transmit diversity capability; and terminal uplink spatial multiplexing capability.

Step 602, configuring or indicating an uplink transmission mode adopted by the terminal according to the transmitted capability information;

for example, the base station configures the uplink transmission mode adopted by the terminal through high-level signaling. And for example, the base station indicates the uplink transmission mode adopted by the terminal through physical layer signaling.

Step 603, configuring an uplink reference signal for the terminal, or scheduling the terminal to send an uplink channel;

configuring the uplink reference signal may be: a periodic SRS configured according to RRC (radio resource control), or an aperiodic SRS triggered by the base station.

The uplink channel may be a PUSCH (physical uplink shared channel) scheduled by the base station, or may be an uplink control channel PUCCH (physical uplink control channel).

Step 604, when a first difference value of measurement values of received downlink signals between terminal antennas meets a first preset condition, acquiring first reporting information sent by the terminal;

step 605, sending a first notification message to the terminal according to the first reporting information, where the first notification message is used to notify the terminal to adjust a current uplink transmission mode of an antenna;

step 606, when a second difference between the measured values of the downlink signals received by the antennas of the terminal meets a second preset condition, acquiring second reporting information sent by the terminal;

step 607, determining the uplink transmission mode of the antenna of the terminal according to the second reported information;

step 608, sending a second notification message to the terminal, where the second notification message includes the uplink transmission mode determined by the base station.

Optionally, the base station determines that the downlink adopts a downlink multi-stream transmission mode or a downlink multi-antenna transmission mode according to the second reported information.

It should be noted that the detailed descriptions of the steps 604 to 608 can refer to the steps 501 to 505 in fig. 5, and are not repeated here.

For a TDD system, a base station obtains complete channel information through uplink channel estimation, so that a precoding codebook is calculated and selected.

Two antennas of the terminal transmit uplink reference signals, such as SRS, in turn. When a user holds the terminal by hand, the phenomenon of holding a certain antenna occurs, when the terminal uses two antennas to measure received signals, the difference value of the measured values of downlink signals between the antennas is found to exceed a preset threshold value, and at the moment, the terminal sends an uplink report to a base station.

For uplink, the base station decides to close the terminal antenna alternate transmission mode according to the difference of the measured values of the downlink signals between the antennas in the terminal uplink report, the recommended transmitting antenna and other contents, and informs the terminal.

And after receiving the notification, the terminal only uses the antenna with high measurement value for receiving the downlink signal to perform uplink transmission. Therefore, the problem that the antenna with low measurement value of the downlink signal continues to transmit uplink and cannot be successfully received by the base station can be avoided, and the signaling overhead that the base station informs the terminal which transmitting antenna is used in the closed-loop antenna selection can also be avoided, because only one terminal antenna is available at the moment, the closed-loop antenna selection is not needed any more.

For downlink, since the base station cannot obtain complete channel information, the downlink multi-stream transmission mode or the downlink multi-antenna transmission mode is no longer used, because the downlink multi-stream transmission needs multiple antennas of the terminal for reception, but since a certain antenna is held by a hand, the reception performance is poor, and the detection result of the downlink multi-stream becomes poor. For downlink transmit diversity or single stream transmission, the terminal may use a single antenna for reception, and an antenna with a low measurement value for receiving the downlink signal may continue to perform the measurement for receiving the downlink signal.

Therefore, under the condition that the base station cannot obtain complete channel information, the downlink multi-stream transmission is not used blindly, the uplink transmission mode is adjusted in time, the system performance is ensured, and the signaling overhead is reduced.

For 5G high frequency communication, a user may hold a panel or a portion of a panel during use, which may degrade the received power of the panel.

Referring to fig. 7 and 8, a Panel-based antenna array structure is shown, that is, an antenna array of a base station or a terminal is formed by a plurality of panels, wherein each Panel (Panel1 or Panel2) includes a plurality of antenna elements. If the terminal has two panels (Panel1 and Panel2), two panels are needed to measure the received signal power in order to support Panel switching.

Since the antenna array of the high frequency band usually uses beamforming technology to transmit and receive signals, whether receive beamforming is used or not needs to be considered in the measurement. The following may be specific:

mode 1: when the panel measures the received signal power, the beam forming technology is not used, that is, each antenna array element receives the downlink signal, and then the received signals are added with the weight value of 1, and the added measurement result is obtained.

Mode 2: the panel uses beamforming techniques when measuring the received signal power. Generally, before transmitting data, the base station and the terminal perform beam training, find a corresponding optimal transmit beam and receive beam, and transmit data on the beam pair link. Each panel will find its own optimal beam through beam training. When measuring the received signal power, each panel uses the optimal received beam forming to weight and combine the received signal of each antenna array element by the received beam forming weight value, thereby obtaining the measurement result on the panel.

Mode 3: when the panel measures the received signal power, the beamforming technology is used, and different from the method 2, each panel uses all possible received beams to perform beamforming reception on the received signal, and takes the maximum value as the measurement result on the panel.

Through the measurement process, the measurement results between the panels are compared, and whether the preset conditions for panel switching are met or not is judged.

Therefore, the panel structure of the 5G high-frequency band large-scale antenna can be supported, multi-panel combined transmission can be used without blindness when switching among the panels, the uplink transmitting mode can be adjusted in time, the system performance is ensured, and the signaling overhead is reduced.

The embodiment of the invention also provides a terminal, and as the principle of solving the problem of the terminal is similar to the method for switching the transmitting antenna in the embodiment of the invention, the implementation of the terminal can refer to the implementation of the method, and repeated parts are not described again.

Referring to fig. 9, there is shown a structure of a terminal 900 including:

a first obtaining module 901, configured to obtain, when multiple antennas of the terminal receive downlink signals, a first difference between measurement values of the antennas that receive the downlink signals;

a first sending module 902, configured to send first reporting information to the base station if the first difference meets a first preset condition;

a second obtaining module 903, configured to obtain a first notification message sent by the base station according to the first reporting information, where the first notification message is used to notify a terminal to adjust a current uplink transmission mode of an antenna;

a second sending module 904, configured to determine a transmitting antenna, and perform uplink transmission by using the determined transmitting antenna.

Optionally, the antenna is a physical antenna, an antenna port, or an antenna panel.

Optionally, if the antenna is an antenna panel, the measurement value is: the antenna panel has measurements of receive beamforming gain or the antenna panel does not have measurements of receive beamforming gain.

Optionally, the first preset condition includes any one of:

Optionally, the first preset threshold is configured by a network side or determined by a terminal.

Optionally, the first reporting information includes one or more of the following items:

the first difference value meeting the first preset condition, the statistical average value of the first difference values or the change rate of the first difference values;

a transmitting antenna recommended to be used by the terminal;

a transmitting antenna which is not recommended to be used by the terminal; and

and the terminal recommends an uplink transmission mode.

Optionally, the first sending module 902 is further configured to:

if the first difference value meets a first preset condition, reporting first reporting information to the base station through a reserved uplink resource;

alternatively, the first and second electrodes may be,

if the first difference value meets a first preset condition, reporting first reporting information to the base station through uplink resources configured by a high layer;

alternatively, the first and second electrodes may be,

if the first difference value meets a first preset condition, reporting first reporting information to the base station through uplink resources indicated by downlink control information;

alternatively, the first and second electrodes may be,

and if the first difference value meets a first preset condition, the first reporting information is carried in a channel state information report and sent to the base station.

Optionally, the second sending module 904 is further configured to:

determining a preset antenna as a transmitting antenna, and performing uplink transmission by using the preset antenna;

alternatively, the first and second electrodes may be,

determining a transmitting antenna appointed by the base station carried in the first notification message as a transmitting antenna, and performing uplink transmission by using the transmitting antenna appointed by the base station;

alternatively, the first and second electrodes may be,

and self-determining a transmitting antenna, and performing uplink transmission by using the self-determined transmitting antenna.

Optionally, with continued reference to fig. 9, the terminal 900 further includes:

a third sending module 905, configured to send second reporting information to the base station if a second difference between the measured values of the received downlink signals between the antennas meets a second preset condition;

a third obtaining module 906, configured to obtain a second notification message sent by the base station, where the second notification message includes an uplink transmission mode determined by the base station;

a fourth sending module 907, configured to perform uplink transmission using the uplink transmission mode indicated by the second notification message.

Optionally, the second preset condition includes any one of:

in a second preset time period, the statistical average value of the difference values of the measured values of the downlink signals received between the antennas is less than or equal to a second preset threshold value;

a second difference value of the measured values of the downlink signals received between the antennas is smaller than or equal to a first preset threshold value;

Optionally, the second reporting information includes:

a second difference value, a statistical average value of the second difference values, or a variation rate of the second difference values, which satisfy the second preset condition;

and/or the presence of a gas in the gas,

and the terminal recommends an uplink transmission mode.

Optionally, the third sending module 905 is further configured to:

if a second difference value of the measured values of the received downlink signals between the antennas meets a second preset condition, reporting second reporting information to the base station through the reserved uplink resources;

alternatively, the first and second electrodes may be,

if a second difference value of the measured values of the received downlink signals between the antennas meets a second preset condition, reporting second reporting information to the base station through uplink resources configured by a high layer;

alternatively, the first and second electrodes may be,

if a second difference value of the measured values of the received downlink signals between the antennas meets a second preset condition, reporting second reporting information to the base station through uplink resources indicated by the downlink control information;

alternatively, the first and second electrodes may be,

and if a second difference value of the measured values of the received downlink signals between the antennas meets a second preset condition, carrying second reporting information in a channel state information report and sending the second reporting information to the base station.

a fifth sending module 908, configured to send, to the base station, the transmission capability information of the terminal;

a fourth obtaining module 909, configured to obtain the uplink transmission mode indicated or configured by the base station according to the transmission capability information.

Optionally, the transmission capability information comprises one or more of:

transmit antenna selection capability;

uplink transmit diversity capability; and

an uplink spatial multiplexing capability.

Optionally, if the antenna is an antenna panel, the transmission capability information includes one or more of: terminal transmit antenna panel selection capabilities and combined transmission capabilities of multiple antenna panels.

The terminal provided in this embodiment may execute the method embodiments described above, and the implementation principle and technical effect are similar, which are not described herein again.

The embodiment of the invention also provides a base station, and as the principle of solving the problems of the base station is similar to the uplink power control method in the embodiment of the invention, the implementation of the base station can refer to the implementation of the method, and repeated parts are not described again.

The embodiment of the invention also provides a base station, and as the principle of solving the problem of the base station is similar to the method for switching the transmitting antenna in the embodiment of the invention, the implementation of the base station can refer to the implementation of the method, and the repeated points are not repeated.

Referring to fig. 10, there is shown a structure of a base station, the base station 1000 comprising:

a fifth obtaining module 1001, configured to obtain first reporting information sent by a terminal when a first difference between measured values of downlink signals received between antennas of the terminal meets a first preset condition;

a sixth sending module 1002, configured to send a first notification message to the terminal according to the first reporting information, where the first notification message is used to notify the terminal to adjust a current uplink transmission mode of an antenna.

Optionally, the first preset condition includes any one of:

a transmitting antenna recommended to be used by the terminal;

a transmitting antenna which is not recommended to be used by the terminal; and

and the terminal recommends an uplink transmission mode.

Optionally, if the first reported information includes the first difference, the statistical average of the first differences, or the variation rate of the first difference that satisfies the first preset condition, with reference to fig. 10, the base station 1000 further includes:

the judging module 1003 is configured to judge whether the first difference, the statistical average of the first difference, or the change rate of the first difference satisfies a third preset condition;

a first determining module 1004, configured to determine that the current uplink transmission mode of the antenna needs to be adjusted if the first difference, the statistical average of the first differences, or the change rate of the first difference satisfies the third preset condition.

Optionally, the third preset condition includes any one of:

Optionally, the first notification message includes any one of:

and third indication information, where the third indication information is used to indicate that the terminal uses a preset transmitting antenna, for example, a transmitting antenna agreed by a protocol.

Optionally, with continued reference to fig. 10, the base station 1000 further includes:

a second determining module 1005, configured to determine, according to the first reporting information, that a downlink employs a single antenna transmission mode or a single stream transmission mode.

a sixth obtaining module 1006, configured to obtain second reporting information sent by the terminal when a second difference between the measured values of the downlink signals received between the antennas of the terminal meets a second preset condition;

a third determining module 1007, configured to determine an uplink transmission mode of an antenna of the terminal according to the second reporting information;

a seventh sending module 1008, configured to send a second notification message to the terminal, where the second notification message includes the uplink transmission mode determined by the base station.

Optionally, the second preset condition includes any one of:

Optionally, the second reporting information includes:

and/or the presence of a gas in the gas,

and the terminal recommends an uplink transmission mode.

Optionally, the second notification message includes fourth indication information, where the fourth indication information is used to notify the terminal of an uplink transmission mode of an antenna that is turned off before the terminal is turned on.

a fourth determining module 1009, configured to determine, according to the second reporting information, that a downlink adopts a downlink multi-stream transmission mode or a downlink multi-antenna transmission mode.

a seventh obtaining module 1010, configured to obtain the transmission capability information sent by the terminal;

a first processing module 1011, configured to configure or indicate an uplink transmission mode adopted by the terminal according to the transmitted capability information.

Optionally, the transmission capability information comprises one or more of:

terminal transmit antenna selection capability;

terminal uplink transmit diversity capability; and

and the terminal uplink spatial multiplexing capability.

a second processing module 1012, configured to configure an uplink reference signal for the terminal, or schedule the terminal to send an uplink channel.

The base station provided in this embodiment may execute the method embodiments described above, and the implementation principle and technical effect are similar, which is not described herein again.

The following embodiments further provide a schematic diagram of a hardware structure of a terminal and a base station.

Fig. 11 is a schematic structural diagram of a terminal according to another embodiment of the present invention. As shown in fig. 11, the terminal 1100 shown in fig. 11 includes: at least one processor 1101, memory 1102, at least one network interface 1104, and a user interface 1103. The various components in terminal 1100 are coupled together by a bus system 1105. It is understood that the bus system 1105 is used to enable communications among the components. The bus system 1105 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled in fig. 11 as the bus system 1105.

The user interface 1103 may include, among other things, a display, a keyboard, or a pointing device (e.g., a mouse, trackball, touch pad, or touch screen, among others.

It is to be understood that the memory 1102 in embodiments of the present invention can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile memory may be a Read-only memory (ROM), a programmable Read-only memory (PROM), an erasable programmable Read-only memory (erasabprom, EPROM), an electrically erasable programmable Read-only memory (EEPROM), or a flash memory. The volatile memory may be a Random Access Memory (RAM) which functions as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static random access memory (staticiram, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (syncronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM ), Enhanced Synchronous DRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), and direct memory bus RAM (DRRAM). The memory 1102 of the subject systems and methods is intended to comprise, without being limited to, these and any other suitable types of memory.

In some embodiments, memory 1102 stores the following elements, executable modules or data structures, or a subset thereof, or an expanded set thereof: an operating system 11021 and application programs 11022.

The operating system 11021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks. The application 11022 contains various applications such as a media player (MediaPlayer), a Browser (Browser), and the like for implementing various application services. Programs that implement methods in accordance with embodiments of the invention may be included in application 11022.

In the embodiment of the present invention, the processor 1101 may execute the method executed by the terminal by calling the program or the instruction stored in the memory 1102, specifically, the program or the instruction stored in the application 11022.

The methods disclosed in the embodiments of the present invention described above may be implemented in the processor 1101 or by the processor 1101. The processor 1101 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by instructions in the form of hardware, integrated logic circuits, or software in the processor 1101. The processor 1101 may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in ram, flash memory, rom, prom, or eprom, registers, or other storage media as is known in the art. The storage medium is located in the memory 1102, and the processor 1101 reads the information in the memory 1102 and combines the hardware to complete the steps of the above method.

It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units designed to perform the functions described herein, or a combination thereof.

For a software implementation, the techniques described in this disclosure may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described in this disclosure. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.

Specifically, the processor 1101 may call a program or instructions stored in the memory 1102 to execute the following process: when a plurality of antennas of the terminal receive downlink signals, acquiring a first difference value of measurement values of the downlink signals received among the antennas; if the first difference value meets a first preset condition, sending first reporting information to a base station; acquiring a first notification message sent by the base station according to the first reporting information, wherein the first notification message is used for notifying a terminal to adjust a current uplink transmission mode of an antenna; and determining a transmitting antenna, and performing uplink transmission by using the determined transmitting antenna.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps in the embodiment of the transmitting antenna switching method are implemented.

Referring to fig. 12, it is a structural diagram of a base station applied in the embodiment of the present invention, which can implement details of the transmit antenna switching method in the corresponding embodiment described above, and achieve the same effect. As shown in fig. 12, the base station 1200 includes: a processor 1201, a transceiver 1202, a memory 1203 and a bus interface, wherein:

in this embodiment of the present invention, the base station 1200 further includes: a computer program stored on the memory 1203 and executable on the processor 1201, the computer program when executed by the processor 1201 performing the steps of: when a first difference value of measurement values of received downlink signals between terminal antennas meets a first preset condition, acquiring first reporting information sent by a terminal; and sending a first notification message to the terminal according to the first reporting information, wherein the first notification message is used for notifying the terminal to adjust the current uplink transmission mode of the antenna.

In fig. 12, the bus architecture may include any number of interconnected buses and bridges, with various circuits linking one or more processors, represented by the processor 1201, and memory, represented by the memory 1203. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1202 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. For different user devices, the user interface may also be an interface capable of interfacing with a desired device externally, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 1201 is responsible for managing a bus architecture and general processing, and the memory 1203 may store data used by the processor 1201 in performing operations.

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

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

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

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

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

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

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A transmitting antenna switching method is applied to a terminal and is characterized by comprising the following steps:

if the first difference value meets a first preset condition, sending first reporting information to a base station, wherein the first reporting information comprises one or more of the following items: a transmitting antenna recommended to be used by the terminal; a transmitting antenna which is not recommended to be used by the terminal; and an uplink transmission mode recommended by the terminal;

acquiring a first notification message sent by the base station according to the first report information, wherein the first notification message is used for notifying a terminal to adjust a current uplink transmission mode of an antenna, and the first notification message includes any one of the following: the first indication information is used for indicating a terminal to close a current uplink transmission mode of an antenna, and the terminal determines a transmitting antenna by itself; second indication information, wherein the second indication information is used for indicating a transmitting antenna used by the terminal; third indication information, wherein the third indication information is used for indicating the terminal to use a preset transmitting antenna;

2. The method of claim 1, wherein the antenna is a physical antenna, an antenna port, or an antenna panel.

3. The method of claim 2, wherein if the antenna is an antenna panel, the measurements are: the antenna panel has measurements of receive beamforming gain or the antenna panel does not have measurements of receive beamforming gain.

4. The method according to claim 1, wherein the first preset condition comprises any one of:

5. The method of claim 4, wherein the first preset threshold is configured by a network side or determined by a terminal.

6. The method of claim 1, wherein the sending the first reporting information to the base station comprises:

reporting first reporting information to the base station through the reserved uplink resources;

alternatively, the first and second electrodes may be,

reporting first reporting information to the base station through uplink resources configured by a high layer;

alternatively, the first and second electrodes may be,

reporting first reporting information to the base station through uplink resources indicated by the downlink control information;

alternatively, the first and second electrodes may be,

and carrying the first reporting information in a channel state information report and sending the first reporting information to the base station.

7. The method of claim 1, wherein the determining the transmitting antenna and utilizing the determined transmitting antenna for uplink transmission comprises:

alternatively, the first and second electrodes may be,

8. The method of claim 4, wherein after the uplink transmission using the determined transmit antenna, the method further comprises:

if a second difference value of the measured values of the received downlink signals between the antennas meets a second preset condition, sending second reporting information to the base station;

acquiring a second notification message sent by the base station, wherein the second notification message comprises an uplink transmission mode determined by the base station;

and performing uplink transmission by using the uplink transmission mode indicated by the second notification message.

9. The method according to claim 8, wherein the second preset condition comprises any one of:

10. The method of claim 8, wherein the second reporting information comprises:

and/or the presence of a gas in the gas,

and the terminal recommends an uplink transmission mode.

11. The method of claim 8, wherein the sending the second reporting information to the base station comprises:

reporting second reporting information to the base station through the reserved uplink resource;

alternatively, the first and second electrodes may be,

reporting second reporting information to the base station through uplink resources configured by a high layer;

alternatively, the first and second electrodes may be,

reporting second reporting information to the base station through uplink resources indicated by the downlink control information;

alternatively, the first and second electrodes may be,

and carrying the second reporting information in a channel state information report and sending the second reporting information to the base station.

12. The method of claim 1, further comprising:

transmitting the transmitting capability information of the terminal to the base station;

and acquiring the uplink transmission mode indicated or configured by the base station according to the transmitting capability information.

13. The method of claim 12, wherein the transmission capability information comprises one or more of:

transmit antenna selection capability;

uplink transmit diversity capability; and

an uplink spatial multiplexing capability.

14. The method of claim 12, wherein the transmission capability information comprises one or more of: terminal transmit antenna panel selection capabilities and combined transmission capabilities of multiple antenna panels.

15. A transmitting antenna switching method is applied to a base station and is characterized by comprising the following steps:

when a first difference value of measurement values of received downlink signals between terminal antennas meets a first preset condition, acquiring first reporting information sent by the terminal, wherein the first reporting information comprises one or more of the following items: a transmitting antenna recommended to be used by the terminal; a transmitting antenna which is not recommended to be used by the terminal; and an uplink transmission mode recommended by the terminal;

sending a first notification message to the terminal according to the first reporting information, where the first notification message is used to notify the terminal to adjust a current uplink transmission mode of an antenna, and the first notification message includes any one of the following: the first indication information is used for indicating a terminal to close a current uplink transmission mode of an antenna, and the terminal determines a transmitting antenna by itself; second indication information, wherein the second indication information is used for indicating a transmitting antenna used by the terminal; and third indication information, wherein the third indication information is used for indicating the terminal to use a preset transmitting antenna.

16. The method of claim 15, wherein the antenna is a physical antenna, an antenna port, or an antenna panel.

17. The method of claim 16, wherein if the antenna is an antenna panel, the measurements are: the antenna panel has measurements of receive beamforming gain or the antenna panel does not have measurements of receive beamforming gain.

18. The method according to claim 15, wherein the first preset condition comprises any one of:

19. The method of claim 18, wherein the first preset threshold is configured by a network side or determined by a terminal.

20. The method of claim 15, wherein the first reported information includes the first difference, a statistical average of the first differences, or a variation rate of the first differences that satisfy the first preset condition, and wherein the method further comprises:

judging whether the first difference, the statistical average value of the first difference or the change rate of the first difference meets a third preset condition;

and if the first difference, the statistical average of the first differences or the change rate of the first differences meet the third preset condition, determining that the current uplink transmission mode of the antenna needs to be adjusted.

21. The method according to claim 20, wherein the third preset condition comprises any one of:

22. The method of claim 15, further comprising:

and determining that the downlink adopts a single antenna transmission mode or a single stream transmission mode according to the first reported information.

23. The method of claim 15, further comprising:

when a second difference value of the measured values of the downlink signals received between the antennas of the terminal meets a second preset condition, acquiring second reporting information sent by the terminal;

determining an uplink transmission mode of an antenna of the terminal according to the second reported information;

and sending a second notification message to the terminal.

24. The method according to claim 23, wherein the second preset condition comprises any one of:

25. The method of claim 24, wherein the second reporting information comprises:

and/or the presence of a gas in the gas,

and the terminal recommends an uplink transmission mode.

26. The method according to claim 23, wherein the second notification message includes fourth indication information, and the fourth indication information is used to notify the terminal to turn on the uplink transmission mode of the antenna that was turned off before the terminal was turned on.

27. The method of claim 23, further comprising:

and determining that a downlink adopts a downlink multi-stream transmission mode or a downlink multi-antenna transmission mode according to the second reported information.

28. The method of claim 15, further comprising:

acquiring transmitting capacity information sent by the terminal;

and configuring or indicating the uplink transmission mode adopted by the terminal according to the transmitted capability information.

29. The method of claim 28, wherein the transmission capability information comprises one or more of:

terminal transmit antenna selection capability;

terminal uplink transmit diversity capability; and

and the terminal uplink spatial multiplexing capability.

30. The method of claim 29, wherein if the antenna is an antenna panel, the transmission capability information comprises one or more of: terminal transmit antenna panel selection capabilities and combined transmission capabilities of multiple antenna panels.

31. The method of claim 15, further comprising:

and configuring an uplink reference signal for the terminal, or scheduling the terminal to send an uplink channel.

32. A terminal, comprising:

a first sending module, configured to send first reporting information to a base station if the first difference satisfies a first preset condition, where the first reporting information includes one or more of the following: a transmitting antenna recommended to be used by the terminal; a transmitting antenna which is not recommended to be used by the terminal; and an uplink transmission mode recommended by the terminal;

a second obtaining module, configured to obtain a first notification message sent by the base station according to the first reporting information, where the first notification message is used to notify a terminal to adjust a current uplink transmission mode of an antenna, and the first notification message includes any one of the following: the first indication information is used for indicating a terminal to close a current uplink transmission mode of an antenna, and the terminal determines a transmitting antenna by itself; second indication information, wherein the second indication information is used for indicating a transmitting antenna used by the terminal; third indication information, wherein the third indication information is used for indicating the terminal to use a preset transmitting antenna;

33. The terminal of claim 32, wherein the antenna is a physical antenna, an antenna port, or an antenna panel.

34. The terminal of claim 33, wherein if the antenna is an antenna panel, the measurement values are: the antenna panel has measurements of receive beamforming gain or the antenna panel does not have measurements of receive beamforming gain.

35. The terminal according to claim 32, wherein the first preset condition comprises any one of:

36. The terminal of claim 35, wherein the first preset threshold is configured by a network side or determined by the terminal.

37. The terminal of claim 32, wherein the first sending module is further configured to:

alternatively, the first and second electrodes may be,

38. The terminal of claim 32, wherein the second sending module is further configured to:

alternatively, the first and second electrodes may be,

39. The terminal of claim 32, wherein the terminal further comprises:

a third sending module, configured to send second reporting information to the base station if a second difference between the measured values of the received downlink signals between the antennas meets a second preset condition;

a third obtaining module, configured to obtain a second notification message sent by the base station;

and the fourth sending module is configured to perform uplink transmission by using the uplink transmission mode indicated by the second notification message.

40. The terminal according to claim 39, wherein the second preset condition comprises any one of:

41. The terminal of claim 39, wherein the second reporting information comprises:

and/or the presence of a gas in the gas,

and the terminal recommends an uplink transmission mode.

42. The terminal of claim 39, wherein the third sending module is further configured to:

alternatively, the first and second electrodes may be,

43. The terminal of claim 32, wherein the terminal further comprises:

a fifth sending module, configured to send the transmission capability information of the terminal to the base station;

and a fourth obtaining module, configured to obtain an uplink transmission mode indicated or configured by the base station according to the transmission capability information.

44. The terminal of claim 43, wherein the transmission capability information comprises one or more of:

transmit antenna selection capability;

uplink transmit diversity capability; and

an uplink spatial multiplexing capability.

45. The terminal of claim 43, wherein if the antenna is an antenna panel, the transmission capability information comprises one or more of: terminal transmit antenna panel selection capabilities and combined transmission capabilities of multiple antenna panels.

46. A base station, comprising:

a fifth obtaining module, configured to obtain first reporting information sent by the terminal when a first difference between measured values of downlink signals received between antennas of the terminal meets a first preset condition, where the first reporting information includes one or more of the following items: a transmitting antenna recommended to be used by the terminal; a transmitting antenna which is not recommended to be used by the terminal; and an uplink transmission mode recommended by the terminal;

a sixth sending module, configured to send a first notification message to the terminal according to the first reporting information, where the first notification message is used to notify the terminal to adjust a current uplink transmission mode of an antenna, and the first notification message includes any one of the following: the first indication information is used for indicating a terminal to close a current uplink transmission mode of an antenna, and the terminal determines a transmitting antenna by itself; second indication information, wherein the second indication information is used for indicating a transmitting antenna used by the terminal; and third indication information, wherein the third indication information is used for indicating the terminal to use a preset transmitting antenna.

47. The base station of claim 46, wherein the antenna is a physical antenna, an antenna port, or an antenna panel.

48. The base station of claim 47, wherein if the antenna is an antenna panel, the measurements are: the antenna panel has measurements of receive beamforming gain or the antenna panel does not have measurements of receive beamforming gain.

49. The base station according to claim 46, wherein the first preset condition comprises any one of:

50. The base station of claim 49, wherein the first preset threshold is configured by a network side or determined by a terminal.

51. The base station of claim 46, wherein if the first reported information includes the first difference, the statistical average of the first differences, or the variation rate of the first differences that satisfy the first predetermined condition, the base station further comprises:

the judging module is used for judging whether the first difference, the statistical average value of the first difference or the change rate of the first difference meets a third preset condition or not;

and a first determining module, configured to determine that the current uplink transmission mode of the antenna needs to be adjusted if the first difference, the statistical average of the first differences, or the change rate of the first difference satisfies the third preset condition.

52. The base station according to claim 51, wherein the third preset condition comprises any one of:

53. The base station of claim 46, wherein the base station further comprises:

and a second determining module, configured to determine, according to the first reporting information, that a single antenna transmission mode or a single stream transmission mode is adopted for a downlink.

54. The base station of claim 46, wherein the base station further comprises:

a sixth obtaining module, configured to obtain second reporting information sent by the terminal when a second difference between the measured values of the downlink signals received by the antennas of the terminal meets a second preset condition;

a third determining module, configured to determine, according to the second reporting information, an uplink transmission mode of an antenna of the terminal;

and the seventh sending module is used for sending the second notification message to the terminal.

55. The base station of claim 54, wherein the second preset condition comprises any one of:

56. The base station of claim 55, wherein the second reported information comprises:

and/or the presence of a gas in the gas,

and the terminal recommends an uplink transmission mode.

57. The BS of claim 54, wherein the second notification message comprises a fourth indication information, and the fourth indication information is used to notify the terminal to turn on an uplink transmission mode of an antenna that was turned off before the terminal was turned on.

58. The base station of claim 54, wherein the base station further comprises:

and a fourth determining module, configured to determine, according to the second reporting information, that a downlink adopts a downlink multi-stream transmission mode or a downlink multi-antenna transmission mode.

59. The base station of claim 46, wherein the base station further comprises:

a seventh obtaining module, configured to obtain the transmission capability information sent by the terminal;

and the first processing module is used for configuring or indicating the uplink transmission mode adopted by the terminal according to the transmitted capability information.

60. The base station of claim 59, wherein the transmission capability information comprises one or more of:

terminal transmit antenna selection capability;

terminal uplink transmit diversity capability; and

and the terminal uplink spatial multiplexing capability.

61. The base station of claim 60, wherein if the antenna is an antenna panel, the transmission capability information comprises one or more of: terminal transmit antenna panel selection capabilities and combined transmission capabilities of multiple antenna panels.

62. The base station of claim 59, wherein the base station further comprises:

and the second processing module is used for configuring an uplink reference signal for the terminal or scheduling the terminal to send an uplink channel.

63. A terminal, characterized in that it comprises a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the transmit antenna switching method according to any one of claims 1 to 14.

64. A base station comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the transmit antenna switching method according to any one of claims 15 to 31.

65. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the steps of the transmit antenna switching method according to any one of claims 1 to 14; or the steps of the transmit antenna switching method of any of claims 15 to 31.