CN116073868A

CN116073868A - Method and device for selecting transmitting antenna

Info

Publication number: CN116073868A
Application number: CN202111273968.8A
Authority: CN
Inventors: 张华�; 王德乾; 刘水; 刘鑫
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2023-05-05

Abstract

The disclosure relates to a transmitting antenna selection method and device, electronic equipment and storage medium. Wherein the method comprises the following steps: transmitting sounding reference signals SRS to a base station through a plurality of antennas in the terminal respectively; acquiring receiving quality information returned by the base station, wherein the receiving quality information is used for indicating the receiving quality of each SRS received by the base station; at least one target antenna is selected from the plurality of antennas as a transmitting antenna based on the reception quality information. The embodiment can accurately reflect the sending quality of the terminal antenna by means of the SRS sent by the terminal to the base station and the receiving quality of the SRS returned by the base station to the terminal, and avoid errors, so that the terminal can accurately select the sending antenna and improve the uplink transmission quality.

Description

Method and device for selecting transmitting antenna

Technical Field

The disclosure relates to the field of mobile communications, and in particular, to a method and device for selecting a transmitting antenna, an electronic device, and a storage medium.

Background

MIMO (Multiple-Input Multiple-Output) is a key technology for improving throughput in mobile networks. According to the MIMO technology, multiple transmitting antennas and receiving antennas can be used at the transmitting end and the receiving end, respectively, and compared with the conventional information transmission method, information transmission can be performed in two aspects of time and space at the same time, so that the data rate of the system can be improved, the bit error rate can be reduced, and the transmission quality of wireless signals can be improved on the premise of not increasing the bandwidth and the transmitting power.

For terminals such as cell phones, the location of the antenna in the terminal is fixed, e.g. typically placed at the top and bottom of the phone. With the change of the holding mode of the user, such as two-hand horizontal holding, one-hand vertical holding, and the like, the signal transmission quality of a plurality of antennas in the terminal can also be correspondingly changed.

In general, a terminal has limited capability for uplink transmission, and it is difficult to apply all antennas for uplink transmission. In order to ensure the uplink transmission quality, the terminal can timely perform antenna switching along with the signal transmission quality change of each antenna, namely, at least one antenna with better transmission signal quality is selected for transmission. In the related art, a terminal may evaluate the quality of an antenna transmission signal according to the quality of an antenna reception signal based on channel reciprocity, thereby selecting a transmission antenna.

However, due to differences in transceiving performance of components in the terminal, abrupt changes in channels, and the like, transmission quality of uplink and downlink channels is not completely consistent, quality of an antenna transmission signal is estimated according to quality of an antenna reception signal, and a large error exists, so that a transmission antenna selected by the terminal is inaccurate.

Disclosure of Invention

The disclosure provides a transmitting antenna selection method and device, electronic equipment and storage medium, which can solve the problems in the related art.

According to a first aspect of the present disclosure, there is provided a transmission antenna selection method, applied to a terminal, including:

transmitting sounding reference signals SRS to a base station through a plurality of antennas in the terminal respectively;

acquiring receiving quality information returned by the base station, wherein the receiving quality information is used for indicating the receiving quality of each SRS received by the base station;

at least one target antenna is selected from the plurality of antennas as a transmitting antenna based on the reception quality information.

According to a second aspect of the present disclosure, there is provided a transmission antenna selection method applied to a base station, the method including:

receiving sounding reference signals SRS sent by a terminal from a plurality of antennas;

and returning receiving quality information to the terminal based on the receiving quality of each SRS.

According to a third aspect of the present disclosure, there is provided a transmission antenna selection apparatus applied to a terminal, including:

a signal transmitting module configured to transmit sounding reference signals SRS to a base station through a plurality of antennas in the terminal, respectively;

the information acquisition module is configured to acquire receiving quality information returned by the base station, wherein the receiving quality information is used for indicating the receiving quality of each SRS received by the base station;

And an antenna selection module configured to select at least one target antenna from the plurality of antennas as a transmitting antenna based on the reception quality information.

According to a fourth aspect of the present disclosure, there is provided an information transmitting apparatus applied to a base station, including:

a signal receiving module configured to receive sounding reference signals SRS transmitted from a plurality of antennas by a terminal;

an information transmission module configured to return reception quality information to the terminal based on the reception quality for each SRS; the receiving quality information is used for the terminal to select at least one target antenna from the plurality of antennas as a transmitting antenna.

According to a fifth aspect of the present disclosure, there is provided an electronic device comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor implements the method according to the first and/or second aspect by executing the executable instructions.

According to a sixth aspect of the present disclosure there is provided a computer readable storage medium having stored thereon computer instructions which when executed by a processor perform the steps of the method according to the first and/or second aspects.

In the technical scheme of the disclosure, the terminal can send SRS to the base station through different antennas, and according to the receiving quality information returned by the base station, the receiving quality of the base station to a plurality of SRS is determined, so that the target antenna is selected as the transmitting antenna according to the receiving quality of the base station. Compared with the terminal evaluating the uplink transmission quality according to the downlink reception quality of each antenna, the embodiment can accurately reflect the transmission quality of the terminal antenna through the reception quality of the SRS returned to the terminal by the base station by means of the SRS transmitted to the base station by the terminal, and avoid errors, so that the terminal can accurately select the transmission antenna and improve the uplink transmission quality.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

FIG. 1 is a schematic diagram of a terminal shown in an exemplary embodiment of the present disclosure;

fig. 2 is a schematic flow chart of a method of transmitting antenna selection shown in an exemplary embodiment of the present disclosure;

fig. 3 is a schematic flow chart of another transmit antenna selection method shown in an exemplary embodiment of the present disclosure;

fig. 4 is a schematic flow chart of another transmit antenna selection method shown in an exemplary embodiment of the present disclosure;

fig. 5 is a schematic flow chart diagram of another transmit antenna selection method shown in an exemplary embodiment of the present disclosure;

fig. 6 is a schematic flow chart diagram of another transmit antenna selection method shown in an exemplary embodiment of the present disclosure;

fig. 7 is a schematic flow chart diagram of another transmit antenna selection method shown in an exemplary embodiment of the present disclosure;

fig. 8 is a schematic block diagram of a transmitting antenna selecting apparatus according to an exemplary embodiment of the present disclosure;

fig. 9 is a schematic block diagram of another transmit antenna selection apparatus shown in an exemplary embodiment of the present disclosure;

Fig. 10 is a schematic block diagram of an apparatus for transmitting antenna selection, shown in accordance with an embodiment of the present disclosure;

fig. 11 is a schematic block diagram illustrating an apparatus for transmitting antenna selection according to an embodiment of the present disclosure.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context.

For terminals such as mobile phones, the location of the antennas in the terminal is fixed, for example, typically placed at the top and bottom of the mobile phone, where each antenna may act as a transmitting antenna or a receiving antenna. For example, the terminal shown in fig. 1 includes four antennas of 4 Ant0, ant1, ant2, ant 3.

In general, the quality of the transmission signal of different antennas is also different and is affected by various factors. For example, different holding scenes such as horizontal holding, vertical holding and the like of a user cause different attenuation of transmission to each antenna, or the directions of the antennas in the terminal and the relation between the directions of the antennas and the positions of the base stations, so that the transmission quality of the antennas is different; or performance properties of each antenna, and the like, may affect the transmission quality of each antenna.

In order to ensure the uplink transmission quality of the terminal, the terminal can switch the transmitting antennas in time along with the signal transmission quality change of each antenna, namely, select at least one antenna with better transmission signal quality to transmit. In order to avoid an error in the related art in evaluating the quality of the antenna transmission signal according to the quality of the antenna reception signal, the present embodiment uses the reception quality information of the SRS (Sounding Reference Signal ) transmitted by the base station reception terminal to evaluate the quality of the antenna transmission signal, so as to accurately select the antenna with better transmission signal quality as the transmission antenna.

Fig. 2 is a schematic flow chart of a method of transmitting antenna selection according to an exemplary embodiment of the present disclosure. The transmitting antenna selection method shown in the embodiment can be applied to a terminal, wherein the terminal comprises, but is not limited to, mobile phones, tablet computers, wearable devices, sensors, internet of things devices and other electronic devices. The terminal may communicate as a user equipment with base stations including, but not limited to, 4G base stations, 5G base stations, 6G base stations and core networks.

As shown in fig. 2, the method may include the steps of:

step S201: and respectively sending sounding reference signals SRS to the base station through a plurality of antennas in the terminal.

In one embodiment, a plurality of antennas are configured in the terminal, one or more of the plurality of antennas may be used as a transmitting antenna, and the specific number may be determined according to the transmitting capability of the terminal. Optionally, the number of uplink transmission channels in the terminal may be used to indicate the transmission capability of the terminal, for example, the number of uplink transmission channels is N, and the terminal may perform uplink transmission through N antennas at the same time.

Taking the terminal shown in fig. 1 as an example, if the number of uplink transmission paths of the terminal is 1, the terminal may use one antenna as a transmission antenna; if the number of uplink transmission channels of the terminal is 2, the terminal may use 2 antennas as transmission antennas.

The number of transmitting antennas in the above embodiment refers to the number of transmitting antennas simultaneously, that is, the number of antennas that the terminal can simultaneously perform uplink transmission.

In one embodiment, the terminal may transmit the SRS signal to the base station through a transmit antenna. In the related art, an SRS signal is generally used for a base station to evaluate the transmission quality of each antenna of the base station, for example, the base station receives SRS transmitted by the base station through a plurality of antennas, and then uses the reception quality of the SRS received by each antenna in the base station as the transmission quality of the antenna, so that the base station can select the transmission antenna.

In one example, the terminal may transmit the SRS signal through 1 antenna at a time, or may transmit the SRS signal through multiple antennas at the same time, which may be specifically determined according to the transmission capability of the terminal, which is not limited in this embodiment.

In one example, the terminal may refer to SRS resources configured by the base station when transmitting the SRS signal. One specific embodiment is described below in conjunction with fig. 3.

Fig. 3 is a schematic flow chart of a transmit antenna selection shown in an exemplary embodiment of the present disclosure. As shown in fig. 3, the sending, by a plurality of antennas in the terminal, sounding reference signals SRS to a base station respectively includes:

step S301: and receiving a plurality of SRS resources configured by the base station, wherein each SRS resource comprises an antenna identifier and a time-frequency resource corresponding to the antenna.

In one embodiment, the terminal receives the SRS resource issued by the base station in advance before transmitting the SRS to the base station.

In one embodiment, a base station may issue a set of SRS resources to a terminal, where the set of SRS resources includes a plurality of SRS resources. The plurality of SRS resources may correspond to a plurality of antennas configured in the terminal one-to-one, where each SRS resource includes an antenna identifier and a time-frequency resource corresponding to the antenna indicated by the identifier. The plurality of antennas may be all antennas in the terminal or may be part of the antennas.

Taking the terminal shown in fig. 1 as an example, the plurality of SRS resources configured by the base station may be as shown in table 1.

Time-frequency resource	Terminal physical antenna
		resource0	Ant0
resource1	Ant1
		resource2	Ant2
resource3	Ant3

TABLE 1

As shown in table 1, the system comprises 4 SRS resources corresponding to antennas Ant0, ant1, ant2 and Ant3 respectively, wherein the time-frequency resource corresponding to Ant0 is resource0; the time-frequency resource corresponding to Ant1 is resource1; the time-frequency resource corresponding to Ant2 is resource2; the time-frequency resource corresponding to Ant3 is resource3.

Step S302: and transmitting SRS signals to the base station based on the antenna indicated by each SRS resource and the time-frequency resource corresponding to the antenna.

In one embodiment, the terminal may transmit the SRS signal separately according to each SRS resource configured by the base station. And according to each SRS resource, transmitting SRS signals to the base station through the antenna indicated by the antenna identification in the SRS resource on the time-frequency resource included in the SRS resource.

Taking the embodiment shown in table 1 as an example, the terminal may send an SRS signal to the base station through Ant0 on resource0; transmitting an SRS signal to the base station through Ant1 on resource1; transmitting an SRS signal to the base station through Ant2 on resource2; the SRS signal is transmitted to the base station through Ant3 on resource3.

Taking a terminal in a 1T4R mode as an example, the base station may configure 4 SRS resources for the terminal, where each SRS resource corresponds to a different antenna, and the time domain resource of each SRS resource is different, for example, 4 different OFDM symbols in the time domain. Thus, the terminal can alternately transmit SRS signals on 4 antennas, 1 antenna at a time.

Step S202: and acquiring the receiving quality information returned by the base station, wherein the receiving quality information is used for indicating the receiving quality of each SRS received by the base station.

For convenience of description, SRS transmitted by a terminal through different antennas may be regarded as different SRS, for example, ant1 transmits SRS1 and Ant2 transmits SRS2. The different SRS is used herein to distinguish antennas, and the specific content of the SRS is not limited.

In an embodiment, after receiving a plurality of SRSs transmitted by a terminal from a plurality of antennas, the base station may determine the reception quality of each SRS separately, for example, may determine an evaluation parameter for each SRS, where the evaluation parameter may be RSRP (Reference Signal Receiving Power, reference signal received power) and/or SINR (Signal to Interference plus Noise Ratio ), or may take a weighted sum of the evaluation parameters such as RSRP and SINR as the reception quality of the SRS, and then the base station may return reception quality information to the terminal.

In one embodiment, the base station may carry the reception quality information through DCI (Downlink Control Information ), as described below in conjunction with fig. 4.

Fig. 4 is a schematic flow chart of another transmit antenna selection shown in an exemplary embodiment of the present disclosure. As shown in fig. 4, the acquiring the reception quality information includes:

step S401: and receiving Downlink Control Information (DCI) issued by the base station, wherein the DCI carries the receiving quality information.

In one embodiment, the base station may issue DCI to the terminal and carry the reception quality information in the DCI.

Based on this, in one embodiment, the terminal may receive DCI issued by the base station and parse the DCI to obtain the reception quality information, thereby determining the reception quality of the base station for the plurality of SRSs.

In one embodiment, the base station may carry the reception quality information through reserved bits in the existing DCI, e.g., may carry the reception quality information through the existing DCI format 0_1 or DCI format 1_1. Alternatively, the base station may also add a new DCI format to carry the reception quality information.

Here, the base station carries the reception quality information by DCI only as an example, and in practical application, the base station may also carry the reception quality information in other downlink information, which is not limited in this example.

Step S203: at least one target antenna is selected from the plurality of antennas as a transmitting antenna based on the reception quality information.

The reception quality of the base station for different SRS may reflect the transmission quality of each antenna of the terminal. The higher the reception quality of the SRS by the base station, the higher the transmission quality of the antenna for transmitting the SRS by the terminal, and therefore, the terminal can select the transmission antenna according to the reception quality of different SRS by the base station.

In one embodiment, the terminal may determine the transmission quality of each antenna according to the reception quality of the SRS transmitted by the base station to each antenna. Therefore, the terminal can select the antenna with the transmission quality meeting the preset requirement as the transmission antenna according to the transmission quality of each antenna.

In one embodiment, the terminal may determine the number of target antennas to select based on the number of uplink transmit paths. Wherein, the uplink transmission path is connected with the antenna, and the number of the uplink transmission paths can indicate the transmission capability of the terminal. For example, if the number of uplink transmission paths in the terminal is 1, the terminal transmits information through 1 antenna; if the number of uplink transmission paths in the terminal is 2, the terminal can transmit information through 2 antennas at the same time. Based on the number of uplink transmission paths, e.g., N, the terminal may determine target antennas matching the number, e.g., determine N target antennas, from among the antennas used for transmitting the SRS.

In one example, when determining the target antenna, the terminal may use the antenna that transmits the SRS as the target antenna according to the reception quality of the SRS transmitted by the base station to different antennas, if the reception quality of the SRS meets a preset requirement. The preset requirement can be determined according to actual conditions, for example, the preset requirement can be an antenna corresponding to at least one SRS with the highest receiving quality; or may be an antenna corresponding to an SRS whose reception quality exceeds the reception quality specified value of the currently used antenna, etc., the present embodiment is not limited.

In one example, if the target antenna selected by the terminal is the same as the antenna currently being used by the terminal (i.e., currently connected to the uplink transmission path), the terminal does not need to switch; if the selected target antenna is different from the antenna currently being used by the terminal, the terminal may perform transmission antenna switching to connect the uplink transmission path to the selected target antenna.

According to the embodiment shown in fig. 2, the terminal may transmit SRS to the base station through different antennas, and determine the reception quality of the base station for the plurality of SRS according to the reception quality information returned by the base station, so as to select the target antenna as the transmitting antenna according to the reception quality of the base station. Compared with the terminal evaluating the uplink transmission quality according to the downlink reception quality of each antenna, the embodiment can accurately reflect the transmission quality of the terminal antenna through the reception quality of the SRS returned to the terminal by the base station by means of the SRS transmitted to the base station by the terminal, and avoid errors, so that the terminal can accurately select the transmission antenna and improve the uplink transmission quality.

In one embodiment, the SRS resource transmitted by the base station may be periodic, so that the terminal may periodically transmit an SRS signal to the base station according to the configured SRS resource, and select the transmitting antenna according to the reception quality information returned by the base station according to the method of the embodiment shown in fig. 2.

In one embodiment, the reception quality information transmitted from the base station to the terminal may have various forms, for example, the reception quality information may include at least one of the following: the base station sequences the receiving quality of SRS corresponding to the plurality of antennas; the base station indicates the receiving quality of SRS corresponding to each antenna; and receiving quality indication information corresponding to at least one SRS of which the receiving quality is larger than a preset threshold value by the base station. The method for selecting the target antenna by the terminal may also be different based on different forms of reception quality information, and three specific embodiments are described below.

Example 1: the reception quality information includes a reception quality ordering of the SRS corresponding to the plurality of antennas by the base station.

In one example, after receiving the SRS, the base station may first determine the antenna corresponding to the SRS, and then rank the antennas according to the reception quality of receiving each SRS. The antennas may be ordered, for example, from high to low reception quality, or from low to high reception quality.

Taking the terminal shown in fig. 1 as an example, the base station may respectively receive SRS transmitted from 4 antennas of Ant0-Ant3 by the terminal. After receiving the 4 paths of SRS, the base station may determine the antennas corresponding to each SRS, and then sort the antennas according to the receiving quality of the SRS, for example, ant0, ant1, ant2, ant3.

In one embodiment, after ordering the antennas, the base station may send the identities of the antennas to the terminal in order from high to low or from low to high, e.g. for the above-mentioned ordering "Ant0, ant1, ant2, ant3", the base station may determine the identities of the 4 antennas as 0, 1, 2, 3, respectively, and send "0123" to the terminal. Alternatively, in one example, the base station may also send the identifier corresponding to the ranking to the terminal. For example, the base station and the terminal negotiate in advance to determine the identifiers corresponding to the different ranking combinations, for example, the identifier "0" corresponds to the ranks "Ant0, ant1, ant2, ant3" described above, the identifier "1" corresponds to the ranks "Ant0, ant1, ant3, ant2" …, etc., and the base station may send "0" to the terminal, so that the terminal determines that the reception quality of the base station is ranked as "Ant0, ant1, ant2, ant3" from high to low according to the identifier "0".

In one embodiment, the terminal may directly use N antennas with the best reception quality of the transmitted SRS as the target antennas according to the reception quality ranking sent by the base station, where N is the number of uplink transmission channels in the terminal. Taking N as 1 as an example, the terminal may take "Ant0" as the target antenna according to the above-mentioned ranking.

Example 2: the reception quality information includes reception quality indication information of the SRS corresponding to each antenna by the base station.

In one example, after receiving the SRS, the base station may determine an antenna corresponding to the SRS, and then, for each SRS, directly return the antenna corresponding to the SRS and the reception quality indication information of the SRS to the terminal, where the reception quality indication information may include RSRP and/or SINR, for example. Taking RSRP as an example of the reception quality, the base station may return the reception quality information as shown in table 2.

Terminal physical antenna	RSRP(db)
		Ant0	-50
Ant1	-55
		Ant2	-60
Ant3	-65

TABLE 2

In one example, the terminal may receive the reception quality indication information corresponding to each antenna returned by the base station, and determine the reception quality of each antenna by the base station.

In one example, the terminal may determine the target antenna according to the reception quality of each antenna and a preset value. For example, the terminal may use an antenna whose reception quality exceeds a currently used antenna reception quality preset value as the target antenna. The preset value is not less than 0, that is, the receiving quality of the target antenna is higher than that of the currently used antenna, and the difference value between the target antenna and the currently used antenna is larger than the preset value.

Still taking table 2 as an example, for example, the terminal currently uses antenna Ant2, the preset value is 5db, and the terminal can respectively make the RSRP of other antennas different from-60, and it can be obtained that the difference between the RSRP (-50) of Ant0 and-60 is 10db and greater than 5db. Thus, the terminal may determine Ant0 as the target antenna.

In one example, if the number of target antennas determined by the terminal is greater than the transmission capability, the terminal may select target antennas matching the number of uplink transmission paths in order of higher reception quality.

It should be noted that, only one antenna is used as the transmitting antenna by the terminal, and in practical application, the terminal may also use multiple antennas and determine the target antenna by adopting a corresponding method, which is not described herein.

Example 3: the reception quality information includes reception quality indication information corresponding to at least one SRS whose reception quality of the base station is greater than a preset threshold.

In one example, the base station may pre-determine the preset threshold, e.g., may be determined by negotiating with the terminal, or may be determined according to a protocol, etc.

In one example, after receiving the SRS, the base station may determine an antenna corresponding to the SRS, and then determine, for each SRS, whether the reception quality is greater than a preset threshold. Thus, for the SRS with the reception quality greater than the preset threshold, the base station may return the antenna identifier corresponding to the SRS and the reception quality indication information of the SRS to the terminal. Compared with the method that the base station returns the receiving quality indication information corresponding to all SRS to the terminal, the method of the embodiment can reduce the transmission data quantity and save the signaling overhead.

In one example, the terminal may receive the reception quality indication information corresponding to each antenna returned by the base station, and determine the reception quality of each antenna by the base station. Thus, the terminal can determine the target antenna according to the reception quality of each antenna and the preset value. Specific methods can be found in example 2, and will not be described here again.

It should be noted that the above three embodiments are only exemplary, and the base station may also send the information of the SRS reception quality to the terminal through other forms, so that the terminal may determine, as the transmitting antenna, at least one antenna with better SRS reception quality to be sent, thereby avoiding the problem of inaccuracy caused by performing the evaluation by using channel reciprocity, and improving the uplink transmission quality.

Fig. 5 is a schematic flow chart diagram of a method of transmitting antenna selection according to an exemplary embodiment of the present disclosure. The transmission antenna selection method shown in the present embodiment may be applied to base stations including, but not limited to, 4G base stations, 5G base stations, and 6G base stations. The base station may communicate with terminals as user devices, including but not limited to, cell phones, tablet computers, wearable devices, sensors, internet of things devices, and the like. In one embodiment, the terminal may be a terminal to which the method for selecting a transmitting antenna according to any one of the foregoing embodiments is applied.

As shown in fig. 5, the method may include the steps of:

step S501: the reception terminal receives sounding reference signals SRS transmitted from a plurality of antennas.

In one embodiment, a terminal is configured with a plurality of antennas and may transmit SRS signals to a base station through the plurality of transmit antennas.

In one embodiment, a base station may receive SRS signals transmitted by a terminal through multiple transmit antennas.

Step S502: and returning receiving quality information to the terminal based on the receiving quality of each SRS.

In one embodiment, after receiving a plurality of SRS transmitted from a plurality of antennas by a terminal, the base station may determine the reception quality of each SRS, and may use RSRP and/or SINR, for example, as the reception quality of the SRS. Based on the reception quality of each SRS, the base station may return reception quality information for the SRS to the terminal.

In one embodiment, the reception quality information is used for the terminal to select at least one target antenna from the plurality of antennas as a transmitting antenna. For example, the terminal may screen out at least one antenna corresponding to the SRS with better reception quality from the SRS reception quality information returned by the terminal, and use the antenna as a transmitting antenna, and then may perform uplink transmission through the transmitting antenna, so as to improve uplink transmission quality. The method for selecting the terminal may refer to a terminal side embodiment, and will not be described herein.

According to the embodiment shown in fig. 5, after receiving the SRS transmitted by the terminal, the base station determines the transmitting antenna of the base station according to the receiving quality of the received SRS, and transmits the receiving quality information to the terminal, so that the terminal can determine the transmitting antenna of the terminal based on the receiving quality information, and therefore, the antenna with better transmitting quality can be accurately selected, and the uplink transmission quality is improved.

In one embodiment, the base station may carry the reception quality information through DCI. In one example, the base station issues downlink control information DCI to the terminal, where the DCI carries the reception quality information.

Fig. 6 is a schematic flow chart diagram of another transmit antenna selection method shown in an exemplary embodiment of the present disclosure. As shown in fig. 6, the method further includes:

step S601: and configuring a plurality of SRS resources for the terminal, wherein each SRS resource comprises an antenna identifier in the terminal and a time-frequency resource corresponding to the antenna.

In one embodiment, a base station may issue a set of SRS resources to a terminal, where the set of SRS resources includes a plurality of SRS resources, where each SRS resource corresponds to one antenna in the terminal. For example, may be in one-to-one correspondence with all or part of the antennas in the terminal.

Based on this, the terminal can transmit the SRS signal based on the plurality of SRS resources, respectively, and transmit the SRS signal to the base station on the time-frequency resource included in the SRS resource based on each SRS resource via the antenna indicated by the antenna identification in the SRS resource.

Fig. 7 is a schematic flow chart diagram of another transmit antenna selection method shown in an exemplary embodiment of the present disclosure. As shown in fig. 7, the returning of the reception quality information to the terminal based on the reception quality of each SRS includes:

step S701: for each received SRS, determining an antenna for the terminal to transmit the SRS according to the time-frequency resource for receiving the SRS.

In one embodiment, the terminal may transmit the SRS signal according to the SRS resource, that is, the time-frequency resource for transmitting the SRS has a correspondence with the transmitting antenna. Based on this, after receiving the SRS signal, the base station may query, according to the time-frequency resource for receiving the SRS, an antenna corresponding to the time-frequency resource in the SRS resource (that is, an antenna belonging to the same SRS resource as the time-frequency resource), and determine an antenna in the terminal for transmitting the SRS signal.

Step S702: and returning receiving quality information to the terminal, wherein the receiving quality information is used for indicating the receiving quality corresponding to each antenna.

In one embodiment, the base station may determine the reception quality of the SRS transmitted by each antenna, and then return reception quality information to the terminal for indicating the reception quality corresponding to each antenna, that is, indicating the reception quality of the SRS transmitted by the antenna.

In one embodiment, the reception quality information may include at least one of: sequencing the receiving quality of SRS corresponding to the plurality of antennas; receiving quality indication information of SRS corresponding to each antenna; and receiving the receiving quality indication information corresponding to at least one SRS with the receiving quality larger than a preset threshold value.

For different forms of receiving quality information, the terminal may select the target antenna by adopting a corresponding method, and specific reference may be made to a terminal side embodiment, which is not described herein.

Fig. 8 is a schematic block diagram of a transmitting antenna selection apparatus according to an exemplary embodiment of the present disclosure. The transmitting antenna selection device shown in the embodiment can be applied to a terminal, and the terminal includes, but is not limited to, mobile phones, tablet computers, wearable devices, sensors, internet of things devices and other electronic devices. The terminal may communicate as a user equipment with base stations including, but not limited to, 4G base stations, 5G base stations, 6G base stations and core networks.

As shown in fig. 8, the apparatus may include:

a signal transmitting module 801 configured to transmit sounding reference signals SRS to a base station through a plurality of antennas in the terminal, respectively;

an information obtaining module 802, configured to obtain reception quality information returned by the base station, where the reception quality information is used to indicate reception quality of each SRS received by the base station;

an antenna selection module 803 configured to select at least one target antenna from the plurality of antennas as a transmitting antenna based on the reception quality information.

In one embodiment, the signal sending module 801 is specifically configured to:

receiving a plurality of SRS resources configured by a base station, wherein each SRS resource comprises an antenna identifier and a time-frequency resource corresponding to the antenna;

and transmitting SRS signals to the base station based on the antenna indicated by each SRS resource and the time-frequency resource corresponding to the antenna.

In one embodiment, the information acquisition module 802 is specifically configured to: and receiving Downlink Control Information (DCI) issued by the base station, wherein the DCI carries the receiving quality information.

In one embodiment, the reception quality information includes at least one of:

The base station sequences the receiving quality of SRS corresponding to the plurality of antennas;

the base station indicates the receiving quality of SRS corresponding to each antenna;

and receiving quality indication information corresponding to at least one SRS of which the receiving quality is larger than a preset threshold value by the base station.

In one embodiment, the antenna selection module 803 is specifically configured to:

determining the number of uplink transmission channels in the terminal;

determining target antennas matched with the number from the plurality of antennas as transmitting antennas; the receiving quality of the SRS sent by the target antenna by the base station accords with a preset condition.

Fig. 9 is a schematic block diagram of a transmitting antenna selection apparatus according to an exemplary embodiment of the present disclosure. The transmitting antenna selection apparatus shown in this embodiment may be applied to base stations including, but not limited to, 4G base stations, 5G base stations, 6G base stations. The base station may communicate with terminals as user devices, including but not limited to, cell phones, tablet computers, wearable devices, sensors, internet of things devices, and the like. In one embodiment, the terminal may be a terminal to which the transmitting antenna selecting apparatus according to any one of the above embodiments is applied.

As shown in fig. 9, the apparatus may include:

a signal receiving module 901 configured to receive sounding reference signals SRS transmitted from a plurality of antennas by a terminal;

an information sending module 902 configured to return reception quality information to the terminal based on the reception quality of each SRS; the receiving quality information is used for the terminal to select at least one target antenna from the plurality of antennas as a transmitting antenna.

In one embodiment, the information sending module 902 is specifically configured to:

and transmitting Downlink Control Information (DCI) to the terminal, wherein the DCI carries the receiving quality information.

In one embodiment, the apparatus further comprises:

the resource allocation module 903 is configured to allocate a plurality of SRS resources for the terminal, where each SRS resource includes an antenna identifier in the terminal and a time-frequency resource corresponding to the antenna.

for each received SRS, determining an antenna for the terminal to send the SRS according to the time-frequency resource for receiving the SRS;

and returning receiving quality information to the terminal, wherein the receiving quality information is used for indicating the receiving quality information corresponding to each antenna.

In one embodiment, the reception quality information includes at least one of: sequencing the receiving quality of SRS corresponding to the plurality of antennas; receiving quality indication information of SRS corresponding to each antenna; and receiving the receiving quality indication information corresponding to at least one SRS with the receiving quality larger than a preset threshold value.

For the device embodiments, reference is made to the description of the method embodiments for the relevant points, since they essentially correspond to the method embodiments. The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the objectives of the disclosed solution. Those of ordinary skill in the art will understand and implement the present invention without undue burden.

Accordingly, the present disclosure also provides an electronic device, including: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to implement a transmit antenna selection method as described in any of the above embodiments.

Accordingly, the present disclosure also provides a computer-readable storage medium having stored thereon computer instructions which, when executed by a processor, implement the steps of a transmit antenna selection method as described in any of the above embodiments.

Fig. 10 is a block diagram illustrating an apparatus 1000 for implementing a transmit antenna selection method according to an example embodiment. For example, apparatus 1000 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, exercise device, personal digital assistant, or the like.

Referring to fig. 10, the apparatus 1000 may include one or more of the following components: a processing component 1002, a memory 1004, a power component 1006, a multimedia component 1008, an audio component 1010, an input/output (I/O) interface 1012, a sensor component 1014, and a communication component 1016.

The processing component 1002 generally controls overall operation of the apparatus 1000, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 1002 can include one or more processors 1020 to execute instructions to perform all or part of the steps of the transmit antenna selection method described above. Further, the processing component 1002 can include one or more modules that facilitate interaction between the processing component 1002 and other components. For example, the processing component 1002 can include a multimedia module to facilitate interaction between the multimedia component 1008 and the processing component 1002.

The memory 1004 is configured to store various types of data to support operations at the apparatus 1000. Examples of such data include instructions for any application or method operating on the device 1000, contact data, phonebook data, messages, pictures, videos, and the like. The memory 1004 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

The power supply component 1006 provides power to the various components of the device 1000. The power components 1006 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 1000.

The multimedia component 1008 includes a screen between the device 1000 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or slide action, but also the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia assembly 1008 includes a front-facing camera and/or a rear-facing camera. The front camera and/or the rear camera may receive external multimedia data when the apparatus 1000 is in an operation mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

The audio component 1010 is configured to output and/or input audio signals. For example, the audio component 1010 includes a Microphone (MIC) configured to receive external audio signals when the device 1000 is in an operational mode, such as a call mode, a recording mode, and a speech recognition mode. The received audio signals may be further stored in memory 1004 or transmitted via communication component 1016. In some embodiments, the audio component 1010 further comprises a speaker for outputting audio signals.

The I/O interface 1012 provides an interface between the processing assembly 1002 and peripheral interface modules, which may be a keyboard, click wheel, buttons, and the like. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.

The sensor assembly 1014 includes one or more sensors for providing status assessment of various aspects of the device 1000. For example, the sensor assembly 1014 may detect an on/off state of the device 1000, a relative positioning of the components, such as a display and keypad of the device 1000, the sensor assembly 1014 may also detect a change in position of the device 1000 or a component of the device 1000, the presence or absence of user contact with the device 1000, an orientation or acceleration/deceleration of the device 1000, and a change in temperature of the device 1000. The sensor assembly 1014 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. The sensor assembly 1014 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 1014 can also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 1016 is configured to facilitate communication between the apparatus 1000 and other devices, either wired or wireless. The apparatus 1000 may access a wireless network based on a communication standard, such as WiFi,2G or 3G,4G LTE, 5G NR (New Radio), or a combination thereof. In one exemplary embodiment, the communication component 1016 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 1016 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the apparatus 1000 may be implemented by 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), controllers, microcontrollers, microprocessors, or other electronic elements for performing the above-described transmit antenna selection method.

In an exemplary embodiment, a non-transitory computer readable storage medium is also provided, such as memory 1004, including instructions executable by processor 1020 of apparatus 1000 to perform the above-described transmit antenna selection method. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

As shown in fig. 11, fig. 11 is a schematic block diagram illustrating an apparatus 1100 for transmitting antenna selection according to an embodiment of the present disclosure. The apparatus 1100 may be provided as a base station. Referring to fig. 11, the apparatus 1100 includes a processing component 1122, a wireless transmit/receive component 1124, an antenna component 1126, and a signal processing portion specific to a wireless interface, which processing component 1122 may further include one or more processors. One of the processors in processing component 1122 may be configured to implement a transmit antenna selection method.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

The foregoing description of the preferred embodiments of the present disclosure is not intended to limit the disclosure, but rather to cover all modifications, equivalents, improvements and alternatives falling within the spirit and principles of the present disclosure.

Claims

1. A method for selecting a transmitting antenna, the method being applied to a terminal, the method comprising:

2. The method of claim 1, wherein the transmitting the sounding reference signal SRS to the base station through the plurality of antennas in the terminal, respectively, comprises:

3. The method of claim 1, wherein the obtaining the reception quality information returned by the base station comprises:

and receiving Downlink Control Information (DCI) issued by the base station, wherein the DCI carries the receiving quality information.

4. The method of claim 1, wherein the reception quality information comprises at least one of:

5. The method of claim 1, wherein the selecting at least one target antenna from the plurality of antennas as a transmitting antenna based on the reception quality information comprises:

determining the number of uplink transmission channels in the terminal;

6. A method for selecting a transmitting antenna, the method being applied to a base station, the method comprising:

returning receiving quality information to the terminal based on the receiving quality of each SRS; the receiving quality information is used for the terminal to select at least one target antenna from the plurality of antennas as a transmitting antenna.

7. The method of claim 6, wherein the returning of the reception quality information to the terminal comprises:

8. The method of claim 6, wherein the method further comprises:

and configuring a plurality of SRS resources for the terminal, wherein each SRS resource comprises an antenna identifier in the terminal and a time-frequency resource corresponding to the antenna.

9. The method of claim 8, wherein the returning the reception quality information to the terminal based on the reception quality for each SRS comprises:

10. The method of claim 6, wherein the reception quality information comprises at least one of:

sequencing the receiving quality of SRS corresponding to the plurality of antennas;

receiving quality indication information of SRS corresponding to each antenna;

and receiving the receiving quality indication information corresponding to at least one SRS with the receiving quality larger than a preset threshold value.

11. A transmitting antenna selecting apparatus, applied to a terminal, comprising:

12. A transmitting antenna selection apparatus, characterized by being applied to a base station, comprising:

13. An electronic device, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to implement the transmit antenna selection method of any of claims 1-10 by executing the executable instructions.

14. A computer readable storage medium having stored thereon computer instructions which, when executed by a processor, implement the steps of the transmit antenna selection method according to any of claims 1-10.