Uplink transmission method and apparatus, storage medium, and electronic device

Abstract

The present disclosure belongs to the technical field of mobile communication, and relates to an uplink transmission method and device, a storage medium and an electronic device. The method comprises: a base station generating first uplink channel state information, a smart repeater generating second uplink channel state information, and the base station generating third uplink channel state information to obtain complete uplink channel state information; first user equipment and second user equipment are configured for uplink transmission to obtain first uplink configuration information, and / or the second user equipment is configured for uplink transmission to obtain second uplink configuration information, and the smart repeater is configured for uplink transmission to obtain third uplink configuration information, so that the first user equipment and the second user equipment transmit uplink data to the base station, and / or the second user equipment transmits uplink data to the base station. The present disclosure obtains complete uplink channel state information when the smart repeater is deployed to realize uplink transmission.

Description

Technical Field

[0001] This disclosure relates to the field of mobile communication technology, and in particular to an uplink transmission method and uplink transmission device, a computer-readable storage medium, and an electronic device. Background Technology

[0002] Repeaters are common devices used in wireless communication systems to extend coverage, and have been applied from the 2G (2-Generation wireless telephone technology) era to the 5G (5th Generation Mobile Communication Technology) era. Currently, the main function of radio frequency repeaters is to amplify signals; they do not perform any signal analysis.

[0003] On the one hand, since wireless repeaters only amplify signals, they also amplify noise and interference signals along with useful signals. On the other hand, in order to improve the spatial freedom of wireless signal transmission and enhance the spectral efficiency and channel capacity of the wireless access network, LTE (Long Term Evolution) has proposed multiple-input multiple-output (MIMO) technology. In the deployment scenario of smart repeaters, the current 3GPP (3rd Generation Partnership Project) specifications face the following problems when supporting the above requirements: First, the base station cannot obtain complete uplink channel state information between the terminal and the base station; second, the base station cannot issue uplink MU-MIMO (Multi-User Multiple-Input Multiple-Output) configurations to the terminal; third, smart repeaters cannot assist in realizing uplink MU-MIMO transmission.

[0004] Therefore, there is an urgent need in this field to develop a new uplink transmission method and device.

[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0006] The purpose of this disclosure is to provide an uplink transmission method, uplink transmission device, computer-readable storage medium, and electronic device, thereby overcoming, to at least a certain extent, the technical problem that complete uplink channel state information cannot be obtained for uplink MU-MIMO transmission in scenarios where repeaters are deployed due to limitations in related technologies.

[0007] Other features and advantages of this disclosure will become apparent from the following detailed description, or may be learned in part from practice of this disclosure.

[0008] According to a first aspect of the present invention, an uplink transmission method is provided, applied to beam management, wherein the beam management simultaneously considers beam management of an access link and beam management of a backhaul link, the beam management of the access link includes dynamic beam management of the access link, the beam management of the backhaul link includes dynamic beam management of the backhaul link, the access link is a link between a smart repeater and a second user equipment, and the backhaul link is a link between a base station and a smart repeater, the method comprising:

[0009] The base station generates first uplink channel state information between the first user equipment and the base station; the smart repeater generates second uplink channel state information between the smart repeater and the second user equipment; and the base station generates third uplink channel state information between the base station and the smart repeater, so as to obtain complete uplink channel state information between the base station and the second user equipment based on the second uplink channel state information and the third uplink channel state information; wherein, the first user equipment is outside the coverage area of ​​the smart repeater, and the second user equipment is within the coverage area of ​​the smart repeater.

[0010] The intelligent repeater determines the second user equipment that meets the uplink transmission conditions based on the second uplink channel state information, and generates a physical uplink control channel message scrambled with the intelligent repeater wireless network temporary identifier and sends it to the base station; wherein, the physical uplink control channel message scrambled with the intelligent repeater wireless network temporary identifier includes an uplink control information message, the uplink control information message includes: a terminal identifier and an uplink multiple user multiple inputs and multiple outputs indication, the terminal identifier uniquely identifies the second user equipment, and the uplink multiple user multiple inputs and multiple outputs indication suggests configuring uplink multiple user multiple inputs and multiple outputs for the involved second user equipment;

[0011] The base station performs uplink transmission configuration on the first user equipment and the second user equipment meeting the uplink transmission conditions based on the first uplink channel state information and the complete uplink channel state information to obtain first uplink configuration information. The base station performs uplink transmission configuration on the intelligent repeater to obtain third uplink configuration information. The uplink transmission configuration is beam management configuration; and / or

[0012] The base station performs uplink transmission configuration on the second user equipment that meets the uplink transmission conditions based on the complete uplink channel state information to obtain second uplink configuration information, and the base station performs uplink transmission configuration on the smart repeater to obtain third uplink configuration information, wherein the uplink transmission configuration is beam management configuration.

[0013] The first user equipment transmits uplink data to the base station according to the first uplink configuration information, and the second user equipment that meets the uplink transmission conditions transmits uplink data according to the first uplink configuration information and the intelligent repeater transmits uplink data according to the third uplink configuration information, and / or the second user equipment that meets the uplink transmission conditions transmits uplink data to the base station according to the second uplink configuration information and the intelligent repeater transmits uplink data according to the third uplink configuration information.

[0014] In an exemplary embodiment of the present invention, the base station generates first uplink channel state information between the first user equipment and the base station, the intelligent repeater generates second uplink channel state information between the intelligent repeater and the second user equipment, and the base station generates third uplink channel state information between the base station and the intelligent repeater, so as to obtain complete uplink channel state information between the base station and the second user equipment based on the second uplink channel state information and the third uplink channel state information, including:

[0015] The base station configures uplink channel measurement configuration information for the first user equipment and the second user equipment via radio resource control signaling based on the terminal capability information of the first user equipment and the second user equipment, and sends the uplink channel measurement configuration information to the first user equipment and the second user equipment via radio resource control messages. The configuration of the uplink channel measurement configuration information includes a transmission configuration, which is an enumeration type, including a codebook and a non-codebook. The codebook indicates that the first user equipment and the second user equipment use precoded transmission based on the codebook, and the non-codebook indicates that the first user equipment and the second user equipment indicate that they use precoded transmission based on the non-codebook, including the txConfig field in the Physical Uplink Shared Channel Configuration in TS 38.331.

[0016] The uplink channel measurement configuration information includes resource configuration information for uplink reference signals used for uplink channel state information measurement and uplink channel state information reporting configuration information.

[0017] The radio resource control message includes the terminal identifier and uplink bandwidth configuration information;

[0018] The terminal identifier uniquely identifies a first user equipment or a second user equipment, including a temporary identifier for the cell wireless network;

[0019] The uplink bandwidth configuration information includes the probe reference signal configuration, and further includes a list of additions and releases of the probe reference signal resource set.

[0020] The list for adding and releasing the detection reference signal resource set includes the detection reference signal resource set and the detection reference signal resources.

[0021] The detection reference signal resource set includes a detection reference signal resource set identifier and resource type. The resource type includes three types: aperiodic, semi-static, and periodic. Among them, semi-static and periodic indicate the period and bias of the detection reference signal.

[0022] The probe reference signal resource includes a probe reference signal resource identifier, resource mapping, frequency domain location, and resource type. The resource mapping includes a start position and number of symbols. The frequency domain location includes frequency domain offset and frequency hopping. The resource type includes three types: aperiodic, semi-static, and periodic. Semi-static and periodic indicate the period and offset of the probe reference signal.

[0023] The first user equipment sends an uplink sounding reference signal to the base station according to the uplink channel measurement configuration information, so that the base station generates first uplink channel state information;

[0024] The second user equipment sends a probe reference signal to the smart repeater on the corresponding time-frequency resources according to the uplink channel measurement configuration information, so that the smart repeater generates second uplink channel state information and generates a physical uplink control channel message scrambled with the terminal identifier and the cell radio network temporary identifier, so as to send the physical uplink control channel message scrambled with the cell radio network temporary identifier and the amplified probe reference signal message to the base station. The base station generates third uplink channel state information between the smart repeater and the base station according to the amplified probe reference signal message, so as to obtain complete uplink channel state information between the base station and the second user equipment according to the second uplink channel state information and the third uplink channel state information.

[0025] The physical uplink control channel message scrambled with the temporary identifier of the cell wireless network includes: terminal identifier, terminal location information, channel quality indicator, recommended precoding matrix indicator, layer indicator, and rank indicator. The terminal identifier uniquely identifies the second user equipment, and the recommended precoding matrix indicator is a precoding matrix selected from the codebook.

[0026] In an exemplary embodiment of the present invention, before the base station configures uplink channel measurement configuration information for the first user equipment and the second user equipment based on the terminal capability information of the first user equipment and the second user equipment, the method further includes:

[0027] The base station acquires the intelligent repeater capability information of the intelligent repeater and sends capability acquisition request information to the first user equipment and the second user equipment; wherein, the intelligent repeater capability information includes the location information, beam configuration information and multi-antenna transmission capability information of the intelligent repeater;

[0028] The first user equipment and the second user equipment return terminal capability information to the base station according to the capability acquisition request information; wherein, the terminal capability information includes a terminal radio access capability support list, the terminal radio access capability support list includes an uplink feature set supported by a specific carrier, the uplink feature set supported by the specific carrier indicates the list of uplink capabilities supported by the first user equipment and the second user equipment for the corresponding frequency band, and the uplink feature set supported by the specific carrier includes the physical uplink shared channel's support capability for codebook-based multiple input multiple output and the physical uplink shared channel's support capability for non-codebook multiple input multiple output;

[0029] The physical uplink shared channel's support capability for codebook-based multiple input multiple output includes the maximum number of multiple input multiple output layers supported by the physical uplink shared channel and the number of supported probe reference signal resources. The maximum number of multiple input multiple output layers supported by the physical uplink shared channel indicates the number of uplink multiple input multiple output layers, and the number of supported probe reference signal resources is an integer of 1 or 2.

[0030] The physical uplink shared channel's support capability for non-codebook multiple-input multiple-output (MIMO) indicates the number of uplink MIMO layers.

[0031] In an exemplary embodiment of the present invention, the base station performs uplink transmission configuration on the first user equipment and the second user equipment that meets the uplink transmission conditions based on the first uplink channel state information and the complete uplink channel state information to obtain first uplink configuration information, including:

[0032] Based on the intelligent repeater capability information and the terminal capability information, the base station performs uplink transmission configuration on the first user equipment and the second user equipment that meets the uplink transmission conditions according to the first uplink channel state information and the complete uplink channel state information to obtain first uplink configuration information; wherein, the uplink transmission configuration includes the number of uplink transmission layers and the uplink precoding matrix;

[0033] The base station performs uplink transmission configuration on the second user equipment that meets the uplink transmission conditions based on the complete uplink channel state information to obtain second uplink configuration information, including:

[0034] Based on the intelligent repeater capability information, the base station performs uplink transmission configuration on the second user equipment that meets the uplink transmission conditions according to the complete uplink channel state information to obtain second uplink configuration information; wherein, the uplink transmission configuration includes the number of uplink transmission layers and the uplink precoding matrix.

[0035] In an exemplary embodiment of the present invention, the first user equipment transmits uplink data to the base station according to the first uplink configuration information, and the second user equipment that meets the uplink transmission conditions transmits uplink data according to the first uplink configuration information and the intelligent repeater transmits uplink data according to the third uplink configuration information, and / or the second user equipment that meets the uplink transmission conditions transmits uplink data to the base station according to the second uplink configuration information and the intelligent repeater transmits uplink data according to the third uplink configuration information, including:

[0036] The base station sends the first uplink configuration information to the first user equipment and the smart repeater through a physical downlink control channel message scrambled with a cell radio network temporary identifier, sends the second uplink configuration information to the smart repeater through a physical downlink control channel message scrambled with a cell radio network temporary identifier, and sends the third uplink configuration information to the smart repeater through a physical downlink control channel message scrambled with a smart repeater radio network temporary identifier.

[0037] The physical downlink control channel message scrambled with the temporary identifier of the cell wireless network includes downlink control information messages, which include precoding information and transmission layer number, sounding reference signal resource indication, antenna port and physical uplink shared channel resource allocation and corresponding modulation and coding schemes;

[0038] The physical downlink control channel message scrambled by the temporary identifier of the smart repeater wireless network includes a downlink control information message. The downlink control information message includes a terminal identifier and an uplink multi-user multiple-input multiple-output precoding matrix. The terminal identifier uniquely identifies the second user equipment through the temporary identifier of the cell wireless network, indicating the second user equipment that needs to perform uplink multi-user multiple-input multiple-output transmission.

[0039] The intelligent repeater saves the third uplink configuration information, and amplifies the first uplink configuration information and the second uplink configuration information before sending them to the second user equipment that meets the uplink transmission conditions;

[0040] The first user equipment performs uplink configuration based on the first uplink configuration information, and the second user equipment that meets the uplink transmission conditions performs uplink data pre-encoding and transmission based on the first uplink configuration information and the intelligent repeater performs uplink data pre-encoding and transmission based on the third uplink configuration information to send the uplink data to the base station, and / or the second user equipment that meets the uplink transmission conditions performs uplink data pre-encoding and transmission based on the second uplink configuration information and the intelligent repeater performs uplink data pre-encoding and transmission based on the third uplink configuration information to send the uplink data to the base station.

[0041] In an exemplary embodiment of the present invention, the first user equipment performs pre-coding transmission of uplink data according to the first uplink configuration information, and the second user equipment that meets the uplink transmission conditions performs pre-coding transmission of uplink data according to the first uplink configuration information and the intelligent repeater performs pre-coding transmission of uplink data according to the third uplink configuration information to send the uplink data to the base station, and / or the second user equipment that meets the uplink transmission conditions performs pre-coding transmission of uplink data according to the second uplink configuration information and the intelligent repeater performs pre-coding transmission of uplink data according to the third uplink configuration information to send the uplink data to the base station, including:

[0042] The first user equipment (UE) precodes and transmits uplink data according to the first uplink configuration information to send the uplink data to the base station; and the second UE, which meets the uplink transmission conditions, precodes and transmits uplink data according to the first uplink configuration information to send the uplink data to the intelligent repeater; the intelligent repeater identifies the second UE involved in the uplink data and meets the uplink transmission conditions, and sends the uplink data to the base station according to the third uplink configuration information; and / or

[0043] The second user equipment that meets the uplink transmission conditions precodes and transmits the uplink data according to the second uplink configuration information to send the uplink data to the smart repeater. The smart repeater determines the second user equipment involved in the uplink data that meets the uplink transmission conditions and sends the uplink data to the base station according to the third uplink configuration information.

[0044] In one exemplary embodiment of the present invention, the method further includes:

[0045] When the intelligent repeater determines that the uplink data involves a second user equipment that does not meet the uplink transmission conditions, it selects uplink MIMO transmission precoding based on the second uplink channel state information and then sends the uplink data to the base station; or

[0046] When the intelligent repeater determines that the uplink data involves a second user equipment that does not meet the uplink transmission conditions, it amplifies the uplink data and sends the amplified uplink data to the base station.

[0047] According to a second aspect of the present invention, an uplink transmission apparatus is provided for beam management, wherein the beam management simultaneously considers beam management of an access link and beam management of a backhaul link, the beam management of the access link includes dynamic beam management of the access link, the beam management of the backhaul link includes dynamic beam management of the backhaul link, the access link is a link between a smart repeater and a second user equipment, and the backhaul link is a link between a base station and a smart repeater, comprising:

[0048] The status acquisition module is configured to: generate first uplink channel status information between the base station and the first user equipment; generate second uplink channel status information between the smart repeater and the second user equipment; and generate third uplink channel status information between the base station and the smart repeater, so as to obtain complete uplink channel status information between the base station and the second user equipment based on the second uplink channel status information and the third uplink channel status information; wherein the first user equipment is outside the coverage area of ​​the smart repeater, and the second user equipment is within the coverage area of ​​the smart repeater.

[0049] The device recommendation module is configured so that the intelligent repeater determines the second user equipment that meets the uplink transmission conditions based on the second uplink channel state information, and generates a physical uplink control channel message scrambled with the intelligent repeater wireless network temporary identifier and sends it to the base station; wherein, the physical uplink control channel message scrambled with the intelligent repeater wireless network temporary identifier includes an uplink control information message, the uplink control information message includes: a terminal identifier and an uplink multiple user multiple inputs and multiple outputs indication, the terminal identifier uniquely identifies the second user equipment, and the uplink multiple user multiple inputs and multiple outputs indication suggests configuring uplink multiple user multiple inputs and multiple outputs for the involved second user equipment;

[0050] The uplink configuration module is configured such that the base station performs uplink transmission configuration on the first user equipment and the second user equipment that meets the uplink transmission conditions based on the first uplink channel state information and the complete uplink channel state information to obtain first uplink configuration information; the base station performs uplink transmission configuration on the intelligent repeater to obtain third uplink configuration information; and the uplink transmission configuration is beam management configuration; and / or

[0051] The base station performs uplink transmission configuration on the second user equipment that meets the uplink transmission conditions based on the complete uplink channel state information to obtain second uplink configuration information, and the base station performs uplink transmission configuration on the smart repeater to obtain third uplink configuration information, wherein the uplink transmission configuration is beam management configuration.

[0052] The data transmission module is configured to allow the first user equipment to send uplink data to the base station according to the first uplink configuration information, and the second user equipment that meets the uplink transmission conditions to send uplink data according to the first uplink configuration information and the intelligent repeater according to the third uplink configuration information, and / or the second user equipment that meets the uplink transmission conditions to send uplink data to the base station according to the second uplink configuration information and the intelligent repeater according to the third uplink configuration information.

[0053] According to a third aspect of the present invention, an electronic device is provided, comprising: a processor and a memory; wherein the memory stores computer-readable instructions, which, when executed by the processor, implement the uplink transmission method in any of the above exemplary embodiments.

[0054] According to a fourth aspect of the present invention, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the uplink transmission method in any of the above exemplary embodiments.

[0055] As can be seen from the above technical solutions, the uplink transmission method, uplink transmission device, computer storage medium, and electronic device in the exemplary embodiments of this disclosure have at least the following advantages and positive effects:

[0056] In the methods and apparatus provided in the exemplary embodiments of this disclosure, the intelligent repeater feeds back the second uplink channel state information between itself and the second user equipment to the base station, helping the base station obtain complete uplink channel state information between the second user equipment and the base station, and assisting in uplink transmission configuration. Furthermore, the base station performs uplink transmission configuration for the first and second user equipment based on the first uplink channel state information and the complete uplink channel state information, and also performs uplink transmission configuration for the intelligent repeater. This solves the uplink transmission pairing problem between the second user equipment within the intelligent repeater, and also solves the uplink transmission pairing problem between the second user equipment within the intelligent repeater and the first user equipment outside the intelligent repeater, thus assisting in achieving uplink multi-user multiple-input multiple-output transmission effects and further improving spatial multiplexing gain and uplink channel capacity.

[0057] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0058] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0059] Figure 1 A schematic diagram of the implementation structure of a wireless repeater is shown;

[0060] Figure 2 This diagram illustrates the signal amplification effect of a wireless repeater.

[0061] Figure 3 This diagram illustrates the architecture of IAB equipment in the 5G era.

[0062] Figure 4 A schematic diagram of data transmission from an RF repeater is shown.

[0063] Figure 5 A schematic diagram of data transmission from a smart repeater is shown.

[0064] Figure 6 A schematic diagram of the protocol stack of an intelligent repeater is shown;

[0065] Figure 7 A schematic diagram of the link structure of an intelligent repeater is shown;

[0066] Figure 8 A schematic diagram of the structure of a multi-user MIMO system is shown.

[0067] Figure 9 The schematic diagram illustrates a flowchart of an uplink transmission method according to an exemplary embodiment of the present disclosure;

[0068] Figure 10 This schematic diagram illustrates a flowchart of a method for a base station to obtain first uplink channel state information and complete uplink channel state information in an exemplary embodiment of this disclosure.

[0069] Figure 11 This illustration schematically shows a flowchart of a method for obtaining terminal capability information of a first user equipment and a second user equipment and intelligent repeater capability information in an exemplary embodiment of this disclosure;

[0070] Figure 12 This schematic diagram illustrates a flowchart of a method for configuring uplink transmission in a base station according to an exemplary embodiment of the present disclosure.

[0071] Figure 13 This schematic diagram illustrates a flowchart of a method for transmitting uplink data in an exemplary embodiment of the present disclosure.

[0072] Figure 14 This schematically illustrates a flowchart of a method for further transmitting uplink data in an exemplary embodiment of this disclosure;

[0073] Figure 15 This schematic diagram illustrates a process flow diagram of a method for processing uplink data that does not involve a second user equipment in an exemplary embodiment of this disclosure;

[0074] Figure 16 This schematic diagram illustrates the flow chart of the uplink transmission method in an application scenario of an exemplary embodiment of this disclosure;

[0075] Figure 17 This schematic diagram illustrates the structure of an uplink transmission device according to an exemplary embodiment of the present disclosure;

[0076] Figure 18 The illustration schematically depicts an electronic device for implementing an uplink transmission method according to an exemplary embodiment of the present disclosure;

[0077] Figure 19 The illustration schematically depicts a computer-readable storage medium for implementing an uplink transmission method according to an exemplary embodiment of the present disclosure. Detailed Implementation

[0078] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make this disclosure more comprehensive and complete, and to fully convey the concept of the example embodiments to those skilled in the art. The described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a full understanding of embodiments of this disclosure. However, those skilled in the art will recognize that the technical solutions of this disclosure can be practiced with one or more of the specific details omitted, or other methods, components, apparatus, steps, etc., can be employed. In other instances, well-known technical solutions are not shown or described in detail to avoid obscuring various aspects of this disclosure.

[0079] The terms “a,” “an,” “the,” and “the” are used in this specification to indicate the presence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended inclusion and to mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms “first” and “second” are used only as markings and are not a limitation on the number of objects.

[0080] Furthermore, the accompanying drawings are merely illustrative of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. Some block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities.

[0081] Figure 1 A schematic diagram of the implementation structure of a wireless repeater is shown, as follows: Figure 1 As shown, wireless repeaters have a simpler structure compared to base stations. A wireless repeater consists of components or modules such as an antenna, RF duplexer, low-noise amplifier, mixer, electrically adjustable attenuator, filter, and power amplifier, and includes both uplink and downlink amplification links.

[0082] Figure 2 This diagram illustrates the signal amplification effect of a wireless repeater. Figure 2 As shown, since a wireless repeater only amplifies the signal, it also amplifies noise and interference signals while amplifying the useful signal.

[0083] In the process of wireless network standard evolution, a variety of coverage extension devices have been defined, such as Relay devices in the 4G (the 4th generation mobile communication technology) era and IAB (Integrated Access Backhaul) devices in the 5G era.

[0084] Figure 3 This diagram illustrates the architecture of IAB devices in the 5G era, such as... Figure 3 As shown, these devices all have all layer 1 to layer 3 protocol stacks and are not transparent to the terminal.

[0085] From the terminal's perspective, both the 4G relay device and the 5G IAB device are a base station; from the base station's perspective, both the relay device and the IAB device are a single UE (User Equipment). Therefore, the base station's data transmission and reception are handled by scheduling the relay device and the IAB device.

[0086] The 5G standard Rel-18 will introduce a new wireless repeater technology, namely the Smart Repeater. As of January 2022, relevant standardization work has not yet begun. Smart Repeaters have several characteristics compared to previous radio frequency repeaters.

[0087] First, it supports beamforming for terminals within the coverage area.

[0088] Figure 4 A schematic diagram of data transmission from an RF repeater is shown, such as... Figure 4 As shown, traditional radio frequency repeaters can only amplify and forward signals, and cannot perform beamforming technology on terminals within the coverage area.

[0089] Figure 5 A schematic diagram of data transmission from a smart repeater is shown, such as... Figure 5 As shown, intelligent repeaters can support data transmission from user equipment in a beamforming-based manner.

[0090] Secondly, it supports receiving control information from macro stations.

[0091] Figure 6 A schematic diagram of the protocol stack of a smart repeater is shown, as follows: Figure 6 As shown, a smart repeater needs at least a physical layer protocol stack, which allows for adjustments to the link between the repeater and the terminal.

[0092] Figure 7 A schematic diagram of the link structure of a smart repeater is shown, such as... Figure 7 As shown, the link structure of this repeater allows for link adjustments.

[0093] Third, it supports security.

[0094] On the other hand, in order to improve the spatial freedom of wireless signal transmission and enhance the spectral efficiency and channel capacity of the wireless access network, LTE proposed the Multiple-input Multiple-output (MIMO) technology.

[0095] NR (New Radio) improves and enhances MIMO based on LTE, specifically including DMRS (Demodulation Reference Signal) design, a new CSI (Channel State Information) reporting framework, and support for beam management / QCL (Quasi co-location).

[0096] Specifically, MIMO allocates the same time and frequency resources to the same UE for sending multiple parallel transmissions.

[0097] Spatial multiplexing (also known as MIMO) supports two modes: single-user MIMO (SU-MIMO, Single-User Multiple-Input Multiple-Output) and multi-user (MU-MIMO).

[0098] In SU-MIMO, spatially multiplexed data streams are scheduled to a single user to improve that user's transmission rate and spectral efficiency.

[0099] In MU-MIMO, spatially multiplexed data streams are scheduled to multiple users, and these users share the same time-frequency resources through spatial multiplexing.

[0100] Figure 8 A schematic diagram of the structure of a multi-user MIMO system is shown, such as... Figure 8 As shown, in a MU-MIMO system, the two most common channels are the Multiple Access Channel (MAC) and the Broadcast Channel (BS), which correspond to the uplink and downlink channels, respectively.

[0101] in, Figure 8 The diagram illustrates the uplink channel in a multi-user MIMO system, which refers to the communication channel between multiple users and the base station. The downlink channel refers to the communication channel between the base station and multiple users.

[0102] In 3GPP NR, when multiple transmit channels are available, the UE can use multi-antenna technology to transmit uplink signals, thereby obtaining multi-antenna processing gain. For codebook-based uplink transmission in NR systems, specifically, the terminal first needs to send an uplink channel sounding reference signal (SRS) to the base station. Subsequently, the base station measures the SRS sent by the terminal, performs resource scheduling on the terminal, and notifies the terminal of the PUSCH (Physical Uplink Shared Channel) resource allocation and the corresponding MCS (Modulation and Coding Scheme), Transmission Precoding Matrix Indicator (TPMI), transmission layer number, SRS Resource Indicator (SRI), and DM-RS port indication information. The terminal then modulates and codes the data according to the base station's instructions, and the base station notifies the terminal of the Transmission Precoding Matrix Indicator (TPMI), transmission layer number, SRS Resource Indicator (SRI), and DM-RS port indication information.

[0103] In scenarios with intelligent repeaters, the macro base station sends UE information to the intelligent repeater, which processes it and then forwards it to the UE it serves. From the macro base station's perspective, the intelligent repeater is a terminal, while from the UE's perspective, it is a base station. To further improve resource utilization and terminal performance, several technical challenges exist in supporting these requirements in current 3GPP specifications for intelligent repeater deployment scenarios.

[0104] First, the base station cannot obtain complete uplink channel state information between the terminal and the base station: In the deployment scenario of intelligent repeaters, the terminal needs to send the uplink probe reference signal to the intelligent repeater. After receiving it, the intelligent repeater amplifies the signal and forwards it to the base station. Therefore, the base station can only measure the uplink channel state between the intelligent repeater and the base station, and cannot obtain the uplink channel state information between the terminal and the intelligent repeater.

[0105] Secondly, the base station cannot send uplink MU-MIMO configuration to the terminal: In the deployment scenario of smart repeater, the base station cannot obtain the channel state information between the terminal and the smart repeater by measuring the uplink probe reference signal. Therefore, it cannot perform uplink MU-MIMO transmission pairing for the terminal in the smart repeater, and uplink MU-MIMO transmission cannot be realized, which inhibits the improvement of uplink transmission capacity.

[0106] Third, intelligent repeaters cannot assist in achieving uplink MU-MIMO transmission: Since the uplink data sent by the terminal needs to be forwarded to the base station through the intelligent repeater, when the terminal sends uplink data according to the uplink MIMO configuration, the intelligent repeater cannot transmit the received data from multiple terminals to the base station in uplink MIMO form, thus failing to achieve uplink MU-MIMO transmission.

[0107] Due to these technical issues, the current 3GPP NR protocol cannot meet the requirements and needs to be enhanced in a new way to meet the needs of network deployment and optimization.

[0108] To address the problems existing in related technologies, this disclosure proposes an uplink transmission method applied to beam management. The beam management simultaneously considers beam management of the access link and beam management of the backhaul link. The beam management of the access link includes dynamic beam management of the access link, and the beam management of the backhaul link includes dynamic beam management of the backhaul link. The access link is the link between the smart repeater and the second user equipment, and the backhaul link is the link between the base station and the smart repeater. Figure 9 A flowchart of the uplink transmission method is shown, such as Figure 9 As shown, the uplink transmission method includes at least the following steps:

[0109] Step S910. The base station generates first uplink channel state information between the first user equipment and the base station, the smart repeater generates second uplink channel state information between the smart repeater and the second user equipment, and the base station generates third uplink channel state information between the base station and the smart repeater, so as to obtain complete uplink channel state information between the base station and the second user equipment based on the second uplink channel state information and the third uplink channel state information; wherein, the first user equipment is outside the coverage area of ​​the smart repeater, and the second user equipment is within the coverage area of ​​the smart repeater.

[0110] Step S920. The intelligent repeater determines the second user equipment that meets the uplink transmission conditions based on the second uplink channel state information, and generates a physical uplink control channel message scrambled with the intelligent repeater wireless network temporary identifier and sends it to the base station; wherein, the physical uplink control channel message scrambled with the intelligent repeater wireless network temporary identifier includes an uplink control information message, which includes: a terminal identifier and an uplink MIMO (Multi-User Multiple Input) and MIMO (Multi-Output) indication. The terminal identifier uniquely identifies the second user equipment, and the uplink MIMO and MIMO indication suggests configuring uplink MIMO and MIMO for the second user equipment involved.

[0111] Step S930. The base station performs uplink transmission configuration on the first user equipment and the second user equipment that meets the uplink transmission conditions based on the first uplink channel state information and the complete uplink channel state information to obtain the first uplink configuration information. The base station performs uplink transmission configuration on the intelligent repeater to obtain the third uplink configuration information. The uplink transmission configuration is beam management configuration; and / or

[0112] The base station performs uplink transmission configuration on the second user equipment that meets the uplink transmission conditions based on the complete uplink channel state information to obtain the second uplink configuration information. The base station performs uplink transmission configuration on the intelligent repeater to obtain the third uplink configuration information. The uplink transmission configuration is beam management configuration.

[0113] Step S940. The first user equipment sends uplink data to the base station according to the first uplink configuration information, and the second user equipment that meets the uplink transmission conditions sends uplink data to the base station according to the first uplink configuration information and the intelligent repeater according to the third uplink configuration information, and / or the second user equipment that meets the uplink transmission conditions sends uplink data to the base station according to the second uplink configuration information and the intelligent repeater according to the third uplink configuration information.

[0114] In an exemplary embodiment of this disclosure, the intelligent repeater can feed back the second uplink channel state information between itself and the second user equipment to the base station, helping the base station obtain complete uplink channel state information between the second user equipment and the base station, thus assisting in uplink transmission configuration. Furthermore, the base station configures uplink transmission for both the first and second user equipment based on the first uplink channel state information and the complete uplink channel state information, and also configures uplink transmission for the intelligent repeater. This solves the uplink transmission pairing problem between the second user equipment within the intelligent repeater, and also solves the uplink transmission pairing problem between the second user equipment within the intelligent repeater and the first user equipment outside the intelligent repeater. This assists in achieving uplink multi-user multiple-input multiple-output transmission effects, further improving spatial multiplexing gain and uplink channel capacity.

[0115] The following section provides a detailed explanation of each step in the uplink transmission method.

[0116] In step S910, the base station generates first uplink channel state information between the first user equipment and the base station, the smart repeater generates second uplink channel state information between the smart repeater and the second user equipment, and the base station generates third uplink channel state information between the base station and the smart repeater, so as to obtain complete uplink channel state information between the base station and the second user equipment based on the second uplink channel state information and the third uplink channel state information; wherein, the first user equipment is outside the coverage area of ​​the smart repeater, and the second user equipment is within the coverage area of ​​the smart repeater.

[0117] In an exemplary embodiment of this disclosure, the location of the intelligent repeater is fixed.

[0118] In an optional embodiment, Figure 10 A flowchart illustrating the method by which a base station obtains the first uplink channel state information and the complete uplink channel state information is shown, as follows: Figure 10 As shown, the method may include at least the following steps: In step S1010, the base station configures uplink channel measurement configuration information for the first user equipment and the second user equipment through radio resource control signaling based on the terminal capability information of the first user equipment and the second user equipment, and sends the uplink channel measurement configuration information to the first user equipment and the second user equipment through radio resource control messages; wherein, the configuration of the uplink channel measurement configuration information includes transmission configuration, the transmission configuration is an enumeration type, including codebook and non-codebook, the codebook indicates that the first user equipment and the second user equipment use codebook-based precoded transmission, and the non-codebook indicates that the first user equipment and the second user equipment indicate that they use non-codebook-based precoded transmission, including the txConfig field in the physical uplink shared channel configuration in TS 38.331;

[0119] The uplink channel measurement configuration information includes resource configuration information for the uplink reference signal used for uplink channel state information measurement and uplink channel state information reporting configuration information.

[0120] Radio resource control messages include terminal identifier and uplink bandwidth configuration information;

[0121] The terminal identifier uniquely identifies a first user equipment or a second user equipment, including the temporary identifier of the cell wireless network;

[0122] The uplink bandwidth configuration information includes the probe reference signal configuration, and further includes a list of added and released probe reference signal resource sets.

[0123] The list for adding and releasing probe reference signal resource sets includes probe reference signal resource sets and probe reference signal resources.

[0124] The probe reference signal resource set includes a probe reference signal resource set identifier and resource type. The resource types include three types: aperiodic, semi-static, and periodic. Among them, semi-static and periodic indicate the period and bias of the probe reference signal.

[0125] The probe reference signal resource includes the probe reference signal resource identifier, resource mapping, frequency domain location, and resource type. The resource mapping includes the starting position and the number of symbols. The frequency domain location includes the frequency domain offset and frequency hopping. The resource type includes three types: aperiodic, semi-static, and periodic. Among them, semi-static and periodic indicate the period and offset of the probe reference signal.

[0126] Prior to this, the base station can first obtain the terminal capability information of the first user equipment and the second user equipment, as well as the intelligent repeater capability information of the intelligent repeater.

[0127] In an optional embodiment, Figure 11 A flowchart illustrating a method for obtaining terminal capability information of a first user equipment and a second user equipment, as well as intelligent repeater capability information, is shown. Figure 11 As shown, the method may include at least the following steps: In step S1110, the base station obtains the intelligent repeater capability information of the intelligent repeater and sends capability acquisition request information to the first user equipment and the second user equipment; wherein, the intelligent repeater capability information includes the location information, beam configuration information and multi-antenna transmission capability information of the intelligent repeater.

[0128] After the deployment of a smart repeater, the base station can obtain information about the smart repeater's capabilities.

[0129] It is worth noting that since the intelligent repeater is deployed between the base station and the terminal, it is necessary to consider both the beam management of the backhaul link and the beam management of the access link.

[0130] Among them, the backhaul link is the link between the base station and the smart repeater, and the access link is the link between the smart repeater and the terminal.

[0131] The intelligent repeater capability information may include the intelligent repeater's location information and related capability configuration information. Furthermore, the related capability configuration information may include the intelligent repeater's antenna configuration and multi-antenna transmission capabilities, etc., which are not specifically limited in this exemplary embodiment.

[0132] On the other hand, in order to obtain terminal capability information of the first user equipment and the second user equipment, the base station can also send capability acquisition request information to the first user equipment and the second user equipment.

[0133] In step S1120, the first user equipment and the second user equipment return terminal capability information to the base station according to the capability acquisition request information; wherein, the terminal capability information includes a terminal radio access capability support list, the terminal radio access capability support list includes an uplink feature set supported by a specific carrier, the uplink feature set supported by the specific carrier indicates the uplink capability list supported by the first user equipment and the second user equipment for the corresponding frequency band, and the uplink feature set supported by the specific carrier includes the physical uplink shared channel's support capability for codebook-based multiple input multiple output and the physical uplink shared channel's support capability for non-codebook multiple input multiple output;

[0134] The physical uplink shared channel's support capability for codebook-based multiple input multiple output includes the maximum number of multiple input multiple output layers supported by the physical uplink shared channel and the number of supported probe reference signal resources. The maximum number of multiple input multiple output layers supported by the physical uplink shared channel indicates the number of uplink multiple input multiple output layers, and the number of supported probe reference signal resources is an integer of 1 or 2.

[0135] The physical uplink shared channel's ability to support non-codebook multiple-input multiple-output (MIMO) indicates the number of uplink MIMO layers.

[0136] After the first user equipment and the second user equipment receive the capability acquisition request information sent by the base station, they can send terminal capability information to the base station.

[0137] Specifically, terminal capability information can be in the form of a list of supported wireless access technology capabilities.

[0138] The terminal capability information in the list of supported wireless access technologies may include: the uplink feature set supported by a specific carrier, the PUSCH's support for codebook-based MIMO, and the PUSCH's support for non-codebook-based MIMO.

[0139] Specifically, the uplink feature set supported by a specific carrier is used to indicate the list of uplink capabilities supported by the terminal for that frequency band; the support capability of PUSCH for codebook-based MIMO may also include the maximum number of MIMO layers supported by PUSCH and the number of SRS resources supported. The maximum number of MIMO layers supported by PUSCH is the uplink MIMO layer number, and the number of SRS resources supported can be an integer, such as 1 or 2; the support capability of PUSCH for non-codebook-based MIMO is the uplink MIMO layer number.

[0140] In this exemplary embodiment, the base station can obtain terminal capability information of the first user equipment and the second user equipment, as well as intelligent repeater capability information of the intelligent repeater, providing data support for the base station to obtain first uplink channel state information and complete uplink channel state information.

[0141] After the base station obtains the terminal capability information of the first user equipment and the second user equipment, as well as the intelligent repeater capability information of the intelligent repeater, the base station can configure uplink channel measurement configuration information for the first user equipment and the second user equipment based on the terminal capability information of the first user equipment and the second user equipment.

[0142] Specifically, the base station configures the uplink transmission parameters of the uplink transmission channel for the first user equipment and the second user equipment through RRC (Radio Resource Control) signaling based on the terminal capability information of the first user equipment and the second user equipment, that is, the uplink channel measurement configuration information.

[0143] Specifically, the configuration of this uplink transmission channel can include: transmission configuration. This transmission configuration is an enumeration type, containing two options: "codebook" and "non-codebook".

[0144] If it is "codebook", it instructs the terminal to use codebook-based pre-encoded transmission; if it is "non-codebook", it instructs the terminal to use non-codebook-based pre-encoded transmission, as shown in the txConfig field of the PUSCH configuration in TS 38.331.

[0145] To obtain the first uplink channel state information and the complete uplink channel state information, the base station sends an uplink channel measurement configuration message for uplink channel measurement to the first user equipment and the second user equipment via a radio resource control message. This radio resource control message may be another RRC signaling message.

[0146] The uplink channel measurement configuration information may include resource configuration information for the uplink reference signal SRS used for uplink CSI measurement and uplink CSI reporting configuration information.

[0147] The RRC message may include: terminal identifier and uplink BWP (Bandwidth part) configuration information, etc., which are not specifically limited in this exemplary embodiment.

[0148] The terminal identifier can uniquely identify a terminal, such as the C-RNTI (CellRadio Network Temporary Identifier) ​​issued by the base station to the terminal. Uplink BWP configuration information can include SRS configuration, specifically the addition and release lists of SRS resource sets. Further, it includes SRS resource sets and SRS resources. An SRS resource set can include an SRS resource set identifier and resource type, which includes aperiodic, semi-static, and periodic types, with semi-static and periodic indicating the SRS period and offset. An SRS resource can include an SRS resource identifier, resource mapping, frequency domain location, and resource type. The resource mapping includes the start position and number of symbols, the frequency domain location includes the frequency domain offset and frequency hopping, and the resource type includes aperiodic, semi-static, and periodic types, with semi-static and periodic indicating the SRS period and offset.

[0149] After the base station sends uplink channel measurement configuration information to the first user equipment and the second user equipment, all the first user equipment and the second user equipment under the coverage of the base station send uplink reference signals (SRS) on specific time and frequency resources based on the uplink channel measurement configuration information.

[0150] In step S1020, the first user equipment sends an uplink probe reference signal to the base station according to the uplink channel measurement configuration information, so that the base station generates the first uplink channel state information.

[0151] For the first user equipment outside the coverage area of ​​the intelligent repeater, the first user equipment sends an uplink sounding reference signal (SRS) to the base station based on the uplink channel measurement configuration information sent by the base station, and sends an SRS message to the base station so that the base station generates the first uplink channel state information.

[0152] In step S1030, the second user equipment sends a probe reference signal to the smart repeater on the corresponding time-frequency resources according to the uplink channel measurement configuration information, so that the smart repeater generates second uplink channel state information and generates a physical uplink control channel message scrambled with the cell radio network temporary identifier with the terminal identifier, so as to send the physical uplink control channel message scrambled with the cell radio network temporary identifier and the amplified probe reference signal message to the base station. The base station generates third uplink channel state information between the smart repeater and the base station according to the amplified probe reference signal message, so as to obtain complete uplink channel state information between the base station and the second user equipment according to the second uplink channel state information and the third uplink channel state information.

[0153] The physical uplink control channel message scrambled with the temporary identifier of the cell wireless network includes: terminal identifier, terminal location information, channel quality indicator, recommended precoding matrix indicator, layer indicator and rank indicator. The terminal identifier uniquely identifies the second user equipment, and the recommended precoding matrix indicator is a precoding matrix selected from the codebook.

[0154] For a second user equipment within the coverage area of ​​a smart repeater, it can send an SRS to the smart repeater so that the smart repeater can generate a second uplink channel state information between the second user equipment and the smart repeater.

[0155] Furthermore, the intelligent repeater generates a physical uplink control channel message scrambled with the second uplink channel state information and the terminal identifier, and sends the physical uplink control channel message scrambled with the cell radio network temporary identifier and the amplified probe reference signal message to the base station.

[0156] The base station measures the third uplink channel state information between the smart repeater and the base station based on the amplified detection reference signal message.

[0157] At this point, the base station obtains the complete uplink channel state information between the base station and the second user equipment based on the acquired second uplink channel state information and the generated third uplink channel state information.

[0158] The physical uplink control channel messages scrambled with temporary identifiers for the cell wireless network include: terminal identifier, terminal location information, channel quality indicator, precoding matrix indicator, layer indicator, and rank indicator.

[0159] Specifically, the terminal identifier uniquely identifies the second user equipment, and the precoding matrix indicator can be a precoding matrix selected from the codebook.

[0160] In this exemplary embodiment, the base station obtains the first uplink channel state information and the complete uplink channel state information by sending uplink channel measurement configuration information. The smart repeater can further feed back the second uplink channel state information between the second user equipment and the smart repeater to the base station, thereby helping the base station obtain the complete uplink channel state information and assisting in uplink transmission configuration.

[0161] In step S920, the intelligent repeater determines the second user equipment that meets the uplink transmission conditions based on the second uplink channel state information, and generates a physical uplink control channel message scrambled with the intelligent repeater wireless network temporary identifier and sends it to the base station. The physical uplink control channel message scrambled with the intelligent repeater wireless network temporary identifier includes an uplink control information message, which includes a terminal identifier and an uplink MIMO (Multi-User Multiple Input) and MIMO (Multi-Output) indicator. The terminal identifier uniquely identifies the second user equipment, and the uplink MIMO and MIMO indicator suggests configuring uplink MIMO and MIMO for the second user equipment.

[0162] In an exemplary embodiment of this disclosure, when a smart repeater collects SRS signals reported by multiple second user devices simultaneously or at very short intervals, the smart repeater can recommend relevant second user devices to perform uplink MU-MIMO transmission based on the second uplink channel state information, terminal location information, and smart repeater capability information in the SRS signals. The smart repeater then sends this indication information to the base station via a PUCCH (Physical Uplink Control Channel) message scrambled with SR-RNTI (Smart Repeater Radio Network Temporary Identifier).

[0163] Among them, the physical uplink control channel message scrambled with the temporary identifier of the smart repeater wireless network includes a newly defined UCI (Uplink Control Information) message, which may include the terminal identifier and UL MU-MIMO (Up Link MU-MIMO) indication.

[0164] Among them, the terminal identifier can uniquely identify the terminal; the UL MU-MIMO indication can suggest configuring uplink UL MU-MIMO for the terminals involved.

[0165] In step S930, the base station performs uplink transmission configuration on the first user equipment and the second user equipment that meets the uplink transmission conditions based on the first uplink channel state information and the complete uplink channel state information to obtain first uplink configuration information. The base station performs uplink transmission configuration on the intelligent repeater to obtain third uplink configuration information. The uplink transmission configuration is beam management configuration; and / or

[0166] The base station performs uplink transmission configuration on the second user equipment that meets the uplink transmission conditions based on the complete uplink channel state information to obtain the second uplink configuration information. The base station performs uplink transmission configuration on the intelligent repeater to obtain the third uplink configuration information. The uplink transmission configuration is beam management configuration.

[0167] In the exemplary embodiments of this disclosure, considering that the wireless environment between the smart repeater and the base station may change dynamically in the smart repeater deployment scenario, adaptive dynamic beam management of the backhaul link is required in order to obtain higher gain.

[0168] On the other hand, considering the movement of the terminal, the wireless link between the terminal and the smart repeater will also change dynamically. Therefore, dynamic beam management of the access link is required.

[0169] Therefore, in order to achieve dynamic beam management, the base station first measures the SRS signal sent by the terminal, including the SRS signal directly obtained from the terminal and the SRS signal forwarded from the smart repeater.

[0170] After receiving the SRS signal sent by the first user equipment, the SRS signal of the second user equipment forwarded by the smart repeater, and the PUCCH message scrambled with SR-RNTI containing the uplink MU-MIMO indication message, the base station can comprehensively analyze the first uplink channel state information and complete uplink channel state information, terminal capability information and repeater capability information of the first and second user equipment inside and outside the smart repeater, and perform uplink MU-MIMO pairing on the first and second user equipment involved.

[0171] Since multiple user equipments use the same time-frequency resources and interfere with each other, the base station selects user equipments with less interference to perform uplink MU-MIMO pairing based on the measured uplink channel conditions to achieve uplink MU-MIMO transmission.

[0172] In an optional embodiment, Figure 12 A flowchart illustrating the method for configuring uplink transmission at a base station is shown, such as... Figure 12 As shown, the method may include at least the following steps: In step S1210, based on the intelligent repeater capability information and the terminal capability information, the base station performs uplink transmission configuration on the first user equipment and the second user equipment that meets the uplink transmission conditions according to the first uplink channel state information and the complete uplink channel state information to obtain the first uplink configuration information; wherein, the uplink transmission configuration includes the number of uplink transmission layers and the uplink precoding matrix.

[0173] If the base station configures uplink MU-MIMO for the second user equipment within the coverage area of ​​the smart repeater and the first user equipment outside the coverage area of ​​the smart repeater, the base station must configure the uplink transmission based on the smart repeater's capability information. This includes the number of uplink transmission layers and the uplink precoding matrix, etc.

[0174] In step S1220, based on the intelligent repeater capability information, the base station performs uplink transmission configuration on the second user equipment that meets the uplink transmission conditions according to the complete uplink channel state information to obtain the second uplink configuration information; wherein, the uplink transmission configuration includes the number of uplink transmission layers and the uplink precoding matrix.

[0175] If a base station is configuring uplink MU-MIMO between second user equipment within the coverage area of ​​a smart repeater, the base station needs to perform the uplink MU-MIMO configuration for the second user equipment within the coverage area of ​​the smart repeater, taking into account the smart repeater's capability information, including the number of antenna ports. This configuration may include the number of uplink transmission layers, the uplink precoding matrix, etc.

[0176] In this exemplary embodiment, the base station, taking into account the intelligent repeater capability information and the terminal capability information, performs uplink transmission configuration based on the first uplink channel state information and the complete uplink channel state information, thereby providing support for uplink MU-MIMO transmission to the second user equipment within the repeater, and also providing support for MU-MIMO transmission to the second user equipment within the intelligent repeater and the first user equipment outside the intelligent repeater.

[0177] In addition, considering that the uplink data sent by the second user equipment needs to be sent to the base station through the intelligent repeater, in order to realize uplink MU-MIMO transmission, the base station not only needs to send the uplink MIMO configuration issued to the second user equipment to the intelligent repeater, but also needs to send uplink MU-MIMO configuration information to the intelligent repeater, that is, the third uplink configuration information.

[0178] In step S940, the first user equipment sends uplink data to the base station according to the first uplink configuration information, and the second user equipment that meets the uplink transmission conditions sends uplink data to the base station according to the first uplink configuration information and the intelligent repeater according to the third uplink configuration information, and / or the second user equipment that meets the uplink transmission conditions sends uplink data to the base station according to the second uplink configuration information and the intelligent repeater according to the third uplink configuration information.

[0179] In an exemplary embodiment of this disclosure, a first user equipment and a second user equipment that meets the uplink transmission conditions are able to send uplink data to the base station according to the first uplink configuration information, the second uplink configuration information and the third uplink configuration information.

[0180] In an optional embodiment, Figure 13 A flowchart illustrating the method for sending uplink data is shown, such as... Figure 13 As shown, the method may include at least the following steps: In step S1310, the base station sends the first uplink configuration information to the first user equipment and the smart repeater through the physical downlink control channel message scrambled with the cell radio network temporary identifier, sends the second uplink configuration information to the smart repeater through the physical downlink control channel message scrambled with the cell radio network temporary identifier, and sends the third uplink configuration information to the smart repeater through the physical downlink control channel message scrambled with the smart repeater radio network temporary identifier;

[0181] Among them, the physical downlink control channel message scrambled with the temporary identifier of the cell wireless network includes downlink control information messages, which include precoding information and transmission layer number, sounding reference signal resource indication, antenna port and physical uplink shared channel resource allocation and corresponding modulation and coding schemes;

[0182] The physical downlink control channel message scrambled with the temporary identifier of the smart repeater wireless network includes downlink control information messages. The downlink control information messages include terminal identifiers and uplink multi-user multiple-input multiple-output precoding matrices. The terminal identifier uniquely identifies the second user equipment through the temporary identifier of the cell wireless network and indicates the second user equipment that needs to perform uplink multi-user multiple-input multiple-output transmission.

[0183] After the base station determines the first uplink configuration information, it sends a C-RNTI scrambled PDCCH (Physical downlink control channel) message to the smart repeater and the first user equipment, so that the first user equipment and the second user equipment can obtain the first uplink configuration information obtained by the base station for uplink transmission configuration.

[0184] Specifically, the C-RNTI scrambled PDCCH message contains a newly defined DCI (Downlink Control Information) message, which may include: precoding information and transmission layer number, SRS resource indication, antenna port, and PUSCH resource allocation and corresponding MCS.

[0185] After determining the uplink transmission configuration, the base station can send the C-RNTI scrambled PDCCH message to the smart repeater so that the second user equipment can obtain the second uplink configuration information.

[0186] The C-RNTI scrambled PDCCH message contains a newly defined DCI message, which may also include: precoding information and transmission layer number, SRS resource indication, antenna port, and PUSCH resource allocation and corresponding MCS.

[0187] Furthermore, the base station sends this third uplink configuration information to the smart repeater via a PDCCH message scrambled with SR-RNTI.

[0188] Specifically, the SR-RNTI scrambled PDCCH message contains a newly defined DCI message, which may include the terminal identifier and the uplink MU-MIMO precoding matrix.

[0189] The terminal identifier can be a unique identifier for the terminal via C-RNTI, indicating the terminal that needs to perform uplink MU-MIMO transmission.

[0190] In step S1320, the intelligent repeater saves the third uplink configuration information, and amplifies the first and second uplink configuration information before sending them to the second user equipment that meets the uplink transmission conditions.

[0191] After receiving the second and third uplink configuration information from the base station, the intelligent repeater can save the third uplink configuration information from the SR-RNTI scrambled PDCCH message (a newly defined DCI format). Furthermore, it amplifies the C-RNTI scrambled PDCCH message to be sent to the second user equipment and sends it to the second user equipment that meets the uplink transmission conditions, so that the second user equipment receives the first and second uplink configuration information.

[0192] In step S1330, the first user equipment performs uplink data transmission according to the first uplink configuration information, and the second user equipment that meets the uplink transmission conditions performs uplink data transmission according to the first uplink configuration information and the intelligent repeater performs uplink data transmission according to the third uplink configuration information, in order to send uplink data to the base station, and / or the second user equipment that meets the uplink transmission conditions performs uplink data transmission according to the second uplink configuration information and the intelligent repeater performs uplink data transmission according to the third uplink configuration information, in order to send uplink data to the base station.

[0193] In an optional embodiment, Figure 14 A flowchart illustrating the method for further sending uplink data is shown, such as... Figure 14As shown, the method may include at least the following steps: In step S1410, a first user equipment precodes and transmits uplink data according to first uplink configuration information to send uplink data to the base station, and a second user equipment that meets the uplink transmission conditions precodes and transmits uplink data according to the first uplink configuration information to send uplink data to the smart repeater. The smart repeater determines the second user equipment involved in the uplink data that meets the uplink transmission conditions, and sends uplink data to the base station according to third uplink configuration information.

[0194] Among them, after the second user equipment that meets the uplink transmission conditions receives the C-RNTI scrambled PDCCH message (a newly defined DCI format) sent by the smart repeater, it can obtain the corresponding first uplink configuration information and second uplink configuration information.

[0195] Furthermore, the second user equipment that meets the uplink transmission conditions modulates and codes the uplink data, and uses configurations such as SRI, transport precoding, and transport layer number to precode and transmit the uplink data.

[0196] In step S1420, the second user equipment that meets the uplink transmission conditions precodes and transmits uplink data according to the second uplink configuration information to send uplink data to the smart repeater. The smart repeater determines the second user equipment involved in the uplink data that meets the uplink transmission conditions and sends uplink data to the base station according to the third uplink configuration information.

[0197] After the intelligent repeater receives uplink data sent by the first user equipment and the second user equipment that meets the uplink transmission conditions, it can analyze whether the first user equipment and the second user equipment that meets the uplink transmission conditions are user equipment included in the uplink MU-MIMO configuration.

[0198] When the first user equipment and the second user equipment meeting the uplink transmission conditions are user equipment included in the uplink MU-MIMO configuration, the uplink configuration information is based on the first and / or second uplink configuration information issued by the base station. The intelligent repeater also performs uplink MU-MIMO precoding transmission of the uplink data based on the third uplink configuration information, so that the base station can receive the uplink data.

[0199] In addition, the uplink data received by the smart repeater may not involve a second user device that meets the uplink transmission conditions, in which case corresponding processing can be performed.

[0200] In an optional embodiment, Figure 15 A flowchart illustrating a method for processing uplink data that does not involve a second user equipment is shown, such as... Figure 15As shown, the method may include at least the following steps: In step S1510, when the smart repeater determines that the uplink data involves a second user equipment that does not meet the uplink transmission conditions, it selects uplink multiple-input multiple-output transmission precoding according to the second uplink channel state information and then sends the uplink data to the base station.

[0201] After the intelligent repeater receives uplink data sent by the first user equipment and the second user equipment that meets the uplink transmission conditions, it can analyze whether the first user equipment and the second user equipment that meets the uplink transmission conditions are user equipment included in the uplink MU-MIMO configuration.

[0202] When the first user equipment and the second user equipment that meets the uplink transmission conditions are not user equipment included in the uplink MU-MIMO configuration, a suitable uplink MIMO transmission precoding can be selected for the second user equipment based on the second uplink channel state information of the second user equipment before transmission, so that the base station can receive the uplink data.

[0203] In step S1520, when the smart repeater determines that the uplink data involves a second user equipment that does not meet the uplink transmission conditions, it amplifies the uplink data and sends the amplified uplink data to the base station.

[0204] After the intelligent repeater receives uplink data sent by the first user equipment and the second user equipment that meets the uplink transmission conditions, it can analyze whether the first user equipment and the second user equipment that meets the uplink transmission conditions are user equipment included in the uplink MU-MIMO configuration.

[0205] When the first user equipment and the second user equipment that meets the uplink transmission conditions are not user equipment included in the uplink MU-MIMO configuration, the uplink data can be directly amplified and the amplified uplink data can be forwarded to the base station.

[0206] After receiving uplink data from the first user equipment and the second user equipment, the base station can determine whether the uplink MU-MIMO configuration needs to be changed based on the current first and second uplink channel state information. If so, the uplink transmission configuration of the corresponding user equipment can be updated via control signaling.

[0207] In this exemplary embodiment, uplink data transmission can be achieved by using the first uplink configuration information, the second uplink configuration information, and the third uplink configuration information obtained from the uplink transmission configuration. During this process, the third line of configuration information configured by the intelligent repeater base station assists in achieving uplink MU-MIMO transmission. Furthermore, this uplink MU-MIMO transmission method has minimal impact on the first and second user equipment, exhibiting good backward compatibility and deployment feasibility. In addition, this downlink MU-MIMO transmission method enhances existing protocols with minimal modifications and is relatively easy to implement.

[0208] The uplink transmission method in this embodiment will be described in detail below with reference to an application scenario.

[0209] Figure 16 A flowchart illustrating the uplink transmission method in an application scenario is shown, such as... Figure 16 As shown, the uplink transmission method can include two application scenarios. One is uplink MU-MIMO transmission performed by terminals within the smart repeater; the other is uplink MU-MIMO transmission performed between terminals within the smart repeater and terminals outside the smart repeater.

[0210] In step S1610, the base station configures uplink channel measurement configuration information for the first user equipment and the second user equipment through radio resource control signaling based on the terminal capability information of the first user equipment and the second user equipment, and sends the uplink channel measurement configuration information to the first user equipment and the second user equipment through radio resource control messages; wherein, the configuration of the uplink channel measurement configuration information includes transmission configuration, which is an enumeration type, including codebook and non-codebook. The codebook indicates that the first user equipment and the second user equipment use codebook-based precoded transmission, and the non-codebook indicates that the first user equipment and the second user equipment indicate that they use non-codebook-based precoded transmission, including the txConfig field in the physical uplink shared channel configuration in TS 38.331;

[0211] The uplink channel measurement configuration information includes resource configuration information for the uplink reference signal used for uplink channel state information measurement and uplink channel state information reporting configuration information.

[0212] Radio resource control messages include terminal identifier and uplink bandwidth configuration information;

[0213] The terminal identifier uniquely identifies a first user equipment or a second user equipment, including the temporary identifier of the cell wireless network;

[0214] The uplink bandwidth configuration information includes the probe reference signal configuration, and further includes a list of added and released probe reference signal resource sets.

[0215] The list for adding and releasing probe reference signal resource sets includes probe reference signal resource sets and probe reference signal resources.

[0216] The probe reference signal resource set includes a probe reference signal resource set identifier and resource type. The resource types include three types: aperiodic, semi-static, and periodic. Among them, semi-static and periodic indicate the period and bias of the probe reference signal.

[0217] The probe reference signal resource includes the probe reference signal resource identifier, resource mapping, frequency domain location, and resource type. The resource mapping includes the start position and number of symbols. The frequency domain location includes the frequency domain offset and frequency hopping. The resource type includes three types: aperiodic, semi-static, and periodic. Among them, semi-static and periodic indicate the period and offset of the probe reference signal.

[0218] The second user equipment can be UE1 or UE2.

[0219] The base station configures uplink channel measurement configuration information for the first user equipment and the second user equipment based on the terminal capability information of the first user equipment and the second user equipment, and sends the uplink channel measurement configuration information to the first user equipment and the second user equipment through radio resource control messages.

[0220] Prior to this, the base station can first obtain the terminal capability information of the first user equipment and the second user equipment, as well as the intelligent repeater capability information of the intelligent repeater.

[0221] The base station acquires the intelligent repeater capability information of the intelligent repeater and sends capability acquisition request information to the first user equipment and the second user equipment; wherein, the intelligent repeater capability information includes the location information, beam configuration information and multi-antenna transmission capability information of the intelligent repeater.

[0222] After the deployment of a smart repeater, the base station can obtain information about the smart repeater's capabilities.

[0223] It is worth noting that since the intelligent repeater is deployed between the base station and the terminal, it is necessary to consider both the beam management of the backhaul link and the beam management of the access link.

[0224] Among them, the backhaul link is the link between the base station and the smart repeater, and the access link is the link between the smart repeater and the terminal.

[0225] The intelligent repeater capability information may include the intelligent repeater's location information and related capability configuration information. Furthermore, the related capability configuration information may include the intelligent repeater's antenna configuration and multi-antenna transmission capabilities, etc., which are not specifically limited in this exemplary embodiment.

[0226] On the other hand, in order to obtain terminal capability information of the first user equipment and the second user equipment, the base station can also send capability acquisition request information to the first user equipment and the second user equipment.

[0227] The first user equipment and the second user equipment return terminal capability information to the base station according to the capability acquisition request information; wherein, the terminal capability information includes a terminal radio access capability support list, the terminal radio access capability support list includes an uplink feature set supported by a specific carrier, the uplink feature set supported by the specific carrier indicates the list of uplink capabilities supported by the first user equipment and the second user equipment for the corresponding frequency band, and the uplink feature set supported by the specific carrier includes the physical uplink shared channel's support capability for codebook-based multiple input multiple output and the physical uplink shared channel's support capability for non-codebook multiple input multiple output;

[0228] The physical uplink shared channel's support capability for codebook-based multiple input multiple output includes the maximum number of multiple input multiple output layers supported by the physical uplink shared channel and the number of supported probe reference signal resources. The maximum number of multiple input multiple output layers supported by the physical uplink shared channel indicates the number of uplink multiple input multiple output layers, and the number of supported probe reference signal resources is an integer of 1 or 2.

[0229] The physical uplink shared channel's ability to support non-codebook multiple-input multiple-output (MIMO) indicates the number of uplink MIMO layers.

[0230] After the first user equipment and the second user equipment receive the capability acquisition request information sent by the base station, they can send terminal capability information to the base station.

[0231] Specifically, terminal capability information can be in the form of a list of supported wireless access technology capabilities.

[0232] The terminal capability information in the list of supported wireless access technologies may include: the uplink feature set supported by a specific carrier, the PUSCH's support for codebook-based MIMO, and the PUSCH's support for non-codebook-based MIMO.

[0233] Specifically, the uplink feature set supported by a specific carrier is used to indicate the list of uplink capabilities supported by the terminal for that frequency band; the support capability of PUSCH for codebook-based MIMO may also include the maximum number of MIMO layers supported by PUSCH and the number of SRS resources supported. The maximum number of MIMO layers supported by PUSCH is the uplink MIMO layer number, and the number of SRS resources supported can be an integer, such as 1 or 2; the support capability of PUSCH for non-codebook-based MIMO is the uplink MIMO layer number.

[0234] After the base station obtains the terminal capability information of the first user equipment and the second user equipment, as well as the intelligent repeater capability information of the intelligent repeater, the base station can configure uplink channel measurement configuration information for the first user equipment and the second user equipment based on the terminal capability information of the first user equipment and the second user equipment.

[0235] Specifically, the base station configures the uplink transmission parameters of the uplink transmission channel for the first user equipment and the second user equipment through RRC signaling based on the terminal capability information of the first user equipment and the second user equipment, that is, the uplink channel measurement configuration information.

[0236] Specifically, the configuration of this uplink transmission channel can include: transmission configuration. This transmission configuration is an enumeration type, containing two options: "codebook" and "non-codebook".

[0237] If it is "codebook", it instructs the terminal to use codebook-based pre-encoded transmission; if it is "non-codebook", it instructs the terminal to use non-codebook-based pre-encoded transmission, as shown in the txConfig field of the PUSCH configuration in TS 38.331.

[0238] To obtain the first uplink channel state information and the complete uplink channel state information, the base station sends an uplink channel measurement configuration message for uplink channel measurement to the first user equipment and the second user equipment via a radio resource control message. This radio resource control message may be another RRC signaling message.

[0239] The uplink channel measurement configuration information may include resource configuration information for the uplink reference signal SRS used for uplink CSI measurement and uplink CSI reporting configuration information.

[0240] The RRC message may include: terminal identifier and uplink BWP configuration information, etc., which are not specifically limited in this exemplary embodiment.

[0241] The terminal identifier can uniquely identify a terminal, such as the C-RNTI issued by the base station to the terminal. Uplink BWP configuration information can include SRS configuration, specifically the list of added and released SRS resource sets. Further, it includes SRS resource sets and SRS resources. An SRS resource set can include an SRS resource set identifier and resource type, which includes three types: aperiodic, semi-static, and periodic. Semi-static and periodic indicate the SRS period and offset. An SRS resource can include an SRS resource identifier, resource mapping, frequency domain location, and resource type. The resource mapping includes the start position and number of symbols, the frequency domain location includes the frequency domain offset and frequency hopping, and the resource type includes three types: aperiodic, semi-static, and periodic. Semi-static and periodic indicate the SRS period and offset.

[0242] After the base station sends uplink channel measurement configuration information to the first user equipment and the second user equipment, all first user equipment and second user equipment under the coverage of the base station transmit uplink reference signals (SRS) on specific time-frequency resources based on the uplink channel measurement configuration information. The first user equipment sends uplink sounding reference signals to the base station according to the uplink channel measurement configuration information, so that the base station generates first uplink channel state information.

[0243] For the first user equipment outside the coverage area of ​​the intelligent repeater, the first user equipment sends an uplink sounding reference signal (SRS) to the base station based on the uplink channel measurement configuration information sent by the base station, and sends an SRS message to the base station so that the base station generates the first uplink channel state information.

[0244] The second user equipment sends a probe reference signal to the intelligent repeater on the corresponding time-frequency resources according to the uplink channel measurement configuration information, so that the intelligent repeater generates second uplink channel state information and generates a physical uplink control channel message scrambled with the cell radio network temporary identifier with the terminal identifier. The physical uplink control channel message scrambled with the cell radio network temporary identifier and the amplified probe reference signal message are sent to the base station. The base station generates third uplink channel state information between the intelligent repeater and the base station according to the amplified probe reference signal message, so as to obtain the complete uplink channel state information between the base station and the second user equipment based on the second uplink channel state information and the third uplink channel state information.

[0245] The physical uplink control channel message scrambled with the temporary identifier of the cell wireless network includes: terminal identifier, terminal location information, channel quality indicator, recommended precoding matrix indicator, layer indicator and rank indicator. The terminal identifier uniquely identifies the second user equipment, and the recommended precoding matrix indicator is a precoding matrix selected from the codebook.

[0246] For a second user equipment within the coverage area of ​​a smart repeater, it can send an SRS to the smart repeater so that the smart repeater can generate a second uplink channel state information between the second user equipment and the smart repeater.

[0247] Furthermore, the intelligent repeater generates a physical uplink control channel message scrambled with the second uplink channel state information and the terminal identifier, and sends the physical uplink control channel message scrambled with the cell radio network temporary identifier and the amplified probe reference signal message to the base station.

[0248] The base station measures the third uplink channel state information between the smart repeater and the base station based on the amplified detection reference signal message.

[0249] At this point, the base station obtains the complete uplink channel state information between the base station and the second user equipment based on the acquired second uplink channel state information and the generated third uplink channel state information.

[0250] The physical uplink control channel messages scrambled with temporary identifiers for the cell wireless network include: terminal identifier, terminal location information, channel quality indicator, precoding matrix indicator, layer indicator, and rank indicator.

[0251] Specifically, the terminal identifier uniquely identifies the second user equipment, and the precoding matrix indicator can be a precoding matrix selected from the codebook.

[0252] In step S1620, the intelligent repeater determines the second user equipment that meets the uplink transmission conditions based on the second uplink channel state information, and generates a physical uplink control channel message scrambled with the intelligent repeater wireless network temporary identifier and sends it to the base station. The physical uplink control channel message scrambled with the intelligent repeater wireless network temporary identifier includes an uplink control information message, which includes a terminal identifier and an uplink MIMO (Multi-User Multiple Input) and MIMO (Multi-Output) indicator. The terminal identifier uniquely identifies the second user equipment, and the uplink MIMO and MIMO indicator suggests configuring uplink MIMO and MIMO for the second user equipment.

[0253] When a smart repeater collects SRS signals reported by multiple second user devices simultaneously or at very short intervals, the smart repeater can recommend relevant second user devices to perform uplink MU-MIMO transmission based on the second uplink channel status information, terminal location information, and smart repeater capability information in the SRS signals, and send this indication information to the base station through a PUCCH message scrambled by SR-RNTI.

[0254] Among them, the physical uplink control channel message scrambled with the temporary identifier of the smart repeater wireless network includes a newly defined UCI message, which may include the terminal identifier and UL MU-MIMO indication.

[0255] Among these, the terminal identifier can uniquely identify the terminal; the UL MU-MIMO indication can suggest configuring uplink UL MU-MIMO for the involved terminals. In step S1630, the base station performs uplink transmission configuration on the first user equipment and the second user equipment that meets the uplink transmission conditions based on the first uplink channel state information and the complete uplink channel state information to obtain the first uplink configuration information; the base station performs uplink transmission configuration on the intelligent repeater to obtain the third uplink configuration information; the uplink transmission configuration is beam management configuration; and / or

[0256] The base station performs uplink transmission configuration on the second user equipment that meets the uplink transmission conditions based on the complete uplink channel state information to obtain the second uplink configuration information. The base station performs uplink transmission configuration on the intelligent repeater to obtain the third uplink configuration information. The uplink transmission configuration is beam management configuration.

[0257] Based on the intelligent repeater capability information and terminal capability information, the base station performs uplink transmission configuration on the first user equipment and the second user equipment that meets the uplink transmission conditions according to the first uplink channel state information and the complete uplink channel state information to obtain the first uplink configuration information; wherein, the uplink transmission configuration includes the number of uplink transmission layers and the uplink precoding matrix.

[0258] Considering that the wireless environment between the smart repeater and the base station may change dynamically in the deployment scenario of smart repeaters, adaptive dynamic beam management of the backhaul link is required in order to obtain higher gain.

[0259] On the other hand, considering the movement of the terminal, the wireless link between the terminal and the smart repeater will also change dynamically. Therefore, dynamic beam management of the access link is required.

[0260] Therefore, in order to achieve dynamic beam management, the base station first measures the SRS signal sent by the terminal, including the SRS signal directly obtained from the terminal and the SRS signal forwarded from the smart repeater.

[0261] After receiving the SRS signal sent by the first user equipment, the SRS signal of the second user equipment forwarded by the smart repeater, and the PUCCH message scrambled with SR-RNTI containing the uplink MU-MIMO indication message, the base station can comprehensively analyze the first uplink channel state information and complete uplink channel state information, terminal capability information and repeater capability information of the first and second user equipment inside and outside the smart repeater, and perform uplink MU-MIMO pairing on the first and second user equipment involved.

[0262] Since multiple user equipments use the same time-frequency resources and interfere with each other, the base station selects user equipments with less interference to perform uplink MU-MIMO pairing based on the measured uplink channel conditions to achieve uplink MU-MIMO transmission.

[0263] If the base station configures uplink MU-MIMO for the second user equipment within the coverage area of ​​the smart repeater and the first user equipment outside the coverage area of ​​the smart repeater, the base station must configure the uplink transmission based on the smart repeater's capability information. This includes the number of uplink transmission layers and the uplink precoding matrix, etc.

[0264] Based on the intelligent repeater capability information, the base station performs uplink transmission configuration on the second user equipment that meets the uplink transmission conditions according to the complete uplink channel state information to obtain the second uplink configuration information; wherein, the uplink transmission configuration includes the number of uplink transmission layers and the uplink precoding matrix.

[0265] If a base station is configuring uplink MU-MIMO between second user equipment within the coverage area of ​​a smart repeater, the base station needs to perform the uplink MU-MIMO configuration for the second user equipment within the coverage area of ​​the smart repeater, taking into account the smart repeater's capability information, including the number of antenna ports. This configuration may include the number of uplink transmission layers, the uplink precoding matrix, etc.

[0266] In addition, considering that the uplink data sent by the second user equipment needs to be sent to the base station through the intelligent repeater, in order to realize uplink MU-MIMO transmission, the base station not only needs to send the uplink MIMO configuration issued to the second user equipment to the intelligent repeater, but also needs to send uplink MU-MIMO configuration information to the intelligent repeater, that is, the third uplink configuration information.

[0267] The base station sends the first uplink configuration information to the first user equipment and the smart repeater through the physical downlink control channel message scrambled with the cell wireless network temporary identifier, and sends the second uplink configuration information to the smart repeater through the physical downlink control channel message scrambled with the cell wireless network temporary identifier, and sends the third uplink configuration information to the smart repeater through the physical downlink control channel message scrambled with the smart repeater wireless network temporary identifier.

[0268] Among them, the physical downlink control channel message scrambled with the temporary identifier of the cell wireless network includes downlink control information messages, which include precoding information and transmission layer number, sounding reference signal resource indication, antenna port and physical uplink shared channel resource allocation and corresponding modulation and coding schemes;

[0269] The physical downlink control channel message scrambled with the temporary identifier of the smart repeater wireless network includes downlink control information messages. The downlink control information messages include terminal identifiers and uplink multi-user multiple-input multiple-output precoding matrices. The terminal identifier uniquely identifies the second user equipment through the temporary identifier of the cell wireless network and indicates the second user equipment that needs to perform uplink multi-user multiple-input multiple-output transmission.

[0270] After the base station determines the first uplink configuration information, it sends a C-RNTI scrambled PDCCH (Physical downlink control channel) message to the smart repeater and the first user equipment, so that the first user equipment and the second user equipment can obtain the first uplink configuration information obtained by the base station for uplink transmission configuration.

[0271] Specifically, the C-RNTI scrambled PDCCH message contains a newly defined DCI (Downlink Control Information) message, which may include: precoding information and transmission layer number, SRS resource indication, antenna port, and PUSCH resource allocation and corresponding MCS.

[0272] After determining the uplink transmission configuration, the base station can send the C-RNTI scrambled PDCCH message to the smart repeater so that the second user equipment can obtain the second uplink configuration information.

[0273] The C-RNTI scrambled PDCCH message contains a newly defined DCI message, which may also include: precoding information and transmission layer number, SRS resource indication, antenna port, and PUSCH resource allocation and corresponding MCS.

[0274] Furthermore, the base station sends this third uplink configuration information to the smart repeater via a PDCCH message scrambled with SR-RNTI.

[0275] Specifically, the SR-RNTI scrambled PDCCH message contains a newly defined DCI message, which may include the terminal identifier and the uplink MU-MIMO precoding matrix.

[0276] The terminal identifier can be a unique identifier for the terminal via C-RNTI, indicating the terminal that needs to perform uplink MU-MIMO transmission.

[0277] In step S1640, the intelligent repeater saves the third uplink configuration information, and amplifies the first uplink configuration information and the second uplink configuration information before sending them to the second user equipment that meets the uplink transmission conditions.

[0278] After receiving the second and third uplink configuration information from the base station, the intelligent repeater can save the third uplink configuration information from the SR-RNTI scrambled PDCCH message (a newly defined DCI format). Furthermore, it amplifies the C-RNTI scrambled PDCCH message to be sent to the second user equipment and sends it to the second user equipment that meets the uplink transmission conditions, so that the second user equipment receives the first and second uplink configuration information.

[0279] In step S1650, the first user equipment performs uplink data transmission according to the first uplink configuration information, and the second user equipment that meets the uplink transmission conditions performs uplink data transmission according to the first uplink configuration information and the intelligent repeater performs uplink data transmission according to the third uplink configuration information, in order to send uplink data to the base station, and / or the second user equipment that meets the uplink transmission conditions performs uplink data transmission according to the second uplink configuration information and the intelligent repeater performs uplink data transmission according to the third uplink configuration information, in order to send uplink data to the base station.

[0280] The first user equipment precodes and transmits uplink data according to the first uplink configuration information to send uplink data to the base station, and the second user equipment that meets the uplink transmission conditions precodes and transmits uplink data according to the first uplink configuration information to send uplink data to the smart repeater. The smart repeater determines the second user equipment involved in the uplink data that meets the uplink transmission conditions, and sends uplink data to the base station according to the third uplink configuration information.

[0281] Among them, after the second user equipment that meets the uplink transmission conditions receives the C-RNTI scrambled PDCCH message (a newly defined DCI format) sent by the smart repeater, it can obtain the corresponding first uplink configuration information and second uplink configuration information.

[0282] Furthermore, the second user equipment that meets the uplink transmission conditions modulates and codes the uplink data, and uses configurations such as SRI, transport precoding, and transport layer number to precode and transmit the uplink data.

[0283] The second user equipment that meets the uplink transmission conditions precodes and transmits the uplink data according to the second uplink configuration information to send the uplink data to the smart repeater. The smart repeater determines the second user equipment involved in the uplink data that meets the uplink transmission conditions and sends the uplink data to the base station according to the third uplink configuration information.

[0284] After the intelligent repeater receives uplink data sent by the first user equipment and the second user equipment that meets the uplink transmission conditions, it can analyze whether the first user equipment and the second user equipment that meets the uplink transmission conditions are user equipment included in the uplink MU-MIMO configuration.

[0285] When the first user equipment and the second user equipment meeting the uplink transmission conditions are user equipment included in the uplink MU-MIMO configuration, the uplink configuration information is based on the first and / or second uplink configuration information issued by the base station. The intelligent repeater also performs uplink MU-MIMO precoding transmission of the uplink data based on the third uplink configuration information, so that the base station can receive the uplink data.

[0286] In addition, the uplink data received by the smart repeater may not involve a second user device that meets the uplink transmission conditions, in which case corresponding processing can be performed.

[0287] When the intelligent repeater determines that the uplink data involves a second user equipment that does not meet the uplink transmission conditions, it selects uplink MIMO transmission precoding based on the second uplink channel state information and then sends the uplink data to the base station.

[0288] After the intelligent repeater receives uplink data sent by the first user equipment and the second user equipment that meets the uplink transmission conditions, it can analyze whether the first user equipment and the second user equipment that meets the uplink transmission conditions are user equipment included in the uplink MU-MIMO configuration.

[0289] When the first user equipment and the second user equipment that meets the uplink transmission conditions are not user equipment included in the uplink MU-MIMO configuration, a suitable uplink MIMO transmission precoding can be selected for the second user equipment based on the second uplink channel state information of the second user equipment before transmission, so that the base station can receive the uplink data.

[0290] When a smart repeater determines that the uplink data involves a second user equipment that does not meet the uplink transmission conditions, it amplifies the uplink data and sends the amplified uplink data to the base station.

[0291] After the intelligent repeater receives uplink data sent by the first user equipment and the second user equipment that meets the uplink transmission conditions, it can analyze whether the first user equipment and the second user equipment that meets the uplink transmission conditions are user equipment included in the uplink MU-MIMO configuration.

[0292] When the first user equipment and the second user equipment that meets the uplink transmission conditions are not user equipment included in the uplink MU-MIMO configuration, the uplink data can be directly amplified and the amplified uplink data can be forwarded to the base station.

[0293] After receiving uplink data from the first user equipment and the second user equipment, the base station can determine whether the uplink MU-MIMO configuration needs to be changed based on the current first and second uplink channel state information. If so, the uplink transmission configuration of the corresponding user equipment can be updated via control signaling.

[0294] In this application scenario, the uplink transmission method involves the intelligent repeater feeding back the second uplink channel state information between itself and the second user equipment to the base station. This helps the base station obtain complete uplink channel state information between the second user equipment and the base station, assisting in uplink transmission configuration. Furthermore, the base station configures uplink transmission for both the first and second user equipment based on the first and complete uplink channel state information, and also configures uplink transmission for the intelligent repeater. This solves the uplink transmission pairing problem between the second user equipment within the intelligent repeater, and also solves the uplink transmission pairing problem between the second user equipment within the intelligent repeater and the first user equipment outside the intelligent repeater. This helps achieve multi-user, multiple-input, multiple-output uplink transmission, further improving spatial multiplexing gain and uplink channel capacity.

[0295] In addition, it has minimal impact on the terminal and good backward compatibility and deployment feasibility. The uplink transmission method in this application scenario is an enhancement of the existing protocol, requiring minimal modification to the existing protocol and is relatively easy to implement.

[0296] Figure 17 A schematic diagram of the uplink transmission device is shown, such as... Figure 17 As shown, the uplink transmission device 1700 is used for beam management, which simultaneously considers beam management of the access link and beam management of the backhaul link. The beam management of the access link includes dynamic beam management of the access link, and the beam management of the backhaul link also includes dynamic beam management of the backhaul link. The access link is the link between the smart repeater and the second user equipment, and the backhaul link is the link between the base station and the smart repeater. The device includes: a status acquisition module 1710, a device recommendation module 1720, an uplink configuration module 1730, and a data transmission module 1740. Wherein:

[0297] The status acquisition module 1710 is configured to: generate first uplink channel status information between the base station and the first user equipment; generate second uplink channel status information between the smart repeater and the second user equipment; and generate third uplink channel status information between the base station and the smart repeater, so as to obtain complete uplink channel status information between the base station and the second user equipment based on the second uplink channel status information and the third uplink channel status information; wherein the first user equipment is outside the coverage area of ​​the smart repeater, and the second user equipment is within the coverage area of ​​the smart repeater.

[0298] The device recommendation module 1720 is configured so that the intelligent repeater determines the second user equipment that meets the uplink transmission conditions based on the second uplink channel state information, and generates a physical uplink control channel message scrambled with the intelligent repeater wireless network temporary identifier and sends it to the base station; wherein, the physical uplink control channel message scrambled with the intelligent repeater wireless network temporary identifier includes an uplink control information message, the uplink control information message includes: a terminal identifier and an uplink multiple user multiple inputs and multiple outputs indication, the terminal identifier uniquely identifies the second user equipment, and the uplink multiple user multiple inputs and multiple outputs indication suggests configuring uplink multiple user multiple inputs and multiple outputs for the involved second user equipment;

[0299] Uplink configuration module 1730 is configured such that the base station performs uplink transmission configuration on the first user equipment and the second user equipment that meets the uplink transmission conditions based on the first uplink channel state information and the complete uplink channel state information to obtain first uplink configuration information; the base station performs uplink transmission configuration on the intelligent repeater to obtain third uplink configuration information; the uplink transmission configuration is beam management configuration; and / or

[0300] The base station performs uplink transmission configuration on the second user equipment that meets the uplink transmission conditions based on the complete uplink channel state information to obtain second uplink configuration information, and the base station performs uplink transmission configuration on the smart repeater to obtain third uplink configuration information, wherein the uplink transmission configuration is beam management configuration.

[0301] The data transmission module 1740 is configured to allow the first user equipment to send uplink data to the base station according to the first uplink configuration information, and the second user equipment that meets the uplink transmission conditions to send uplink data according to the first uplink configuration information and the intelligent repeater according to the third uplink configuration information, and / or the second user equipment that meets the uplink transmission conditions to send uplink data to the base station according to the second uplink configuration information and the intelligent repeater according to the third uplink configuration information.

[0302] In an exemplary embodiment of the present invention, the base station generates first uplink channel state information between the first user equipment and the base station, the intelligent repeater generates second uplink channel state information between the intelligent repeater and the second user equipment, and the base station generates third uplink channel state information between the base station and the intelligent repeater, so as to obtain complete uplink channel state information between the base station and the second user equipment based on the second uplink channel state information and the third uplink channel state information, including:

[0303] The base station configures uplink channel measurement configuration information for the first user equipment and the second user equipment via radio resource control signaling based on the terminal capability information of the first user equipment and the second user equipment, and sends the uplink channel measurement configuration information to the first user equipment and the second user equipment via radio resource control messages. The configuration of the uplink channel measurement configuration information includes a transmission configuration, which is an enumeration type, including a codebook and a non-codebook. The codebook indicates that the first user equipment and the second user equipment use precoded transmission based on the codebook, and the non-codebook indicates that the first user equipment and the second user equipment indicate that they use precoded transmission based on the non-codebook, including the txConfig field in the Physical Uplink Shared Channel Configuration in TS 38.331.

[0304] The uplink channel measurement configuration information includes resource configuration information for uplink reference signals used for uplink channel state information measurement and uplink channel state information reporting configuration information.

[0305] The radio resource control message includes the terminal identifier and uplink bandwidth configuration information;

[0306] The terminal identifier uniquely identifies a first user equipment or a second user equipment, including a temporary identifier for the cell wireless network;

[0307] The uplink bandwidth configuration information includes the probe reference signal configuration, and further includes a list of additions and releases of the probe reference signal resource set.

[0308] The list for adding and releasing the detection reference signal resource set includes the detection reference signal resource set and the detection reference signal resources.

[0309] The detection reference signal resource set includes a detection reference signal resource set identifier and resource type. The resource type includes three types: aperiodic, semi-static, and periodic. Among them, semi-static and periodic indicate the period and bias of the detection reference signal.

[0310] The probe reference signal resource includes a probe reference signal resource identifier, resource mapping, frequency domain location, and resource type. The resource mapping includes a start position and number of symbols. The frequency domain location includes frequency domain offset and frequency hopping. The resource type includes three types: aperiodic, semi-static, and periodic. Semi-static and periodic indicate the period and offset of the probe reference signal.

[0311] The first user equipment sends an uplink sounding reference signal to the base station according to the uplink channel measurement configuration information, so that the base station generates first uplink channel state information;

[0312] The second user equipment sends a probe reference signal to the smart repeater on the corresponding time-frequency resources according to the uplink channel measurement configuration information, so that the smart repeater generates second uplink channel state information and generates a physical uplink control channel message scrambled with the terminal identifier and the cell radio network temporary identifier, so as to send the physical uplink control channel message scrambled with the cell radio network temporary identifier and the amplified probe reference signal message to the base station. The base station generates third uplink channel state information between the smart repeater and the base station according to the amplified probe reference signal message, so as to obtain complete uplink channel state information between the base station and the second user equipment according to the second uplink channel state information and the third uplink channel state information.

[0313] The physical uplink control channel message scrambled with the temporary identifier of the cell wireless network includes: terminal identifier, terminal location information, channel quality indicator, recommended precoding matrix indicator, layer indicator, and rank indicator. The terminal identifier uniquely identifies the second user equipment, and the recommended precoding matrix indicator is a precoding matrix selected from the codebook.

[0314] In an exemplary embodiment of the present invention, before the base station configures uplink channel measurement configuration information for the first user equipment and the second user equipment based on the terminal capability information of the first user equipment and the second user equipment, the method further includes:

[0315] The base station acquires the intelligent repeater capability information of the intelligent repeater and sends capability acquisition request information to the first user equipment and the second user equipment; wherein, the intelligent repeater capability information includes the location information, beam configuration information and multi-antenna transmission capability information of the intelligent repeater;

[0316] The first user equipment and the second user equipment return terminal capability information to the base station according to the capability acquisition request information; wherein, the terminal capability information includes a terminal radio access capability support list, the terminal radio access capability support list includes an uplink feature set supported by a specific carrier, the uplink feature set supported by the specific carrier indicates the list of uplink capabilities supported by the first user equipment and the second user equipment for the corresponding frequency band, and the uplink feature set supported by the specific carrier includes the physical uplink shared channel's support capability for codebook-based multiple input multiple output and the physical uplink shared channel's support capability for non-codebook multiple input multiple output;

[0317] The physical uplink shared channel's support capability for codebook-based multiple input multiple output includes the maximum number of multiple input multiple output layers supported by the physical uplink shared channel and the number of supported probe reference signal resources. The maximum number of multiple input multiple output layers supported by the physical uplink shared channel indicates the number of uplink multiple input multiple output layers, and the number of supported probe reference signal resources is an integer of 1 or 2.

[0318] The physical uplink shared channel's support capability for non-codebook multiple-input multiple-output (MIMO) indicates the number of uplink MIMO layers.

[0319] In an exemplary embodiment of the present invention, the base station performs uplink transmission configuration on the first user equipment and the second user equipment that meets the uplink transmission conditions based on the first uplink channel state information and the complete uplink channel state information to obtain first uplink configuration information, including:

[0320] Based on the intelligent repeater capability information and the terminal capability information, the base station performs uplink transmission configuration on the first user equipment and the second user equipment that meets the uplink transmission conditions according to the first uplink channel state information and the complete uplink channel state information to obtain first uplink configuration information; wherein, the uplink transmission configuration includes the number of uplink transmission layers and the uplink precoding matrix;

[0321] The base station performs uplink transmission configuration on the second user equipment that meets the uplink transmission conditions based on the complete uplink channel state information to obtain second uplink configuration information, including:

[0322] Based on the intelligent repeater capability information, the base station performs uplink transmission configuration on the second user equipment that meets the uplink transmission conditions according to the complete uplink channel state information to obtain second uplink configuration information; wherein, the uplink transmission configuration includes the number of uplink transmission layers and the uplink precoding matrix.

[0323] In an exemplary embodiment of the present invention, the first user equipment transmits uplink data to the base station according to the first uplink configuration information, and the second user equipment that meets the uplink transmission conditions transmits uplink data according to the first uplink configuration information and the intelligent repeater transmits uplink data according to the third uplink configuration information, and / or the second user equipment that meets the uplink transmission conditions transmits uplink data to the base station according to the second uplink configuration information and the intelligent repeater transmits uplink data according to the third uplink configuration information, including:

[0324] The base station sends the first uplink configuration information to the first user equipment and the smart repeater through a physical downlink control channel message scrambled with a cell radio network temporary identifier, sends the second uplink configuration information to the smart repeater through a physical downlink control channel message scrambled with a cell radio network temporary identifier, and sends the third uplink configuration information to the smart repeater through a physical downlink control channel message scrambled with a smart repeater radio network temporary identifier.

[0325] The physical downlink control channel message scrambled with the temporary identifier of the cell wireless network includes downlink control information messages, which include precoding information and transmission layer number, sounding reference signal resource indication, antenna port and physical uplink shared channel resource allocation and corresponding modulation and coding schemes;

[0326] The physical downlink control channel message scrambled by the temporary identifier of the smart repeater wireless network includes a downlink control information message. The downlink control information message includes a terminal identifier and an uplink multi-user multiple-input multiple-output precoding matrix. The terminal identifier uniquely identifies the second user equipment through the temporary identifier of the cell wireless network, indicating the second user equipment that needs to perform uplink multi-user multiple-input multiple-output transmission.

[0327] The intelligent repeater saves the third uplink configuration information, and amplifies the first uplink configuration information and the second uplink configuration information before sending them to the second user equipment that meets the uplink transmission conditions;

[0328] The first user equipment performs uplink configuration based on the first uplink configuration information, and the second user equipment that meets the uplink transmission conditions performs uplink data pre-encoding and transmission based on the first uplink configuration information and the intelligent repeater performs uplink data pre-encoding and transmission based on the third uplink configuration information to send the uplink data to the base station, and / or the second user equipment that meets the uplink transmission conditions performs uplink data pre-encoding and transmission based on the second uplink configuration information and the intelligent repeater performs uplink data pre-encoding and transmission based on the third uplink configuration information to send the uplink data to the base station.

[0329] In an exemplary embodiment of the present invention, the first user equipment performs pre-coding transmission of uplink data according to the first uplink configuration information, and the second user equipment that meets the uplink transmission conditions performs pre-coding transmission of uplink data according to the first uplink configuration information and the intelligent repeater performs pre-coding transmission of uplink data according to the third uplink configuration information to send the uplink data to the base station, and / or the second user equipment that meets the uplink transmission conditions performs pre-coding transmission of uplink data according to the second uplink configuration information and the intelligent repeater performs pre-coding transmission of uplink data according to the third uplink configuration information to send the uplink data to the base station, including:

[0330] The first user equipment (UE) precodes and transmits uplink data according to the first uplink configuration information to send the uplink data to the base station; and the second UE, which meets the uplink transmission conditions, precodes and transmits uplink data according to the first uplink configuration information to send the uplink data to the intelligent repeater; the intelligent repeater identifies the second UE involved in the uplink data and meets the uplink transmission conditions, and sends the uplink data to the base station according to the third uplink configuration information; and / or

[0331] The second user equipment that meets the uplink transmission conditions precodes and transmits the uplink data according to the second uplink configuration information to send the uplink data to the smart repeater. The smart repeater determines the second user equipment involved in the uplink data that meets the uplink transmission conditions and sends the uplink data to the base station according to the third uplink configuration information.

[0332] In one exemplary embodiment of the present invention, the method further includes:

[0333] When the intelligent repeater determines that the uplink data involves a second user equipment that does not meet the uplink transmission conditions, it selects uplink MIMO transmission precoding based on the second uplink channel state information and then sends the uplink data to the base station; or

[0334] When the intelligent repeater determines that the uplink data involves a second user equipment that does not meet the uplink transmission conditions, it amplifies the uplink data and sends the amplified uplink data to the base station.

[0335] The specific details of the aforementioned uplink transmission device 1700 have been described in detail in the corresponding uplink transmission method, so they will not be repeated here.

[0336] It should be noted that although several modules or units of the uplink transmission device 1700 have been mentioned in the detailed description above, this division is not mandatory. In fact, according to embodiments of this disclosure, the features and functions of two or more modules or units described above can be embodied in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided and embodied by multiple modules or units.

[0337] Furthermore, in an exemplary embodiment of this disclosure, an electronic device capable of implementing the above-described method is also provided.

[0338] The following reference Figure 18 To describe an electronic device 1800 according to such an embodiment of the present invention. Figure 18The electronic device 1800 shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of the present invention.

[0339] like Figure 18 As shown, the electronic device 1800 is presented in the form of a general-purpose computing device. The components of the electronic device 1800 may include, but are not limited to: at least one processing unit 1810, at least one storage unit 1820, a bus 1830 connecting different system components (including storage unit 1820 and processing unit 1810), and a display unit 1840.

[0340] The storage unit stores program code that can be executed by the processing unit 1810, causing the processing unit 1810 to perform the steps described in the "Exemplary Methods" section of this specification according to various exemplary embodiments of the present invention.

[0341] Storage unit 1820 may include readable media in the form of volatile storage units, such as random access memory (RAM) 1821 and / or cache memory 1822, and may further include read-only memory (ROM) 1823.

[0342] Storage unit 1820 may also include a program / utility 1824 having a set (at least one) of program modules 1825, such program modules 1825 including but not limited to: operating system, one or more application programs, other program modules and program data, each or some combination of these examples may include an implementation of a network environment.

[0343] Bus 1830 can represent one or more of several types of bus structures, including memory cell bus or memory cell controller, peripheral bus, graphics acceleration port, processing unit, or local bus using any of the various bus structures.

[0344] Electronic device 1800 can also communicate with one or more external devices 2000 (e.g., keyboard, pointing device, Bluetooth device, etc.), one or more devices that enable a user to interact with electronic device 1800, and / or any device that enables electronic device 1800 to communicate with one or more other computing devices (e.g., router, modem, etc.). This communication can be performed via input / output (I / O) interface 1850. Furthermore, electronic device 1800 can also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN), and / or public networks, such as the Internet) via network adapter 1860. As shown, network adapter 1860 communicates with other modules of electronic device 1800 via bus 1830. It should be understood that, although not shown in the figures, other hardware and / or software modules can be used in conjunction with electronic device 1800, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0345] From the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein can be implemented by software or by combining software with necessary hardware. Therefore, the technical solutions according to the embodiments of this disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (such as a CD-ROM, USB flash drive, external hard drive, etc.) or on a network, including several instructions to cause a computing device (such as a personal computer, server, terminal device, or network device, etc.) to execute the methods according to the embodiments of this disclosure.

[0346] In exemplary embodiments of this disclosure, a computer-readable storage medium is also provided, on which a program product capable of implementing the methods described above is stored. In some possible embodiments, various aspects of the invention may also be implemented as a program product comprising program code that, when the program product is run on a terminal device, causes the terminal device to perform the steps of the various exemplary embodiments of the invention described in the "Exemplary Methods" section above.

[0347] refer to Figure 19 As shown, a program product 1900 for implementing the above-described method according to an embodiment of the present invention is described. It may employ a portable compact disc read-only memory (CD-ROM) and include program code, and may run on a terminal device, such as a personal computer. However, the program product of the present invention is not limited thereto. In this document, the readable storage medium may be any tangible medium containing or storing a program that may be used by or in conjunction with an instruction execution system, apparatus, or device.

[0348] The program product may employ any combination of one or more readable media. A readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of readable storage media (a non-exhaustive list) include: an electrical connection having one or more wires, a portable disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0349] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, carrying readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A readable signal medium may also be any readable medium other than a readable storage medium, capable of sending, propagating, or transmitting programs for use by or in conjunction with an instruction execution system, apparatus, or device.

[0350] The program code contained on the readable medium may be transmitted using any suitable medium, including but not limited to wireless, wired, optical fiber, RF, etc., or any suitable combination thereof.

[0351] Program code for performing the operations of this invention can be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Java and C++, and conventional procedural programming languages ​​such as C or similar languages. The program code can execute entirely on the user's computing device, partially on the user's device, as a standalone software package, partially on the user's computing device and partially on a remote computing device, or entirely on a remote computing device or server. In cases involving remote computing devices, the remote computing device can be connected to the user's computing device via any type of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computing device (e.g., via the Internet using an Internet service provider).

[0352] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the claims.

Claims

1. An uplink transmission method, characterized in that, The method is applied to beam management, which simultaneously considers beam management of access links and beam management of backhaul links. The beam management of access links includes dynamic beam management of the access links, and the beam management of backhaul links also includes dynamic beam management of the backhaul links. The access link is a link between a smart repeater and a second user equipment, and the backhaul link is a link between a base station and a smart repeater. The method includes: The base station generates first uplink channel state information between the first user equipment and the base station; the smart repeater generates second uplink channel state information between the smart repeater and the second user equipment; and the base station generates third uplink channel state information between the base station and the smart repeater, so as to obtain complete uplink channel state information between the base station and the second user equipment based on the second uplink channel state information and the third uplink channel state information; wherein, the first user equipment is outside the coverage area of ​​the smart repeater, and the second user equipment is within the coverage area of ​​the smart repeater. The intelligent repeater determines the second user equipment that meets the uplink transmission conditions based on the second uplink channel state information, and generates a physical uplink control channel message scrambled with the intelligent repeater wireless network temporary identifier and sends it to the base station; wherein, the physical uplink control channel message scrambled with the intelligent repeater wireless network temporary identifier includes an uplink control information message, the uplink control information message includes: a terminal identifier and an uplink multiple user multiple inputs and multiple outputs indication, the terminal identifier uniquely identifies the second user equipment, and the uplink multiple user multiple inputs and multiple outputs indication suggests configuring uplink multiple user multiple inputs and multiple outputs for the involved second user equipment; The base station performs uplink transmission configuration on the first user equipment and the second user equipment meeting the uplink transmission conditions based on the first uplink channel state information and the complete uplink channel state information to obtain first uplink configuration information. The base station performs uplink transmission configuration on the intelligent repeater to obtain third uplink configuration information. The uplink transmission configuration is beam management configuration; and / or The base station performs uplink transmission configuration on the second user equipment that meets the uplink transmission conditions based on the complete uplink channel state information to obtain second uplink configuration information, and the base station performs uplink transmission configuration on the smart repeater to obtain third uplink configuration information, wherein the uplink transmission configuration is beam management configuration. The first user equipment transmits uplink data to the base station according to the first uplink configuration information, and the second user equipment that meets the uplink transmission conditions transmits uplink data according to the first uplink configuration information and the intelligent repeater transmits uplink data according to the third uplink configuration information, and / or the second user equipment that meets the uplink transmission conditions transmits uplink data to the base station according to the second uplink configuration information and the intelligent repeater transmits uplink data according to the third uplink configuration information.

2. The uplink transmission method according to claim 1, characterized in that, The base station generates first uplink channel state information between the first user equipment and the base station; the intelligent repeater generates second uplink channel state information between the intelligent repeater and the second user equipment; and the base station generates third uplink channel state information between the base station and the intelligent repeater, so as to obtain complete uplink channel state information between the base station and the second user equipment based on the second uplink channel state information and the third uplink channel state information, including: The base station configures uplink channel measurement configuration information for the first user equipment and the second user equipment via radio resource control signaling based on the terminal capability information of the first user equipment and the second user equipment, and sends the uplink channel measurement configuration information to the first user equipment and the second user equipment via radio resource control messages. The configuration of the uplink channel measurement configuration information includes a transmission configuration, which is an enumeration type, including a codebook and a non-codebook. The codebook indicates that the first user equipment and the second user equipment use precoded transmission based on the codebook, and the non-codebook indicates that the first user equipment and the second user equipment indicate that they use precoded transmission based on the non-codebook, including the txConfig field in the Physical Uplink Shared Channel Configuration in TS 38.

331. The uplink channel measurement configuration information includes resource configuration information for uplink reference signals used for uplink channel state information measurement and uplink channel state information reporting configuration information. The radio resource control message includes the terminal identifier and uplink bandwidth configuration information; The terminal identifier uniquely identifies a first user equipment or a second user equipment, including a temporary identifier for the cell wireless network; The uplink bandwidth configuration information includes the probe reference signal configuration, and further includes a list of additions and releases of the probe reference signal resource set. The list for adding and releasing the probe reference signal resource set includes the probe reference signal resource set and the probe reference signal resources. The detection reference signal resource set includes a detection reference signal resource set identifier and resource type. The resource type includes three types: aperiodic, semi-static, and periodic. Among them, semi-static and periodic indicate the period and bias of the detection reference signal. The probe reference signal resource includes a probe reference signal resource identifier, resource mapping, frequency domain location, and resource type. The resource mapping includes a start position and number of symbols. The frequency domain location includes frequency domain offset and frequency hopping. The resource type includes three types: aperiodic, semi-static, and periodic. Semi-static and periodic indicate the period and offset of the probe reference signal. The first user equipment sends an uplink sounding reference signal to the base station according to the uplink channel measurement configuration information, so that the base station generates first uplink channel state information; The second user equipment sends a probe reference signal to the smart repeater on the corresponding time-frequency resources according to the uplink channel measurement configuration information, so that the smart repeater generates second uplink channel state information and generates a physical uplink control channel message scrambled with the terminal identifier and the cell radio network temporary identifier, so as to send the physical uplink control channel message scrambled with the cell radio network temporary identifier and the amplified probe reference signal message to the base station. The base station generates third uplink channel state information between the smart repeater and the base station according to the amplified probe reference signal message, so as to obtain complete uplink channel state information between the base station and the second user equipment according to the second uplink channel state information and the third uplink channel state information. The physical uplink control channel message scrambled with the temporary identifier of the cell wireless network includes: terminal identifier, terminal location information, channel quality indicator, recommended precoding matrix indicator, layer indicator, and rank indicator. The terminal identifier uniquely identifies the second user equipment, and the recommended precoding matrix indicator is a precoding matrix selected from the codebook.

3. The uplink transmission method according to claim 2, characterized in that, Before the base station configures uplink channel measurement configuration information for the first user equipment and the second user equipment based on the terminal capability information of the first user equipment and the second user equipment, the method further includes: The base station acquires the intelligent repeater capability information of the intelligent repeater and sends capability acquisition request information to the first user equipment and the second user equipment; wherein, the intelligent repeater capability information includes the location information, beam configuration information and multi-antenna transmission capability information of the intelligent repeater; The first user equipment and the second user equipment return terminal capability information to the base station according to the capability acquisition request information; wherein, the terminal capability information includes a terminal radio access capability support list, the terminal radio access capability support list includes an uplink feature set supported by a specific carrier, the uplink feature set supported by the specific carrier indicates the list of uplink capabilities supported by the first user equipment and the second user equipment for the corresponding frequency band, and the uplink feature set supported by the specific carrier includes the physical uplink shared channel's support capability for codebook-based multiple input multiple output and the physical uplink shared channel's support capability for non-codebook multiple input multiple output; The physical uplink shared channel's support capability for codebook-based multiple input multiple output includes the maximum number of multiple input multiple output layers supported by the physical uplink shared channel and the number of supported probe reference signal resources. The maximum number of multiple input multiple output layers supported by the physical uplink shared channel indicates the number of uplink multiple input multiple output layers, and the number of supported probe reference signal resources is an integer of 1 or 2. The physical uplink shared channel's support capability for non-codebook multiple-input multiple-output (MIMO) indicates the number of uplink MIMO layers.

4. The uplink transmission method according to claim 3, characterized in that, The base station performs uplink transmission configuration on the first user equipment and the second user equipment that meets the uplink transmission conditions based on the first uplink channel state information and the complete uplink channel state information to obtain first uplink configuration information, including: Based on the intelligent repeater capability information and the terminal capability information, the base station performs uplink transmission configuration on the first user equipment and the second user equipment that meets the uplink transmission conditions according to the first uplink channel state information and the complete uplink channel state information to obtain first uplink configuration information; wherein, the uplink transmission configuration includes the number of uplink transmission layers and the uplink precoding matrix; The base station performs uplink transmission configuration on the second user equipment that meets the uplink transmission conditions based on the complete uplink channel state information to obtain second uplink configuration information, including: Based on the intelligent repeater capability information, the base station performs uplink transmission configuration on the second user equipment that meets the uplink transmission conditions according to the complete uplink channel state information to obtain second uplink configuration information; wherein, the uplink transmission configuration includes the number of uplink transmission layers and the uplink precoding matrix.

5. The uplink transmission method according to claim 1, characterized in that, The first user equipment (UE) transmits uplink data to the base station according to the first uplink configuration information, and the second UE, which meets the uplink transmission conditions, transmits uplink data according to the first uplink configuration information and the intelligent repeater according to the third uplink configuration information, and / or the second UE, which meets the uplink transmission conditions, transmits uplink data to the base station according to the second uplink configuration information and the intelligent repeater according to the third uplink configuration information, including: The base station sends the first uplink configuration information to the first user equipment and the smart repeater through a physical downlink control channel message scrambled with a cell radio network temporary identifier, sends the second uplink configuration information to the smart repeater through a physical downlink control channel message scrambled with a cell radio network temporary identifier, and sends the third uplink configuration information to the smart repeater through a physical downlink control channel message scrambled with a smart repeater radio network temporary identifier. The physical downlink control channel message scrambled with the temporary identifier of the cell wireless network includes downlink control information messages, which include precoding information and transmission layer number, sounding reference signal resource indication, antenna port and physical uplink shared channel resource allocation and corresponding modulation and coding schemes; The physical downlink control channel message scrambled by the temporary identifier of the smart repeater wireless network includes a downlink control information message. The downlink control information message includes a terminal identifier and an uplink multi-user multiple-input multiple-output precoding matrix. The terminal identifier uniquely identifies the second user equipment through the temporary identifier of the cell wireless network, indicating the second user equipment that needs to perform uplink multi-user multiple-input multiple-output transmission. The intelligent repeater saves the third uplink configuration information, and amplifies the first uplink configuration information and the second uplink configuration information before sending them to the second user equipment that meets the uplink transmission conditions; The first user equipment performs uplink configuration based on the first uplink configuration information, and the second user equipment that meets the uplink transmission conditions performs uplink data pre-encoding and transmission based on the first uplink configuration information and the intelligent repeater performs uplink data pre-encoding and transmission based on the third uplink configuration information to send the uplink data to the base station, and / or the second user equipment that meets the uplink transmission conditions performs uplink data pre-encoding and transmission based on the second uplink configuration information and the intelligent repeater performs uplink data pre-encoding and transmission based on the third uplink configuration information to send the uplink data to the base station.

6. The uplink transmission method according to claim 5, characterized in that, The first user equipment (UE) transmits the uplink data to the base station based on the first uplink configuration information, and the second UE, which meets the uplink transmission conditions, transmits the uplink data based on the first uplink configuration information and the intelligent repeater, which transmits the uplink data based on the third uplink configuration information. This includes: The first user equipment (UE) precodes and transmits uplink data according to the first uplink configuration information to send the uplink data to the base station; and the second UE, which meets the uplink transmission conditions, precodes and transmits uplink data according to the first uplink configuration information to send the uplink data to the intelligent repeater; the intelligent repeater identifies the second UE involved in the uplink data and meets the uplink transmission conditions, and sends the uplink data to the base station according to the third uplink configuration information; and / or The second user equipment that meets the uplink transmission conditions precodes and transmits the uplink data according to the second uplink configuration information to send the uplink data to the smart repeater. The smart repeater determines the second user equipment involved in the uplink data that meets the uplink transmission conditions and sends the uplink data to the base station according to the third uplink configuration information.

7. The uplink transmission method according to claim 6, characterized in that, The method further includes: When the intelligent repeater determines that the uplink data involves a second user equipment that does not meet the uplink transmission conditions, it selects uplink MIMO transmission precoding based on the second uplink channel state information and then sends the uplink data to the base station; or When the intelligent repeater determines that the uplink data involves a second user equipment that does not meet the uplink transmission conditions, it amplifies the uplink data and sends the amplified uplink data to the base station.

8. An uplink transmission device, characterized in that, This is applied to beam management, which simultaneously considers beam management of the access link and the backhaul link. The beam management of the access link includes dynamic beam management of the access link, and the beam management of the backhaul link also includes dynamic beam management of the backhaul link. The access link is a link between a smart repeater and a second user equipment, and the backhaul link is a link between a base station and a smart repeater. The application includes: The status acquisition module is configured to: generate first uplink channel status information between the base station and the first user equipment; generate second uplink channel status information between the smart repeater and the second user equipment; and generate third uplink channel status information between the base station and the smart repeater, so as to obtain complete uplink channel status information between the base station and the second user equipment based on the second uplink channel status information and the third uplink channel status information; wherein the first user equipment is outside the coverage area of ​​the smart repeater, and the second user equipment is within the coverage area of ​​the smart repeater. The device recommendation module is configured so that the intelligent repeater determines the second user equipment that meets the uplink transmission conditions based on the second uplink channel state information, and generates a physical uplink control channel message scrambled with the intelligent repeater wireless network temporary identifier and sends it to the base station; wherein, the physical uplink control channel message scrambled with the intelligent repeater wireless network temporary identifier includes an uplink control information message, the uplink control information message includes: a terminal identifier and an uplink multiple user multiple inputs and multiple outputs indication, the terminal identifier uniquely identifies the second user equipment, and the uplink multiple user multiple inputs and multiple outputs indication suggests configuring uplink multiple user multiple inputs and multiple outputs for the involved second user equipment; The uplink configuration module is configured such that the base station performs uplink transmission configuration on the first user equipment and the second user equipment that meets the uplink transmission conditions based on the first uplink channel state information and the complete uplink channel state information to obtain first uplink configuration information; the base station performs uplink transmission configuration on the intelligent repeater to obtain third uplink configuration information; and the uplink transmission configuration is beam management configuration; and / or The base station performs uplink transmission configuration on the second user equipment that meets the uplink transmission conditions based on the complete uplink channel state information to obtain second uplink configuration information, and the base station performs uplink transmission configuration on the smart repeater to obtain third uplink configuration information, wherein the uplink transmission configuration is beam management configuration. The data transmission module is configured to allow the first user equipment to send uplink data to the base station according to the first uplink configuration information, and the second user equipment that meets the uplink transmission conditions to send uplink data according to the first uplink configuration information and the intelligent repeater according to the third uplink configuration information, and / or the second user equipment that meets the uplink transmission conditions to send uplink data to the base station according to the second uplink configuration information and the intelligent repeater according to the third uplink configuration information.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the uplink transmission method according to any one of claims 1-7.

10. An electronic device, characterized in that, include: processor; Memory for storing the executable instructions of the processor; The processor is configured to execute the uplink transmission method of any one of claims 1-7 by executing the executable instructions.

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