Terminal communication control method, communication device and storage medium

Abstract

Embodiments of the present invention provide a terminal communication control method, communication device, and storage medium. During communication between a terminal and a base station using a MIMO operating mode, the terminal can send reception quality feedback information to the base station, using the reception quality feedback information to provide the base station with feedback on the reception quality of its MIMO antenna for downlink signals. Thus, when the base station determines, based on the terminal's reception quality feedback information, that the current signal quality is unsuitable for continued MIMO communication with the terminal, it can send a mode adjustment instruction to the terminal, causing the terminal to exit the MIMO operating mode and employ an antenna in the MIMO antenna as a secondary antenna to receive downlink signals together with the primary antenna, thereby achieving receive diversity. This increases the gain of the receive antenna, enhances signal reception quality, improves the terminal's receive sensitivity, and improves the user's communication experience. Furthermore, because the MIMO antenna continues to participate in communications even after the terminal exits the MIMO operating mode, it is not idle, thereby improving antenna resource utilization.

Description

Technical Field

[0001] The embodiments of the present invention relate to, but are not limited to, the field of communications, and specifically, to, but are not limited to, a terminal communication control method, a communication device, and a storage medium. Background Art

[0002] Currently, terminals are equipped with MIMO (multiple-in, multiple-out) antennas. In scenarios with good communication quality, terminals can operate in MIMO mode, transmitting multiple signals simultaneously with the base station to increase signal transmission rates. However, in weak signal scenarios, or when communication quality is poor, signal transmission between the terminal and the base station can be accompanied by high bit error rates, which can affect communication performance. Summary of the Invention

[0003] The terminal communication control method, communication device, and storage medium provided by the embodiments of the present invention mainly solve the technical problem of how to improve the communication quality in weak signal scenarios.

[0004] To solve the above technical problems, an embodiment of the present invention provides a terminal communication control method, including:

[0005] When the terminal's multiple-input multiple-output (MIMO) antenna is in MIMO mode, it sends reception quality feedback information to the base station. The reception quality feedback information is used to indicate the reception quality of the MIMO antenna for the signal sent by the base station.

[0006] receiving a mode adjustment instruction sent by a base station, where the mode adjustment instruction can indicate that the reception quality does not meet the requirements of the MIMO working mode;

[0007] According to the mode adjustment instruction, the main antenna and the auxiliary antenna are used to jointly receive the downlink signal sent by the base station, and the auxiliary antenna is the antenna in the MIMO antenna;

[0008] The received signals from the main antenna and the auxiliary antenna are diversity combined and processed.

[0009] An embodiment of the present invention further provides a terminal communication control method, comprising:

[0010] Reception quality feedback information sent by a receiving terminal when its MIMO antenna is in MIMO operating mode. The reception quality feedback information is used to indicate the reception quality of the MIMO antenna for the signal sent by the base station;

[0011] Determining that the reception quality represented by the reception quality feedback information does not meet the requirements of the MIMO working mode;

[0012] A mode switching instruction is sent to the terminal. The mode switching instruction is used to instruct the terminal to use the main antenna and the auxiliary antenna to jointly receive the downlink signal sent by the base station to achieve receive diversity. The auxiliary antenna is the antenna in the MIMO antenna.

[0013] An embodiment of the present invention further provides a communication device, the communication device including a processor, a memory, and a communication bus;

[0014] The communication bus is used to realize the connection and communication between the processor and the memory;

[0015] The processor is used to execute the first terminal communication control program stored in the memory to implement the steps of the above-mentioned first terminal communication control method; or, the processor is used to execute the second terminal communication control program stored in the memory to implement the steps of the above-mentioned second terminal communication control method.

[0016] An embodiment of the present invention also provides a storage medium, which stores at least one of a first terminal communication control program and a second terminal communication control program. The first terminal communication control program can be executed by one or more processors to implement the steps of the above-mentioned first terminal communication control method, and the second terminal communication control program can be executed by one or more processors to implement the steps of the above-mentioned second terminal communication control method.

[0017] The terminal communication control method, communication device, and storage medium provided by the embodiments of the present invention enable the terminal to send reception quality feedback information to the base station during communication between the terminal and the base station using the MIMO operating mode. This information provides feedback to the base station on the reception quality of the signal transmitted by the base station using its MIMO antenna. Thus, when the base station determines, based on the terminal's reception quality feedback information, that the current signal quality is not suitable for continued MIMO communication with the terminal, it can send a mode adjustment instruction to the terminal, causing the terminal to exit the MIMO operating mode according to the mode adjustment instruction and use an antenna in the MIMO antenna as a secondary antenna to receive downlink signals together with the primary antenna, thereby achieving receive diversity. This increases the gain of the receive antenna, enhances signal reception quality, improves the terminal's receive sensitivity, and enhances the communication experience of users on the terminal side. Furthermore, because the MIMO antenna continues to participate in communication after the terminal exits the MIMO operating mode, it is not idle, thereby improving the utilization of antenna resources.

[0018] Other features and corresponding beneficial effects of the present invention are described in the latter part of the specification, and it should be understood that at least some of the beneficial effects become obvious from the description in the specification of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an interactive flow chart of the terminal communication control method provided in the first embodiment of the present invention;

[0020] Figure 2 This is an interactive flow chart of the terminal communication control method provided in the second embodiment of the present invention;

[0021] Figure 3 A schematic diagram of the hardware structure of the communication device provided in the third embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of a communication system provided in Embodiment 3 of the present invention. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the following is a further detailed description of the embodiments of the present invention through specific implementation methods in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] Example 1:

[0025] In order to solve the problem in the related art that the terminal and the base station still use MIMO communication in a weak signal scenario, the bit error rate is high and the communication quality is poor, this embodiment provides a terminal communication control solution, which is implemented by the cooperation of the terminal and the base station. Figure 1 The following diagram illustrates the interaction flow between the terminal and the base station in the terminal communication control scheme:

[0026] S102: When the terminal is in the MIMO working mode, it sends reception quality feedback information to the base station.

[0027] A MIMO antenna is deployed on a terminal. The MIMO antenna typically includes multiple antennas. In this embodiment, the MIMO antenna includes at least two antennas. When the terminal is in MIMO operating mode, each antenna in the MIMO antenna transmits a different signal, and the signal transmission quality of each antenna in the MIMO antenna is also different. In this embodiment, to determine the reception quality of each antenna in the MIMO antenna, the terminal can measure the reception quality of the antennas in the MIMO antenna. In some examples of this embodiment, the reception quality can be characterized by at least one of several reception parameters, such as received signal strength, SNR (Signal Noise Ratio), and SIR (Signal Inference Ratio). For example, in an LTE (Long Term Evolution) communication system, the received signal strength can be characterized by RSRP (Reference Signal Receiving Power). Therefore, the terminal can measure the RSRP of each antenna in the MIMO antenna to reflect the reception quality of each antenna. For example, in a New Radio (NR) communication system, a terminal may measure the SNR and / or SIR of a MIMO antenna to obtain the reception quality of each antenna.

[0028] After measuring the reception quality of the MIMO antennas, the terminal generates reception quality feedback information based on the measured parameters. The reception quality feedback information is used to provide feedback to the base station on the reception quality of the signals sent by the base station. In some examples of this embodiment, the reception quality feedback information includes the measured reception parameter values ​​of the antennas in the MIMO antennas. In other examples of this embodiment, the terminal may first process the measured reception parameter values ​​of each antenna in the MIMO antennas and then include the processing results in the reception quality feedback information.

[0029] Optionally, each of the multiple antennas in the MIMO antenna may have corresponding reception quality feedback information, that is, the mapping relationship between the antenna and the reception quality feedback information is one-to-one. In other examples, the reception quality feedback information corresponding to some antennas may also be merged together. In this case, the terminal may still generate multiple reception quality feedback information, but the number of reception quality feedback information is less than the number of antennas in the MIMO antenna. In some other examples, the terminal only generates one reception quality feedback information for the MIMO antenna. In this one reception quality feedback information, the terminal can carry information that can characterize the reception quality of all antennas in the MIMO antenna, for example, carrying the measurement value of the reception parameter corresponding to each antenna.

[0030] If a terminal generates more than one piece of reception quality feedback information, the terminal can send these pieces of reception quality feedback information to the base station using the same channel at different times, or can send them to the base station using different channels at the same time. Alternatively, the terminal can send them to the base station using different channels at different times. In one example of this embodiment, each antenna in the MIMO antenna has unique corresponding reception quality feedback information. In this case, the terminal can control the MIMO antenna to operate in MIMO mode and simultaneously send each piece of reception quality feedback information to the base station. In this case, antenna a in the MIMO antenna is used to send the reception quality feedback information corresponding to antenna a to the base station, while antenna b is used to send the reception quality feedback information corresponding to antenna b to the base station.

[0031] In some examples of this embodiment, the terminal may use an SRS (Sounding Reference Signal) to send reception quality feedback information to the base station. Specifically, the terminal includes the reception quality feedback information in the SRS and sends it to the base station. In NR communication systems, the SRS is used by the base station to detect the terminal's location and channel quality. The terminal controls each antenna to transmit the SRS to the base station. The base station then receives the SRS signals transmitted by each terminal antenna, thereby evaluating the channel for each antenna and allocating downlink resources based on the channel evaluation results to achieve optimal throughput. It is understood that the more antennas that can participate in transmitting the sounding reference signal in the SRS mode, the more accurate the base station's channel estimation results. Therefore, for a terminal's MIMO antennas, each MIMO antenna transmits an SRS to the base station. Therefore, each MIMO antenna can include its corresponding reception quality feedback information in the SRS it transmits to the base station, along with the SRS. This allows the base station to understand the reception status of the signal transmitted by that antenna while performing channel evaluation.

[0032] S104: The base station determines that the reception quality represented by the reception quality feedback information does not meet the requirements of the MIMO working mode.

[0033] After receiving the reception quality feedback information sent by the terminal, the base station can determine whether the terminal's current reception quality of the base station's downlink signal meets the requirements of the MIMO working mode. Optionally, the base station can set a corresponding reception parameter threshold for the reception parameter to determine whether the reception parameter corresponding to the reception quality feedback information reaches the corresponding reception parameter threshold. It is understandable that if the terminal measures two or more reception parameters of the antenna during the measurement process, the base station side will set a corresponding reception parameter threshold for each reception parameter. For example, if the terminal measures the SNR and received signal strength of the MIMO antenna at the same time, the base station side will set an SNR threshold for the SNR and a received signal strength threshold for the received signal strength.

[0034] Furthermore, if the reception quality feedback information carries reception parameters corresponding to an antenna, the base station can first process these reception parameters at the granularity of the MIMO antenna as a whole when determining whether the reception quality represented by the reception quality feedback information meets the requirements of the MIMO operating mode. For example, the base station can calculate the sum or mean of these reception parameters. This allows the parameters originally processed at the granularity of a single MIMO antenna to be processed at the granularity of the MIMO antenna as a whole. This allows a clear result to be obtained in a single comparison when comparing these parameters with the corresponding reception parameter threshold. For example, assuming that a terminal has four MIMO antennas, the terminal will obtain four SNR values ​​when measuring the antenna SNR. After obtaining the SNR values ​​of each of the four antennas from the reception quality feedback information, the base station can calculate the mean of these four SNR values ​​to obtain the mean SNR for the MIMO antennas, and then compare this mean SNR with the SNR threshold. If the SNR mean is greater than or equal to the SNR threshold, the base station can determine that the current reception quality of the terminal meets the requirements of the MIMO working mode. Conversely, if the SNR mean is lower than the SNR threshold, the base station can determine that the current reception quality of the terminal does not meet the requirements of the MIMO working mode.

[0035] In some other examples of this embodiment, the base station may compare the reception parameters of each antenna in the MIMO antenna with the reception parameter threshold, and then calculate the comparison results to determine whether a preset ratio or a preset number of reception parameters are lower than the reception parameter threshold. If so, it is determined that the reception quality of the terminal's MIMO antenna does not meet the requirements of the MIMO operating mode. Otherwise, it is determined that the reception quality of the terminal meets the requirements of the MIMO operating mode. For example, assuming that the terminal has three or five MIMO antennas, the base station may compare the relationship between the reception parameters corresponding to each antenna and the reception parameter threshold. If it is determined that the reception parameters corresponding to at least two antennas are lower than the reception parameter threshold, it is determined that the current reception quality of the terminal does not meet the requirements of the MIMO operating mode.

[0036] S106: The base station sends a mode switching instruction to the terminal.

[0037] If the base station determines that the terminal's current reception quality does not meet the requirements of MIMO operating mode, it can send a mode switching command to the terminal. This mode switching command causes the terminal to exit MIMO operating mode and instead use the primary and secondary antennas to implement receive diversity for the base station's received signals. In this embodiment, for ease of description, the operating mode in which the terminal uses both the primary and secondary antennas to receive downlink signals to implement receive diversity is referred to as "diversity operating mode."

[0038] S108: The terminal uses the main antenna and the auxiliary antenna to jointly receive the downlink signal sent by the base station according to the mode adjustment instruction.

[0039] After receiving the mode switching command from the base station, the terminal may determine that the received command no longer meets the requirements of the MIMO operating mode. Therefore, it will no longer communicate with the base station in MIMO mode. Instead, it will determine the secondary antenna from the MIMO antennas and use this secondary antenna together with the primary antenna to receive the downlink signal sent by the base station. In this embodiment, the primary antenna refers to the terminal's transmit antenna, which is also the terminal's primary receive antenna.

[0040] It is understandable that the number of auxiliary antennas may be one or more than one. For example, in one example of this embodiment, the terminal determines two auxiliary antennas from the MIMO antennas.

[0041] The secondary antenna can be selected and determined by the terminal independently. For example, the terminal can randomly determine the secondary antenna from the MIMO antennas. Or the terminal can select the antenna with the largest or smallest serial number as the secondary antenna based on the serial number of each antenna. In some other examples, the terminal can select the secondary antenna based on the reception parameters of each antenna in the MIMO antenna, so that the terminal can select the antenna with relatively good reception quality for the signal sent by the base station as the secondary antenna. For example, in one example of this embodiment, the reception parameter measured by the terminal is SNR, and the terminal can select the one with the highest SNR value among the MIMO antennas as the secondary antenna. Of course, in other examples, the terminal does not necessarily have to select the antenna with the highest SNR value as the secondary antenna. For example, the one with the second highest SNR value can also be used. In some other examples, the terminal measures more than one reception parameter. In this case, the terminal can comprehensively consider the various parameters of each antenna to determine the overall reception condition of the antenna, and then select the antenna with better or optimal comprehensive reception quality as the secondary antenna.

[0042] It is understandable that the auxiliary antenna selected by the terminal needs to receive the downlink signal of the base station, so the base station should also know which antenna is the auxiliary antenna. In some examples of this embodiment, after the terminal selects the auxiliary antenna, it can notify the base station and let the base station determine the auxiliary antenna based on the notification. In some other examples, the principle of selecting the auxiliary antenna by the terminal is agreed upon with the base station, so the base station can also determine the auxiliary antenna according to the same principle as the terminal. In this case, although the terminal and the base station do not directly exchange information about the auxiliary antenna, the two will select the same auxiliary antenna based on the same selection principle. However, it is understandable that in the scheme where the terminal and the base station pre-agree on the principle of selecting the auxiliary antenna, the reception quality feedback information sent by the terminal to the base station must carry the reception parameters of each antenna of the MIMO antenna to provide a selection basis for the base station.

[0043] In other examples of this embodiment, the secondary antenna may be selected by the base station and notified to the terminal after completion. For example, in some examples of this embodiment, the mode switching instruction also carries a secondary antenna indication, which is used as indication information to indicate to the terminal the secondary antenna selected by the base station for the terminal from the MIMO antenna of the terminal. In some examples, the base station may randomly select an antenna from the MIMO antenna as the secondary antenna, and in some other examples, the base station may select the secondary antenna based on the sequence number of each antenna in the MIMO antenna. Of course, in other examples, the base station may also select the secondary antenna based on the reception status of each antenna in the MIMO antenna for the signal sent by the base station. For example, if the reception quality feedback information sent by the terminal to the base station carries the received signal strength of each antenna of the MIMO antenna, the base station may select the antenna with the largest received signal strength value as the secondary antenna.

[0044] It is understandable that in some other examples, the base station can send the auxiliary antenna indication and the mode switching instruction to the terminal separately. For example, the base station first sends the mode switching instruction to the terminal, and then sends the mode auxiliary antenna indication, or the base station sends the mode switching instruction and the auxiliary antenna indication to the terminal at the same time.

[0045] S110: The terminal performs diversity combining processing on the signals received by the primary antenna and the secondary antenna.

[0046] After the terminal receives the downlink signal sent by the base station using the primary antenna and the secondary antenna, it can perform diversity combining on the signals received by the primary antenna and the secondary antenna. In one example of this embodiment, the terminal can use the maximum ratio combining algorithm to perform diversity combining on the signals received by the primary antenna and the secondary antenna. In this processing scheme, the terminal multiplies the n different diversity signals by different coefficients wi (i = 1, 2, ..., n). The value of wi is related to the fading coefficients hi (i = 1, 2, ..., n) of the n branches.

[0047] Of course, those skilled in the art will understand that the way in which the terminal performs diversity combining on the received signal is not limited to the maximum ratio combining algorithm. For example, in some other examples, the terminal may also adopt an equal gain combining algorithm or a selective combining algorithm.

[0048] It can be understood that since the transmission paths of the main antenna and the auxiliary antenna are multipath orthogonal, the two are independent of each other and there is basically no coupling. Therefore, the terminal can obtain the best diversity gain by combining the reception results of the two using the maximum ratio, thereby improving the terminal's receiving sensitivity and enhancing the communication quality.

[0049] In some examples of this embodiment, in order to enable the terminal and the base station to continue to use the MIMO working mode for signal transmission after the communication environment in which the terminal is located improves, the terminal and the base station can perform a test every period of time. For example, the base station and the terminal use the MIMO working mode to interact with reference signals at some agreed moments, so that the base station can understand the communication quality of the terminal's current environment, and then switch back to the MIMO working mode after the reception quality of the terminal's MIMO antenna to the signal sent by the base station meets the requirements of the MIMO working mode.

[0050] In the terminal communication control method provided in this embodiment, the terminal sends reception quality feedback information to the base station, indicating the reception quality of the base station's signals by its MIMO antenna. This allows the base station to evaluate whether the terminal's current environment is suitable for continuing to use the MIMO operating mode. If the result is negative, the base station instructs the terminal to switch to diversity operating mode, allowing the terminal to use an antenna in the MIMO antenna as an auxiliary antenna to perform receive diversity on the base station's downlink signal together with the main antenna. This not only improves the utilization rate of the MIMO antenna that would otherwise be idle, but also improves the terminal's reception quality of the base station's downlink signal through the receive diversity of the main and auxiliary antennas, thereby enhancing the terminal's reception sensitivity and the user's communication experience.

[0051] Example 2:

[0052] In order to make the advantages and details of the above-mentioned terminal communication control method more clear to those skilled in the art, this embodiment will further illustrate the solution with reference to examples. Figure 2 The interaction flow chart shown:

[0053] S202: The terminal controls the MIMO antenna to interact with the base station in a MIMO working mode.

[0054] In this embodiment, when the terminal is in a strong signal scenario, the MIMO antenna is controlled to communicate in the MIMO working mode.

[0055] S204: The terminal measures the receiving parameters of each antenna in the MIMO antenna.

[0056] When the terminal communicates with the base station using the MIMO working mode, the terminal can measure the reception quality of the signal sent by each antenna in the MIMO antenna to the base station. In this embodiment, the receiving parameters measured by the terminal include received signal strength and SNR. Of course, those skilled in the art will understand that in some other examples of this embodiment, the measured receiving parameters may be only one of the received signal strength and SNR, or other receiving parameters, or a combination of received signal strength, SNR and other receiving parameters.

[0057] S206: The terminal controls each antenna in the MIMO antenna to send reception quality feedback information carrying reception parameters of the antenna to the base station via the SRS.

[0058] After measuring the reception parameters of each MIMO antenna, the terminal can transmit these parameters to the base station using an SRS. In this embodiment, for each MIMO antenna, the terminal can control that antenna to transmit an SRS signal carrying the antenna's reception parameters to the base station as reception quality feedback. Therefore, for a MIMO antenna system consisting of eight antennas, the terminal will control each of these eight antennas to transmit SRS signals to the base station.

[0059] S208: The base station compares the receiving parameter corresponding to each antenna in the terminal MIMO antenna with the receiving parameter threshold.

[0060] After receiving the SRS signals transmitted by each of the terminal's MIMO antennas, the base station extracts the corresponding reception parameters. The received parameters are then compared with the reception parameter threshold. In this embodiment, the base station sets both an SNR threshold and a received signal strength threshold. For example, for the SRS signal transmitted by antenna a in the MIMO antenna, the base station compares the extracted SNR value with the SNR threshold to determine the comparison result. Simultaneously, the base station also compares the received signal strength extracted from the SRS with the received signal strength threshold to obtain a comparison result.

[0061] S210: The base station determines that reception parameters of a preset number of antennas are lower than a reception parameter threshold.

[0062] In some examples of this embodiment, if the base station determines that the SNR values ​​of two antennas are lower than the SNR threshold and the received signal strength values ​​of three antennas are lower than the received signal strength threshold, the base station can determine that the MIMO antenna of the terminal is not suitable for continuing to communicate in the MIMO working mode, otherwise the communication quality on the terminal side will be very poor.

[0063] S212: The base station selects a secondary antenna according to the reception parameters of each antenna in the terminal MIMO antenna.

[0064] In this embodiment, the base station may select the secondary antenna based on only one of the SNR and the received signal strength, or may select the secondary antenna based on both the SNR and the received signal strength, so as to select an antenna with better overall performance as the secondary antenna.

[0065] In addition, in this embodiment, the base station only selects one from the MIMO antennas of the terminal as an auxiliary antenna. However, in some other examples of this embodiment, the base station may select at least two auxiliary antennas. In some examples, the base station may even select all antennas in the MIMO antennas as auxiliary antennas.

[0066] S214: The base station sends a mode switching instruction carrying a secondary antenna indication to the terminal.

[0067] After the base station selects the auxiliary antenna, it can send a mode switching instruction to the terminal, and the mode switching instruction carries an auxiliary antenna indication for indicating the auxiliary antenna. For example, in some examples of this embodiment, the base station can carry the serial number or identifier of the auxiliary antenna in the mode switching instruction, and other information that can uniquely distinguish an antenna from the MIMO antenna.

[0068] S216: The terminal exits the MIMO working mode and uses the auxiliary antenna and the main antenna to receive the downlink signal of the base station.

[0069] After receiving the mode switching instruction, the terminal extracts the auxiliary antenna indication from it, determines the auxiliary antenna selected by the base station based on the auxiliary antenna indication, and then controls the other antennas in the MIMO antenna except the auxiliary antenna to stop working, and controls the main antenna and the auxiliary antenna to receive downlink signals together.

[0070] S218: The terminal uses a maximum ratio combining algorithm to process the received signals of the primary antenna and the secondary antenna.

[0071] After the main antenna and auxiliary antenna receive the downlink signal sent by the base station, the terminal uses the maximum ratio combining algorithm to perform diversity processing on the two received signals to obtain a combined received signal, and then performs analysis and other processing on the combined received signal.

[0072] The terminal communication control method provided in this embodiment not only expands the application scenarios of MIMO antennas, improves the utilization rate of antenna resources, optimizes the terminal's reception quality of base station downlink signals, and enhances the terminal's reception sensitivity.

[0073] Embodiment 3: This embodiment provides a storage medium, comprising a volatile or non-volatile, removable or non-removable medium implemented in any method or technology for storing information (such as computer-readable instructions, data structures, computer program modules, or other data). The storage medium includes, but is not limited to, RAM (Random Access Memory), ROM (Read-Only Memory), EEPROM (Electrically Erasable Programmable Read Only Memory), flash memory or other memory technology, CD-ROM (Compact Disc Read-Only Memory), digital versatile disk (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer.

[0074] The storage medium may store one or more computer programs that can be read, compiled, and executed by one or more processors. In this embodiment, the storage medium may store at least one of a first terminal communication control program and a second terminal communication control program. The first terminal communication control program can be executed by one or more processors to implement the terminal-side process in any of the terminal communication control methods described in the aforementioned embodiments. The second terminal communication control program can be executed by one or more processors to implement the base station-side process in any of the terminal communication control methods described in the aforementioned embodiments.

[0075] This embodiment also provides a computer program product, including a computer readable device, on which the computer program as shown above is stored. In this embodiment, the computer readable device may include the computer readable storage medium as shown above. For example, the computer program product includes a communication device, such as Figure 3 As shown: the communication device 30 includes a processor 31, a memory 32 and a communication bus 33 for connecting the processor 31 and the memory 32, wherein the memory 32 can be the aforementioned storage medium storing at least one of the first terminal communication control program and the second terminal communication control program.

[0076] For example, in one example of this embodiment, the communication device 30 is a terminal, and its processor 31 can read the first terminal communication control program, compile and execute the terminal-side process of the terminal communication control method described in the above embodiment:

[0077] When the terminal's MIMO antenna is in MIMO mode, processor 31 sends reception quality feedback information to the base station. This information indicates the reception quality of the base station's signals. Subsequently, processor 31 receives a mode adjustment command from the base station when it determines that the reception quality does not meet MIMO mode requirements. Based on the mode adjustment command, processor 31 uses both the primary and secondary antennas (one of the MIMO antennas) to receive downlink signals from the base station. Processor 31 then performs diversity combining on the signals received from the primary and secondary antennas.

[0078] Optionally, the processor 31 sends reception quality feedback information to the base station via a sounding reference signal SRS.

[0079] In some examples of this embodiment, the processor 31 uses a maximum ratio combining algorithm to perform diversity combining processing on the reception signals of the primary antenna and the secondary antenna.

[0080] In some examples of this embodiment, before using the primary antenna and the secondary antenna to jointly receive a downlink signal sent by the base station according to the mode adjustment instruction, the processor 31 selects an antenna from the MIMO antenna as the secondary antenna of the terminal;

[0081] In other examples of this embodiment, the mode adjustment instruction received by the processor 31 also includes an auxiliary antenna indication. Before the processor 31 uses the main antenna and the auxiliary antenna to jointly receive the downlink signal sent by the base station according to the mode adjustment instruction, the processor 31 will also determine the auxiliary antenna selected by the base station for the terminal according to the auxiliary antenna indication.

[0082] In another example of this embodiment, the communication device 30 is a base station, and its processor 31 can read the second terminal communication control program, compile and execute the process on the base station side of the terminal communication control method introduced in the above embodiment:

[0083] Processor 31 receives reception quality feedback information sent by a terminal when its MIMO antenna is in MIMO operating mode. This reception quality feedback information indicates the reception quality of the MIMO antenna for signals transmitted by the base station. Processor 31 then determines whether the reception quality indicated by the reception quality feedback information meets the requirements of the MIMO operating mode. If it is determined that the reception quality does not meet the requirements of the MIMO operating mode, processor 31 sends a mode switching instruction to the terminal. This mode switching instruction instructs the terminal to use both the primary antenna and the secondary antenna to receive downlink signals transmitted by the base station to implement receive diversity, where the secondary antenna is an antenna in the MIMO antenna.

[0084] Optionally, the reception quality feedback information includes reception parameters of each antenna in the MIMO antenna for a signal sent by the base station, and the reception parameters include at least one of received signal strength, signal-to-noise ratio (SNR), and signal-to-interference ratio (SIR).

[0085] In some examples of this embodiment, when the processor 31 determines that the reception quality represented by the reception quality feedback information does not meet the requirements of the MIMO working mode, it can determine based on the reception quality feedback information whether there is a preset proportion or a preset number of antennas in the MIMO antennas whose corresponding reception parameters are lower than the reception parameter threshold; then, when there is a preset proportion or a preset number of antennas in the MIMO antennas whose corresponding reception parameters are lower than the reception parameter threshold, it is determined that the reception quality represented by the reception quality feedback information does not meet the requirements of the MIMO working mode.

[0086] In some examples of this embodiment, before sending the mode switching instruction to the terminal, the processor 31 may further select an antenna from the MIMO antennas as a secondary antenna of the terminal, and then generate a mode switching instruction carrying a secondary antenna indication.

[0087] Optionally, the processor 31 may determine the SNR of each antenna in the MIMO antenna, and then select an antenna with the highest SNR as the auxiliary antenna of the terminal.

[0088] This embodiment also provides a communication system 4, which includes a base station 41 and multiple terminals 42. Figure 4 As shown, the base station 41 may be a communication device for the aforementioned processor 31 to execute the second terminal communication control program, and the terminal 42 may be a communication device for the aforementioned processor 31 to execute the first terminal communication control program.

[0089] In the communication system, communication device, and storage medium provided in this embodiment, during communication between a terminal and a base station using the MIMO operating mode, the terminal can send reception quality feedback information to the base station, using the reception quality feedback information to provide the base station with feedback on its reception status of the signal sent by the base station. Thus, when the base station determines, based on the terminal's reception quality feedback information, that the current signal quality is not suitable for continued MIMO communication with the terminal, the base station can send a mode adjustment instruction to the terminal, causing the terminal to exit the MIMO operating mode according to the mode adjustment instruction and use an antenna in the MIMO antenna as a secondary antenna to receive downlink signals together with the primary antenna, thereby achieving receive diversity. This increases the gain of the receive antenna, enhances signal reception quality, improves the terminal's receive sensitivity, and enhances the communication experience of users on the terminal side. Furthermore, because the MIMO antenna continues to participate in communication after the terminal exits the MIMO operating mode, it will not be idle, thereby improving the utilization of antenna resources.

[0090] It can be seen that those skilled in the art should understand that all or some of the steps, systems, and functional modules / units in the methods disclosed above can be implemented as software (which can be implemented using computer program code executable by a computing device), firmware, hardware, and appropriate combinations thereof. In hardware implementations, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component can have multiple functions, or a function or step can be performed by several physical components in cooperation. Some or all physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit.

[0091] In addition, it is well known to those skilled in the art that communication media generally contain computer-readable instructions, data structures, computer program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media. Therefore, the present invention is not limited to any specific hardware and software combination.

[0092] The above content is a further detailed description of the embodiments of the present invention in conjunction with specific implementation methods, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For those skilled in the art of the present invention, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should be considered to fall within the scope of protection of the present invention.

Claims

1. A terminal communication control method, comprising: When the multiple-input multiple-output (MIMO) antenna of the terminal is in MIMO operating mode, reception quality feedback information is sent to the base station via a sounding reference signal (SRS), where the reception quality feedback information is used to indicate the reception quality of the signal sent by the base station by the MIMO antenna; receiving a mode adjustment instruction sent by the base station, where the mode adjustment instruction is used to indicate that the reception quality does not meet the requirements of the MIMO working mode; Using a main antenna and an auxiliary antenna to jointly receive a downlink signal sent by the base station according to the mode adjustment instruction, the auxiliary antenna being an antenna in the MIMO antenna; Diversity combining is performed on the received signals of the main antenna and the auxiliary antenna.

2. The terminal communication control method according to claim 1, wherein: The performing diversity combining processing on the received signals of the main antenna and the auxiliary antenna includes: A maximum ratio combining algorithm is used to perform diversity combining processing on the received signals of the main antenna and the auxiliary antenna.

3. The terminal communication control method according to claim 1 or 2, wherein: Before the method of using the main antenna and the auxiliary antenna to jointly receive the downlink signal sent by the base station according to the mode adjustment instruction, the method further includes: selecting an antenna from the MIMO antenna as the auxiliary antenna of the terminal; or, The mode adjustment instruction also includes a secondary antenna indication. Before using the main antenna and the secondary antenna to jointly receive the downlink signal sent by the base station according to the mode adjustment instruction, it also includes: determining the secondary antenna selected by the base station for the terminal from the MIMO antennas of the terminal according to the secondary antenna indication.

4. A terminal communication control method, comprising: Reception quality feedback information sent by a receiving terminal via a sounding reference signal (SRS) when its MIMO antenna is in MIMO operating mode, the reception quality feedback information being used to characterize the reception quality of the MIMO antenna for a signal sent by a base station; Determining that the reception quality represented by the reception quality feedback information does not meet requirements of the MIMO operating mode; A mode switching instruction is sent to the terminal, where the mode switching instruction is used to instruct the terminal to use a main antenna and a secondary antenna to jointly receive a downlink signal sent by the base station to implement receive diversity, where the secondary antenna is an antenna in the MIMO antenna.

5. The terminal communication control method according to claim 4, wherein: The reception quality feedback information includes a reception parameter of each antenna in the MIMO antenna for a signal sent by the base station, the reception parameter including at least one of a received signal strength, a signal-to-noise ratio (SNR), and a signal-to-interference ratio (SIR). Determining that the reception quality represented by the reception quality feedback information does not meet requirements of the MIMO working mode includes: Determining, based on the reception quality feedback information, whether a preset proportion or a preset number of antennas among the MIMO antennas have reception parameters corresponding to antennas that are lower than a reception parameter threshold; When reception parameters corresponding to antennas with a preset proportion or a preset number among the MIMO antennas are lower than a reception parameter threshold, it is determined that the reception quality represented by the reception quality feedback information does not meet the requirements of the MIMO working mode.

6. The terminal communication control method according to claim 4 or 5, characterized in that: Before sending the mode switching instruction to the terminal, the method further includes: Selecting an antenna from the MIMO antennas as a secondary antenna of the terminal; Generate a mode switching instruction carrying a secondary antenna indication.

7. The terminal communication control method according to claim 6, wherein: The selecting an antenna from the MIMO antennas as a secondary antenna of the terminal includes: Determining the SNR of each antenna in the MIMO antenna; An antenna with the highest SNR is selected as the auxiliary antenna of the terminal.

8. A communication device comprising a processor, a memory, and a communication bus; The communication bus is used to realize the connection and communication between the processor and the memory; The processor is used to execute a first terminal communication control program stored in the memory to implement the steps of the terminal communication control method as described in any one of claims 1 to 3; or, the processor is used to execute a second terminal communication control program stored in the memory to implement the steps of the terminal communication control method as described in any one of claims 4 to 7.

9. A storage medium, characterized in that: The storage medium stores at least one of a first terminal communication control program and a second terminal communication control program. The first terminal communication control program can be executed by one or more processors to implement the steps of the terminal communication control method as described in any one of claims 1 to 3. The second terminal communication control program can be executed by one or more processors to implement the steps of the terminal communication control method as described in any one of claims 4 to 7.

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