System information broadcasting method, intelligent passive device and network side device

Abstract

The application provides a system information broadcasting method, intelligent passive equipment and network side equipment. The method comprises the following steps: the intelligent passive equipment acquires a target data packet carrying system information sent by the network side equipment; and the system information broadcasting is performed according to the target data packet. The embodiment of the application is based on the protocol stack function of the intelligent passive equipment. The network side equipment broadcasts the system information to the terminal through the intelligent passive equipment, realizes the on-demand system information broadcasting of the intelligent passive equipment and realizes the intelligent passive equipment's shaped coverage under the control of the network side equipment.

Description

Technical Field

[0001] This invention relates to the field of communication technology, and in particular to a system information broadcasting method, an intelligent passive device, and a network-side device. Background Technology

[0002] Intelligent Reflecting Surfaces (IRS) or Reconfigurable Intelligent Surfaces (RIS) are a new type of intelligent passive surface (also known as intelligent passive devices). They utilize metamaterials to control the phase of the surface in real time, thereby controlling the reflection angle of incident waves and forming reflected beams in different directions. Intelligent reflectors are characterized by low cost and low power consumption, thus eliminating the need for complex radio frequency (RF) circuitry to relay signals.

[0003] Terminals can transmit signals directly from intelligent passive devices, but how to use intelligent passive devices to achieve information transmission between network-side devices and terminals is not clearly defined in current technology. Summary of the Invention

[0004] The purpose of this invention is to provide a system information broadcasting method, an intelligent passive device, and a network-side device to solve the problem in the prior art of how to use an intelligent passive device to realize information transmission between a network-side device and a terminal.

[0005] To address the aforementioned problems, embodiments of the present invention provide a system information broadcasting method, executed by an intelligent passive device, the method comprising:

[0006] Acquire target data packets carrying system information sent by network-side devices;

[0007] Based on the target data packet, system information is broadcast.

[0008] The acquisition of the target data packet carrying system information sent by the network-side device includes:

[0009] The device receives a first protocol data unit (PDU) sent by the network-side device through a handshake link between the network-side device and the intelligent passive device; the first PDU includes: system information; or, the first PDU includes: system information and at least one terminal identifier.

[0010] The step of broadcasting system information based on the target data packet includes:

[0011] The first PDU is parsed, and a second PDU is constructed using the transparent PDU format; the second PDU includes: system information; or, the second PDU includes: system information and at least one terminal identifier;

[0012] Based on the second PDU, system information is broadcast.

[0013] The system information broadcast based on the second PDU includes:

[0014] If the second PDU does not include a terminal identifier, the second PDU is transmitted within the coverage area of ​​each antenna unit of the intelligent passive device.

[0015] And / or,

[0016] If the second PDU includes a terminal identifier, the system information is transmitted after beamforming according to the location of the terminal indicated by the terminal identifier.

[0017] The acquisition of the target data packet carrying system information sent by the network-side device includes:

[0018] The receiving network-side device uses a transparent PDU format to construct a third PDU, which includes system information.

[0019] The step of broadcasting system information based on the target data packet includes:

[0020] According to the third PDU, within the coverage area of ​​the intelligent passive device, the third PDU is transmitted within the coverage area of ​​each antenna unit of the intelligent passive device.

[0021] Before broadcasting system information based on the target data packet, the method further includes:

[0022] Receive a fourth PDU carrying at least one terminal identifier sent by a network-side device;

[0023] The step of broadcasting system information based on the target data packet includes:

[0024] Parse the fourth PDU to determine at least one terminal identifier;

[0025] Based on the location of the terminal indicated by the terminal identifier, the third PDU is transmitted after beamforming.

[0026] The method further includes:

[0027] Upon receiving the target data packet, a HARQ-ACK response is sent to the network-side device.

[0028] or,

[0029] If the intelligent passive device receives a duplicate target data packet, it discards the duplicate target data packet.

[0030] The terminal identifier includes any one of the following:

[0031] The terminal's corresponding wireless network temporary identifier (RNTI);

[0032] The network-side device and the intelligent passive device have predefined terminal identification information; the predefined terminal identification information has a mapping relationship with the terminal's cell RNTI.

[0033] This invention also provides a system information broadcasting method, executed by a network-side device, the method comprising:

[0034] A target data packet carrying system information is sent to the intelligent passive device, so that the intelligent passive device can broadcast the system information based on the target data packet.

[0035] The step of sending a target data packet carrying system information to the intelligent passive device includes:

[0036] The first protocol data unit (PDU) is sent to the intelligent passive device through a handshake link between the network-side device and the intelligent passive device; the first PDU includes: system information; or, the first PDU includes: system information and at least one terminal identifier.

[0037] The step of sending a target data packet carrying system information to the intelligent passive device includes:

[0038] Send a third PDU constructed using the transparent PDU format to the intelligent passive device, the third PDU including system information.

[0039] The method further includes:

[0040] Send a fourth PDU carrying at least one terminal identifier to the intelligent passive device.

[0041] The process of sending target data packets carrying system information to intelligent passive devices includes:

[0042] The target data packet is sent using the Hybrid Automatic Repeat Request (HARQ) method.

[0043] or,

[0044] The target data packet is sent by repeatedly sending it multiple times.

[0045] The terminal identifier includes any one of the following:

[0046] The terminal's corresponding wireless network temporary identifier (RNTI);

[0047] The network-side device and the intelligent passive device have predefined terminal identification information; the predefined terminal identification information has a mapping relationship with the terminal's cell RNTI.

[0048] This invention also provides a system information broadcasting device for use in intelligent passive devices, the device comprising:

[0049] The first acquisition module is used to acquire target data packets carrying system information sent by network-side devices;

[0050] The broadcast module is used to broadcast system information based on the target data packet.

[0051] This invention also provides an intelligent passive device, including a processor and a transceiver, wherein the transceiver receives and transmits data under the control of the processor, and the processor is used to perform the following operations:

[0052] Acquire target data packets carrying system information sent by network-side devices;

[0053] Based on the target data packet, system information is broadcast.

[0054] The processor is also used to perform the following operations:

[0055] The device receives a first protocol data unit (PDU) sent by the network-side device through a handshake link between the network-side device and the intelligent passive device; the first PDU includes: system information; or, the first PDU includes: system information and at least one terminal identifier.

[0056] The processor is also used to perform the following operations:

[0057] The first PDU is parsed, and a second PDU is constructed using the transparent PDU format; the second PDU includes: system information; or, the second PDU includes: system information and at least one terminal identifier;

[0058] Based on the second PDU, system information is broadcast.

[0059] The processor is also used to perform the following operations:

[0060] If the second PDU does not include a terminal identifier, the second PDU is transmitted within the coverage area of ​​each antenna unit of the intelligent passive device.

[0061] And / or,

[0062] If the second PDU includes a terminal identifier, the system information is transmitted after beamforming according to the location of the terminal indicated by the terminal identifier.

[0063] The processor is also used to perform the following operations:

[0064] The receiving network-side device uses a transparent PDU format to construct a third PDU, which includes system information.

[0065] The processor is also used to perform the following operations:

[0066] According to the third PDU, within the coverage area of ​​the intelligent passive device, the third PDU is transmitted within the coverage area of ​​each antenna unit of the intelligent passive device.

[0067] The processor is also used to perform the following operations:

[0068] Receive a fourth PDU carrying at least one terminal identifier sent by a network-side device;

[0069] Parse the fourth PDU to determine at least one terminal identifier;

[0070] Based on the location of the terminal indicated by the terminal identifier, the third PDU is transmitted after beamforming.

[0071] The processor is also used to perform the following operations:

[0072] Upon receiving the target data packet, a HARQ-ACK response is sent to the network-side device.

[0073] or,

[0074] If the intelligent passive device receives a duplicate target data packet, it discards the duplicate target data packet.

[0075] The terminal identifier includes any one of the following:

[0076] The terminal's corresponding wireless network temporary identifier (RNTI);

[0077] The network-side device and the intelligent passive device have predefined terminal identification information; the predefined terminal identification information has a mapping relationship with the terminal's cell RNTI.

[0078] This invention also provides a system information broadcasting device, applied to network-side equipment, the device further comprising:

[0079] The first sending module sends a target data packet carrying system information to the intelligent passive device, so that the intelligent passive device can broadcast the system information based on the target data packet.

[0080] This invention also provides a network-side device, including a processor and a transceiver, wherein the transceiver receives and transmits data under the control of the processor, and the processor is configured to perform the following operations:

[0081] A target data packet carrying system information is sent to the intelligent passive device, so that the intelligent passive device can broadcast the system information based on the target data packet.

[0082] The processor is also used to perform the following operations:

[0083] The first protocol data unit (PDU) is sent to the intelligent passive device through a handshake link between the network-side device and the intelligent passive device; the first PDU includes: system information; or, the first PDU includes: system information and at least one terminal identifier.

[0084] The processor is also used to perform the following operations:

[0085] Send a third PDU constructed using the transparent PDU format to the intelligent passive device, the third PDU including system information.

[0086] The processor is also used to perform the following operations:

[0087] Send a fourth PDU carrying at least one terminal identifier to the intelligent passive device.

[0088] The processor is also used to perform the following operations:

[0089] The target data packet is sent using the Hybrid Automatic Repeat Request (HARQ) method.

[0090] or,

[0091] The target data packet is sent by repeatedly sending it multiple times.

[0092] The terminal identifier includes any one of the following:

[0093] The terminal's corresponding wireless network temporary identifier (RNTI);

[0094] The network-side device and the intelligent passive device have predefined terminal identification information; the predefined terminal identification information has a mapping relationship with the terminal's cell RNTI.

[0095] This invention also provides a communication device, including a memory, a processor, and a program stored in the memory and executable on the processor. When the processor executes the program, it implements the system information broadcasting method described above.

[0096] This invention also provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the steps in the system information broadcasting method described above.

[0097] The above-described technical solution of the present invention has at least the following beneficial effects:

[0098] In the system information broadcasting method, intelligent passive device, and network-side device of the present invention, based on the protocol stack function of the intelligent passive device, the network-side device broadcasts system information to the terminal through the intelligent passive device, thereby realizing on-demand system information broadcasting by the intelligent passive device and achieving beamforming coverage of the intelligent passive device under the control of the network-side device. Attached Figure Description

[0099] Figure 1 This is a flowchart illustrating one of the steps of the system information broadcasting method provided in an embodiment of the present invention;

[0100] Figure 2 An example diagram illustrating one method of the system information broadcasting method provided in this embodiment of the invention;

[0101] Figure 3 A PDU format example diagram illustrating one method of the system information broadcasting method provided in this embodiment of the invention;

[0102] Figure 4 An example diagram illustrating a second method of the system information broadcasting method provided in this embodiment of the invention;

[0103] Figure 5 A PDU format example diagram illustrating a second method of the system information broadcasting method provided in this embodiment of the invention;

[0104] Figure 6 This is the second flowchart illustrating the steps of the system information broadcasting method provided in this embodiment of the invention.

[0105] Figure 7 This is one of the structural schematic diagrams of the system information broadcasting device provided in an embodiment of the present invention;

[0106] Figure 8 This is a schematic diagram illustrating the structure of the intelligent passive device provided in an embodiment of the present invention.

[0107] Figure 9 This is the second schematic diagram of the structure of the system information broadcasting device provided in the embodiment of the present invention;

[0108] Figure 10 This is a schematic diagram illustrating the structure of the network-side device provided in an embodiment of the present invention. Detailed Implementation

[0109] To make the technical problems, technical solutions and advantages of the present invention clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0110] like Figure 1 As shown, this embodiment of the invention provides a system information broadcasting method, executed by an intelligent passive device, the method comprising:

[0111] Step 101: Obtain the target data packet carrying system information sent by the network-side device;

[0112] Step 102: Broadcast system information based on the target data packet.

[0113] Optionally, the target data packet can be carried or carried by a MAC PDU.

[0114] To enable intelligent passive devices to better serve as coverage assistants for wireless networks, protocol functions that enable intelligent passive device systems are defined. The protocol stack functions on intelligent passive devices are divided into two categories: intelligent passive device-UE (User Equipment, terminal) protocol stack and intelligent passive device-BS (Base Station, base station) protocol stack.

[0115] The Intelligent Passive Device (UE) protocol stack handles handshake information, connection management, and connection synchronization between the intelligent passive device and the base station. From the base station's perspective, the intelligent passive device interacts with the base station as a terminal, hence the name Intelligent Passive Device (UE).

[0116] Intelligent Passive Device - BS Protocol Stack: This stack receives measurement information from the UE and, under the control of the base station, implements beamforming for the UE, thereby enabling the UE to exchange uplink and downlink data with the base station through the intelligent passive device. This function provides air interface services to the user, hence the name Intelligent Passive Device - BS.

[0117] Optionally, the Media Access Control (MAC) layer of the intelligent passive device may include two MAC function entities or only one MAC function entity. If two MAC function entities are included, one MAC function entity has the functions of the intelligent passive device-UE protocol stack, and the other MAC function entity has the functions of the intelligent passive device-BS protocol stack. If only one MAC function entity is included, that MAC function entity has the functions of both the intelligent passive device-UE protocol stack and the intelligent passive device-BS protocol stack.

[0118] In at least one embodiment of the present invention, the system information broadcast by the intelligent passive device includes: non-customized system information, and / or, customized system information.

[0119] Non-customized system information includes: MIB (Master Information Block) and SIB1 (System Information Block 1), which are generally broadcast throughout the entire coverage area of ​​intelligent passive devices;

[0120] Customized system information includes several system information blocks from SIB2 to SIBx, which are generally system broadcasts sent on demand to a specific user or group of users.

[0121] It should be noted that, in at least one embodiment of this application, within the network-side device-intelligent passive device system, there are two methods for broadcasting system information:

[0122] Method 1: After a handshake connection is established with the intelligent passive device, system information sent by the network-side equipment is broadcast. The handshake connection between the base station and the intelligent passive device is an information exchange link to enable better service to the terminal and allow the intelligent passive device to have bezel-transmission capabilities for the UE. Because the intelligent passive device has protocol stack functionality, after the handshake with the base station, it can identify the UE and perform targeted bezel-transmission based on the UE's location information within its coverage area.

[0123] Method 2: Handshake connection without going through intelligent passive devices.

[0124] In at least one embodiment of the present invention, for method one, step 101 includes:

[0125] The device receives a first protocol data unit (PDU) sent by the network-side device through a handshake link between the network-side device and the intelligent passive device; the first PDU includes: system information; or, the first PDU includes: system information and at least one terminal identifier.

[0126] Because intelligent passive devices need to complete a handshake process with the base station, a protocol stack is required. At the same time, intelligent passive devices have autonomous beamforming capabilities, so the protocol stack of intelligent passive devices needs to perform two main functions: 1. Handshake process with the base station and synchronization maintenance function; 2. Sending appropriate beams to the designated UE according to the control information of the base station.

[0127] like Figure 2As shown, the network-side device sends the MIB or SIB x (x represents 1, 2, 3, ..., all SI blocks) to the Intelligent Passive Device - UE-MAC in the form of a MAC PDU (i.e., the first PDU) via a handshake link. The first PDU sent by the network-side device to the Intelligent Passive Device - UE-MAC includes the MIB / SIBx and UE identifiers; the UE identifiers are used to identify the target user for sending the MIB / SIBx information, and can be one UE or multiple UEs.

[0128] Optional, such as Figure 3 The diagram shows the PDU format for transmitting and receiving system information between network-side devices and intelligent passive devices, which is the PDU format of the first PDU.

[0129] The PDU Type field identifies the type of the PDU, including: MIB_PDU, SIB1_PDU, SIBx_PDU (where x is a value greater than 2), Data_PDU (i.e., the MAC PDU defined in the protocol), etc. The Length of MIB / SIBx field identifies the byte length of the MIB / SIBx.

[0130] In method one, the corresponding step 102 includes:

[0131] The first PDU is parsed, and a second PDU is constructed using the transparent PDU format; the second PDU includes: system information; or, the second PDU includes: system information and at least one terminal identifier;

[0132] Based on the second PDU, system information is broadcast.

[0133] like Figure 2 As shown, after the intelligent passive device - UE-MAC receives this type of PDU (i.e., the first PDU), it determines that it is a broadcast MAC PDU. From it, the MIB / SIBx and the UE identity identifier to be sent are parsed.

[0134] Intelligent passive device - UE-MAC according to the Transparent PDU format specified in the protocol Figure 2 The corresponding information from the MIB / SIBx is used to construct the second PDU. If UE identification information needs to be sent, this second PDU carries the UE's identification information.

[0135] like Figure 2As shown, the intelligent passive device-UE-MAC forwards the second PDU to the intelligent passive device-BS-MAC. Upon receiving the second PDU, the intelligent passive device-BS-MAC generates corresponding waveform control to broadcast system information based on the user instructions and broadcast type instructions from the intelligent passive device-UE-MAC. In other words, the intelligent passive device broadcasts system information via the air interface. This is illustrated by the protocol function analysis of the intelligent passive device-BS-MAC on the intelligent passive device. Figure 2 The data packets are broadcast in a shaped manner according to the UE Identifier carried, and the broadcast is sent for different users.

[0136] Specifically, based on the second PDU, system information broadcasting is performed, including:

[0137] If the second PDU does not include a terminal identifier, the second PDU is transmitted within the coverage area of ​​each antenna unit of the intelligent passive device.

[0138] And / or,

[0139] If the second PDU includes a terminal identifier, the system information is transmitted after beamforming according to the location of the terminal indicated by the terminal identifier.

[0140] For example, if the system information includes MIB, then within the coverage area of ​​the intelligent passive device, broadcasting is performed according to the MIB cycle within the coverage area of ​​each antenna unit; if directional coverage is required for several UEs, then beams are generated in the corresponding directions for directional transmission.

[0141] For example, if the system information includes SIB1, then within the coverage area of ​​the intelligent passive device, it is transmitted according to the SIB1 period within the coverage area of ​​each antenna element. If directional coverage is required for several UEs, then beams in the corresponding directions are generated and transmitted directionally.

[0142] For example, if the system information includes SIB2 and all SIBs after its number, it is transmitted within the coverage area of ​​the intelligent passive device after being beamformed according to the possible location of the UE.

[0143] In at least one embodiment of the present invention, for method two, step 101 includes:

[0144] The receiving network-side device uses a transparent PDU format to construct a third PDU, which includes system information.

[0145] like Figure 4As shown, the network-side device uses the Transparent PDU method to construct a MAC PDU (i.e., a third PDU), and includes the corresponding MIB / SIBx information in the third PDU. If it is not necessary to send the information to the UE, step 102 includes:

[0146] According to the third PDU, within the coverage area of ​​the intelligent passive device, the third PDU is transmitted within the coverage area of ​​each antenna unit of the intelligent passive device.

[0147] like Figure 4 As shown, if targeted transmission to the UE is required, the UE's identifier must be included. In this case, the network-side device first sends a MAC PDU (i.e., the fourth PDU) composed of the UE's identifier to the Intelligent Passive Device-BS-MAC, instructing the Intelligent Passive Device-BS-MAC to perform beamforming calculations, and then sends the third PDU of the MIB / SIBx. Alternatively, both can be sent together, as shown below. Figure 5 As shown in the figure, the MAC PDU is the third PDU.

[0148] Before broadcasting system information, the method further includes:

[0149] Receive a fourth PDU carrying at least one terminal identifier sent by a network-side device;

[0150] Accordingly, step 102 includes:

[0151] Parse the fourth PDU to determine at least one terminal identifier;

[0152] Based on the location of the terminal indicated by the terminal identifier, the third PDU is transmitted after beamforming.

[0153] For example, intelligent passive devices broadcast system information via the air interface. This is achieved through the intelligent passive device-BS-MAC protocol function analysis. Figure 5 The data packets are broadcast in a shaped manner according to the UE Identifier carried, and the broadcast is sent for different users.

[0154] In summary, in this embodiment of the application, based on the protocol stack function of the intelligent passive device, the intelligent passive device performs on-demand system information broadcasting, which can realize full broadcasting within the coverage area of ​​the intelligent passive device and beta transmission for the UE.

[0155] In at least one embodiment of the present invention, the method further includes:

[0156] Upon receiving the target data packet, a HARQ-ACK response is sent to the network-side device.

[0157] or,

[0158] If the intelligent passive device receives a duplicate target data packet, it discards the duplicate target data packet.

[0159] In other words, the target data between the network-side device and the intelligent passive device can be transmitted using HARQ or not.

[0160] When sending the target data packet using HARQ, the network-side device, when sending the message (MAC PDU), retransmits or retransmits the data packet through the HARQ process. This can be indicated by the DCI carried on the Physical Downlink Control Channel (PDCCH) regarding the time-frequency domain resources, HARQ information, modulation information, and feedback information used when sending the TB (Transport Block, data block; a data block in the MAC's HARQ process); alternatively, it can use fixed time-frequency domain resources and modulation methods without DCI indication. Upon receiving the data packet, the intelligent passive device performs ACK / NACK feedback during the HARQ process.

[0161] When the target data packet is not sent using HARQ, the network-side device directly retransmits the message (MAC PDU) multiple times. This can be done by using the DCI (Transport Block, a data block in the MAC's HARQ process) carried on the PDCCH channel to indicate the time-frequency domain resources, HARQ information, modulation information, and feedback information used when sending the TB (Transport Block); alternatively, it can use fixed time-frequency domain resources and modulation methods without DCI indication. Upon receiving this data packet, the intelligent passive device does not provide ACK / NACK feedback and discards duplicate data packets directly.

[0162] In at least one optional embodiment of the present invention, the terminal identifier (which serves as the identification of the user identity between the network-side device and the intelligent passive device) includes any one of the following:

[0163] The terminal's corresponding wireless network temporary identifier (RNTI), such as C-RNTI or other types of RNTI; is generally 16 bits in length.

[0164] The network-side device and the intelligent passive device share predefined terminal identification information; this predefined terminal identification information is mapped to the terminal's cell RNTI. It can be 8 bits, or shorter (e.g., 4 bits), and can be a short, local ID. This short, local UE Identifier needs to establish a mapping relationship with the UE's C-RNTI during the handshake between the base station and the intelligent passive device. The base station and the intelligent passive device can retrieve the UE's C-RNTI through this short ID.

[0165] In summary, in the system information broadcasting method, intelligent passive device, and network-side device of the embodiments of the present invention, based on the protocol stack function of the intelligent passive device, the network-side device broadcasts system information to the terminal through the intelligent passive device, thereby realizing on-demand system information broadcasting by the intelligent passive device and achieving beamforming coverage of the intelligent passive device under the control of the network-side device.

[0166] like Figure 6 As shown, this embodiment of the invention also provides a system information broadcasting method, executed by a network-side device, the method comprising:

[0167] Step 601: Send a target data packet carrying system information to the intelligent passive device so that the intelligent passive device can broadcast the system information based on the target data packet.

[0168] Optionally, the target data packet can be carried or carried by a MAC PDU.

[0169] In at least one embodiment of the present invention, the system information broadcast by the intelligent passive device includes: non-customized system information, and / or, customized system information.

[0170] Non-customized system information includes: MIB (Master Information Block) and SIB1 (System Information Block 1), which are generally broadcast in the system within the full coverage area of ​​intelligent passive devices;

[0171] Customized system information includes several system information blocks from SIB2 to SIBx, which are generally system broadcasts sent on demand to a specific user or group of users.

[0172] It should be noted that, in at least one embodiment of this application, within the network-side device-intelligent passive device system, there are two methods for broadcasting system information:

[0173] Method 1: After a handshake connection is established with the intelligent passive device, system information sent by the network-side equipment is broadcast. The handshake connection between the base station and the intelligent passive device is an information exchange link to enable better service to the terminal and allow the intelligent passive device to have bezel-transmission capabilities for the UE. Because the intelligent passive device has protocol stack functionality, after the handshake with the base station, it can identify the UE and perform targeted bezel-transmission based on the UE's location information within its coverage area.

[0174] Method 2: Handshake connection without going through intelligent passive devices.

[0175] For method one, step 601 includes:

[0176] The first protocol data unit (PDU) is sent to the intelligent passive device through a handshake link between the network-side device and the intelligent passive device; the first PDU includes: system information; or, the first PDU includes: system information and at least one terminal identifier.

[0177] Because intelligent passive devices need to complete a handshake process with the base station, a protocol stack is required. At the same time, intelligent passive devices have autonomous beamforming capabilities, so the protocol stack of intelligent passive devices needs to perform two main functions: 1. Handshake process with the base station and synchronization maintenance function; 2. Sending appropriate beams to the designated UE according to the control information of the base station.

[0178] like Figure 2 As shown, the network-side device sends the MIB or SIB x (x represents 1, 2, 3, ..., all SI blocks) to the Intelligent Passive Device - UE-MAC in the form of a MAC PDU (i.e., the first PDU) via a handshake link. The first PDU sent by the network-side device to the Intelligent Passive Device - UE-MAC includes the MIB / SIBx and UE identifiers; the UE identifiers are used to identify the target user for sending the MIB / SIBx information, and can be one UE or multiple UEs.

[0179] For method two, step 601 includes:

[0180] Send a third PDU constructed using the transparent PDU format to the intelligent passive device, the third PDU including system information.

[0181] like Figure 4 As shown, the network-side device uses the Transparent PDU method to construct the MAC PDU (i.e., the third PDU) and includes the corresponding MIB / SIBx information in the third PDU.

[0182] like Figure 4 As shown, if targeted transmission to the UE is required, the UE's identifier must be included. In this case, the network-side device first sends a MAC PDU (i.e., the fourth PDU) composed of the UE's identifier to the Intelligent Passive Device-BS-MAC, instructing the Intelligent Passive Device-BS-MAC to perform beamforming calculations, and then sends the third PDU of the MIB / SIBx. Alternatively, both can be sent together, as shown below. Figure 5 As shown in the figure, the MAC PDU is the third PDU. Therefore, the method further includes:

[0183] Send a fourth PDU carrying at least one terminal identifier to the intelligent passive device.

[0184] In at least one optional embodiment of the present invention, the target data between the network-side device and the intelligent passive device includes data that can be sent using HARQ or not; that is, sending a target data packet carrying system information to the intelligent passive device includes:

[0185] The target data packet is sent using the Hybrid Automatic Repeat Request (HARQ) method.

[0186] or,

[0187] The target data packet is sent by repeatedly sending it multiple times.

[0188] When sending the target data packet using HARQ, the network-side device, when sending the message (MAC PDU), retransmits or retransmits the data packet through the HARQ process. This can be indicated by the DCI carried on the Physical Downlink Control Channel (PDCCH) regarding the time-frequency domain resources, HARQ information, modulation information, and feedback information used when sending the TB (Transport Block, data block; a data block in the MAC's HARQ process); alternatively, it can use fixed time-frequency domain resources and modulation methods without DCI indication. Upon receiving the data packet, the intelligent passive device performs ACK / NACK feedback during the HARQ process.

[0189] When the target data packet is not sent using HARQ, the network-side device directly retransmits the message (MAC PDU) multiple times. This can be done by using the DCI (Transport Block, a data block in the MAC's HARQ process) carried on the PDCCH channel to indicate the time-frequency domain resources, HARQ information, modulation information, and feedback information used when sending the TB (Transport Block); alternatively, it can use fixed time-frequency domain resources and modulation methods without DCI indication. Upon receiving this data packet, the intelligent passive device does not provide ACK / NACK feedback and discards duplicate data packets directly.

[0190] In at least one optional embodiment of the present invention, the terminal identifier (which serves as the identification of the user identity between the network-side device and the intelligent passive device) includes any one of the following:

[0191] The terminal's corresponding wireless network temporary identifier (RNTI), such as C-RNTI or other types of RNTI; is generally 16 bits in length.

[0192] The network-side device and the intelligent passive device share predefined terminal identification information; this predefined terminal identification information is mapped to the terminal's cell RNTI. It can be 8 bits, or shorter (e.g., 4 bits), and can be a short, local ID. This short, local UE Identifier needs to establish a mapping relationship with the UE's C-RNTI during the handshake between the base station and the intelligent passive device. The base station and the intelligent passive device can retrieve the UE's C-RNTI through this short ID.

[0193] In summary, in this embodiment of the invention, based on the protocol stack function of the intelligent passive device, the network-side device broadcasts system information to the terminal through the intelligent passive device, thereby enabling the intelligent passive device to broadcast system information on demand and to achieve beamforming coverage of the intelligent passive device under the control of the network-side device.

[0194] like Figure 7 As shown, this embodiment of the invention also provides a system information broadcasting device, applied to intelligent passive devices, the device comprising:

[0195] The first acquisition module 701 is used to acquire target data packets carrying system information sent by network-side devices;

[0196] The broadcast module 702 is used to broadcast system information based on the target data packet.

[0197] As an optional embodiment, the first acquisition module includes:

[0198] The first acquisition submodule is configured to receive a first protocol data unit (PDU) sent by the network-side device through a handshake link between the network-side device and the intelligent passive device; the first PDU includes: system information; or, the first PDU includes: system information and at least one terminal identifier.

[0199] As an optional embodiment, the broadcast module includes:

[0200] The first component submodule is used to parse the first PDU and construct a second PDU using the transparent PDU format; the second PDU includes: system information; or, the second PDU includes: system information and at least one terminal identifier;

[0201] The first broadcast submodule is used to broadcast system information based on the second PDU.

[0202] As an optional embodiment, the first broadcast submodule includes:

[0203] The first broadcast unit is configured to transmit the second PDU within the coverage area of ​​each antenna unit of the intelligent passive device, if the second PDU does not include a terminal identifier.

[0204] And / or,

[0205] The second broadcast unit is used to transmit the system information after beamforming according to the location of the terminal indicated by the terminal identifier if the second PDU includes a terminal identifier.

[0206] As an optional embodiment, the first acquisition module includes:

[0207] The second acquisition submodule is used to receive a third PDU constructed by the network-side device using the transparent PDU format, wherein the third PDU includes system information.

[0208] As an optional embodiment, the broadcast module includes:

[0209] The second broadcast submodule is used to transmit the third PDU within the coverage area of ​​the intelligent passive device, and within the coverage area of ​​each antenna unit of the intelligent passive device, according to the third PDU.

[0210] As an optional embodiment, the apparatus further includes:

[0211] The receiving module is used to receive a fourth PDU carrying at least one terminal identifier sent by a network-side device;

[0212] The broadcast OK includes:

[0213] A determination submodule is used to parse the fourth PDU and determine at least one terminal identifier;

[0214] The third broadcast submodule is used to perform beamforming and transmit the third PDU according to the location of the terminal indicated by the terminal identifier.

[0215] As an optional embodiment, the apparatus further includes:

[0216] The transmission processing module is used to send a Hybrid Automatic Repeat Request Response (HARQ-ACK) feedback to the network-side device after receiving the target data packet;

[0217] Alternatively, it can be used to discard duplicate target data packets if the intelligent passive device receives duplicate target data packets.

[0218] As an optional embodiment, the terminal identifier includes any one of the following:

[0219] The terminal's corresponding wireless network temporary identifier (RNTI);

[0220] The network-side device and the intelligent passive device have predefined terminal identification information; the predefined terminal identification information has a mapping relationship with the terminal's cell RNTI.

[0221] In this embodiment of the invention, based on the protocol stack function of the intelligent passive device, the network-side device broadcasts system information to the terminal through the intelligent passive device, thereby enabling the intelligent passive device to broadcast system information on demand and to achieve beamforming coverage of the intelligent passive device under the control of the network-side device.

[0222] It should be noted that the system information broadcasting device provided in the embodiments of the present invention is a device capable of executing the above-described system information broadcasting method. Therefore, all embodiments of the above-described system information broadcasting method are applicable to this device and can achieve the same or similar beneficial effects.

[0223] like Figure 8 As shown, this embodiment of the invention also provides an intelligent passive device, including a processor 800 and a transceiver 810. The transceiver 810 receives and transmits data under the control of the processor 800, and the processor 800 is used to perform the following operations:

[0224] Acquire target data packets carrying system information sent by network-side devices;

[0225] Based on the target data packet, system information is broadcast.

[0226] As an optional embodiment, the processor 800 is also configured to perform the following operations:

[0227] The device receives a first protocol data unit (PDU) sent by the network-side device through a handshake link between the network-side device and the intelligent passive device; the first PDU includes: system information; or, the first PDU includes: system information and at least one terminal identifier.

[0228] As an optional embodiment, the processor 800 is also configured to perform the following operations:

[0229] The first PDU is parsed, and a second PDU is constructed using the transparent PDU format; the second PDU includes: system information; or, the second PDU includes: system information and at least one terminal identifier;

[0230] Based on the second PDU, system information is broadcast.

[0231] As an optional embodiment, the processor 800 is also configured to perform the following operations:

[0232] If the second PDU does not include a terminal identifier, the second PDU is transmitted within the coverage area of ​​each antenna unit of the intelligent passive device.

[0233] And / or,

[0234] If the second PDU includes a terminal identifier, the system information is transmitted after beamforming according to the location of the terminal indicated by the terminal identifier.

[0235] As an optional embodiment, the processor 800 is also configured to perform the following operations:

[0236] The receiving network-side device uses a transparent PDU format to construct a third PDU, which includes system information.

[0237] As an optional embodiment, the processor 800 is also configured to perform the following operations:

[0238] According to the third PDU, within the coverage area of ​​the intelligent passive device, the third PDU is transmitted within the coverage area of ​​each antenna unit of the intelligent passive device.

[0239] As an optional embodiment, the processor 800 is also configured to perform the following operations:

[0240] Receive a fourth PDU carrying at least one terminal identifier sent by a network-side device;

[0241] Parse the fourth PDU to determine at least one terminal identifier;

[0242] Based on the location of the terminal indicated by the terminal identifier, the third PDU is transmitted after beamforming.

[0243] As an optional embodiment, the processor 800 is also configured to perform the following operations:

[0244] Upon receiving the target data packet, a HARQ-ACK response is sent to the network-side device.

[0245] or,

[0246] If the intelligent passive device receives a duplicate target data packet, it discards the duplicate target data packet.

[0247] As an optional embodiment, the terminal identifier includes any one of the following:

[0248] The terminal's corresponding wireless network temporary identifier (RNTI);

[0249] The network-side device and the intelligent passive device have predefined terminal identification information; the predefined terminal identification information has a mapping relationship with the terminal's cell RNTI.

[0250] In this embodiment of the invention, based on the protocol stack function of the intelligent passive device, the network-side device broadcasts system information to the terminal through the intelligent passive device, thereby enabling the intelligent passive device to broadcast system information on demand and to achieve beamforming coverage of the intelligent passive device under the control of the network-side device.

[0251] It should be noted that the intelligent passive device provided in the embodiments of the present invention is an intelligent passive device capable of executing the above-described system information broadcasting method. Therefore, all embodiments of the above-described system information broadcasting method are applicable to the intelligent passive device and can achieve the same or similar beneficial effects.

[0252] like Figure 9 As shown, this embodiment of the invention also provides a system information broadcasting device, applied to network-side equipment, the device further comprising:

[0253] The first sending module 901 sends a target data packet carrying system information to the intelligent passive device, so that the intelligent passive device can broadcast the system information based on the target data packet.

[0254] As an optional embodiment, the first sending module includes:

[0255] The first sending submodule is used to send a first protocol data unit (PDU) to the intelligent passive device through a handshake link between the network-side device and the intelligent passive device; the first PDU includes: system information; or, the first PDU includes: system information and at least one terminal identifier.

[0256] As an optional embodiment, the first sending module includes:

[0257] The second sending submodule is used to send a third PDU constructed using the transparent PDU format to the intelligent passive device, the third PDU including system information.

[0258] As an optional embodiment, the apparatus further includes:

[0259] The second sending module is used to send a fourth PDU carrying at least one terminal identifier to the intelligent passive device.

[0260] As an optional embodiment, the first sending module includes:

[0261] The third sending submodule is used to send the target data packet using the Hybrid Automatic Repeat Request (HARQ) method.

[0262] Alternatively, it can be used to send the target data packet by repeatedly sending it multiple times.

[0263] As an optional embodiment, the terminal identifier includes any one of the following:

[0264] The terminal's corresponding wireless network temporary identifier (RNTI);

[0265] The network-side device and the intelligent passive device have predefined terminal identification information; the predefined terminal identification information has a mapping relationship with the terminal's cell RNTI.

[0266] In this embodiment of the invention, based on the protocol stack function of the intelligent passive device, the network-side device broadcasts system information to the terminal through the intelligent passive device, thereby enabling the intelligent passive device to broadcast system information on demand and to achieve beamforming coverage of the intelligent passive device under the control of the network-side device.

[0267] It should be noted that the system information broadcasting device provided in the embodiments of the present invention is a device capable of executing the above-described system information broadcasting method. Therefore, all embodiments of the above-described system information broadcasting method are applicable to this device and can achieve the same or similar beneficial effects.

[0268] like Figure 10 As shown, this embodiment of the invention also provides a network-side device, including a processor 100 and a transceiver 110. The transceiver 110 receives and transmits data under the control of the processor 100, and the processor 100 is used to perform the following operations:

[0269] A target data packet carrying system information is sent to the intelligent passive device, so that the intelligent passive device can broadcast the system information based on the target data packet.

[0270] As an optional embodiment, the processor is also configured to perform the following operations:

[0271] The first protocol data unit (PDU) is sent to the intelligent passive device through a handshake link between the network-side device and the intelligent passive device; the first PDU includes: system information; or, the first PDU includes: system information and at least one terminal identifier.

[0272] As an optional embodiment, the processor is also configured to perform the following operations:

[0273] Send a third PDU constructed using the transparent PDU format to the intelligent passive device, the third PDU including system information.

[0274] As an optional embodiment, the processor is also configured to perform the following operations:

[0275] Send a fourth PDU carrying at least one terminal identifier to the intelligent passive device.

[0276] As an optional embodiment, the processor is also configured to perform the following operations:

[0277] The target data packet is sent using the Hybrid Automatic Repeat Request (HARQ) method.

[0278] or,

[0279] The target data packet is sent by repeatedly sending it multiple times.

[0280] As an optional embodiment, the terminal identifier includes any one of the following:

[0281] The terminal's corresponding wireless network temporary identifier (RNTI);

[0282] The network-side device and the intelligent passive device have predefined terminal identification information; the predefined terminal identification information has a mapping relationship with the terminal's cell RNTI.

[0283] In this embodiment of the invention, based on the protocol stack function of the intelligent passive device, the network-side device broadcasts system information to the terminal through the intelligent passive device, thereby enabling the intelligent passive device to broadcast system information on demand and to achieve beamforming coverage of the intelligent passive device under the control of the network-side device.

[0284] It should be noted that the network-side device provided in the embodiments of the present invention is a network-side device capable of executing the above-described system information broadcasting method. Therefore, all embodiments of the above-described system information broadcasting method are applicable to this network-side device and can achieve the same or similar beneficial effects.

[0285] This invention also provides a communication device, which is an intelligent passive device or a network-side device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the various processes in the system information broadcasting method embodiments described above and achieves the same technical effect. To avoid repetition, it will not be described again here.

[0286] This invention also provides a computer-readable storage medium storing a computer program. When executed by a processor, this program implements the various processes described in the system information broadcasting method embodiments above, achieving the same technical effects. To avoid repetition, it will not be described again here. The computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0287] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-readable storage media (including, but not limited to, disk storage and optical storage) containing computer-usable program code.

[0288] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 A device for one or more processes and / or the functions specified in one or more boxes.

[0289] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce a paper article including an instruction means, the instruction means being implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0290] These computer program instructions can also be loaded onto a computer or other programmable data processing equipment, causing the computer or other programmable equipment to perform a series of operational steps to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0291] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A system information broadcasting method, characterized in that, Performed by an intelligent passive device, the method includes: Acquire target data packets carrying system information sent by network-side devices; Based on the target data packet, system information is broadcast; The acquisition of the target data packet carrying system information sent by the network-side device includes: The device receives a first Protocol Data Unit (PDU) sent by a network-side device through a handshake link between the network-side device and the intelligent passive device; the first PDU includes: system information; or, the first PDU includes: system information and at least one terminal identifier. The step of broadcasting system information based on the target data packet includes: The first PDU is parsed, and a second PDU is constructed using the transparent PDU format; the second PDU includes: system information; or, the second PDU includes: system information and at least one terminal identifier; Based on the second PDU, system information is broadcast; wherein, the broadcasting of system information based on the second PDU includes: If the second PDU does not include a terminal identifier, the second PDU is transmitted within the coverage area of ​​each antenna unit of the intelligent passive device. And / or, If the second PDU includes a terminal identifier, the system information is transmitted after beamforming according to the location of the terminal indicated by the terminal identifier; Alternatively, the acquisition of the target data packet carrying system information sent by the network-side device includes: The network-side device receives a third PDU constructed using the transparent PDU format, the third PDU including system information; The method further includes: receiving a fourth PDU carrying at least one terminal identifier sent by a network-side device; The step of broadcasting system information based on the target data packet includes: Parse the fourth PDU to determine at least one terminal identifier; Based on the location of the terminal indicated by the terminal identifier, the third PDU is transmitted after beamforming.

2. The method according to claim 1, characterized in that, The method further includes: Upon receiving the target data packet, a HARQ-ACK response is sent to the network-side device. or, If the intelligent passive device receives a duplicate target data packet, it discards the duplicate target data packet.

3. The method according to claim 1 or 2, characterized in that, The terminal identifier includes any one of the following: The terminal's corresponding wireless network temporary identifier (RNTI); The network-side device and the intelligent passive device have predefined terminal identification information; the predefined terminal identification information has a mapping relationship with the terminal's cell RNTI.

4. A system information broadcasting device, characterized in that, The device is applied to intelligent passive devices and includes: The first acquisition module is used to acquire target data packets carrying system information sent by network-side devices; The broadcast module is used to broadcast system information based on the target data packet; The first acquisition module is further configured to: receive a first protocol data unit (PDU) sent by the network-side device through a handshake link between the network-side device and the intelligent passive device; the first PDU includes system information; or, the first PDU includes system information and at least one terminal identifier; the broadcast module is further configured to: parse the first PDU and construct a second PDU using a transparent PDU format; the second PDU includes system information; or, the second PDU includes system information and at least one terminal identifier; if the second PDU does not include a terminal identifier, transmit the second PDU within the coverage area of ​​each antenna unit of the intelligent passive device within the coverage area of ​​the intelligent passive device; and / or, if the second PDU includes a terminal identifier, transmit the system information after beamforming according to the location of the terminal indicated by the terminal identifier; Alternatively, the first acquisition module is further configured to: receive a third PDU constructed by the network-side device using a transparent PDU format, the third PDU including system information; the device further includes: a receiving module, configured to receive a fourth PDU carrying at least one terminal identifier sent by the network-side device; the broadcast module is further configured to: parse the fourth PDU to determine at least one terminal identifier; and, based on the location of the terminal indicated by the terminal identifier, perform beamforming and then send the third PDU.

5. An intelligent passive device, comprising a processor and a transceiver, wherein the transceiver receives and transmits data under the control of the processor, characterized in that, The processor is used to perform the following operations: Acquire target data packets carrying system information sent by network-side devices; Based on the target data packet, system information is broadcast; The processor is also used to perform the following operations: The device receives a first Protocol Data Unit (PDU) sent by a network-side device through a handshake link between the network-side device and the intelligent passive device; the first PDU includes: system information; or, the first PDU includes: system information and at least one terminal identifier. The first PDU is parsed, and a second PDU is constructed using the transparent PDU format; the second PDU includes: system information; or, the second PDU includes: system information and at least one terminal identifier; If the second PDU does not include a terminal identifier, the second PDU is transmitted within the coverage area of ​​each antenna unit of the intelligent passive device; and / or, if the second PDU includes a terminal identifier, the system information is transmitted after beamforming according to the location of the terminal indicated by the terminal identifier. Alternatively, the processor may also be configured to perform the following operations: The network-side device receives a third PDU constructed using the transparent PDU format, the third PDU including system information; Receive a fourth PDU carrying at least one terminal identifier sent by a network-side device; Parse the fourth PDU to determine at least one terminal identifier; Based on the location of the terminal indicated by the terminal identifier, the third PDU is transmitted after beamforming.

6. A communication device, comprising a memory, a processor, and a program stored in the memory and executable on the processor; characterized in that, When the processor executes the program, it implements the system information broadcasting method as described in any one of claims 1-3.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the steps of the system information broadcasting method as described in any one of claims 1-3.

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