Wireless connection establishment methods and apparatuses, and terminals, network-side devices and readable storage medium

Abstract

The present application belongs to the technical field of communications. Disclosed are wireless connection establishment methods and apparatuses, and terminals, network-side devices and a readable storage medium. A wireless connection establishment method in the embodiments of the present application comprises: a terminal initiating a random access procedure in a first cell; and the terminal reporting first information in the random access procedure, wherein the first information comprises information of a second cell, and the first information is used for assisting in configuring the terminal to establish an uplink-downlink decoupled wireless connection with the first cell and the second cell.

Description

Wireless connection establishment method, apparatus, terminal, network-side equipment and readable storage medium

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202510125960.9, filed in China on January 27, 2025, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application belongs to the field of communication technology, specifically relating to a wireless connection establishment method, apparatus, terminal, network-side device, and readable storage medium. Background Technology

[0004] In a mobile communication system, after a terminal establishes a wireless connection with a cell, the uplink and downlink supporting the terminal's wireless connection can be provided by different cells.

[0005] In related technologies, after a terminal detects that the signal from a neighboring cell has reached a preset threshold, it reports measurement information to the network-side device. Upon receiving the measurement information, the network-side device performs a comprehensive evaluation based on the information and makes a decision. Because this process takes time, the wireless link establishment process can be lengthy, leading to delays in data transmission and consequently, poor transmission performance. Summary of the Invention

[0006] This application provides a wireless connection establishment method, apparatus, terminal, network-side device, and readable storage medium, which can improve the efficiency and flexibility of establishing uplink and downlink decoupled wireless connections, thereby improving the timeliness and performance of data transmission.

[0007] In a first aspect, a method for establishing a wireless connection is provided, the method comprising: a terminal initiating a random access procedure in a first cell; the terminal reporting first information during the random access procedure; wherein the first information includes information about a second cell, and the first information is used to assist in configuring the terminal to establish an uplink-downlink decoupled wireless connection with the first cell and the second cell.

[0008] Secondly, a wireless connection establishment method is provided, the method comprising: a network-side device receiving first information during a random access process; wherein the first information includes information about a second cell, the first information being used to assist in configuring a terminal to establish an uplink-downlink decoupled wireless connection with the first cell and the second cell.

[0009] Thirdly, a wireless connection establishment apparatus is provided, the apparatus comprising: a processing module and a transmitting module, wherein: the processing module is used to initiate a random access procedure in a first cell; the transmitting module is used to report first information during the random access procedure; wherein the first information includes information about a second cell, and the first information is used to assist in configuring the terminal to establish an uplink-downlink decoupled wireless connection with the first cell and the second cell.

[0010] Fourthly, a wireless connection establishment apparatus is provided, the apparatus comprising: a receiving module; the receiving module being configured to receive first information during a random access process; wherein the first information includes information about a second cell, the first information being used to assist in configuring a terminal to establish an uplink-downlink decoupled wireless connection with the first cell and the second cell.

[0011] Fifthly, a wireless connection establishment apparatus is provided, the apparatus being configured to perform the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0012] In a sixth aspect, a terminal is provided, the terminal including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect.

[0013] In a seventh aspect, a terminal is provided, including a processor and a communication interface, wherein the processor is used to initiate a random access procedure in a first cell; the communication interface is used to report first information during the random access procedure; wherein the first information includes information about a second cell, and the first information is used to assist in configuring the terminal to establish uplink-downlink decoupled wireless connections with the first cell and the second cell.

[0014] Eighthly, a network-side device is provided, the network-side device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect.

[0015] In a ninth aspect, a network-side device is provided, including a processor and a communication interface, wherein the communication interface is used to receive first information during a random access process; wherein the first information includes information about a second cell, and the first information is used to assist in configuring a terminal to establish an uplink-downlink decoupled wireless connection with the first cell and the second cell.

[0016] In a tenth aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or implement the steps of the method described in the second aspect.

[0017] Eleventhly, a wireless communication system is provided, comprising: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the method as described in the first aspect, and the network-side device can be used to perform the steps of the method as described in the second aspect.

[0018] In a twelfth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run programs or instructions to implement the method as described in the first aspect, or to implement the method as described in the third aspect.

[0019] In a thirteenth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the wireless connection establishment method as described in the first aspect, or to implement the steps of the wireless connection establishment method as described in the second aspect.

[0020] In this embodiment, the terminal initiates a random access procedure in a first cell. During the random access procedure, the terminal reports first information, which includes information about a second cell. This first information is used to assist in configuring the terminal to establish a decoupled uplink and downlink radio connection with the first and second cells. By reporting the first information, including the second cell information, in advance during the random access procedure, the network-side equipment can make timely decisions and configure the UE's radio connection, reducing the delay in establishing the radio link. This improves the efficiency and flexibility of establishing a decoupled uplink and downlink radio connection, thereby enhancing the timeliness and performance of data transmission. Attached Figure Description

[0021] Figure 1 is a block diagram of a wireless communication system provided in an embodiment of this application;

[0022] Figure 2A is a schematic diagram of a low-frequency heterogeneous network provided in an embodiment of this application;

[0023] Figure 2B is a second schematic diagram of a high- and low-frequency heterogeneous network provided in an embodiment of this application;

[0024] Figure 3 is a flowchart illustrating one of the wireless connection establishment methods provided in an embodiment of this application;

[0025] Figure 4A is a second schematic flowchart of the wireless connection establishment method provided in the embodiments of this application;

[0026] Figure 4B is a third schematic flowchart of the wireless connection establishment method provided in the embodiments of this application;

[0027] Figure 5A is a fourth flowchart illustrating the wireless connection establishment method provided in the embodiments of this application;

[0028] Figure 5B is a fifth flowchart illustrating the wireless connection establishment method provided in the embodiments of this application;

[0029] Figure 6 is a flowchart of the wireless connection establishment method provided in the embodiments of this application (the sixth one).

[0030] Figure 7 is a flowchart of the wireless connection establishment method provided in the embodiments of this application (the seventh one).

[0031] Figure 8 is a flowchart of the wireless connection establishment method provided in the embodiments of this application (the eighth one).

[0032] Figure 9 is a flowchart of the wireless connection establishment method provided in the embodiment of this application.

[0033] Figure 10 is a schematic diagram of one of the wireless connection establishment devices provided in the embodiments of this application;

[0034] Figure 11 is a second schematic diagram of the structure of the wireless connection establishment device provided in the embodiment of this application;

[0035] Figure 12 is a schematic diagram of the structure of the communication device provided in an embodiment of this application;

[0036] Figure 13 is a schematic diagram of the hardware structure of the terminal provided in the embodiment of this application;

[0037] Figure 14 is a schematic diagram of the hardware structure of the network-side device provided in an embodiment of this application. Detailed Implementation

[0038] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0039] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, the first object can be one or more. Furthermore, "or" in this application indicates at least one of the connected objects. For example, the scope of protection for "A or B" covers at least three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. In addition, the terms "A and / or B," "at least one of A and B," and "at least one of A or B" also cover at least the above three scenarios. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0040] The term "instruction" in this application can be either a direct instruction (or explicit instruction) or an indirect instruction (or implicit instruction). A direct instruction can be understood as one in which the sender explicitly informs the receiver of specific information, the operation to be performed, or the requested result, etc., in the instruction sent. An indirect instruction can be understood as one in which the receiver determines the corresponding information based on the instruction sent by the sender, or makes a judgment and determines the operation to be performed or the requested result, etc., based on the judgment result.

[0041] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), or other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0042] Figure 1 shows a block diagram of a wireless communication system applicable to an embodiment of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a mobile phone, tablet computer, laptop computer, notebook computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR), virtual reality (VR) device, robot, wearable device, flight vehicle, vehicle user equipment (VUE), shipboard equipment, pedestrian user equipment (PUE), smart home (home devices with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game console, personal computer (PC), ATM, or self-service machine, etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among these, in-vehicle devices can also be referred to as in-vehicle terminals, in-vehicle controllers, in-vehicle modules, in-vehicle components, in-vehicle chips, or in-vehicle units, etc. It should be noted that the specific type of terminal 11 is not limited in this application embodiment. Network-side equipment 12 may include access network equipment or core network equipment, wherein access network equipment may also be referred to as Radio Access Network (RAN) equipment, radio access network function, or radio access network unit. Access network equipment may include base stations, Wireless Local Area Network (WLAN) access points (AS), or Wireless Fidelity (WiFi) nodes, etc.The term "base station" can be referred to as Node B (NB), Evolved Node B (eNB), Next Generation Node B (gNB), New Radio Node B (NR Node B), Access Point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B, Transmit / Receive Point (TRP), or any other suitable term in the relevant field, as long as the same technical effect is achieved. The term "base station" is not limited to any specific technical terminology. It should be noted that this application embodiment only uses a base station in an NR system as an example for description and does not limit the specific type of base station.

[0043] It should be noted that the terms "terminal" and "user equipment" in this application are interchangeable.

[0044] Core network equipment, also known as core network nodes, core network functions, or core network elements, includes, but is not limited to, at least one of the following: Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (or L-NEF), and Binding Support. The core network functions include: BSF (Block Network Function), Application Function (AF), Location Management Function (LMF), Gateway Mobile Location Centre (GMLC), and Network Data Analytics Function (NWDAF). It should be noted that this application embodiment only uses core network equipment in the NR system as an example and does not limit the specific type of core network equipment. If the name of the core network equipment mentioned in this application embodiment changes in subsequent protocol versions (e.g., 6G), it will still be within the scope of protection of this application.

[0045] Optionally, the core network equipment can be implemented by one or more functional modules in a single device, or by multiple devices working together; this application does not specifically limit this. It is understood that the aforementioned functional modules can be network elements in hardware devices, software functional modules running on dedicated hardware, or virtualized functional modules instantiated on a platform (e.g., a cloud platform).

[0046] The following explains the terms and related technologies involved in this application.

[0047] Decoupled downlink and uplink wireless connectivity:

[0048] In traditional wireless networks, User Equipment (UE) typically establishes a radio connection with the same cell, including an uplink radio link and a downlink radio link. However, in later heterogeneous networks or networks combining high and low frequencies, the radio connection established between the UE and the same serving cell (or site) does not always have optimal uplink and downlink radio links. For example, the optimal uplink and optimal downlink radio links for a UE do not always correspond to the same cell. Considering this situation, some research has proposed providing the UE's uplink and downlink radio connections through different serving cells or sites, allowing the UE to obtain a preferred uplink or downlink, thereby improving uplink or downlink communication performance.

[0049] Figure 2A illustrates two scenarios for low-frequency heterogeneous networks: co-frequency heterogeneous networks (where the carriers of micro / pico cells and macro cells are the same low-frequency carrier) and heterogeneous frequency networks (where the carriers of micro / pico cells and macro cells are low-frequency carriers of different frequencies). In Figure 2A, because the distance between the UE and the micro / pico cell site is small, the propagation path loss from the UE to the site far from the micro / pico cell is significantly less than the propagation path loss from the UE to the macro cell site. On the other hand, the downlink transmission power of the macro cell (e.g., 20W) is much greater than that of the micro / pico cell (e.g., 1W), making the downlink signal quality of the macro cell meet or better than that of the micro / pico cell. In this case, having the UE establish an uplink radio link with the micro / pico cell for uplink transmission, and having the UE establish a downlink link with the macro cell for downlink transmission, is beneficial for improving the UE's air interface communication performance and also for improving the efficiency of network radio resource utilization.

[0050] Figure 2B illustrates a heterogeneous high- and low-frequency network scenario, including macro cells using low-frequency carriers and cells using high-frequency carriers. High-frequency cells generally have large-bandwidth carriers and high transmission rates, but their coverage area is smaller due to high propagation loss. Furthermore, for the same propagation distance, the propagation loss of high-frequency carriers is significantly higher than that of low-frequency carriers. Considering the higher downlink transmission power and the higher number of transmitting antennas compared to uplink, the downlink coverage area is generally significantly larger than the downlink coverage area, a situation also present in high-frequency carrier cells. To effectively utilize the downlink capacity of high-frequency cells, when a UE moves outside the uplink coverage area of ​​a high-frequency cell but still within its downlink coverage area, the UE can establish a downlink radio link with the high-frequency cell and an uplink radio link with the macro cell, allowing the UE to enjoy the high-speed downlink transmission provided by the high-frequency cell. From a network perspective, this also effectively utilizes high-frequency carrier resources. On the other hand, considering that the downlink data volume is significantly greater than the uplink data volume in real-world networks, operators may use only high-frequency carriers for downlink data transmission instead of using high-frequency carriers for uplink transmission. This eliminates the need for the UE to implement a high-frequency carrier transmitter, reducing UE costs.

[0051] Currently, in information transmission between the UE and network-side equipment (such as a base station), uplink and downlink transmissions are interdependent. For example, the base station uses downlink transmission scheduling signaling to schedule the UE to perform uplink Hybrid Automatic Repeat reQuest (HARQ) transmission or uplink HARQ retransmission. When the UE is operating in Radio Link Control (RLC) Acknowledged Mode (AM), the UE relies on the RLC feedback information received downlink to determine the uplink RLC Protocol Data Unit (PDU). The network-side equipment retransmits PDUs (Power Distribution Units). Based on the signal strength information received from the UE via uplink, it generates power control commands and sends them to the UE via downlink to control the uplink transmission power. Due to the high real-time requirements of HARQ feedback, RLC feedback, and power control feedback, rapid information exchange is needed between the uplink receiving and downlink transmitting functions of the network-side equipment. To facilitate this information exchange, one possible implementation of decoupled uplink and downlink radio connectivity is that at least some signal processing (e.g., RLC layer, Media Access Control (MAC) sublayer, and some channel coding / decoding functions) of the cell providing the uplink radio link and the cell providing the downlink radio link can be processed by the same data processing cloud (e.g., Baseband Unit Pool). In Figures 2A and 2B above, to quickly deliver the necessary information obtained from the uplink radio link to the downlink transmitting function unit, the data processing related to the uplink receiving and downlink transmitting functions is divided into the same data processing cloud.

[0052] It can be understood that the data processing cloud is a cloud platform integrating multiple data management functions. In the information transmission between the UE and the network, the data processing cloud can quickly deliver the necessary information obtained from the uplink radio link to the downlink transmission function unit. For example, the data processing cloud can quickly process and forward information such as HARQ feedback, RLC feedback, and power control feedback to ensure the real-time performance and accuracy of information interaction.

[0053] Random access:

[0054] To support beam-based random access, New Radio (NR) defines a random access resource allocation mechanism based on the correspondence between uplink random access resources and cell discovery signal synchronization signal and broadcast signal block (SSB) beams. Its uplink random access resources are evenly distributed across different SSB beams or SSB beam sets. Random access resources include the Physical Random Access Channel Occasion (PO) and the PRACH preamble; an SSB beam can be assigned multiple POs, or an SSB beam set can share a single PO.

[0055] The traditional Random Access (RACH) procedure typically involves four steps: the UE sends a PRACH Preamble to the base station; the UE receives a Random Access Response (RAR) from the base station, adjusts the uplink transmission time based on the timing advance carried in the RAR, sends Message 3 (Msg3) based on the scheduling configuration carried in the RAR, and carries identification information and service request information in Msg3; finally, the UE receives contention resolution information from the base station, marking the completion of the random access procedure.

[0056] In addition, NR supports a two-step random access procedure. In the first step, the UE sends the PRACH preamble and Msg3 Physical Uplink Shared Channel (PUSCH) to the base station. In the second step, the UE receives a response message from the base station, including timing adjustment information such as Time Advance (TA) and an indication of successful access (i.e., the UE's identifier). If the received UE identifier matches its own identifier, it indicates that the UE has successfully accessed the network.

[0057] Existing 5G and future 6G networks, due to their large carrier bandwidth and the use of Multiple-Input Multiple-Output (MIMO) technology, have high data rates. Most data bursts generated by intelligent applications can be transmitted within a very short time (e.g., tens to hundreds of milliseconds). If the UE establishes a decoupled uplink / downlink radio connection according to the procedures outlined in the relevant technologies, for most data bursts, the service data may have already been transmitted, or at least largely transmitted, before the connection can be established according to the aforementioned procedures. This renders the established decoupled uplink / downlink radio connection ineffective in many cases. Consequently, the network cannot achieve the network capacity improvement brought about by uplink / downlink decoupling, and users cannot experience the user speed improvement brought about by uplink decoupling. Furthermore, in heterogeneous co-frequency networks, when macro cells and micro / pico cells share the same carrier frequency, if the UE cannot establish a decoupled uplink / downlink radio connection in a timely manner, users at the edge of micro / pico cells will need to use high power to transmit uplink data to the macro cell due to the greater distance between the UE and the macro cell. This will cause significant interference to the uplink transmission in micro / pico cells. Therefore, a more efficient and faster radio link establishment method is urgently needed to adapt to the demands of high data rates and complex network environments.

[0058] The wireless connection establishment method provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0059] Figure 3 is a flowchart illustrating the wireless connection establishment method provided in an embodiment of this application. As shown in Figure 3, the wireless connection establishment method may include the following steps 201 and 202:

[0060] Step 201: The terminal initiates a random access procedure in the first cell.

[0061] In some embodiments of this application, the first cell is the terminal's camping cell; or, the first cell is a neighboring cell of the camping cell.

[0062] In some embodiments of this application, the highest priority neighboring cell is selected from at least one neighboring cell of the terminal's camping cell, where the first cell is the first cell.

[0063] The selection priority mentioned above is determined by the neighbor cell selection principle based on propagation path loss.

[0064] In some embodiments of this application, the protocol predefined neighbor cell selection principle based on propagation path loss includes determining the priority order of neighbor cells based on the principle that the lower the propagation path loss or the higher the downlink signal strength, the higher the priority when multiple co-frequency neighbor cells meet the requirements of being the first cell, and selecting the neighbor cell with the highest priority as the first cell to initiate random access.

[0065] Step 202: During the random access procedure, the terminal reports the first piece of information.

[0066] The first information mentioned above includes information about the second cell, which is used to assist the configuration terminal in establishing uplink-downlink decoupled wireless connections with the first and second cells.

[0067] In some embodiments of this application, the second cell is the terminal's registered cell; or, the second cell is a neighboring cell of the registered cell. For example, the first cell is the terminal's registered cell, and the second cell is a neighboring cell of that registered cell; or, the first cell is a neighboring cell of the terminal's registered cell, and the second cell is the terminal's registered cell.

[0068] It should be noted that the term "resident cell" in this application can be replaced with "service cell".

[0069] In some embodiments of this application, the terminal can initiate a random access procedure in the first cell and send information about the second cell to the network-side device during the random access procedure. The network-side device can configure the terminal to establish an uplink-downlink decoupled wireless connection with the first cell and the second cell based on the information about the second cell.

[0070] In some embodiments of this application, the network-side equipment may be a base station, a transmit / receive point (TRP), etc.

[0071] In some examples, taking the first cell as the terminal's camping cell and the second cell as a neighboring cell of the camping cell, the terminal initiates a random access procedure in the camping cell and sends the information of the neighboring cell to the network-side device during the random access procedure. This allows the network-side device to configure the terminal to establish uplink-downlink decoupled wireless connections with the camping cell and the neighboring cell based on the information of the neighboring cell.

[0072] In some examples, the first cell is a neighboring cell of the terminal's camping cell, and the second cell is the terminal's camping cell. The terminal initiates a random access procedure in the neighboring cell and sends the information of the camping cell to the network-side device during the random access procedure. This allows the network-side device to configure the terminal to establish uplink-downlink decoupled wireless connections with the camping cell and the neighboring cell based on the information of the neighboring cell.

[0073] In some embodiments of this application, the uplink-decoupled wireless connection includes a downlink wireless connection and an uplink wireless connection, which correspond to one of a first cell and a second cell, respectively, and the cells corresponding to the downlink wireless connection and the uplink wireless connection are different.

[0074] For ease of description, the wireless connection in this application may be referred to as a connection.

[0075] In some embodiments of this application, the first information mentioned above includes at least one of the following:

[0076] The signage for the second residential area;

[0077] The local identifier of the second cell, which is used to indicate the second cell;

[0078] The carrier frequency of the second cell;

[0079] Measurement results for the second area;

[0080] The third offset is the offset of the measurement result of the second cell relative to the first threshold;

[0081] Instructions for the second residential area.

[0082] In some embodiments of this application, the cell identifier of the second cell includes, but is not limited to, at least one of the following: Physical Cell Identity (PCI), Cell Global Identifier (CGI), etc.

[0083] In some embodiments of this application, the local identifier of the second cell can be the serial number of the second cell in the neighboring cell list.

[0084] It should be noted that this serial number is assigned when the network-side equipment (such as a base station) configures the neighbor cell list, and is used to uniquely identify a neighbor cell in the list. When a terminal needs to report neighbor cell information, it can use this local identifier to indicate a specific neighbor cell without reporting detailed parameters such as the cell's PCI, CGI, and carrier information, thereby reducing overhead.

[0085] In this embodiment, the terminal reports the cell identifier or local identifier of the second cell during the random access process, enabling the network-side device to quickly identify and locate the second cell that the terminal is about to access or is considering accessing, thereby reserving and configuring resources in advance and improving access efficiency.

[0086] In some embodiments of this application, the measurement results of the second cell include, but are not limited to, at least one of the following: Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), Path Loss, Signal-to-Interference-plus-Noise Ratio (SINR), Bit Error Rate, etc.

[0087] In some embodiments of this application, the first offset may include the offset of the reference signal received power of the second cell relative to a preset reference signal received power threshold, or the offset of the path loss of the second cell relative to a preset path loss threshold.

[0088] In this embodiment of the application, during the random access process, the terminal reports the measurement information of the second cell, and the network-side device can quickly learn about the communication status between the terminal and the second cell, thereby quickly performing access-related configuration, adjusting wireless parameters and other operations, thereby improving access efficiency.

[0089] The wireless connection establishment method provided in this application embodiment involves a terminal initiating a random access procedure in a first cell. During the random access procedure, the terminal reports first information, which includes information about a second cell. This first information is used to assist in configuring the terminal to establish a decoupled uplink and downlink wireless connection with the first and second cells. By reporting the first information, including the second cell information, in advance during the random access procedure, the network-side equipment can make timely decisions and configure the UE's wireless connection, reducing the delay in wireless link establishment. This improves the efficiency and flexibility of establishing a decoupled uplink and downlink wireless connection, thereby enhancing the timeliness and performance of data transmission.

[0090] In some embodiments of this application, the wireless connection establishment method provided in this application may include steps 203 and 204:

[0091] Step 203: The terminal performs neighbor cell measurement based on the neighbor cell measurement configuration.

[0092] Step 204: The terminal determines the first information based on the measurement results of neighboring cells.

[0093] The aforementioned neighbor cell measurement configuration is used for terminal measurement of cells that can provide uplink and downlink decoupled wireless connections. These cells include cells that provide connections for uplink information transmission or cells that provide connections for downlink information transmission.

[0094] In some embodiments of this application, the above-described neighbor cell measurement configuration is used to configure at least one of the following:

[0095] Perform neighbor cell measurements before the random access procedure;

[0096] Conditions that trigger neighboring cell measurements;

[0097] Neighbor cell measurement reporting based on propagation path loss;

[0098] During the random access process, information about neighboring cells is reported.

[0099] In some embodiments of this application, the neighbor cell measurement configuration can be configured to allow the terminal to perform neighbor cell measurements before the random access procedure. This enables the terminal to select a suitable cell for access, thereby improving access success rate and communication quality.

[0100] In some embodiments of this application, the conditions for triggering neighbor cell measurements include, but are not limited to, at least one of the following: the downlink signal strength of the terminal in the stationary cell is lower than a first threshold or the propagation path loss is higher than a second threshold; or the stationary cell of the terminal only provides downlink transmission. Thus, by configuring neighbor cell measurements to be performed when the downlink signal strength of the terminal in the stationary cell is lower than the first threshold or the propagation path loss is higher than the second threshold, or when the stationary cell only provides downlink transmission, neighbor cell measurement reporting can be performed based on real-time communication conditions, thereby ensuring communication quality.

[0101] In some embodiments of this application, the neighbor cell measurement configuration can be configured to perform neighbor cell measurement and reporting based on propagation path loss, allowing the terminal to consider propagation path loss when reporting measurement results. Thus, through neighbor cell measurement and reporting based on propagation path loss, network-side devices can accurately understand the signal coverage of each cell, thereby making reasonable resource allocation decisions.

[0102] In some embodiments of this application, the neighbor cell measurement configuration can configure the terminal to report the measured neighbor cell information (i.e., neighbor cell measurement results) during the random access process, thereby enabling dynamic adjustment of strategies during the access process, such as switching to a cell with a better signal, thereby improving access efficiency and success rate.

[0103] In some embodiments of this application, the information of the neighboring cells mentioned above can be the measurement results of the neighboring cells, including but not limited to at least one of the following: reference signal received power, path loss, signal-to-noise ratio, etc.

[0104] In some embodiments of this application, the terminal can perform neighbor cell measurement based on neighbor cell information related to the uplink-downlink decoupled wireless connection configured by the network-side device. Then, based on the measured neighbor cell measurement results, a second cell is determined from at least one neighbor cell, and the information of the second cell is reported during the random access process.

[0105] In some embodiments of this application, steps 203 and 204 described above can be performed before the terminal reports the first information in step 202 described above.

[0106] In this embodiment, the terminal can perform neighbor cell measurement on cells that can provide uplink-downlink decoupled radio connections according to the neighbor cell measurement configuration, and determine the information of the second cell reported during the random access process based on the neighbor cell measurement results, thereby quickly and reliably establishing uplink-downlink decoupled radio connections.

[0107] In some embodiments of this application, the wireless connection method provided in this application may include the following step 205:

[0108] Step 205: The terminal obtains the neighboring cell measurement configuration from the terminal's registered cell.

[0109] In some embodiments of this application, the wireless connection method described above may include step 206 or step 207:

[0110] Step 206: The terminal determines the cell where it is camped as the first cell.

[0111] Step 207: The terminal identifies one of the neighboring cells of the terminal's current cell as the first cell.

[0112] In some embodiments of this application, the terminal may determine whether to initiate a random access procedure in the cell where it is camped or in a neighboring cell of the cell where it is camped.

[0113] In some embodiments of this application, the terminal may determine the first cell based on the cell selection configuration.

[0114] In some embodiments of this application, the cell selection configuration includes at least one of the following:

[0115] ① The signal quality threshold of the cell where the terminal is camped;

[0116] ②The transmission path loss threshold within the residential community;

[0117] ③ Signal quality threshold of neighboring cells in the residential area;

[0118] ④ Propagation path loss threshold of neighboring cells;

[0119] ⑤ Frequency priority between the residential community and neighboring communities;

[0120] ⑥ First offset, which is used to compare the propagation path loss of co-frequency neighboring cells and the stationed cell;

[0121] ⑦ Second offset, which is used to compare the downlink signal strength of co-frequency neighboring cells and the stationed cell;

[0122] ⑧ First random access indication, which is used to instruct the terminal to initiate a random access procedure in the stationary cell or a neighboring cell;

[0123] ⑨ Protocol predefined configuration, used to configure the terminal to initiate random access for transmitting uplink information first;

[0124] ⑩ Cities where the terminal is stationed: This configuration is used to configure the terminal to report information about the cells where it is stationed when it initiates random access to a neighboring cell.

[0125] In some examples, when the RSRP of the stationary cell measured by the terminal is higher than a preset threshold or the path loss is lower than another preset threshold, the stationary cell is selected as the first cell, and random access is initiated in the current stationary cell.

[0126] In some examples, when the RSRP of a neighboring cell measured by the terminal is higher than a preset threshold or the path loss is lower than another preset threshold, the neighboring cell is selected as the first cell, and random access is initiated in the neighboring cell.

[0127] In some examples, when the propagation path loss of a neighboring cell is below the third threshold, or the downlink signal strength is above the fourth threshold, and the frequency priority of the neighboring cell is higher than the priority of the stationed cell, it is determined that the uplink of the neighboring cell meets the requirements to be the first cell, and random access can be initiated in the neighboring cell and the information of the stationed cell can be reported.

[0128] In some examples, when the propagation path loss of a neighboring cell on the same frequency as the host cell is lower than the first offset of the propagation path loss of the host cell, or when the downlink signal strength of a neighboring cell on the same frequency as the host cell is higher than the second offset of the downlink signal strength of the host cell (including cases where the offset is positive, negative, or 0 dB), it is determined that the neighboring cell meets the requirements to be the first cell, and random access is initiated in the neighboring cell and the information of the host cell is reported.

[0129] In this embodiment, by setting signal quality thresholds and propagation path loss thresholds for the stationary cell, as well as signal quality and propagation path loss thresholds for neighboring cells, it can be ensured that the terminal is stationed in a cell with sufficiently good signal quality, thereby reducing dropped calls or communication interruptions caused by weak signals and improving connection stability. Frequency priority configuration allows the terminal to optimize resource allocation based on frequency usage and network load, avoiding network congestion and improving overall network performance. By comparing the propagation path loss and downlink signal strength of neighboring cells and the stationary cell on the same frequency, the terminal can be more flexibly guided to select cells with lighter loads, achieving load balancing. The first random access indication clearly indicates when the terminal should initiate a random access procedure, reducing blind attempts and improving access efficiency. Protocol predefined configuration enables the terminal to automatically initiate connection requests under specific circumstances, simplifying the process. The stationary cell information reporting configuration allows the terminal to report information about the stationary cell when a neighboring cell initiates random access, enabling the rapid and reliable establishment of uplink-downlink decoupled wireless connections with the stationary cell and neighboring cells.

[0130] In some embodiments of this application, steps 206 and 207 described above may be performed before step 201 described above.

[0131] In some embodiments of this application, the wireless connection establishment method provided in this application may include the following steps 208 and 209:

[0132] Step 208: The terminal establishes a first connection with the first cell for downlink information transmission.

[0133] Step 209: The terminal establishes a second connection with the second cell for uplink information transmission.

[0134] In some embodiments of this application, the terminal may first establish a first connection with a first cell and then establish a second connection with a second cell; or first establish a second connection with a second cell and then establish a first connection with a first cell; or simultaneously establish a first connection with the first cell and a second connection with the second cell.

[0135] In some examples, taking the first cell as the stationed cell of the terminal and the second cell as a neighboring cell of the stationed cell, the terminal establishes a first connection with the stationed cell for downlink information transmission and a second connection with the neighboring cell for uplink information transmission.

[0136] In some examples, taking a first cell as a neighboring cell of the terminal's camping cell and a second cell as the terminal's camping cell as an example, the terminal establishes a first connection with the neighboring cell for downlink information transmission and a second connection with the camping cell for uplink information transmission.

[0137] It is understood that the first connection can be used to receive data or information, such as web page content, video streams, messages, etc.; the second connection can be used to send data or information, such as user input, file uploads, voice calls, etc.

[0138] In some embodiments of this application, the wireless connection establishment method provided in this application may further include the following steps 210 and 211:

[0139] Step 210: The terminal establishes a third connection with the first cell for uplink information transmission.

[0140] Step 211: The terminal establishes a fourth connection with the second cell for downlink information transmission.

[0141] In some embodiments of this application, the terminal may first establish a third connection with the first cell and then establish a fourth connection with the second cell; or first establish a fourth connection with the second cell and then establish a third connection with the first cell; or simultaneously establish a third connection with the first cell and a fourth connection with the second cell.

[0142] In some examples, taking the first cell as the stationed cell of the terminal and the second cell as a neighboring cell of the stationed cell, the terminal establishes a third connection with the stationed cell for uplink information transmission and a fourth connection with the neighboring cell for downlink information transmission.

[0143] In some examples, taking the first cell as a neighboring cell of the terminal's camping cell and the second cell as the terminal's camping cell as an example, the terminal establishes a third connection with the neighboring cell for uplink information transmission and a fourth connection with the camping cell for downlink information transmission.

[0144] It is understandable that the third connection can be used to send data or information, such as user input, file upload, voice calls, etc., and the fourth connection can be used to receive data or information, such as web page content, video streams, messages, etc.

[0145] In this embodiment of the application, the terminal can establish a first connection for downlink information transmission and a second connection for uplink information transmission with the first cell and the second cell respectively through a random access procedure, thereby enabling the rapid and reliable establishment of uplink-downlink decoupled wireless connections and improving communication performance.

[0146] In some embodiments of this application, the wireless connection establishment method provided in this application may include the following step 212:

[0147] Step 212: The terminal receives the second information from the network-side device.

[0148] The second information is used to configure the uplink-downlink decoupled wireless connection; the second information includes at least one of the following: the relevant configuration information of the first cell and the relevant configuration information of the second cell.

[0149] In some embodiments of this application, the second information is carried by message 4 or by message B.

[0150] It should be noted that message 4, namely Msg4, and message B, namely MsgB, are messages sent by the network-side device to the terminal during the random access process. They are mainly used to confirm that the terminal's random access request has been successfully received and processed, and to allocate the necessary resources to the terminal for subsequent communication.

[0151] It is understandable that in a 4-step random access (RA) procedure, this second information can be carried by message 4 in the random access procedure, and in a 2-step random access (RA) procedure, this second information can be carried by message B in the random access procedure.

[0152] In some embodiments of this application, the relevant configuration information of the first cell may include at least one of the following: carrier configuration, uplink / downlink decoupling parameters, cell-specific parameters (such as cell ID, cell frequency, cell search priority), random access channel configuration, access level restrictions, access preamble, etc.

[0153] In some embodiments of this application, the relevant configuration information of the second cell may include at least one of the following: carrier configuration, uplink / downlink decoupling parameters, cell-specific parameters (such as cell ID, cell frequency, etc.), random access channel configuration, access preamble, etc.

[0154] In this embodiment of the application, by carrying at least one of the relevant configuration information of the first cell and the second cell in message 4 or message B, the terminal can correctly establish or switch wireless connections through the relevant configuration information, thereby quickly and reliably establishing uplink-downlink decoupled wireless connections during random access.

[0155] In some embodiments of this application, step 202 described above can be implemented by step 202a:

[0156] Step 202a: During the random access procedure, the terminal sends the first information in the first cell.

[0157] The aforementioned first information is carried by message 3, message A, or message 5.

[0158] In some embodiments of this application, the first information may be carried by message 3, message A or message 5, and may also be carried by other messages. This application does not limit this.

[0159] It should be noted that message 3, namely Msg3, and message A, namely MsgA, are control messages sent by the terminal to the network-side device. They typically contain the terminal's random access identifier and initial access parameters, used to inform the network-side device of the terminal's identity and request to establish a connection; message 5 can be an RRC Setup Complete message.

[0160] It is understandable that in a 4-step random access (RA) procedure, this first information can be carried by message 3 in the random access procedure, and in a 2-step random access (RA) procedure, this first information can be carried by message A in the random access procedure.

[0161] For example, taking the first cell as the stationed cell of the terminal, the terminal can send message 3 in the stationed cell during the random access process. Message 3 carries relevant information about neighboring cells.

[0162] In this embodiment of the application, by carrying information about the second cell in message 3, message A or message 5 during the random access process, the network-side device can identify the terminal and allocate resources to it more quickly, thereby shortening the access process time and enabling the terminal to quickly establish a decoupled uplink and downlink wireless connection during the random access process.

[0163] In some embodiments of this application, the wireless connection establishment method provided in this application may include at least one of the following steps 213 to 215:

[0164] Step 213: The terminal sends the first random access signal in the first cell.

[0165] The aforementioned first random access signal is used to establish a first connection for downlink information transmission in the first cell.

[0166] Step 214: The terminal receives the first configuration information in the first cell.

[0167] The first configuration information is used to configure the uplink-downlink decoupled wireless connection; the first configuration information includes at least one of the following: configuration information of the first cell and configuration information of the second cell.

[0168] Step 215: Based on the first configuration information, the terminal sends a second random access signal in the second cell. The second random access signal is used to establish a second connection for uplink information transmission in the second cell.

[0169] In some embodiments of this application, the first random access signal may be a random access signal transmitted through a physical random access channel.

[0170] In some embodiments of this application, the first random access signal may correspond to Msg1 or MsgA.

[0171] In some embodiments of this application, the first random access signal carries at least a random access preamble.

[0172] In some embodiments of this application, the relevant configuration information of the first cell includes, but is not limited to, at least one of the following:

[0173] Uplink / downlink decoupling configuration;

[0174] Community configuration;

[0175] Switching indicator.

[0176] For example, the above uplink and downlink decoupling configuration includes, but is not limited to, at least one of the following: frequency bands used for uplink and downlink, time slot configuration, and power control parameters.

[0177] For example, the above cell configuration includes, but is not limited to, at least one of the following: such as cell ID, cell frequency.

[0178] For example, the handover instruction described above is used to instruct the terminal to perform a cell handover.

[0179] It should be noted that the explanation of the relevant configuration information of the second cell can be found in the description of the relevant configuration information of the first cell, and will not be repeated here.

[0180] In some embodiments of this application, after the terminal transmits a second random access signal in the second cell, it receives a timing advance command (TAC) corresponding to the second random access signal. For example, the terminal may transmit the timing advance command corresponding to the second random access signal in a third cell.

[0181] In some embodiments of this application, the terminal may utilize the uplink-downlink decoupled wireless connection to perform at least one of the following:

[0182] Send signaling or uplink data to the second cell;

[0183] Receive signaling or downlink data in the first cell.

[0184] For example, the signaling may include at least one of the following: Radio Resource Control (RRC) establishment instruction, RRC configuration instruction, RRC reconfiguration completion instruction, measurement result reporting, terminal capability reporting, etc.

[0185] The following examples illustrate the wireless connection establishment method provided in the embodiments of this application.

[0186] In some examples, the terminal initiates random access from the cell providing downlink radio connectivity to establish an uplink-decoupled radio connection. The establishment process for this uplink-decoupled radio connection is as follows:

[0187] For example, as shown in Figure 4A, taking cell 4 (the first cell) as the cell providing the connection for downlink information transmission and cell 3 (the second cell) as the cell providing the connection for uplink information transmission as an example, the process of establishing a decoupled uplink and downlink wireless connection based on the 4-step RA procedure may include the following steps 31 to 36:

[0188] Step 31: After the terminal determines cell 4, it sends the first random access signal.

[0189] The first random access signal is used to establish a first connection for downlink information transmission in cell 4.

[0190] Step 32: The terminal receives a random access response message in cell 4.

[0191] Step 33: The terminal sends message 3 in cell 4, which carries relevant information about cell 3;

[0192] Step 34: The terminal receives a contention resolution message and / or terminal configuration information in cell 4.

[0193] The terminal configuration information includes relevant configuration information for cell 4 and / or cell 3, which is used to configure the uplink and downlink decoupled wireless connection.

[0194] Step 35: The terminal sends a second random access signal in cell 3.

[0195] Step 36: The terminal receives TAC in cell 4.

[0196] For example, the terminal can send a second random access signal in cell 3 based on the terminal configuration information; and after sending the second random access signal, receive timing advance information corresponding to the second random access signal in cell 4.

[0197] For example, the above method may further include steps 37 and 38:

[0198] Step 37: The terminal can use the uplink-downlink decoupled radio connection to transmit signaling (such as RRC establishment / configuration / reconfiguration completion indication, measurement result report, terminal capability report, etc.) or uplink data to cell 3 and receive signaling or downlink data in cell 4.

[0199] It should be noted that cells 3 and 4 can exchange information during the random access process.

[0200] For example, as shown in Figure 4B, taking cell 4 (the first cell) as the cell providing the connection for downlink information transmission and cell 3 (the second cell) as the cell providing the connection for uplink information transmission as an example, the process of establishing a decoupled uplink and downlink wireless connection based on the 2-step RA procedure may include the following steps 41 to 45:

[0201] Step 41: After the terminal determines cell 4, it sends the first random access information MsgA.

[0202] For example, the first random access information is used to establish a first connection for downlink information transmission in cell 4.

[0203] MsgA carries information about cell 3, and may include PRACH preamble signal and connection establishment request information carried by MsgA PUSCH.

[0204] Step 42: The terminal receives the MsgB message in cell 4.

[0205] MsgB is used to carry contention resolution instructions, terminal configuration information, TAC and other information. The terminal configuration information includes the relevant configuration information of cell 3 and / or the relevant configuration information of cell 4, which is used to configure the uplink and downlink decoupled radio connection.

[0206] Step 43: The terminal sends a second random access signal in cell 3.

[0207] Step 44: The terminal receives timing advance information in cell 4.

[0208] For example, the terminal sends a second random access signal in cell 3 based on the terminal configuration information; and after sending the second random access signal, it receives timing advance information corresponding to the second random access signal in cell 4.

[0209] For example, the above method may further include the following step 45:

[0210] Step 45: The terminal uses the uplink-downlink decoupled wireless connection to transmit uplink signaling or uplink data to cell 3; or, receives downlink signaling or downlink data in cell 4.

[0211] In this embodiment, the terminal initiates a random access procedure by using a first cell that provides a downlink wireless connection and reports information about a second cell that provides an uplink wireless connection during the random access process. Then, based on the terminal configuration information sent by the network-side device, it establishes a decoupled uplink and downlink wireless connection. This allows for the rapid establishment of a decoupled uplink and downlink wireless connection with the first and second cells during the random access process, simplifying the network access steps and reducing access latency.

[0212] In some embodiments of this application, the wireless connection establishment method provided in this application may include at least one of the following steps 216 to 218:

[0213] Step 216: The terminal sends a third random access signal in the first cell.

[0214] The aforementioned third random access signal is used to establish a third connection for uplink information transmission in the first cell.

[0215] Step 217: The terminal receives the second configuration information in the first cell.

[0216] The second configuration information is used to configure the uplink-downlink decoupled wireless connection; the second configuration information includes at least one of the following: relevant configuration information of the first cell and relevant configuration information of the second cell.

[0217] Step 218: Based on the second configuration information, the terminal establishes a fourth connection in the second cell for downlink information transmission.

[0218] In some embodiments of this application, the aforementioned third random access signal may be a random access signal transmitted through a physical random access channel.

[0219] In some embodiments of this application, the third random access signal may correspond to Msg1 or MsgA.

[0220] In some embodiments of this application, the third random access signal carries at least a random access preamble.

[0221] It should be noted that the explanation of the relevant configuration information of the first cell and the second cell can be found in the relevant descriptions in the above embodiments, and will not be repeated here.

[0222] The following examples illustrate the wireless connection establishment method provided in the embodiments of this application.

[0223] In some examples, the terminal initiates random access from the cell providing uplink radio connectivity to establish an uplink-decoupled radio connection. The establishment process for this uplink-decoupled radio connection is as follows:

[0224] For example, as shown in Figure 5A, taking cell 4 (the first cell) as the cell providing the connection for downlink information transmission and cell 3 (the second cell) as the cell providing the connection for uplink information transmission as an example, the process of establishing a decoupled uplink and downlink wireless connection based on the 4-step RA procedure may include the following steps 51 to 55:

[0225] Step 51: After the terminal determines cell 3, it sends the third random access signal.

[0226] For example, the third random access signal is used to establish a third connection in cell 3 for uplink information transmission.

[0227] Step 52: The terminal receives a random access response message in cell 3.

[0228] Step 53: The terminal sends message 3 in cell 3.

[0229] Message 3 includes information about community 4.

[0230] Step 54: The terminal receives a contention resolution message and / or terminal configuration information in cell 4.

[0231] For example, the terminal configuration information mentioned above includes relevant configuration information of cell 3 and / or relevant configuration information of cell 4, which are used to configure uplink and downlink decoupled wireless connections.

[0232] It should be noted that the terminal can also receive contention resolution messages and / or terminal configuration information in cell 3.

[0233] For example, the above method may further include the following step 55:

[0234] Step 55: The terminal performs terminal configuration, using the uplink-downlink decoupled wireless connection to transmit uplink signaling or uplink data in cell 3 and receive downlink signaling or downlink data in cell 4.

[0235] For example, as shown in Figure 5B, the process of establishing an uplink-downlink decoupled wireless connection based on the 4-step RA procedure may include the following steps 61 to 63:

[0236] Step 61: After the terminal determines cell 3, it sends random access information MsgA.

[0237] For example, the MsgA may include a PRACH preamble signal and connection establishment request information carried by the MsgA PUSCH. Further, the terminal sends the MsgA in cell 3.

[0238] Step 62: The terminal receives the MsgB message from cell 4.

[0239] For example, the MsgB is used to carry contention resolution instructions, terminal configuration information, TAC and other information. The terminal configuration information includes relevant configuration information of cell 3 and / or relevant configuration information of cell 4, which is used to configure uplink and downlink decoupled radio connections.

[0240] For example, the method may further include the following step 63:

[0241] Step 63: The terminal performs terminal configuration, utilizing the uplink-downlink decoupled wireless connection to transmit uplink signaling or uplink data in the third cell and receive downlink signaling or downlink data in the fourth cell.

[0242] In this embodiment, the terminal initiates a random access procedure by using a first cell that provides an uplink wireless connection and reports information about a second cell that provides a downlink wireless connection during the random access process. Then, based on the terminal configuration information sent by the network-side device, it establishes an uplink-downlink decoupled wireless connection. This allows for the rapid establishment of an uplink-downlink decoupled wireless connection between the first and second cells during the random access process, simplifying the network access steps and reducing access latency.

[0243] In some embodiments of this application, the wireless connection establishment method provided in this application may include the following step 219:

[0244] Step 219: The terminal receives the first message.

[0245] The first message mentioned above carries at least one of the following:

[0246] ①Information about neighboring communities;

[0247] ② Neighboring cell measurement configuration;

[0248] ③ Cell selection configuration: The above cell selection configuration is used by the terminal to determine the first cell or the second cell from at least one neighboring cell.

[0249] In some embodiments of this application, the aforementioned neighboring cell information includes, but is not limited to, at least one of the following:

[0250] ① Neighboring community signage information;

[0251] ② Neighboring cell carrier information;

[0252] ③ Synchronization signal information of neighboring cells.

[0253] It is understood that at least one of the aforementioned neighboring cells can work together with the stationed cell to provide uplink and downlink decoupled wireless connectivity for the terminal, and the terminal can perform neighboring cell measurements based on the neighboring cell information.

[0254] In this embodiment, based on neighboring cell information, the terminal can select a cell that suits the current service requirements and network conditions to establish a wireless connection, thereby improving the reliability of establishing a wireless connection.

[0255] In this embodiment of the application, by providing detailed measurement configuration, it can be ensured that the terminal can accurately perform neighbor cell measurements, thereby obtaining reliable measurement data to achieve more efficient wireless connection establishment.

[0256] In some embodiments of this application, the information of the neighboring cells mentioned above includes at least one of the following:

[0257] ① The identification or serial number of the neighboring community;

[0258] ② Measurement results of neighboring communities.

[0259] In some embodiments of this application, step 202 described above can be implemented by step 202b:

[0260] Step 202b: The terminal reports the first information in the random access procedure based on the third information.

[0261] The aforementioned third information includes at least one of the following:

[0262] ① First measurement result quantification table, which is used to quantify the measurement results of the second cell;

[0263] ② First quantization step size, which is used for quantizing the measurement results of the second cell;

[0264] ③ Reporting priority.

[0265] In some embodiments of this application, the first measurement result quantization table can be a defined dedicated measurement result quantization table, which may include a path loss quantization table, a reference signal received power quantization table, or a reference signal received quality quantization table.

[0266] In some embodiments of this application, a first measurement result quantization table or a first quantization step size (N dB) is used to quantize the measurement results of neighboring cells, reducing the field length of path loss, reference signal received power, or reference signal received quality, so that it can be carried by uplink messages (e.g.) during random access procedures.

[0267] In some embodiments of this application, when there is information from multiple neighboring cells that needs to be reported, the terminal can prioritize reporting information from neighboring cells with higher reporting priority.

[0268] For example, when information from multiple neighboring cells needs to be reported, the information from neighboring cells is filled into the Medium Access Control (MAC) Protocol Data Unit (PDU) of the uplink message (e.g., Msg3, MsgB, Msg5) in descending order of priority, until the capacity is exhausted or all information from neighboring cells is filled.

[0269] In some embodiments of this application, the wireless connection establishment method provided in this application may include the following steps 220 and 221:

[0270] Step 220: The terminal receives the first admission instruction from the first cell.

[0271] Step 221: The terminal establishes a decoupled uplink and downlink wireless connection according to the first admission instruction mentioned above.

[0272] The aforementioned first access instruction includes at least one of the following:

[0273] A first uplink access indication is used to indicate whether the terminal is allowed to establish a connection for uplink information transmission in the first cell.

[0274] A first downlink access indication is used to indicate whether a terminal is allowed to establish a connection for uplink information transmission in the first cell.

[0275] In some embodiments of this application, establishing a decoupled uplink and downlink wireless connection also includes configuring access control for uplink and downlink separately by the network-side device, including introducing separate uplink access indications and downlink access indications for a cell.

[0276] For example, when a terminal receives an uplink access permission indication from a cell that prohibits access, it does not select that cell to perform random access or report the cell identifier or related measurement information of that cell to assist the base station in configuring the connection between the terminal and that cell for uplink information transmission.

[0277] For example, when a terminal receives an uplink access indication from a cell that allows access or when the target configuration information used to carry the uplink access indication does not carry the uplink access indication, the terminal may select the cell to perform random access based on the cell search process, or report the cell identifier of the cell, or report the relevant measurement information of the cell to assist the base station in establishing a connection with the cell for uplink information transmission.

[0278] For example, when a terminal receives a downlink access indication from a cell that prohibits access, it does not select that cell to perform random access, or does not report the cell identifier of that cell, or does not report the relevant measurement information of that cell to assist the base station in establishing a connection with that cell for downlink information transmission;

[0279] For example, when a terminal receives a downlink access indication from a cell that allows access or when the target configuration information used to carry the downlink access indication does not carry the downlink access indication, the terminal may select the cell to perform random access based on the cell search process, or report the cell identifier of the cell, or report the relevant measurement information of the cell to assist the base station in establishing a connection with the cell for downlink information transmission.

[0280] In some examples, for cell A (such as the terminal's camp cell) where downlink resources are scarce but uplink resources are abundant, it can be configured to allow connections for uplink information transmission only to cell A. The terminal selects cell A as the cell to provide the connection for uplink information transmission and performs random access. During the random access process, the terminal reports information about another neighboring cell, and the auxiliary base station determines that the neighboring cell is the cell to provide the connection for downlink information transmission. This neighboring cell can be a cell with abundant downlink resources.

[0281] In some examples, for cell A (such as the terminal's camp cell) where uplink resources are scarce but downlink resources are abundant, it can be configured to allow only connections for downlink information transmission to be established with cell A. The terminal selects a neighboring cell as the cell to provide the connection for uplink information transmission and performs random access. During the random access process, the terminal reports the information of cell A, and the auxiliary base station determines that cell A is the cell to provide the connection for downlink information transmission.

[0282] In some embodiments of this application, steps 220 and 221 described above may be performed before step 201 described above.

[0283] In some embodiments of this application, step 221 may include at least one of steps 221a to 221d:

[0284] Step 221a: When the first admission indication indicates that a connection for uplink information transmission is allowed to be established in the first cell, the terminal establishes a connection for uplink information transmission in the first cell.

[0285] Step 221b: When the first admission indication indicates that a connection for downlink information transmission is allowed to be established in the first cell, the terminal establishes a connection for downlink information transmission in the first cell.

[0286] Step 221c: When the first admission indication indicates that the establishment of a connection for uplink information transmission in the first cell is prohibited, the terminal does not establish a connection for uplink information transmission in the first cell.

[0287] Step 221d: When the first admission indication indicates that the establishment of a connection for downlink information transmission in the first cell is prohibited, the terminal does not establish a connection for downlink information transmission in the first cell.

[0288] In some embodiments of this application, the wireless connection establishment method provided in this application may include steps 222 and 223:

[0289] Step 222: The terminal receives the second admission instruction from the second cell.

[0290] Step 223: The terminal determines whether to report the first information based on the second access instruction.

[0291] The aforementioned second access instruction includes at least one of the following:

[0292] The second uplink access indication is used to indicate whether the terminal is allowed to establish a connection for uplink information transmission in the second cell.

[0293] The second downlink access indication is used to indicate whether the terminal is allowed to establish a connection for downlink information transmission in the second cell.

[0294] In some embodiments of this application, step 223 may include at least one of steps 223a and 223b:

[0295] Step 223a: When the second admission indication indicates that a connection for uplink information transmission or a connection for downlink information transmission is allowed to be established in the second cell, the terminal reports the first information in the first cell.

[0296] The first piece of information mentioned above also includes access instructions for the second community.

[0297] Step 223b: When the second access instruction indicates that the establishment of a connection for uplink information transmission and a connection for downlink information transmission in the second cell is prohibited, the terminal does not report the first information in the first cell.

[0298] For example, taking the first cell as the terminal's camping cell and the second cell as a neighboring cell of the camping cell, the terminal receives a downlink admission indication in the camping cell. The downlink admission indication indicates that a connection for downlink information transmission can be established with the camping cell. The terminal can initiate a random access procedure in the camping cell. If the terminal receives an uplink admission indication from the neighboring cell, the uplink admission indication indicates that a connection for uplink information transmission can be established with the neighboring cell. Then, during the random access procedure, the terminal reports the information of the neighboring cell to assist the base station in establishing a decoupled uplink and downlink wireless connection between the camping cell and the neighboring cell.

[0299] In this embodiment of the application, by introducing uplink access indication and downlink access indication respectively, the uplink or downlink spare resources of the cell can be used efficiently. This avoids completely prohibiting the terminal from accessing the cell when downlink resources are scarce but uplink resources are still abundant, or vice versa, which would result in a waste of uplink or downlink resources.

[0300] In some embodiments of this application, when the connection used for downlink information transmission is retained and the connection used for uplink information transmission is switched, the terminal may reset only one of the Radio Link Control (RLC) receive buffer and the receive buffer corresponding to the Downlink Hybrid Automatic Repeat reQuest (HARQ) connection used for downlink information transmission. This avoids the resource consumption and downlink data transmission delay caused by unnecessary downlink RLC / HARQ transmit buffer resets resulting in higher-layer uplink data retransmissions.

[0301] Alternatively, if the connection used for uplink information transmission is retained and the connection used for downlink information transmission is switched, the terminal can reset only one of the RLC receive buffer corresponding to the downlink information transmission connection and the receive buffer corresponding to the downlink HARQ. This avoids the resource consumption and downlink data transmission delay caused by unnecessary uplink RLC / HARQ transmit buffer resets and subsequent uplink data retransmissions at higher layers.

[0302] Figure 6 is a flowchart illustrating the wireless connection establishment method provided in an embodiment of this application. As shown in Figure 6, the wireless connection establishment method may include the following step 301:

[0303] Step 301: During the random access process, the network-side device receives the first information.

[0304] The first information mentioned above includes information about the second cell, and the first information is used to assist the configuration terminal in establishing uplink-downlink decoupled wireless connections with the first cell and the second cell.

[0305] In some embodiments of this application, the first cell is selected from at least one neighboring cell of the terminal's camping cell, and the neighboring cell with the highest priority is selected.

[0306] The selection priority is determined by the neighbor cell selection principle based on propagation path loss.

[0307] In some embodiments of this application, the first information mentioned above includes at least one of the following:

[0308] The signage for the second residential area;

[0309] The local identifier of the second cell, which is used to indicate the second cell;

[0310] Measurement results for the second area;

[0311] The third offset is the offset of the measurement result of the second cell relative to the first threshold.

[0312] In some embodiments of this application, the first cell is the terminal's camping cell; or the first cell is a neighboring cell of the camping cell.

[0313] In some embodiments of this application, the second cell is the cell where the terminal is camped; or, the second cell is a neighboring cell of the camped cell. In some embodiments of this application, the wireless connection establishment method provided in this application may include the following step 302:

[0314] Step 302: The network-side device sends the neighbor cell measurement configuration to the terminal.

[0315] The aforementioned neighbor cell measurement configuration is used for terminal measurement of cells that can provide uplink and downlink decoupled wireless connections. These cells include cells that provide connections for uplink information transmission or cells that provide connections for downlink information transmission.

[0316] In some embodiments of this application, step 302 may be performed before step 301.

[0317] In some embodiments of this application, the wireless connection establishment method provided in this application may include the following step 303:

[0318] Step 303: The network-side device sends the second information to the terminal based on the first information;

[0319] The aforementioned second information is used to configure the uplink-downlink decoupled wireless connection; the aforementioned second information includes at least one of the following: relevant configuration information of the first cell, and relevant configuration information of the second cell.

[0320] In some embodiments of this application, step 303 may be performed after step 301.

[0321] In some embodiments of this application, the second information is carried by message 4 or by message B.

[0322] In some embodiments of this application, the wireless connection establishment method provided in this application may include at least one of the following steps 304 to 306:

[0323] Step 304: The network-side device receives the first random access signal sent by the terminal in the first cell.

[0324] The aforementioned first random access signal is used to establish a first connection for downlink information transmission in the first cell.

[0325] Step 305: The network-side device sends the first configuration information to the terminal.

[0326] The first configuration information is used to configure the uplink-downlink decoupled wireless connection; the first configuration information includes at least one of the following: configuration information of the first cell and configuration information of the second cell.

[0327] Step 306: The network-side device receives the second random access signal from the terminal.

[0328] The aforementioned second random access signal is used to establish a second connection for uplink information transmission in the second cell.

[0329] In some embodiments of this application, the wireless connection establishment method provided in this application may include at least one of the following steps 307 and 308:

[0330] Step 307: The network-side equipment receives the third random access signal sent by the terminal in the first cell.

[0331] The aforementioned third random access signal is used to establish a third connection for uplink information transmission in the first cell.

[0332] Step 308: The network-side device sends the second configuration information to the terminal.

[0333] The second configuration information is used to configure the uplink-downlink decoupled wireless connection; the second configuration information includes at least one of the following: relevant configuration information of the first cell and relevant configuration information of the second cell.

[0334] In some embodiments of this application, the wireless connection establishment method provided in this application may include the following step 309:

[0335] Step 309: The network-side device sends the first message to the terminal.

[0336] The first message mentioned above carries at least one of the following:

[0337] ①Information about neighboring communities;

[0338] ② Neighboring cell measurement configuration;

[0339] ③ Cell selection configuration, which is used by the terminal to determine the first cell or the second cell from at least one neighboring cell.

[0340] In some embodiments of this application, the aforementioned neighboring cell information includes at least one of the following:

[0341] ① Neighboring community signage information;

[0342] ② Neighboring cell carrier information;

[0343] ③ Synchronization signal information of neighboring cells.

[0344] In some embodiments of this application, the above-described neighbor cell measurement configuration is used to configure at least one of the following:

[0345] ① Perform neighbor cell measurements before the random access procedure;

[0346] ② Conditions that trigger neighboring cell measurements;

[0347] ③ Neighbor cell measurement reporting based on propagation path loss;

[0348] ④ Report neighboring cell information during the random access process.

[0349] In some embodiments of this application, the aforementioned neighboring cell information includes at least one of the following:

[0350] ① The identification or serial number of the neighboring community;

[0351] ② Measurement results of neighboring communities.

[0352] In some embodiments of this application, the cell selection configuration includes at least one of the following:

[0353] ① The signal quality threshold of the cell where the terminal is camped;

[0354] ②The transmission path loss threshold within the residential community;

[0355] ③ Signal quality threshold of neighboring cells in the residential area;

[0356] ④ Propagation path loss threshold of neighboring cells;

[0357] ⑤ Frequency priority between the residential community and neighboring communities;

[0358] ⑥ First offset, which is used to compare the propagation path loss of co-frequency neighboring cells and the stationed cell;

[0359] ⑦ Second offset, which is used to compare the downlink signal strength of co-frequency neighboring cells and the stationed cell;

[0360] ⑧ First random access indication, which is used to instruct the terminal to initiate a random access procedure in the stationary cell or a neighboring cell;

[0361] ⑨ Protocol predefined configuration, used to configure the terminal to initiate random access for transmitting uplink information first;

[0362] ⑩ Cities where the terminal is stationed: This configuration is used to configure the terminal to report information about the cells where it is stationed when it initiates random access to a neighboring cell.

[0363] In some embodiments of this application, the wireless connection establishment method provided in this application may include the following step 310:

[0364] Step 310: The network-side device sends the first admission instruction to the terminal.

[0365] The aforementioned first access instruction includes at least one of the following:

[0366] A first uplink access indication is used to indicate whether the terminal is allowed to establish a connection for uplink information transmission in the first cell.

[0367] A first downlink access indication is used to indicate whether a terminal is allowed to establish a connection for uplink information transmission in the first cell.

[0368] In some embodiments of this application, the wireless connection establishment method provided in this application may include the following step 311:

[0369] Step 311: The network-side device sends a second admission instruction to the terminal.

[0370] The aforementioned second access instruction includes at least one of the following:

[0371] The second uplink access indication is used to indicate whether the terminal is allowed to establish a connection for uplink information transmission in the second cell.

[0372] The second downlink access indication is used to indicate whether the terminal is allowed to establish a connection for uplink information transmission in the second cell.

[0373] It should be noted that the explanation of this embodiment can be found in the relevant description of the above terminal method embodiment, and the steps are repeated here.

[0374] The wireless connection establishment method provided in this application embodiment involves a network-side device receiving first information during a random access process. This first information includes information about a second cell, which is used to assist in configuring the terminal to establish a decoupled uplink / downlink wireless connection with both the first and second cells. By reporting the first information, including the second cell information, in advance during the random access procedure, the network-side device can make timely decisions and configure the UE's wireless connection, reducing the delay in wireless link establishment and thus improving the efficiency and flexibility of establishing a decoupled uplink / downlink wireless connection. This, in turn, enhances the timeliness and performance of data transmission.

[0375] Figure 7 is a flowchart illustrating the interaction method provided in an embodiment of this application. As shown in Figure 7, the method may include the following steps 401 to 403:

[0376] Step 401: The terminal initiates a random access procedure in the first cell.

[0377] Step 402: During the random access procedure, the terminal reports the first piece of information.

[0378] The first information mentioned above includes information about the second cell, and the first information is used to assist the configuration terminal in establishing uplink-downlink decoupled wireless connections with the first cell and the second cell.

[0379] Step 403: During the random access process, the network-side device receives the first information.

[0380] In some embodiments of this application, referring to FIG7 above, as shown in FIG8, step 403 may be followed by steps 404 and 405:

[0381] Step 404: The network-side device sends the second information to the terminal based on the first information.

[0382] Step 405: The terminal receives the second information from the network-side device.

[0383] The aforementioned second information is used to configure the uplink-downlink decoupled wireless connection; the second information includes at least one of the following: relevant configuration information of the first cell and relevant configuration information of the second cell.

[0384] In some embodiments of this application, referring to Figures 7 and 8 above, and as shown in Figure 9, before reporting the first information in step 402 above, the following steps 406 to 409 may also be included:

[0385] Step 406: The network-side device sends the neighbor cell measurement configuration to the terminal.

[0386] Step 407: The terminal obtains the neighboring cell measurement configuration from the terminal's registered cell.

[0387] Step 408: The terminal performs neighbor cell measurement based on the neighbor cell measurement configuration.

[0388] Step 409: The terminal determines the first information based on the measurement results of neighboring cells.

[0389] It should be noted that step 409 can be performed before step 401, after step 401, or simultaneously with step 401. This application embodiment does not limit this.

[0390] In some embodiments of this application, the following steps 410a or 410b may be included before step 401 above:

[0391] Step 410a: The terminal determines the cell where it is camped as the first cell.

[0392] Step 410b: The terminal identifies a neighboring cell of the terminal's current cell as the first cell.

[0393] In some embodiments of this application, the above method may further include at least one of steps 411 to 416:

[0394] Step 411: The terminal sends a first random access signal in the first cell. The first random access signal is used to establish a first connection for downlink information transmission in the first cell.

[0395] Step 412: The network-side device receives the first random access signal sent by the terminal in the first cell;

[0396] Step 413: The network-side device sends the first configuration information to the terminal.

[0397] The first configuration information is used to configure the uplink-downlink decoupled wireless connection; the first configuration information includes at least one of the following: relevant configuration information of the first cell, and relevant configuration information of the second cell;

[0398] Step 414: The terminal receives the first configuration information in the first cell.

[0399] Step 415: The terminal sends a second random access signal in the second cell based on the first configuration information.

[0400] The aforementioned second random access signal is used to establish a second connection for uplink information transmission in the second cell.

[0401] Step 416: The network-side device receives the second random access signal from the terminal.

[0402] In some embodiments of this application, the above method may further include at least one of steps 417 to 421:

[0403] Step 417: The terminal sends a third random access signal in the first cell. The third random access signal is used to establish a third connection in the first cell for uplink information transmission.

[0404] Step 418: The network-side device receives the third random access signal sent by the terminal in the first cell. The third random access signal is used to establish a third connection for uplink information transmission in the first cell.

[0405] Step 419: The network-side device sends second configuration information to the terminal. The second configuration information is used to configure the uplink-downlink decoupled wireless connection. The second configuration information includes at least one of the following: relevant configuration information of the first cell and relevant configuration information of the second cell.

[0406] Step 420: The terminal receives second configuration information in the first cell. The second configuration information is used to configure the uplink-downlink decoupled radio connection. The second configuration information includes at least one of the following: relevant configuration information of the first cell and relevant configuration information of the second cell.

[0407] Step 421: Based on the second configuration information, the terminal establishes a fourth connection for downlink information transmission in the second cell.

[0408] In some embodiments of this application, the above method may further include steps 422 and 423:

[0409] Step 422: The network-side device sends the first message to the terminal.

[0410] Step 423: The terminal receives the first message.

[0411] The first message carries at least one of the following:

[0412] Information about neighboring communities;

[0413] Neighboring cell measurement configuration;

[0414] Cell selection configuration is used by the terminal to determine the first cell or the second cell from at least one neighboring cell.

[0415] In some embodiments of this application, the above method may further include steps 422 to 424:

[0416] Step 422: The network-side device sends the first admission instruction to the terminal.

[0417] Step 423: The terminal receives the first admission instruction from the first cell.

[0418] Step 424: The terminal establishes a decoupled uplink and downlink wireless connection according to the first admission instruction.

[0419] The first access instruction includes at least one of the following:

[0420] The first uplink access indication is used to indicate whether the terminal is allowed to establish a connection for uplink information transmission in the first cell.

[0421] The first downlink access indication is used to indicate whether the terminal is allowed to establish a connection for uplink information transmission in the first cell.

[0422] In some embodiments of this application, the above method may further include steps 425 to 427:

[0423] Step 425: The network-side device sends a second admission instruction to the terminal.

[0424] Step 426: The terminal receives the second admission instruction from the second cell.

[0425] Step 427: The terminal determines whether to report the first information based on the second access instruction.

[0426] The aforementioned second access instruction includes at least one of the following:

[0427] The second uplink access indication is used to indicate whether the terminal is allowed to establish a connection for uplink information transmission in the second cell.

[0428] The second downlink access indication is used to indicate whether the terminal is allowed to establish a connection for uplink information transmission in the second cell.

[0429] It should be noted that for explanations of this interaction method embodiment, please refer to the relevant descriptions of the terminal or network-side device method embodiments described above, which will not be repeated here.

[0430] In this embodiment, the terminal can quickly establish uplink-decoupled wireless connections during random access, allowing the terminal to select the cell with the best uplink transmission and the cell with the best downlink transmission respectively to quickly establish wireless connections, thereby improving the efficiency of network wireless resource allocation and optimizing the terminal experience. In particular, by quickly establishing uplink-decoupled wireless connections during the wireless connection establishment process, it is beneficial to quickly serve the numerous small data services generated by a wide range of intelligent applications, avoiding the awkward scenario where the uplink-decoupled wireless connection technology cannot be effectively utilized due to the lengthy uplink-decoupled wireless connection establishment process, where the data of small data services has already been transmitted before the uplink-decoupled wireless connection is established.

[0431] It should be noted that the execution order of the steps in the above-described method embodiments of this application is merely an illustrative example and does not constitute a unique or exclusive limitation on the implementation of this application. In other words, even if the order of the steps is adjusted in actual applications, as long as these adjustments still follow and embody the core ideas and technical points of this application, they should all be considered to fall within the protection scope of this application.

[0432] The wireless connection establishment method provided in this application can be executed by a wireless connection establishment device. This application uses a wireless connection establishment device executing the wireless connection establishment method as an example to illustrate the wireless connection establishment device provided in this application.

[0433] This application provides a wireless connection establishment apparatus. As an example, the wireless connection establishment apparatus may be a communication device or a component within a communication device, such as a chip. The communication device may be a terminal, a network-side device, or a server, etc. Exemplarily, the terminal may include, but is not limited to, the type of terminal 11 listed above, and the network-side device may include, but is not limited to, the type of network-side device 12 listed above. This application does not impose specific limitations.

[0434] The wireless connection establishment device includes a receiving module, a transmitting module, and a processing module. These modules can be implemented in software or hardware. When implemented in hardware, the processing module can be implemented by a processor. For example, the processor can include general-purpose processors, special-purpose processors, such as a Central Processing Unit (CPU), microprocessor, Digital Signal Processor (DSP), Artificial Intelligence (AI) processor, Graphics Processing Unit (GPU), Application Specific Integrated Circuit (ASIC), Network Processor (NP), Field Programmable Gate Array (FPGA), or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc. The receiving and transmitting modules can be implemented by a communication interface, which can include one or more of the following: transceiver, pins, circuits, bus, radio frequency unit, etc.

[0435] Specifically, referring to Figure 10, when the wireless connection establishment device is a terminal or a component in a terminal, the wireless connection establishment device 600 includes a processing module 601 and a transmitting module 602. The processing module 601 is used to initiate a random access procedure in the first cell; the transmitting module 602 is used to report first information during the random access procedure; wherein, the first information includes information about the second cell, and the first information is used to assist in configuring the terminal to establish an uplink-downlink decoupled wireless connection with the first cell and the second cell.

[0436] In some embodiments of this application, the above-mentioned processing module is further configured to: perform neighbor cell measurement based on neighbor cell measurement configuration; and determine first information based on the neighbor cell measurement results; wherein, the neighbor cell measurement configuration is used by the terminal to measure cells that can provide uplink and downlink decoupling wireless connections, and the cells include cells that provide connections for uplink information transmission or cells that provide connections for downlink information transmission.

[0437] In some embodiments of this application, the receiving module described above is used to obtain neighboring cell measurement configurations from the terminal's camped cell.

[0438] In some embodiments of this application, the above-described processing module is further configured to determine the terminal's camping cell as the first cell; or, determine a neighboring cell of the camping cell as the first cell.

[0439] In some embodiments of this application, the second cell is the terminal's registered cell; or, the second cell is a neighboring cell of the registered cell.

[0440] In some embodiments of this application, the above-described processing module is further configured to establish a first connection with the first cell for downlink information transmission and a second connection with the second cell for uplink information transmission.

[0441] In some embodiments of this application, the above-described processing module is further configured to establish a third connection with the first cell for uplink information transmission and a fourth connection with the second cell for downlink information transmission.

[0442] In some embodiments of this application, the receiving module is further configured to receive second information from a network-side device; wherein the second information is used to configure uplink-downlink decoupled wireless connections; the second information includes at least one of the following: relevant configuration information of the first cell and relevant configuration information of the second cell.

[0443] In some embodiments of this application, the second information is carried by message 4 or by message B.

[0444] In some embodiments of this application, the above-mentioned sending module is specifically used to send first information in the first cell during the random access procedure; wherein the first information is carried by message 3, message A or message 5.

[0445] In some embodiments of this application, the transmitting module is further configured to transmit a first random access signal in a first cell, the first random access signal being used to establish a first connection for downlink information transmission in the first cell; the receiving module is further configured to receive first configuration information in the first cell, the first configuration information being used to configure a decoupled uplink and downlink wireless connection; the first configuration information includes at least one of the following: relevant configuration information of the first cell, relevant configuration information of the second cell; the transmitting module is further configured to transmit a second random access signal in the second cell based on the first configuration information, the second random access signal being used to establish a second connection for uplink information transmission in the second cell.

[0446] In some embodiments of this application, the sending module is further configured to send a third random access signal in the first cell, the third random access signal being used to establish a third connection for uplink information transmission in the first cell; the receiving module is further configured to receive second configuration information in the first cell, the second configuration information being used to configure a decoupled uplink and downlink wireless connection; the second configuration information includes at least one of the following: relevant configuration information of the first cell, relevant configuration information of the second cell; the processing module is further configured to establish a fourth connection for downlink information transmission in the second cell based on the second configuration information.

[0447] In some embodiments of this application, the receiving module described above is further configured to receive a first message;

[0448] The first message carries at least one of the following:

[0449] Information about neighboring communities;

[0450] Neighboring cell measurement configuration;

[0451] Cell selection configuration is used by the terminal to determine the first cell or the second cell from at least one neighboring cell.

[0452] In some embodiments of this application, the neighboring cell information includes at least one of the following:

[0453] Neighboring community signage information;

[0454] Neighboring cell carrier information;

[0455] Synchronization signal information with neighboring cells.

[0456] In some embodiments of this application, the neighboring cell measurement configuration is used to configure at least one of the following:

[0457] Perform neighbor cell measurements before the random access procedure;

[0458] Conditions that trigger neighboring cell measurements;

[0459] Neighbor cell measurement reporting based on propagation path loss;

[0460] During the random access process, information about neighboring cells is reported.

[0461] In some embodiments of this application, the information of neighboring cells includes at least one of the following:

[0462] The identification or serial number of the neighboring community;

[0463] Measurement results from neighboring communities.

[0464] In some embodiments of this application, the cell selection configuration includes at least one of the following:

[0465] The signal quality threshold of the cell where the terminal is located;

[0466] The transmission path loss threshold within the residential community;

[0467] Signal quality threshold of neighboring cells in the residential area;

[0468] The propagation path loss threshold of neighboring cells;

[0469] Frequency priority between the residential community and neighboring communities;

[0470] The first offset is used to compare the propagation path loss of co-frequency neighboring cells and the stationed cell.

[0471] The second offset is used to compare the downlink signal strength of neighboring cells in the same frequency range with that of the stationary cell;

[0472] The first random access instruction is used to instruct the terminal to initiate a random access procedure in the cell where it is camped or in a neighboring cell.

[0473] The protocol predefined configuration is used to configure the terminal to initiate random access for transmitting uplink information first.

[0474] The configuration for reporting information about the cell in which the terminal is staying is used to configure the terminal to report information about the cell in which it is staying when it initiates random access to a neighboring cell.

[0475] In some embodiments of this application, among at least one neighboring cell of the terminal's camping cell, the neighboring cell with the highest priority is selected; wherein, the selection priority is determined based on the neighboring cell selection principle based on propagation path loss.

[0476] In some embodiments of this application, the first information includes at least one of the following:

[0477] The signage for the second residential area;

[0478] The local identifier of the second cell is used to indicate the second cell;

[0479] Measurement results for the second area;

[0480] The third offset is the offset of the measurement result of the second cell relative to the first threshold.

[0481] In some embodiments of this application, the above-mentioned sending module is specifically used to report the first information in the random access procedure based on the third information;

[0482] The third information includes at least one of the following:

[0483] The first measurement result quantification table is used to quantify the measurement results of the second cell.

[0484] The first quantization step size is used to quantize the measurement results of the second cell;

[0485] Reporting priority.

[0486] In some embodiments of this application, the receiving module is further configured to receive a first admission instruction from the first cell; the processing module is further configured to establish an uplink-downlink decoupled wireless connection according to the first admission instruction.

[0487] The first access instruction includes at least one of the following:

[0488] The first uplink access indication is used to indicate whether the terminal is allowed to establish a connection for uplink information transmission in the first cell.

[0489] The first downlink access indication is used to indicate whether the terminal is allowed to establish a connection for uplink information transmission in the first cell.

[0490] In some embodiments of this application, the above-described processing module is specifically used for:

[0491] When the first access instruction indicates that a connection for uplink information transmission is permitted to be established in the first cell, the terminal establishes a connection for uplink information transmission in the first cell.

[0492] When the first access instruction indicates that a connection for downlink information transmission is permitted to be established in the first cell, the terminal establishes a connection for downlink information transmission in the first cell.

[0493] When the first access instruction indicates that the establishment of a connection for uplink information transmission in the first cell is prohibited, the terminal does not establish a connection for uplink information transmission in the first cell.

[0494] When the first access instruction indicates that establishing a connection for downlink information transmission in the first cell is prohibited, the terminal does not establish a connection for downlink information transmission in the first cell.

[0495] In some embodiments of this application, the receiving module is further configured to receive a second admission instruction from the second cell; the processing module is further configured to determine whether to report the first information based on the second admission instruction.

[0496] The second access instruction includes at least one of the following:

[0497] The second uplink access indication is used to indicate whether the terminal is allowed to establish a connection for uplink information transmission in the second cell.

[0498] The second downlink access indication is used to indicate whether the terminal is allowed to establish a connection for downlink information transmission in the second cell.

[0499] In some embodiments of this application, the above-described processing module is specifically used for:

[0500] When the second access instruction indicates that a connection for uplink information transmission or a connection for downlink information transmission is permitted to be established in the second cell, the terminal reports the first information in the first cell; the first information also includes the access instruction information of the second cell.

[0501] When the second access instruction prohibits the establishment of connections for uplink information transmission and connections for downlink information transmission in the second cell, the terminal does not report the first information in the first cell.

[0502] The wireless connection establishment apparatus provided in this application initiates a random access procedure in a first cell and reports first information during the random access procedure. This first information includes information about a second cell, which is used to assist in configuring the terminal to establish a decoupled uplink and downlink wireless connection with the first and second cells. By reporting the first information, including the second cell information, in advance during the random access procedure, the network-side equipment can make timely decisions and configure the UE's wireless connection, reducing the delay in wireless link establishment and thus improving the efficiency and flexibility of establishing a decoupled uplink and downlink wireless connection, thereby improving the timeliness and performance of data transmission.

[0503] Referring to Figure 11, when the wireless connection establishment device is a network-side device or a component of a network-side device, the wireless connection establishment device 700 includes a receiving module 701, which is used to receive first information during random access; wherein, the first information includes information about a second cell, and the first information is used to assist in configuring the terminal to establish an uplink-downlink decoupled wireless connection with the first cell and the second cell.

[0504] In some embodiments of this application, the first cell is the cell where the terminal is camped; or the first cell is a neighboring cell of the camped cell.

[0505] In some embodiments of this application, the second cell is the terminal's camping cell; or, the second cell is a neighboring cell of the camping cell.

[0506] In some embodiments of this application, the above-described sending module is used to send neighboring cell measurement configuration to the terminal; wherein, the neighboring cell measurement configuration is used by the terminal to measure cells that can provide uplink and downlink decoupling wireless connections, the cells including cells that provide connections for uplink information transmission or cells that provide connections for downlink information transmission.

[0507] In some embodiments of this application, the above-mentioned sending module is further configured to send second information to the terminal based on the first information after receiving the first information during the random access process; wherein the second information is used to configure the uplink-downlink decoupled wireless connection; the second information includes at least one of the following: relevant configuration information of the first cell, and relevant configuration information of the second cell.

[0508] In some embodiments of this application, the second information is carried by message 4 or by message B.

[0509] In some embodiments of this application, the receiving module is further configured to receive a first random access signal sent by the terminal in a first cell, the first random access signal being used to establish a first connection for downlink information transmission in the first cell; the sending module is further configured to send first configuration information to the terminal, the first configuration information being used to configure a decoupled uplink and downlink wireless connection; the first configuration information includes at least one of the following: relevant configuration information of the first cell, relevant configuration information of the second cell; the receiving module is further configured to receive a second random access signal from the terminal, the second random access signal being used to establish a second connection for uplink information transmission in the second cell.

[0510] In some embodiments of this application, the receiving module is further configured to receive a third random access signal sent by the terminal in the first cell, the third random access signal being used to establish a third connection for uplink information transmission in the first cell; the sending module is further configured to send second configuration information to the terminal, the second configuration information being used to configure a decoupled uplink and downlink wireless connection; the second configuration information includes at least one of the following: relevant configuration information of the first cell, and relevant configuration information of the second cell.

[0511] In some embodiments of this application, the sending module described above is further configured to send a first message to the terminal;

[0512] The first message carries at least one of the following:

[0513] Information about neighboring communities;

[0514] Neighboring cell measurement configuration;

[0515] Cell selection configuration is used by the terminal to determine the first cell or the second cell from at least one neighboring cell.

[0516] In some embodiments of this application, the neighboring cell information includes at least one of the following:

[0517] Neighboring community signage information;

[0518] Neighboring cell carrier information;

[0519] Synchronization signal information with neighboring cells.

[0520] In some embodiments of this application, the neighboring cell measurement configuration is used to configure at least one of the following:

[0521] Perform neighbor cell measurements before the random access procedure;

[0522] Conditions that trigger neighboring cell measurements;

[0523] Neighbor cell measurement reporting based on propagation path loss;

[0524] Report neighboring cell information during the random access process.

[0525] In some embodiments of this application, the neighboring cell information includes at least one of the following:

[0526] The identification or serial number of the neighboring community;

[0527] Measurement results from neighboring communities.

[0528] In some embodiments of this application, the cell selection configuration includes at least one of the following:

[0529] The signal quality threshold of the cell where the terminal is located;

[0530] The transmission path loss threshold within the residential community;

[0531] Signal quality threshold of neighboring cells in the residential area;

[0532] The propagation path loss threshold of neighboring cells;

[0533] Frequency priority between the residential community and neighboring communities;

[0534] The first offset is used to compare the propagation path loss of co-frequency neighboring cells and the stationed cell.

[0535] The second offset is used to compare the downlink signal strength of neighboring cells in the same frequency range with that of the stationary cell;

[0536] The first random access instruction is used to instruct the terminal to initiate a random access procedure in the cell where it is camped or in a neighboring cell.

[0537] The protocol predefined configuration is used to configure the terminal to initiate random access for transmitting uplink information first.

[0538] The configuration for reporting information about the cell in which the terminal is staying is used to configure the terminal to report information about the cell in which it is staying when it initiates random access to a neighboring cell.

[0539] In some embodiments of this application, the first cell is selected from at least one neighboring cell of the terminal's camping cell, and the neighboring cell with the highest priority is selected.

[0540] The selection priority is determined by the neighbor cell selection principle based on propagation path loss.

[0541] In some embodiments of this application, the first information includes at least one of the following:

[0542] The signage for the second residential area;

[0543] The local identifier of the second cell is used to indicate the second cell;

[0544] Measurement results for the second area;

[0545] The third offset is the offset of the measurement result of the second cell relative to the first threshold.

[0546] In some embodiments of this application, the above-described sending module is further configured to send a first admission instruction to the terminal;

[0547] The first access instruction includes at least one of the following:

[0548] The first uplink access indication is used to indicate whether the terminal is allowed to establish a connection for uplink information transmission in the first cell.

[0549] The first downlink access indication is used to indicate whether the terminal is allowed to establish a connection for uplink information transmission in the first cell.

[0550] In some embodiments of this application, the above-described sending module is further configured to send a second admission instruction to the terminal;

[0551] The second access instruction includes at least one of the following:

[0552] The second uplink access indication is used to indicate whether the terminal is allowed to establish a connection for uplink information transmission in the second cell.

[0553] The second downlink access indication is used to indicate whether the terminal is allowed to establish a connection for uplink information transmission in the second cell.

[0554] The wireless connection establishment apparatus provided in this application embodiment receives first information during the random access process; wherein the first information includes information about a second cell, and the first information is used to assist in configuring the terminal to establish an uplink-decoupled wireless connection with the first cell and the second cell. By reporting the first information, including the second cell information, in advance during the random access procedure, timely decisions can be made and the UE's wireless connection can be configured, reducing the delay in wireless link establishment, thereby improving the efficiency and flexibility of establishing an uplink-decoupled wireless connection, and further improving the timeliness and performance of data transmission.

[0555] The wireless connection establishment apparatus provided in this application embodiment can implement all the processes implemented in the wireless connection establishment method embodiment and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0556] As shown in Figure 12, this application embodiment also provides a communication device 1000, including a processor 1001 and a memory 1002. The memory 1002 stores a program or instructions that can run on the processor 1001. For example, when the communication device 1000 is a terminal, the program or instructions executed by the processor 1001 implement the various steps of the above-described wireless connection establishment method embodiment and achieve the same technical effect. When the communication device 1000 is a network-side device, the program or instructions executed by the processor 1001 implement the various steps of the above-described wireless connection establishment method embodiment and achieve the same technical effect. To avoid repetition, this will not be described again here.

[0557] This application also provides a terminal, including a processor and a communication interface, wherein the communication interface and the processor are coupled, and the processor is used to run programs or instructions to implement the steps in the wireless connection establishment method embodiment. This terminal embodiment corresponds to the above-described terminal-side method embodiment, and all implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and achieve the same technical effect. The terminal can be the wireless connection establishment device shown in FIG9. Specifically, FIG13 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of this application.

[0558] The terminal 100 includes, but is not limited to, at least some of the following components: radio frequency unit 101, network module 102, audio output unit 103, input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, and processor 110.

[0559] Those skilled in the art will understand that terminal 100 may also include a power supply (such as a battery) for powering various components. The power supply can be logically connected to processor 110 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The terminal structure shown in Figure 13 does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0560] It should be understood that, in this embodiment, the input unit 104 may include a graphics processor 1041 and a microphone 1042. The graphics processor 1041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 106 may include a display panel 1061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 107 includes at least one of a touch panel 1071 and other input devices 1072. The touch panel 1071 is also called a touch screen. The touch panel 1071 may include a touch detection device and a touch controller. Other input devices 1072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0561] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 101 can transmit it to the processor 110 for processing; in addition, the radio frequency unit 101 can send uplink data to the network-side device. Typically, the radio frequency unit 101 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0562] The memory 109 can be used to store software programs or instructions, as well as various data. The memory 109 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 109 may include volatile memory or non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 109 in the embodiments of this application includes, but is not limited to, these and any other suitable types of memory.

[0563] Processor 110 may include one or more processing units; optionally, processor 110 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 110.

[0564] The processor 110 is used to initiate a random access procedure in the first cell; the radio frequency unit 101 is used to report first information during the random access procedure; wherein the first information includes information about the second cell, and the first information is used to assist in configuring the terminal to establish uplink-downlink decoupled wireless connections with the first cell and the second cell.

[0565] In some embodiments of this application, the processor 110 is further configured to: perform neighbor cell measurement based on neighbor cell measurement configuration; and determine first information based on the neighbor cell measurement results; wherein the neighbor cell measurement configuration is used by the terminal to measure cells that can provide uplink-downlink decoupling wireless connectivity, the cells including cells that provide connectivity for uplink information transmission or cells that provide connectivity for downlink information transmission.

[0566] In some embodiments of this application, the radio frequency unit 101 described above is used to obtain neighboring cell measurement configurations from the terminal's camped cell.

[0567] In some embodiments of this application, the processor 110 is further configured to determine the terminal's camping cell as the first cell; or, to determine a neighboring cell of the camping cell as the first cell.

[0568] In some embodiments of this application, the second cell is the terminal's registered cell; or, the second cell is a neighboring cell of the registered cell.

[0569] In some embodiments of this application, the processor 110 is further configured to establish a first connection with the first cell for downlink information transmission and a second connection with the second cell for uplink information transmission.

[0570] In some embodiments of this application, the processor 110 is further configured to establish a third connection with the first cell for uplink information transmission and a fourth connection with the second cell for downlink information transmission.

[0571] In some embodiments of this application, the radio frequency unit 101 is further configured to receive second information from a network-side device; wherein the second information is configured to configure uplink-downlink decoupled wireless connections; the second information includes at least one of the following: relevant configuration information of a first cell and relevant configuration information of a second cell.

[0572] In some embodiments of this application, the second information is carried by message 4 or by message B.

[0573] In some embodiments of this application, the radio frequency unit 101 is specifically used to send first information in the first cell during a random access procedure; wherein the first information is carried by message 3, message A or message 5.

[0574] In some embodiments of this application, the radio frequency unit 101 is further configured to transmit a first random access signal in a first cell, the first random access signal being used to establish a first connection for downlink information transmission in the first cell; the radio frequency unit 101 is further configured to receive first configuration information in the first cell, the first configuration information being used to configure a decoupled uplink and downlink wireless connection; the first configuration information includes at least one of the following: relevant configuration information of the first cell, relevant configuration information of the second cell; the radio frequency unit 101 is further configured to transmit a second random access signal in the second cell based on the first configuration information, the second random access signal being used to establish a second connection for uplink information transmission in the second cell.

[0575] In some embodiments of this application, the radio frequency unit 101 is further configured to transmit a third random access signal in the first cell, the third random access signal being used to establish a third connection for uplink information transmission in the first cell; the radio frequency unit 101 is further configured to receive second configuration information in the first cell, the second configuration information being used to configure a decoupled uplink and downlink wireless connection; the second configuration information includes at least one of the following: relevant configuration information of the first cell, relevant configuration information of the second cell; the processor 110 is further configured to establish a fourth connection for downlink information transmission in the second cell based on the second configuration information.

[0576] In some embodiments of this application, the radio frequency unit 101 described above is also used to receive a first message;

[0577] The first message carries at least one of the following:

[0578] Information about neighboring communities;

[0579] Neighboring cell measurement configuration;

[0580] Cell selection configuration is used by the terminal to determine the first cell or the second cell from at least one neighboring cell.

[0581] In some embodiments of this application, the neighboring cell information includes at least one of the following:

[0582] Neighboring community signage information;

[0583] Neighboring cell carrier information;

[0584] Synchronization signal information with neighboring cells.

[0585] In some embodiments of this application, the neighboring cell measurement configuration is used to configure at least one of the following:

[0586] Perform neighbor cell measurements before the random access procedure;

[0587] Conditions that trigger neighboring cell measurements;

[0588] Neighbor cell measurement reporting based on propagation path loss;

[0589] During the random access process, information about neighboring cells is reported.

[0590] In some embodiments of this application, the information of neighboring cells includes at least one of the following:

[0591] The identification or serial number of the neighboring community;

[0592] Measurement results from neighboring communities.

[0593] In some embodiments of this application, the cell selection configuration includes at least one of the following:

[0594] The signal quality threshold of the cell where the terminal is located;

[0595] The transmission path loss threshold within the residential community;

[0596] Signal quality threshold of neighboring cells in the residential area;

[0597] The propagation path loss threshold of neighboring cells;

[0598] Frequency priority between the residential community and neighboring communities;

[0599] The first offset is used to compare the propagation path loss of co-frequency neighboring cells and the stationed cell.

[0600] The second offset is used to compare the downlink signal strength of neighboring cells in the same frequency range with that of the stationary cell;

[0601] The first random access instruction is used to instruct the terminal to initiate a random access procedure in the cell where it is camped or in a neighboring cell.

[0602] The protocol predefined configuration is used to configure the terminal to initiate random access for transmitting uplink information first.

[0603] The configuration for reporting information about the cell in which the terminal is staying is used to configure the terminal to report information about the cell in which it is staying when it initiates random access to a neighboring cell.

[0604] In some embodiments of this application, among at least one neighboring cell of the terminal's camping cell, the neighboring cell with the highest priority is selected; wherein, the selection priority is determined based on the neighboring cell selection principle based on propagation path loss.

[0605] In some embodiments of this application, the first information includes at least one of the following:

[0606] The signage for the second residential area;

[0607] The local identifier of the second cell is used to indicate the second cell;

[0608] Measurement results for the second area;

[0609] The third offset is the offset of the measurement result of the second cell relative to the first threshold.

[0610] In some embodiments of this application, the radio frequency unit 101 is specifically used to report first information in a random access procedure based on third information;

[0611] The third information includes at least one of the following:

[0612] The first measurement result quantification table is used to quantify the measurement results of the second cell.

[0613] The first quantization step size is used to quantize the measurement results of the second cell;

[0614] Reporting priority.

[0615] In some embodiments of this application, the radio frequency unit 101 is further configured to receive a first admission instruction from the first cell; the processor 110 is further configured to establish an uplink-downlink decoupled wireless connection according to the first admission instruction.

[0616] The first access instruction includes at least one of the following:

[0617] The first uplink access indication is used to indicate whether the terminal is allowed to establish a connection for uplink information transmission in the first cell.

[0618] The first downlink access indication is used to indicate whether the terminal is allowed to establish a connection for uplink information transmission in the first cell.

[0619] In some embodiments of this application, the processor 110 described above is specifically used for:

[0620] When the first access instruction indicates that a connection for uplink information transmission is permitted to be established in the first cell, the terminal establishes a connection for uplink information transmission in the first cell.

[0621] When the first access instruction indicates that a connection for downlink information transmission is permitted to be established in the first cell, the terminal establishes a connection for downlink information transmission in the first cell.

[0622] When the first access instruction indicates that the establishment of a connection for uplink information transmission in the first cell is prohibited, the terminal does not establish a connection for uplink information transmission in the first cell.

[0623] When the first access instruction indicates that establishing a connection for downlink information transmission in the first cell is prohibited, the terminal does not establish a connection for downlink information transmission in the first cell.

[0624] In some embodiments of this application, the radio frequency unit 101 is further configured to receive a second admission instruction from the second cell; the processor 110 is further configured to determine whether to report the first information based on the second admission instruction.

[0625] The second access instruction includes at least one of the following:

[0626] The second uplink access indication is used to indicate whether the terminal is allowed to establish a connection for uplink information transmission in the second cell.

[0627] The second downlink access indication is used to indicate whether the terminal is allowed to establish a connection for downlink information transmission in the second cell.

[0628] In some embodiments of this application, the processor 110 described above is specifically used for:

[0629] When the second access instruction indicates that a connection for uplink information transmission or a connection for downlink information transmission is permitted to be established in the second cell, the terminal reports the first information in the first cell; the first information also includes the access instruction information of the second cell.

[0630] When the second access instruction prohibits the establishment of connections for uplink information transmission and connections for downlink information transmission in the second cell, the terminal does not report the first information in the first cell.

[0631] The wireless connection establishment apparatus provided in this application initiates a random access procedure in a first cell and reports first information during the random access procedure. This first information includes information about a second cell, which is used to assist in configuring the terminal to establish a decoupled uplink and downlink wireless connection with the first and second cells. By reporting the first information, including the second cell information, in advance during the random access procedure, the network-side equipment can make timely decisions and configure the UE's wireless connection, reducing the delay in wireless link establishment and thus improving the efficiency and flexibility of establishing a decoupled uplink and downlink wireless connection, thereby improving the timeliness and performance of data transmission.

[0632] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the method embodiment and achieve the same or corresponding technical effect. To avoid repetition, it will not be described again here.

[0633] This application also provides a network-side device, including a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the above-described wireless connection establishment method embodiment. This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above method embodiments can be applied to this network-side device embodiment and achieve the same technical effects.

[0634] Specifically, this application embodiment also provides a network-side device, which can be the wireless connection establishment device shown in FIG11. As shown in FIG14, the network-side device 2000 includes: an antenna 2001, a radio frequency device 2002, a baseband device 2003, a processor 2004, and a memory 2005. The antenna 2001 is connected to the radio frequency device 2002. In the uplink direction, the radio frequency device 2002 receives information through the antenna 2001 and sends the received information to the baseband device 2003 for processing. In the downlink direction, the baseband device 2003 processes the information to be transmitted and sends it to the radio frequency device 2002, which processes the received information and transmits it through the antenna 2001.

[0635] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 2003, which includes a baseband processor.

[0636] The baseband device 2003 may include at least one baseband board, on which multiple chips are disposed, as shown in FIG200. One of the chips is, for example, a baseband processor, which is connected to the memory 2005 via a bus interface to call the program in the memory 2005 and execute the network device operation shown in the above method embodiment.

[0637] The network-side device may also include a network interface 2006, such as a Common Public Radio Interface (CPRI).

[0638] Specifically, the network-side device 2000 in this application embodiment further includes: instructions or programs stored in memory 2005 and executable on processor 2004. Processor 2004 calls the instructions or programs in memory 2005 to execute the methods executed by each module shown in FIG11 and achieve the same technical effect. To avoid repetition, it will not be described in detail here.

[0639] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described wireless connection establishment method embodiments and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0640] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0641] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described wireless connection establishment method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0642] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0643] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described wireless connection establishment method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0644] This application also provides a communication system, including: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the terminal-side wireless connection establishment method described above, and the network-side device can be used to perform the steps of the network-side device wireless connection establishment method described above.

[0645] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0646] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of computer software products plus necessary general-purpose hardware platforms, and of course, they can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions to cause the terminal or network-side device to execute the methods described in the various embodiments of this application.

[0647] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other implementations under the guidance of this application without departing from the spirit and scope of the claims. All of these implementations are within the protection scope of this application.

Claims

1. A method for establishing a wireless connection, the method comprising: The terminal initiates a random access procedure in the first cell; During the random access process, the terminal reports the first piece of information; The first information includes information about the second cell, and the first information is used to assist in configuring the terminal to establish an uplink-downlink decoupled wireless connection with the first cell and the second cell.

2. The method according to claim 1, wherein, Before the terminal reports the first piece of information, the method further includes: The terminal performs neighbor cell measurements based on the neighbor cell measurement configuration; The terminal determines the first information based on the measurement results of neighboring cells; The neighboring cell measurement configuration is used by the terminal to measure cells that can provide uplink and downlink decoupled wireless connectivity. The cells include cells that provide connectivity for uplink information transmission or cells that provide connectivity for downlink information transmission.

3. The method according to claim 2, wherein, The method further includes: The terminal obtains the neighboring cell measurement configuration from the terminal's registered cell.

4. The method according to any one of claims 1 to 3, wherein, Before the terminal initiates a random access procedure in the first cell, the method further includes: The terminal determines the cell where it is camped as the first cell; Alternatively, the terminal may identify a neighboring cell of the stationed cell as the first cell.

5. The method according to any one of claims 1 to 4, wherein, The second cell is the cell where the terminal is hosted; or, the second cell is a neighboring cell of the cell where the terminal is hosted.

6. The method according to any one of claims 1 to 5, wherein, The method further includes: The terminal establishes a first connection with the first cell for downlink information transmission; The terminal establishes a second connection with the second cell for uplink information transmission.

7. The method according to any one of claims 1 to 5, wherein, The method further includes: The terminal establishes a third connection with the first cell for uplink information transmission; The terminal establishes a fourth connection with the second cell for downlink information transmission.

8. The method according to any one of claims 1 to 7, wherein, The method further includes: The terminal receives second information from the network-side device; The second information is used to configure uplink-downlink decoupled wireless connections; the second information includes at least one of the following: relevant configuration information of the first cell, and relevant configuration information of the second cell.

9. The method according to claim 8, wherein, The second information is carried by message 4 or by message B.

10. The method according to any one of claims 1 to 9, wherein, During the random access procedure, the terminal reports the first piece of information, including: During the random access procedure, the terminal sends the first information in the first cell; The first information is carried by message 3, message A, or message 5.

11. The method according to any one of claims 1 to 10, wherein, The method further includes at least one of the following: The terminal sends a first random access signal in the first cell, and the first random access signal is used to establish a first connection for downlink information transmission in the first cell; The terminal receives first configuration information in the first cell, the first configuration information being used to configure uplink-downlink decoupled wireless connections; the first configuration information includes at least one of the following: relevant configuration information of the first cell, and relevant configuration information of the second cell; Based on the first configuration information, the terminal sends a second random access signal in the second cell. The second random access signal is used to establish a second connection for uplink information transmission in the second cell.

12. The method according to any one of claims 1 to 10, wherein, The method further includes at least one of the following: The terminal sends a third random access signal in the first cell, the third random access signal being used to establish a third connection in the first cell for uplink information transmission; The terminal receives second configuration information in the first cell, the second configuration information being used to configure uplink-downlink decoupled wireless connections; the second configuration information includes at least one of the following: relevant configuration information of the first cell, and relevant configuration information of the second cell; Based on the second configuration information, the terminal establishes a fourth connection in the second cell for downlink information transmission.

13. The method according to any one of claims 1 to 12, wherein, The method further includes: The terminal receives the first message; The first message carries at least one of the following: Information about neighboring communities; Neighboring cell measurement configuration; Cell selection configuration, wherein the cell selection configuration is used by the terminal to determine the first cell or the second cell from the at least one neighboring cell.

14. The method according to claim 13, wherein, The neighboring cell information includes at least one of the following: Neighboring community signage information; Neighboring cell carrier information; Synchronization signal information with neighboring cells.

15. The method according to claim 13, wherein, The neighbor cell measurement configuration is used to configure at least one of the following: Perform neighbor cell measurements before the random access procedure; Conditions that trigger neighboring cell measurements; Neighbor cell measurement reporting based on propagation path loss; During the random access process, information about neighboring cells is reported.

16. The method according to claim 15, wherein, The information about the neighboring cells includes at least one of the following: The identification or serial number of the neighboring community; Measurement results from neighboring communities.

17. The method according to claim 13, wherein, The cell selection configuration includes at least one of the following: The signal quality threshold of the cell where the terminal is based; The propagation path loss threshold of the residential cell; The signal quality threshold of the neighboring cells of the stationed cell; The propagation path loss threshold of the neighboring cell; The frequency priority of the stationed cell and the neighboring cells; A first offset is used to compare the propagation path loss of co-frequency neighboring cells with that of the stationary cell. The second offset is used to compare the downlink signal strength of neighboring cells in the same frequency with the stationed cell; A first random access instruction, wherein the first random access instruction is used to instruct the terminal to initiate the random access procedure in the stationed cell or a neighboring cell; The protocol predefined configuration is used to configure the terminal to first initiate random access for transmitting uplink information; The configuration for reporting information about the stationed cell is used to configure the terminal to report information about the stationed cell when it initiates random access in a neighboring cell.

18. The method according to any one of claims 1 to 17, wherein, Among at least one neighboring cell of the first cell where the terminal is camped, the neighboring cell with the highest priority is selected; The selection priority is determined by the neighbor cell selection principle based on propagation path loss.

19. The method according to any one of claims 1 to 18, wherein, The first information includes at least one of the following: The community signage for the second community; The local identifier of the second cell, which is used to indicate the second cell; Measurement results from the second cell; The third offset is the offset of the measurement result of the second cell relative to the first threshold.

20. The method according to any one of claims 1 to 19, wherein, During the random access procedure, the terminal reports the first piece of information, including: The terminal reports the first information during the random access process based on the third information; The third information includes at least one of the following: A first measurement result quantification table is used to quantify the measurement results of the second cell; The first quantization step size is used to quantize the measurement results of the second cell; Reporting priority.

21. The method according to claim 1, wherein, The method further includes: The terminal receives a first access instruction from the first cell; The terminal establishes a decoupled uplink and downlink wireless connection according to the first admission instruction; The first access instruction includes at least one of the following: A first uplink access indication is used to indicate whether the terminal is allowed to establish a connection for uplink information transmission in the first cell. A first downlink access indication is used to indicate whether the terminal is allowed to establish a connection for uplink information transmission in the first cell.

22. The method according to claim 21, wherein, The terminal establishes an uplink-downlink decoupled wireless connection according to the first admission instruction, including at least one of the following: When the first admission indication indicates that a connection for uplink information transmission is allowed to be established in the first cell, the terminal establishes a connection for uplink information transmission in the first cell. When the first access indication indicates that a connection for downlink information transmission is allowed to be established in the first cell, the terminal establishes a connection for downlink information transmission in the first cell. When the first access instruction indicates that the establishment of a connection for uplink information transmission in the first cell is prohibited, the terminal does not establish a connection for uplink information transmission in the first cell. When the first access instruction indicates that a connection for downlink information transmission is prohibited in the first cell, the terminal does not establish a connection for downlink information transmission in the first cell.

23. The method according to claim 1, wherein, The method further includes: The terminal receives a second access instruction from the second cell; The terminal determines whether to report the first information based on the second access instruction; The second access instruction includes at least one of the following: The second uplink access indication is used to indicate whether the terminal is allowed to establish a connection for uplink information transmission in the second cell. The second downlink access indication is used to indicate whether the terminal is allowed to establish a connection for downlink information transmission in the second cell.

24. The method according to claim 23, wherein, The terminal determines whether to report the first information based on the second access instruction, including at least one of the following: When the second admission indication indicates that a connection for uplink information transmission or a connection for downlink information transmission is allowed to be established in the second cell, the terminal reports the first information in the first cell; the first information also includes the admission indication information of the second cell; When the second access instruction indicates that the establishment of connections for uplink information transmission and connections for downlink information transmission in the second cell is prohibited, the terminal does not report the first information in the first cell.

25. A method for establishing a wireless connection, wherein, The method includes: During the random access process, the network-side device receives the first information; The first information includes information about the second cell, and the first information is used to assist the configuration terminal in establishing uplink-downlink decoupled wireless connections with the first cell and the second cell.

26. The method of claim 25, wherein, The first cell is the cell where the terminal is hosted; or the first cell is a neighboring cell of the cell where the terminal is hosted.

27. The method according to claim 25 or 26, wherein, The second cell is the cell where the terminal is hosted; or, the second cell is a neighboring cell of the cell where the terminal is hosted.

28. The method according to any one of claims 25 to 27, wherein, Before receiving the first information during the random access process, the method further includes: The network-side device sends neighbor cell measurement configuration to the terminal; The neighboring cell measurement configuration is used by the terminal to measure cells that can provide uplink and downlink decoupled wireless connectivity. The cells include cells that provide connectivity for uplink information transmission or cells that provide connectivity for downlink information transmission.

29. The method according to any one of claims 25 to 28, wherein, After receiving the first information during the random access process, the method further includes: Based on the first information, the network-side device sends the second information to the terminal; The second information is used to configure uplink-downlink decoupled wireless connections; the second information includes at least one of the following: relevant configuration information of the first cell, and relevant configuration information of the second cell.

30. The method according to claim 29, wherein, The second information is carried by message 4 or by message B.

31. The method according to any one of claims 25 to 30, wherein, The method further includes at least one of the following: The network-side device receives a first random access signal sent by the terminal in the first cell, and the first random access signal is used to establish a first connection for downlink information transmission in the first cell; The network-side device sends first configuration information to the terminal. The first configuration information is used to configure the uplink-downlink decoupled wireless connection. The first configuration information includes at least one of the following: relevant configuration information of the first cell and relevant configuration information of the second cell. The network-side device receives a second random access signal from the terminal, which is used to establish a second connection for uplink information transmission in the second cell.

32. The method according to any one of claims 25 to 31, wherein, The method further includes at least one of the following: The network-side device receives a third random access signal sent by the terminal in the first cell. The third random access signal is used to establish a third connection for uplink information transmission in the first cell. The network-side device sends second configuration information to the terminal. The second configuration information is used to configure the uplink-downlink decoupled wireless connection. The second configuration information includes at least one of the following: relevant configuration information of the first cell and relevant configuration information of the second cell.

33. The method according to any one of claims 25 to 32, wherein, The method further includes: The network-side device sends a first message to the terminal; The first message carries at least one of the following: Information about neighboring communities; Neighboring cell measurement configuration; Cell selection configuration, wherein the cell selection configuration is used by the terminal to determine the first cell or the second cell from the at least one neighboring cell.

34. The method according to claim 33, wherein, The neighboring cell information includes at least one of the following: Neighboring community signage information; Neighboring cell carrier information; Synchronization signal information with neighboring cells.

35. The method according to claim 33, wherein, The neighbor cell measurement configuration is used to configure at least one of the following: Perform neighbor cell measurements before the random access procedure; Conditions that trigger neighboring cell measurements; Neighbor cell measurement reporting based on propagation path loss; Report neighboring cell information during the random access process.

36. The method according to claim 35, wherein, The neighboring cell information includes at least one of the following: The identification or serial number of the neighboring community; Measurement results from neighboring communities.

37. The method according to claim 33, wherein, The cell selection configuration includes at least one of the following: The signal quality threshold of the cell where the terminal is based; The propagation path loss threshold of the residential cell; The signal quality threshold of the neighboring cells of the stationed cell; The propagation path loss threshold of the neighboring cell; The frequency priority of the stationed cell and the neighboring cells; A first offset is used to compare the propagation path loss of co-frequency neighboring cells with that of the stationary cell. The second offset is used to compare the downlink signal strength of neighboring cells in the same frequency with the stationed cell; A first random access instruction, wherein the first random access instruction is used to instruct the terminal to initiate the random access procedure in the stationed cell or a neighboring cell; The protocol predefined configuration is used to configure the terminal to first initiate random access for transmitting uplink information; The configuration for reporting information about the stationed cell is used to configure the terminal to report information about the stationed cell when it initiates random access in a neighboring cell.

38. The method according to any one of claims 25 to 37, wherein, Among at least one neighboring cell of the first cell where the terminal is camped, the neighboring cell with the highest priority is selected; The selection priority is determined by the neighbor cell selection principle based on propagation path loss.

39. The method according to any one of claims 25 to 38, wherein, The first information includes at least one of the following: The community signage for the second community; The local identifier of the second cell, which is used to indicate the second cell; Measurement results from the second cell; The third offset is the offset of the measurement result of the second cell relative to the first threshold.

40. The method of claim 25, wherein, The method further includes: The network-side device sends a first access instruction to the terminal; The first access instruction includes at least one of the following: A first uplink access indication is used to indicate whether the terminal is allowed to establish a connection for uplink information transmission in the first cell. A first downlink access indication is used to indicate whether the terminal is allowed to establish a connection for uplink information transmission in the first cell.

41. The method according to claim 25, wherein, The method further includes: The network-side device sends a second access instruction to the terminal; The second access instruction includes at least one of the following: The second uplink access indication is used to indicate whether the terminal is allowed to establish a connection for uplink information transmission in the second cell. The second downlink access indication is used to indicate whether the terminal is allowed to establish a connection for uplink information transmission in the second cell.

42. A wireless connection establishment apparatus, the apparatus comprising: The processing module and the sending module, wherein: The processing module is used to initiate a random access procedure in the first cell; The sending module is used to report the first information during the random access process; The first information includes information about the second cell, and the first information is used to assist in configuring the terminal to establish an uplink-downlink decoupled wireless connection with the first cell and the second cell.

43. A wireless connection establishment apparatus, the apparatus comprising: Receiver module; The receiving module is used to receive first information during the random access process; The first information includes information about the second cell, and the first information is used to assist the configuration terminal in establishing uplink-downlink decoupled wireless connections with the first cell and the second cell.

44. A terminal comprising a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the wireless connection establishment method as claimed in any one of claims 1 to 24.

45. A network-side device, comprising a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the wireless connection establishment method as claimed in any one of claims 25 to 41.

46. ​​A readable storage medium storing a program or instructions that, when executed by a processor, implement the wireless connection establishment method as claimed in any one of claims 1 to 24, or implement the steps of the wireless connection establishment method as claimed in any one of claims 25 to 41.

47. A computer program product stored in a storage medium, the computer program product being executed by at least one processor to implement the wireless connection establishment method as claimed in any one of claims 1 to 24, or to implement the steps of the wireless connection establishment method as claimed in any one of claims 25 to 41.

48. A chip comprising a processor and a communication interface coupled to the processor, the processor being configured to run a program or instructions to implement the wireless connection establishment method as described in any one of claims 1 to 24, or to implement the steps of the wireless connection establishment method as described in any one of claims 25 to 41.

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