Access method, device, equipment, readable storage medium and computer program product

Abstract

The invention belongs to the technical field of communication, and particularly relates to an access method, device and equipment, a readable storage medium and a computer program product, and the method comprises the steps that network side equipment sends a first access resource to a terminal; the network side equipment receives a first random access signal from the terminal; the network side equipment determines whether the terminal executes a first random access process or a second random access process according to the first random access signal; wherein the first random access process is a random access process based on the first access resource, and the second random access process is an access process based on a second access resource.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to an access method, apparatus, device, readable storage medium, and computer program product. Background Art

[0002] When performing access based on a high-frequency carrier, in order to provide a link gain sufficient to support the completion of the entire access process, the network-side equipment (such as the base station) needs to provide a sufficiently narrow discovery reference signal beam, and the terminal (UE) completes the initial beam training based on the discovery reference signal beam; at the same time, the network-side equipment needs to configure the random access channel resources corresponding to these narrow beams for the UE to perform the random access process. The omnidirectional scanning and transmission of narrow discovery reference signal beams and the reservation of corresponding access resources will generate huge wireless resource overhead, including time-frequency resource overhead, the transmission and reception power overhead of the network-side equipment, pilot pollution, etc. In addition, when performing cell measurement based on omnidirectional scanning narrow beams, due to the large number of narrow beams, the UE takes a long time to perform the measurement, which increases the access delay. Summary of the Invention

[0003] The embodiments of the present application provide an access method, apparatus, device, readable storage medium, and computer program product, which can solve the problems of high resource overhead and high access latency in the access process based on high-frequency carriers.

[0004] In a first aspect, an access method is provided, including:

[0005] The network side device sends the first access resource to the terminal;

[0006] The network side device receives a first random access signal from the terminal;

[0007] The network side device determines, according to the first random access signal, that the terminal performs a first random access procedure or a second random access procedure;

[0008] The first random access procedure is a random access procedure based on the first access resource, and the second random access procedure is an access procedure based on the second access resource.

[0009] In a second aspect, an access method is provided, including:

[0010] The terminal obtains a first access resource;

[0011] The terminal sends a first random access signal to the network side device;

[0012] determining, by the terminal, to perform a first random access procedure or a second random access procedure according to a response signal to the first random access signal;

[0013] The first random access procedure is a random access procedure based on the first access resource, and the second random access procedure is an access procedure based on the second access resource.

[0014] According to a third aspect, an access device is provided, including:

[0015] A first sending module, configured for a network-side device to send a first access resource to a terminal;

[0016] A receiving module, configured for the network-side device to receive a first random access signal from the terminal;

[0017] A first determining module, configured for the network side device to determine, according to the first random access signal, whether the terminal performs a first random access procedure or a second random access procedure;

[0018] The first random access procedure is a random access procedure based on the first access resource, and the second random access procedure is an access procedure based on the second access resource.

[0019] In a fourth aspect, an access device is provided, including:

[0020] An acquisition module, configured for a terminal to acquire a first access resource;

[0021] A second sending module, configured for the terminal to send a first random access signal to the network side device;

[0022] a second determining module, configured for the terminal to determine, according to a response signal to the first random access signal, whether to perform a first random access procedure or a second random access procedure;

[0023] The first random access procedure is a random access procedure based on the first access resource, and the second random access procedure is an access procedure based on the second access resource.

[0024] In a fifth aspect, a network side device is provided, which terminal includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the first aspect are implemented.

[0025] In a sixth aspect, a network-side device is provided, including a processor and a communication interface;

[0026] A communication interface, used for the network-side device to send the first access resource to the terminal;

[0027] a communication interface, configured for the network-side device to receive a first random access signal from the terminal;

[0028] a processor, configured for the network-side device to determine, according to the first random access signal, that the terminal performs a first random access procedure or a second random access procedure;

[0029] The first random access procedure is a random access procedure based on the first access resource, and the second random access procedure is an access procedure based on the second access resource.

[0030] In the seventh aspect, a terminal is provided, wherein the network side device includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the first aspect are implemented.

[0031] In an eighth aspect, a terminal is provided, comprising a processor and a communication interface;

[0032] A communication interface, used for a terminal to obtain a first access resource;

[0033] a communication interface, configured for the terminal to send a first random access signal to the network-side device;

[0034] a processor, configured for the terminal to determine, according to a response signal to the first random access signal, whether to perform a first random access procedure or a second random access procedure;

[0035] The first random access procedure is a random access procedure based on the first access resource, and the second random access procedure is an access procedure based on the second access resource.

[0036] In the ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0037] In the tenth aspect, a wireless communication system is provided, comprising: a terminal and a network side device, wherein the terminal can be used to execute the steps of the method described in the first aspect, and the network side device can be used to execute the steps of the method described in the second aspect.

[0038] In the eleventh aspect, a chip is provided, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the method as described in the first aspect, or to implement the method as described in the second aspect.

[0039] In the twelfth 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 method as described in the first aspect, or to implement the method as described in the second aspect.

[0040] In an embodiment of the present application, a network-side device provides a first access resource to a terminal and receives a first random access signal from the terminal. Based on the first random access signal, the network device then determines whether to execute a first random access procedure based on the first access resource or a second random access procedure based on the second access resource. In this way, the network flexibly selects an appropriate access resource based on the random access signal fed back by the terminal and executes the corresponding access procedure. This eliminates the need for the network to perform full resource configuration for all beams, saving resource overhead, and eliminates the need for the terminal to perform full-range scanning for all beams, reducing access latency. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1a is a block diagram of a wireless communication system to which embodiments of the present application may be applied;

[0042] Figure 1b This is a schematic diagram of the 4-step random access process;

[0043] Figure 1c This is a schematic diagram of a 2-step random access process;

[0044] Figure 2 This is one of the flow diagrams of the access method provided in the embodiment of the present application;

[0045] Figure 3a This is one of the schematic diagrams of access resource distribution scenarios provided in the embodiments of the present application;

[0046] Figure 3b This is the second schematic diagram of the access resource distribution scenario provided in the embodiment of the present application;

[0047] Figure 4 This is the second flow chart of the access method provided in the embodiment of the present application;

[0048] Figure 5 This is one of the structural diagrams of the access device provided in the embodiment of the present application;

[0049] Figure 6 This is the second structural diagram of the access device provided in the embodiment of the present application;

[0050] Figure 7 is a structural diagram of a communication device provided in an embodiment of the present application;

[0051] Figure 8 This is one of the structural diagrams of the network side device provided in the embodiment of the present application;

[0052] Figure 9 This is the second structural diagram of the network side device provided in the embodiment of the present application;

[0053] Figure 10It is a schematic diagram of the structure of the terminal provided in an embodiment of the present application. DETAILED DESCRIPTION

[0054] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0055] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three options, namely, Option 1: including A but not including B; Option 2: including B but not including A; Option 3: including both A and B. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0056] The term "indication" in this application can be either a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, the operation to be performed, or the requested result, etc. in the instruction sent; an indirect indication can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the operation to be performed or the requested result, etc. based on the judgment result.

[0057] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, 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 the embodiments of the present application are often used interchangeably, and the described technology can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th Generation (6G) communication systems.

[0058] Figure 1aThe block diagram of a wireless communication system applicable to the embodiments of the present application is shown. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device (Wearable Device), an aircraft (flight vehicle), a vehicle user equipment (VUE), a ship-borne device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture, etc.), a game console, a personal computer (PC), a teller machine, or a self-service machine, etc., and other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be called a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (Wireless Local Area Network, WLAN) access point (Access Point, AS) or a wireless fidelity (Wireless Fidelity, WiFi) node, etc.Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the 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 (home evolved Node B), Transmission Reception Point (TRP) or other appropriate terms in the relevant field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0059] The core network device may include but is not limited to at least one of the following: core network node, core network function, mobility management entity (MME), access mobility management function (AMF), session management function (SMF), user plane function (UPF), policy control function (PCF), policy and charging rules function unit (PCRF), edge application service discovery function (EASDF), unified data management (UDM), unified data repository (UDR), home user server (HSS), centralized network configuration (CNC), network storage function (NRF), network exposure function (NEF), local NEF (L-NEF), binding support function (Binding Support Function, BSF), network access function (ADF ... Function, BSF), application function (Application Function, AF), etc. It should be noted that in the embodiment of the present application, only the core network device in the NR system is introduced as an example, and the specific type of the core network device is not limited.

[0060] To better understand the technical solution of this application, the following contents are first introduced:

[0061] NR random access configuration

[0062] To support beam-based random access, NR defines a random access channel resource configuration mechanism based on the correspondence between uplink random access channel resources and cell discovery reference signal (e.g., synchronization block / synchronization signal (SSB)) beams. Its uplink random access channel resources are evenly distributed between different SSB beams or SSB beam sets. Random access channel resources include the physical random access channel (PRACH) transmission time-frequency position (PRACH occasion, PO) and PRACH preamble. An SSB beam can be allocated with multiple POs, or an SSB beam set can share one PO.

[0063] like Figure 1b As shown in the figure, the traditional RACH process includes four steps. The UE sends a PRACH preamble to the base station. The UE receives a random access response (Random Access Response, RAR) from the base station, determines the uplink transmission time according to the timing advance adjustment carried in the preamble, and sends Msg3 according to the scheduling configuration carried in the preamble. Msg3 carries identity information and service request information. Finally, the UE receives contention resolution information from the base station, indicating that the random access process is completed.

[0064] In addition, if Figure 1c As shown in the figure, NR also supports a two-step random access process. In the first step, the UE sends the PRACH preamble and Msg3 PUSCH to the base station. In the second step, it receives a response message from the base station, including timing adjustment information (TimeAdvance) and an indication of successful access (i.e., the UE's identity). If the received UE identity matches its own identity, it indicates that the network has been successfully accessed.

[0065] Regardless of whether it is a 4-step RACH process or a 2-step RACH process, in order to facilitate the base station to determine the preliminary matching of its own downlink transmission beam (such as RAR & Msg4 in 4-step RACH; MsgB in 2-Step-RACH) and the uplink beam sent by the UE (such as Msg1 & Msg3 in 4-step RACH; MsgA in 2-Step-RACH) during the random access process, NR defines the correspondence between SSB beam and PRACH transmission position / PRACH preamble: multiple SSB beams can correspond to the same PRACH transmission position, or one SSB can correspond to one or more PRACH transmission positions. The PRACH transmission position is determined according to the time-frequency resources sent by the PRACH; in addition, one SSB can be configured with multiple corresponding PRACH preambles. Once the base station detects the PRACH preamble from a PRACH transmission location, it can determine which SSB beam or beams are within the coverage of the UE. The base station can then determine the corresponding downlink beam and use it to send a response message (e.g., RAR & Msg4 in 4-step RACH; MsgB in 2-Step RACH) to the UE that sent the PRACH preamble. This mechanism ensures that both the UE and the base station enjoy uplink and downlink transmit and receive beam gains during random access, thereby expanding the coverage of random access.

[0066] Currently, regardless of the 2-Step RACH process or the 4-Step RACH process, the random access channel resources of an NR cell are evenly distributed among the SSB beams.

[0067] Additionally, the base station can now configure the UE to use random access preamble grouping to indicate the size of the Msg3. When the Msg3 size is less than a preset threshold, the random access preamble from group A is used; otherwise, group B is used. The base station determines the size of the Msg3 based on whether the received random access preamble belongs to group A or group B, thereby determining the amount of radio resources to allocate to the UE for Msg3 transmission via the RAR.

[0068] Random access characteristics of high-frequency cells

[0069] The propagation loss of high-frequency carriers is greater than that of low-frequency carriers, and the increase in propagation loss is roughly proportional to the square of the carrier frequency or higher. The advantage of high-frequency carriers is that their wavelength is small, resulting in a smaller antenna panel size. This allows for the integration of more antenna elements on a single panel to increase the gain of transmit and receive beamforming, thereby compensating for propagation loss. The sum of the transmit and receive antenna gains can compensate for propagation loss. While increasing the transmit and receive beam gains compensates for propagation loss, it also brings the following problems:

[0070] (1) Providing beam gain makes the beam narrower, and the number of broadcast beams required to cover the same target area increases exponentially, resulting in huge pilot beam overhead and corresponding access resource overhead;

[0071] (2) The beam training time required for the UE and base station to determine the uplink and downlink matching beams is too long, and the beam training overhead is too large compared to the wireless resources required for most data transmission.

[0072] The access method provided in the embodiment of the present application is described in detail below through some embodiments and their application scenarios in conjunction with the accompanying drawings.

[0073] See also Figure 2 The embodiment of the present application provides an access method. The execution subject of the method is a network-side device, which can be an access network device, such as a base station. The method includes:

[0074] Step 201: The network side device sends a first access resource to the terminal;

[0075] Step 202: The network-side device receives a first random access signal from the terminal;

[0076] Step 203: The network-side device determines, based on the first random access signal, whether the terminal performs the first random access procedure or the second random access procedure;

[0077] The first random access process is a random access process based on a first access resource, and the second random access process is an access process based on a second access resource.

[0078] In an embodiment of the present application, a network-side device provides a first access resource to a terminal and receives a first random access signal from the terminal. Based on the first random access signal, the network device then determines whether to execute a first random access procedure based on the first access resource or a second random access procedure based on the second access resource. In this way, the network flexibly selects an appropriate access resource based on the random access signal fed back by the terminal and executes the corresponding access procedure. This eliminates the need for the network to perform full resource configuration for all beams, saving resource overhead, and eliminates the need for the terminal to perform full-range scanning for all beams, reducing access latency.

[0079] In one possible implementation, the first access resource and the second access resource satisfy at least one of the following:

[0080] (1) The signal beam gain based on the second access resource is greater than the signal beam gain based on the first access resource;

[0081] (2) The second access resource is determined by the network-side device based on the access requirements of the terminal. For example, when the quality of the random access signal sent by the network-side device based on the first access resource is lower than a preset threshold, or the quality or strength of the reference discovery signal based on the first access resource indicated by the terminal through the random access signal sent based on the first access resource is lower than a preset threshold, or the terminal indicates a preference for using the second access resource to perform random access, it is determined that the first access resource cannot meet the access requirements of the terminal device, and then it is determined to provide the second access resource to the terminal, and the terminal is instructed to perform random access based on the second access resource.

[0082] Explanation for the first access resource and the second access resource:

[0083] See also Figure 3a The access resources in the embodiment of the present application include multiple sets of access resource configurations, including a set of basic access resources or at least one set of optional access resources, which are applied to UE to perform random access under different wireless channel quality conditions. The basic access resources include a set of basic discovery reference signal beams (e.g. Figure 3a A basic discovery reference signal (DRS) set with no padding in the ) and a corresponding set of basic random access channel resources (e.g. Figure 3a The optional access resources include a set of optional discovery reference signal beams (e.g. Figure 3a The nth DRS set filled with slashes in the middle) and the corresponding optional random access channel resources (e.g. Figure 3a The RACH resources associated with the nth DRS set are filled with slashes in the middle. The basic access resources can be provided all the time (i.e., the base station always broadcasts and sends the basic discovery reference signal and the reserved basic random access channel resources, and always processes the access process based on the basic random access channel resources). The optional access resources are determined by the base station based on the information provided by the accessing UE, and the base station configures the iterative access resources based on the information received from the UE.

[0084] The above-mentioned basic discovery reference signal can be understood as a discovery reference signal that can satisfy the UE to perform a normal random access process. For example, the base station sends a basic discovery reference signal to the UE, which can ensure that the UE performs a normal random access process. After receiving the random access signal from the UE, the base station directly sends a normal RAR and schedules the UE to send msg3 to schedule the UE to perform a normal random access process (e.g., 4-step RA).

[0085] The access resources in the embodiments of the present application can be understood as layered access resources;

[0086] The basic access resources can be regarded as the first layer, and the access resources under it are the second layer. The access resources of the second layer include several optional access resources. A reference discovery signal of the first layer corresponds spatially to an access resource set of the second layer. The lower layer of the second layer optional access resources is the third layer optional access resources, including several optional access resource sets. An access resource of a different second layer corresponds spatially to a third layer optional access resource set, and so on. In principle, the transmit / receive beam gain of the UE performing random access based on the n+1th (n>=1)th layer optional access resources is greater than the transmit / receive beam gain of the UE performing random access based on the nth layer (optional) access resources. Figure 3b An example of the spatial correspondence between hierarchical access resources is shown.

[0087] When the UE reports access to resources via layer n (corresponding to Figure 3b The part filled with slashes in the middle) notifies the base station that it needs to access resources based on the n+1 layer (corresponding to Figure 3b When performing access based on the access resources of the nth layer (the part filled with horizontal lines), the UE notifies the base station that the discovery reference signal beam Y of the access resources of the nth layer is selected. When the base station notifies the UE through the RAR that the access is performed based on the access resources of the n+1th layer, the UE should perform the access process based on the discovery reference signal beam Y of the access resources of the nth layer and the corresponding access resource set of the n+1th layer.

[0088] It can be understood that the first access resource can correspond to the above-mentioned basic access resource, the second access resource can correspond to the above-mentioned optional access resource, or the first access resource and the second access resource both belong to the above-mentioned optional access resources, wherein the first access resource can correspond to an optional access resource with a smaller beam gain, and the second access resource can correspond to an optional access resource with a larger beam gain. Accordingly, the above steps 201 to 203 can be repeatedly executed, that is, the network side device can determine the appropriate access resource after multiple iterations according to the beam gain from small to large.

[0089] It should be noted that the discovery reference signal beam set configuration and the corresponding random access channel resources in the embodiment of the present application are predefined by a system message configuration or protocol, and the system message is received by the UE from any cell in the network, including but not limited to the same-frequency cell, the different-frequency cell, or other frequencies of the target cell. That is, all basic access resources and optional access resources are pre-configured for the network side and the terminal side, and the network side and the terminal side select appropriate access resources from all pre-configured resources through the method provided in this application to perform the access process.

[0090] It should be noted that, in describing the technical solution of the present application, for the sake of clarity, the description is uniformly based on the situation that the first access resource can correspond to the above-mentioned basic access resource and the second access resource can correspond to the above-mentioned optional access resource. It can be understood that for the situation where the first access resource can correspond to the optional access resource with a smaller beam gain and the second access resource can correspond to the optional access resource with a larger beam gain, the solution is also applicable and can be understood with reference to the former situation.

[0091] In a possible implementation, the network-side device sends the first access resource to the terminal, including at least one of the following:

[0092] (1) The network-side device sends a first discovery reference signal to the terminal;

[0093] (2) The network-side device sends the configuration of the first random access channel resource to the terminal;

[0094] There is a first corresponding relationship between the first discovery reference signal and the first random access channel resource, and the first random access channel resource is used by the terminal to send the first random access signal to the network side device.

[0095] The network-side device provides the first access resource to the terminal by sending a first discovery reference signal, or sending a configuration of a first random access channel resource, or both. The terminal side can determine the corresponding first random access channel resource based on the received first discovery reference signal and the first correspondence.

[0096] In an embodiment of the present application, a set of access resource configurations includes a correspondence between random access channel resources and discovery reference signals (e.g., a correspondence between the random access channel resources and the discovery reference signal beam strength / quality range). For example, a mapping relationship exists between the time-frequency resources or preamble sequence for sending the RApreamble and the discovery reference signal beam strength / quality. The UE determines the corresponding time-frequency resources or preamble sequence of the RApreamble based on the discovery reference signal beam quality / strength. For example, if preamble sequence set n corresponds to a discovery reference signal beam strength range of 1 (lower bound, upper bound) dBm, and if the discovery reference signal beam received by the UE is within this range, a preamble sequence is selected from preamble sequence set n to initiate a random access procedure.

[0097] In a possible implementation, the network-side device determines, according to the first random access signal, that the terminal performs the first random access procedure or the second random access procedure, including at least one of the following:

[0098] (1) When the network side device determines to use the first access resource to perform the random access procedure based on the first random access signal, the network side device sends a first random access response signal to the terminal, where the first random access response signal is used to configure the terminal to perform the first random access procedure;

[0099] (2) When the network-side device determines to use the second access resource to perform the random access procedure based on the first random access signal, the network-side device sends a second random access response signal to the terminal, where the second random access response signal is used to configure the terminal to perform the second random access procedure.

[0100] An embodiment of the present application provides an iterative random access process centered on a network-side device. Specifically, as described above, the network-side device determines whether to use a first access resource or a second access resource to perform a random access process based on a random access signal fed back by a terminal, and configures a corresponding random access process for the terminal through different random access response signals.

[0101] Taking the case where the first access resource may correspond to the above-mentioned basic access resource and the second access resource may correspond to the above-mentioned optional access resource as an example, the base station detects the random access signal and determines whether to use the optional access resource to support UE access:

[0102] a) (for example, the base station measures the strength / quality of the random access signal. The base station determines that the radio channel quality based on the basic discovery reference signal can ensure that the UE performs a normal random access procedure. The base station directly sends a normal RAR and schedules the UE to send MSG3 to schedule the UE to perform a normal random access procedure (for example, a 4-step RA).

[0103] b) (for example, the base station measures the strength / quality of the random access signal and determines that the quality of the wireless channel cannot ensure that the UE performs a normal random process), the base station determines that the UE needs to perform a random access process based on the first optional access resource (that is, select an optional access resource with a beam gain greater than the basic access resource among all optional access resources), and sends a response message to instruct the UE to perform a random access process based on the first optional random access channel resource.

[0104] The link gain obtained by the UE performing a random access procedure based on the first optional access resource is greater than the link gain obtained by performing a random access procedure based on the basic access resource, for example:

[0105] (1) The transmission beam gain of the discovery reference signal of the first optional access resource sent by the base station is greater than the beam gain of the basic discovery reference signal;

[0106] (2) The receiving beam gain of the UE receiving the discovery reference signal of the first optional access resource is greater than the receiving beam gain of the UE receiving the basic discovery reference signal;

[0107] (3) The transmit beam gain of the UE when sending the RA preamble using the random access channel resources based on the first optional access resource is greater than the transmit beam gain of the RA preamble when sending the RA preamble using the basic random access channel resources;

[0108] (4) The receiving beam gain of the base station when receiving the RA preamble based on the first optional access resource is greater than the receiving beam gain of the base station when receiving the RA preamble based on the basic random access channel resource;

[0109] In a possible implementation, the network-side device determines, according to the first random access signal, to use the first access resource or the second access resource to perform a random access process, including:

[0110] The network-side device determines, according to the first information in the first random access signal, to use the first access resource or the second access resource to perform the random access process;

[0111] The first information is used to indicate information of a first discovery reference signal.

[0112] In an embodiment of the present application, the network side device determines whether to use the first access resource or the second access resource to perform the random access process based on the first information in the first random access signal that is used to indicate information of the first discovery reference signal.

[0113] Specifically, after receiving the discovery reference signal sent by the base station, the UE will perform measurement and other processing to determine the information of the first discovery reference signal. The UE can carry the first information used to indicate the information of the first discovery reference signal in the first random access signal and provide it to the base station to assist the base station in determining whether to use the first access resource or the second access resource to perform the random access process.

[0114] In a possible implementation manner, the information of the first discovery reference signal includes at least one of the following:

[0115] (1) identification information of the first discovery reference signal;

[0116] (2) beam coverage level information of the first discovery reference signal;

[0117] (3) strength information of the first discovery reference signal;

[0118] (4) quality information of the first discovery reference signal;

[0119] (5) Quality information of the uplink and downlink wireless channels between the network-side device and the terminal;

[0120] (6) Code sequence information of the first discovery reference signal;

[0121] (7) Time-frequency resource information used to transmit the first discovery reference signal.

[0122] In a possible implementation, determining to use the first access resource to perform a random access procedure includes:

[0123] When the first condition is met, determining to use the first access resource to perform the random access procedure:

[0124] The first condition includes at least one of the following:

[0125] (1) The strength of the first discovery reference signal is higher than the first strength threshold;

[0126] (2) the quality of the first discovery reference signal is higher than the first quality threshold;

[0127] (3) The quality of the uplink and downlink wireless channels between the network-side device and the terminal is higher than the second quality threshold;

[0128] (4) The strength of the first random access signal is higher than the second strength threshold;

[0129] (5) The quality of the first random access signal is higher than a third quality threshold;

[0130] (6) The first random access signal explicitly or implicitly requests completion of the random access process based on the first access resource.

[0131] In an embodiment of the present application, when the above-mentioned first condition is met, the network side device determines that the first access resource can ensure that the terminal performs a random access process, and then determines to use the first access resource to perform the random access process.

[0132] In a possible implementation manner, the first random access signal includes second information, where the second information is used to indicate an access resource that the terminal prefers to use.

[0133] In an embodiment of the present application, the terminal may carry information indicating the access resources that the terminal prefers to use in the random access signal fed back, so as to assist the network-side device in selecting access resources.

[0134] It should be noted that the access resource indicated by the second information is only a reference for the network side device, and does not mean that the network side device will select the access resource according to the instruction of the second information. The final selected access resource is still determined by the network side device.

[0135] In a possible implementation, the network-side device determines, according to the first random access signal, to use the second access resource to perform a random access process, including:

[0136] The network side device determines, according to the third information in the first random access signal, to use the second access resource to perform the random access process;

[0137] The third information is used to request the second access resource.

[0138] An embodiment of the present application also provides an iterative random access process centered on a terminal. Specifically, the terminal side determines, based on the first access resource provided by the network side, that the first access resource cannot satisfy the execution of the random access process. Therefore, the terminal side can independently determine the second access resource and request the second access resource from the network side through a first random access signal.

[0139] In a possible implementation manner, the first discovery reference signal includes fourth information, where the fourth information is used to indicate access resources enabled by the network-side device.

[0140] In an embodiment of the present application, when the network side device sends the first discovery reference signal, it can carry information for indicating the access resources that the network side device has enabled. The purpose of this information is to tell the terminal which access resources are currently available in addition to the first access resource. This is because the network side may also provide other access resources while providing the first access resource. For example, the base station will always provide basic access resources through broadcasting, and will also provide some optional access resources synchronously during part of the time. If the access resources autonomously determined by the above-mentioned terminal happen to be included in the access resources enabled by the network side device, it means that the access resources autonomously determined by the terminal are being used by the network side, and the terminal can directly use the access resources to perform the random access process.

[0141] In a possible implementation, the first random access response signal is specifically used to schedule the terminal to send message 3, and the second random access response signal is specifically used to indicate the second access resource.

[0142] In an embodiment of the present application, with respect to the above-mentioned random access response signals respectively used to configure the terminal to perform the first random access procedure or the second random access procedure, the first random access response signal used to configure the terminal to perform the first random access procedure is specifically used to schedule the terminal to send message 3, and the second random access response signal used to configure the terminal to perform the second random access procedure is specifically used to indicate the second access resource.

[0143] In a possible implementation manner, the first random access response signal and the second random access response signal satisfy at least one of the following:

[0144] (1) The first random access response signal and the second random access response signal use different downlink resource spaces;

[0145] (2) The respectively configured downlink resource spaces used by the first random access response signal and the second random access response signal.

[0146] That is, after the downlink signal is used to transmit different information, different downlink resource spaces can be used for transmission:

[0147] (1) A first downlink resource space, used to transmit an RAR, where the RAR is used to carry an optional access resource indication;

[0148] (2) The second downlink resource space is used to transmit the RAR that schedules the UE to send Msg3.

[0149] In a possible implementation, the second random access response signal is a signal sequence, and there is a second corresponding relationship between the signal sequence and the second access resource.

[0150] In an embodiment of the present application, a RAR design is provided for indicating a second access resource through a second random access response signal. Based on this design, the RAR is used to instruct the UE to perform a random access procedure based on an optional access resource, as follows:

[0151] RAR uses a signal sequence that corresponds to the Xth optional access resource. This means that at least one set of optional access resources can correspond to different signal sequences. Based on the received signal sequence, the UE determines that the base station will provide the Xth optional access resource corresponding to that signal sequence, and the UE performs random access based on the Xth optional access resource. The advantage of using a signal sequence is that the coding gain of the signal sequence is greater than that of a typical digital signal, which can improve coverage.

[0152] Optionally, the RAR may include downlink control information (DCI). The DCI transmission report may optionally include a special aggregation level configuration to ensure a wider coverage range. For example, the base station may configure the UE to detect the RAR only based on a larger aggregation level range. As an example, if the aggregation level range of the DCI scheduled for uplink and downlink transmission after the connection is established is (1, 2, 4, 8), the aggregation level range of the DCI carrying the optional access resource indication may be determined to be (16, 32, 64). At this time, the UE is far away from the base station, and the base station will not use a smaller aggregation level to transmit DCI. To reduce the delay in the UE detecting DCI, the UE may be allowed to detect only a larger aggregation level.

[0153] See also Figure 4 , an embodiment of the present application provides an access method, the execution subject of the method is a terminal, and the method includes:

[0154] Step 401: The terminal obtains a first access resource;

[0155] Step 401: The terminal sends a first random access signal to a network-side device;

[0156] Step 401: The terminal determines to perform a first random access procedure or a second random access procedure according to a response signal to a first random access signal;

[0157] The first random access process is a random access process based on a first access resource, and the second random access process is an access process based on a second access resource.

[0158] In one possible implementation, the first access resource and the second access resource satisfy at least one of the following:

[0159] (1) The signal beam gain based on the second access resource is greater than the signal beam gain based on the first access resource;

[0160] (2) The second access resource is determined by the network side device based on the access requirements of the terminal.

[0161] In an embodiment of the present application, a network-side device provides a first access resource to a terminal and receives a first random access signal from the terminal. Based on the first random access signal, the network device then determines whether to execute a first random access procedure based on the first access resource or a second random access procedure based on the second access resource. In this way, the network flexibly selects an appropriate access resource based on the random access signal fed back by the terminal and executes the corresponding access procedure. This eliminates the need for the network to perform full resource configuration for all beams, saving resource overhead, and eliminates the need for the terminal to perform full-range scanning for all beams, reducing access latency.

[0162] It should be noted that the terminal, as the opposite-side device interacting with the network-side device, adopts the same understanding of the same or corresponding technical content in the method to ensure that both can normally execute the method provided by this application. It is understood that in the following description of the terminal-side method, the technical content that is the same or corresponding to that on the network side can be directly understood by referring to the description on the network side, and no further repetition will be made.

[0163] In a possible implementation, the terminal acquires the first access resource, including at least one of the following:

[0164] The terminal receives a first discovery reference signal from a network side device;

[0165] The terminal receives the configuration of the first random access channel resource from the network side device;

[0166] There is a first corresponding relationship between the first discovery reference signal and the first random access channel resource, and the first random access channel resource is used by the terminal to send the first random access signal to the network side device.

[0167] In a possible implementation, the terminal determines, according to a response signal to the first random access signal, to perform the first random access procedure or the second random access procedure, including any one of the following:

[0168] The terminal determines, according to the first random access response signal received from the network side device, to perform the first random access procedure, where the first random access response signal is used to configure the terminal to perform the first random access procedure;

[0169] The terminal determines to perform the second random access procedure according to the second random access response signal received from the network side device, where the second random access response signal is used to configure the terminal to perform the second random access procedure.

[0170] In a possible implementation, sending a first random access signal to a network-side device includes:

[0171] The terminal sends first information to the network side device through a first random access signal;

[0172] The first information is used to indicate information of a first discovery reference signal.

[0173] In a possible implementation manner, the information of the first discovery reference signal includes at least one of the following:

[0174] identification information of the first discovery reference signal;

[0175] First, discover the beam coverage level information of the reference signal;

[0176] First, find the strength information of the reference signal;

[0177] First, discover the quality information of the reference signal;

[0178] Quality information of the uplink and downlink wireless channels between the network-side equipment and the terminal;

[0179] Code sequence information of a first discovery reference signal;

[0180] Time-frequency resource information used to transmit the first discovery reference signal.

[0181] In a possible implementation manner, the first random access signal includes second information, where the second information is used to indicate an access resource that the terminal prefers to use.

[0182] In a possible implementation, sending a first random access signal to a network-side device includes:

[0183] In a case where the terminal determines to use the second access resource to perform the random access procedure according to the first access resource, the terminal determines the second access resource;

[0184] The terminal sends third information to the network side device through the first random access signal;

[0185] The third information is used to request the second access resource.

[0186] In a possible implementation, the first discovery reference signal includes fourth information, where the fourth information is used to indicate access resources enabled by the network-side device. The terminal sends third information to the network-side device through the first random access signal, including:

[0187] In a case where the access resources enabled by the network side device do not include the second access resource, the terminal sends third information to the network side device through the first random access signal.

[0188] In this embodiment of the present application, the UE detects a basic discovery reference signal beam (i.e., a first access resource) and measures the strength or quality of the basic discovery reference signal beam. Based on the difference between the strength of the selected discovery reference signal and the discovery reference signal strength / quality required to establish a wireless connection, the UE determines whether to configure the target optional access resource (i.e., a second access resource).

[0189] The UE determines whether the base station has enabled the target optional access resource based on the received basic discovery reference signal information and executes the optional access resource request process:

[0190] (1) If the basic discovery reference signal carries indication information indicating that the target optional access resource is in effect, that is, the base station is sending a discovery reference signal beam of the target optional access resource and the UE can use the random access resource corresponding to the target optional access resource, the random access procedure is directly performed based on the target optional access resource;

[0191] (2) If the indication information indicates that the target optional access resource is not in effect or the basic discovery reference signal does not carry information indicating that the target optional access resource is in effect, the UE sends a request signal to the base station, requesting the base station to provide the target optional access resource; the receiving / transmitting beam gain provided by the target optional access resource is greater than the beam gain of the basic reference signal, or

[0192] (3) The UE detects the discovery reference signal beam included in the target optional access resource:

[0193] If the UE does not detect the discovery reference signal beam included in the target optional access resource, it sends a request signal to the base station, requesting the base station to provide the target optional access resource;

[0194] If the UE detects a discovery reference signal beam included in the target optional access resource, it performs a random access procedure based on the optional access resource.

[0195] In a possible implementation, the first random access response signal is specifically used to schedule the terminal to send message 3;

[0196] The second random access response signal is specifically used to indicate the second access resource.

[0197] In a possible implementation manner, the first random access response signal and the second random access response signal satisfy at least one of the following:

[0198] (1) The first random access response signal and the second random access response signal use different downlink resource spaces;

[0199] (2) The respectively configured downlink resource spaces used by the first random access response signal and the second random access response signal.

[0200] In a possible implementation, the second random access response signal is a signal sequence, and there is a second corresponding relationship between the signal sequence and the second access resource.

[0201] Optionally, when performing random access based on optional access resources, the UE may adjust the RA transmit power for random access initiated based on the optional access resources based on the transmit power of the RA preamble of the previous random access performed based on the basic access resources. That is, the terminal adjusts the transmit power of the current random access procedure based on the transmit power of the previously executed random access procedure. This can quickly meet the receive power level detected by the base station, thereby increasing the probability of the base station detecting the RA preamble and reducing the number of RA preambles sent based on the optional access resources.

[0202] The access method provided in the embodiment of the present application may be executed by an access device. In the embodiment of the present application, the access device provided in the embodiment of the present application is described by taking the access method executed by the access device as an example.

[0203] See also Figure 5 The embodiment of the present application provides an access device, which can be applied to a network-side device, including:

[0204] A first sending module 501 is configured for a network-side device to send a first access resource to a terminal;

[0205] A receiving module 502 is configured for the network side device to receive a first random access signal from the terminal;

[0206] A first determining module 503 is configured for the network side device to determine, according to the first random access signal, whether the terminal performs a first random access procedure or a second random access procedure;

[0207] The first random access procedure is a random access procedure based on the first access resource, and the second random access procedure is an access procedure based on the second access resource.

[0208] In a possible implementation manner, the first access resource and the second access resource satisfy at least one of the following:

[0209] The signal beam gain based on the second access resource is greater than the signal beam gain based on the first access resource;

[0210] The second access resource is determined by the network side device based on the access requirement of the terminal.

[0211] In a possible implementation manner, the first sending module is specifically configured to do at least one of the following:

[0212] The network side device sends a first discovery reference signal to the terminal;

[0213] The network side device sends the configuration of the first random access channel resource to the terminal;

[0214] There is a first corresponding relationship between the first discovery reference signal and the first random access channel resource, and the first random access channel resource is used by the terminal to send the first random access signal to the network side device.

[0215] In a possible implementation manner, the first determining module is specifically configured to:

[0216] When the network-side device determines, according to the first random access signal, to use the first access resource to perform a random access procedure, the network-side device sends a first random access response signal to the terminal, where the first random access response signal is used to configure the terminal to perform the first random access procedure;

[0217] When the network-side device determines, based on the first random access signal, to use the second access resource to perform a random access procedure, the network-side device sends a second random access response signal to the terminal, where the second random access response signal is used to configure the terminal to perform the second random access procedure.

[0218] In a possible implementation manner, the first determining module is specifically configured to:

[0219] The network-side device determines, according to the first information in the first random access signal, to use the first access resource or the second access resource to perform a random access process;

[0220] The first information is used to indicate information of the first discovery reference signal.

[0221] In a possible implementation manner, the information of the first discovery reference signal includes at least one of the following:

[0222] identification information of the first discovery reference signal;

[0223] beam coverage level information of the first discovery reference signal;

[0224] strength information of the first discovery reference signal;

[0225] quality information of the first discovery reference signal;

[0226] Quality information of uplink and downlink wireless channels between the network side device and the terminal;

[0227] code sequence information of the first discovery reference signal;

[0228] Time-frequency resource information used to transmit the first discovery reference signal.

[0229] In a possible implementation manner, the first determining module is specifically configured to:

[0230] When a first condition is met, determining to use the first access resource to perform a random access procedure:

[0231] The first condition includes at least one of the following:

[0232] The strength of the first discovery reference signal is higher than a first strength threshold;

[0233] The quality of the first discovery reference signal is higher than a first quality threshold;

[0234] The quality of the uplink and downlink wireless channels between the network side device and the terminal is higher than a second quality threshold;

[0235] The strength of the first random access signal is higher than a second strength threshold;

[0236] The quality of the first random access signal is higher than a third quality threshold;

[0237] The first random access signal explicitly or implicitly requests completion of a random access procedure based on the first access resource.

[0238] In a possible implementation manner, the first random access signal includes second information, where the second information is used to indicate an access resource that the terminal prefers to use.

[0239] In a possible implementation manner, the first determining module is specifically configured to:

[0240] The network-side device determines, according to the third information in the first random access signal, to use the second access resource to perform a random access process;

[0241] The third information is used to request the second access resource.

[0242] In a possible implementation manner, the first discovery reference signal includes fourth information, where the fourth information is used to indicate access resources enabled by the network-side device.

[0243] In a possible implementation manner, the first random access response signal is specifically used to schedule the terminal to send message 3;

[0244] The second random access response signal is specifically used to indicate the second access resource.

[0245] In a possible implementation manner, the first access resource and the second access resource satisfy at least one of the following:

[0246] The signal beam gain based on the second access resource is greater than the signal beam gain based on the first access resource;

[0247] The second access resource is determined by the network side device based on the access requirement of the terminal.

[0248] In a possible implementation manner, the second random access response signal is a signal sequence, and there is a second corresponding relationship between the signal sequence and the second access resource.

[0249] See also Figure 6 , an embodiment of the present application provides an access device, which can be applied to a terminal, including:

[0250] Acquisition module 601, configured for a terminal to acquire a first access resource;

[0251] A second sending module 602 is configured for the terminal to send a first random access signal to the network side device;

[0252] A second determining module 603 is configured for the terminal to determine, according to a response signal to the first random access signal, whether to perform a first random access procedure or a second random access procedure;

[0253] The first random access procedure is a random access procedure based on the first access resource, and the second random access procedure is an access procedure based on the second access resource.

[0254] In a possible implementation manner, the first access resource and the second access resource satisfy at least one of the following:

[0255] The signal beam gain based on the second access resource is greater than the signal beam gain based on the first access resource;

[0256] The second access resource is determined by the network side device based on the access requirement of the terminal.

[0257] In a possible implementation, the acquisition module is specifically configured to perform at least one of the following:

[0258] The terminal receives a first discovery reference signal from the network side device;

[0259] The terminal receives configuration of a first random access channel resource from the network side device;

[0260] There is a first corresponding relationship between the first discovery reference signal and the first random access channel resource, and the first random access channel resource is used by the terminal to send the first random access signal to the network side device.

[0261] In a possible implementation manner, the second determining module is specifically configured to do at least one of the following:

[0262] The terminal determines, according to a first random access response signal received from the network-side device, to perform the first random access procedure, where the first random access response signal is used to configure the terminal to perform the first random access procedure;

[0263] or,

[0264] The terminal determines to perform the second random access procedure according to a second random access response signal received from the network-side device, where the second random access response signal is used to configure the terminal to perform the second random access procedure.

[0265] In a possible implementation manner, the second sending module is specifically configured to:

[0266] The terminal sends first information to the network side device through the first random access signal;

[0267] The first information is used to indicate information of the first discovery reference signal.

[0268] In a possible implementation manner, the information of the first discovery reference signal includes at least one of the following:

[0269] identification information of the first discovery reference signal;

[0270] beam coverage level information of the first discovery reference signal;

[0271] strength information of the first discovery reference signal;

[0272] quality information of the first discovery reference signal;

[0273] Quality information of uplink and downlink wireless channels between the network side device and the terminal;

[0274] code sequence information of the first discovery reference signal;

[0275] Time-frequency resource information used to transmit the first discovery reference signal.

[0276] In a possible implementation manner, the first random access signal includes second information, where the second information is used to indicate an access resource that the terminal prefers to use.

[0277] In a possible implementation manner, the second sending module is specifically configured to:

[0278] In a case where the terminal determines to use the second access resource to perform a random access procedure according to the first access resource, the terminal determines the second access resource;

[0279] The terminal sends third information to the network side device through the first random access signal;

[0280] The third information is used to request the second access resource.

[0281] In a possible implementation manner, the first discovery reference signal includes fourth information, where the fourth information is used to indicate access resources enabled by the network-side device, and the second sending module is specifically configured to:

[0282] In a case where the access resources enabled by the network-side device do not include the second access resource, the terminal sends the third information to the network-side device through the first random access signal.

[0283] In a possible implementation manner, the first random access response signal is specifically used to schedule the terminal to send message 3;

[0284] The second random access response signal is specifically used to indicate the second access resource.

[0285] In a possible implementation manner, the first access resource and the second access resource satisfy at least one of the following:

[0286] The signal beam gain based on the second access resource is greater than the signal beam gain based on the first access resource;

[0287] The second access resource is determined by the network side device based on the access requirement of the terminal.

[0288] In a possible implementation manner, the second random access response signal is a signal sequence, and there is a second corresponding relationship between the signal sequence and the second access resource.

[0289] The access device in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or chip. The electronic device can be a terminal or other device other than a terminal. For example, the terminal can include but is not limited to the types of terminal 11 listed above, and other devices can be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0290] The access device provided in the embodiment of the present application can achieve Figures 2 to 4 The various processes implemented by the method embodiment achieve the same technical effect and are not described here again to avoid repetition.

[0291] like Figure 7 As shown, an embodiment of the present application further provides a communication device 700, including a processor 701 and a memory 702, wherein the memory 702 stores a program or instruction that can be run on the processor 701. For example, when the communication device 700 is a terminal, the program or instruction, when executed by the processor 701, implements the various steps of the above-mentioned method embodiment and can achieve the same technical effect. When the communication device 700 is a network-side device, the program or instruction, when executed by the processor 701, implements the various steps of the above-mentioned method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0292] The present application also provides a network-side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method embodiment. This network-side device embodiment corresponds to the aforementioned network-side device method embodiment, and each implementation process and implementation method of the aforementioned method embodiment are applicable to this network-side device embodiment and can achieve the same technical effects.

[0293] Specifically, the embodiment of the present application also provides a network side device. Figure 8 As shown, network-side device 800 includes an antenna 81, a radio frequency device 82, a baseband device 83, a processor 84, and a memory 85. Antenna 81 is connected to radio frequency device 82. In the uplink direction, radio frequency device 82 receives information via antenna 81 and sends the received information to baseband device 83 for processing. In the downlink direction, baseband device 83 processes the information to be transmitted and sends it to radio frequency device 82. Radio frequency device 82 processes the received information and then sends it through antenna 81.

[0294] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 83 , which includes a baseband processor.

[0295] The baseband device 83 may include, for example, at least one baseband board on which a plurality of chips are arranged, such as Figure 8 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 85 via a bus interface to call the program in the memory 85 to execute the network side device operations shown in the above method embodiment.

[0296] The network side device may further include a network interface 86, which is, for example, a Common Public Radio Interface (CPRI).

[0297] Specifically, the network side device 800 of the embodiment of the present application further includes: instructions or programs stored in the memory 85 and executable on the processor 84, and the processor 84 calls the instructions or programs in the memory 85 to execute. Figure 5 The methods executed by the modules shown achieve the same technical effects, so they will not be described here to avoid repetition.

[0298] Specifically, the embodiment of the present application also provides a network side device. Figure 9 As shown, the network side device 900 includes: a processor 901, a network interface 902 and a memory 903. The network interface 902 is, for example, a common public radio interface (CPRI).

[0299] Specifically, the network side device 900 of the embodiment of the present application further includes: instructions or programs stored in the memory 903 and executable on the processor 901, and the processor 901 calls the instructions or programs in the memory 903 to execute. Figure 5 The methods executed by the modules shown achieve the same technical effects, so they will not be described here to avoid repetition.

[0300] The embodiment of the present application further provides a terminal, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the following Figure 6 The steps in the method embodiment shown. This terminal embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this terminal embodiment and can achieve the same technical effect. Specifically, Figure 10 A schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present application.

[0301] The terminal 1000 includes but is not limited to: a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009 and at least some of the components of the processor 1010.

[0302] Those skilled in the art will understand that the terminal 1000 may also include a power supply (such as a battery) to power each component, and the power supply may be logically connected to the processor 1010 through a power management system, thereby implementing functions such as charging, discharging, and power consumption management through the power management system. Figure 10 The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be repeated here.

[0303] It should be understood that in an embodiment of the present application, the input unit 1004 may include a graphics processing unit (GPU) 10041 and a microphone 10042, and the graphics processor 10041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 1006 may include a display panel 10061, and the display panel 10061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1007 includes a touch panel 10071 and at least one of other input devices 10072. The touch panel 10071 is also called a touch screen. The touch panel 10071 may include two parts: a touch detection device and a touch controller. Other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and an operating stick, which will not be repeated here.

[0304] In the embodiment of the present application, after receiving downlink data from a network-side device, the RF unit 1001 may transmit the data to the processor 1010 for processing. Furthermore, the RF unit 1001 may send uplink data to the network-side device. Typically, the RF unit 1001 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0305] The memory 1009 can be used to store software programs or instructions and various data. The memory 1009 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 1009 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM), and a direct memory bus random access memory (DRRAM). The memory 1009 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0306] Processor 1010 may include one or more processing units. Optionally, processor 1010 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 1010.

[0307] The processor 1010 is configured for the terminal to obtain a first access resource;

[0308] Processor 1010 is configured to cause the terminal to send a first random access signal to the network-side device;

[0309] Processor 1010, configured for the terminal to determine, according to a response signal to the first random access signal, whether to perform a first random access procedure or a second random access procedure;

[0310] The first random access procedure is a random access procedure based on the first access resource, and the second random access procedure is an access procedure based on the second access resource.

[0311] In a possible implementation manner, the first access resource and the second access resource satisfy at least one of the following:

[0312] The signal beam gain based on the second access resource is greater than the signal beam gain based on the first access resource;

[0313] The second access resource is determined by the network side device based on the access requirement of the terminal.

[0314] In one possible implementation, the processor 1010 is specifically configured to do at least one of the following:

[0315] The terminal receives a first discovery reference signal from the network side device;

[0316] The terminal receives configuration of a first random access channel resource from the network side device;

[0317] There is a first corresponding relationship between the first discovery reference signal and the first random access channel resource, and the first random access channel resource is used by the terminal to send the first random access signal to the network side device.

[0318] In one possible implementation, the processor 1010 is specifically configured to do at least one of the following:

[0319] The terminal determines, according to a first random access response signal received from the network-side device, to perform the first random access procedure, where the first random access response signal is used to configure the terminal to perform the first random access procedure;

[0320] or,

[0321] The terminal determines to perform the second random access procedure according to a second random access response signal received from the network-side device, where the second random access response signal is used to configure the terminal to perform the second random access procedure.

[0322] In a possible implementation, the processor 1010 is specifically configured to:

[0323] The terminal sends first information to the network side device through the first random access signal;

[0324] The first information is used to indicate information of the first discovery reference signal.

[0325] In a possible implementation manner, the information of the first discovery reference signal includes at least one of the following:

[0326] identification information of the first discovery reference signal;

[0327] beam coverage level information of the first discovery reference signal;

[0328] strength information of the first discovery reference signal;

[0329] quality information of the first discovery reference signal;

[0330] Quality information of uplink and downlink wireless channels between the network side device and the terminal;

[0331] code sequence information of the first discovery reference signal;

[0332] Time-frequency resource information used to transmit the first discovery reference signal.

[0333] In a possible implementation manner, the first random access signal includes second information, where the second information is used to indicate an access resource that the terminal prefers to use.

[0334] In a possible implementation, the processor 1010 is specifically configured to:

[0335] In a case where the terminal determines to use the second access resource to perform a random access procedure according to the first access resource, the terminal determines the second access resource;

[0336] The terminal sends third information to the network side device through the first random access signal;

[0337] The third information is used to request the second access resource.

[0338] In a possible implementation manner, the first discovery reference signal includes fourth information, where the fourth information is used to indicate access resources enabled by the network-side device. The processor 1010 is specifically configured to:

[0339] In a case where the access resources enabled by the network-side device do not include the second access resource, the terminal sends the third information to the network-side device through the first random access signal.

[0340] In a possible implementation manner, the first random access response signal is specifically used to schedule the terminal to send message 3;

[0341] The second random access response signal is specifically used to indicate the second access resource.

[0342] In a possible implementation manner, the first access resource and the second access resource satisfy at least one of the following:

[0343] The signal beam gain based on the second access resource is greater than the signal beam gain based on the first access resource;

[0344] The second access resource is determined by the network side device based on the access requirement of the terminal.

[0345] In a possible implementation manner, the second random access response signal is a signal sequence, and there is a second corresponding relationship between the signal sequence and the second access resource.

[0346] It can be 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 effects. To avoid repetition, it will not be described here.

[0347] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0348] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0349] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned method embodiment and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0350] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0351] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the above-mentioned method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0352] An embodiment of the present application also provides a wireless communication system, including: a terminal and a network side device, wherein the terminal can be used to execute the steps of the terminal side method described above, and the network side device can be used to execute the steps of the network side method described above.

[0353] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0354] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general-purpose hardware platform, or of course, by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes a number of instructions for enabling a terminal or network-side device to execute the methods described in each embodiment of the present application.

[0355] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of this application and the scope of protection of the claims. These implementation methods are all within the protection of this application.

Claims

1. An access method, characterized in that: include: The network side device sends the first access resource to the terminal; The network side device receives a first random access signal from the terminal; The network side device determines, according to the first random access signal, that the terminal performs a first random access procedure or a second random access procedure; The first random access procedure is a random access procedure based on the first access resource, and the second random access procedure is an access procedure based on the second access resource.

2. The method according to claim 1, characterized in that The first access resource and the second access resource satisfy at least one of the following: The signal beam gain based on the second access resource is greater than the signal beam gain based on the first access resource; The second access resource is determined by the network side device based on the access requirement of the terminal.

3. The method according to claim 1 or 2, characterized in that The network-side device sends the first access resource to the terminal, including at least one of the following: The network side device sends a first discovery reference signal to the terminal; The network side device sends the configuration of the first random access channel resource to the terminal; There is a first corresponding relationship between the first discovery reference signal and the first random access channel resource, and the first random access channel resource is used by the terminal to send the first random access signal to the network side device.

4. The method according to any one of claims 1 to 3, characterized in that The network-side device determining, according to the first random access signal, that the terminal performs the first random access procedure or the second random access procedure includes at least one of the following: When the network-side device determines, according to the first random access signal, to use the first access resource to perform a random access procedure, the network-side device sends a first random access response signal to the terminal, where the first random access response signal is used to configure the terminal to perform the first random access procedure; When the network-side device determines, based on the first random access signal, to use the second access resource to perform a random access procedure, the network-side device sends a second random access response signal to the terminal, where the second random access response signal is used to configure the terminal to perform the second random access procedure.

5. The method according to claim 4, characterized in that The network-side device determines, according to the first random access signal, to use the first access resource or the second access resource to perform a random access process, including: The network-side device determines, according to the first information in the first random access signal, to use the first access resource or the second access resource to perform a random access process; The first information is used to indicate information of the first discovery reference signal.

6. The method according to claim 5, characterized in that The information of the first discovery reference signal includes at least one of the following: identification information of the first discovery reference signal; beam coverage level information of the first discovery reference signal; strength information of the first discovery reference signal; quality information of the first discovery reference signal; Quality information of uplink and downlink wireless channels between the network side device and the terminal; code sequence information of the first discovery reference signal; Time-frequency resource information used to transmit the first discovery reference signal.

7. The method according to claim 6, characterized in that The determining to use the first access resource to perform a random access procedure includes: When a first condition is met, determining to use the first access resource to perform a random access procedure: The first condition includes at least one of the following: The strength of the first discovery reference signal is higher than a first strength threshold; The quality of the first discovery reference signal is higher than a first quality threshold; The quality of the uplink and downlink wireless channels between the network side device and the terminal is higher than a second quality threshold; The strength of the first random access signal is higher than a second strength threshold; The quality of the first random access signal is higher than a third quality threshold; The first random access signal explicitly or implicitly requests completion of a random access procedure based on the first access resource.

8. The method according to any one of claims 1 to 3, characterized in that The first random access signal includes second information, where the second information is used to indicate an access resource that the terminal prefers to use.

9. The method according to any one of claims 1 to 3, characterized in that The network-side device determines, according to the first random access signal, to use the second access resource to perform a random access process, including: The network-side device determines, according to the third information in the first random access signal, to use the second access resource to perform a random access process; The third information is used to request the second access resource.

10. The method according to claim 9, characterized in that The first discovery reference signal includes fourth information, where the fourth information is used to indicate access resources enabled by the network-side device.

11. The method according to claim 4, characterized in that The first random access response signal is specifically used to schedule the terminal to send message 3; The second random access response signal is specifically used to indicate the second access resource.

12. The method according to claim 11, characterized in that The first random access response signal and the second random access response signal satisfy at least one of the following: The first random access response signal and the second random access response signal use different downlink resource spaces; The first random access response signal and the second random access response signal use respectively configured downlink resource spaces.

13. The method according to claim 11, characterized in that The second random access response signal is a signal sequence, and there is a second corresponding relationship between the signal sequence and the second access resource.

14. An access method, characterized in that: include: The terminal obtains a first access resource; The terminal sends a first random access signal to the network side device; determining, by the terminal, to perform a first random access procedure or a second random access procedure according to a response signal to the first random access signal; The first random access procedure is a random access procedure based on the first access resource, and the second random access procedure is an access procedure based on the second access resource.

15. The method according to claim 14, characterized in that The first access resource and the second access resource satisfy at least one of the following: The signal beam gain based on the second access resource is greater than the signal beam gain based on the first access resource; The second access resource is determined by the network side device based on the access requirement of the terminal.

16. The method according to claim 14 or 15, characterized in that The terminal acquiring the first access resource includes at least one of the following: The terminal receives a first discovery reference signal from the network side device; The terminal receives configuration of a first random access channel resource from the network side device; There is a first corresponding relationship between the first discovery reference signal and the first random access channel resource, and the first random access channel resource is used by the terminal to send the first random access signal to the network side device.

17. The method according to any one of claims 14 to 16, characterized in that The terminal determining, according to a response signal to the first random access signal, to perform a first random access procedure or a second random access procedure includes at least one of the following: The terminal determines, according to a first random access response signal received from the network-side device, to perform the first random access procedure, where the first random access response signal is used to configure the terminal to perform the first random access procedure; The terminal determines to perform the second random access procedure according to a second random access response signal received from the network-side device, where the second random access response signal is used to configure the terminal to perform the second random access procedure.

18. The method according to claim 17, characterized in that The sending a first random access signal to the network side device includes: The terminal sends first information to the network side device through the first random access signal; The first information is used to indicate information of the first discovery reference signal.

19. The method according to claim 18, characterized in that The information of the first discovery reference signal includes at least one of the following: identification information of the first discovery reference signal; beam coverage level information of the first discovery reference signal; strength information of the first discovery reference signal; quality information of the first discovery reference signal; Quality information of uplink and downlink wireless channels between the network side device and the terminal; code sequence information of the first discovery reference signal; Time-frequency resource information used to transmit the first discovery reference signal.

20. The method according to any one of claims 14 to 16, characterized in that The first random access signal includes second information, where the second information is used to indicate an access resource that the terminal prefers to use.

21. The method according to any one of claims 14 to 16, characterized in that The sending a first random access signal to the network side device includes: In a case where the terminal determines to use the second access resource to perform a random access procedure according to the first access resource, the terminal determines the second access resource; The terminal sends third information to the network side device through the first random access signal; The third information is used to request the second access resource.

22. The method according to claim 21, characterized in that The first discovery reference signal includes fourth information, where the fourth information is used to indicate access resources enabled by the network side device, and the terminal sends third information to the network side device through the first random access signal, including: In a case where the access resources enabled by the network-side device do not include the second access resource, the terminal sends the third information to the network-side device through the first random access signal.

23. The method according to claim 17, wherein The first random access response signal is specifically used to schedule the terminal to send message 3; The second random access response signal is specifically used to indicate the second access resource.

24. The method according to claim 23, wherein The first random access response signal and the second random access response signal satisfy at least one of the following: The first random access response signal and the second random access response signal use different downlink resource spaces; The first random access response signal and the second random access response signal use respectively configured downlink resource spaces.

25. The method according to claim 23, wherein The second random access response signal is a signal sequence, and there is a second corresponding relationship between the signal sequence and the second access resource.

26. An access device, characterized in that: include: A first sending module, configured for a network-side device to send a first access resource to a terminal; A receiving module, configured for the network-side device to receive a first random access signal from the terminal; A first determining module, configured for the network side device to determine, according to the first random access signal, whether the terminal performs a first random access procedure or a second random access procedure; The first random access process is a random access process based on the first access resource, the second random access process is an access process based on the second access resource, and the beam gain of the second access resource is greater than the beam gain of the first access resource.

27. The device according to claim 26, characterized in that The first access resource and the second access resource satisfy at least one of the following: The signal beam gain based on the second access resource is greater than the signal beam gain based on the first access resource; The second access resource is determined by the network side device based on the access requirement of the terminal.

28. The device according to claim 26 or 27, characterized in that The first sending module is specifically configured to do at least one of the following: The network side device sends a first discovery reference signal to the terminal; The network side device sends the configuration of the first random access channel resource to the terminal; There is a first corresponding relationship between the first discovery reference signal and the first random access channel resource, and the first random access channel resource is used by the terminal to send the first random access signal to the network side device.

29. The device according to any one of claims 26 to 28, characterized in that The first determining module is specifically configured to perform at least one of the following: When the network-side device determines, according to the first random access signal, to use the first access resource to perform a random access procedure, the network-side device sends a first random access response signal to the terminal, where the first random access response signal is used to configure the terminal to perform the first random access procedure; When the network-side device determines, based on the first random access signal, to use the second access resource to perform a random access procedure, the network-side device sends a second random access response signal to the terminal, where the second random access response signal is used to configure the terminal to perform the second random access procedure.

30. The device according to claim 29, characterized in that The first determining module is specifically configured to: The network-side device determines, according to the first information in the first random access signal, to use the first access resource or the second access resource to perform a random access process; The first information is used to indicate information of the first discovery reference signal.

31. The device according to claim 30, characterized in that The information of the first discovery reference signal includes at least one of the following: identification information of the first discovery reference signal; beam coverage level information of the first discovery reference signal; strength information of the first discovery reference signal; quality information of the first discovery reference signal; Quality information of uplink and downlink wireless channels between the network side device and the terminal; code sequence information of the first discovery reference signal; Time-frequency resource information used to transmit the first discovery reference signal.

32. The device according to claim 29, characterized in that The first determining module is specifically configured to: When a first condition is met, determining to use the first access resource to perform a random access procedure: The first condition includes at least one of the following: The strength of the first discovery reference signal is higher than a first strength threshold; The quality of the first discovery reference signal is higher than a first quality threshold; The quality of the uplink and downlink wireless channels between the network side device and the terminal is higher than a second quality threshold; The strength of the first random access signal is higher than a second strength threshold; The quality of the first random access signal is higher than a third quality threshold; The first random access signal explicitly or implicitly requests completion of a random access procedure based on the first access resource.

33. The device according to any one of claims 26 to 28, characterized in that The first random access signal includes second information, where the second information is used to indicate an access resource that the terminal prefers to use.

34. The device according to any one of claims 26 to 28, characterized in that The first determining module is specifically configured to: The network-side device determines, according to the third information in the first random access signal, to use the second access resource to perform a random access process; The third information is used to request the second access resource.

35. An access device, characterized in that: include: An acquisition module, configured for a terminal to acquire a first access resource; A second sending module, configured for the terminal to send a first random access signal to the network side device; a second determining module, configured for the terminal to determine, according to a response signal to the first random access signal, whether to perform a first random access procedure or a second random access procedure; The first random access procedure is a random access procedure based on the first access resource, and the second random access procedure is an access procedure based on the second access resource.

36. The device according to claim 35, characterized in that The first access resource and the second access resource satisfy at least one of the following: The signal beam gain based on the second access resource is greater than the signal beam gain based on the first access resource; The second access resource is determined by the network side device based on the access requirement of the terminal.

37. The device according to claim 35 or 36, characterized in that The acquisition module is specifically used for at least one of the following: The terminal receives a first discovery reference signal from the network side device; The terminal receives configuration of a first random access channel resource from the network side device; There is a first corresponding relationship between the first discovery reference signal and the first random access channel resource, and the first random access channel resource is used by the terminal to send the first random access signal to the network side device.

38. The device according to any one of claims 35 to 37, characterized in that The second determining module is specifically configured to perform at least one of the following: The terminal determines, according to a first random access response signal received from the network-side device, to perform the first random access procedure, where the first random access response signal is used to configure the terminal to perform the first random access procedure; The terminal determines to perform the second random access procedure according to a second random access response signal received from the network-side device, where the second random access response signal is used to configure the terminal to perform the second random access procedure.

39. The device according to claim 38, characterized in that The second sending module is specifically configured to: The terminal sends first information to the network side device through the first random access signal; The first information is used to indicate information of the first discovery reference signal.

40. The device according to claim 39, characterized in that The information of the first discovery reference signal includes at least one of the following: identification information of the first discovery reference signal; beam coverage level information of the first discovery reference signal; strength information of the first discovery reference signal; quality information of the first discovery reference signal; Quality information of uplink and downlink wireless channels between the network side device and the terminal; code sequence information of the first discovery reference signal; Time-frequency resource information used to transmit the first discovery reference signal.

41. The device according to any one of claims 35 to 37, characterized in that The first random access signal includes second information, where the second information is used to indicate an access resource that the terminal prefers to use.

42. The device according to any one of claims 35 to 37, characterized in that The second sending module is specifically configured to: In a case where the terminal determines to use the second access resource to perform a random access procedure according to the first access resource, the terminal determines the second access resource; The terminal sends third information to the network side device through the first random access signal; The third information is used to request the second access resource.

43. A network side device, characterized in that: The method comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the access method according to any one of claims 1 to 12 are implemented.

44. A terminal, characterized in that: The method comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the access method according to any one of claims 13 to 23 are implemented.

45. A readable storage medium, characterized in that The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, the steps of the access method according to any one of claims 1 to 12 are implemented, or the steps of the access method according to any one of claims 13 to 23 are implemented.

46. ​​A computer program product, characterized in that The method comprises computer instructions, which, when executed by a processor, implement the steps of the access method according to any one of claims 1 to 12, or implement the steps of the access method according to any one of claims 13 to 23.

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