Signal configuration methods, devices, terminals and network-side equipment

Abstract

The application provides a signal configuration method and device, a terminal and a network side equipment, and relates to the technical field of communication. The method comprises the following steps: a first synchronization reference signal density corresponding to a cell is sent to a terminal; in the case that the first synchronization reference signal density does not meet the transmission requirement of the terminal, a synchronization reference signal density requirement sent by the terminal is received; and a second synchronization reference signal density is sent to the terminal based on the synchronization reference signal density requirement, and the second synchronization reference signal density is used for configuring the synchronization reference signal of the terminal. The embodiment of the application can improve the communication effect of the terminal.

Description

Technical Field

[0001] This invention relates to the field of communication technology, and in particular to a signal configuration method, apparatus, terminal, and network-side equipment. Background Technology

[0002] In traditional Multiple-Input Multiple-Output (MIMO) systems, symbol-level time-frequency synchronization is provided by a synchronization reference signal (such as a Tracking Reference Signal, TRS) during Radio Resource Control (RRC) connection. The TRS is a specially configured Channel State Information (CSI) Reference Signal (CSI-RS). Terminals continuously track and compensate for time and frequency deviations by measuring the TRS, thereby achieving time-frequency synchronization.

[0003] In related technologies, network-side equipment configures a fixed synchronization reference signal density for the terminal. This fixed synchronization reference signal density may not meet the terminal's transmission requirements, resulting in poor terminal communication performance. Summary of the Invention

[0004] This invention provides a signal configuration method, apparatus, terminal, and network-side device to solve the problem in related technologies where the network-side device configures a fixed synchronization reference signal density for the terminal, which may not meet the terminal's transmission requirements, resulting in poor terminal communication performance.

[0005] To solve the above-mentioned technical problems, the present invention is implemented as follows:

[0006] In a first aspect, embodiments of the present invention provide a signal configuration method, executed by a network-side device, the method comprising:

[0007] Send the first synchronization reference signal density corresponding to the cell to the terminal;

[0008] If the first synchronization reference signal density does not meet the transmission requirements of the terminal, the synchronization reference signal density requirement sent by the terminal is received.

[0009] Based on the required synchronization reference signal density, a second synchronization reference signal density is sent to the terminal, and the second synchronization reference signal density is used to configure the synchronization reference signal of the terminal.

[0010] Optionally, before sending the first synchronization reference signal density corresponding to the cell to the terminal, the method further includes:

[0011] The terminal receives a first indication message, which indicates whether the terminal supports reporting the synchronization reference signal density requirement when the first synchronization reference signal density does not meet the terminal's transmission requirements.

[0012] Optionally, the synchronization reference signal density requirement includes a third synchronization reference signal density;

[0013] Sending the second synchronization reference signal density to the terminal based on the synchronization reference signal density requirement includes:

[0014] The second synchronization reference signal density is sent to the terminal based on the third synchronization reference signal density.

[0015] Optionally, the method further includes:

[0016] Send a density comparison threshold to the terminal;

[0017] The density comparison threshold is used to determine whether the density of the first synchronization reference signal meets the transmission requirements of the terminal.

[0018] Optionally, after sending the first synchronization reference signal density corresponding to the cell to the terminal, the method further includes:

[0019] The terminal sends a second indication message, which indicates whether the first synchronization reference signal density meets the transmission requirements of the terminal.

[0020] Sending the second synchronization reference signal density to the terminal based on the synchronization reference signal density requirement includes:

[0021] If, based on the second indication information, it is determined that the first synchronization reference signal density does not meet the transmission requirements of the terminal, a second synchronization reference signal density is sent to the terminal based on the synchronization reference signal density requirement.

[0022] Optionally, the first synchronization reference signal density is characterized by a first synchronization reference signal distance, and / or the second synchronization reference signal density is characterized by a second synchronization reference signal distance, and / or the third synchronization reference signal density is characterized by a third synchronization reference signal distance.

[0023] Optionally, the first synchronization reference signal density is transmitted via Radio Resource Control (RRC) signaling; and / or, the second synchronization reference signal density is transmitted via Downlink Control Information (DCI) signaling.

[0024] Optionally, the second synchronization reference signal density is used to configure the synchronization reference signal of the terminal on the Type 1 Physical Downlink Shared Channel (PDSCH).

[0025] Secondly, embodiments of the present invention provide a signal configuration method, executed by a terminal, the method comprising:

[0026] Receive the first synchronization reference signal density corresponding to the cell sent by the network-side equipment;

[0027] If it is determined that the first synchronization reference signal density does not meet the transmission requirements of the terminal, a synchronization reference signal density requirement is sent to the network-side device.

[0028] The terminal receives a second synchronization reference signal density sent by the network-side device based on the synchronization reference signal density requirement. The second synchronization reference signal density is used to configure the synchronization reference signal of the terminal.

[0029] Optionally, before receiving the first synchronization reference signal density corresponding to the cell sent by the network-side device, the method further includes:

[0030] Send a first indication message to the network-side device. The first indication message is used to indicate whether the terminal supports reporting the synchronization reference signal density requirement when the first synchronization reference signal density does not meet the terminal's transmission requirements.

[0031] Optionally, after receiving the first synchronization reference signal density corresponding to the cell sent by the network-side device, the method further includes:

[0032] Determine the third synchronization reference signal density corresponding to the terminal, wherein the third synchronization reference signal density is the synchronization reference signal density that satisfies the transmission requirements of the terminal;

[0033] Based on the first synchronization reference signal density and the third synchronization reference signal density, determine whether the first synchronization reference signal density meets the transmission requirements of the terminal;

[0034] The synchronization reference signal density requirement includes the third synchronization reference signal density.

[0035] Optionally, the method further includes:

[0036] Receive the density comparison threshold sent by the network-side device;

[0037] The step of determining whether the first synchronization reference signal density meets the transmission requirements of the terminal based on the first synchronization reference signal density and the third synchronization reference signal density includes:

[0038] Determine density comparison parameters based on the first synchronization reference signal density and the third synchronization reference signal density;

[0039] Based on the density comparison parameters and the density comparison threshold, it is determined whether the density of the first synchronization reference signal meets the transmission requirements of the terminal.

[0040] Optionally, after receiving the first synchronization reference signal density corresponding to the cell sent by the network-side device, the method further includes:

[0041] Send a second indication message to the network-side device, the second indication message being used to indicate whether the first synchronization reference signal density meets the transmission requirements of the terminal.

[0042] Optionally, after sending the second indication information to the network-side device, the method further includes:

[0043] If it is determined that the first synchronization reference signal density meets the transmission requirements of the terminal, the synchronization reference signal of the terminal is configured based on the first synchronization reference signal density.

[0044] Thirdly, embodiments of the present invention provide a signal configuration device applied to a network-side device, the device comprising:

[0045] The first transmitting module is used to transmit the first synchronization reference signal density corresponding to the cell to the terminal;

[0046] The first receiving module is configured to receive the synchronization reference signal density requirement sent by the terminal when the first synchronization reference signal density does not meet the transmission requirements of the terminal.

[0047] The second transmitting module is used to transmit a second synchronization reference signal density to the terminal based on the synchronization reference signal density requirement, wherein the second synchronization reference signal density is used to configure the synchronization reference signal of the terminal.

[0048] Optionally, before sending the first synchronization reference signal density corresponding to the cell to the terminal, the device further includes:

[0049] The second receiving module is used to receive first indication information sent by the terminal. The first indication information is used to indicate whether the terminal supports reporting the synchronization reference signal density requirement when the first synchronization reference signal density does not meet the transmission requirements of the terminal.

[0050] Optionally, the synchronization reference signal density requirement includes a third synchronization reference signal density;

[0051] The second sending module is specifically used for:

[0052] The second synchronization reference signal density is sent to the terminal based on the third synchronization reference signal density.

[0053] Optionally, the device further includes:

[0054] The third sending module is used to send a density comparison threshold to the terminal;

[0055] The density comparison threshold is used to determine whether the density of the first synchronization reference signal meets the transmission requirements of the terminal.

[0056] Optionally, after sending the first synchronization reference signal density corresponding to the cell to the terminal, the device further includes:

[0057] The third receiving module is used to receive the second indication information sent by the terminal, the second indication information being used to indicate whether the density of the first synchronization reference signal meets the transmission requirements of the terminal;

[0058] The second sending module is specifically used for:

[0059] If, based on the second indication information, it is determined that the first synchronization reference signal density does not meet the transmission requirements of the terminal, a second synchronization reference signal density is sent to the terminal based on the synchronization reference signal density requirement.

[0060] Optionally, the first synchronization reference signal density is characterized by a first synchronization reference signal distance, and / or the second synchronization reference signal density is characterized by a second synchronization reference signal distance, and / or the third synchronization reference signal density is characterized by a third synchronization reference signal distance.

[0061] Optionally, the first synchronization reference signal density is transmitted via Radio Resource Control (RRC) signaling; and / or, the second synchronization reference signal density is transmitted via Downlink Control Information (DCI) signaling.

[0062] Optionally, the second synchronization reference signal density is used to configure the synchronization reference signal of the terminal on the Type 1 Physical Downlink Shared Channel (PDSCH).

[0063] Fourthly, embodiments of the present invention provide a signal configuration device applied to a terminal, the device comprising:

[0064] The first receiving module is used to receive the first synchronization reference signal density corresponding to the cell sent by the network-side equipment;

[0065] The first transmitting module is configured to transmit a synchronization reference signal density requirement to the network-side device when it is determined that the first synchronization reference signal density does not meet the transmission requirements of the terminal.

[0066] The second receiving module is used to receive a second synchronization reference signal density sent by the network-side device based on the synchronization reference signal density requirement, wherein the second synchronization reference signal density is used to configure the synchronization reference signal of the terminal.

[0067] Optionally, before receiving the first synchronization reference signal density corresponding to the cell sent by the network-side device, the apparatus further includes:

[0068] The second sending module is used to send first indication information to the network-side device. The first indication information is used to indicate whether the terminal supports reporting the synchronization reference signal density requirement when the first synchronization reference signal density does not meet the terminal's transmission requirements.

[0069] Optionally, after receiving the first synchronization reference signal density corresponding to the cell sent by the network-side device, the apparatus further includes:

[0070] The first determining module is used to determine the third synchronization reference signal density corresponding to the terminal, wherein the third synchronization reference signal density is a synchronization reference signal density that meets the transmission requirements of the terminal.

[0071] The second determining module is used to determine whether the first synchronization reference signal density meets the transmission requirements of the terminal based on the first synchronization reference signal density and the third synchronization reference signal density.

[0072] The synchronization reference signal density requirement includes the third synchronization reference signal density.

[0073] Optionally, the device further includes:

[0074] The third receiving module is used to receive the density comparison threshold sent by the network-side device;

[0075] The second determining module is specifically used for:

[0076] Determine density comparison parameters based on the first synchronization reference signal density and the third synchronization reference signal density;

[0077] Based on the density comparison parameters and the density comparison threshold, it is determined whether the density of the first synchronization reference signal meets the transmission requirements of the terminal.

[0078] Optionally, after receiving the first synchronization reference signal density corresponding to the cell sent by the network-side device, the apparatus further includes:

[0079] The third sending module is used to send second indication information to the network-side device, the second indication information being used to indicate whether the first synchronization reference signal density meets the transmission requirements of the terminal.

[0080] Optionally, after sending the second indication information to the network-side device, the apparatus further includes:

[0081] The configuration module is used to configure the synchronization reference signal of the terminal based on the first synchronization reference signal density, provided that the first synchronization reference signal density satisfies the transmission requirements of the terminal.

[0082] Fifthly, embodiments of the present invention provide a network-side device, including a transceiver and a processor.

[0083] The transceiver is used to: send the first synchronization reference signal density corresponding to the cell to the terminal;

[0084] The transceiver is also configured to: receive the synchronization reference signal density requirement sent by the terminal when the first synchronization reference signal density does not meet the transmission requirements of the terminal;

[0085] The transceiver is further configured to: send a second synchronization reference signal density to the terminal based on the synchronization reference signal density requirement, wherein the second synchronization reference signal density is used to configure the synchronization reference signal of the terminal.

[0086] Optionally, the transceiver is further configured to: receive first indication information sent by the terminal, the first indication information being used to indicate whether the terminal supports reporting the synchronization reference signal density requirement when the first synchronization reference signal density does not meet the terminal's transmission requirements.

[0087] Optionally, the synchronization reference signal density requirement includes a third synchronization reference signal density;

[0088] The transceiver is specifically used to: send a second synchronization reference signal density to the terminal based on the third synchronization reference signal density.

[0089] Optionally, the transceiver is further configured to: send a density comparison threshold to the terminal;

[0090] The density comparison threshold is used to determine whether the density of the first synchronization reference signal meets the transmission requirements of the terminal.

[0091] Optionally, the transceiver is further configured to: receive second indication information sent by the terminal, the second indication information being used to indicate whether the first synchronization reference signal density meets the transmission requirements of the terminal;

[0092] If, based on the second indication information, it is determined that the first synchronization reference signal density does not meet the transmission requirements of the terminal, a second synchronization reference signal density is sent to the terminal based on the synchronization reference signal density requirement.

[0093] Optionally, the first synchronization reference signal density is characterized by a first synchronization reference signal distance, and / or the second synchronization reference signal density is characterized by a second synchronization reference signal distance, and / or the third synchronization reference signal density is characterized by a third synchronization reference signal distance.

[0094] Optionally, the first synchronization reference signal density is transmitted via Radio Resource Control (RRC) signaling; and / or, the second synchronization reference signal density is transmitted via Downlink Control Information (DCI) signaling.

[0095] Optionally, the second synchronization reference signal density is used to configure the synchronization reference signal of the terminal on the Type 1 Physical Downlink Shared Channel (PDSCH).

[0096] Sixthly, embodiments of the present invention provide a terminal, including a transceiver and a processor.

[0097] The transceiver is used to: receive the first synchronization reference signal density corresponding to the cell sent by the network-side equipment;

[0098] The transceiver is also configured to: send a synchronization reference signal density requirement to the network-side device when it is determined that the first synchronization reference signal density does not meet the transmission requirements of the terminal;

[0099] The transceiver is further configured to: receive a second synchronization reference signal density sent by the network-side device based on the synchronization reference signal density requirement, wherein the second synchronization reference signal density is used to configure the synchronization reference signal of the terminal.

[0100] Optionally, the transceiver is further configured to: send a first indication information to a network-side device, the first indication information being used to indicate whether the terminal supports reporting the synchronization reference signal density requirement when the first synchronization reference signal density does not meet the terminal's transmission requirements.

[0101] Optionally, the processor is configured to: determine a third synchronization reference signal density corresponding to the terminal, wherein the third synchronization reference signal density is a synchronization reference signal density that satisfies the transmission requirements of the terminal;

[0102] Based on the first synchronization reference signal density and the third synchronization reference signal density, determine whether the first synchronization reference signal density meets the transmission requirements of the terminal;

[0103] The synchronization reference signal density requirement includes the third synchronization reference signal density.

[0104] Optionally, the transceiver is further configured to: receive a density comparison threshold sent by the network-side device;

[0105] The processor is specifically used for:

[0106] Determine density comparison parameters based on the first synchronization reference signal density and the third synchronization reference signal density;

[0107] Based on the density comparison parameters and the density comparison threshold, it is determined whether the density of the first synchronization reference signal meets the transmission requirements of the terminal.

[0108] Optionally, the transceiver is further configured to: send a second indication message to the network-side device, the second indication message being used to indicate whether the first synchronization reference signal density meets the transmission requirements of the terminal.

[0109] Optionally, the processor is used to:

[0110] If it is determined that the first synchronization reference signal density meets the transmission requirements of the terminal, the synchronization reference signal of the terminal is configured based on the first synchronization reference signal density.

[0111] In a seventh aspect, embodiments of the present invention provide a network-side device, including: a processor, a memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, implements the steps of the signal configuration method described in the first aspect.

[0112] Eighthly, embodiments of the present invention provide a terminal, including: a processor, a memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, implements the steps of the signal configuration method described in the second aspect above.

[0113] Ninthly, embodiments of the present invention provide a computer-readable storage medium storing a computer program, wherein when the computer program is executed by a processor, it implements the steps of the signal configuration method described in the first aspect; or when the computer program is executed by a processor, it implements the steps of the signal configuration method described in the second aspect.

[0114] In this embodiment of the invention, the network-side device sends a first synchronization reference signal density corresponding to the cell to the terminal; if the first synchronization reference signal density does not meet the terminal's transmission requirements, it receives a synchronization reference signal density requirement sent by the terminal; based on the synchronization reference signal density requirement, it sends a second synchronization reference signal density to the terminal, the second synchronization reference signal density being used to configure the terminal's synchronization reference signal. Thus, through feedback from the terminal to the cell-level first synchronization reference signal density configured by the network-side device, the network-side device can specifically configure a terminal-level second synchronization reference signal density for the terminal based on the synchronization reference signal density requirement sent by the terminal, increasing the probability that the configured synchronization reference signal density meets the terminal's transmission requirements, thereby improving the terminal's communication performance. Attached Figure Description

[0115] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0116] Figure 1 This is one of the flowcharts of a signal configuration method provided in an embodiment of the present invention;

[0117] Figure 2 This is a second flowchart of a signal configuration method provided in an embodiment of the present invention;

[0118] Figure 3 This is the third flowchart of a signal configuration method provided in an embodiment of the present invention;

[0119] Figure 4 This is a schematic diagram of a cell-level synchronization reference signal frequency domain pattern provided in an embodiment of the present invention;

[0120] Figure 5 This is a schematic diagram of a UE-specific synchronization reference signal frequency domain pattern provided in an embodiment of the present invention;

[0121] Figure 6 This is one of the structural schematic diagrams of a signal configuration device provided in an embodiment of the present invention;

[0122] Figure 7 This is a second schematic diagram of a signal configuration device provided in an embodiment of the present invention;

[0123] Figure 8 This is a schematic diagram of the structure of a network-side device provided in an embodiment of the present invention;

[0124] Figure 9 This is a schematic diagram of the structure of a terminal provided in an embodiment of the present invention. Detailed Implementation

[0125] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0126] In this embodiment of the invention, a signal configuration method, apparatus, terminal, and network-side device are proposed to solve the problem in the related art where the network-side device configures a fixed synchronization reference signal density for the terminal, which may not meet the transmission requirements of the terminal, resulting in poor terminal communication performance.

[0127] See Figure 1 , Figure 1 This is a flowchart of a signal configuration method provided in an embodiment of the present invention, executed by a network-side device, such as... Figure 1 As shown, the method includes the following steps:

[0128] Step 101: Send the first synchronization reference signal density corresponding to the cell to the terminal.

[0129] The first synchronization reference signal density corresponding to the cell can be described as a cell-specific synchronization reference signal density, or it can also be described as a cell-specific synchronization reference signal frequency domain density; or it can also be described as a cell-specific synchronization accuracy. Network-side equipment can configure the first synchronization reference signal density corresponding to the cell where the terminal is located via Radio Resource Control (RRC) signaling.

[0130] It should be noted that the network-side equipment can also send the starting resource element (RE) location parameters corresponding to the cell to the terminal. The starting RE location parameters are used to indicate which subcarrier of the first resource block (RB) the synchronization reference signal is located on. The starting RE location parameters corresponding to the cell can be cell-specific.

[0131] Step 102: If the first synchronization reference signal density does not meet the transmission requirements of the terminal, receive the synchronization reference signal density requirement sent by the terminal.

[0132] Specifically, if the terminal determines that the first synchronization reference signal density does not meet its transmission requirements, it sends a synchronization reference signal density request to the network-side device. The terminal can determine a third synchronization reference signal density corresponding to itself, which is a synchronization reference signal density that meets its transmission requirements; and based on the first and third synchronization reference signal densities, it determines whether the first synchronization reference signal density meets the terminal's transmission requirements.

[0133] It should be noted that, if the terminal determines that the first synchronization reference signal density meets the terminal's transmission requirements, the terminal can configure the terminal's synchronization reference signal based on the first synchronization reference signal density.

[0134] Step 103: Send a second synchronization reference signal density to the terminal based on the synchronization reference signal density requirement. The second synchronization reference signal density is used to configure the synchronization reference signal of the terminal.

[0135] The second synchronization reference signal density can be described as a UE-specific synchronization reference signal density, or it can also be described as a UE-specific synchronization reference signal frequency domain density; or it can also be described as a UE-specific synchronization accuracy. Network-side equipment can configure the second synchronization reference signal density for the terminal through downlink control information (DCI) signaling.

[0136] Additionally, the synchronization reference signal density requirement may carry a third synchronization reference signal density, which is a synchronization reference signal density that meets the transmission requirements of the terminal. The network-side device sending a second synchronization reference signal density to the terminal based on the synchronization reference signal density requirement may include sending the second synchronization reference signal density to the terminal based on the third synchronization reference signal density.

[0137] It should be noted that the network-side equipment can also send the terminal's corresponding start RE position parameter to the terminal. The start RE position parameter is used to indicate which subcarrier of the first RB the synchronization reference signal is located on. The start RE position parameter corresponding to the terminal can be a UE-specific start RE position parameter.

[0138] It should be noted that the 6G vision of "digital twins, ubiquitous intelligence" places higher demands on network performance indicators, such as terabit-level peak rates, user experience rates of 10-100Gbps, and 2-3 times the spectral efficiency improvement compared to 5G. As a new type of transmission technology promising higher spectral efficiency, Super Nyquist technology has attracted widespread attention in the industry, including time-domain waveform overlap multiplexing (such as Super Nyquist (FTN), Overlapping Time-Domain Multiplexing (OVTDM)) and high-efficiency frequency division multiplexing (SE-FDM). All of these transmission technologies improve spectral efficiency through asynchronous transmission at the transmitter and oversampling at the receiver. Therefore, since the beginning of 6G research, academia and industry have studied Super Nyquist transmission technology from multiple perspectives, including sampling theorems, coding modulation, and multiple antennas.

[0139] Related studies lead to the consistent conclusion that the capacity improvement of super-Nyquist transmission systems utilizes the additional bandwidth provided by the non-zero roll-off factor; and that as the signal-to-noise ratio increases, the spectral efficiency of super-Nyquist transmission systems asymptotically equals that of classical Shannon transmission, meaning that the spectral efficiency of super-Nyquist transmission does not exceed the Shannon limit. This conclusion arises because matched filtering and oversampling of the received signal introduce correlated noise, and the higher the proportion of correlated noise, the greater the performance degradation.

[0140] To address the shortcomings of existing super Nyquist transmission systems, researchers have proposed a novel MIMO technology scheme that promises a significant improvement in spectral efficiency. However, this scheme requires improving downlink synchronization accuracy to the sampling point level. Compared to the symbol-level synchronization accuracy in existing MIMO systems, the synchronization accuracy in this novel MIMO system needs to be improved by tens, hundreds, or even thousands of times.

[0141] However, in traditional MIMO systems, symbol-level time-frequency synchronization is provided by the Tracking Reference Signal (TRS) in RRC connection mode. The TRS is a specially configured CSI-RS, where the terminal continuously tracks and compensates for time and frequency deviations by measuring the TRS, thus achieving time-frequency synchronization. However, in existing technologies, the frequency domain density of the TRS is fixed at 3, meaning there are 3 REs for each RB. Even if the frequency domain density of the TRS is extended to the minimum frequency domain density of 0.5 for CSI-RS in 5G NR, the time-domain synchronization accuracy can only be improved by a maximum of 9 times, far from meeting the synchronization accuracy requirements of new MIMO systems. To adapt to the higher level of time-domain synchronization accuracy in these new MIMO systems, the frequency domain density of the synchronization reference signal must be significantly reduced.

[0142] Furthermore, the synchronization accuracy requirements of this novel MIMO system are related to multiple parameters such as terminal capabilities and the number of downlink transmission streams, and may change with each PDSCH transmission. However, existing TRS reference signals are configured using RRC signaling, with a relatively low configuration frequency and long intervals. Therefore, the frequency domain density of the reference signal remains unchanged over a period of time, making it difficult to meet the timely adjustment of synchronization accuracy requirements for novel MIMO transmissions.

[0143] This invention provides a special design for the synchronization reference signal in a novel MIMO system to improve the synchronization accuracy of the MIMO system. This invention designs a two-level synchronization reference signal configuration structure. For example, RRC signaling can be used to configure the cell-specific synchronization reference signal frequency domain density as the common synchronization accuracy of the current cell; based on this, DCI signaling is used to configure the UE-specific synchronization reference signal frequency domain density to respond promptly to the higher synchronization accuracy requirements of each terminal (User Equipment, UE).

[0144] Compared to the existing protocol where CSI-RS configuration is completed by RRC signaling, this embodiment of the invention takes into account the characteristic that the synchronization accuracy requirements of new MIMO systems often change, and designs a two-level synchronization reference signal frequency domain configuration scheme that combines RRC and DCI. This scheme is compatible with existing protocols and can respond promptly to the higher synchronization accuracy requirements proposed by each UE.

[0145] In this embodiment of the invention, the network-side device sends a first synchronization reference signal density corresponding to the cell to the terminal; if the first synchronization reference signal density does not meet the terminal's transmission requirements, it receives a synchronization reference signal density requirement sent by the terminal; based on the synchronization reference signal density requirement, it sends a second synchronization reference signal density to the terminal, the second synchronization reference signal density being used to configure the terminal's synchronization reference signal. Thus, through feedback from the terminal to the cell-level first synchronization reference signal density configured by the network-side device, the network-side device can specifically configure a terminal-level second synchronization reference signal density for the terminal based on the synchronization reference signal density requirement sent by the terminal, increasing the probability that the configured synchronization reference signal density meets the terminal's transmission requirements, thereby improving the terminal's communication performance.

[0146] Optionally, before sending the first synchronization reference signal density corresponding to the cell to the terminal, the method further includes:

[0147] The terminal receives a first indication message, which indicates whether the terminal supports reporting the synchronization reference signal density requirement when the first synchronization reference signal density does not meet the terminal's transmission requirements.

[0148] The terminal can send the first indication information to the network-side equipment. The reporting methods of the first indication information include, but are not limited to, reporting it as a UE capability in RRC signaling; or implicitly reporting it as a preamble sequence number or packet during initial access; or reporting it as the content of Message 3 (Msg3) / Message A (MsgA) Physical Uplink Shared Channel (PUSCH) during initial access; and so on.

[0149] In this embodiment of the invention, the network-side device receives first indication information sent by the terminal and can determine whether the terminal has the ability to report the synchronization reference signal density requirement when the first synchronization reference signal density does not meet the terminal's transmission requirements.

[0150] Optionally, the synchronization reference signal density requirement includes a third synchronization reference signal density;

[0151] Sending the second synchronization reference signal density to the terminal based on the synchronization reference signal density requirement includes:

[0152] The second synchronization reference signal density is sent to the terminal based on the third synchronization reference signal density.

[0153] The second synchronization reference signal density can be determined based on the third synchronization reference signal density. For example, the value of the second synchronization reference signal density can be the third synchronization reference signal density; or, the value of the second synchronization reference signal density can be the sum of the third synchronization reference signal density and a preset value; or, the value of the second synchronization reference signal density can be the difference between the third synchronization reference signal density and the preset value; etc.; this embodiment does not limit this. The preset value can be 1, 2, 3, etc.

[0154] In addition, the third synchronization reference signal density can be described as a UE-specific synchronization reference signal density requirement, or it can also be described as a UE-specific synchronization reference signal frequency domain density requirement; or it can also be described as a UE-specific synchronization accuracy requirement.

[0155] In this embodiment of the invention, the synchronization reference signal density requirement carries a third synchronization reference signal density. The network-side device sends a second synchronization reference signal density to the terminal based on the third synchronization reference signal density, so that the network-side device can specifically configure a terminal-level second synchronization reference signal density for the terminal through the third synchronization reference signal density carried in the synchronization reference signal density requirement.

[0156] Optionally, the method further includes:

[0157] Send a density comparison threshold to the terminal;

[0158] The density comparison threshold is used to determine whether the density of the first synchronization reference signal meets the transmission requirements of the terminal.

[0159] After receiving the density comparison threshold sent by the network-side device, the terminal can determine the density comparison parameter based on the first synchronization reference signal density and the third synchronization reference signal density carried in the synchronization reference signal density requirement; and determine whether the first synchronization reference signal density meets the terminal's transmission requirements based on the density comparison parameter and the density comparison threshold.

[0160] In one embodiment, the density comparison parameter can be the ratio of the density of the third synchronization reference signal to the density of the first synchronization reference signal.

[0161] In one embodiment, if the density comparison parameter is less than the density comparison threshold, it is determined that the density of the first synchronization reference signal meets the transmission requirements of the terminal. If the density comparison parameter is greater than or equal to the density comparison threshold, it is determined that the density of the first synchronization reference signal does not meet the transmission requirements of the terminal.

[0162] In one embodiment, the density comparison threshold is greater than 1.

[0163] In this embodiment of the invention, the network-side device sends a density comparison threshold to the terminal, so that the terminal can determine whether the density of the first synchronization reference signal meets the terminal's transmission requirements based on the density comparison threshold.

[0164] Optionally, after sending the first synchronization reference signal density corresponding to the cell to the terminal, the method further includes:

[0165] The terminal receives a second indication message, which indicates whether the first synchronization reference signal density meets the terminal's transmission requirements.

[0166] Sending the second synchronization reference signal density to the terminal based on the synchronization reference signal density requirement includes:

[0167] If, based on the second indication information, it is determined that the first synchronization reference signal density does not meet the transmission requirements of the terminal, a second synchronization reference signal density is sent to the terminal based on the synchronization reference signal density requirement.

[0168] In this embodiment of the invention, the terminal can send second indication information to the network-side device. The second indication information indicates whether the first synchronization reference signal density meets the terminal's transmission requirements. If the network-side device determines, based on the second indication information, that the first synchronization reference signal density does not meet the terminal's transmission requirements, it sends a second synchronization reference signal density to the terminal based on the required synchronization reference signal density. Thus, the network-side device can determine whether to specifically configure a terminal-level second synchronization reference signal density for the terminal based on the second indication information sent by the terminal.

[0169] Optionally, the first synchronization reference signal density is characterized by a first synchronization reference signal distance, and / or the second synchronization reference signal density is characterized by a second synchronization reference signal distance, and / or the third synchronization reference signal density is characterized by a third synchronization reference signal distance.

[0170] It should be noted that, considering that in existing protocols, when the CSI-RS density is 0.5, it means that every two RBs are grouped together, and CSI-RS exists only on odd-numbered or even-numbered RBs in each group, it does not support flexible configuration of RBs with reference signals in each group. Therefore, this embodiment of the invention takes into account the sparse frequency domain configuration of synchronization reference signals and directly uses the synchronization reference signal distance parameter to design the frequency domain occurrence positions of two adjacent synchronization reference signals.

[0171] Furthermore, the synchronization reference signal distance can refer to the frequency domain distance between synchronization reference signals. Considering that high-precision time-domain synchronization can only be achieved between two widely spaced frequency domain REs, this invention addresses the inflexible frequency domain configuration of reference signals in existing protocols by flexibly controlling the frequency domain spacing between two consecutive synchronization reference signals through the synchronization reference signal frequency domain distance. Unlike existing configuration schemes where the TRS frequency domain density is fixed at 3 and each RB or RB group designs a reference signal pattern, this invention designs a synchronization reference signal frequency domain distance, enabling flexible configuration of the synchronization reference signal frequency domain pattern and significantly improving the synchronization accuracy of the UE.

[0172] Optionally, the first synchronization reference signal density is transmitted via Radio Resource Control (RRC) signaling; and / or, the second synchronization reference signal density is transmitted via Downlink Control Information (DCI) signaling.

[0173] The embodiments of the present invention take into account the fact that the synchronization accuracy requirements of each UE often change, as well as compatibility with existing protocols, and design an effective two-level synchronization reference signal configuration scheme that uses RRC signaling and DCI signaling together to efficiently provide appropriate synchronization accuracy for each terminal user.

[0174] Optionally, the second synchronization reference signal density is used to configure the synchronization reference signal of the terminal on the Type 1 Physical Downlink Shared Channel (PDSCH).

[0175] In this embodiment of the invention, to avoid situations where synchronization reference signals with large frequency domain distances cover PDSCH resources not allocated to the current terminal in a Type 0 Physical downlink shared channel (PDSCH) (i.e., discontinuous PDSCH resource configuration scheme), thereby causing ambiguity, this embodiment of the invention designs the synchronization reference signal configuration for the Type 1 PDSCH frequency domain continuous resource allocation case of RRC signaling configuration. This special design of the synchronization reference signal on Type 1 PDSCH avoids the situation where sparse synchronization reference signals fall into resources not belonging to the current terminal on Type 0 PDSCH, thereby avoiding ambiguity.

[0176] See Figure 2 , Figure 2 This is a flowchart of a signal configuration method provided in an embodiment of the present invention, executed by a terminal, such as... Figure 2 As shown, the method includes the following steps:

[0177] Step 201: Receive the first synchronization reference signal density corresponding to the cell sent by the network-side device;

[0178] Step 202: If it is determined that the first synchronization reference signal density does not meet the transmission requirements of the terminal, a synchronization reference signal density requirement is sent to the network-side device.

[0179] Step 203: Receive the second synchronization reference signal density sent by the network-side device based on the synchronization reference signal density requirement. The second synchronization reference signal density is used to configure the synchronization reference signal of the terminal.

[0180] Optionally, before receiving the first synchronization reference signal density corresponding to the cell sent by the network-side device, the method further includes:

[0181] Send a first indication message to the network-side device. The first indication message is used to indicate whether the terminal supports reporting the synchronization reference signal density requirement when the first synchronization reference signal density does not meet the terminal's transmission requirements.

[0182] Optionally, after receiving the first synchronization reference signal density corresponding to the cell sent by the network-side device, the method further includes:

[0183] Determine the third synchronization reference signal density corresponding to the terminal, wherein the third synchronization reference signal density is the synchronization reference signal density that satisfies the transmission requirements of the terminal;

[0184] Based on the first synchronization reference signal density and the third synchronization reference signal density, determine whether the first synchronization reference signal density meets the transmission requirements of the terminal;

[0185] The synchronization reference signal density requirement includes the third synchronization reference signal density.

[0186] Optionally, the method further includes:

[0187] Receive the density comparison threshold sent by the network-side device;

[0188] The step of determining whether the first synchronization reference signal density meets the transmission requirements of the terminal based on the first synchronization reference signal density and the third synchronization reference signal density includes:

[0189] Determine density comparison parameters based on the first synchronization reference signal density and the third synchronization reference signal density;

[0190] Based on the density comparison parameters and the density comparison threshold, it is determined whether the density of the first synchronization reference signal meets the transmission requirements of the terminal.

[0191] Optionally, after receiving the first synchronization reference signal density corresponding to the cell sent by the network-side device, the method further includes:

[0192] Send a second indication message to the network-side device, the second indication message being used to indicate whether the first synchronization reference signal density meets the transmission requirements of the terminal.

[0193] Optionally, after sending the second indication information to the network-side device, the method further includes:

[0194] If it is determined that the first synchronization reference signal density meets the transmission requirements of the terminal, the synchronization reference signal of the terminal is configured based on the first synchronization reference signal density.

[0195] It should be noted that this embodiment is used as a reference for... Figure 1 The embodiments shown in the diagram correspond to the implementation methods of the terminal. For specific implementation methods, please refer to [link / reference]. Figure 1 To avoid repetition, the relevant descriptions in the embodiments shown will not be repeated in this embodiment.

[0196] like Figure 3As shown, in a specific embodiment, taking the network-side device as the terminal as an example, for the continuous allocation of Type 1 PDSCH frequency domain resources configured by RRC signaling, the base station first configures the cell-specific synchronization accuracy (such as the first synchronization reference signal density) for the cell through RRC signaling, and then the terminal (i.e. UE) determines whether the synchronization accuracy can meet the downlink transmission requirements.

[0197] If the requirements are met, the terminal can report the cell-specific synchronization accuracy to the base station. If the requirements are not met, the terminal reports a synchronization accuracy requirement (such as a synchronization reference signal density requirement). After receiving the requirement, the base station will configure a UE-specific synchronization accuracy (such as a second synchronization reference signal density) for the terminal and notify the terminal of the configuration result using DCI.

[0198] First, the terminals within the cell need to report support for this new MIMO transmission scheme. The reporting methods include, but are not limited to, reporting it as a UE capability in RRC signaling; or implicitly reporting it as a preamble sequence number or packet during initial access; or reporting it as the content of Msg3 / MsgA PUSCH during initial access; and so on.

[0199] When a base station receives information reported by a terminal, and the PDSCH frequency domain resources of the cell are configured as Type 1 continuous resource allocation by RRC signaling, the base station also needs to configure cell-specific synchronization accuracy and add an additional UE-specific synchronization accuracy configuration threshold (such as a density comparison threshold) for the cell in the RRC signaling. The representation of cell-specific synchronization accuracy includes, but is not limited to, using cell-specific synchronization reference signal frequency domain spacing parameters (such as cell-specific synchronization reference signal distance parameters) and / or starting RE position parameters to jointly represent it.

[0200] The frequency domain spacing parameter of the synchronization reference signal takes the value of an integer greater than or equal to 1, which indicates that the two REs containing the two synchronization reference signals are separated by this parameter number of consecutive REs in the frequency domain;

[0201] The starting RE position parameter takes the value of an integer greater than or equal to 0, indicating which subcarrier of the RB the synchronization reference signal on the first RB is located on;

[0202] The UE-specific synchronization accuracy configuration threshold is a number greater than 1, indicating that if the ratio of the terminal's synchronization accuracy requirement to the cell-specific synchronization accuracy is greater than or equal to this threshold, the base station needs to configure additional UE-specific synchronization accuracy for the current terminal.

[0203] The terminal determines its synchronization reference signal distance requirement parameter (such as the third synchronization reference signal density). This parameter represents the frequency domain distance between adjacent downlink synchronization reference signals calculated based on the synchronization accuracy required by the terminal in this downlink MIMO transmission. In other words, the terminal needs two adjacent downlink synchronization reference signals to be spaced apart by this parameter number of consecutive REs in the frequency domain in order to meet its synchronization requirements.

[0204] The terminal divides the UE's synchronization reference signal distance requirement parameter by the cell-specific synchronization reference signal distance parameter, and compares this ratio (such as the density comparison parameter) with the UE-specific synchronization accuracy configuration threshold to determine whether to request the base station to configure UE-specific synchronization accuracy for it.

[0205] If the ratio (such as the density comparison parameter) is less than the UE-specific synchronization accuracy configuration threshold, it indicates that the UE's synchronization accuracy is not significantly higher than the cell-specific synchronization accuracy. In this case, the UE reports the UE-specific synchronization reference signal indication information (such as the second indication information) with a value of 0. After receiving this parameter, the base station determines that there is no need to configure additional UE-specific synchronization accuracy for the current UE, and the terminal can continue to use the cell-specific synchronization accuracy. The specific methods for the terminal to report the UE-specific synchronization reference signal indication information parameter include, but are not limited to, reporting it along with the CSI feedback information in the UCI.

[0206] If this ratio (such as the density comparison parameter) is greater than or equal to the UE-specific synchronization accuracy configuration threshold, it indicates that the UE's synchronization accuracy requirement is significantly higher than the Cell-specific synchronization accuracy. In this case, the UE reports a UE-specific synchronization reference signal indication information (such as the second indication information UE-specific Sync_RS indicator) with a value of 1. At the same time, it reports its synchronization reference signal distance requirement parameter. This parameter represents the adjacent downlink synchronization reference frequency domain distance calculated based on the synchronization accuracy required by the terminal in this downlink MIMO transmission. That is, the terminal needs two downlink synchronization reference signals with a frequency domain interval of this parameter number of consecutive REs to meet its synchronization requirements.

[0207] The specific methods by which the terminal reports UE-specific synchronization reference signal indication information parameters and synchronization reference signal distance requirement parameters include, but are not limited to, reporting them along with CSI feedback information in the UCI.

[0208] When the base station receives the UE-specific synchronization reference signal indication information, it determines that the UE-specific synchronization accuracy needs to be configured for the current UE, and configures it according to the synchronization reference signal distance requirement parameters reported by the UE. Finally, the base station notifies the UE of the UE-specific synchronization reference signal configuration through downlink DCI.

[0209] The UE-specific synchronization accuracy is characterized by, but is not limited to, using UE-specific synchronization reference signal frequency domain spacing parameters (such as UE-specific synchronization reference signal distance parameters) and / or starting RE position parameters, etc., and the meaning of each parameter is the same as that of the parameters under cell-specific.

[0210] The configuration of the synchronization reference signal is illustrated below through two examples:

[0211] Example 1:

[0212] Assuming a UE reports support for this new type of MIMO transmission in its terminal capabilities, the base station configures the following parameters via RRC signaling to collectively characterize the frequency domain pattern of the cell-level synchronization reference signal:

[0213] Cell-specific Sync_RS distance=40

[0214] Cell-specific Sync_RE location=4

[0215] Among them, Cell-specific Sync_RS distance represents the cell-specific synchronization reference signal distance parameter; Cell-specific Sync_RE location represents the cell-specific starting RE location parameter.

[0216] That is, a synchronization reference signal appears every 40 REs. The synchronization reference signal on the first RB is located on the subcarrier numbered 4. Therefore, the frequency domain pattern of the cell-level synchronization reference signal can be represented as follows: Figure 4 The diagram shown.

[0217] In addition, the base station also issues a UE-specific synchronization accuracy configuration threshold in the RRC signaling as follows:

[0218] Configuration threshold = 2

[0219] Among them, the Configuration threshold represents the UE-specific synchronization accuracy configuration threshold.

[0220] Then, the terminal determines its own synchronization accuracy requirement as UE Sync_RS distance demand = 50. The terminal divides this value by the cell-level synchronization reference signal distance parameter and compares it with the UE-specific synchronization accuracy configuration threshold. In this embodiment, although the UE's synchronization accuracy requirement is slightly higher than the cell-level synchronization accuracy, because 50 / 40 < 2, the terminal reports a value of 0 for the UE-specific Sync_RS indicator using the uplink UCI. The UE-specific Sync_RS indicator represents the UE-specific synchronization reference signal indication information.

[0221] After receiving this parameter, the base station determines that there is no need to configure UE-specific synchronization accuracy for the terminal; the UE can use the cell-level synchronization accuracy. Therefore, in this embodiment, the frequency domain pattern of the UE's synchronization reference signal is similar to... Figure 4 Completely consistent, the UE can use this pattern to achieve high-precision sampling point-level time offset correction.

[0222] Example 2:

[0223] Assuming a UE reports support for this new type of MIMO transmission in its terminal capabilities, the base station configures the following parameters via RRC signaling, the same as in Example 1:

[0224] Cell-specific Sync_RS distance=40

[0225] Cell-specific Sync_RE location=4

[0226] Therefore, the frequency domain pattern of the cell-level synchronization reference signal of this cell is... Figure 4 Totally consistent.

[0227] In addition, the base station also issues a UE-specific synchronization accuracy configuration threshold in the RRC signaling as follows:

[0228] Configuration threshold = 2

[0229] Then, the terminal determines its own synchronization accuracy requirement as UE Sync_RS distance demand = 129. Here, UE Sync_RS distance demand represents the UE's synchronization reference signal distance requirement parameter. The terminal divides this value by the cell-level synchronization reference signal distance parameter and compares it with the UE-specific synchronization accuracy configuration threshold. Because 129 / 40 > 2, the terminal uses the uplink UCI to report that the UE-specific Sync_RS indicator is set to 1, and UE Sync_RS distance demand = 129.

[0230] After receiving the above two parameters, the base station first determines whether to configure UE-specific synchronization accuracy for the UE using the first parameter, UE-specific Sync_RSindicator. Then, it combines the second parameter, UE Sync_RSdistance demand, to determine that the UE-specific synchronization accuracy can be represented by the following two parameters:

[0231] UE-specific Sync_RS distance=129

[0232] UE-specific Sync_RE location=7

[0233] Among them, UE-specific Sync_RS distance represents the UE-specific synchronization reference signal distance parameter; UE-specific Sync_RE location represents the UE-specific starting RE location parameter.

[0234] The base station notifies the UE of the above two parameters via downlink DCI. At this time, the actual synchronization reference signal pattern on the UE side is as follows: Figure 5 As shown, the UE-level synchronization reference signal appears once every 129 REs in the frequency domain, and the initial UE is located on the first RB numbered 7 subcarrier.

[0235] This invention presents a two-level synchronization reference signal configuration structure. RRC signaling is used to configure the cell-specific synchronization reference signal frequency domain density as the common synchronization accuracy of the current cell. On this basis, DCI signaling is used to configure the UE-specific synchronization reference signal frequency domain density to respond promptly to the higher synchronization accuracy requirements proposed by each UE.

[0236] See Figure 6 , Figure 6This is a schematic diagram of a signal configuration device provided in an embodiment of the present invention, applied to a network-side device, i.e., the network-side device includes the signal configuration device, such as... Figure 6 As shown, the signal configuration device 300 includes:

[0237] The first transmitting module 301 is used to transmit the first synchronization reference signal density corresponding to the cell to the terminal;

[0238] The first receiving module 302 is used to receive the synchronization reference signal density requirement sent by the terminal when the first synchronization reference signal density does not meet the transmission requirements of the terminal.

[0239] The second transmitting module 303 is used to transmit a second synchronization reference signal density to the terminal based on the synchronization reference signal density requirement, wherein the second synchronization reference signal density is used to configure the synchronization reference signal of the terminal.

[0240] Optionally, before sending the first synchronization reference signal density corresponding to the cell to the terminal, the device further includes:

[0241] The second receiving module is used to receive first indication information sent by the terminal. The first indication information is used to indicate whether the terminal supports reporting the synchronization reference signal density requirement when the first synchronization reference signal density does not meet the transmission requirements of the terminal.

[0242] Optionally, the synchronization reference signal density requirement includes a third synchronization reference signal density;

[0243] The second sending module is specifically used for:

[0244] The second synchronization reference signal density is sent to the terminal based on the third synchronization reference signal density.

[0245] Optionally, the device further includes:

[0246] The third sending module is used to send a density comparison threshold to the terminal;

[0247] The density comparison threshold is used to determine whether the density of the first synchronization reference signal meets the transmission requirements of the terminal.

[0248] Optionally, after sending the first synchronization reference signal density corresponding to the cell to the terminal, the device further includes:

[0249] The third receiving module is used to receive the second indication information sent by the terminal, the second indication information being used to indicate whether the density of the first synchronization reference signal meets the transmission requirements of the terminal;

[0250] The second sending module is specifically used for:

[0251] If, based on the second indication information, it is determined that the first synchronization reference signal density does not meet the transmission requirements of the terminal, a second synchronization reference signal density is sent to the terminal based on the synchronization reference signal density requirement.

[0252] Optionally, the first synchronization reference signal density is characterized by a first synchronization reference signal distance, and / or the second synchronization reference signal density is characterized by a second synchronization reference signal distance, and / or the third synchronization reference signal density is characterized by a third synchronization reference signal distance.

[0253] Optionally, the first synchronization reference signal density is transmitted via Radio Resource Control (RRC) signaling; and / or, the second synchronization reference signal density is transmitted via Downlink Control Information (DCI) signaling.

[0254] Optionally, the second synchronization reference signal density is used to configure the synchronization reference signal of the terminal on the Type 1 Physical Downlink Shared Channel (PDSCH).

[0255] Network-side devices can achieve Figure 1 The various processes implemented in the method embodiments shown can achieve the same beneficial effects, and will not be described again here to avoid repetition.

[0256] See Figure 7 , Figure 7 This is a schematic diagram of a signal configuration device provided in an embodiment of the present invention, applied to a terminal, i.e., the terminal includes the signal configuration device, such as... Figure 7 As shown, the signal configuration device 400 includes:

[0257] The first receiving module 401 is used to receive the first synchronization reference signal density corresponding to the cell sent by the network-side device;

[0258] The first sending module 402 is used to send a synchronization reference signal density requirement to the network-side device when it is determined that the first synchronization reference signal density does not meet the transmission requirements of the terminal.

[0259] The second receiving module 403 is used to receive the second synchronization reference signal density sent by the network-side device based on the synchronization reference signal density requirement, wherein the second synchronization reference signal density is used to configure the synchronization reference signal of the terminal.

[0260] Optionally, before receiving the first synchronization reference signal density corresponding to the cell sent by the network-side device, the apparatus further includes:

[0261] The second sending module is used to send first indication information to the network-side device. The first indication information is used to indicate whether the terminal supports reporting the synchronization reference signal density requirement when the first synchronization reference signal density does not meet the terminal's transmission requirements.

[0262] Optionally, after receiving the first synchronization reference signal density corresponding to the cell sent by the network-side device, the apparatus further includes:

[0263] The first determining module is used to determine the third synchronization reference signal density corresponding to the terminal, wherein the third synchronization reference signal density is a synchronization reference signal density that meets the transmission requirements of the terminal.

[0264] The second determining module is used to determine whether the first synchronization reference signal density meets the transmission requirements of the terminal based on the first synchronization reference signal density and the third synchronization reference signal density.

[0265] The synchronization reference signal density requirement includes the third synchronization reference signal density.

[0266] Optionally, the device further includes:

[0267] The third receiving module is used to receive the density comparison threshold sent by the network-side device;

[0268] The second determining module is specifically used for:

[0269] Determine density comparison parameters based on the first synchronization reference signal density and the third synchronization reference signal density;

[0270] Based on the density comparison parameters and the density comparison threshold, it is determined whether the density of the first synchronization reference signal meets the transmission requirements of the terminal.

[0271] Optionally, after receiving the first synchronization reference signal density corresponding to the cell sent by the network-side device, the apparatus further includes:

[0272] The third sending module is used to send second indication information to the network-side device, the second indication information being used to indicate whether the first synchronization reference signal density meets the transmission requirements of the terminal.

[0273] Optionally, after sending the second indication information to the network-side device, the apparatus further includes:

[0274] The configuration module is used to configure the synchronization reference signal of the terminal based on the first synchronization reference signal density, provided that the first synchronization reference signal density satisfies the transmission requirements of the terminal.

[0275] The terminal can achieve Figure 2 The various processes implemented in the method embodiments shown can achieve the same beneficial effects, and will not be described again here to avoid repetition.

[0276] This invention also provides a network-side device, including: a processor, a memory, and a program stored in the memory and executable on the processor. When the program is executed by the processor, it implements the various processes of the above-described signal configuration method embodiments applied to the network-side device and achieves the same technical effect. To avoid repetition, it will not be described again here.

[0277] For details, see Figure 8 As shown, this embodiment of the invention also provides a network-side device, including a bus 501, a transceiver 502, an antenna 503, a bus interface 504, a processor 505, and a memory 506.

[0278] The transceiver 502 is used to: send the first synchronization reference signal density corresponding to the cell to the terminal;

[0279] The transceiver 502 is further configured to: receive the synchronization reference signal density requirement sent by the terminal when the first synchronization reference signal density does not meet the transmission requirements of the terminal;

[0280] The transceiver 502 is further configured to: send a second synchronization reference signal density to the terminal based on the synchronization reference signal density requirement, wherein the second synchronization reference signal density is used to configure the synchronization reference signal of the terminal.

[0281] Optionally, the transceiver 502 is further configured to: receive first indication information sent by the terminal, the first indication information being used to indicate whether the terminal supports reporting the synchronization reference signal density requirement when the first synchronization reference signal density does not meet the terminal's transmission requirements.

[0282] Optionally, the synchronization reference signal density requirement includes a third synchronization reference signal density;

[0283] The transceiver 502 is specifically used to: send a second synchronization reference signal density to the terminal based on the third synchronization reference signal density.

[0284] Optionally, the transceiver 502 is further configured to: send a density comparison threshold to the terminal;

[0285] The density comparison threshold is used to determine whether the density of the first synchronization reference signal meets the transmission requirements of the terminal.

[0286] Optionally, the transceiver 502 is further configured to: receive second indication information sent by the terminal, the second indication information being used to indicate whether the first synchronization reference signal density meets the transmission requirements of the terminal;

[0287] If, based on the second indication information, it is determined that the first synchronization reference signal density does not meet the transmission requirements of the terminal, a second synchronization reference signal density is sent to the terminal based on the synchronization reference signal density requirement.

[0288] Optionally, the first synchronization reference signal density is characterized by a first synchronization reference signal distance, and / or the second synchronization reference signal density is characterized by a second synchronization reference signal distance, and / or the third synchronization reference signal density is characterized by a third synchronization reference signal distance.

[0289] Optionally, the first synchronization reference signal density is transmitted via Radio Resource Control (RRC) signaling; and / or, the second synchronization reference signal density is transmitted via Downlink Control Information (DCI) signaling.

[0290] Optionally, the second synchronization reference signal density is used to configure the synchronization reference signal of the terminal on the Type 1 Physical Downlink Shared Channel (PDSCH).

[0291] exist Figure 8 In this document, a bus architecture (represented by bus 501) is used. Bus 501 can include any number of interconnected buses and bridges, linking various circuits including one or more processors 505 (represented by processor 505) and memory 506 (represented by memory 506). Bus 501 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. Bus interface 504 provides an interface between bus 501 and transceiver 502. Transceiver 502 can be a single element or multiple elements, such as multiple receivers and transmitters, providing a unit for communicating with various other devices over a transmission medium. Data processed by processor 505 is transmitted over a wireless medium via antenna 503, which further receives data and transmits it to processor 505.

[0292] Processor 505 manages bus 501 and general processing, and also provides various functions, including timing, peripheral interfaces, voltage regulation, power management, and other control functions. Memory 506 can be used to store data used by processor 505 during operation.

[0293] Optionally, the processor 505 can be a CPU, ASIC, FPGA, or CPLD.

[0294] This invention also provides a terminal, including: a processor, a memory, and a program stored in the memory and executable on the processor. When the program is executed by the processor, it implements the various processes of the above-described signal configuration method embodiments applied to the terminal and achieves the same technical effect. To avoid repetition, it will not be described again here.

[0295] For details, see Figure 9 As shown, this embodiment of the invention also provides a terminal, including a bus 601, a transceiver 602, an antenna 603, a bus interface 604, a processor 605, and a memory 606.

[0296] The transceiver 602 is used to: receive the first synchronization reference signal density corresponding to the cell sent by the network-side equipment;

[0297] The transceiver 602 is further configured to: send a synchronization reference signal density requirement to the network-side device when it is determined that the first synchronization reference signal density does not meet the transmission requirements of the terminal;

[0298] The transceiver 602 is further configured to: receive a second synchronization reference signal density sent by the network-side device based on the synchronization reference signal density requirement, wherein the second synchronization reference signal density is used to configure the synchronization reference signal of the terminal.

[0299] Optionally, the transceiver 602 is further configured to: send a first indication information to the network-side device, the first indication information being used to indicate whether the terminal supports reporting the synchronization reference signal density requirement when the first synchronization reference signal density does not meet the terminal's transmission requirements.

[0300] Optionally, the processor 605 is configured to: determine the third synchronization reference signal density corresponding to the terminal, wherein the third synchronization reference signal density is a synchronization reference signal density that satisfies the transmission requirements of the terminal;

[0301] Based on the first synchronization reference signal density and the third synchronization reference signal density, determine whether the first synchronization reference signal density meets the transmission requirements of the terminal;

[0302] The synchronization reference signal density requirement includes the third synchronization reference signal density.

[0303] Optionally, the transceiver 602 is further configured to: receive a density comparison threshold sent by the network-side device;

[0304] The processor 605 is specifically used for:

[0305] Determine density comparison parameters based on the first synchronization reference signal density and the third synchronization reference signal density;

[0306] Based on the density comparison parameters and the density comparison threshold, it is determined whether the density of the first synchronization reference signal meets the transmission requirements of the terminal.

[0307] Optionally, the transceiver 602 is further configured to: send a second indication information to the network-side device, the second indication information being used to indicate whether the first synchronization reference signal density meets the transmission requirements of the terminal.

[0308] Optionally, the processor 605 is used for:

[0309] If it is determined that the first synchronization reference signal density meets the transmission requirements of the terminal, the synchronization reference signal of the terminal is configured based on the first synchronization reference signal density.

[0310] exist Figure 9 In this document, a bus architecture (represented by bus 601) is used. Bus 601 can include any number of interconnected buses and bridges, linking various circuits including one or more processors 605 (represented by processor 605) and memory 606 (represented by memory 606). Bus 601 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. Bus interface 604 provides an interface between bus 601 and transceiver 602. Transceiver 602 can be a single element or multiple elements, such as multiple receivers and transmitters, providing a unit for communicating with various other devices over a transmission medium. Data processed by processor 605 is transmitted over a wireless medium via antenna 603, which further receives data and transmits data to processor 605.

[0311] Processor 605 manages bus 601 and general processing, and also provides various functions, including timing, peripheral interface, voltage regulation, power management, and other control functions. Memory 606 can be used to store data used by processor 605 during operation.

[0312] Optionally, the processor 605 can be a CPU, ASIC, FPGA, or CPLD.

[0313] This invention also provides a computer-readable storage medium storing a computer program. When executed by a processor, this computer program implements the various processes of the above-described signal configuration method embodiments and achieves the same technical effects. To avoid repetition, it will not be described again here. The computer-readable storage medium may be, for example, ROM, RAM, a magnetic disk, or an optical disk.

[0314] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0315] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0316] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.

Claims

1. A signal configuration method, executed by a network-side device, characterized in that, The method comprises: sending a terminal a first synchronization reference signal density corresponding to a cell; in a case where the first synchronization reference signal density does not meet transmission requirements of the terminal, receiving a synchronization reference signal density requirement sent by the terminal; sending a second synchronization reference signal density to the terminal based on the synchronization reference signal density requirement, the second synchronization reference signal density being used for configuring a synchronization reference signal of the terminal.

2. The method of claim 1, wherein, Before the step of sending a terminal a first synchronization reference signal density corresponding to a cell, the method further comprises: receiving first indication information sent by the terminal, the first indication information being used for indicating whether the terminal supports reporting the synchronization reference signal density requirement in a case where the first synchronization reference signal density does not meet transmission requirements of the terminal.

3. The method of claim 1, wherein, The synchronization reference signal density requirement carries a third synchronization reference signal density; The step of sending a second synchronization reference signal density to the terminal based on the synchronization reference signal density requirement comprises: sending a second synchronization reference signal density to the terminal based on the third synchronization reference signal density.

4. The method of claim 1, wherein, The method further comprises: sending a density comparison threshold to the terminal; wherein the density comparison threshold is used for determining whether the first synchronization reference signal density meets transmission requirements of the terminal.

5. The method of claim 1, wherein, After the step of sending a terminal a first synchronization reference signal density corresponding to a cell, the method further comprises: receiving second indication information sent by the terminal, the second indication information being used for indicating whether the first synchronization reference signal density meets transmission requirements of the terminal; The step of sending a second synchronization reference signal density to the terminal based on the synchronization reference signal density requirement comprises: in a case where it is determined based on the second indication information that the first synchronization reference signal density does not meet transmission requirements of the terminal, sending a second synchronization reference signal density to the terminal based on the synchronization reference signal density requirement.

6. The method of claim 3, wherein, The first synchronization reference signal density is represented by a first synchronization reference signal distance, and / or the second synchronization reference signal density is represented by a second synchronization reference signal distance, and / or the third synchronization reference signal density is represented by a third synchronization reference signal distance.

7. The method according to any one of claims 1 to 6, characterized in that, The first synchronization reference signal density is sent through radio resource control (RRC) signaling, and / or the second synchronization reference signal density is sent through downlink control information (DCI) signaling.

8. A signal configuration method performed by a terminal, the method comprising: The method comprises: receiving a first synchronization reference signal density corresponding to a cell sent by a network-side device; in a case where it is determined that the first synchronization reference signal density does not meet transmission requirements of the terminal, sending a synchronization reference signal density requirement to the network-side device; receiving a second synchronization reference signal density sent by the network-side device based on the synchronization reference signal density requirement, the second synchronization reference signal density being used for configuring a synchronization reference signal of the terminal.

9. The method of claim 8, wherein, Before the step of receiving a first synchronization reference signal density corresponding to a cell sent by a network-side device, the method further comprises: The first indication information is used to indicate whether the terminal supports reporting the synchronization reference signal density requirement in a case where the first synchronization reference signal density does not meet the transmission requirement of the terminal.

10. The method of claim 8, wherein, After receiving the first synchronization reference signal density corresponding to the cell sent by the network side device, the method further comprises: determining a third synchronization reference signal density corresponding to the terminal, the third synchronization reference signal density being a synchronization reference signal density meeting the transmission requirement of the terminal; determining whether the first synchronization reference signal density meets the transmission requirement of the terminal based on the first synchronization reference signal density and the third synchronization reference signal density; The third synchronization reference signal density is carried in the synchronization reference signal density requirement.

11. The method of claim 10, wherein, The method further comprises: receiving a density comparison threshold value sent by the network side device; The determination of whether the first synchronization reference signal density meets the transmission requirement of the terminal based on the first synchronization reference signal density and the third synchronization reference signal density comprises: determining a density comparison parameter based on the first synchronization reference signal density and the third synchronization reference signal density; determining whether the first synchronization reference signal density meets the transmission requirement of the terminal based on the density comparison parameter and the density comparison threshold value.

12. The method according to any one of claims 8-11, characterized in that, After receiving the first synchronization reference signal density corresponding to the cell sent by the network side device, the method further comprises: sending second indication information to the network side device, the second indication information being used to indicate whether the first synchronization reference signal density meets the transmission requirement of the terminal.

13. The method of claim 12, wherein, After sending the second indication information to the network side device, the method further comprises: in a case where it is determined that the first synchronization reference signal density meets the transmission requirement of the terminal, configuring the synchronization reference signal of the terminal based on the first synchronization reference signal density.

14. A signal configuration apparatus applied to a network side device, comprising: a signal configuration module, configured to configure a signal according to a signal configuration rule. The apparatus comprises: a first sending module configured to send a first synchronization reference signal density corresponding to a cell to a terminal; a first receiving module configured to receive a synchronization reference signal density requirement sent by the terminal in a case where the first synchronization reference signal density does not meet a transmission requirement of the terminal; a second sending module configured to send a second synchronization reference signal density to the terminal based on the synchronization reference signal density requirement, the second synchronization reference signal density being used to configure a synchronization reference signal of the terminal.

15. A signal configuration apparatus applied to a terminal, characterized by comprising: The apparatus comprises: a first receiving module configured to receive a first synchronization reference signal density corresponding to a cell sent by a network side device; a first sending module configured to send a synchronization reference signal density requirement to the network side device in a case where it is determined that the first synchronization reference signal density does not meet a transmission requirement of the terminal; a second receiving module configured to receive a second synchronization reference signal density sent by the network side device based on the synchronization reference signal density requirement, the second synchronization reference signal density being used to configure a synchronization reference signal of the terminal.

16. A network-side device, comprising: The apparatus comprises a transceiver and a processor, the transceiver is configured to send a first synchronization reference signal density corresponding to a cell to a terminal; The transceiver is further configured to receive a synchronization reference signal density requirement sent by the terminal in a case where the first synchronization reference signal density does not meet the transmission requirement of the terminal. The transceiver is further configured to send a second synchronization reference signal density to the terminal based on the synchronization reference signal density requirement, the second synchronization reference signal density being used for configuring the synchronization reference signal of the terminal.

17. A terminal, characterized by The transceiver is configured to receive a first synchronization reference signal density corresponding to a cell sent by a network side device; The transceiver is further configured to send a synchronization reference signal density requirement to the network side device in a case where it is determined that the first synchronization reference signal density does not meet the transmission requirement of the terminal. The transceiver is further configured to receive a second synchronization reference signal density sent by the network side device based on the synchronization reference signal density requirement, the second synchronization reference signal density being used for configuring the synchronization reference signal of the terminal. The transceiver is configured to receive a first synchronization reference signal density corresponding to a cell sent by a network side device; 18. A network-side device, comprising: The processor, the memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, implements the steps of the signal configuration method according to any one of claims 1 to 7. The processor, the memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, implements the steps of the signal configuration method according to any one of claims 8 to 13.

19. A terminal, characterized by The computer program is stored in the computer readable storage medium and is executable by the processor to implement the steps of the signal configuration method according to any one of claims 1 to 7; or the computer program is stored in the computer readable storage medium and is executable by the processor to implement the steps of the signal configuration method according to any one of claims 8 to 13. ​ 20. A computer-readable storage medium, characterized in that, ​

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