Terminal equipment and antenna control method

Abstract

The invention discloses terminal equipment and an antenna control method. The terminal equipment comprises a processor and a plurality of antennas, the processor is used for determining a first target number based on a target parameter corresponding to a to-be-detected first downlink channel or signal, and the target parameter represents at least one of the following: a channel condition, a type of the first downlink channel or signal and a load size of the first downlink channel or signal; the processor is also used for controlling each antenna in the first target number of antennas in the plurality of antennas as a receiving antenna; the first target number of receiving antennas are used for detecting the first downlink channel or signal. According to the scheme of the invention, energy saving of the terminal equipment is realized.

Description

Technical Field

[0001] The present application relates to the field of mobile communication technology, and is related to but not limited to terminal equipment and antenna control methods. Background Art

[0002] When a terminal device performs downlink reception, the more radio frequency (RF) chains, i.e., receiving antennas, are used, the more power will be consumed. In the power model, the power consumption of 2 receiving antennas is only 0.7 times that of 4 receiving antennas. If the UE uses a fixed number of receiving antennas (always 2 receiving antennas) to receive downlink signals, the UE's power consumption is relatively large. Summary of the invention

[0003] The present application provides a terminal device and an antenna control method. The solution of the present application achieves energy saving of the terminal device.

[0004] The technical solution of this application is implemented as follows:

[0005] The present application provides a terminal device, the terminal device comprising: a processor and multiple antennas;

[0006] A processor, configured to determine a first target quantity based on a target parameter corresponding to a first downlink channel or signal to be detected, wherein the target parameter represents at least one of: a channel condition, a type of the first downlink channel or signal, and a load size of the first downlink channel or signal;

[0007] The processor is further configured to control each of the first target number of antennas among the plurality of antennas to be a receiving antenna;

[0008] The first target number of receiving antennas is used to detect the first downlink channel or signal.

[0009] In some embodiments, the first downlink channel or signal includes at least one of the following:

[0010] a channel or signal related to the reception of a paging message received by the terminal device in an idle state;

[0011] The terminal device receives a message related to the reception of data transmission in the connected state.

[0012] In some embodiments, the channel or signal related to the reception of the paging message received by the terminal device in the idle state includes at least one of the following:

[0013] A first physical downlink shared channel PDSCH, where the first PDSCH is used to carry the paging message;

[0014] A first physical downlink control channel PDCCH, where the first PDCCH is used to schedule the first PDSCH;

[0015] A first wake-up signal WUS, where the first WUS is used to wake up the terminal device to monitor the first PDCCH;

[0016] Synchronization signal.

[0017] In some embodiments, the channel or signal related to the reception of data transmission received by the terminal device in the connected state includes at least one of the following:

[0018] A first PDSCH, where the first PDSCH is used to carry the data transmission;

[0019] A first PDCCH, where the first PDCCH is used to schedule the first PDSCH;

[0020] A first WUS, wherein the first WUS is used to wake up the terminal device to monitor the first PDCCH.

[0021] In some embodiments, the processor is further configured to:

[0022] Based on the correspondence between the type of downlink channel or signal and the target quantity, the first target quantity corresponding to the first parameter included in the target parameter is determined, where the first parameter represents the type of the first downlink channel or signal.

[0023] In some embodiments, the processor is further configured to:

[0024] Comparing a value of a second parameter included in the target parameter with a specified threshold value corresponding to the second parameter, the second parameter representing a channel condition or a load size of the first downlink channel or signal;

[0025] The first target quantity is determined from a plurality of candidate quantities based on the comparison result.

[0026] In some embodiments, the terminal device is in an idle state.

[0027] The processor is further used to determine the first target quantity based on a comparison result of a first ratio and a specified ratio when the first downlink channel or signal includes a first wake-up signal WUS, wherein the first ratio is a ratio of a first downlink control information DCI size and a second DCI size included in the second parameter, the first DCI size is the DCI size of the first WUS, and the second DCI size is the DCI size of the first PDCCH.

[0028] In some embodiments, the processor is further configured to maintain the first target number of receiving antennas after the first target number of receiving antennas completes detection of the synchronization signal in the first downlink channel or signal;

[0029] The first target number of receiving antennas is also used to detect a second downlink channel or signal after completing the detection of the synchronization signal, and the second downlink channel or signal includes at least one of the following: a first WUS, a first PDCCH and a first PDSCH.

[0030] In some embodiments, the processor is also used to maintain the first target number of receiving antennas when the terminal device in an idle state indicated by the second WUS wakes up to monitor a second PDCCH, and the terminal device successfully detects a paging message, the second PDCCH is used to schedule a second PDSCH, the second PDSCH is used to carry a paging message, and the detection of the second PDSCH is located before the detection of the first downlink channel or signal.

[0031] In some embodiments, the processor is further configured to determine a third target number based on the second target number when the second WUS indicates that the terminal device in the idle state wakes up to monitor the second PDCCH and the terminal device fails to detect the paging message, the third target number being the number of receiving antennas used for the second PDCCH detection, and the third target number being greater than the second target number;

[0032] The processor is further configured to control each antenna of the third target number of antennas among the multiple antennas to be a receiving antenna after the first target number of receiving antennas completes the detection of the first WUS;

[0033] The third target number of receiving antennas is used to detect the first PDCCH and the first PDSCH included in the first downlink channel or signal.

[0034] In some embodiments, the processor is further configured to, after completing the detection of the first PDSCH, roll back the number of receiving antennas to the first target number.

[0035] In some embodiments, the processor is further configured to, after completing the detection of the first WUS included in the first downlink channel or signal, increase the first target number by a first adjustment value to obtain a fourth target number;

[0036] The processor is further configured to control each of the fourth target number of antennas among the plurality of antennas to be a receiving antenna;

[0037] The fourth target number of receiving antennas is used to detect a third downlink channel or signal, and the third downlink channel or signal includes at least one of the following: a first PDCCH, a first PDSCH, the first PDCCH is used to schedule the first PDSCH, and the first PDSCH is used to carry paging messages or data transmission.

[0038] In some embodiments, the terminal device is in a connected state.

[0039] The processor is further configured to: when a first PDCCH detected during an activation period of discontinuous reception (DRX) schedules a first PDSCH, add a second adjustment value to the fourth target number to obtain a fifth target number, and the first PDCCH is detected by receiving antennas of the fourth target number;

[0040] The processor is further configured to control each of the fifth target number of antennas among the plurality of antennas to be a receiving antenna;

[0041] The fifth target number of receiving antennas is used to detect the first PDSCH.

[0042] In some embodiments, the terminal device is in a connected state.

[0043] The processor is further configured to roll back the number of receiving antennas to the first target number when the DRX activation period ends.

[0044] The present application provides an antenna control method, which is applied to a terminal device, wherein the terminal device includes multiple antennas, and the method includes:

[0045] Determining a first target quantity based on a target parameter corresponding to a first downlink channel or signal to be detected, wherein the target parameter represents at least one of the following: a channel condition, a type of the first downlink channel or signal, and a load size of the first downlink channel or signal;

[0046] Controlling each of the first target number of antennas among the plurality of antennas to be a receiving antenna;

[0047] The first downlink channel or signal is detected based on the first target number of receiving antennas.

[0048] The present application also provides an electronic device, including: a memory, a processor and multiple antennas, the memory stores a computer program that can be run on the processor, and the processor implements the above-mentioned device control method when executing the program.

[0049] The present application also provides a storage medium on which a computer program is stored. When the computer program is executed by a processor, the above-mentioned device control method is implemented.

[0050] The terminal device and antenna control method provided in the present application include: the processor is used to determine a first target quantity based on a target parameter corresponding to a first downlink channel or signal to be detected, wherein the target parameter represents at least one of the following: a channel condition, a type of the first downlink channel or signal, and a load size of the first downlink channel or signal;

[0051] The processor is further configured to control each of the first target number of antennas among the plurality of antennas to be a receiving antenna;

[0052] The first target number of receiving antennas is used to detect the first downlink channel or signal.

[0053] It can be seen that the terminal device determines the number of receiving antennas used for the first downlink channel or signal based on the target parameters corresponding to the first downlink channel or signal to be detected, wherein the target parameters represent at least one of the following: channel conditions, the type of the first downlink channel or signal, and the load size of the first downlink channel or signal. Thus, based on the type of the downlink channel or signal to be detected, the load size and / or channel conditions, the number of receiving antennas is dynamically determined, and there is no need to use a fixed number of receiving antennas for the detection of different channels or signals, thereby avoiding energy waste of the terminal device when the same receiving antenna is used for different signal or channel types, channel conditions and / or load sizes, thereby achieving energy saving of the terminal device and improving the energy saving effect of the terminal device. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 An optional structural diagram of a terminal device provided in an embodiment of the present application;

[0055] Figure 2 A schematic diagram of an optional flow chart of an antenna control method provided in an embodiment of the present application;

[0056] Figure 3 A schematic diagram of an optional flow chart of an antenna control method provided in an embodiment of the present application;

[0057] Figure 4 A schematic diagram of an optional flow chart of an antenna control method provided in an embodiment of the present application;

[0058] Figure 5 A schematic diagram of an optional flow chart of an antenna control method provided in an embodiment of the present application;

[0059] Figure 6 A schematic diagram of an optional flow chart of an antenna control method provided in an embodiment of the present application;

[0060] Figure 7A schematic diagram of an optional flow chart of an antenna control method provided in an embodiment of the present application;

[0061] Figure 8 A schematic diagram of an optional flow chart of an antenna control method provided in an embodiment of the present application;

[0062] Fig. 9 A schematic diagram of an optional flow chart of an antenna control method provided in an embodiment of the present application;

[0063] Fig.10 A schematic diagram of an optional flow chart of an antenna control method provided in an embodiment of the present application;

[0064] Fig.11 A schematic diagram of an optional flow chart of an antenna control method provided in an embodiment of the present application;

[0065] Fig.12 A schematic diagram of an optional detection process of a channel or signal provided in an embodiment of the present application;

[0066] Fig.13 A schematic diagram of an optional detection process of a channel or signal provided in an embodiment of the present application;

[0067] Fig.14 An optional schematic diagram of BWP switching provided in an embodiment of the present application;

[0068] Fig.15 An optional schematic diagram of power consumption provided in an embodiment of the present application;

[0069] Fig.16 A schematic diagram of an optional flow chart of an antenna control method provided in an embodiment of the present application;

[0070] Fig.17 A schematic diagram of an optional flow chart of an antenna control method provided in an embodiment of the present application;

[0071] Fig.18 A schematic diagram of an optional flow chart of an antenna control method provided in an embodiment of the present application;

[0072] Fig.19 A schematic diagram of an optional flow chart of an antenna control method provided in an embodiment of the present application;

[0073] Fig. 20 An optional flow chart of the antenna control method provided in the embodiment of the present application

[0074] Fig.21 An optional structural schematic diagram of the antenna control device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0075] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the specific technical solution of the application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but are not used to limit the scope of the present application.

[0076] In the following description, reference is made to “some embodiments”, which describe a subset of all possible embodiments, but it will be understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0077] In the following description, the terms "first\second\third" are used only as examples to distinguish different objects, and do not represent a specific order for the objects, nor do they have a limitation on the order of precedence. It is understandable that "first\second\third" can be interchanged with a specific order or order of precedence where permitted, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0078] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein are only for the purpose of describing the embodiments of this application and are not intended to limit this application.

[0079] The embodiment of the present application can provide an antenna control method. In practical applications, the antenna control method can be implemented by an antenna control device, and each functional entity in the antenna control device can be collaboratively implemented by hardware resources of the terminal device, such as computing resources such as a processor, and communication resources (such as for supporting various communication methods such as optical cables and cellular).

[0080] In a first aspect, an embodiment of the present application provides an antenna control method. Figure 1 The method is applied to an antenna control device; wherein the antenna control device can be deployed in a terminal device.

[0081] Figure 1 The figure shows a schematic diagram of an optional terminal device. Figure 1 As shown, the terminal device 100 includes a processor 101 and multiple antennas 102.

[0082] The processor 101 is configured to determine a first target quantity based on a target parameter corresponding to a first downlink channel or signal to be detected, where the target parameter represents at least one of the following: a channel condition, a type of the first downlink channel or signal, and a load size of the first downlink channel or signal;

[0083] The processor 101 is further configured to control each of the first target number of antennas 102 in the plurality of antennas 102 to be a receiving antenna 102;

[0084] The first target number of receiving antennas 102 is used to detect the first downlink channel or signal.

[0085] In a second aspect, the present application provides an antenna control method, which can be applied Figure 1 The terminal equipment shown, refer to Figure 2 The method may include Figure 1 S201 to S203 shown.

[0086] S201. Determine a first target quantity based on a target parameter corresponding to a first downlink channel or signal to be detected, where the target parameter represents at least one of the following: a channel condition, a type of the first downlink channel or signal, and a load size of the first downlink channel or signal.

[0087] Before detecting the first downlink channel or signal, the terminal device determines the target parameter corresponding to the first downlink channel or signal, and determines the first target quantity based on the target parameter, the first target quantity being the number of receiving antennas used to receive the first downlink channel or channel, which can be understood as the number of receiving antennas used to detect the first downlink channel or signal. In an embodiment of the present application, the first downlink channel or signal is a downlink channel or signal to be detected.

[0088] In the embodiment of the present application, the terminal device may be in an idle state or a connected state. The terminal device may detect the first downlink channel or signal in the idle state or the connected state. The first downlink channel or signal detected by the terminal device may be different in different states.

[0089] For the first downlink channels or signals to be detected, target parameters corresponding to different first downlink channels or signals may be the same or different.

[0090] In an embodiment of the present application, the target parameters may include at least one of the following parameters: parameter 1, the type of downlink channel or signal; parameter 2, the measurement result characterizing the channel condition; parameter 3, the load size of the first downlink channel or signal.

[0091] In the case where the target parameter includes parameter 1, the type of the first downlink channel or signal is used as a reference for determining the first target quantity. In the embodiment of the present application, a corresponding relationship between the type of the downlink channel or signal and the target quantity can be set to determine the target quantity corresponding to different downlink channels or signals. Among them, a type of downlink channel or signal corresponds to one or more target quantities.

[0092] In the case where a type of a downlink channel or signal corresponds to multiple target quantities, a first target quantity may be selected from the multiple target quantities based on other parameters in the target parameters.

[0093] In the case where the target parameters include parameter 2, the reference basis for determining the first target number includes the channel condition of the first downlink channel or signal, which can be understood as taking the coverage of the terminal device as the basis for the number of receiving antennas, wherein, when the coverage of the terminal device is good (good coverage), that is, the channel condition is good, the first downlink channel or signal can be detected based on fewer receiving antennas. In the case of poor coverage (bad coverage), that is, the channel condition is poor, the first downlink channel or signal can be detected based on more receiving antennas. In other words, the better the signal condition, the fewer receiving antennas are used to detect the first downlink channel or signal, and the worse the signal condition, the more receiving antennas are used to detect the first downlink channel or signal.

[0094] Parameter 2 may include a measurement result of a downlink channel between the terminal device and the network device. In the embodiment of the present application, parameter 2 includes reference signal received power (RSRP), reference signal received quality (RSRQ), etc.

[0095] In the embodiment of the present application, when the value of parameter 2 is greater than the set threshold, it can be considered that the coverage is good or the channel condition is good, and when the value of parameter 2 is less than or equal to the set threshold, it can be considered that the coverage is poor or the channel condition is poor. Wherein, different parameter 2 may have different thresholds for comparison with parameter 2.

[0096] In the case where the target parameters include parameter 3, the reference basis for determining the first target number includes the load size of the first downlink channel or signal. When the terminal device detects the first downlink channel or signal with a large load, it can detect the first downlink channel or signal based on a larger number of receiving antennas. When the terminal device detects the first downlink channel or signal with a small load, it can detect the first downlink channel or signal based on a smaller number of receiving antennas. In other words, the greater the load, the more receiving antennas are used to detect the first downlink channel or signal, and the smaller the load, the fewer receiving antennas are used to detect the first downlink channel or signal.

[0097] Parameter 3 may include downlink control information (DCI) size or transport block size (TBS), wherein for a control channel for transmitting control information, parameter 3 may be the DCI size, and for a shared channel for transmitting data, parameter 3 may be the TBS.

[0098] In the embodiment of the present application, when the value of parameter 3 is greater than the set threshold, the load is considered to be large, and when the value of parameter 3 is less than or equal to the set threshold, the load is considered to be small. If parameter 3 is different, the threshold for comparison with parameter 3 may be different.

[0099] In the embodiment of the present application, the first target number is one of the available antenna numbers. In one example, the available antenna numbers include: 1, 2, and 4. In one example, the available antenna numbers include: 1, 2, 4, and 6.

[0100] S202: Control each of the first target number of antennas among the multiple antennas to be a receiving antenna.

[0101] After the terminal device determines the first target number, it controls the radio frequency links of the first target number of antennas to be receiving links, thereby controlling the first target number of antennas to be receiving antennas.

[0102] S203: Detect the first downlink channel or signal based on the first target number of receiving antennas.

[0103] The terminal device detects or monitors the first channel or signal based on the first target number of receiving antennas.

[0104] In the embodiment of the present application, when the terminal device is detecting or monitoring the first channel or signal, it may or may not receive the first downlink channel or signal.

[0105] In an embodiment of the present application, when a terminal device detects a first downlink channel or signal, the detection of the first downlink channel or signal may be performed based on the time-frequency resources of the first downlink channel or signal, wherein the time domain resources in the time-frequency resources are used to determine the time when the terminal device detects the first downlink channel or signal, and the frequency domain resources in the time-frequency resources are used to determine the frequency used by the terminal device to detect the first downlink channel or signal.

[0106] The terminal device and antenna control method provided in the embodiments of the present application, the terminal device determines the number of receiving antennas used for the first downlink channel or signal based on the target parameters corresponding to the first downlink channel or signal to be detected, wherein the target parameters represent at least one of the following: channel conditions, the type of the first downlink channel or signal and the load size of the first downlink channel or signal, thereby dynamically determining the number of receiving antennas based on the type of the downlink channel or signal to be detected, the load size and / or the channel conditions, and there is no need to use a fixed number of receiving antennas for the detection of different channels or signals, thereby avoiding energy waste of the terminal device when the same receiving antenna is used for different signal or channel types, channel conditions and / or load sizes, thereby achieving energy saving of the terminal device and improving the energy saving effect of the terminal device.

[0107] In some embodiments, the first downlink channel or signal includes at least one of the following:

[0108] The first type of channel or signal: a channel or signal related to the reception of a paging message received by the terminal device in an idle state;

[0109] The second type of channel or signal: a message related to the reception of data transmission received by the terminal device in the connected state.

[0110] The first type of channel or signal is a downlink channel received by the terminal device in an idle state, and the channel is related to the reception of a paging message, such as: a channel received before a paging message, a channel used to schedule a paging message, a channel used to carry a paging message, etc.

[0111] In some embodiments, the channel or signal related to the reception of the paging message received by the terminal device in the idle state includes at least one of the following:

[0112] a first physical downlink shared channel (PDSCH), wherein the first PDSCH is used to carry the paging message;

[0113] A first physical downlink control channel (PDCCH), wherein the first PDCCH is used to schedule the first PDSCH;

[0114] A first wake-up signal (Wake Up Signal, WUS), where the first WUS is used to wake up the terminal device to monitor the first PDCCH;

[0115] Synchronization signal.

[0116] The terminal device in the idle state may periodically detect the synchronization signal and synchronize with the network device based on the detected synchronization signal. The synchronization signal may be a synchronization signal block (SSB) signal. The terminal device may determine the synchronization information based on one or more detected synchronization signals. The terminal device may detect the synchronization signal in the wake-up state.

[0117] A terminal device in an idle state can detect the first WUS in a sleep state. The first WUS can indicate whether to wake up the terminal device. Among them, the terminal device can enter a sleep state (sleep) after detecting the synchronization signal. In the sleep state, the terminal device receives the first WUS based on a low power receiver (LP-receiver). The PDCCH used to carry the first WUS can also carry a paging early indication (PEI).

[0118] When the first WUS indicates that the terminal device is awakened, the terminal device performs subsequent signal reception and processing based on a main receiver (Main-receiver), and monitors or detects the first PDCCH after awakening.

[0119] The terminal device in the idle state can detect the first PDCCH for scheduling paging messages, wherein the first PDCCH can be understood as a paging PDCCH for scheduling reception of paging messages or a first PDSCH, and the first PDSCH is used to carry paging messages.

[0120] In the embodiment of the present application, the terminal device can detect the paging PDCCH and the paging message at the paging occasion (PO) after waking up. PO is periodic, so the terminal device detects the paging PDCCH and the paging message based on PO, which can be understood as discontinuous reception (DRX) in the idle state.

[0121] After receiving the paging PDCCH, the terminal device in the idle state detects the first PDSCH carrying the paging message based on the scheduling of the paging PDCCH.

[0122] For one or more channels or signals of the first type of channels or signals, the terminal device determines a first target quantity corresponding to the corresponding channels or signals based on target parameters of each channel or signal.

[0123] In one example, the terminal device determines a first target quantity corresponding to the synchronization signal based on a target parameter corresponding to the synchronization signal.

[0124] In one example, the terminal device determines a first target number corresponding to the synchronization signal based on a target parameter corresponding to the synchronization signal, and determines a first target number corresponding to the first PDCCH based on a target parameter corresponding to the first PDCCH.

[0125] In one example, the terminal device determines a first target quantity corresponding to the first WUS based on a target parameter corresponding to the first WUS.

[0126] In one example, the terminal device determines a first target quantity corresponding to the first WUS based on a target parameter corresponding to the first WUS, and determines a first target quantity corresponding to the first PDSCH based on a target parameter corresponding to the first PDSCH.

[0127] In one example, the terminal device determines the first target quantity corresponding to the synchronization signal based on the target parameters corresponding to the synchronization signal, determines the first target quantity corresponding to the first WUS based on the target parameters corresponding to the first WUS, and determines the first target quantity corresponding to the first PDSCH based on the target parameters corresponding to the first PDSCH.

[0128] The second type of channel or signal is a downlink channel received by the terminal device in a connected state, and the channel is related to the reception of data transmission, such as: a channel received before data transmission, a channel used to schedule data transmission, a channel used to carry data transmission, etc.

[0129] In some embodiments, the channel or signal related to the reception of data transmission received by the terminal device in the connected state includes at least one of the following:

[0130] A first PDSCH, where the first PDSCH is used to carry the data transmission;

[0131] A first PDCCH, where the first PDCCH is used to schedule the first PDSCH;

[0132] A first WUS, wherein the first WUS is used to wake up the terminal device to monitor the first PDCCH.

[0133] The terminal device in the connected state detects the first WUS in the sleep state. The first WUS may indicate whether to wake up the terminal device. The terminal device enters the sleep state (slee p) based on the DRX configuration. In the sleep state, the terminal device receives the first WUS based on the low power receiver (LP-receiver).

[0134] When the first WUS indicates that the terminal device is awakened, the terminal device performs subsequent signal reception and processing based on the main receiver (Main-receiver), and after awakening, monitors or detects the first PDCCH and the first PDSCH during the activation period (onduration) of the DRX configuration, where the first PDCCH is used to schedule data transmission or reception of the first PDSCH, and the first PDSCH is used to carry data transmission.

[0135] The terminal device in the connected state detects the first PDCCH used to schedule data transmission, wherein the first PDCCH can be understood as being used to carry a control signal (control signal) for scheduling data transmission or reception of the first PDSCH, and the first PDSCH is used to carry data transmission.

[0136] In the embodiment of the present application, when the first PDCCH includes a downlink grant, it can be considered that the first PDCCH schedules the first PDSCH.

[0137] For one or more channels or signals of the second type of channels or signals, the terminal device determines a first target quantity corresponding to the corresponding channels or signals based on target parameters of each channel or signal.

[0138] In one example, the terminal device determines a first target quantity corresponding to the first WUS based on a target parameter corresponding to the first WUS.

[0139] In one example, the terminal device determines the first target quantity corresponding to the first WUS based on the target parameters corresponding to the first WUS, determines the first target quantity corresponding to the first PDCCH based on the target parameters corresponding to the first PDCCH, and determines the first target quantity corresponding to the first PDSCH based on the target parameters corresponding to the first PDSCH.

[0140] In some embodiments, the target parameter includes a first parameter, the first parameter characterizing the type of the first downlink channel or signal, such as Figure 3 As shown, S201 determines a first target quantity based on a target parameter corresponding to a first downlink channel or signal to be detected, including:

[0141] S2011. Determine the first target number corresponding to the first parameter based on a correspondence between a type of downlink channel or signal and a target number.

[0142] Accordingly, the processor 101 is further configured to:

[0143] Based on the correspondence between the type of downlink channel or signal and the target quantity, the first target quantity corresponding to the first parameter included in the target parameter is determined, where the first parameter represents the type of the first downlink channel or signal.

[0144] The terminal device may determine the first target parameter corresponding to the first downlink channel or signal to be detected based on the type of the first downlink channel or signal.

[0145] In one example, for the first WUS signal, the corresponding target quantity is 1, and the terminal device determines that the corresponding first target quantity is 1 based on the first downlink channel or signal to be detected is the first WUS signal, and detects the first WUS based on 1 receiving antenna. The first WUS can be detected by the terminal device in an idle state, or it can be detected by the terminal device in a connected state.

[0146] In one example, for the synchronization signal, the corresponding target quantity is 1, and the terminal device determines that the corresponding first target quantity is 1 based on that the first downlink channel or signal to be detected is a synchronization signal, and detects the synchronization signal based on 1 receiving antenna.

[0147] In one example, for the first PDCCH detected in the idle state, the corresponding target quantity is 2. The terminal device determines that the corresponding first target quantity is 2 based on that the first downlink channel or signal to be detected is the first PDCCH detected in the idle state, and detects the first PDCCH based on 2 receiving antennas.

[0148] In some embodiments, the target parameter includes a second parameter, the second parameter characterizing a channel condition or a load size of the first downlink channel or signal, such as Figure 4 As shown, S201 determines a first target quantity based on a target parameter corresponding to a first downlink channel or signal to be detected, including:

[0149] S2012. Compare the value of the second parameter with a specified threshold corresponding to the second parameter;

[0150] S2013. Select the first target quantity from multiple candidate quantities based on the comparison result.

[0151] Accordingly, the processor 101 is further configured to:

[0152] The value of the second parameter included in the target parameter is compared with a specified threshold value corresponding to the second parameter, wherein the second parameter represents the channel condition or the load size of the first downlink channel or signal; based on the comparison result, the first target quantity is determined from multiple candidate quantities.

[0153] The second parameter includes parameter 2 or parameter 3, and the included parameters are different for different downlink channels or signals.

[0154] In one example, the first downlink channel or signal is a synchronization signal detected by a terminal device in an idle state, and the second parameter may include a measurement result.

[0155] In one example, the first downlink channel or signal is a first WUS detected by a terminal device in an idle state, and the second parameter may include a first DCI size and a second DCI size, the first DCI size being the DCI size of the first WUS, and the second DCI size being the DCI size of the first PDCCH detected by the terminal device in an idle state.

[0156] In one example, the first downlink channel or signal is a first PDSCH detected by a terminal device in an idle state, and the second parameter may include a TBS of the first PDSCH.

[0157] In one example, the first downlink channel or signal is a first WUS detected by a terminal device in a connected state, and the second parameter may include a first DCI size, which is a DCI size of the first WUS.

[0158] In one example, the first downlink channel or signal is a first PDCCH detected by a terminal device in a connected state, and the second parameter may include a second DCI size, which is a DCI size of the first PDCCH.

[0159] In one example, the first downlink channel or signal is a first PDSCH detected by a terminal device in a connected state, and the second parameter may include a TBS of the first PDCCH.

[0160] After the terminal device determines the second parameter, it compares the value of the second parameter with the specified threshold value corresponding to the second parameter, and determines the first target number from the multiple candidate numbers based on the comparison result. Here, if the multiple candidate numbers correspond to different comparison results, the candidate number corresponding to the current comparison result is determined as the first target number.

[0161] In one possible implementation, the value of the second parameter is greater than a specified threshold, and the corresponding candidate number is a first number. The value of the second parameter is less than or equal to the specified threshold, and the corresponding candidate number is a second number. The values ​​of the first number and the second number are different.

[0162] In one possible implementation, the value of the second parameter is greater than or equal to a specified threshold, and the corresponding candidate number is a first number. The value of the second parameter is less than the specified threshold, and the corresponding candidate number is a second number. The values ​​of the first number and the second number are different.

[0163] In one example, the second parameter includes RSRP, and the RSRP value is compared with the threshold 1 corresponding to RSRP. If the RSRP value is greater than the threshold 1, the first target number is 1; if the RSRP value is less than or equal to the threshold 1, the first target number is 2.

[0164] In one example, the second parameter includes a DCI size, and the first DCI size is compared with a threshold 2 corresponding to the DCI size, and if the DCI size is less than the threshold 2, the first target number is 1, and if the DCI size is greater than or equal to the threshold 2, the first target number is 1. The DCI size may be the first DCI size or the second DCI size.

[0165] In one example, the second parameter includes TBS, and TBS is compared with a threshold value 4 corresponding to TBS. If TBS is less than the threshold value 4, the first target quantity is 2; if TBS is greater than or equal to the threshold value 4, the first target quantity is 4.

[0166] In some embodiments, when the first downlink channel or signal includes a first WUS detected by a terminal device in an idle state, and the second parameter includes a first DCI size and a second DCI size, S2013 determines the first target number from a plurality of candidate numbers based on the comparison result, including:

[0167] The first target quantity is determined based on a comparison result between a first ratio and a specified ratio, wherein the first ratio is the ratio of a first DCI size to a second DCI size, wherein the first DCI size is the DCI size of the first WUS, and the second DCI size is the DCI size of the first PDCCH.

[0168] When the terminal device is in an idle state and performs a first WUS detection, a first ratio of the first DCI size to the second DCI size can be compared with a specified ratio. If the first ratio is less than the specified ratio, the first target quantity is the first quantity; if the first ratio is greater than or equal to the specified ratio, the first target quantity is the second quantity, and the first quantity is less than the second quantity.

[0169] In one example, the specified ratio is 0.3, if the first ratio is less than 0.3, the first target number is 1, and if the first ratio is greater than or equal to 0.3, the first target number is 2.

[0170] In the embodiment of the present application, when the second parameter includes the first DCI size and the second DCI size, the number of receiving antennas used to detect the first PDCCH corresponding to the second DCI size may be a specified number. The terminal device derives the number of receiving antennas used to detect the first WUS based on the relationship between the DCI size of the first WUS detected between the first PDCCH and the second DCI size, thereby using as few receiving antennas as possible to detect the first WUS within the range of the number of first WUS that can be detected, and using as few receiving antennas as possible to improve energy saving while ensuring reception of the first WUS.

[0171] In some embodiments, the first downlink channel or signal is a synchronization signal, and the method further includes Figure 5 Steps shown:

[0172] S501. After the first target number of receiving antennas completes detection of the synchronization signal, maintaining the first target number of receiving antennas;

[0173] S502: After completing the detection of the synchronization signal, detect a second downlink channel or signal based on the first target number of receiving antennas, where the second downlink channel or signal includes at least one of the following: a first WUS, a first PDCCH, and a first PDSCH.

[0174] Correspondingly, the processor 101 is further configured to maintain the first target number of receiving antennas after the first target number of receiving antennas completes detection of the synchronization signal in the first downlink channel or signal;

[0175] The first target number of receiving antennas 102 are further used to detect a second downlink channel or signal after completing the detection of the synchronization signal, where the second downlink channel or signal includes at least one of the following: a first WUS, a first PDCCH and a first PDSCH.

[0176] The number of receiving antennas used for detecting at least one of the first WUS, the first PDCCH, and the first PDSCH may follow the number of receiving antennas used for detecting the synchronization signal.

[0177] In one example, the number of receiving antennas used for detecting the synchronization signal is determined based on the measurement result, and the number of receiving antennas used for detecting the first WUS, the first PDCCH, and the first PDSCH is the same as the number of receiving antennas used for detecting the synchronization signal. Here, it can be understood that the number of receiving antennas is determined based on the measurement result.

[0178] In one example, if Figure 6 As shown, the same number of receiving antennas L is used to detect SSB, the first WUS, the first PDCCH and the first PDSCH.

[0179] In a possible implementation manner, when the number of receiving antennas remains unchanged, the receiving antennas may remain unchanged.

[0180] In an embodiment of the present application, the number of receiving antennas used for detecting the first WUS, the first PDCCH and the first PDSCH is the same as the number of receiving antennas used for detecting the synchronization signal. It is only necessary to determine the number of receiving antennas for the synchronization signal, thereby reducing the complexity of the solution and simplifying the solution.

[0181] In some embodiments, S501 maintaining the first target number of receiving antennas includes:

[0182] When the second WUS indicates that the terminal device in idle state wakes up to monitor the second PDCCH, and the terminal device successfully detects the paging message, the first target number of receiving antennas is maintained, the second PDCCH is used to schedule the second PDSCH, the second PDSCH is used to carry the paging message, and the detection of the second PDSCH is located before the detection of the first downlink channel or signal.

[0183] Correspondingly, the processor 101 is also used to wake up the terminal device in the idle state indicated by the second WUS to monitor the second PDCCH, and when the terminal device successfully detects the paging message, maintain the first target number of receiving antennas, the second PDCCH is used to schedule the second PDSCH, the second PDSCH is used to carry the paging message, and the detection of the second PDSCH is located before the detection of the first downlink channel or signal.

[0184] The second WUS can be understood as the WUS detected before the first WUS, and the second PDCCH can be understood as the second WUS instructing the terminal device to wake up the monitored first PDCCH, wherein the terminal device monitors the second PDCCH at the previous PO, and when the second PDCCH schedules the second PDSCH, continues to monitor the second PDSCH at the previous PO.

[0185] The second WUS indicates that the terminal device wakes up and monitors the second PDCCH. If the terminal device successfully detects the paging message in the previous PO, it means that the number of receiving antennas used in the previous PO can successfully detect the paging message. At this time, continue to use the method of determining the number of receiving antennas in the previous PO, that is, use the same number of receiving antennas as used for detecting the synchronization signal to monitor the paging message.

[0186] In one example, when the paging message was detected in the previous PO, the paging message was detected based on the number of receiving antennas determined based on the measurement results, and the paging message detection in the previous PO was successful, then in this PO, the paging message is continued to be detected based on the number of receiving antennas determined based on the measurement results, that is, the second PDCCH and the second PDSCH are detected.

[0187] In the embodiment of the present application, if the terminal device detects the second PDCCH at PO and detects the second PDSCH scheduled by the second PDCCH, it is considered that the detection of the paging message is successful.

[0188] In an embodiment of the present application, the terminal device determines the method for determining the first target number of this PO based on the detection results of the previous PO paging message, and thereby determines the number of receiving antennas based on the previous detection performance, thereby saving power consumption while ensuring detection performance.

[0189] In some embodiments, the antenna control method provided in the embodiments of the present application further includes:

[0190] When the second WUS indicates that the terminal device in the idle state wakes up to monitor the second PDCCH, and the terminal device fails to detect the paging message, determining a third target number based on the second target number, the third target number being the number of receiving antennas used for the second PDCCH detection, and the third target number being greater than the second target number;

[0191] After the first target number of receiving antennas completes the detection of the first WUS, controlling each antenna of the third target number of antennas among the plurality of antennas to be a receiving antenna;

[0192] Based on the third target number of receiving antennas, the first PDCCH and the first PDSCH included in the first downlink channel or signal are detected.

[0193] Correspondingly, the processor 101 is further configured to, when the second WUS indicates that the terminal device in the idle state wakes up to monitor the second PDCCH, and the terminal device fails to detect the paging message, determine a third target number based on the second target number, the third target number being the number of receiving antennas used for the second PDCCH detection, and the third target number being greater than the second target number; the processor 101 is further configured to, after the first target number of receiving antennas completes the detection of the first WUS, control each of the antennas of the third target number of antennas among the multiple antennas to be a receiving antenna;

[0194] The third target number of receiving antennas 102 is used to detect the first PDCCH and the first PDSCH included in the first downlink channel or signal.

[0195] In the embodiment of the present application, for the first PDCCH and the first PDSCH detected by the terminal device in the idle state, the method for determining the number of receiving antennas is as follows: Figure 7 As shown, including:

[0196] S701, detecting whether the paging message of the previous PO is detected successfully;

[0197] If the detection is successful, execute S602; if the detection fails, execute S603;

[0198] S702, maintaining a first target number of receiving antennas for synchronization signal detection to detect paging messages,

[0199] S703: Determine a third target number based on the second target number, and detect paging messages based on receiving antennas of the third target number.

[0200] The second WUS indicates that the terminal device wakes up and monitors the second PDCCH. If the terminal device fails to successfully detect the paging message in the previous PO, it indicates that the number of receiving antennas used in the previous PO cannot successfully detect the paging message. At this time, more receiving antennas are used to monitor the paging message.

[0201] In one example, when the previous PO detected the paging message, the paging message was detected based on the number of receiving antennas determined based on the measurement results, and the paging message detection in the previous PO failed, then in this PO, the number of receiving antennas corresponding to the synchronization signal is no longer used to detect the paging message, but the third target number is determined based on the second target number used last time, and the third target number of receiving antennas is used to detect the paging message.

[0202] In one example, the third target quantity is N times the second target quantity, where N is greater than 1, such as 1.5 or 2.

[0203] In the embodiment of the present application, if the terminal device fails to detect the second PDCCH at PO, or detects the second PDCCH but fails to detect the second PDSCH scheduled by the second PDCCH, it is considered that the detection of the paging message has failed.

[0204] In an embodiment of the present application, when the terminal device fails to detect the paging message in the previous PO, it adjusts the number of receiving antennas and detects the paging message of this PO based on a larger number of receiving antennas, thereby determining the number of receiving antennas based on the previous detection performance, thereby saving power consumption and ensuring detection performance.

[0205] In some embodiments, the method further comprises:

[0206] After completing the detection of the first PDSCH, the number of receiving antennas is returned to the first target number.

[0207] Correspondingly, the processor 101 is further configured to, after completing the detection of the first PDSCH, roll back the number of receiving antennas to the first target number.

[0208] like Figure 8 As shown, the synchronization signal and the first WUS are detected based on the first target number of receiving antennas, the first PDCCH and the first PDSCH are detected based on the third target number of receiving antennas, and after completing the first PDSCH, the number of receiving antennas is rolled back to the first target number.

[0209] After detecting the first PDCCH and the first PDSCH based on the third target number, the number of receiving antennas is returned to the first target number, and the synchronization signal can continue to be detected based on the first target number of receiving antennas.

[0210] In some embodiments, the antenna control method provided by the embodiment of the present application also includes: Fig. 9 Steps shown:

[0211] S901. After completing detection of the first WUS included in the first downlink channel or signal, increase the first target number by a first adjustment value to obtain a fourth target number;

[0212] S902, controlling each antenna of the fourth target number of antennas among the plurality of antennas to be a receiving antenna;

[0213] S903. Detect a third downlink channel or signal based on the fourth target number of receiving antennas, where the third downlink channel or signal includes at least one of the following: a first PDCCH, a first PDSCH, where the first PDCCH is used to schedule the first PDSCH, and the first PDSCH is used to carry a paging message or data transmission.

[0214] Correspondingly, the processor 101 is further configured to, after completing the detection of the first WUS included in the first downlink channel or signal, increase the first target number by a first adjustment value to obtain a fourth target number;

[0215] The processor 101 is further configured to control each antenna of the fourth target number of antennas among the multiple antennas to be a receiving antenna;

[0216] The fourth target number of receiving antennas 102 is used to detect a third downlink channel or signal, and the third downlink channel or signal includes at least one of the following: a first PDCCH, a first PDSCH, the first PDCCH is used to schedule the first PDSCH, and the first PDSCH is used to carry a paging message or data transmission.

[0217] The number of receiving antennas used to detect the first PDCCH and / or the first PDSCH is a fourth target number, and the fourth target number is obtained by adding a first adjustment value to the first target number corresponding to the first WUS. The first adjustment value may be 1, 2, or the like.

[0218] When detecting the first PDCCH and / or the first PDSCH, the terminal device turns on additional antennas based on the first target number of receiving antennas.

[0219] In one example, a terminal device in an idle state uses one receiving antenna to detect the first WUS, and when performing paging detection, turns on an additional antenna, thereby using two receiving antennas to perform paging message detection, namely, detection of the first PDCCH and the first PDSCH.

[0220] In one example, a terminal device in a connected state uses one receiving antenna to detect a first WUS, and when performing a first PDCCH detection, opens an additional antenna, thereby using two receiving antennas to detect the first PDCCH.

[0221] In the embodiment of the present application, the first PDCCH and the first PDSCH may be detected using the same number of receiving antennas or different numbers of receiving antennas.

[0222] In some embodiments, the terminal device is in a connected state, and the method further includes: Fig.10 Steps shown:

[0223] S1001. A first PDCCH detected during an activation period of DRX schedules a first PDSCH, a second adjustment value is added to the fourth target number to obtain a fifth target number, and the first PDCCH is detected by receiving antennas of the fourth target number;

[0224] S1002, controlling each antenna of the fifth target number of antennas among the multiple antennas to be a receiving antenna;

[0225] S1003. Detect the first PDSCH based on the fifth target number of receiving antennas.

[0226] Correspondingly, the processor 101 is also used to detect that the first PDCCH scheduled during the activation period of DRX has a first PDSCH, add a second adjustment value to the fourth target number to obtain a fifth target number, and the first PDCCH is detected through the fourth target number of receiving antennas; the processor 101 is also used to control each of the fifth target number of antennas among the multiple antennas as a receiving antenna; the fifth target number of receiving antennas 102 are used to detect the first PDSCH.

[0227] The terminal device is in a connected state, and the number of receiving antennas used to detect the first PDSCH is a fifth target number, which is obtained by adding a second adjustment value to the fourth target number corresponding to the first WUS. The second adjustment value can be 1, 2, etc.

[0228] When detecting the first PDSCH, the terminal device turns on additional antennas based on the fourth target number of receiving antennas.

[0229] In one example, a terminal device in a connected state uses one receiving antenna to detect a first WUS, and when performing a first PDCCH detection, turns on an additional one antenna, thereby using two receiving antennas to detect the first PDCCH, and when performing a first PDSCH detection, turns on two additional antennas, thereby using four receiving antennas to detect the first PDSCH.

[0230] In the embodiment of the present application, the size of the data transmitted by the first PDSCH is larger than the DCI size of the first PDCCH, so that a larger number of receiving antennas are used to detect the first PDSCH, thereby ensuring the reliability of data transmission.

[0231] In some embodiments, the antenna control method provided in the embodiments of the present application further includes:

[0232] When the DRX activation period ends, the number of receiving antennas is rolled back to the first target number.

[0233] Correspondingly, the processor 101 is further configured to roll back the number of receiving antennas to the first target number when the DRX activation period ends.

[0234] like Fig.11 As shown, the terminal device is in a connected state. During the dormant period of DRX, the first WUS is detected based on the first target number of receiving antennas. During the active period of DRX, the first PDCCH is detected based on the fourth target number of receiving antennas, and the first PDSCH is detected based on the fifth target number of receiving antennas. After the active period of DRX ends, the number of receiving antennas is rolled back to the first target number.

[0235] In the embodiment of the present application, the end of the DRX activation period may be determined when the inactivity timer times out.

[0236] In an embodiment of the present application, the timing for falling back on the number of receiving antennas is the end of the DRX activation period, so that the number of receiving antennas is controlled based on the DRX mechanism of the terminal device, so that the number of receiving antennas is adjusted with the length of the DRX activation period, thereby improving data transmission reliability.

[0237] The antenna control method provided in the embodiment of the present application is described below.

[0238] The more RF chains a terminal device uses, the more power it consumes. In the power model, the power consumption of two receive antennas is only 0.7 of that of four receive antennas. If the number of RF chains (i.e., the number of receive antennas) used by the terminal device can be adjusted, energy saving can be achieved.

[0239] If the terminal device uses a fixed number of receiving antennas (for example, always 2 receiving antennas), the power consumption is relatively large.

[0240] UE in idle state, such as Fig.12As shown, the detection of the following channels or signals is performed: SSB for channel wake-up, DCI formats 2-7 for PEI, DCI formats 1-0 for paging, and the corresponding PDSCH. The paging message is intended to cover all UEs in the cell (the aggregation level of DCI and PDSCH resources is large enough / sufficient). However, different UEs may have different channel conditions. If the UE can dynamically determine the number of RF chains (the number of receiver antennas), there is room for power saving for UEs with good channel conditions;

[0241] UE in connected state, such as Fig.13 As shown, detection of the following channels or signals is performed: DCI formats 2-6 for WUS with a maximum DCI size of 8 bits, DCI formats 1-1 or 1-0 for data scheduling with a maximum DCI size of 80 bits, and the corresponding PDSCH / PUSCH; for the UE to detect PDCCHs of different DCI sizes and PSDCH / PUSCHs of different TBSs, there is room for power saving.

[0242] like Fig.13 As shown, the DRX cycle includes an activation period (onduration) of DRX and a sleep period other than the activation period. The terminal device detects WUS during the sleep period of DRX and detects PDCCH and PDSCH during the onduration. The PDCCH is used to schedule the PDSCH, and the PDSCH is used for data transmission.

[0243] In the related art, there are two solutions for saving power:

[0244] Solution 1: When the UE receives a signal from the base station, it uses multiple antennas to achieve receive diversity gain or combined gain, thereby improving performance. At the same time, the increase in the number of active antennas consumes more UE energy. If some antennas are instructed to turn off when small data is transmitted or the channel state conditions are good enough, this is beneficial to the energy efficiency of the UE. In Release 15, each service cell is configured with a maximum downlink MIMO layer number (Lmax), which is common to all downlink bandwidth parts (BWP) of the service cell. In Release 16, the maximum downlink MIMO layer number can be configured for each downlink bandwidth part (BWP). The maximum downlink MIMO layer number can be changed by switching the BWP. The change in the maximum downlink MIMO layer number can reduce energy consumption by adaptively reducing the number of receiving antennas on the UE side.

[0245] like Fig.14As shown, for BWP1, Lmax is 4, and for BWP2, Lmax is 2. The BWP is BWP1, and the terminal device uses 4 receiving antennas. When the BWP is switched from BWP1 to BWP2, the terminal device uses 2 receiving antennas. Among them, there is a BWP switch delay when the BWP is switched from BWP1 to BWP2.

[0246] In the embodiment of the present application, for scheme 1, as Fig.15 As shown, the average power of a single time slot in the case of a baseline without involving the number of MIMO layers and adjustment of the number of MIMO layers, the UE adaptively adjusts the number of MIMO layers or the number of receiving antennas, providing an energy saving gain of up to 3%-30% for dynamic antenna adaptation and an energy saving gain of 6%-30% for semi-static antenna adaptation, which has a certain impact on system performance.

[0247] Option 2: Fig.16 As shown, when the UE is in good coverage, the PDCCH with 2 receive antennas can meet the BLER requirement. When the UE is in poor coverage, in order to perform PDCCH with 2 receive antennas, a high aggregation level can be used to meet the BLER purpose. The UE can consider and be triggered to detect PDCCH through 2 receive antennas to save UE power. When the authorized DCI is detected, the UE turns on the other two receive antennas and receives PDSCH and PDCCH through 4 receive antennas. The configured timer is triggered when the UE uses 2 receive antennas to monitor PDCCH. Once the authorized DCI is detected, the timer will be restarted. If the timer times out, the UE falls back to 2 receive antennas to save power. Among them, antenna adaptive adjustment does not affect throughput and delay, and the antenna saving gain can be 8% to 20% in good coverage and 3% to 20% in poor coverage. This scheme only considers the switching of receive antennas between PDCCH and corresponding PDSCH, and the power saving is limited.

[0248] In the antenna adjustment method provided in the embodiment of the present application, the number of receiving antennas is dynamically determined based on the channel conditions, different DCI sizes and different TBS sizes (for PDSCH / PUSCH), especially when the UE is configured with WUS and DRX configurations. The number of receiving antennas of the UE can be gradually switched from 1 to 2, and finally to 4, thereby achieving energy saving gains.

[0249] The following describes enhanced energy saving of UE in the idle state and the connected state respectively.

[0250] Enhanced energy saving for UE in idle state

[0251] Solution 1

[0252] For an idle UE, as shown in FIG. 17 , the number of receiving antennas (N) used for SSB detection is determined based on the measured values ​​(RSRP, RSRQ). ant,ssb ).

[0253] In one example, if RSRP is greater than a threshold of 1, then the number of receiving antennas N ant,ssb is 1, otherwise, N ant,ssb is 2.

[0254] The UE may further determine the number of detected SSBs based on the measurement value. For example, if RSRP is greater than a threshold, the number of detected SSBs is 2, otherwise, the number of detected SSBs is 4.

[0255] The UE determines the number of receiving antennas N for WUS detection based on the DCI size of the WUS (e.g., DCI format 2-7, 1-70 bits) and / or the DCI size of the scheduled paging message (e.g., DCI format 0-1, 40-70 bits). antwus .

[0256] In one example, if the DCI size of the WUS (DCI format 2-7) is less than the threshold 2, the number of receiving antennas N ant,wus is 1, otherwise, N ant,wus is 2. The DCI size of WUS is determined by high-level parameters.

[0257] In one example, if the ratio of the DCI size of the WUS (DCI format 2-7) to the DCI size of the scheduled paging message (DCI format 0-1) is less than a threshold value of 3 (eg, 0.3), the number of receiving antennas N is ant,wus is 1, otherwise, N ant,wus is 2.

[0258] The UE determines the number of receiving antennas N used for paging based on the TBS of the paging message. ant,paging .

[0259] In one example, if the TBS of the paging message is less than the threshold 4, the number of receiving antennas N ant,paging is 1, otherwise, N ant,paging is 2.

[0260] For an idle UE, based on RSPR / RSRQ and DCI size considerations, assuming that the UE wakes up from a sleep state, the number of receiving antennas can be gradually switched from 1 to 2, up to a maximum of 4.

[0261] Solution 2

[0262] Considering that the receiver detection performance is determined by the channel conditions, for simplicity, the number of receiver antennas is determined by the measurement results.

[0263] In one example, for the idle state, if RSRP is greater than a threshold of 1, then the number of receiving antennas N ant is 1 if yes, otherwise it is 2.

[0264] Option 3

[0265] The number of receiving antennas is not increased or decreased based on the previous detection performance.

[0266] like Fig.18 As shown, in the previous PO, if the WUS instructs the UE to wake up to monitor the PO or the paging PDCCH that schedules the paging message, but the UE fails to detect the paging message (e.g., PDSCH), then X is twice the number of antennas in the previous PO, otherwise X depends on the RSRP / Q value.

[0267] Option 4

[0268] like Fig.19 As shown, considering that the paging ratio is 3%, the UE determines that the number of receiving antennas used for SSB and WUS detection is 1. If WUS indicates wake-up for paging message monitoring, the UE will turn on additional receiving antennas for PO monitoring (for example, the number of receiving antennas is 2). If WUS is not received, it continues to sleep and the terminal device does not wake up.

[0269] - The design is consistent with the LP-WUS design, where the UE uses a low power receiver (LR) to monitor WUS and switches to the primary radio (MR) to monitor PO according to the WUS indication.

[0270] -The UE always uses 1 receive antenna to monitor the WUS and turns on an additional 1 receive antenna for paging message detection.

[0271] Enhanced energy saving for connected UE

[0272] Solution 1

[0273] like Fig. 20 As shown, for a UE in a connected state with a DRX configuration, the number of receiving antennas used for WUS monitoring is determined to be 1 (because the DCI size (eg, format 2-6) is less than 10 bits).

[0274] like Fig. 20 As shown, if the WUS instructs the UE to wake up during the DRX activation period (on duration) to monitor the control signal, the UE further turns on an additional antenna for PDCCH monitoring (e.g., format 1-1, DCI size 40-80 bits), and the number of receiving antennas used for control signal monitoring during the DRX activation period is 2. After the activation timer expires or the activity time ends, the receiver antenna falls back to 1 antenna.

[0275] like Fig. 20 As shown, if the control signal monitoring during the DRX activation period includes DL / UL grants, the UE further turns on additional antennas for PUSCH / PDSCH detection, and the number of receiving antennas for control signal monitoring in PUSCH / PPDSCH is 4 until the inactivity timer ends or the activation period ends.

[0276] For simplicity, the UE always uses 1 receive antenna to monitor WUS. If the UE is awakened based on WUS, an additional 1 receive antenna is turned on, and when the activation period timer expires or the activity time ends, it falls back to 1 receive antenna.

[0277] In the antenna control method provided in the embodiment of the present application, the following three points should be noted:

[0278] Requirement 1: For each frequency band, there is a minimum number of receive antennas, and the UE can dynamically determine the number of activated receive antennas, where the UE needs to be equipped with at least two Rx antenna ports in all operating frequency bands, except for bands n7, n38, n41, n77, n78, and n79, in which the UE needs to be equipped with at least four Rx antenna interfaces. This requirement applies when the frequency band is used as an independent frequency band or as part of a frequency band combination.

[0279] Requirement 2: The UE can report the corresponding capability of the maximum number of supported MIMO layers for DL ​​reception to the gNB. The determination of the number of antennas should follow the reported maximum number of MIMO layers.

[0280] Maximum number of MIMO layers for PDSCH maxNumberMIMO-LayersPDSCH = {n2,n4,n8}. Defines the maximum number of spatial multiplexing layers supported by the UE for DL ​​reception. For single CC standalone NR, at least 4 MIMO layers must be supported in the specified 4Rx as mandatory band for a given UE and at least 2 MIMO layers in FR2 via capability signaling. If not present, the UE does not support MIMO on this carrier.

[0281] Requirement 3: 3GPP does not regulate the limit on the number of receiver antennas for control signal detection. Therefore, in our design, for simplicity, the number of receiver antennas can be determined mainly for control signal detection. For further enhancement, the number of receiver antennas can also be determined for data detection based on the corresponding control signal detection and channel conditions.

[0282] On the third aspect, in order to implement the above-mentioned antenna control method, an antenna control device of an embodiment of the present application is applied to a terminal device, and a structural schematic diagram of the antenna control device is described below.

[0283] like Fig.21 As shown, the antenna control device 2100 includes:

[0284] The determining unit 2101 is configured to determine a first target quantity based on a target parameter corresponding to a first downlink channel or signal to be detected, wherein the target parameter represents at least one of the following: a channel condition, a type of the first downlink channel or signal, and a load size of the first downlink channel or signal;

[0285] A control unit 2102 is configured to control each of the first target number of antennas in the plurality of antennas included in the terminal device to be a receiving antenna;

[0286] The communication unit 2103 is configured to detect the first downlink channel or signal based on the first target number of receiving antennas.

[0287] In some embodiments, the first downlink channel or signal includes at least one of the following:

[0288] a channel or signal related to the reception of a paging message received by the terminal device in an idle state;

[0289] The terminal device receives a message related to the reception of data transmission in the connected state.

[0290] In some embodiments, the channel or signal related to the reception of the paging message received by the terminal device in the idle state includes at least one of the following:

[0291] A first physical downlink shared channel PDSCH, where the first PDSCH is used to carry the paging message;

[0292] A first physical downlink control channel PDCCH, where the first PDCCH is used to schedule the first PDSCH;

[0293] A first wake-up signal WUS, where the first WUS is used to wake up the terminal device to monitor the first PDCCH;

[0294] Synchronization signal.

[0295] In some embodiments, the channel or signal related to the reception of data transmission received by the terminal device in the connected state includes at least one of the following:

[0296] A first PDSCH, where the first PDSCH is used to carry the data transmission;

[0297] A first PDCCH, where the first PDCCH is used to schedule the first PDSCH;

[0298] A first WUS, wherein the first WUS is used to wake up the terminal device to monitor the first PDCCH.

[0299] In some embodiments, the determination unit 2101 is further used to determine the first target quantity corresponding to the first parameter included in the target parameter based on the correspondence between the type of the downlink channel or signal and the target quantity, where the first parameter characterizes the type of the first downlink channel or signal.

[0300] In some embodiments, the determining unit 2101 is further configured to:

[0301] Comparing a value of a second parameter included in the target parameter with a specified threshold value corresponding to the second parameter, the second parameter representing a channel condition or a load size of the first downlink channel or signal;

[0302] The first target quantity is determined from a plurality of candidate quantities based on the comparison result.

[0303] In some embodiments, the determining unit 2101 is further configured to:

[0304] When the terminal device is in an idle state and the first downlink channel or signal includes a first wake-up signal WUS, the first target quantity is determined based on a comparison result of a first ratio and a specified ratio, the first ratio being the ratio of a first downlink control information DCI size and a second DCI size included in the second parameter, the first DCI size being the DCI size of the first WUS, and the second DCI size being the DCI size of the first PDCCH.

[0305] In some embodiments, the determining unit 2101 is further configured to maintain the first target number of receiving antennas after the first target number of receiving antennas completes detection of the synchronization signal in the first downlink channel or signal;

[0306] The communication unit 2103 is also used to detect a second downlink channel or signal based on the first target number of receiving antennas after completing the detection of the synchronization signal, and the second downlink channel or signal includes at least one of the following: a first WUS, a first PDCCH and a first PDSCH.

[0307] In some embodiments, the determining unit 2101 is further configured to:

[0308] When the second WUS indicates that the terminal device in idle state wakes up to monitor the second PDCCH, and the terminal device successfully detects the paging message, the first target number of receiving antennas is maintained, the second PDCCH is used to schedule the second PDSCH, the second PDSCH is used to carry the paging message, and the detection of the second PDSCH is located before the detection of the first downlink channel or signal.

[0309] In some embodiments, the determining unit 2101 is further configured to:

[0310] When the second WUS indicates that the terminal device in the idle state wakes up to monitor the second PDCCH, and the terminal device fails to detect the paging message, determining a third target number based on the second target number, the third target number being the number of receiving antennas used for the second PDCCH detection, and the third target number being greater than the second target number;

[0311] The processor is further configured to control each antenna of the third target number of antennas among the multiple antennas to be a receiving antenna after the first target number of receiving antennas completes the detection of the first WUS;

[0312] The third target number of receiving antennas is used to detect the first PDCCH and the first PDSCH included in the first downlink channel or signal.

[0313] In some embodiments, the antenna control device further comprises:

[0314] The first back-off unit is used to back-off the number of receiving antennas to the first target number after completing the detection of the first PDSCH.

[0315] In some embodiments, the antenna control device 2100 further includes:

[0316] A first adjustment unit, configured to, after completing the detection of the first WUS included in the first downlink channel or signal, increase the first target number by a first adjustment value to obtain a fourth target number;

[0317] The control unit 2102 is further configured to control each of the fourth target number of antennas in the plurality of antennas to be a receiving antenna;

[0318] The communication unit 2103 is also used to detect a third downlink channel or signal based on the fourth target number of receiving antennas, and the third downlink channel or signal includes at least one of the following: a first PDCCH, a first PDSCH, the first PDCCH is used to schedule the first PDSCH, and the first PDSCH is used to carry paging messages or data transmission.

[0319] In some embodiments, in some embodiments, the antenna control device 2100 further includes:

[0320] A second adjustment unit is configured to, when the terminal device is in a connected state and a first PDCCH detected during an activation period of discontinuous reception DRX schedules a first PDSCH, add a second adjustment value to the fourth target number to obtain a fifth target number, and the first PDCCH is detected by receiving antennas of the fourth target number;

[0321] The control unit 2102 is further configured to control each of the fifth target number of antennas in the plurality of antennas to be a receiving antenna;

[0322] The communication unit 2103 is further used to detect the first PDSCH based on the fifth target number of receiving antennas.

[0323] In some embodiments, the antenna control device 2100 further includes:

[0324] The first fallback unit is used to fallback the number of receiving antennas to the first target number when the terminal device is in a connected state and the activation period of DRX ends.

[0325] It should be noted that the antenna control device provided in the embodiment of the present application includes the various units included, which can be implemented by a combination of a processor in an electronic device and multiple antennas; of course, it can also be implemented by a specific logic circuit; in the implementation process, the processor can be a central processing unit (CPU, Central Pr ocessing Unit), a microprocessor (MPU, Micro Processor Unit), a digital signal processor (DSP, Digital Signal Processor) or a field programmable gate array (FPGA, Field-Programma ble Gate Array), etc.

[0326] The description of the above device embodiment is similar to the description of the above method embodiment, and has similar beneficial effects as the method embodiment. For technical details not disclosed in the device embodiment of the present application, please refer to the description of the method embodiment of the present application for understanding.

[0327] It should be noted that in the embodiments of the present application, if the above-mentioned antenna control method is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiments of the present application can be essentially or partly embodied in the form of a software product that contributes to the relevant technology. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a magnetic disk or an optical disk. In this way, the embodiments of the present application are not limited to any specific combination of hardware and software.

[0328] In a fourth aspect, in order to implement the above-mentioned antenna control method, an embodiment of the present application provides an electronic device, including a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and when the processor executes the program, the steps in the antenna control method provided in the above-mentioned embodiment are implemented.

[0329] In a fifth aspect, an embodiment of the present application provides a storage medium, that is, a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps in the antenna control method provided in the above embodiment are implemented.

[0330] It should be noted here that the description of the above storage medium and device embodiments is similar to the description of the above method embodiments, and has similar beneficial effects as the method embodiments. For technical details not disclosed in the storage medium and device embodiments of this application, please refer to the description of the method embodiments of this application for understanding.

[0331] It should be understood that "one embodiment" or "an embodiment" mentioned throughout the specification means that specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "in one embodiment" or "in some embodiments" appearing throughout the specification may not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in various embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application. The above-mentioned sequence numbers of the embodiments of the present application are for description only and do not represent the advantages and disadvantages of the embodiments.

[0332] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0333] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0334] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units; they may be located in one place or distributed on multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0335] In addition, all functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may be a separate unit, or two or more units may be integrated into one unit; the above-mentioned integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0336] A person skilled in the art can understand that all or part of the steps of implementing the above method embodiment can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps of the above method embodiment; and the aforementioned storage medium includes: mobile storage devices, read-only memories (ROM), magnetic disks or optical disks, etc., various media that can store program codes.

[0337] Alternatively, if the above-mentioned integrated unit of the present application is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application can be essentially or partly embodied in the form of a software product that contributes to the relevant technology. The computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROMs, magnetic disks, or optical disks.

[0338] The above is only an implementation method of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A terminal device, comprising: processor and multiple antennas; The processor is configured to determine a first target quantity based on a target parameter corresponding to a first downlink channel or signal to be detected, wherein the target parameter represents at least one of the following: a channel condition, a type of the first downlink channel or signal, and a load size of the first downlink channel or signal; The processor is further configured to control each of the first target number of antennas among the plurality of antennas to be a receiving antenna; The first target number of receiving antennas is used to detect the first downlink channel or signal.

2. The terminal device according to claim 1, wherein the first downlink channel or signal comprises at least one of the following: a channel or signal related to the reception of a paging message received by the terminal device in an idle state; The terminal device receives a message related to the reception of data transmission in the connected state.

3. The terminal device according to claim 2, wherein the channel or signal related to the reception of the paging message received by the terminal device in the idle state comprises at least one of the following: A first physical downlink shared channel PDSCH, where the first PDSCH is used to carry the paging message; A first physical downlink control channel PDCCH, where the first PDCCH is used to schedule the first PDSCH; A first wake-up signal WUS, where the first WUS is used to wake up the terminal device to monitor the first PDCCH; Synchronization signal.

4. The terminal device according to claim 2, wherein the channel or signal related to the reception of data transmission received by the terminal device in the connected state comprises at least one of the following: A first PDSCH, where the first PDSCH is used to carry the data transmission; A first PDCCH, where the first PDCCH is used to schedule the first PDSCH; A first WUS, wherein the first WUS is used to wake up the terminal device to monitor the first PDCCH.

5. The terminal device according to claim 1, wherein the processor is further configured to: Based on the correspondence between the type of downlink channel or signal and the target quantity, the first target quantity corresponding to the first parameter included in the target parameter is determined, where the first parameter represents the type of the first downlink channel or signal.

6. The terminal device according to claim 1, wherein the processor is further configured to: Comparing a value of a second parameter included in the target parameter with a specified threshold value corresponding to the second parameter, the second parameter representing a channel condition or a load size of the first downlink channel or signal; The first target quantity is determined from a plurality of candidate quantities based on the comparison result.

7. The terminal device according to claim 6, wherein the terminal device is in an idle state. The processor is further used to determine the first target quantity based on a comparison result of a first ratio and a specified ratio when the first downlink channel or signal includes a first wake-up signal WUS, wherein the first ratio is a ratio of a first downlink control information DCI size and a second DCI size included in the second parameter, the first DCI size is the DCI size of the first WUS, and the second DCI size is the DCI size of the first PDCCH.

8. The terminal device according to claim 6, The processor is further configured to maintain the first target number of receiving antennas after the first target number of receiving antennas completes detection of the synchronization signal in the first downlink channel or signal; The first target number of receiving antennas is also used to detect a second downlink channel or signal after completing the detection of the synchronization signal, and the second downlink channel or signal includes at least one of the following: a first WUS, a first PDCCH and a first PDSCH.

9. The terminal device according to claim 5 or 6, The processor is further configured to, after completing the detection of the first WUS included in the first downlink channel or signal, increase the first target number by a first adjustment value to obtain a fourth target number; The processor is further configured to control each of the fourth target number of antennas among the plurality of antennas to be a receiving antenna; The fourth target number of receiving antennas is used to detect a third downlink channel or signal, and the third downlink channel or signal includes at least one of the following: a first PDCCH, a first PDSCH, the first PDCCH is used to schedule the first PDSCH, and the first PDSCH is used to carry paging messages or data transmission.

10. An antenna control method, applied to a terminal device, the terminal device comprising a plurality of antennas, the method comprising: Determining a first target quantity based on a target parameter corresponding to a first downlink channel or signal to be detected, wherein the target parameter represents at least one of the following: a channel condition, a type of the first downlink channel or signal, and a load size of the first downlink channel or signal; Control each of the first target number of antennas among the plurality of antennas to be a receiving antenna; The first downlink channel or signal is detected based on the first target number of receiving antennas.

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