Beam polarization direction determination method and apparatus, and storage medium

Abstract

Embodiments of the present application provide a method, device and storage medium for determining a beam polarization direction, the method is applied to a terminal and includes: receiving indication information sent by a network device; the indication information is used to indicate an antenna port type and an antenna port number; determining a beam polarization direction corresponding to the antenna port number based on the antenna port type indicated by the indication information and an association relationship between the antenna port type and the beam polarization direction. According to the embodiments of the present application, the antenna port type is associated with the beam polarization direction, the network device indicates the antenna port type and the antenna port number, the beam polarization direction is implicitly indicated, and the terminal selects a corresponding polarization beam for data transmission according to the indication of the network device, so that the best system performance is obtained.

Description

Technical Field

[0001] This application relates to the field of wireless communication technology, and in particular to a method, apparatus and storage medium for determining beam polarization direction. Background Technology

[0002] In multi-beam mobile satellite communication systems employing full frequency reuse, inter-beam interference (IBI) is a major technical bottleneck for improving system throughput. Current mainstream research suggests treating the channel between the satellite-side multi-beams and multiple users as a multiple-input multiple-output (MIMO) channel. By implementing multi-beam cooperative transmission, IBI can be effectively reduced, leveraging the advantages of multi-beam coverage.

[0003] Because satellite channels are mostly line-of-sight (LOS) channels with a lack of scattering environment, the channel between the satellite and the user depends almost entirely on their relative positions. This results in extremely high correlation between the channels of the various beams of the satellite and the user. To meet the requirements of MIMO channels, additional polarization measures need to be added to each beam to isolate them from each other.

[0004] The propagation environment of satellite communication differs significantly from that of terrestrial mobile communication systems. The channels of multiple beams between a satellite and the same terminal are almost identical, requiring the use of multiple polarized beams to construct MIMO transmission. Furthermore, the coherence between the antenna ports of corresponding beams is almost entirely determined by the antenna polarization performance. Therefore, a corresponding transmission mechanism needs to be designed. However, in the discussions of the 3rd Generation Partnership Project (3GPP), the relevant technical solutions were completely adopted from the terrestrial New Radio (NR) design, meaning there was no polarization distinction between beams, and the channels of the beams still exhibited extremely high correlation, leading to a degradation in system performance. Summary of the Invention

[0005] To address the problems existing in the prior art, embodiments of this application provide a method, apparatus, and storage medium for determining beam polarization direction.

[0006] In a first aspect, embodiments of this application provide a beam polarization direction determination method, applied to a terminal, including:

[0007] Receive indication information sent by the network device; the indication information is used to indicate the antenna port type and antenna port number;

[0008] Based on the antenna port type indicated by the indication information and the correlation between the antenna port type and the beam polarization direction, the beam polarization direction corresponding to the antenna port number is determined.

[0009] In some embodiments, before determining the beam polarization direction corresponding to the antenna port number, the method further includes:

[0010] Obtain the correlation between antenna port type and beam polarization direction; the correlation between antenna port type and beam polarization direction is a preset correlation.

[0011] In some embodiments, before determining the beam polarization direction corresponding to the antenna port number, the method further includes:

[0012] Receive a first message sent by the network device; the first message contains the association between the antenna port type and the beam polarization direction.

[0013] In some embodiments, before receiving the first message sent by the network device, the method further includes:

[0014] Send a second message to the network device; the second message is used to assist in configuring the association between the antenna port type and the beam polarization direction.

[0015] In some embodiments, the second message includes the beam polarization direction supported by the terminal.

[0016] In some embodiments, before sending the second message to the network device, the method further includes:

[0017] The network device receives a third message, which includes a downlink channel measurement signal port number and a beam polarization direction corresponding to the downlink channel measurement signal port number.

[0018] The downlink channel measurement signal is received by the network device based on the downlink channel measurement signal port number and the beam polarization direction corresponding to the downlink channel measurement signal port number.

[0019] In some embodiments, the second message further includes information on the ratio of the first signal energy to the second signal energy; the first signal energy is the signal energy when the terminal receives the signal using a beam polarization direction different from that of the network device; the second signal energy is the signal energy when the terminal receives the signal using the same beam polarization direction as the network device.

[0020] In some embodiments, sending the second message to the network device includes:

[0021] The network device receives a fourth message, which includes an uplink channel measurement signal port number and a beam polarization direction corresponding to the uplink channel measurement signal port number.

[0022] The second message is sent to the network device based on the uplink channel measurement signal port number and the beam polarization direction corresponding to the uplink channel measurement signal port number.

[0023] In some embodiments, the method further includes:

[0024] Multiple data streams can be transmitted simultaneously using ports corresponding to multiple beam polarization directions.

[0025] In some embodiments, the method further includes:

[0026] A data stream can be transmitted alternately using ports corresponding to multiple beam polarization directions in a time-division multiplexing manner, or a data stream can be transmitted using a port corresponding to one beam polarization direction.

[0027] In some embodiments, the method further includes:

[0028] Receives a broadcast beam with a polarization direction;

[0029] It can receive data beams with the same or different polarization directions.

[0030] Secondly, embodiments of this application provide a beam polarization direction determination method, applied to network devices, including:

[0031] Send indication information to the terminal; the indication information is used to indicate the antenna port type and antenna port number; the antenna port type is used to determine the beam polarization direction corresponding to the antenna port number based on the correlation between the antenna port type and the beam polarization direction.

[0032] In some embodiments, before sending the indication information to the terminal, the method further includes:

[0033] Obtain the correlation between antenna port type and beam polarization direction; the correlation between antenna port type and beam polarization direction is a preset correlation.

[0034] In some embodiments, before sending the indication information to the terminal, the method further includes:

[0035] Send a first message to the terminal; the first message contains the association between the antenna port type and the beam polarization direction.

[0036] In some embodiments, before sending the first message to the terminal, the method further includes:

[0037] Receive the second message sent by the terminal;

[0038] Configure the association between antenna port type and beam polarization direction based on the second message.

[0039] In some embodiments, the second message includes the beam polarization direction supported by the terminal.

[0040] In some embodiments, before receiving the second message sent by the terminal, the method further includes:

[0041] A third message is sent to the terminal, the third message containing the downlink channel measurement signal port number and the beam polarization direction corresponding to the downlink channel measurement signal port number;

[0042] Based on the downlink channel measurement signal port number and the beam polarization direction corresponding to the downlink channel measurement signal port number, the downlink channel measurement signal is sent to the terminal.

[0043] In some embodiments, the second message further includes information on the ratio of the first signal energy to the second signal energy; the first signal energy is the signal energy when the terminal receives the signal using a beam polarization direction different from that of the network device; the second signal energy is the signal energy when the terminal receives the signal using the same beam polarization direction as the network device.

[0044] In some embodiments, receiving a second message sent by the terminal includes:

[0045] A fourth message is sent to the terminal, the fourth message containing the uplink channel measurement signal port number and the beam polarization direction corresponding to the uplink channel measurement signal port number;

[0046] The second message is sent by the receiving terminal based on the uplink channel measurement signal port number and the beam polarization direction corresponding to the uplink channel measurement signal port number.

[0047] In some embodiments, the method further includes:

[0048] Multiple data streams can be transmitted simultaneously using ports corresponding to multiple beam polarization directions.

[0049] In some embodiments, the method further includes:

[0050] A data stream can be transmitted alternately using ports corresponding to multiple beam polarization directions in a time-division multiplexing manner, or a data stream can be transmitted using a port corresponding to one beam polarization direction.

[0051] In some embodiments, the method further includes:

[0052] Transmit broadcast beams and data beams with the same or different polarization directions.

[0053] Thirdly, embodiments of this application provide a terminal, including a memory, a transceiver, and a processor:

[0054] A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations:

[0055] Receive indication information sent by the network device; the indication information is used to indicate the antenna port type and antenna port number;

[0056] Based on the antenna port type indicated by the indication information and the correlation between the antenna port type and the beam polarization direction, the beam polarization direction corresponding to the antenna port number is determined.

[0057] Fourthly, embodiments of this application provide a network device, including a memory, a transceiver, and a processor:

[0058] A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations:

[0059] Send indication information to the terminal; the indication information is used to indicate the antenna port type and antenna port number; the antenna port type is used to determine the beam polarization direction corresponding to the antenna port number based on the correlation between the antenna port type and the beam polarization direction.

[0060] Fifthly, embodiments of this application provide a beam polarization direction determination device, comprising:

[0061] The first receiving module is used to receive indication information sent by the network device; the indication information is used to indicate the antenna port type and antenna port number.

[0062] The determination module is used to determine the beam polarization direction corresponding to the antenna port number based on the antenna port type indicated by the indication information and the correlation between the antenna port type and the beam polarization direction.

[0063] In some embodiments, the apparatus includes a first acquisition module, which is configured to acquire the association between the antenna port type and the beam polarization direction before determining the beam polarization direction corresponding to the antenna port number; the association between the antenna port type and the beam polarization direction is a preset association.

[0064] In some embodiments, the apparatus includes a second receiving module, which is configured to receive a first message sent by the network device before determining the beam polarization direction corresponding to the antenna port number; the first message contains the association between the antenna port type and the beam polarization direction.

[0065] In some embodiments, the apparatus further includes a second transmitting module, which is configured to transmit a second message to the network device before receiving the first message transmitted by the network device; the second message is used to assist in configuring the association between the antenna port type and the beam polarization direction.

[0066] In some embodiments, the second message includes the beam polarization direction supported by the terminal.

[0067] In some embodiments, the apparatus further includes a third receiving module and a third transmitting module, wherein:

[0068] The third receiving module is configured to receive a third message sent by the network device before sending the second message to the network device. The third message includes a downlink channel measurement signal port number and a beam polarization direction corresponding to the downlink channel measurement signal port number.

[0069] The third transmitting module is used to receive the downlink channel measurement signal transmitted by the network device based on the downlink channel measurement signal port number and the beam polarization direction corresponding to the downlink channel measurement signal port number.

[0070] In some embodiments, the second message further includes information on the ratio of the first signal energy to the second signal energy; the first signal energy is the signal energy when the terminal receives the signal using a beam polarization direction different from that of the network device; the second signal energy is the signal energy when the terminal receives the signal using the same beam polarization direction as the network device.

[0071] In some embodiments, the second transmitting module is further configured to receive a fourth message sent by the network device, the fourth message including an uplink channel measurement signal port number and a beam polarization direction corresponding to the uplink channel measurement signal port number;

[0072] The second message is sent to the network device based on the uplink channel measurement signal port number and the beam polarization direction corresponding to the uplink channel measurement signal port number.

[0073] In some embodiments, the apparatus further includes a first transmission module, which is configured to simultaneously transmit multiple data streams using ports corresponding to multiple beam polarization directions.

[0074] In some embodiments, the apparatus further includes a second transmission module, which is configured to transmit a data stream alternately using ports corresponding to multiple beam polarization directions in a time-division multiplexing manner, or to transmit a data stream using a port corresponding to one beam polarization direction.

[0075] In some embodiments, the apparatus further includes a fourth receiving module, which is used to receive a broadcast beam with one polarization direction and to receive data beams with the same or different polarization directions.

[0076] Sixthly, embodiments of this application provide a beam polarization direction determination device, comprising:

[0077] The first transmitting module is used to send indication information to the terminal; the indication information is used to indicate the antenna port type and antenna port number; the antenna port type is used to determine the beam polarization direction corresponding to the antenna port number based on the correlation between the antenna port type and the beam polarization direction.

[0078] In some embodiments, the device further includes a second acquisition module, which is configured to acquire the association between antenna port type and beam polarization direction before sending indication information to the terminal; the association between antenna port type and beam polarization direction is a preset association.

[0079] In some embodiments, the apparatus further includes a fourth transmitting module, which is configured to transmit a first message to the terminal before transmitting the indication information to the terminal; the first message contains the association between the antenna port type and the beam polarization direction.

[0080] In some embodiments, the apparatus further includes a fifth receiving module and a configuration module, wherein:

[0081] The fifth receiving module is used to receive the second message sent by the terminal before sending the first message to the terminal;

[0082] The configuration module is used to configure the association between the antenna port type and the beam polarization direction based on the second message.

[0083] In some embodiments, the second message includes the beam polarization direction supported by the terminal.

[0084] In some embodiments, the apparatus further includes a fifth transmitting module and a sixth transmitting module; wherein:

[0085] The fifth sending module is used to send a third message to the terminal before receiving the second message sent by the terminal. The third message includes a downlink channel measurement signal port number and a beam polarization direction corresponding to the downlink channel measurement signal port number.

[0086] The sixth transmitting module is used to transmit a downlink channel measurement signal to the terminal based on the downlink channel measurement signal port number and the beam polarization direction corresponding to the downlink channel measurement signal port number.

[0087] In some embodiments, the second message further includes information on the ratio of the first signal energy to the second signal energy; the first signal energy is the signal energy when the terminal receives the signal using a beam polarization direction different from that of the network device; the second signal energy is the signal energy when the terminal receives the signal using the same beam polarization direction as the network device.

[0088] In some embodiments, the fifth receiving module is further configured to send a fourth message to the terminal, the fourth message including an uplink channel measurement signal port number and a beam polarization direction corresponding to the uplink channel measurement signal port number;

[0089] The second message is sent by the receiving terminal based on the uplink channel measurement signal port number and the beam polarization direction corresponding to the uplink channel measurement signal port number.

[0090] In some embodiments, the apparatus further includes a third transmission module, which is configured to simultaneously transmit multiple data streams using ports corresponding to multiple beam polarization directions.

[0091] In some embodiments, the apparatus further includes a fourth transmission module, which is configured to transmit a data stream alternately using ports corresponding to multiple beam polarization directions in a time-division multiplexing manner, or to transmit a data stream using a port corresponding to one beam polarization direction.

[0092] In some embodiments, the apparatus further includes a seventh transmitting module, which is used to transmit broadcast beams and data beams with the same polarization direction or different polarization directions.

[0093] In a seventh aspect, embodiments of this application also provide a processor-readable storage medium storing a computer program for causing the processor to execute the beam polarization direction determination method as described in the first or second aspect above.

[0094] Eighthly, embodiments of this application also provide a computer-readable storage medium storing a computer program for causing a computer to perform the beam polarization direction determination method as described in the first or second aspect above.

[0095] In a ninth aspect, embodiments of this application also provide a communication device readable storage medium storing a computer program for causing the communication device to perform the beam polarization direction determination method described in the first or second aspect above.

[0096] In a tenth aspect, embodiments of this application also provide a chip product readable storage medium storing a computer program for causing the chip product to perform the beam polarization direction determination method described in the first or second aspect above.

[0097] The beam polarization direction determination method, apparatus, and storage medium provided in this application associate antenna port type with beam polarization direction and indicate the antenna port type and antenna port number through network device to achieve implicit indication of beam polarization direction. The terminal selects the corresponding polarized beam for data transmission according to the indication of the network device, thereby obtaining the best system performance. Attached Figure Description

[0098] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0099] Figure 1 This is a schematic diagram of a single-satellite multi-beam single-user MIMO system;

[0100] Figure 2 This is one of the flowcharts illustrating the beam polarization direction determination method provided in the embodiments of this application;

[0101] Figure 3 This is a flowchart of beam polarization direction determination based on terminal capability reporting provided in an embodiment of this application;

[0102] Figure 4 This is a second schematic flowchart of the beam polarization direction determination method provided in the embodiments of this application;

[0103] Figure 5 This is a schematic diagram of the terminal structure provided in the embodiments of this application;

[0104] Figure 6 This is a schematic diagram of the network device provided in the embodiments of this application;

[0105] Figure 7 This is one of the structural schematic diagrams of the beam polarization direction determination device provided in the embodiments of this application;

[0106] Figure 8 This is the second schematic diagram of the beam polarization direction determination device provided in the embodiments of this application. Detailed Implementation

[0107] Figure 1 This is a schematic diagram of a single-satellite multi-beam single-user MIMO system, as shown below. Figure 1 As shown, in this system, the terminal connects to only one satellite, and the satellite sends multiple beams to the terminal to form MIMO communication. In a single-satellite multi-beam system, the correlation between the multiple beams is high because the LOS channel between the user and the satellite is relatively fixed. Therefore, the satellite needs to configure different polarizations for different beams to ensure their mutual isolation. Since the beams themselves have high isolation, the relative position of the user's receiving antenna is no longer important.

[0108] The specific polarization of the beam can be linear polarization, left-handed circular polarization (LHCP), or right-handed circular polarization (RHCP), etc. Since linear polarization and circular polarization can be converted to each other, the terminal and the satellite may choose different polarization modes for transmission and reception, leading to a degradation in system performance.

[0109] To address the aforementioned technical issues, this application's embodiments associate antenna port type with beam polarization direction. The network device implicitly indicates the beam polarization direction by indicating the antenna port type and antenna port number. The terminal selects the corresponding polarized beam for data transmission based on the network device's indication.

[0110] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0111] Figure 2 This is one of the flowcharts illustrating the beam polarization direction determination method provided in this application embodiment, such as... Figure 2As shown in the figure, this application provides a method for determining beam polarization direction, the execution subject of which can be a terminal, such as a mobile phone, etc., and the method includes:

[0112] Step 201: Receive indication information sent by the network device; the indication information is used to indicate the antenna port type and antenna port number.

[0113] Specifically, the terminal receives indication information sent by the network device. The indication information can be carried on any message sent by the network device to the terminal. The indication information is used to indicate the antenna port type and antenna port number.

[0114] Antenna port type is classified according to the signal transmitted by the antenna port.

[0115] For example, the antenna port type corresponding to the port that transmits Channel State Information-Reference Signals (CSI-RS) is a CSI-RS port.

[0116] For example, the antenna port type corresponding to the port that transmits demodulation reference signals (DMRS) is a DMRS port.

[0117] Since there are multiple antenna ports, they can be numbered to clearly identify the specific antenna port being referred to. Each antenna port has a corresponding number called an antenna port number. One type of antenna port may have one or more antenna port numbers.

[0118] Step 202: Based on the antenna port type indicated by the indication information and the correlation between the antenna port type and the beam polarization direction, determine the beam polarization direction corresponding to the antenna port number.

[0119] Specifically, there is a correspondence between antenna port type and beam polarization direction; one antenna port number under one antenna port type corresponds to one beam polarization direction.

[0120] The terminal obtains the indicated antenna port type and antenna port number based on the instruction information sent by the network device, and then determines the beam polarization direction corresponding to the antenna port number based on the correlation between the antenna port type and the beam polarization direction.

[0121] For example, if the network device sends an indication message for DMRS port 1, and the terminal obtains that the antenna port type is DMRS port and the antenna port number is 1, and if the beam polarization direction corresponding to DMRS port 1 is right-hand circular polarization, then it is determined that the beam polarization direction corresponding to antenna port number 1 used for DMRS transmission is right-hand circular polarization.

[0122] The beam polarization direction determination method provided in this application associates the antenna port type with the beam polarization direction and uses a network device to indicate the antenna port type and antenna port number, thereby implicitly indicating the beam polarization direction. The terminal selects the corresponding polarized beam for data transmission according to the indication of the network device, thus obtaining the best system performance.

[0123] In some embodiments, before determining the beam polarization direction corresponding to the antenna port number, the method further includes:

[0124] Obtain the correlation between antenna port type and beam polarization direction; the correlation between antenna port type and beam polarization direction is a preset correlation.

[0125] Specifically, before determining the beam polarization direction corresponding to the antenna port number by utilizing the correlation between antenna port type and beam polarization direction, the terminal needs to clarify the correlation between antenna port type and beam polarization direction.

[0126] The association between antenna port type and beam polarization direction can be preset, that is, the default association between the terminal and the network device.

[0127] The terminal can directly obtain the preset association between antenna port type and beam polarization direction from its local storage.

[0128] The beam polarization direction determination method provided in this application avoids the need for reporting or measurement by pre-setting the correlation between antenna port type and beam polarization direction, thus simplifying the process of determining the correlation between antenna port type and beam polarization direction.

[0129] In some embodiments, before determining the beam polarization direction corresponding to the antenna port number, the method further includes:

[0130] Receive a first message sent by the network device; the first message contains the association between the antenna port type and the beam polarization direction.

[0131] Specifically, the relationship between antenna port type and beam polarization direction can also be configured by network devices.

[0132] After the network device completes the association between the antenna port type and the beam polarization direction, the terminal receives the first message sent by the network device. The first message can be a Radio Resource Control (RRC) message or a Media Access Control (MAC) message. The first message contains the association between the antenna port type and the beam polarization direction configured by the network device.

[0133] The beam polarization direction determination method provided in this application enriches the ways to obtain the correlation between antenna port type and beam polarization direction by the terminal obtaining the correlation between the antenna port type and beam polarization direction configured by the network device.

[0134] In some embodiments, before receiving the first message sent by the network device, the method further includes:

[0135] Send a second message to the network device; the second message is used to assist in configuring the association between the antenna port type and the beam polarization direction.

[0136] Specifically, before the terminal receives the first message sent by the network device, that is, before the terminal receives the association between the antenna port type and the beam polarization direction configured by the network device, the terminal sends a second message to the network device. The second message may be a terminal capability message, a downlink channel measurement feedback message, or an uplink channel measurement message.

[0137] After receiving the second message, the network device first obtains the feasible beam polarization direction based on the second message, and then configures the beam polarization direction for the antenna port type based on the obtained feasible beam polarization direction.

[0138] The beam polarization direction determination method provided in this application embodiment allows the terminal to send a second message to the network device, which facilitates the network device in configuring the antenna port type and beam polarization direction.

[0139] In some embodiments, the second message includes the beam polarization direction supported by the terminal.

[0140] Specifically, when the second message is a terminal capability message, the second message includes the beam polarization directions supported by the terminal. The beam polarization directions supported by the terminal include the beam receiving polarization direction and the beam transmitting polarization direction supported by the terminal.

[0141] Figure 3 This is a flowchart of beam polarization direction determination based on terminal capability reporting provided in an embodiment of this application, such as... Figure 3 As shown, the terminal sends a second message to the network device, which is a capability reporting process. The terminal reports the beam polarization directions it supports to the network device. The network device selects a suitable beam polarization direction from the terminal's supported beam polarization directions and associates it with the antenna port type. After the association is complete, the terminal receives the association relationship between the antenna port type and the beam polarization direction sent by the network device. Then, the terminal and the network device use this association relationship to perform MIMO transmission.

[0142] The beam polarization direction determination method provided in this application allows the terminal to report the beam polarization directions it supports to the network device, which is beneficial for the network device to configure the antenna port type and beam polarization direction.

[0143] In some embodiments, before sending the second message to the network device, the method further includes:

[0144] The network device receives a third message, which includes a downlink channel measurement signal port number and a beam polarization direction corresponding to the downlink channel measurement signal port number.

[0145] The downlink channel measurement signal is received by the network device based on the downlink channel measurement signal port number and the beam polarization direction corresponding to the downlink channel measurement signal port number.

[0146] Specifically, when the second message is a downlink channel measurement feedback message, the downlink channel measurement feedback message may contain channel state information (CSI). Before the terminal sends the downlink channel measurement feedback message to the network device, the terminal needs to receive the downlink channel measurement signal sent by the network device. The downlink channel measurement signal may be CSI-RS.

[0147] The specific process by which the terminal receives the downlink channel measurement signal sent by the network device is as follows:

[0148] The terminal selects a beam polarization direction to camp on based on the strength of the synchronization signal and initiates initial access according to the camped beam polarization direction. Both the terminal and the network device set the beam polarization direction used for initial access as the default beam polarization direction, and both the terminal and the network device associate the Physical Downlink Control Channel (PDCCH) port and the Physical Uplink Control Channel (PUCCH) port with the default beam polarization direction.

[0149] The terminal receives a third message from the network device via the PDCCH. This third message contains the downlink channel measurement signal port number and the beam polarization direction corresponding to that port number. The downlink channel measurement signal port number is the port number associated by the network device for each downlink beam polarization direction it supports. This port number can be a CSI-RS port number.

[0150] After both the terminal and the network device acquire the downlink channel measurement signal port number and the beam polarization direction corresponding to the downlink channel measurement signal port number, the terminal uses the downlink channel measurement signal port number and its corresponding beam polarization direction to receive the downlink channel measurement signal.

[0151] After receiving the downlink channel measurement signal, the terminal sends a downlink channel measurement feedback message to the network device.

[0152] The network device obtains the feasible downlink beam polarization direction based on the downlink channel measurement feedback message, and then configures the feasible downlink beam polarization direction for the antenna port type. The terminal obtains the configuration information through the PDCCH.

[0153] For example, the network device obtains a feasible downlink beam polarization direction based on the CSI, and then configures a feasible downlink beam polarization direction for each DMRS port corresponding to the PDSCH. The terminal receives the beam polarization direction associated with the DMRS port corresponding to the PDSCH via the PDCCH.

[0154] The beam polarization direction determination method provided in this application embodiment allows the terminal to receive downlink channel measurement signals sent by the network device and then send downlink channel measurement feedback messages to the network device, which is beneficial for the network device to configure the antenna port type and beam polarization direction.

[0155] In some embodiments, the second message further includes information on the ratio of the first signal energy to the second signal energy; the first signal energy is the signal energy when the terminal receives the signal using a beam polarization direction different from that of the network device; the second signal energy is the signal energy when the terminal receives the signal using the same beam polarization direction as the network device.

[0156] Specifically, when the second message is a downlink channel measurement feedback message, the downlink channel measurement feedback message may also include information on the ratio of the first signal energy to the second signal energy.

[0157] For example, when a network device transmits downlink channel measurement signals using beam polarization direction A, and a terminal receives downlink channel measurement signals using beam polarization direction B, the signal energy received by the downlink channel measurement signal port is the first signal energy.

[0158] For example, when a network device transmits downlink channel measurement signals using beam polarization direction A, and a terminal receives downlink channel measurement signals using beam polarization direction A, the signal energy received by the downlink channel measurement signal port is the second signal energy.

[0159] The ratio of the first signal energy to the second signal energy can be either the first signal energy to the second signal energy or the second signal energy to the first signal energy.

[0160] The process of adding the ratio of the first signal energy to the second signal energy to the downlink channel measurement feedback message can be as follows:

[0161] Step 1: The terminal receives all downlink channel measurement signals transmitted on a Physical Downlink Shared Channel (PDSCH) port.

[0162] Step 2: The terminal calculates the first signal energy and the second signal energy of the uplink and downlink channel measurement signals transmitted from the PDSCH port.

[0163] Step 3: The terminal calculates the ratio of the first signal energy to the second signal energy.

[0164] Step 4: The terminal adds the information of the ratio of the first signal energy to the second signal energy to the downlink channel measurement feedback message.

[0165] Step 5: The terminal repeats steps 1-4 until the ratio of the first signal energy to the second signal energy has been calculated for all PDSCH ports.

[0166] The beam polarization direction determination method provided in this application allows the terminal to send information about the ratio of signal energy corresponding to different polarization directions to signal energy corresponding to the same polarization direction to the network device. This facilitates the network device in configuring the antenna port type and beam polarization direction.

[0167] In some embodiments, sending the second message to the network device includes:

[0168] The network device receives a fourth message, which includes an uplink channel measurement signal port number and a beam polarization direction corresponding to the uplink channel measurement signal port number.

[0169] The second message is sent to the network device based on the uplink channel measurement signal port number and the beam polarization direction corresponding to the uplink channel measurement signal port number.

[0170] Specifically, when the second message is an uplink channel measurement message, the uplink channel measurement message can be an uplink sounding reference signal (SRS). Before the terminal sends the uplink channel measurement message to the network device, the terminal needs to obtain the uplink channel measurement signal port number and its corresponding beam polarization direction.

[0171] The uplink channel measurement signal port number and its corresponding beam polarization direction are configured by the network device. The network device associates an uplink channel measurement signal port number with each uplink beam polarization direction it supports. The uplink channel measurement signal port number can be an SRS port number.

[0172] After the network device completes the association between the uplink beam polarization direction and the uplink channel measurement signal port number, the terminal receives the fourth message sent by the network device. The fourth message contains the uplink channel measurement signal port number and the beam polarization direction corresponding to the uplink channel measurement signal port number.

[0173] After both the terminal and the network device acquire the uplink channel measurement signal port number and the beam polarization direction corresponding to the uplink channel measurement signal port number, the terminal uses the uplink channel measurement signal port number and its corresponding beam polarization direction to send an uplink channel measurement message to the network device.

[0174] The network device obtains the feasible uplink beam polarization direction based on the uplink channel measurement message, and then configures the feasible uplink beam polarization direction for the antenna port type. The terminal obtains the configuration information through the PDCCH.

[0175] For example, the network device obtains a feasible uplink beam polarization direction based on the SRS signal, and then configures a feasible uplink beam polarization direction for each DMRS port corresponding to the Physical Uplink Shared Channel (PUSCH). The terminal receives the beam polarization direction associated with the DMRS port corresponding to the PUSCH via the PDCCH.

[0176] The beam polarization direction determination method provided in this application embodiment involves the terminal receiving the uplink channel measurement signal port number and its corresponding beam polarization direction sent by the network device. The network device then sends an uplink channel measurement message based on the uplink channel measurement signal port number and its corresponding beam polarization direction. This facilitates the network device in configuring the antenna port type and beam polarization direction based on the uplink channel measurement message.

[0177] In some embodiments, after a preset condition is met, the uplink beam polarization direction corresponding to the default antenna port type of the terminal is the same as its corresponding downlink beam polarization direction.

[0178] The preset conditions may be that the terminal fails to obtain the uplink channel measurement signal port number and the beam polarization direction corresponding to the uplink channel measurement signal port number within a preset time, or that the terminal fails to send an uplink channel measurement message to the network device within a preset time.

[0179] For example, after the terminal obtains the beam polarization direction associated with the DMRS port corresponding to the PDSCH, if the terminal does not obtain the SRS port number and the beam polarization direction corresponding to the SRS port number within a preset time, or if the terminal does not send an SRS signal to the network device within a preset time, the terminal defaults to the same beam polarization direction associated with the DMRS port corresponding to the PUSCH and the beam polarization direction associated with the DMRS port corresponding to the PDSCH.

[0180] The beam polarization direction determination method provided in this application simplifies the process of obtaining the beam polarization direction corresponding to the antenna port type. After obtaining the downlink beam polarization direction corresponding to the antenna port type, the terminal can obtain the uplink beam polarization direction corresponding to the antenna port type in the same way as the downlink beam polarization direction.

[0181] In some embodiments, the method further includes:

[0182] Multiple data streams can be transmitted simultaneously using ports corresponding to multiple beam polarization directions.

[0183] Specifically, during data transmission, the terminal needs to assess its own transmission capabilities. If the terminal can simultaneously receive or transmit beams in multiple beam polarization directions, then during downlink transmission, the terminal uses the ports corresponding to the multiple beam polarization directions to simultaneously receive multiple data streams; during uplink transmission, the terminal uses the ports corresponding to the multiple beam polarization directions to simultaneously transmit multiple data streams.

[0184] For example, when multiple streams of downlink transmission are constructed from beams with multiple beam polarization directions, the network device indicates to the terminal the various beam polarization directions used in this downlink transmission through the DMRS port indication in the Downlink Control Information (DCI).

[0185] After receiving DCI information, if the beam polarization directions indicated by the DMRS port do not exceed the beam polarization directions of the terminal's own antenna for simultaneously receiving various beams (i.e., the terminal can simultaneously receive all beams used in this transmission), then according to the beam polarization directions indicated by the DMRS port information, the terminal adjusts the beam polarization directions corresponding to each PDSCH port, and uses the DMRS port corresponding to each PDSCH to simultaneously receive downlink data transmitted in multiple beam polarization directions, and merges the received downlink data.

[0186] The beam polarization direction determination method provided in this application embodiment enables the terminal to simultaneously transmit multiple data streams by utilizing ports corresponding to multiple beam polarization directions, thereby achieving multi-stream transmission.

[0187] In some embodiments, the method further includes:

[0188] A data stream can be transmitted alternately using ports corresponding to multiple beam polarization directions in a time-division multiplexing manner, or a data stream can be transmitted using a port corresponding to one beam polarization direction.

[0189] Specifically, if the terminal can only receive or transmit a beam in one beam polarization direction at any given time, then during downlink transmission, the terminal uses time-division multiplexing to alternately receive a data stream using ports corresponding to multiple beam polarization directions, or uses a port corresponding to one beam polarization direction to receive a data stream; during uplink transmission, the terminal uses time-division multiplexing to alternately transmit a data stream using ports corresponding to multiple beam polarization directions, or uses a port corresponding to one beam polarization direction to transmit a data stream.

[0190] For example, when a single-stream downlink transmission is constructed using beams with multiple beam polarization directions, the network device indicates to the terminal the various beam polarization directions used in this downlink transmission through the DMRS port indication in the DCI information.

[0191] After receiving DCI information, if the polarization direction of each beam indicated by the DMRS port exceeds the polarization direction of the beams that the terminal's own antenna can simultaneously receive, that is, if the terminal cannot simultaneously receive all the beams used in this transmission, then the terminal defaults to the network device using time-division multiplexing to complete the downlink transmission.

[0192] According to the time and frequency resources indicated by the DCI information, the terminal sequentially (from low to high port number) uses the beam polarization direction indicated by the DMRS port to receive downlink data on the corresponding time and frequency resources, and merges all the received downlink data.

[0193] The beam polarization direction determination method provided in this application embodiment enables the terminal to alternately transmit and receive multiple data streams using beams corresponding to multiple polarization directions in a time-division multiplexing manner, or to transmit a data stream using a beam corresponding to one polarization direction, thereby achieving single-stream transmission.

[0194] In some embodiments, the method further includes:

[0195] Receives a broadcast beam with a polarization direction;

[0196] It can receive data beams with the same or different polarization directions.

[0197] Specifically, for broadcast beams, whether during the initial access process or during the process of listening to system information, the terminal can only select to receive broadcast beams with one polarization direction.

[0198] For data beams, the terminal can receive data beams with the same polarization direction, as well as data beams with different polarization directions. Data beams with different polarization directions can be left-handed, right-handed, or linearly polarized data beams.

[0199] The beam polarization direction determination method provided in this application embodiment allows the terminal to receive broadcast beams and data beams in different ways.

[0200] Figure 4 This is a second schematic flowchart of the beam polarization direction determination method provided in the embodiments of this application, as shown below. Figure 4 The present application provides a method for determining beam polarization direction, the execution subject of which can be a network device, such as a satellite network device, etc., and the method includes:

[0201] Step 401: Send indication information to the terminal; the indication information is used to indicate the antenna port type and antenna port number; the antenna port type is used to determine the beam polarization direction corresponding to the antenna port number based on the correlation between the antenna port type and the beam polarization direction.

[0202] Specifically, the network device sends indication information to the terminal. The indication information can be carried in any message sent by the network device to the terminal. The indication information is used to indicate the antenna port type and antenna port number.

[0203] Antenna port type is classified according to the signal transmitted by the antenna port.

[0204] For example, the antenna port type corresponding to the port that transmits Channel State Information-Reference Signals (CSI-RS) is a CSI-RS port.

[0205] For example, the antenna port type corresponding to the port that transmits demodulation reference signals (DMRS) is a DMRS port.

[0206] Since there are multiple antenna ports, they can be numbered to clearly identify the specific antenna port being referred to. Each antenna port has a corresponding number called an antenna port number. One type of antenna port may have one or more antenna port numbers.

[0207] There is a correspondence between antenna port type and beam polarization direction; one antenna port number under one antenna port type corresponds to one beam polarization direction.

[0208] The terminal obtains the indicated antenna port type and antenna port number based on the instruction information sent by the network device, and then determines the beam polarization direction corresponding to the antenna port number based on the correlation between the antenna port type and the beam polarization direction.

[0209] For example, if the network device sends an indication message for DMRS port 1, and the terminal obtains that the antenna port type is DMRS port and the antenna port number is 1, and if the beam polarization direction corresponding to DMRS port 1 is right-hand circular polarization, then it is determined that the beam polarization direction corresponding to antenna port number 1 used for DMRS transmission is right-hand circular polarization.

[0210] The beam polarization direction determination method provided in this application associates the antenna port type with the beam polarization direction and uses a network device to indicate the antenna port type and antenna port number, thereby implicitly indicating the beam polarization direction. The terminal selects the corresponding polarized beam for data transmission according to the indication of the network device, thus obtaining the best system performance.

[0211] In some embodiments, before sending the indication information to the terminal, the method further includes:

[0212] Obtain the correlation between antenna port type and beam polarization direction; the correlation between antenna port type and beam polarization direction is a preset correlation.

[0213] Specifically, before a network device sends instruction information to a terminal, the network device needs to clarify the relationship between the antenna port type and the beam polarization direction.

[0214] The association between antenna port type and beam polarization direction can be preset, that is, the default association between the terminal and the network device.

[0215] The network device can directly obtain the preset association between antenna port type and beam polarization direction from its local storage.

[0216] The beam polarization direction determination method provided in this application avoids the need for reporting or measurement by pre-setting the correlation between antenna port type and beam polarization direction, thus simplifying the process of determining the correlation between antenna port type and beam polarization direction.

[0217] In some embodiments, before sending the indication information to the terminal, the method further includes:

[0218] Send a first message to the terminal; the first message contains the association between the antenna port type and the beam polarization direction.

[0219] Specifically, the relationship between antenna port type and beam polarization direction can also be configured by network devices.

[0220] After the network device completes the association between the antenna port type and the beam polarization direction, the network device sends a first message to the terminal. The first message can be a Radio Resource Control (RRC) message or a Media Access Control (MAC) message. The first message contains the association between the antenna port type and the beam polarization direction configured by the network device.

[0221] The beam polarization direction determination method provided in this application embodiment allows network devices to send the association between their configured antenna port type and beam polarization direction to the terminal for information, thus enriching the ways to obtain the association between antenna port type and beam polarization direction.

[0222] In some embodiments, before sending the first message to the terminal, the method further includes:

[0223] Receive the second message sent by the terminal;

[0224] Configure the association between antenna port type and beam polarization direction based on the second message.

[0225] Specifically, before the network device sends the first message to the terminal, that is, before the network device sends the association between the antenna port type and the beam polarization direction to the terminal, the network device receives the second message sent by the terminal. The second message may be a terminal capability message, a downlink channel measurement feedback message, or an uplink channel measurement message.

[0226] After receiving the second message, the network device first obtains the feasible beam polarization direction based on the second message, and then configures the beam polarization direction for the antenna port type based on the obtained feasible beam polarization direction.

[0227] The beam polarization direction determination method provided in this application embodiment enables the network device to configure the antenna port type and beam polarization direction by sending a second message through a receiving terminal.

[0228] In some embodiments, the second message includes the beam polarization direction supported by the terminal.

[0229] Specifically, when the second message is a terminal capability message, the second message includes the beam polarization directions supported by the terminal. The beam polarization directions supported by the terminal include the beam receiving polarization direction and the beam transmitting polarization direction supported by the terminal.

[0230] like Figure 3As shown, the network device receives the second message sent by the terminal, which is the terminal's capability report. The network device obtains the beam polarization directions supported by the terminal. From these supported beam polarization directions, the network device selects a suitable beam polarization direction and associates it with the antenna port type. Table 1 shows the association table between antenna port type and beam polarization direction. The network device completes the association between antenna port type and beam polarization direction according to Table 1. After the association is completed, the network device sends the association relationship between antenna port type and beam polarization direction to the terminal. Then, the terminal and the network device use the association relationship between antenna port type and beam polarization direction to perform MIMO transmission.

[0231] Table 1. Correlation between Antenna Port Type and Beam Polarization Direction

[0232]

[0233]

[0234] The beam polarization direction determination method provided in this application allows network devices to configure the antenna port type and beam polarization direction by receiving the beam polarization direction they support from the terminal.

[0235] In some embodiments, before receiving the second message sent by the terminal, the method further includes:

[0236] A third message is sent to the terminal, the third message containing the downlink channel measurement signal port number and the beam polarization direction corresponding to the downlink channel measurement signal port number;

[0237] Based on the downlink channel measurement signal port number and the beam polarization direction corresponding to the downlink channel measurement signal port number, the downlink channel measurement signal is sent to the terminal.

[0238] Specifically, when the second message is a downlink channel measurement feedback message, the downlink channel measurement feedback message may include CSI. Before the network device receives the downlink channel measurement feedback message, the network device needs to send a downlink channel measurement signal to the terminal, which may be CSI-RS.

[0239] The specific process by which network devices send downlink channel measurement signals is as follows:

[0240] Both the terminal and network devices set the beam polarization direction used for initial access as the default beam polarization direction, and both the terminal and network devices associate the PDCCH port and PUCCH port with the default beam polarization direction.

[0241] Network devices associate a downlink channel measurement signal port number with each downlink beam polarization direction they support. The downlink channel measurement signal port number can be a CSI-RS port number.

[0242] The network device sends a third message to the terminal via PDCCH. The third message contains the downlink channel measurement signal port number and the beam polarization direction corresponding to the downlink channel measurement signal port number.

[0243] After both the terminal and the network device acquire the downlink channel measurement signal port number and the beam polarization direction corresponding to the downlink channel measurement signal port number, the network device sends the downlink channel measurement signal to the terminal using the downlink channel measurement signal port number and its corresponding beam polarization direction.

[0244] After the terminal receives the downlink channel measurement signal, the network device receives the downlink channel measurement feedback message sent by the terminal.

[0245] The network device obtains the feasible downlink beam polarization direction based on the downlink channel measurement feedback message, then configures the feasible downlink beam polarization direction for the antenna port type, and notifies the terminal of the configuration status.

[0246] For example, the network device obtains a feasible downlink beam polarization direction based on the CSI, then configures a feasible downlink beam polarization direction for each DMRS port corresponding to the PDSCH, and notifies the terminal of the downlink configuration of the DMRS port.

[0247] The beam polarization direction determination method provided in this application embodiment involves a network device sending a downlink channel measurement signal to a terminal, then receiving a downlink channel measurement feedback message from the terminal, and configuring the antenna port type and beam polarization direction based on the downlink channel measurement feedback message.

[0248] In some embodiments, the second message further includes information on the ratio of the first signal energy to the second signal energy; the first signal energy is the signal energy when the terminal receives the signal using a beam polarization direction different from that of the network device; the second signal energy is the signal energy when the terminal receives the signal using the same beam polarization direction as the network device.

[0249] Specifically, when the second message is a downlink channel measurement feedback message, the downlink channel measurement feedback message may also include information on the ratio of the first signal energy to the second signal energy.

[0250] For example, when a network device transmits downlink channel measurement signals using beam polarization direction A, and a terminal receives downlink channel measurement signals using beam polarization direction B, the signal energy received by the downlink channel measurement signal port is the first signal energy.

[0251] For example, when a network device transmits downlink channel measurement signals using beam polarization direction A, and a terminal receives downlink channel measurement signals using beam polarization direction A, the signal energy received by the downlink channel measurement signal port is the second signal energy.

[0252] The ratio of the first signal energy to the second signal energy can be either the first signal energy to the second signal energy or the second signal energy to the first signal energy.

[0253] After receiving the second message, the network device obtains the ratio information of the first signal energy and the second signal energy included in the second message, and determines the relationship between the ratio of the first signal energy and the second signal energy and a preset threshold.

[0254] If the ratio of the first signal energy to the second signal energy is greater than a preset threshold, it indicates that the beam polarization direction corresponding to the second signal energy is an infeasible beam polarization direction; if the ratio of the first signal energy to the second signal energy is less than a preset threshold, it indicates that the beam polarization direction corresponding to the second signal energy is a feasible beam polarization direction.

[0255] The network device obtains a feasible beam polarization direction based on the relationship between the ratio of the first signal energy and the second signal energy and a preset threshold, thereby configuring a feasible beam polarization direction for the antenna port.

[0256] For example, the network device obtains a feasible downlink beam polarization direction based on the ratio of the first signal energy and the second signal energy of the transmitted CSI-RS signal fed back by the CSI, and then configures a feasible downlink beam polarization direction for each DMRS port corresponding to the PDSCH.

[0257] The beam polarization direction determination method provided in this application allows network devices to configure the antenna port type and beam polarization direction by receiving information on the ratio of signal energy corresponding to different polarization directions to signal energy corresponding to the same polarization direction.

[0258] In some embodiments, receiving a second message sent by the terminal includes:

[0259] A fourth message is sent to the terminal, the fourth message containing the uplink channel measurement signal port number and the beam polarization direction corresponding to the uplink channel measurement signal port number;

[0260] The second message is sent by the receiving terminal based on the uplink channel measurement signal port number and the beam polarization direction corresponding to the uplink channel measurement signal port number.

[0261] Specifically, when the second message is an uplink channel measurement message, the uplink channel measurement message can be an SRS signal.

[0262] The specific process by which network devices receive uplink channel measurement messages sent by terminals is as follows:

[0263] Network devices associate an uplink channel measurement signal port number with each uplink beam polarization direction they support. The uplink channel measurement signal port number can be an SRS port number.

[0264] After the network device completes the association between the uplink beam polarization direction and the uplink channel measurement signal port number, the network device sends a fourth message to the terminal. The fourth message contains the uplink channel measurement signal port number and the beam polarization direction corresponding to the uplink channel measurement signal port number.

[0265] After both the terminal and the network device acquire the uplink channel measurement signal port number and the beam polarization direction corresponding to the uplink channel measurement signal port number, the network device receives the uplink channel measurement message sent by the terminal using the uplink channel measurement signal port number and its corresponding beam polarization direction.

[0266] The network device obtains the feasible uplink beam polarization direction based on the uplink channel measurement message, then configures the feasible uplink beam polarization direction for the antenna port type, and notifies the terminal of the configuration status.

[0267] For example, the network device obtains a feasible uplink beam polarization direction based on the SRS signal, then configures a feasible uplink beam polarization direction for each DMRS port corresponding to the PUSCH, and notifies the terminal of the uplink configuration of the DMRS port.

[0268] The beam polarization direction determination method provided in this application involves a network device sending an uplink channel measurement signal port number and its corresponding beam polarization direction to a terminal, receiving an uplink channel measurement message sent by the terminal using the uplink channel measurement signal port number and its corresponding beam polarization direction, and configuring the antenna port type and beam polarization direction based on the received uplink channel measurement message.

[0269] In some embodiments, after a preset condition is met, the uplink beam polarization direction corresponding to the default antenna port type of the network device is the same as the downlink beam polarization direction.

[0270] The preset conditions could be that the network device fails to configure the beam polarization direction for the uplink channel measurement signal port number within a preset time, or that the network device fails to receive the uplink channel measurement message sent by the terminal within a preset time.

[0271] For example, after the network device obtains the beam polarization direction associated with the DMRS port corresponding to the PDSCH, if the network device does not configure the beam polarization direction of the SRS port within a preset time, the network device defaults to the same beam polarization direction associated with the DMRS port corresponding to the PUSCH as the DMRS port corresponding to the PDSCH.

[0272] For example, after the network device obtains the beam polarization direction associated with the DMRS port corresponding to the PDSCH, the network device configures the beam polarization direction of the SRS port and sends the beam polarization direction configuration of the SRS port to the terminal. However, if the network device does not receive the SRS signal sent by the terminal within a preset time, the network device defaults to the same beam polarization direction associated with the DMRS port corresponding to the PUSCH and the beam polarization direction associated with the DMRS port corresponding to the PDSCH.

[0273] The beam polarization direction determination method provided in this application simplifies the process of configuring the beam polarization direction of the antenna port type by using the same method as the downlink beam polarization direction after obtaining the downlink beam polarization direction corresponding to the antenna port type.

[0274] In some embodiments, the method further includes:

[0275] Multiple data streams can be transmitted simultaneously using ports corresponding to multiple beam polarization directions.

[0276] Specifically, network devices will use different transmission methods depending on the different transmission capabilities of the terminals.

[0277] When transmitting data, if the terminal can simultaneously receive or send beams with multiple beam polarization directions, then during downlink transmission, the network device can simultaneously send multiple data streams using ports corresponding to multiple beam polarization directions, and during uplink transmission, the network device can simultaneously receive multiple data streams using ports corresponding to multiple beam polarization directions.

[0278] For example, when multiple streams of downlink transmission are constructed from beams with multiple beam polarization directions, the network device indicates to the terminal the various beam polarization directions used in this downlink transmission through the DMRS port indication in the DCI information.

[0279] If the terminal can simultaneously receive beams from all beam polarization directions used in this transmission, the network device will simultaneously send downlink data using the DMRS ports corresponding to each beam polarization direction.

[0280] The beam polarization direction determination method provided in this application embodiment enables network devices to simultaneously transmit multiple data streams by utilizing ports corresponding to multiple beam polarization directions, thereby achieving multi-stream transmission.

[0281] In some embodiments, the method further includes:

[0282] A data stream can be transmitted alternately using ports corresponding to multiple beam polarization directions in a time-division multiplexing manner, or a data stream can be transmitted using a port corresponding to one beam polarization direction.

[0283] Specifically, during data transmission, if the terminal can only receive or send a beam in one beam polarization direction at any given time, then during downlink transmission, the network device uses time-division multiplexing to alternately send a data stream using ports corresponding to multiple beam polarization directions, or uses a port corresponding to one beam polarization direction to send a data stream; during uplink transmission, the network device uses time-division multiplexing to alternately receive a data stream using ports corresponding to multiple beam polarization directions, or uses a port corresponding to one beam polarization direction to receive a data stream.

[0284] For example, when a single-stream downlink transmission is constructed using beams with multiple beam polarization directions, the network device indicates to the terminal the various beam polarization directions used in this downlink transmission through the DMRS port indication in the DCI information.

[0285] If the terminal cannot simultaneously receive all beam polarization directions used in this transmission, or can only receive one beam polarization direction at a time, then all beam polarization directions used in this transmission will be time-division multiplexed to send downlink data sequentially using different polarization directions (port numbers from low to high).

[0286] The DCI information will specify all DMRS ports used in this transmission, their corresponding beam polarization directions, and the time-frequency resources used when transmitting using the beam polarization direction corresponding to the first DMRS port. Subsequent DMRS ports will use the same time-frequency resources for data transmission in the next time slot after the data transmission in the beam polarization direction corresponding to the previous DMRS port has finished.

[0287] The beam polarization direction determination method provided in this application embodiment enables network devices to alternately send a data stream using multiple ports corresponding to beam polarization directions in a time-division multiplexing manner, or to transmit a data stream using a port corresponding to one beam polarization direction, thereby achieving single-stream transmission.

[0288] In some embodiments, the method further includes:

[0289] Transmit broadcast beams and data beams with the same or different polarization directions.

[0290] Specifically, network devices use broadcast beams and data beams for transmission. The broadcast beams transmit system information and initial access information, while the data beams are responsible for transmitting data signals.

[0291] Network devices can configure the polarization direction of broadcast beams and data beams independently. Network devices can send broadcast beams and data beams with the same polarization direction, and network devices can also send broadcast beams and data beams with different polarization directions.

[0292] The beam polarization direction determination method provided in this application embodiment allows network devices to independently configure the polarization direction of broadcast beams and data beams.

[0293] Figure 5 This is a schematic diagram of the terminal structure provided in the embodiments of this application, such as... Figure 5 As shown, the terminal includes a memory 520, a transceiver 500, and a processor 510, wherein:

[0294] The memory 520 is used to store computer programs; the transceiver 500 is used to send and receive data under the control of the processor 510; the processor 510 is used to read the computer program in the memory 520 and perform the following operations:

[0295] Receive indication information sent by the network device; the indication information is used to indicate the antenna port type and antenna port number;

[0296] Based on the antenna port type indicated by the indication information and the correlation between the antenna port type and the beam polarization direction, the beam polarization direction corresponding to the antenna port number is determined.

[0297] Specifically, transceiver 500 is used to receive and send data under the control of processor 510.

[0298] Among them, Figure 5In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 510 and memory represented by memory 520 together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 500 can be multiple components, including transmitters and receivers, providing a unit for communicating with various other devices over a transmission medium, including wireless channels, wired channels, optical fibers, etc. For different user equipment, the user interface 530 can also be an interface capable of connecting external or internal devices, including but not limited to keypads, displays, speakers, microphones, joysticks, etc.

[0299] The processor 510 is responsible for managing the bus architecture and general processing, while the memory 520 can store the data used by the processor 510 when performing operations.

[0300] Optionally, the processor 510 can be a CPU (Central Processing Unit), ASIC (Application Specific Integrated Circuit), FPGA (Field-Programmable Gate Array), or CPLD (Complex Programmable Logic Device), and the processor can also adopt a multi-core architecture.

[0301] The processor executes any of the methods described in the embodiments of this application according to the obtained executable instructions by calling a computer program stored in memory. The processor and memory may also be physically separated.

[0302] In some embodiments, before determining the beam polarization direction corresponding to the antenna port number, the method further includes:

[0303] Obtain the correlation between antenna port type and beam polarization direction; the correlation between antenna port type and beam polarization direction is a preset correlation.

[0304] In some embodiments, before determining the beam polarization direction corresponding to the antenna port number, the method further includes:

[0305] Receive a first message sent by the network device; the first message contains the association between the antenna port type and the beam polarization direction.

[0306] In some embodiments, before receiving the first message sent by the network device, the method further includes:

[0307] Send a second message to the network device; the second message is used to assist in configuring the association between the antenna port type and the beam polarization direction.

[0308] In some embodiments, the second message includes the beam polarization direction supported by the terminal.

[0309] In some embodiments, before sending the second message to the network device, the method further includes:

[0310] The network device receives a third message, which includes a downlink channel measurement signal port number and a beam polarization direction corresponding to the downlink channel measurement signal port number.

[0311] The downlink channel measurement signal is received by the network device based on the downlink channel measurement signal port number and the beam polarization direction corresponding to the downlink channel measurement signal port number.

[0312] In some embodiments, the second message further includes information on the ratio of the first signal energy to the second signal energy; the first signal energy is the signal energy when the terminal receives the signal using a beam polarization direction different from that of the network device; the second signal energy is the signal energy when the terminal receives the signal using the same beam polarization direction as the network device.

[0313] In some embodiments, sending the second message to the network device includes:

[0314] The network device receives a fourth message, which includes an uplink channel measurement signal port number and a beam polarization direction corresponding to the uplink channel measurement signal port number.

[0315] The second message is sent to the network device based on the uplink channel measurement signal port number and the beam polarization direction corresponding to the uplink channel measurement signal port number.

[0316] In some embodiments, the method further includes:

[0317] Multiple data streams can be transmitted simultaneously using ports corresponding to multiple beam polarization directions.

[0318] In some embodiments, the method further includes:

[0319] A data stream can be transmitted alternately using ports corresponding to multiple beam polarization directions in a time-division multiplexing manner, or a data stream can be transmitted using a port corresponding to one beam polarization direction.

[0320] In some embodiments, the method further includes:

[0321] Receives a broadcast beam with a polarization direction;

[0322] It can receive data beams with the same or different polarization directions.

[0323] It should be noted that the terminal provided in this embodiment of the invention can implement all the method steps implemented by the method embodiment with the terminal as the execution subject, and can achieve the same technical effect. Here, the parts that are the same as those in the method embodiment and the beneficial effects will not be described in detail.

[0324] Figure 6 This is a schematic diagram of the network device provided in the embodiments of this application, such as... Figure 6 As shown, the network device includes a memory 620, a transceiver 600, and a processor 610, wherein:

[0325] The memory 620 is used to store computer programs; the transceiver 600 is used to send and receive data under the control of the processor 610; the processor 610 is used to read the computer program in the memory 620 and perform the following operations:

[0326] Send indication information to the terminal; the indication information is used to indicate the antenna port type and antenna port number; the antenna port type is used to determine the beam polarization direction corresponding to the antenna port number based on the correlation between the antenna port type and the beam polarization direction.

[0327] Specifically, transceiver 600 is used to receive and send data under the control of processor 610.

[0328] Among them, Figure 6 In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits together, represented by one or more processors (processor 610) and memory (memory 620). The bus architecture can also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 600 can be multiple elements, including transmitters and receivers, providing units for communicating with various other devices over transmission media, including wireless channels, wired channels, optical fibers, etc. The processor 610 is responsible for managing the bus architecture and general processing, and the memory 620 can store data used by the processor 610 during operation.

[0329] The processor 610 can be a central processing unit (CPU), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor can also adopt a multi-core architecture.

[0330] In some embodiments, before sending the indication information to the terminal, the method further includes:

[0331] Obtain the correlation between antenna port type and beam polarization direction; the correlation between antenna port type and beam polarization direction is a preset correlation.

[0332] In some embodiments, before sending the indication information to the terminal, the method further includes:

[0333] Send a first message to the terminal; the first message contains the association between the antenna port type and the beam polarization direction.

[0334] In some embodiments, before sending the first message to the terminal, the method further includes:

[0335] Receive the second message sent by the terminal;

[0336] Configure the association between antenna port type and beam polarization direction based on the second message.

[0337] In some embodiments, the second message includes the beam polarization direction supported by the terminal.

[0338] In some embodiments, before receiving the second message sent by the terminal, the method further includes:

[0339] A third message is sent to the terminal, the third message containing the downlink channel measurement signal port number and the beam polarization direction corresponding to the downlink channel measurement signal port number;

[0340] Based on the downlink channel measurement signal port number and the beam polarization direction corresponding to the downlink channel measurement signal port number, the downlink channel measurement signal is sent to the terminal.

[0341] In some embodiments, the second message further includes information about the ratio of a first signal energy to a second signal energy; the first signal energy is the signal energy when the terminal receives a signal using a beam polarization direction different from that of the network device; the second signal energy is the signal energy when the terminal receives a signal using the same beam polarization direction as the network device. In some embodiments, receiving the second message sent by the terminal includes:

[0342] A fourth message is sent to the terminal, the fourth message containing the uplink channel measurement signal port number and the beam polarization direction corresponding to the uplink channel measurement signal port number;

[0343] The second message is sent by the receiving terminal based on the uplink channel measurement signal port number and the beam polarization direction corresponding to the uplink channel measurement signal port number.

[0344] In some embodiments, the method further includes:

[0345] Multiple data streams can be transmitted simultaneously using ports corresponding to multiple beam polarization directions.

[0346] In some embodiments, the method further includes:

[0347] A data stream can be transmitted alternately using ports corresponding to multiple beam polarization directions in a time-division multiplexing manner, or a data stream can be transmitted using a port corresponding to one beam polarization direction.

[0348] In some embodiments, the method further includes:

[0349] Transmit broadcast beams and data beams with the same or different polarization directions.

[0350] It should be noted that the network device provided in this application embodiment can implement all the method steps implemented by the method embodiment with the network device as the execution subject, and can achieve the same technical effect. Here, the parts that are the same as those in the method embodiment and the beneficial effects will not be described in detail.

[0351] Figure 7 This is one of the structural schematic diagrams of the beam polarization direction determination device provided in the embodiments of this application, such as... Figure 7 As shown in the figure, this application embodiment also provides a beam polarization direction determination device, including a first receiving module 701 and a determining module 702, wherein:

[0352] The first receiving module 701 is used to receive indication information sent by the network device; the indication information is used to indicate the antenna port type and antenna port number.

[0353] The determination module 702 is used to determine the beam polarization direction corresponding to the antenna port number based on the antenna port type indicated by the indication information and the correlation between the antenna port type and the beam polarization direction.

[0354] In some embodiments, the apparatus includes a first acquisition module, which is configured to acquire the association between the antenna port type and the beam polarization direction before determining the beam polarization direction corresponding to the antenna port number; the association between the antenna port type and the beam polarization direction is a preset association.

[0355] In some embodiments, the apparatus includes a second receiving module, which is configured to receive a first message sent by the network device before determining the beam polarization direction corresponding to the antenna port number; the first message contains the association between the antenna port type and the beam polarization direction.

[0356] In some embodiments, the apparatus further includes a second transmitting module, which is configured to transmit a second message to the network device before receiving the first message transmitted by the network device; the second message is used to assist in configuring the association between the antenna port type and the beam polarization direction.

[0357] In some embodiments, the second message includes the beam polarization direction supported by the terminal.

[0358] In some embodiments, the apparatus further includes a third receiving module and a third transmitting module, wherein:

[0359] The third receiving module is configured to receive a third message sent by the network device before sending the second message to the network device. The third message includes a downlink channel measurement signal port number and a beam polarization direction corresponding to the downlink channel measurement signal port number.

[0360] The third transmitting module is used to receive the downlink channel measurement signal transmitted by the network device based on the downlink channel measurement signal port number and the beam polarization direction corresponding to the downlink channel measurement signal port number.

[0361] In some embodiments, the second message further includes information on the ratio of the first signal energy to the second signal energy; the first signal energy is the signal energy when the terminal receives the signal using a beam polarization direction different from that of the network device; the second signal energy is the signal energy when the terminal receives the signal using the same beam polarization direction as the network device.

[0362] In some embodiments, the second transmitting module is further configured to receive a fourth message sent by the network device, the fourth message including an uplink channel measurement signal port number and a beam polarization direction corresponding to the uplink channel measurement signal port number;

[0363] The second message is sent to the network device based on the uplink channel measurement signal port number and the beam polarization direction corresponding to the uplink channel measurement signal port number.

[0364] In some embodiments, the apparatus further includes a first transmission module, which is configured to simultaneously transmit multiple data streams using ports corresponding to multiple beam polarization directions.

[0365] In some embodiments, the apparatus further includes a second transmission module, which is configured to transmit a data stream alternately using ports corresponding to multiple beam polarization directions in a time-division multiplexing manner, or to transmit a data stream using a port corresponding to one beam polarization direction.

[0366] In some embodiments, the apparatus further includes a fourth receiving module, which is used to receive a broadcast beam with one polarization direction and to receive data beams with the same or different polarization directions.

[0367] It should be noted that the beam polarization direction determination device provided in this application embodiment can implement all the method steps implemented by the method embodiment with the execution subject as the terminal, and can achieve the same technical effect. Here, the parts that are the same as those in the method embodiment and the beneficial effects will not be described in detail.

[0368] Figure 8 This is a second schematic diagram of the beam polarization direction determination device provided in the embodiments of this application, as shown below. Figure 8 As shown, this application embodiment also provides a beam polarization direction determination device, including: a first transmitting module 801;

[0369] The first transmitting module 801 is used to send indication information to the terminal; the indication information is used to indicate the antenna port type and the antenna port number; the antenna port type is used to determine the beam polarization direction corresponding to the antenna port number based on the correlation between the antenna port type and the beam polarization direction.

[0370] In some embodiments, the device further includes a second acquisition module, which is configured to acquire the association between antenna port type and beam polarization direction before sending indication information to the terminal; the association between antenna port type and beam polarization direction is a preset association.

[0371] In some embodiments, the apparatus further includes a fourth transmitting module, which is configured to transmit a first message to the terminal before transmitting the indication information to the terminal; the first message contains the association between the antenna port type and the beam polarization direction.

[0372] In some embodiments, the apparatus further includes a fifth receiving module and a configuration module, wherein:

[0373] The fifth receiving module is used to receive the second message sent by the terminal before sending the first message to the terminal;

[0374] The configuration module is used to configure the association between the antenna port type and the beam polarization direction based on the second message.

[0375] In some embodiments, the second message includes the beam polarization direction supported by the terminal.

[0376] In some embodiments, the apparatus further includes a fifth transmitting module and a sixth transmitting module; wherein:

[0377] The fifth sending module is used to send a third message to the terminal before receiving the second message sent by the terminal. The third message includes a downlink channel measurement signal port number and a beam polarization direction corresponding to the downlink channel measurement signal port number.

[0378] The sixth transmitting module is used to transmit a downlink channel measurement signal to the terminal based on the downlink channel measurement signal port number and the beam polarization direction corresponding to the downlink channel measurement signal port number.

[0379] In some embodiments, the second message further includes information on the ratio of the first signal energy to the second signal energy; the first signal energy is the signal energy when the terminal receives the signal using a beam polarization direction different from that of the network device; the second signal energy is the signal energy when the terminal receives the signal using the same beam polarization direction as the network device.

[0380] In some embodiments, the fifth receiving module is further configured to send a fourth message to the terminal, the fourth message including an uplink channel measurement signal port number and a beam polarization direction corresponding to the uplink channel measurement signal port number;

[0381] The second message is sent by the receiving terminal based on the uplink channel measurement signal port number and the beam polarization direction corresponding to the uplink channel measurement signal port number.

[0382] In some embodiments, the apparatus further includes a third transmission module, which is configured to simultaneously transmit multiple data streams using ports corresponding to multiple beam polarization directions.

[0383] In some embodiments, the apparatus further includes a fourth transmission module, which is configured to transmit a data stream alternately using ports corresponding to multiple beam polarization directions in a time-division multiplexing manner, or to transmit a data stream using a port corresponding to one beam polarization direction.

[0384] In some embodiments, the apparatus further includes a seventh transmitting module, which is used to transmit broadcast beams and data beams with the same polarization direction or different polarization directions.

[0385] It should be noted that the beam polarization direction determination device provided in this application embodiment can implement all the method steps implemented by the above-mentioned method embodiment with network device as the execution subject, and can achieve the same technical effect. Here, the parts that are the same as those in the method embodiment and the beneficial effects will not be described in detail.

[0386] It should be noted that the division of units / modules in the embodiments of this application is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods. Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated units described above can be implemented in hardware or as software functional units.

[0387] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0388] In some embodiments, a processor-readable storage medium is also provided, the processor-readable storage medium storing a computer program for causing the processor to perform the methods provided in the above embodiments, including:

[0389] Receive indication information sent by the network device; the indication information is used to indicate the antenna port type and antenna port number;

[0390] Based on the antenna port type indicated by the indication information and the correlation between the antenna port type and the beam polarization direction, the beam polarization direction corresponding to the antenna port number is determined.

[0391] Or include:

[0392] Send indication information to the terminal; the indication information is used to indicate the antenna port type and antenna port number; the antenna port type is used to determine the beam polarization direction corresponding to the antenna port number based on the correlation between the antenna port type and the beam polarization direction.

[0393] It should be noted that the processor-readable storage medium can be any available medium or data storage device that the processor can access, including but not limited to magnetic memory (e.g., floppy disk, hard disk, magnetic tape, magneto-optical disk (MO)), optical memory (e.g., CD, DVD, BD, HVD), and semiconductor memory (e.g., ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)).

[0394] It should also be noted that the terms "first," "second," etc., used in the embodiments of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, and the number of objects is not limited. For example, the first object can be one or more.

[0395] In the embodiments of this application, the term "and / or" describes the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following associated objects have an "or" relationship.

[0396] In the embodiments of this application, the term "multiple" refers to two or more, and other quantifiers are similar.

[0397] In this application, "determining B based on A" means that factor A must be considered when determining B. It is not limited to "B can be determined based solely on A," but should also include: "determining B based on A and C," "determining B based on A, C, and E," "determining C based on A, and further determining B based on C," etc. It can also include using A as a condition for determining B, for example, "when A satisfies the first condition, B is determined using the first method"; or "when A satisfies the second condition, B is determined," or "when A satisfies the third condition, B is determined based on the first parameter," etc. Of course, it can also be a condition where A is a factor in determining B, for example, "when A satisfies the first condition, C is determined using the first method, and B is further determined based on C," etc.

[0398] The technical solutions provided in this application can be applied to various systems, especially 5G systems. For example, applicable systems include Global System for Mobile Communication (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS), Long Term Evolution (LTE), LTE Frequency Division Duplex (FDD), LTE Time Division Duplex (TDD), Long Term Evolution Advanced (LTE-A), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX), and 5G New Radio (NR). All of these systems include terminal equipment and network equipment. The systems may also include a core network component, such as Evolved Packet System (EPS) and 5G system (5GS).

[0399] The terminal devices involved in the embodiments of this application can be devices that provide voice and / or data connectivity to users, handheld devices with wireless connectivity, or other processing devices connected to a wireless modem. The names of the terminal devices may differ in different systems; for example, in a 5G system, a terminal device can be called User Equipment (UE). Wireless terminal devices can communicate with one or more core networks (CNs) via a Radio Access Network (RAN). Wireless terminal devices can be mobile terminal devices, such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, for example, portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile devices that exchange voice and / or data with the RAN. Examples include Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). Wireless terminal equipment can also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point, remote terminal, access terminal, user terminal, user agent, or user device, but is not limited to these terms in the embodiments of this application.

[0400] The network device involved in this application embodiment can be a base station, which may include multiple cells providing services to terminals. Depending on the specific application, a base station may also be called an access point, or a device in an access network that communicates with a wireless terminal device through one or more sectors on the air interface, or other names. The network device can be used to exchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, where the rest of the access network may include an Internet Protocol (IP) communication network. The network device can also coordinate the attribute management of the air interface. For example, the network equipment involved in the embodiments of this application can be a base transceiver station (BTS) in a Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), a NodeB in a Wide-band Code Division Multiple Access (WCDMA) system, an evolved Node B (eNB or e-NodeB) in a long term evolution (LTE) system, a 5G base station (gNB) in a next generation system, a Home evolved Node B (HeNB), a relay node, a femto, a pico, etc., and is not limited in the embodiments of this application. In some network structures, the network equipment may include centralized unit (CU) nodes and distributed unit (DU) nodes, and the centralized unit and distributed unit may be geographically separated.

[0401] Network devices and terminal devices can each use one or more antennas for multiple-input multiple-output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multiple-user MIMO (MU-MIMO). Depending on the configuration and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, and can also be diversity transmission, precoding transmission, or beamforming transmission, etc.

[0402] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage and optical storage) containing computer-usable program code.

[0403] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0404] These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0405] These processors can execute instructions that can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable device for implementing the process. Figure 1One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0406] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A method for determining beam polarization direction, characterized in that, Applied to terminals, including: Receive indication information sent by the network device; the indication information is used to indicate the antenna port type and antenna port number; Based on the antenna port type indicated by the indication information and the correlation between the antenna port type and the beam polarization direction, the beam polarization direction corresponding to the antenna port number is determined. Before determining the beam polarization direction corresponding to the antenna port number, the method further includes: Receive a first message sent by the network device; the first message contains the association between the antenna port type and the beam polarization direction.

2. The beam polarization direction determination method according to claim 1, characterized in that, Before determining the beam polarization direction corresponding to the antenna port number, the method further includes: Obtain the correlation between antenna port type and beam polarization direction; the correlation between antenna port type and beam polarization direction is a preset correlation.

3. The beam polarization direction determination method according to claim 1, characterized in that, Before receiving the first message sent by the network device, the method further includes: Send a second message to the network device; the second message is used to assist in configuring the association between the antenna port type and the beam polarization direction.

4. The beam polarization direction determination method according to claim 3, characterized in that, The second message contains the beam polarization direction supported by the terminal.

5. The beam polarization direction determination method according to claim 3, characterized in that, Before sending the second message to the network device, the method further includes: The network device receives a third message, which includes a downlink channel measurement signal port number and a beam polarization direction corresponding to the downlink channel measurement signal port number. The downlink channel measurement signal is received by the network device based on the downlink channel measurement signal port number and the beam polarization direction corresponding to the downlink channel measurement signal port number.

6. The beam polarization direction determination method according to claim 3, characterized in that, The second message also includes information on the ratio of the first signal energy to the second signal energy; the first signal energy is the signal energy when the terminal receives the signal using a beam polarization direction different from that of the network device; the second signal energy is the signal energy when the terminal receives the signal using the same beam polarization direction as the network device.

7. The beam polarization direction determination method according to claim 3, characterized in that, Sending the second message to the network device includes: The network device receives a fourth message, which includes an uplink channel measurement signal port number and a beam polarization direction corresponding to the uplink channel measurement signal port number. The second message is sent to the network device based on the uplink channel measurement signal port number and the beam polarization direction corresponding to the uplink channel measurement signal port number.

8. The beam polarization direction determination method according to claim 1, characterized in that, The method further includes: Multiple data streams can be transmitted simultaneously using ports corresponding to multiple beam polarization directions.

9. The beam polarization direction determination method according to claim 1, characterized in that, The method further includes: A data stream can be transmitted alternately using ports corresponding to multiple beam polarization directions in a time-division multiplexing manner, or a data stream can be transmitted using a port corresponding to one beam polarization direction.

10. The beam polarization direction determination method according to claim 1, characterized in that, The method further includes: Receives a broadcast beam with a polarization direction; It can receive data beams with the same or different polarization directions.

11. A method for determining beam polarization direction, characterized in that, Applied to network devices, including: Send indication information to the terminal; the indication information is used to indicate the antenna port type and antenna port number; the antenna port type is used to determine the beam polarization direction corresponding to the antenna port number based on the correlation between the antenna port type and the beam polarization direction; Before sending the instruction information to the terminal, the method further includes: Send a first message to the terminal; the first message contains the association between the antenna port type and the beam polarization direction.

12. The beam polarization direction determination method according to claim 11, characterized in that, Before sending the instruction information to the terminal, the method further includes: Obtain the correlation between antenna port type and beam polarization direction; the correlation between antenna port type and beam polarization direction is a preset correlation.

13. The beam polarization direction determination method according to claim 11, characterized in that, Before sending the first message to the terminal, the method further includes: Receive the second message sent by the terminal; Configure the association between antenna port type and beam polarization direction based on the second message.

14. The beam polarization direction determination method according to claim 13, characterized in that, The second message contains the beam polarization direction supported by the terminal.

15. The beam polarization direction determination method according to claim 13, characterized in that, Before receiving the second message sent by the terminal, the method further includes: A third message is sent to the terminal, the third message containing the downlink channel measurement signal port number and the beam polarization direction corresponding to the downlink channel measurement signal port number; Based on the downlink channel measurement signal port number and the beam polarization direction corresponding to the downlink channel measurement signal port number, the downlink channel measurement signal is sent to the terminal.

16. The beam polarization direction determination method according to claim 13, characterized in that, The second message also includes information on the ratio of the first signal energy to the second signal energy; the first signal energy is the signal energy when the terminal receives the signal using a beam polarization direction different from that of the network device; the second signal energy is the signal energy when the terminal receives the signal using the same beam polarization direction as the network device.

17. The beam polarization direction determination method according to claim 13, characterized in that, The second message sent by the terminal includes: A fourth message is sent to the terminal, the fourth message containing the uplink channel measurement signal port number and the beam polarization direction corresponding to the uplink channel measurement signal port number; The second message is sent by the receiving terminal based on the uplink channel measurement signal port number and the beam polarization direction corresponding to the uplink channel measurement signal port number.

18. The beam polarization direction determination method according to claim 12, characterized in that, The method further includes: Multiple data streams can be transmitted simultaneously using ports corresponding to multiple beam polarization directions.

19. The beam polarization direction determination method according to claim 12, characterized in that, The method further includes: A data stream can be transmitted alternately using ports corresponding to multiple beam polarization directions in a time-division multiplexing manner, or a data stream can be transmitted using a port corresponding to one beam polarization direction.

20. The beam polarization direction determination method according to claim 12, characterized in that, The method further includes: Transmit broadcast beams and data beams with the same or different polarization directions.

21. A terminal, characterized in that, Includes memory, transceiver, and processor: A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations: Receive indication information sent by the network device; the indication information is used to indicate the antenna port type and antenna port number; Based on the antenna port type indicated by the indication information and the correlation between the antenna port type and the beam polarization direction, the beam polarization direction corresponding to the antenna port number is determined. Before determining the beam polarization direction corresponding to the antenna port number, the method further includes: Receive the first message sent by the network device; The first message contains the association between the antenna port type and the beam polarization direction.

22. The terminal according to claim 21, characterized in that, Before determining the beam polarization direction corresponding to the antenna port number, the method further includes: Obtain the correlation between antenna port type and beam polarization direction; the correlation between antenna port type and beam polarization direction is a preset correlation.

23. The terminal according to claim 21, characterized in that, Before receiving the first message sent by the network device, the method further includes: Send a second message to the network device; the second message is used to assist in configuring the association between the antenna port type and the beam polarization direction.

24. The terminal according to claim 23, characterized in that, The second message contains the beam polarization direction supported by the terminal.

25. The terminal according to claim 23, characterized in that, Before sending the second message to the network device, the method further includes: The network device receives a third message, which includes a downlink channel measurement signal port number and a beam polarization direction corresponding to the downlink channel measurement signal port number. The downlink channel measurement signal is received by the network device based on the downlink channel measurement signal port number and the beam polarization direction corresponding to the downlink channel measurement signal port number.

26. The terminal according to claim 23, characterized in that, The second message also includes information on the ratio of the first signal energy to the second signal energy; the first signal energy is the signal energy when the terminal receives the signal using a beam polarization direction different from that of the network device; the second signal energy is the signal energy when the terminal receives the signal using the same beam polarization direction as the network device.

27. The terminal according to claim 23, characterized in that, Sending the second message to the network device includes: The network device receives a fourth message, which includes an uplink channel measurement signal port number and a beam polarization direction corresponding to the uplink channel measurement signal port number. The second message is sent to the network device based on the uplink channel measurement signal port number and the beam polarization direction corresponding to the uplink channel measurement signal port number.

28. The terminal according to claim 21, characterized in that, The operation also includes: Multiple data streams can be transmitted simultaneously using ports corresponding to multiple beam polarization directions.

29. The terminal according to claim 21, characterized in that, The operation also includes: A data stream can be transmitted alternately using ports corresponding to multiple beam polarization directions in a time-division multiplexing manner, or a data stream can be transmitted using a port corresponding to one beam polarization direction.

30. The terminal according to claim 21, characterized in that, The operation also includes: Receives a broadcast beam with a polarization direction; It can receive data beams with the same or different polarization directions.

31. A network device, characterized in that, Includes memory, transceiver, and processor: A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations: Send indication information to the terminal; the indication information is used to indicate the antenna port type and antenna port number; the antenna port type is used to determine the beam polarization direction corresponding to the antenna port number based on the correlation between the antenna port type and the beam polarization direction; Before sending the instruction information to the terminal, the method further includes: Send a first message to the terminal; The first message contains the association between the antenna port type and the beam polarization direction.

32. The network device according to claim 31, characterized in that, Before sending the instruction information to the terminal, the method further includes: Obtain the correlation between antenna port type and beam polarization direction; the correlation between antenna port type and beam polarization direction is a preset correlation.

33. The network device according to claim 31, characterized in that, Before sending the first message to the terminal, the method further includes: Receive the second message sent by the terminal; Configure the association between antenna port type and beam polarization direction based on the second message.

34. The network device according to claim 33, characterized in that, The second message contains the beam polarization direction supported by the terminal.

35. The network device according to claim 33, characterized in that, Before receiving the second message sent by the terminal, the method further includes: A third message is sent to the terminal, the third message containing the downlink channel measurement signal port number and the beam polarization direction corresponding to the downlink channel measurement signal port number; Based on the downlink channel measurement signal port number and the beam polarization direction corresponding to the downlink channel measurement signal port number, the downlink channel measurement signal is sent to the terminal.

36. The network device according to claim 33, characterized in that, The second message also includes information on the ratio of the first signal energy to the second signal energy; the first signal energy is the signal energy when the terminal receives the signal using a beam polarization direction different from that of the network device; the second signal energy is the signal energy when the terminal receives the signal using the same beam polarization direction as the network device.

37. The network device according to claim 33, characterized in that, The second message sent by the terminal includes: A fourth message is sent to the terminal, the fourth message containing the uplink channel measurement signal port number and the beam polarization direction corresponding to the uplink channel measurement signal port number; The second message is sent by the receiving terminal based on the uplink channel measurement signal port number and the beam polarization direction corresponding to the uplink channel measurement signal port number.

38. The network device according to claim 32, characterized in that, The operation also includes: Multiple data streams can be transmitted simultaneously using ports corresponding to multiple beam polarization directions.

39. The network device according to claim 32, characterized in that, The operation also includes: A data stream can be transmitted alternately using ports corresponding to multiple beam polarization directions in a time-division multiplexing manner, or a data stream can be transmitted using a port corresponding to one beam polarization direction.

40. The network device according to claim 32, characterized in that, The operation also includes: Transmit broadcast beams and data beams with the same or different polarization directions.

41. A beam polarization direction determination device, characterized in that, include: The first receiving module is used to receive indication information sent by the network device; The indication information is used to indicate the antenna port type and antenna port number; The determination module is used to determine the beam polarization direction corresponding to the antenna port number based on the antenna port type indicated by the indication information and the correlation between the antenna port type and the beam polarization direction. The device includes a second receiving module, which is configured to receive a first message sent by the network device before determining the beam polarization direction corresponding to the antenna port number; the first message contains the association between the antenna port type and the beam polarization direction.

42. A beam polarization direction determination device, characterized in that, include: The first sending module is used to send indication information to the terminal; The indication information is used to indicate the antenna port type and antenna port number; The antenna port type is used to determine the beam polarization direction corresponding to the antenna port number based on the correlation between the antenna port type and the beam polarization direction. The device further includes a fourth transmitting module, which is used to send a first message to the terminal before sending the instruction information to the terminal; the first message contains the association between the antenna port type and the beam polarization direction.

43. A processor-readable storage medium, characterized in that, The processor-readable storage medium stores a computer program for causing the processor to perform the method of any one of claims 1 to 10, or to perform the method of any one of claims 10 to 20.

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