Method for acquiring cell dimension configuration information, terminal, and network side device

Abstract

The present application relates to the technical field of wireless communications, and discloses a method for acquiring cell dimension configuration information, a terminal, and a network side device. The method for acquiring the cell dimension configuration information in an embodiment of the present application comprises: a terminal receives a first cell discovery signal; and on the basis of the received first cell discovery signal, the terminal acquires configuration information of a first dimension where the terminal is located. The first dimension is one dimension of a target cell, the target cell comprises at least one dimension, and one dimension among the at least one dimension corresponds to at least one of the following: at least one sub-region of the target cell, at least one sub-space of the target cell, at least one sub-cell of the target cell, a coverage range of at least some beams among a plurality of beams of the target cell, and a beam set, wherein the beam set comprises the coverage range of the at least some beams among the plurality of beams of the target cell.

Description

Method, terminal, and network-side device for obtaining cell-dimensional configuration information

[0001] Cross-references

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on December 28, 2023, with application number 202311842566.4 and application name “Method, terminal and network side equipment for obtaining cell dimension configuration information”. The entire contents of the application are incorporated by reference into this application. Technical Field

[0003] The present application belongs to the field of wireless communication technology, and specifically relates to a method for obtaining cell-dimensional configuration information, a terminal, and a network-side device. Background Art

[0004] With the development of antenna technology, the flexibility of cell coverage has increased. In the current New Radio (NR) technology, the same cell can use several Synchronization Signal Block (SSB) beams as the cell discovery signal. User Equipment (UE) can discover and access the cell by monitoring the discovery signal.

[0005] However, there is no effective solution in the related art for configuring the cell discovery signal. Summary of the Invention

[0006] The embodiments of the present application provide a method, terminal, and network-side device for obtaining cell-dimensional configuration information, which can realize configuration through cell discovery signals.

[0007] In the first aspect, a method for obtaining cell dimension configuration information is provided, which is executed by a terminal, and the method includes: the terminal receives a first cell discovery signal; the terminal obtains the configuration information of the first dimension in which the terminal is located based on the received first cell discovery signal; wherein the first dimension is a dimension of the target cell, and the target cell includes at least one dimension, and one dimension corresponds to at least one of the following: at least one sub-area of ​​the target cell; at least one subspace of the target cell; at least one subcell of the target cell; the coverage range of at least part of the multiple beams of the target cell; a beam set, and the beam set includes the coverage range of at least part of the multiple beams of the target cell.

[0008] In the second aspect, a method for sending a cell discovery signal is provided, which is executed by a network side device, and the method includes: the network side device determines at least one dimension included in the target cell; the network side device sends the cell discovery signal of each dimension respectively according to the discovery signal configuration parameters corresponding to each dimension; wherein the discovery signal configuration parameters of different dimensions are configured separately; one dimension corresponds to at least one of the following: at least one sub-area of ​​the target cell; at least one subspace of the target cell; at least one subcell of the target cell; the coverage range of at least part of the multiple beams of the target cell; a beam set, and the beam set includes the coverage range of at least part of the multiple beams of the target cell.

[0009] According to the third aspect, a device for acquiring cell dimension configuration information is provided, which includes: a first transmission module for receiving a first cell discovery signal; an acquisition module for acquiring configuration information of the first dimension in which the terminal is located based on the received first cell discovery signal; wherein the first dimension is a dimension of the target cell, and the target cell includes at least one dimension, and one dimension corresponds to at least one of the following: at least one sub-area of ​​the target cell; at least one subspace of the target cell; at least one subcell of the target cell; the coverage range of at least part of the multiple beams of the target cell; and a beam set, which includes the coverage range of at least part of the multiple beams of the target cell.

[0010] In a fourth aspect, a device for sending a cell discovery signal is provided, which includes: a determination module for determining at least one dimension included in the target cell; a second transmission module for sending the cell discovery signal of each dimension respectively according to the discovery signal configuration parameters corresponding to each dimension; wherein the discovery signal configuration parameters of different dimensions are configured separately; one dimension corresponds to at least one of the following: at least one sub-area of ​​the target cell; at least one subspace of the target cell; at least one subcell of the target cell; the coverage range of at least part of the multiple beams of the target cell; a beam set, the beam set including the coverage range of at least part of the multiple beams of the target cell.

[0011] In a fifth aspect, a terminal is provided, comprising 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 method described in the first aspect are implemented.

[0012] In a sixth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the processor is used to implement the steps of the method described in the first aspect, and the communication interface is used to couple with the processor.

[0013] In the seventh aspect, a network side device is provided, which 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 second aspect are implemented.

[0014] In an eighth aspect, a network side device is provided, comprising a processor and a communication interface, wherein the processor is used to implement the steps of the method described in the second aspect, and the communication interface is used to couple with the processor.

[0015] 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.

[0016] 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.

[0017] 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 steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0018] 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 steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0019] In the method for obtaining cell dimension configuration information provided in an embodiment of the present application, a terminal can receive a first cell discovery signal; then, based on the received first cell discovery signal, the terminal obtains configuration information of the first dimension in which the terminal is located, wherein the target cell includes at least one dimension. In an embodiment of the present application, a target cell may include multiple dimensions, and the network-side device sends a cell discovery signal corresponding to each dimension in each dimension. The terminal can identify the configuration information of the first dimension in which the terminal is located based on the received target cell signal, thereby enabling configuration for each dimension of the target cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG1 shows a block diagram of a wireless communication system to which embodiments of the present application may be applied;

[0021] FIG2 a shows a schematic diagram of a three-dimensional multi-dimensional cell applicable to an embodiment of the present application;

[0022] FIG2 b shows a schematic diagram of a water-land dual-dimensional cell applicable to an embodiment of the present application;

[0023] FIG2 c shows a schematic diagram of a heterogeneous multi-dimensional cell applicable to an embodiment of the present application;

[0024] FIG3 is a schematic diagram showing a flow chart of a method for acquiring cell-dimensional configuration information provided in an embodiment of the present application;

[0025] FIG4 is a schematic diagram showing a flow chart of a method for sending a cell discovery signal according to an embodiment of the present application;

[0026] FIG5 is a schematic structural diagram of a device for acquiring cell dimension configuration information provided by an embodiment of the present application;

[0027] FIG6 shows a schematic structural diagram of a device for sending a cell discovery signal according to an embodiment of the present application;

[0028] FIG7 shows a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0029] FIG8 is a schematic diagram showing the hardware structure of a terminal provided in an embodiment of the present application;

[0030] FIG9 shows a schematic diagram of the hardware structure of a network-side device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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 technology described 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 illustrative 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) systems. th Generation, 6G) communication system.

[0035] FIG1 is a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 may 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-mounted device (VUE), a ship-mounted device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), a game console, a personal computer (PC), an ATM, or a self-service machine, or 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 (WLAN) access point (AP) or a 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.

[0036] The core network equipment 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 (BSF), application function ( Function, AF), Location Management Function (LMF), Gateway Mobile Location Centre (GMLC), Network Data Analytics Function (NWDAF), etc. It should be noted that in the embodiment of the present application, only the core network equipment in the NR system is taken as an example to introduce, and the specific type of the core network equipment is not limited.

[0037] In related technologies, 5G NR defines a wireless cell based on beam scanning, that is, the NR wireless cell is provided with a cell discovery signal by a set of SSB beams. This set of SSB beams is sent according to a set period (20ms) and power. Each SSB beam provides azimuth coverage, and adjacent SSB beams have partial cross-coverage to provide seamless coverage.

[0038] The SSB consists of the Primary Synchronization Signal (PSS), the Secondary Synchronization Signal (SSS), and the Physical Broadcast Channel (PBCH). A terminal, also known as user equipment (UE), monitors the SSB to determine the presence of a cell, achieve downlink synchronization with the cell, obtain the cell's air interface timing, and receive the configuration of the System Information Block (SIB) 1.

[0039] Because different frequencies have different propagation losses, high-frequency carriers have higher propagation losses than low-frequency carriers. To increase coverage of high-frequency carriers, NR uses large antenna technology to provide narrow beams to improve beamforming gain and enhance cell coverage. Therefore, generally speaking, NR high-frequency cells require more SSB beams to provide coverage for target areas of the same width (angle). The maximum number of SSBs in a cell, L, is 4 when the carrier frequency is below 3 GHz; 8 when the carrier frequency is between 3 GHz and 6 GHz; and 64 when the carrier frequency is above 6 GHz.

[0040] When the UE is in the idle state (RRC_IDLE), it needs to monitor the SSB signal quality of the cell in which it resides at regular intervals to determine whether the signal quality of the current cell is suitable for continued residence. If the signal quality of the current cell is lower than a preset threshold, it is determined that the current cell is not suitable for continued residence. The UE will search for the SSB signals of other cells and measure them. If a new cell with SSB signal quality higher than the preset threshold is found, it will reside in the new cell.

[0041] When the UE is in the connected state (RRC_CONNECTED), the UE measures the current serving cell and neighboring cells according to the configuration of the base station, and generates and sends measurement reports to the serving base station according to the measurement report configuration configured by the base station (including measurement report triggering conditions, measurement report content, etc.). Based on the received measurement report, the base station can determine whether to initiate a cell handover process and hand over the UE to an appropriate neighboring cell.

[0042] The frequency (i.e., period) of SSB transmission has the following three effects:

[0043] (1) From the perspective of UE service quality, there are two aspects:

[0044] (1) Impact on the UE's initial cell search: the longer the SSB transmission period is, the longer it takes to complete the cell search;

[0045] (2) Since the UE needs to collect a certain number of measurement samples and determine the signal quality of the SSB of a cell through filtering, the transmission frequency of the SSB will affect the measurement delay of the UE for the cell and the adjacent cell.

[0046] (2) In terms of network capacity, there are two aspects of impact:

[0047] (1) The smaller the SSB transmission period, the more wireless resources SSB transmission occupies;

[0048] (2) The smaller the SSB transmission period, the greater the interference to the adjacent cell, which will reduce the capacity of the adjacent cell.

[0049] (3) From the perspective of network operations, there are two aspects of impact:

[0050] (1) The shorter the SSB transmission period, the more power the base station consumes;

[0051] (2) The greater the SSB transmission power, the more power it consumes. At the same time, the data symbols sent simultaneously with the SSB receive less transmission power.

[0052] 2G / 3G / 4G wireless cells use carrier frequencies below 6 GHz and are primarily used to provide terrestrial wireless signal coverage. In the 5G era, wireless signal coverage requirements will evolve to include more diverse requirements. In addition to ground coverage, ground base stations will also be required to provide mid- and low-altitude wireless signal coverage. When 3GPP began defining 5G, there was discussion about whether the concept of cellular cells should still be retained after adopting beam-based radio access technology. Ultimately, the concept of wireless cells was retained. As a typical example, beamforming based on planar antenna arrays still has an optimal radiation angle of less than 180 degrees. To provide 360-degree coverage at a site, it is best to use three planar antenna arrays, each providing slightly more than 120 degrees of coverage, achieving seamless 360-degree coverage. Each antenna panel can transmit multiple SSB beams to cover a 120-degree range.

[0053] With the emergence of new services, there is a growing demand for three-dimensional services, using ground base stations to serve traffic from the ground, urban high-rise buildings, and mid- and low-altitude aircraft. In addition to traditional horizontal beam scanning for ground coverage, aerial beam scanning is also required to provide high-rise and mid- and low-altitude coverage.

[0054] Furthermore, the concept of cells is constantly evolving. With the development of large-scale and distributed antennas, cell coverage is no longer limited to the coverage area of ​​a single antenna. The coverage area of ​​a cell depends on a combination of factors, including the number of antennas deployed, their orientation, transmit power, and frequency. Distributed antennas can expand cell coverage, change the shape of the cell's coverage area, and cover shadowed areas.

[0055] In the related art, the same cell uses several SSB beams as cell discovery signals, and the UE monitors the discovery signals to discover and access the cell. The transmission parameters of the SSB beams of the same cell are uniformly configured, that is, the transmission parameters of the SSB beams (including the transmission period and transmission power) are configured on a cell-by-cell basis. Therefore, the configuration flexibility is relatively poor. In addition, the scanning transmission of SSB in the related art does not take into account the differences in service distribution in different areas or spaces of the cell. The SSB beams sent for spaces or directions with sparse services and directions with dense services have the same transmission period and transmission power, which increases the energy consumption cost of the network to provide coverage for spaces and directions with sparse services, and at the same time brings pilot interference to neighboring cells. If differentiated cell discovery signals are provided for different sub-areas or sub-spaces of the same area according to the current NR technology, multiple different cells are required to jointly cover this area. When the UE moves between these different sub-areas, it is necessary to perform neighboring cell measurements and execute the switching process, resulting in service interruption.

[0056] For example, the same cell provides both ground coverage and medium and low altitude coverage. The business types and loads within the ground coverage area are different from the business types and loads within the medium and low altitude areas. The ground coverage of the same cell provides both hotspot coverage and wide area coverage. There is a large difference between the business density of the hotspot area and the business density of other areas within the wide area coverage. If these areas use the same sending parameter configuration to send cell discovery signals, it may cause the network to increase the energy consumption cost of providing coverage for spaces and directions with sparse business, and at the same time bring pilot interference to neighboring cells.

[0057] In response to the above problems, the embodiment of the present application provides the concept of cell dimension. According to this embodiment, the coverage area of ​​the same cell can be divided into different sub-areas or sub-spaces according to the service distribution characteristics, space or region. Each sub-area or sub-space is called a dimension. The network side device can send cell discovery signals according to the discovery signal configuration parameters for each dimension. These parameters include but are not limited to the sending period, sending power, time-frequency resource template, etc. Each dimension includes at least one discovery signal beam. Therefore, the cell in the embodiment of the present application can also be called a multi-dimensional cell. The following are some examples of multi-dimensional cells in the embodiments of the present application.

[0058] Example 1: A three-dimensional multi-dimensional cell, as shown in Figure 2a, includes at least one ground coverage dimension and at least one mid- and low-altitude coverage dimension. The former provides ground coverage, while the latter provides mid- and low-altitude coverage. In the three-dimensional cell example shown in Figure 2a, there are three dimensions: Dimension 0 provides wireless signal coverage for pedestrians, vehicles, and ground-based devices requiring wireless connectivity; Dimension 1 provides wireless connectivity for residents on floors. Relay nodes can be installed on walls or windows to forward wireless signals between the base station and UEs; Dimension 2, covering higher altitudes, provides wireless connectivity for mid- and low-altitude aircraft. Network-side equipment can determine the transmission parameters for cell discovery signals in each dimension based on traffic distribution, coverage requirements, power consumption, and interference control objectives. For example, Dimension 1 provides indoor coverage. Indoor coverage has low mobile speeds, requiring strong cell discovery signal penetration. Therefore, a short-period, high-power discovery signal beam can be provided. Dimension 2 provides connectivity for aircraft. Based on the aircraft's flight speed, a short-period cell discovery signal can be provided to accelerate measurement and beam tracking. The appropriate transmit power is also determined based on the aircraft's altitude.

[0059] Example 2: A multi-dimensional cell on land and water, as shown in Figure 2b, the dimension on the left of the base station is used to provide ground coverage for a square, and the dimension on the right is used to provide basic coverage for the lake. The dimension on the left needs to be able to provide connection services for densely populated people, while the dimension on the right only needs to provide basic coverage to facilitate boating tourists on the lake to access the network. Since the area on the right is larger and the services are sparse, in order to save costs, the network-side equipment provides a long-period high-power cell discovery signal transmission for the right dimension to cover the vast lake surface. For the dimension on the left, the network-side equipment can provide a shorter-period cell discovery signal transmission, so that the UE's cell measurement and beam tracking performance are better, improving the experience of densely populated people.

[0060] Example 3: A heterogeneous multi-dimensional cell, as shown in Figure 2c, includes at least one dimension providing macro coverage (Macro Dimension) and at least one dimension providing micro coverage (Spot Dimension). In the heterogeneous multi-dimensional cell example provided in Figure 2c, there are three dimensions providing micro coverage. For each dimension, the network-side device determines the cell discovery signal transmission parameters based on the corresponding coverage area, service distribution, and load. For the micro-coverage dimension with dense traffic, the cell discovery signal parameters are determined based on the service characteristics of the area. For example, the micro-coverage dimension at a highway intersection provides a short-period cell discovery signal to improve beam tracking and provide fast neighboring cell measurements for passing vehicles, accelerating cell handover. The micro-coverage dimension, used to cover sparse traffic in shadow areas, uses a lower cell discovery signal frequency to conserve base station energy consumption and reduce interference caused by cell discovery signal transmission while providing necessary coverage. The macro-coverage dimension can determine the cell discovery signal transmission period based on the typical service distribution within the coverage area. In addition, the macro-coverage dimension and the micro-coverage dimension can determine the cell discovery signal power separately based on the size of their respective coverage areas.

[0061] Below, in combination with the accompanying drawings, the acquisition scheme of the cell dimension configuration information provided by the embodiment of the present application is described in detail through some embodiments and their application scenarios.

[0062] FIG3 shows a flow chart of a method for obtaining cell dimension configuration information in an embodiment of the present application. The method 300 can be executed by a terminal. In other words, the method can be executed by software or hardware installed on the terminal. As shown in FIG3 , the method may include the following steps.

[0063] S310: The terminal receives a first cell discovery signal.

[0064] In an exemplary implementation, the terminal may first receive a first cell discovery signal. For example, the terminal may receive the first cell discovery signal by scanning a beam.

[0065] S312: The terminal obtains configuration information of a first dimension in which the terminal is located based on the received first cell discovery signal.

[0066] In this embodiment of the present application, the first dimension is a dimension of the target cell, and the target cell includes at least one dimension, and any one of the at least one dimension corresponds to at least one of the following 1) to 5):

[0067] 1) At least one sub-area of ​​the target cell.

[0068] In this implementation, the coverage area of ​​the target cell may be divided into multiple sub-areas, wherein at least one sub-area is a dimension of the target cell. For example, the ground area covered by the target cell may be divided into multiple sub-areas.

[0069] For example, the dimensions of the square cover and the dimensions of the lake cover in Figure 2b.

[0070] 2) At least one subspace of the target cell.

[0071] In this implementation, the coverage space of the target cell can be divided into multiple subspaces, where at least one subspace is a dimension of the target cell. For example, the coverage space of the target cell can be divided into three subspaces: ground, low-altitude, and mid-altitude, each of which is a dimension of the target cell.

[0072] For example, the ground coverage dimension, the middle spatial coverage dimension, and the upper spatial coverage dimension in Figure 2a.

[0073] 3) At least one sub-cell of the target cell.

[0074] In this implementation, the coverage of the target cell may be divided into multiple sub-cells, wherein at least one sub-cell is a dimension of the target cell.

[0075] For example, the micro-coverage dimension in Figure 2c.

[0076] 4) The coverage of at least some of the multiple beams of the target cell.

[0077] Each wireless cell of NR can be provided with a cell discovery signal by a group of SSB beams. This group of SSB beams is transmitted according to a set period (for example, 20ms) and power. Each SSB beam provides coverage in one direction. Adjacent SSB beams have partial cross-coverage to provide seamless coverage. Therefore, in this implementation, the coverage range of at least some of the multiple beams of the target cell is used as a dimension of the target cell. For example, in Figure 2a, some beams radiating toward the ground are divided into a group corresponding to the ground coverage dimension, some beams radiating toward the intermediate space are divided into a group corresponding to the intermediate space coverage dimension, and some beams radiating upward are divided into a group corresponding to the higher space coverage dimension.

[0078] 5) A beam set, where the beam set includes coverage of at least part of the multiple beams of the target cell.

[0079] In this implementation method, the multiple beams of the target cell can be divided into multiple beam sets, and the range covered by each beam set is a dimension of the target cell. For example, in Figure 2a, the part of the beams radiated to the ground is a beam set, corresponding to the ground coverage dimension, the part of the beams radiated to the middle space is a beam set, corresponding to the middle space coverage dimension, and the part of the beams radiated upward is a beam set, corresponding to the higher space coverage dimension.

[0080] In an embodiment of the present application, the configuration information of the first dimension may include at least one of the following: an identifier of the first dimension, a parameter for calculating the dimension identifier of the first dimension, a list of dimensions included in the target cell, the number of dimensions included in the target cell, location information of the coverage area or coverage space of the first dimension, and height information of the coverage space of the first dimension. Through the configuration information of the first dimension, the terminal can obtain relevant information of the first dimension and perform corresponding operations according to the relevant information of the first dimension in subsequent processes.

[0081] In an embodiment of the present application, the terminal can obtain the configuration information of the first dimension in which the terminal is located based on the received first cell discovery signal. The first dimension is a dimension of the target cell, and the target cell includes at least one dimension, and one dimension corresponds to at least one of the above five items. In application, the coverage area of ​​the same cell can be divided into different sub-areas or subspaces according to at least one of the service distribution characteristics, space or region, etc. Each sub-area or subspace can be called a dimension, wherein each dimension includes at least one discovery signal beam, that is, at least one discovery signal beam is used in each dimension to send a cell discovery signal.

[0082] Through the technical solution provided in the embodiment of the present application, the terminal can receive a first cell discovery signal; then, based on the received first cell discovery signal, obtain configuration information of the first dimension in which the terminal is located, wherein the target cell includes at least one dimension. In the embodiment of the present application, a target cell includes multiple dimensions, and the network-side device sends a cell discovery signal corresponding to each dimension in each dimension. The terminal can identify the dimension identifier of the first dimension in which the terminal is located based on the received target cell signal, so that the cell discovery signal of the first dimension can match the requirements of the first dimension and meet the differentiated requirements of different areas or spaces in the same cell.

[0083] In one implementation, the acquiring, by the terminal based on the received first cell discovery signal, configuration information of the first dimension in which the terminal is located may include one of the following:

[0084] (1) The terminal obtains the configuration information of the first dimension based on the information carried in the first cell discovery signal.

[0085] For example, the network-side device may carry explicit configuration information in the first cell discovery signal, where the configuration information is used to indicate the configuration of the first dimension to which the discovery signal beam belongs, such as a dimension identifier.

[0086] Alternatively, the network-side device may carry parameters for determining the configuration information of the first dimension in the first cell discovery signal, and the terminal may obtain the configuration information of the first dimension based on these parameters.

[0087] For example, multiple configuration information may be agreed upon in advance, and the network side device may carry an indication identifier of one of the configuration information in the first cell discovery signal of the first dimension, and the terminal obtains the configuration information of the first dimension according to the indication identifier.

[0088] (2) The terminal obtains the configuration information of the first dimension based on a target synchronization signal sequence included in the first cell discovery signal, wherein the target synchronization signal sequence includes one of the following: a primary synchronization signal sequence and a secondary synchronization signal sequence.

[0089] In this implementation, the configuration information of the first dimension can be obtained through the target synchronization signal sequence in the first cell discovery signal. For example, the target synchronization signal sequences in cell discovery signals of different dimensions can be derived from different root sequences or different branches of the same root sequence, and the configuration information can be obtained by deriving the root sequence or branch of the root sequence of the target synchronization signal sequence. For example, the protocol predefines that one root sequence or one branch of a root sequence corresponds to one configuration information.

[0090] (3) The terminal obtains the dimension identifier of the first dimension based on the target frequency grid used by the first cell discovery signal.

[0091] In this implementation, the configuration information of the first dimension can be obtained by the target frequency grid used by the first cell discovery signal. For example, cell discovery signals of different dimensions use different frequency grids, and the configuration information of the first dimension can be determined by the target frequency grid used by the first cell discovery signal. For example, the protocol predetermines that one grid configuration corresponds to one configuration information.

[0092] In an optional implementation, the terminal acquiring the configuration information of the first dimension based on the information carried in the first cell discovery signal may include one of the following:

[0093] (1) The terminal obtains the configuration information of the first dimension carried in the first cell discovery signal. When the received first cell discovery signal carries the configuration information of the first dimension, that is, the first cell discovery signal carries explicit configuration information, the identifier is used to indicate the relevant configuration information of the discovery signal beam corresponding to the first cell discovery signal, and the configuration information of the first dimension can be directly obtained based on the configuration information of the first dimension carried in the first cell discovery signal.

[0094] (2) The terminal obtains a target parameter carried in the first cell discovery signal, and obtains configuration information of the first dimension based on the target parameter. Optionally, when the received first cell discovery signal carries the target parameter, the configuration information of the first dimension may be obtained through corresponding calculation based on the target parameter.

[0095] The configuration information of the first dimension may include a dimension identifier of the first dimension, and the target parameter may be implemented in the following ways:

[0096] In a first embodiment, the target parameter may include: a first indication information and a target beam number, wherein the first indication information is used to indicate the maximum number of discovery signal beams corresponding to one dimension of the target cell (also referred to as the maximum number of discovery signal beams), and the target beam number is used to indicate the beam number of the discovery signal beam corresponding to the first cell discovery signal within the target cell. In this embodiment, the terminal can calculate the dimension identifier of the first dimension through the first indication information and the target beam number carried in the first cell discovery signal, for example, the dimension identifier of the first dimension = rounded down (beam number / maximum number of discovery signal beams corresponding to one dimension).

[0097] In a second embodiment, the target parameter may include: a target beam number, wherein the target beam number is used to indicate the beam number of the discovery signal beam corresponding to the first cell discovery signal in the target cell.

[0098] In this embodiment, the maximum number of discovery signal beams that can be contained in one dimension can be predefined by the protocol. The protocol can define a list of the maximum number of discovery signal beams in one dimension. The network-side device indicates the maximum number of discovery signal beams corresponding to one dimension of the target cell in the first cell discovery signal. The UE can query the list of the maximum number of discovery signal beams according to the sequence number to determine the maximum number of discovery signal beams in each dimension (i.e., the maximum number of discovery signal beams mentioned above). The terminal can calculate the dimension identifier of the first dimension based on the target beam sequence number carried by the first cell discovery signal and the determined maximum number of discovery signal beams. For example, the dimension identifier of the first dimension = round down (beam sequence number / maximum number of discovery signal beams corresponding to one dimension).

[0099] In the above-mentioned first and second embodiments, for example, if the maximum number of discovery signal beams in each dimension is 8 and the cell has 3 dimensions, beams 0, 1 and 2 are in dimension 0, beams 8, 9, 10 and 11 are in dimension 1, and beams 16 and 17 are in dimension 2.

[0100] In a third embodiment, the target parameters may include: second indication information and a target beam sequence number, wherein the second indication information is used to indicate the number of dimensions of the target cell (i.e., the total number of dimensions included in the target cell), and the target beam sequence number is used to indicate the beam number of the discovery signal beam corresponding to the first cell discovery signal within the target cell.

[0101] In this embodiment, the terminal can calculate the dimension identifier of the first dimension based on the number of dimensions of the target cell carried in the first cell discovery signal and the target beam number. For example, the dimension identifier of the first dimension = beam number % total number of dimensions, where "%" represents the remainder operation.

[0102] In one embodiment, the terminal obtains the dimension identifier of the first dimension based on the target synchronization signal sequence included in the first cell discovery signal, which may include: the terminal obtains the configuration information of the first dimension according to the target root sequence, wherein the target root sequence is the root sequence corresponding to the target synchronization signal sequence included in the first cell discovery signal, and the root sequences corresponding to the target synchronization signal sequences included in the cell discovery signals corresponding to different dimensions of the target cell are different.

[0103] In this embodiment, the received first cell discovery signal includes a primary / secondary synchronization signal. The primary / secondary synchronization signals of the synchronization signal of the first cell discovery signal in one dimension are a set of sequences derived from the same root sequence. The root sequences of cell discovery signals in different dimensions are different. Therefore, the terminal can obtain configuration information for the first dimension based on the target root sequence corresponding to the target synchronization signal sequence. For example, the protocol can predefine configuration information corresponding to a root sequence. The terminal can obtain the configuration information corresponding to the root sequence based on the root sequence of the target synchronization sequence in the received first cell discovery signal.

[0104] In one embodiment, the terminal obtains the configuration information of the first dimension based on the target synchronization signal sequence included in the first cell discovery signal, which may include: the terminal obtains the configuration information of the first dimension according to the target branch sequence, wherein the target branch sequence is a branch of the root sequence corresponding to the target synchronization signal sequence included in the first cell discovery signal, and the target synchronization signal sequences used by the cell discovery signals corresponding to different dimensions of the target cell belong to different branches of the same root sequence.

[0105] In this embodiment, the primary / secondary synchronization signal of the synchronization signal of the first cell discovery signal of one dimension may be a group of sequences derived from different branches of the same root sequence, and the first cell discovery signals of different dimensions correspond to different branches. One branch of a root sequence corresponds to a dimension identifier, and the dimension identifier of the first dimension can be obtained based on the target branch sequence. For example, the protocol may predefine the configuration information corresponding to each branch of the same root sequence. The terminal may obtain the configuration information corresponding to the branch of the root sequence of the target synchronization sequence in the received first cell discovery signal.

[0106] In one embodiment, the terminal obtaining the configuration information of the first dimension based on the target frequency grid used by the first cell discovery signal may include: the terminal obtaining the configuration information of the first dimension corresponding to the target frequency grid according to the correspondence between the frequency grid and the configuration information. For example, the protocol may define the correspondence between the frequency grid in which the cell discovery signal is located and the configuration information. After receiving the first cell discovery signal, the terminal may determine the configuration information of the first dimension based on the correspondence between the frequency grid and the dimension identifier according to the target frequency grid used by the first cell discovery signal.

[0107] In the above embodiment, optionally, the protocol can define a basic frequency grid and several auxiliary frequency grids for sending discovery signals. Any cell must use its basic frequency grid to send discovery signals of one dimension. If the cell has other dimensions, the auxiliary frequency grid is used to send discovery signals of one dimension.

[0108] In one implementation, after the terminal obtains the configuration information of the first dimension in which the terminal is located based on the received first cell discovery signal, the method may further include: the terminal determines the space covered by the first dimension based on predetermined rules and the configuration information of the first dimension, wherein the configuration information of each dimension of the target cell is configured according to the predetermined rules.

[0109] For example, the network-side device can use dimension identifiers according to predetermined rules predefined by the protocol, which can facilitate the terminal to determine the space covered by the dimension it is in. For example, in the three-dimensional cell shown in Figure 2a, dimension 0 can be the ground coverage dimension, and the dimension numbers above the ground increase according to the dimension height; in the heterogeneous multi-dimensional cell shown in Figure 2b, dimension 0 is the macro coverage dimension, and other larger dimension identifiers can be other micro coverage or skin coverage dimensions. In the multi-dimensional cell containing multiple parallel dimensions as shown in Figure 2c, dimension identifier 0 can be the dimension with the largest coverage or the most services, and the larger dimension identifiers can be other dimensions.

[0110] After obtaining the dimension identifier of the first dimension in which the terminal is located based on the received first cell discovery signal, the terminal can determine the space covered by the first dimension according to a predetermined rule and the dimension identifier of the first dimension.

[0111] In the above implementation, optionally, in order for the UE to determine the space covered by the dimension it is in based on the dimension identifier, the UE does not expect a dimensional cell to skip dimension identifiers with smaller values ​​and use larger dimension identifiers. For example, in the three-dimensional cell shown in Figure 2a above, dimension 0 is the ground coverage dimension, dimension 1 is the low-altitude coverage dimension, and dimension 2 is the mid-altitude coverage dimension. When the terminal determines that the dimension identifier of the first dimension it is currently in is dimension 0, it can determine the range of ground coverage. In order for the terminal to accurately determine the space it is currently in, the terminal does not expect the network side to skip dimension identifiers with smaller values, for example, to start identifying directly from dimension 1. In this way, the terminal cannot determine whether there is a dimension 0, and thus cannot determine the current space it is in.

[0112] In one implementation, the first cell discovery signal is used to indicate the configuration information of the first dimension, wherein the configuration information may include at least one of the following: an identifier of the first dimension, a parameter for calculating the dimension identifier of the first dimension, a list of dimensions included in the target cell, the number of dimensions included in the target cell, location information of the coverage area or coverage space of the first dimension, and height information of the coverage space of the first dimension. The first cell discovery signal received by the terminal may be used to indicate the dimension information of the target cell, for example, a list of dimensions included in the target cell, the number of dimensions included in the target cell, and may indicate one or more thereof. For example, the first cell discovery signal may indicate the configuration information of the first dimension using one or more of the above implementations.

[0113] In one implementation, the method may further include the following steps:

[0114] In step 1, the terminal performs measurement of the target cell and neighboring cells of the target cell based on a measurement configuration sent by a network-side device, wherein the measurement configuration includes measurement parameters configured for at least one dimension of the target cell.

[0115] In this implementation, the measurement configuration sent by the network device to the terminal may include measurement parameters for various dimensions of the target cell, where the measurement parameters may include at least one of a measurement start time, a measurement window duration, and a measurement window period. The terminal may measure the target cell and neighboring cells of the target cell based on the measurement configuration including the measurement parameters sent by the network device. For example, the terminal may measure cell discovery signals in various dimensions of the target cell.

[0116] Step 2: The terminal sends a measurement report to the network side device based on the measurement result, wherein the measurement report includes at least one of the following: a cell identifier, a dimension identifier, a beam identifier, and a discovery signal strength.

[0117] After the terminal measures the target cell and the neighboring cells of the target cell according to the measurement configuration including the above content sent by the network side device, it can send a measurement report including the cell identifier, dimension identifier, beam identifier, and found signal strength to the network side device based on the measurement results.

[0118] In an optional implementation, before the terminal performs measurement of the target cell and the neighboring cells of the target cell based on the measurement configuration sent by the network-side device, the method may further include: the terminal obtaining a neighboring cell list broadcast by the network-side device, wherein the neighboring cell list indicates dimension configuration information of at least one neighboring cell. In this implementation, when performing measurement of the target cell and the neighboring cells of the target cell, the terminal may measure various dimensions of the neighboring cells based on the dimension configuration information of the neighboring cells, for example, measuring cell discovery signals of various dimensions of the neighboring cells.

[0119] Optionally, if there is a neighboring cell in the acquired neighboring cell list broadcast by the network-side device but without dimension configuration information, the terminal may default that the neighboring cell is a one-dimensional cell.

[0120] Optionally, the measurement configuration may further include a measurement event, and the measurement event is used to instruct the terminal to measure the discovery signal strength between different dimensions of the target cell. In addition to the measurement parameters, the measurement configuration sent by the network side device obtained by the terminal may also include a measurement event, and the measurement event can be used to instruct the terminal to measure the change in the discovery signal strength between different dimensions of the target cell. For example, when the discovery beam x of dimension 1 of the current serving cell becomes a dB stronger than the beam y of dimension 0 (current serving beam) by a dB (a can be 0, a positive number or a negative number), the terminal can be triggered to send a measurement report to the network side device based on the measurement result.

[0121] In one implementation, one dimension includes at least one discovery signal beam, and the at least one discovery signal beam satisfies at least one of the following:

[0122] (1) Same transmission period. All discovery signal beams in the same dimension use the same transmission period, which enables network-side devices to use the same measurement period when performing discovery signal measurement configuration within the dimension.

[0123] (2) Same transmit power: All discovery signal beams in the same dimension use the same transmit power and have the same coverage, which allows the terminal to receive discovery signal beams in the same dimension and avoid interference.

[0124] (3) The same frequency grid. The protocol can define a correspondence between the frequency grid of the cell discovery signal and the dimension number. After receiving the cell discovery signal, the terminal can determine the dimension identifier of the first dimension based on the target frequency grid used by the first cell discovery signal and the correspondence between the frequency grid and the dimension identifier. Therefore, all discovery signal beams of the same dimension use the same frequency grid, avoiding the inability to accurately determine the dimension identifier of the first dimension.

[0125] (4) The target synchronization signal sequences used correspond to the same root sequence. The primary and secondary synchronization signals of the target synchronization signal of the first cell discovery signal in the same dimension are a set of sequences derived from the same root sequence. The root sequences of cell discovery signals in different dimensions are different. Therefore, the target synchronization signal sequences used by all discovery signal beams in the same dimension correspond to the same root sequence.

[0126] (5) The target synchronization signal sequence used corresponds to the same branch sequence of the same root sequence. The primary / secondary synchronization signals of the target synchronization signal of the first cell discovery signal of the same dimension are a set of sequences derived from different branches of the same root sequence. First cell discovery signals of different dimensions correspond to different branches. Therefore, the target synchronization signal sequence used by all discovery signal beams of the same dimension corresponds to the same branch sequence of the same root sequence.

[0127] In the above implementation, when the network side device sends a cell discovery signal, for multiple cell discovery signal beams in the same dimension, the network side device can use the same parameters to send the first cell discovery signal.

[0128] In an embodiment of the present application, when the terminal detects a cell discovery signal beam, if multiple cell discovery signal beams are detected, the dimension in which to reside can be selected based on the strongest discovery signal beam. That is, the above-mentioned first cell discovery signal can be the cell discovery signal with the strongest signal strength among the multiple cell discovery signals detected by the terminal. When the UE measures that the strength of the cell discovery signal in the dimension in which it currently resides is lower than the first threshold, it can measure other dimensions of the same cell. If the signal strength of at least one discovery signal beam in the second dimension of the same cell is measured to be higher than the second threshold, it resides in the second dimension.

[0129] In one implementation, the method may further include: the terminal receives a first system message, wherein the first system message carries at least part of the transmission parameters of the cell discovery signal of the first dimension. In this implementation, the network side device may broadcast a first system message of the first dimension, and the first system message may carry at least part of the transmission parameters of the cell discovery signal of the first dimension. For example, when the terminal receives the above-mentioned first cell discovery signal for the first time, the first cell discovery signal may be parsed according to at least part of the transmission parameters carried in the first system message, and when the first cell discovery signal of the first dimension is subsequently received, the first cell discovery signal may be received according to the at least part of the transmission parameters, for example, the first cell discovery signal may be received according to the transmission period and transmission power in at least part of the transmission parameters.

[0130] In the above implementation, optionally, at least part of the transmission parameters of the cell discovery signal in the first dimension include at least one of the following:

[0131] Sending cycle;

[0132] Transmit power;

[0133] frequency grid;

[0134] The root sequence used;

[0135] The branch sequence of the root sequence used.

[0136] In actual applications, the terminal may move between various dimensions of the cell. The terminal may move from the coverage of the first dimension of the target cell to the coverage of the second dimension of the target cell. Therefore, in one implementation, the method may further include the following steps:

[0137] Step 1: After moving from the first dimension to the second dimension of the target cell, the terminal receives a second cell discovery signal or a second system message of the second dimension, wherein the second system message carries at least part of the transmission parameters of the cell discovery signal of the second dimension;

[0138] Step 2: Determine configuration information of the discovery signal of the second dimension based on the second discovery signal and the second system message.

[0139] Through the above implementation, after moving to the second dimension of the target cell, the terminal can determine the configuration information of the second dimension, and then perform subsequent operations according to the configuration information of the second dimension, such as accessing the second dimension.

[0140] Through the technical solution provided in the embodiment of the present application, the terminal can receive the first cell discovery signal and then obtain the configuration information of the first dimension in which the terminal is located. Therefore, the terminal located in the multi-dimensional cell can not only obtain differentiated cell dimension configurations and thus obtain excellent network access performance, but also reduce the increase in energy consumption costs, while avoiding the heterodyne interference brought to the neighboring cells, and avoiding the problem of service interruption caused by the frequent switching process caused by the use of multiple cells for coverage in multiple areas, thus balancing the comprehensive needs of cell coverage requirements, cell capacity and network operation energy consumption.

[0141] FIG4 illustrates a flow chart of a method for transmitting a cell discovery signal according to an embodiment of the present application. Method 400 may be executed by a network-side device. In other words, the method may be executed by software or hardware installed on the network-side device. As shown in FIG4 , the method may include the following steps.

[0142] S410: The network-side device determines at least one dimension included in the target cell.

[0143] In the embodiment of the present application, one of the at least one dimension corresponds to at least one of the following:

[0144] at least one sub-area of ​​the target cell;

[0145] at least one subspace of the target cell;

[0146] at least one sub-cell of the target cell;

[0147] the coverage of at least some of the multiple beams of the target cell;

[0148] A beam set includes coverage of at least part of the multiple beams of the target cell.

[0149] Among them, the dimensions in the embodiment of the present application are the same as the dimensions in method 300. For details, please refer to the relevant description in method 300 and will not be repeated here.

[0150] S412: The network-side device sends the cell discovery signal of each dimension respectively according to the discovery signal configuration parameters corresponding to each dimension.

[0151] In an embodiment of the present application, the network side device can configure discovery signal configuration parameters of different dimensions respectively.

[0152] In one implementation, the network-side device may indicate the configuration information of the dimension corresponding to the cell discovery signal to the terminal through one of the following:

[0153] (1) Information carried in the cell discovery signal. The network-side device may carry explicit configuration information in the cell discovery signal, where the identifier is used to indicate the configuration information of the cell dimension to which the cell discovery signal belongs, and may also carry parameters for determining the configuration information of the dimension corresponding to the cell discovery signal. For example, when the dimension configuration information includes a dimension identifier, the beam number of the discovery signal beam corresponding to the cell discovery signal in the target cell, the maximum number of discovery signal beams corresponding to one dimension, the number of dimensions of the target cell, etc. For details, please refer to the relevant description in the above method 300.

[0154] (2) The cell discovery signal includes a target synchronization signal sequence, wherein the target synchronization signal sequence includes one of the following: a primary synchronization signal sequence and a secondary synchronization signal sequence. The primary / secondary synchronization signals of the target synchronization signal of the cell discovery signal of one dimension are a group of sequences derived from the same root sequence, and the root sequences of the cell discovery signals of different dimensions are different. The network-side device can indicate the configuration information of the dimension corresponding to the cell discovery signal through the target synchronization signal sequence included in the cell discovery signal.

[0155] (3) The frequency grid used by the cell discovery signal. The protocol may define a correspondence between the frequency grid used by the cell discovery signal and the dimension sequence number. The network-side device may indicate the configuration information of the dimension corresponding to the cell discovery signal through the frequency grid used by the cell discovery signal.

[0156] In an optional implementation, after the network side device determines at least one dimension included in the target cell, the method may further include: the network side device configures the dimension identifiers of each dimension according to a predetermined rule. The network side device can configure the dimension identifiers of each dimension of the target cell according to the predetermined rules predefined by the protocol. For example, for the three-dimensional cell shown in Figure 2a, the ground coverage dimension can be configured as dimension 0, and the dimension numbers above the ground increase according to the dimension height; for the heterogeneous multi-dimensional cell shown in Figure 2b, the macro coverage dimension can be configured as dimension 0, and other micro-coverage or pico-coverage dimensions use larger dimension identifiers. For the multi-dimensional cell shown in Figure 2c that includes multiple horizontal dimensions, the network side device can let the dimension with the largest coverage or the most services use dimension identifier 0, and other dimensions use larger dimension identifiers.

[0157] Optionally, after the network-side device determines at least one dimension included in the target cell, it can send a cell discovery signal beam for each dimension according to the discovery signal configuration parameters corresponding to each dimension. In an embodiment of the present application, the discovery signal configuration parameters configured for each dimension may be the same or different, depending on the implementation of the network-side device.

[0158] In one implementation, the discovery signal configuration parameter includes a transmission parameter for sending the cell discovery signal of the dimension, and the transmission parameter may include one of the following:

[0159] Transmission period, used to indicate the transmission period of the cell synchronization signal;

[0160] Transmit power, used to indicate the transmit power of the cell synchronization signal;

[0161] Frequency grid configuration, used to indicate the frequency grid of the cell discovery signal beam;

[0162] The root sequence of the synchronization signal sequence is used to indicate the root sequence of the target synchronization sequence in the cell discovery signal;

[0163] The branch sequence of the root sequence of the synchronization signal sequence is used to indicate the branch of the root sequence of the target synchronization sequence in the cell discovery signal.

[0164] In the above implementation method, when the network side device configures the transmission parameters used for cell discovery signals of different dimensions, it can be configured according to one of the above five parameters, and it can be configured according to local conditions and actual conditions, and appropriate transmission parameters such as transmission period and transmission power can be selected.

[0165] For example, when configuring the transmission parameter sets used for cell discovery signals in different dimensions of a three-dimensional multi-dimensional cell as shown in Figure 2a, the network-side equipment can arrange the transmission parameters of the cell discovery signals in each dimension based on the service distribution, coverage requirements, power consumption, and interference control objectives of each dimension. For example, dimension 1 provides indoor coverage, which has low mobility and requires the cell discovery signal to have strong penetration capabilities. It can provide a discovery signal beam with a low transmission period and high transmission power. Dimension 2 is used to provide connectivity for aircraft. Based on the aircraft's flight speed, it can provide a cell discovery signal with a short transmission period to speed up measurement and beam tracking. At the same time, the appropriate transmission power is determined based on the aircraft's altitude.

[0166] When configuring the transmission parameter set for the multi-dimensional water and land cell shown in Figure 2b, the square dimension on the left needs to be able to provide connectivity services for dense crowds, while the lake dimension on the right needs to provide basic coverage to facilitate network access for boating tourists on the lake. Because the area on the right is larger and less traffic-intensive, to save costs, the network-side equipment can provide cell discovery signal transmission with a long transmission period and high transmit power for the right dimension to cover the vast lake area. For the left dimension, the network-side equipment can provide cell discovery signal transmission with a shorter transmission period, enabling better cell measurement and beam tracking performance for terminals, improving the experience for dense crowds.

[0167] For heterogeneous multi-dimensional cells as shown in Figure 2c, network-side equipment can determine the cell discovery signal transmission parameters for each dimension based on the corresponding coverage area, service distribution, and load. For the densely populated micro-coverage dimension, the cell discovery signal parameters are determined based on the service characteristics of the area. For example, the micro-coverage dimension at a highway intersection provides a cell discovery signal with a short transmission period to improve beam tracking and provide fast neighboring cell measurements for passing vehicles, accelerating cell handover. The micro-coverage dimension used to cover sparse services in shadow areas uses a lower cell discovery signal to save base station energy consumption and reduce interference caused by cell discovery signal transmission while providing necessary coverage. The macro-coverage dimension can determine the cell discovery signal transmission period based on the typical service distribution within the coverage area. In addition, the macro-coverage dimension and the micro-coverage dimension can determine the cell discovery signal transmission power based on the size of their respective coverage areas.

[0168] In one implementation, the network-side device sending the cell discovery signal for each dimension according to the transmission parameter set corresponding to each dimension may include: the network-side device sending at least one cell discovery signal beam for each dimension according to the transmission parameter set corresponding to each dimension. The network-side device may send at least one cell discovery signal beam for each dimension according to the transmission parameter set corresponding to each dimension configured in advance (e.g., transmission period, transmission power).

[0169] In an optional implementation, the at least one cell discovery signal beam of the same dimension satisfies at least one of the following:

[0170] (1) Same transmission period. At least one cell discovery signal beam in the same dimension uses the same transmission period, which enables the network-side device to use the same measurement period when performing intra-dimensional cell discovery signal measurement configuration.

[0171] (2) Same transmit power. At least one cell discovery signal beam in the same dimension uses the same transmit power. The transmit power in different dimensions can be separately indicated by the cell in the system message. The same transmit power indicates that the coverage of at least one cell discovery signal beam is the same.

[0172] (3) Same frequency grid. The protocol can define a correspondence between the frequency grid of the cell discovery signal and the dimension number. After receiving the cell discovery signal, the terminal can determine the dimension identifier of the dimension. Therefore, cell discovery signals in the same dimension use the same frequency grid, avoiding the terminal being unable to accurately determine the dimension identifier.

[0173] (4) The target synchronization signal sequences used correspond to the same root sequence. The primary and secondary synchronization signals of the synchronization signal sequences of the cell discovery signals of the same dimension can be a set of sequences derived from the same root sequence. The root sequences of cell discovery signals of different dimensions are different. Therefore, the synchronization signal sequences used by all cell discovery signals of the same dimension need to correspond to the same root sequence.

[0174] (5) The target synchronization signal sequence used corresponds to the same branch sequence of the same root sequence. The primary / secondary synchronization signals of the synchronization signals of the cell discovery signals of the same dimension can be a set of sequences derived from different branches of the same root sequence. The first cell discovery signals of different dimensions correspond to different branches. Therefore, the synchronization signal sequence used by the cell discovery signals of the same dimension corresponds to the same branch sequence of the same root sequence.

[0175] In an optional implementation, the cell discovery signal can be used to indicate the configuration information of the dimension, wherein the configuration information of the dimension includes at least one of the following: an identifier of the dimension, a parameter for calculating the dimension identifier of the dimension, a list of dimensions included in the target cell, the number of dimensions included in the target cell, location information of the area or space covered by the dimension, and height information of the space covered by the dimension. The cell discovery signal beam sent by the network-side device for each of the dimensions can be used to indicate the configuration information of the dimension of the target cell. The configuration information of the dimension can be a list of dimensions included in the target cell, the number of dimensions included in the target cell, or the above information at the same time. This embodiment does not make specific requirements.

[0176] In an optional implementation, the method may further include: the network-side device sending a measurement configuration to the terminal, wherein the measurement configuration includes measurement parameters configured for at least one dimension of the target cell. When the network-side device configures the terminal to perform measurement, it may configure measurement parameters for each dimension of the target cell, including a measurement start time, a measurement window duration, and a measurement window period.

[0177] In an optional implementation, the method may further include: the network-side device broadcasting a neighboring cell list, wherein the neighboring cell list indicates dimension configuration information of at least one neighboring cell. The network-side device may broadcast the neighboring cell list and indicate the dimension configuration information of at least one neighboring cell in the neighboring cell list, so that the terminal can perform measurements of the target cell and the neighboring cells of the target cell. If the neighboring cell list broadcast by the network-side device does not indicate the dimension configuration information of one of the neighboring cells, the neighboring cell is assumed to be a one-dimensional cell.

[0178] In an optional implementation, the measurement configuration may further include a measurement event, and the measurement event is used to instruct the terminal to measure the discovery signal strength between different dimensions of the target cell. The network side device may include a measurement event in the measurement configuration sent to the terminal, which is used to measure the discovery signal strength between different dimensions of the current serving cell. For example, when the discovery beam x of dimension 1 of the current serving cell becomes a dB stronger than the beam y of dimension 0 (current serving beam) by a dB (a can be 0, a positive number or a negative number), the terminal may be triggered to make a measurement report to the network side device.

[0179] In one implementation, the method may further include: the network-side device sending a system message corresponding to the dimension, wherein the system message carries at least part of the transmission parameters of the cell discovery signal of the dimension. In this implementation, the network-side device may send a system message corresponding to each dimension of the target cell, indicating at least part of the transmission parameters of the cell discovery signal of the dimension through the system message, so that the terminal can receive the cell discovery signal of the dimension according to the at least part of the transmission parameters.

[0180] In the method for sending a cell discovery signal provided in an embodiment of the present application, the network-side device can determine at least one dimension included in the target cell; and then send the cell discovery signal of each dimension respectively according to the transmission parameter set corresponding to each dimension configured respectively. Through multi-dimensional cells, differentiated discovery signal coverage is provided in different dimensions. On the premise of matching the service characteristics and coverage area size and shape of different areas, the cell measurement performance of some areas is optimized, the transmission energy consumption and interference of the discovery signal in some areas are reduced, and at the same time, the frequent switching process caused by using multiple cells to cover multiple areas is avoided.

[0181] The method for obtaining cell dimension configuration information provided in the embodiment of the present application can be executed by a device for obtaining cell dimension configuration information. In the embodiment of the present application, the device for obtaining cell dimension configuration information executing the method for obtaining cell dimension configuration information is taken as an example to illustrate the device for obtaining cell dimension configuration information provided in the embodiment of the present application.

[0182] Figure 5 shows a structural diagram of a device for obtaining cell dimension configuration information provided by an exemplary embodiment of the present application. The device can implement all or part of the contents of the embodiment shown in Figure 3. As shown in Figure 5, the device 500 for obtaining cell dimension configuration information includes: a first transmission module 501 and an acquisition module 502.

[0183] In the embodiment of the present application, the first transmission module 501 is configured to receive a first cell discovery signal; the acquisition module 502 is configured to acquire configuration information of a first dimension in which the terminal is located based on the received first cell discovery signal;

[0184] The first dimension is a dimension of the target cell, and the target cell includes at least one dimension, and one dimension of the at least one dimension corresponds to at least one of the following:

[0185] at least one sub-area of ​​the target cell;

[0186] at least one subspace of the target cell;

[0187] at least one sub-cell of the target cell;

[0188] the coverage of at least some of the multiple beams of the target cell;

[0189] A beam set includes coverage of at least part of the multiple beams of the target cell.

[0190] In an optional implementation, the acquiring module 502 acquires, based on the received first cell discovery signal, configuration information of the first dimension corresponding to the first cell discovery signal, including one of the following:

[0191] Acquire configuration information of the first dimension based on information carried in the first cell discovery signal;

[0192] Acquire configuration information of the first dimension based on a target synchronization signal sequence included in the first cell discovery signal, wherein the target synchronization signal sequence includes one of the following: a primary synchronization signal sequence and a secondary synchronization signal sequence;

[0193] Configuration information of the first dimension is acquired based on a target frequency grid used by the first cell discovery signal.

[0194] In an optional implementation, the acquiring, based on the information carried in the first cell discovery signal, the configuration information of the first dimension includes one of the following:

[0195] Obtaining configuration information of the first dimension carried in the first cell discovery signal;

[0196] Obtain a target parameter carried in the first cell discovery signal, and obtain configuration information of the first dimension according to the target parameter.

[0197] In an optional implementation, the configuration information of the first dimension includes: a dimension identifier of the first dimension; and the target parameter includes one of the following:

[0198] First indication information and a target beam sequence number, wherein the first indication information is used to indicate the maximum number of discovery signal beams corresponding to one dimension of the target cell, and the target beam sequence number is used to indicate the beam sequence number of the discovery signal beam corresponding to the first cell discovery signal in the target cell;

[0199] A target beam sequence number, wherein the target beam sequence number is used to indicate the beam sequence number of the discovery signal beam corresponding to the first cell discovery signal in the target cell;

[0200] Second indication information and a target beam sequence number, wherein the second indication information is used to indicate the number of dimensions of the target cell, and the target beam sequence number is used to indicate the beam sequence number of the discovery signal beam corresponding to the first cell discovery signal within the target cell.

[0201] In an optional implementation, the configuration information of the first dimension includes: a dimension identifier of the first dimension; and obtaining the dimension identifier of the first dimension based on the target synchronization signal sequence included in the first cell discovery signal includes one of the following:

[0202] Obtaining a dimension identifier of the first dimension according to a target root sequence, wherein the target root sequence is a root sequence corresponding to a target synchronization signal sequence included in the first cell discovery signal, and the root sequences corresponding to the target synchronization signal sequences included in the cell discovery signals corresponding to different dimensions of the target cell are different;

[0203] According to the target branch sequence, the dimension identifier of the first dimension is obtained, wherein the target branch sequence is a branch of the root sequence corresponding to the target synchronization signal sequence included in the first cell discovery signal, and the target synchronization signal sequences used by the cell discovery signals corresponding to different dimensions of the target cell belong to different branches of the same root sequence.

[0204] In one implementation, the acquiring, based on a target frequency grid used by the first cell discovery signal, configuration information of the first dimension includes:

[0205] According to the correspondence between the frequency grid and the dimension identifier, configuration information of the first dimension corresponding to the target frequency grid is acquired.

[0206] In an optional implementation, the acquisition module 502 is further used to determine the space covered by the first dimension based on a predetermined rule and a dimension identifier of the first dimension, wherein the dimension identifiers of each dimension of the target cell are configured according to the predetermined rule.

[0207] In an optional implementation, the first cell discovery signal is used to indicate configuration information of the first dimension, wherein the configuration information includes at least one of the following: an identifier of the first dimension, a parameter for calculating the dimension identifier of the first dimension, a list of dimensions included in the target cell, the number of dimensions included in the target cell, location information of the coverage area or coverage space of the first dimension, and height information of the coverage space of the first dimension.

[0208] In an optional implementation, as shown in FIG5 , the apparatus may further include a measuring module 503 configured to:

[0209] Performing measurement of the target cell and neighboring cells of the target cell based on a measurement configuration sent by a network-side device, wherein the measurement configuration includes measurement parameters configured for at least one dimension of the target cell;

[0210] Based on the measurement result, a measurement report is sent to the network side device, wherein the measurement report includes at least one of the following: a cell identifier, a dimension identifier, a beam identifier, and a discovery signal strength.

[0211] In an optional implementation, the acquisition module 502 is further configured to acquire a neighbor cell list broadcast by the network-side device, wherein the neighbor cell list indicates dimension configuration information of at least one neighbor cell.

[0212] In an optional implementation manner, the measurement configuration further includes a measurement event, and the measurement event is used to instruct the terminal to measure the discovery signal strength between different dimensions of the target cell.

[0213] In an optional implementation, one of the dimensions includes at least one discovery signal beam, and the at least one discovery signal beam satisfies at least one of the following:

[0214] Same sending cycle;

[0215] Same transmit power;

[0216] Same frequency grid;

[0217] The target synchronization signal sequence used corresponds to the same root sequence;

[0218] The target synchronization signal sequence used corresponds to the same branch sequence of the same root sequence.

[0219] In an optional implementation, the first transmission module 501 is further configured to receive a first system message, wherein the first system message carries at least part of the transmission parameters of the cell discovery signal of the first dimension.

[0220] In an optional implementation, the first transmission module 501 receiving the first cell discovery signal includes:

[0221] The first cell discovery signal is received according to at least part of the sending parameters of the cell discovery signal in the first dimension.

[0222] In an optional implementation, at least part of the transmission parameters of the cell discovery signal in the first dimension include at least one of the following:

[0223] Sending cycle;

[0224] Transmit power;

[0225] frequency grid;

[0226] The root sequence used;

[0227] The branch sequence of the root sequence used.

[0228] In an optional implementation, the first transmission module 501 is also used to receive a second cell discovery signal or a second system message of the second dimension after moving from the first dimension to the second dimension of the target cell, wherein the second system message carries at least part of the sending parameters of the cell discovery signal of the second dimension; the acquisition module 502 is also used to determine the configuration information of the discovery signal of the second dimension based on the second discovery signal and the second system message.

[0229] The device for obtaining the cell dimension configuration information in the embodiment 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 a chip. The electronic device can be a terminal, or it can be a device other than a terminal. For example, the terminal can include but is not limited to the types of terminals 11 listed above, and other devices can be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.

[0230] The device for obtaining cell dimension configuration information provided in the embodiment of the present application can implement the various processes implemented in the method embodiment of Figure 3 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0231] The method for sending a cell discovery signal provided in the embodiment of the present application can be performed by a cell discovery signal sending device. In the embodiment of the present application, the method for obtaining cell dimension configuration information performed by the cell discovery signal sending device is taken as an example to illustrate the cell discovery signal sending device provided in the embodiment of the present application.

[0232] Figure 6 shows a structural diagram of a cell discovery signal sending device provided by an exemplary embodiment of the present application. The device can implement all or part of the contents of the embodiment shown in Figure 4. As shown in Figure 6, the cell discovery signal sending device 600 includes: a determination module 601 and a second transmission module 602.

[0233] In the embodiment of the present application, the determination module 601 is configured to determine at least one dimension included in the target cell; the second transmission module 602 is configured to send the cell discovery signal of each dimension respectively according to the discovery signal configuration parameters of each dimension;

[0234] Among them, the discovery signal configuration parameters of different dimensions are configured separately;

[0235] One of the at least one dimension corresponds to at least one of the following:

[0236] at least one sub-area of ​​the target cell;

[0237] at least one subspace of the target cell;

[0238] at least one sub-cell of the target cell;

[0239] the coverage of at least some of the multiple beams of the target cell;

[0240] A beam set includes coverage of at least part of the multiple beams of the target cell.

[0241] In an optional implementation manner, the discovery signal configuration parameter of the dimension includes: a dimension identifier.

[0242] In an optional implementation manner, the configuration information of the dimension corresponding to the cell discovery signal is indicated by one of the following:

[0243] information carried in the cell discovery signal;

[0244] The cell discovery signal includes a target synchronization signal sequence, wherein the target synchronization signal sequence includes one of the following: a primary synchronization signal sequence, a secondary synchronization signal sequence;

[0245] The frequency grid used by the cell discovery signal.

[0246] In an optional implementation, the determination module is further configured to configure the dimension identifier of the dimension according to a predetermined rule.

[0247] In an optional implementation, the discovery signal configuration parameters include transmission parameters for sending the cell discovery signal of the dimension, and the transmission parameters include at least one of the following:

[0248] Sending cycle;

[0249] Transmit power;

[0250] Frequency grid configuration;

[0251] Root sequence of synchronization signal sequence;

[0252] A branch sequence of the root sequence of the synchronization signal sequence.

[0253] In an optional implementation, the second transmission module 602 sends the cell discovery signal beam of the dimension according to the signal transmission configuration parameters corresponding to the dimension.

[0254] In an optional implementation, the at least one cell discovery signal beam of the same dimension satisfies at least one of the following:

[0255] Same sending cycle;

[0256] Same transmit power;

[0257] Same frequency grid;

[0258] The target synchronization signal sequence used corresponds to the same root sequence;

[0259] The target synchronization signal sequence used corresponds to the same branch sequence of the same root sequence.

[0260] In an optional implementation, the cell discovery signal is used to indicate the configuration information of the dimension, wherein the configuration information of the dimension includes at least one of the following: an identifier of the dimension, a parameter for calculating the dimension identifier of the dimension, a list of dimensions included in the target cell, the number of dimensions included in the target cell, location information of the area or space covered by the dimension, and height information of the space covered by the dimension.

[0261] In an optional implementation, the second transmission module 602 is further configured to send a measurement configuration to the terminal, where the measurement configuration includes measurement parameters configured for at least one dimension of the target cell.

[0262] In an optional implementation, the second transmission module 602 is further configured to broadcast a neighbor cell list, wherein the neighbor cell list indicates dimension configuration information of at least one neighbor cell.

[0263] In an optional implementation manner, the measurement configuration further includes a measurement event, and the measurement event is used to instruct the terminal to measure the discovery signal strength between different dimensions of the target cell.

[0264] In an optional implementation, the second transmission module 602 is further configured to send a system message corresponding to the dimension, wherein the system message carries at least part of the sending parameters of the cell discovery signal of the dimension.

[0265] The device for obtaining the cell dimension configuration information in the embodiment 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 a chip. The electronic device can be a terminal, or it can be a device other than a terminal. For example, the terminal can include but is not limited to the types of terminals 11 listed above, and other devices can be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.

[0266] The device for obtaining cell dimension configuration information provided in the embodiment of the present application can implement the various processes implemented in the method embodiment of Figure 4 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0267] As shown in Figure 7, an embodiment of the present application also provides a communication device 700, including a processor 701 and a memory 702, and 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 is executed by the processor 701 to implement the various steps of the method embodiment of the above-mentioned method for obtaining cell dimension configuration information, and can achieve the same technical effect. When the communication device 700 is a network side device, the program or instruction is executed by the processor 701 to implement the various steps of the method embodiment of the above-mentioned method for sending cell discovery signals, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0268] The present application also 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 steps of the method embodiment shown in FIG3 . This terminal embodiment corresponds to the aforementioned terminal-side method embodiment, and each implementation process and implementation method of the aforementioned method embodiment is applicable to this terminal embodiment and can achieve the same technical effects. Specifically, FIG8 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present application.

[0269] The terminal 800 includes but is not limited to: a radio frequency unit 801, a network module 802, an audio output unit 803, an input unit 804, a sensor 805, a display unit 806, a user input unit 807, an interface unit 808, a memory 809 and at least some of the components of the processor 810.

[0270] Those skilled in the art will appreciate that the terminal 800 may also include a power supply (such as a battery) to power various components. The power supply may be logically connected to the processor 810 via a power management system, thereby enabling the power management system to manage charging, discharging, and power consumption. The terminal structure shown in FIG8 does not limit the terminal. The terminal may include more or fewer components than shown, or may combine certain components, or have different component arrangements, which will not be described in detail here.

[0271] It should be understood that in an embodiment of the present application, the input unit 804 may include a graphics processing unit (GPU) 8041 and a microphone 8042, and the graphics processing unit 8041 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 806 may include a display panel 8061, and the display panel 8061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 807 includes a touch panel 8071 and at least one of other input devices 8072. The touch panel 8071 is also called a touch screen. The touch panel 8071 may include two parts: a touch detection device and a touch controller. Other input devices 8072 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 a joystick, which will not be repeated here.

[0272] In the embodiment of the present application, after receiving downlink data from a network-side device, the radio frequency unit 801 may transmit the data to the processor 810 for processing. Furthermore, the radio frequency unit 801 may send uplink data to the network-side device. Typically, the radio frequency unit 801 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0273] The memory 809 can be used to store software programs or instructions and various data. The memory 809 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 809 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 random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DRRAM). The memory 809 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0274] Processor 810 may include one or more processing units. Optionally, processor 810 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 810.

[0275] The radio frequency unit 801 receives a first cell discovery signal;

[0276] The processor 810 is configured to obtain configuration information of a first dimension in which the terminal is located based on the received first cell discovery signal;

[0277] The first dimension is a dimension of the target cell, the target cell includes at least one dimension, and one of the at least one dimension corresponds to at least one of the following:

[0278] at least one sub-area of ​​the target cell;

[0279] at least one subspace of the target cell;

[0280] at least one sub-cell of the target cell;

[0281] the coverage of at least some of the multiple beams of the target cell;

[0282] A beam set includes coverage of at least part of the multiple beams of the target cell.

[0283] Optionally, the processor 810 is further configured to determine the space covered by the first dimension based on a predetermined rule and a dimension identifier of the first dimension, wherein the dimension identifiers of the respective dimensions of the target cell are configured according to the predetermined rule.

[0284] Optionally, the processor 810 is further configured to:

[0285] Performing measurement of the target cell and neighboring cells of the target cell based on a measurement configuration sent by a network-side device, wherein the measurement configuration includes measurement parameters configured for at least one dimension of the target cell;

[0286] Based on the measurement result, a measurement report is sent to the network side device, wherein the measurement report includes at least one of the following: a cell identifier, a dimension identifier, a beam identifier, and a discovery signal strength.

[0287] Optionally, the radio frequency unit 801 is further used to: obtain a neighbor cell list broadcast by the network side device, wherein the neighbor cell list indicates dimensional configuration information of at least one neighbor cell.

[0288] 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 of the method for obtaining cell dimension configuration information, and achieve the same or corresponding technical effect. To avoid repetition, it will not be repeated here.

[0289] 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 shown in FIG4 . 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.

[0290] Specifically, embodiments of the present application also provide a network-side device. As shown in Figure 9, the network-side device 900 includes an antenna 901, a radio frequency device 902, a baseband device 903, a processor 904, and a memory 905. Antenna 901 is connected to radio frequency device 902. In the uplink direction, radio frequency device 902 receives information via antenna 901 and sends the received information to baseband device 903 for processing. In the downlink direction, baseband device 903 processes the information to be transmitted and sends it to radio frequency device 902. Radio frequency device 902 processes the received information and then sends it through antenna 901.

[0291] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 903 , which includes a baseband processor.

[0292] The baseband device 903 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in Figure 9, one of which is, for example, a baseband processor, which is connected to the memory 905 through a bus interface to call the program in the memory 905 and execute the network device operations shown in the above method embodiment.

[0293] The network side device may further include a network interface 906, which is, for example, a Common Public Radio Interface (CPRI).

[0294] Specifically, the network side device 900 of the embodiment of the present application also includes: instructions or programs stored in the memory 905 and can be run on the processor 904. The processor 904 calls the instructions or programs in the memory 905 to execute the method of execution of each module shown in Figure 6 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0295] 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 method embodiment of the above-mentioned method for obtaining cell dimension configuration information, or the various processes of the method embodiment of the above-mentioned method for sending cell discovery signals are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0296] 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.

[0297] 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 method embodiment of the above-mentioned method for obtaining cell dimension configuration information, or to implement the various processes of the method embodiment of the above-mentioned method for sending cell discovery signals, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0298] 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.

[0299] 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 method embodiment of the above-mentioned method for obtaining cell dimension configuration information, or to implement the various processes of the method embodiment of the above-mentioned method for sending cell discovery signals, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0300] 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 method for acquiring cell dimension configuration information as described above, and the network side device can be used to execute the steps of the method for sending cell discovery signals as described above.

[0301] 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.

[0302] 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.

[0303] 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. A method for obtaining cell dimension configuration information, comprising: The terminal receives a first cell discovery signal; Based on the received first cell discovery signal, the terminal obtains the configuration information of the first dimension where the terminal is located; Wherein, the first dimension is a dimension of a target cell, the target cell includes at least one dimension, and one dimension in the at least one dimension corresponds to at least one of the following: At least one sub-region of the target cell; At least one subspace of the target cell; At least one sub-cell of the target cell; The coverage range of at least some of the multiple beams of the target cell; A beam set, the beam set including the coverage range of at least some of the multiple beams of the target cell.

2. The method according to claim 1, wherein, Based on the received first cell discovery signal, the terminal obtains the configuration information of the first dimension where the terminal is located, including one of the following: The terminal obtains the configuration information of the first dimension based on the information carried in the first cell discovery signal; The terminal obtains the configuration information of the first dimension based on the target synchronization signal sequence included in the first cell discovery signal, where the target synchronization signal sequence includes one of the following: the primary synchronization signal sequence, the secondary synchronization signal sequence; The terminal obtains the configuration information of the first dimension based on the target frequency grid used by the first cell discovery signal.

3. The method according to claim 2, wherein, The terminal obtains the configuration information of the first dimension based on the information carried in the first cell discovery signal, including one of the following: The terminal obtains the configuration information of the first dimension carried in the first cell discovery signal; The terminal obtains the target parameter carried in the first cell discovery signal, and obtains the configuration information of the first dimension according to the target parameter.

4. The method according to claim 3, wherein, The configuration information of the first dimension includes: the dimension identifier of the first dimension; the target parameter includes one of the following: The first indication information and the target beam number, where the first indication information is used to indicate the maximum value of the number of discovery signal beams corresponding to a dimension of the target cell, and the target beam number is used to indicate the beam number of the discovery signal beam corresponding to the first cell discovery signal in the target cell; The target beam number, where the target beam number is used to indicate the beam number of the discovery signal beam corresponding to the first cell discovery signal in the target cell; The second indication information and the target beam number, where the second indication information is used to indicate the number of dimensions of the target cell, and the target beam number is used to indicate the beam number of the discovery signal beam corresponding to the first cell discovery signal in the target cell.

5. The method according to claim 2, wherein The configuration information of the first dimension includes: the dimension identifier of the first dimension; the terminal obtains the dimension identifier of the first dimension based on the target synchronization signal sequence included in the first cell discovery signal, including one of the following: The terminal obtains the dimension identifier of the first dimension according to the target root sequence, where the target root sequence is the root sequence corresponding to the target synchronization signal sequence included in the first cell discovery signal, and the root sequences corresponding to the target synchronization signal sequences included in the cell discovery signals corresponding to different dimensions of the target cell are different; The terminal obtains the dimension identifier of the first dimension according to the target branch sequence, where the target branch sequence is a branch of the root sequence corresponding to the target synchronization signal sequence included in the first cell discovery signal, and the target synchronization signal sequences used by the cell discovery signals corresponding to different dimensions of the target cell belong to different branches of the same root sequence.

6. The method according to claim 2, wherein, The terminal obtains the configuration information of the first dimension based on the target frequency raster used by the first cell discovery signal, including: The terminal obtains the configuration information of the first dimension corresponding to the target frequency raster according to the correspondence between the frequency raster and the configuration information.

7. The method according to any one of claims 1 to 6, wherein The configuration information of the first dimension includes: the dimension identifier of the first dimension; after the terminal obtains the configuration information of the first dimension where the terminal is located based on the received first cell discovery signal, the method further includes: The terminal determines the space covered by the first dimension based on a predetermined rule and the dimension identifier of the first dimension, where the dimension identifiers of each dimension of the target cell are configured according to the predetermined rule.

8. The method according to any one of claims 1 to 7, wherein The first cell discovery signal is used to indicate the configuration information of the first dimension, where the configuration information includes at least one of the following: the identifier of the first dimension, the parameter for calculating the dimension identifier of the first dimension, the dimension list included in the target cell, the number of dimensions included in the target cell, the location information of the coverage area or coverage space of the first dimension, the height information of the coverage space of the first dimension.

9. The method according to any one of claims 1 to 8, wherein, The method further includes: The terminal performs measurements on the target cell and the neighboring cells of the target cell based on the measurement configuration sent by the network side device, where the measurement configuration includes measurement parameters configured for at least one dimension of the target cell; The terminal sends a measurement report to the network side device based on the measurement result, where the measurement report includes at least one of the following: cell identifier, dimension identifier, beam identifier, discovery signal strength.

10. The method according to claim 9, wherein, Before the terminal performs measurements on the target cell and the neighboring cells of the target cell based on the measurement configuration sent by the network side device, the method further includes: The terminal obtains the neighboring cell list broadcast by the network side device, where the neighboring cell list indicates the dimension configuration information of at least one neighboring cell.

11. The method according to claim 9 or 10, wherein The measurement configuration further includes a measurement event, and the measurement event is used to indicate that the terminal measures the discovery signal strength between different dimensions of the target cell.

12. The method according to any one of claims 1 to 11, wherein One dimension includes at least one discovery signal beam, and the at least one discovery signal beam satisfies at least one of the following: The same transmission period; The same transmission power; The same frequency raster; The target synchronization signal sequences used correspond to the same root sequence; The target synchronization signal sequence used corresponds to the same branch sequence of the same root sequence.

13. The method according to any one of claims 1 to 12, wherein The method further includes: The terminal receives a first system message, where at least part of the transmission parameters of the cell discovery signal in the first dimension are carried in the first system message.

14. The method according to claim 13, wherein, The terminal receiving the first cell discovery signal includes: The terminal receives the first cell discovery signal according to at least part of the transmission parameters of the cell discovery signal in the first dimension.

15. The method according to claim 13 or 14, wherein, At least part of the transmission parameters of the cell discovery signal in the first dimension includes at least one of the following: Transmission period; Transmission power; Frequency grid; The root sequence used; The branch sequence of the root sequence used.

16. The method according to any one of claims 1 to 15, wherein, The method further includes: After moving from the first dimension to the second dimension of the target cell, the terminal receives a second cell discovery signal or a second system message in the second dimension, where at least part of the transmission parameters of the cell discovery signal in the second dimension are carried in the second system message; Based on the second cell discovery signal and the second system message, determine the configuration information of the discovery signal in the second dimension.

17. A method for transmitting a cell discovery signal, including: The network-side device determines at least one dimension included in the target cell; The network-side device transmits cell discovery signals in each dimension according to the discovery signal configuration parameters in each dimension; Among them, the discovery signal configuration parameters in different dimensions are configured separately; One of the at least one dimension corresponds to at least one of the following: At least one sub-region of the target cell; At least one subspace of the target cell; At least one sub-cell of the target cell; The coverage range of at least part of the multiple beams of the target cell; A beam set, where the beam set includes the coverage range of at least part of the multiple beams of the target cell.

18. The method according to claim 17, wherein, The discovery signal configuration parameters of the dimension include: dimension identifier.

19. The method according to claim 17 or 18, wherein The configuration information of the dimension corresponding to the cell discovery signal is indicated by one of the following: The information carried in the cell discovery signal; The target synchronization signal sequence is included in the cell discovery signal, where the target synchronization signal sequence includes one of the following: primary synchronization signal sequence, secondary synchronization signal sequence; The frequency grid used by the cell discovery signal.

20. The method according to any one of claims 17 to 19, wherein After the network-side device determines at least one dimension included in the target cell, the method further includes: The network-side device configures the dimension identifier of the dimension according to a predetermined rule.

21. The method according to any one of claims 17 to 20, wherein, The discovery signal configuration parameters include transmission parameters for transmitting the cell discovery signal in the dimension, and the transmission parameters include at least one of the following: Transmission period; Transmission power; Frequency grid configuration; The root sequence of the synchronization signal sequence; The branch sequence of the root sequence of the synchronization signal sequence.

22. The method according to any one of claims 17 to 21, wherein For any one of the dimensions, the network-side device transmits the cell discovery signal beam in the dimension according to the transmission signal configuration parameters corresponding to the dimension.

23. The method according to claim 22, wherein The at least one cell discovery signal beam in the same dimension satisfies at least one of the following: The same transmission period; The same transmission power; The same frequency grid; The target synchronization signal sequences used correspond to the same root sequence; The target synchronization signal sequences used correspond to the same branch sequence of the same root sequence.

24. The method according to any one of claims 17 to 23, wherein The cell discovery signal is used to indicate the configuration information of the dimension, where the configuration information of the dimension includes at least one of the following: the identifier of the dimension, the parameter for calculating the dimension identifier of the dimension, the dimension list included in the target cell, the number of dimensions included in the target cell, the location information of the area or space covered by the dimension, the height information of the space covered by the dimension.

25. The method according to any one of claims 17 to 23, wherein The method further includes: the network side device sending measurement configuration to the terminal, where the measurement configuration includes measurement parameters configured for at least one dimension of the target cell.

26. The method according to claim 25, wherein, The method further includes: the network side device broadcasting a neighbor cell list, where the neighbor cell list indicates the dimension configuration information of at least one neighbor cell.

27. The method according to claim 25 or 26, wherein, The measurement configuration further includes a measurement event, and the measurement event is used to indicate that the terminal measures the discovery signal strength between different dimensions of the target cell.

28. The method according to any one of claims 17 to 27, wherein The method further includes: The network side device sends the system message corresponding to the dimension, where at least part of the transmission parameters of the cell discovery signal of the dimension are carried in the system message.

29. An apparatus for obtaining cell dimension configuration information, including: A first transmission module, configured to receive a first cell discovery signal; An obtaining module, configured to obtain the configuration information of the first dimension where the terminal is located based on the received first cell discovery signal; Wherein, the first dimension is a dimension of a target cell, the target cell includes at least one dimension, and one dimension corresponds to at least one of the following: At least one sub-region of the target cell; At least one subspace of the target cell; At least one sub-cell of the target cell; The coverage range of at least part of the multiple beams of the target cell; A beam set, and the beam set includes the coverage range of at least part of the multiple beams of the target cell.

30. The apparatus according to claim 29, wherein, The obtaining module obtaining the configuration information of the first dimension corresponding to the first cell discovery signal based on the received first cell discovery signal includes one of the following: Obtaining the configuration information of the first dimension based on the information carried in the first cell discovery signal; Obtaining the configuration information of the first dimension based on the target synchronization signal sequence included in the first cell discovery signal, where the target synchronization signal sequence includes one of the following: the primary synchronization signal sequence, the secondary synchronization signal sequence; Obtaining the configuration information of the first dimension based on the target frequency grid used by the first cell discovery signal.

31. The apparatus according to claim 30, wherein, The obtaining the configuration information of the first dimension based on the information carried in the first cell discovery signal includes one of the following: Obtaining the configuration information of the first dimension carried in the first cell discovery signal; Obtaining the target parameter carried in the first cell discovery signal, and obtaining the configuration information of the first dimension according to the target parameter.

32. The apparatus according to claim 30, wherein, The obtaining the configuration information of the first dimension based on the target synchronization signal sequence included in the first cell discovery signal includes one of the following: Obtain the configuration information of the first dimension according to the target root sequence, where the target root sequence is the root sequence corresponding to the target synchronization signal sequence included in the first cell discovery signal, and the root sequences corresponding to the target synchronization signal sequences included in the cell discovery signals corresponding to different dimensions of the target cell are different; Obtain the configuration information of the first dimension according to the target branch sequence, where the target branch sequence is a branch of the root sequence corresponding to the target synchronization signal sequence included in the first cell discovery signal, and the target synchronization signal sequences used by the cell discovery signals corresponding to different dimensions of the target cell belong to different branches of the same root sequence.

33. The apparatus according to claim 30, wherein, The obtaining the configuration information of the first dimension based on the target frequency raster used by the first cell discovery signal includes: Obtain the configuration information of the first dimension corresponding to the target frequency raster according to the correspondence between the frequency raster and the configuration information.

34. The apparatus according to any one of claims 29 to 33, wherein, The obtaining module is further configured to determine the space covered by the first dimension based on a predetermined rule and the dimension identifier of the first dimension, where the dimension identifiers of each dimension of the target cell are configured according to the predetermined rule.

35. The device according to any one of claims 29 to 34, wherein, Further includes: A measurement module, configured to: Perform measurements on the target cell and neighboring cells of the target cell based on measurement configurations sent by the network-side device, where the measurement configurations include measurement parameters configured for at least one dimension of the target cell; Send a measurement report to the network-side device based on the measurement results, where the measurement report includes at least one of the following: cell identifier, dimension identifier, beam identifier, discovery signal strength.

36. A cell discovery signal transmission device, including: A determination module, configured to determine at least one dimension included in the target cell; A second transmission module, configured to transmit cell discovery signals of each of the dimensions respectively according to the discovery signal configuration parameters of each dimension; Wherein, the discovery signal configuration parameters of different dimensions are configured respectively; One of the at least one dimension corresponds to at least one of the following: At least one sub-region of the target cell; At least one subspace of the target cell; At least one sub-cell of the target cell; The coverage range of at least some of the multiple beams of the target cell; A beam set, where the beam set includes the coverage range of at least some of the multiple beams of the target cell.

37. The apparatus according to claim 36, wherein, Further includes: A configuration module, configured to configure the dimension identifiers of each of the dimensions according to a predetermined rule.

38. The apparatus according to claim 36 or 37, wherein, The second transmission module transmits the cell discovery signal beam of the dimension according to the transmission signal configuration parameter corresponding to the dimension.

39. A terminal, including a processor and a memory, where the memory stores a program or instruction that can run on the processor, and when the program or instruction is executed by the processor, the steps of the method for obtaining cell dimension configuration information according to any one of claims 1 to 16 are implemented.

40. A network-side device, comprising a processor and a memory, where the memory stores programs or instructions that can run on the processor, and when the programs or instructions are executed by the processor, the steps of the method for sending a cell discovery signal according to any one of claims 17 to 28 are implemented.

41. A readable storage medium, on which programs or instructions are stored, and when the programs or instructions are executed by a processor, the steps of the method for obtaining cell dimension configuration information according to any one of claims 1 to 16 are implemented, or the steps of the method for sending a cell discovery signal according to any one of claims 17 to 28 are implemented.

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