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

Abstract

The invention discloses a cell dimension configuration information obtaining method, a terminal and network side equipment, and belongs to the technical field of wireless communication, and the cell dimension configuration information obtaining method comprises the steps that the terminal receives a first cell discovery signal; the terminal obtains configuration information of a first dimension where the terminal is located based on the received first cell discovery signal; wherein the first dimension is one dimension of a target cell, the target cell comprises at least one dimension, and one dimension in the at least one dimension corresponds to at least one of the following dimensions: 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 a part of beams in the plurality of beams of the target cell; and a set of beams, the set of beams comprising a coverage of at least a portion of the plurality of beams of the target cell.

Description

Technical Field

[0001] This application belongs to the field of wireless communication technologies, and particularly relates to a method for obtaining cell dimension configuration information, a terminal, and a network-side device. Background Art

[0002] With the development of antenna technologies, the coverage range of cells has increased elastically. In the existing New Radio (NR) technology, the same cell can use several Synchronization Signal Block (SSB) beams as the discovery signals of the cell, and a User Equipment (UE) can discover and access the cell by monitoring the discovery signals.

[0003] However, in the related technologies, no effective solution has been given on how to configure the cell discovery signals. Summary of the Invention

[0004] Embodiments of this application provide a method for obtaining cell dimension configuration information, a terminal, and a network-side device, which can achieve configuration through cell discovery signals.

[0005] In a first aspect, a method for obtaining cell dimension configuration information is provided, which is executed by a terminal. The method includes: the terminal receives a first cell discovery signal; the terminal obtains configuration information of a first dimension where the terminal is located based on the received first cell discovery signal; where 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; coverage ranges of at least some of multiple beams of the target cell; a beam set, where the beam set includes coverage ranges of at least some of multiple beams of the target cell.

[0006] In a second aspect, a method for sending cell discovery signals is provided, which is executed by a network-side device. The method includes: the network-side device determines at least one dimension included in a target cell; the network-side device respectively sends cell discovery signals of each dimension according to discovery signal configuration parameters corresponding to each dimension; where the discovery signal configuration parameters of different dimensions are respectively configured; 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; coverage ranges of at least some of multiple beams of the target cell; a beam set, where the beam set includes coverage ranges of at least some of multiple beams of the target cell.

[0007] In a third aspect, a device for obtaining cell dimension configuration information is provided. The device includes: a first transmission module configured to receive a first cell discovery signal; an obtaining module configured to obtain configuration information of a first dimension where a terminal is located based on the received first cell discovery signal; where the first dimension is one 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; coverage ranges of at least some of a plurality of beams of the target cell; a beam set that includes coverage ranges of at least some of a plurality of beams of the target cell.

[0008] In a fourth aspect, a device for transmitting a cell discovery signal is provided. The device includes: a determination module configured to determine at least one dimension included in a target cell; a second transmission module configured to transmit cell discovery signals of respective dimensions according to discovery signal configuration parameters corresponding to the respective dimensions; where the discovery signal configuration parameters of different dimensions are configured separately; 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; coverage ranges of at least some of a plurality of beams of the target cell; a beam set that includes coverage ranges of at least some of a plurality of beams of the target cell.

[0009] In a fifth aspect, a terminal is provided. The terminal includes a processor and a memory. The memory stores a program or instruction that can run on the processor. When the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0010] In a sixth aspect, a terminal is provided, including a processor and a communication interface. The processor is configured to implement the steps of the method described in the first aspect, and the communication interface is configured to be coupled with the processor.

[0011] In a seventh aspect, a network-side device is provided. The network-side device includes a processor and a memory. The memory stores a program or instruction that can run on the processor. When the program or instruction is executed by the processor, the steps of the method described in the second aspect are implemented.

[0012] In an eighth aspect, a network-side device is provided, including a processor and a communication interface. The processor is configured to implement the steps of the method described in the second aspect, and the communication interface is configured to be coupled with the processor.

[0013] In a ninth aspect, a readable storage medium is provided, on which a program or instructions are stored, and when the program or instructions are 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.

[0014] In a tenth aspect, a wireless communication system is provided, including: a terminal and a network-side device, where 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.

[0015] In an eleventh aspect, a chip is provided, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a program 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.

[0016] In a twelfth aspect, a computer program / program product is provided, the computer program / program product is stored in a storage medium, and the program / program product 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.

[0017] In the method for obtaining cell dimension configuration information provided in the embodiments of the present application, a terminal can receive a first cell discovery signal; then, based on the received first cell discovery signal, obtain the configuration information of the first dimension where the terminal is located, where the target cell includes at least one dimension. In the embodiments of the present application, a target cell may include multiple dimensions, and the network-side device sends the cell discovery signal corresponding to this dimension respectively on each dimension. The terminal can identify the configuration information of the first dimension where the terminal is located according to the received target cell signal, so that the configuration for each dimension of the target cell can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A block diagram of a wireless communication system to which the embodiments of the present application can be applied is shown;

[0019] Figure 2a A schematic diagram of a three-dimensional multi-dimensional cell to which the embodiments of the present application can be applied is shown;

[0020] Figure 2b A schematic diagram of a water-land two-dimensional cell to which the embodiments of the present application can be applied is shown;

[0021] Figure 2c A schematic diagram of a heterogeneous multi-dimensional cell to which the embodiments of the present application can be applied is shown;

[0022] Figure 3 A flowchart of a method for obtaining cell dimension configuration information provided in the embodiments of the present application is shown;

[0023] Figure 4 A schematic flowchart showing a method for transmitting a cell discovery signal provided by an embodiment of the present application;

[0024] Figure 5 A schematic structural diagram showing an apparatus for obtaining cell dimension configuration information provided by an embodiment of the present application;

[0025] Figure 6 A schematic structural diagram showing an apparatus for transmitting a cell discovery signal provided by an embodiment of the present application;

[0026] Figure 7 A schematic structural diagram showing a communication device provided by an embodiment of the present application;

[0027] Figure 8 A schematic hardware structure diagram showing a terminal provided by an embodiment of the present application;

[0028] Figure 9 A schematic hardware structure diagram showing a network - side device provided by an embodiment of the present application. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0030] The terms "first", "second", etc. in the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances 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 category, and do not limit the number of objects. For example, the first object can be one or multiple. In addition, "or" in the present application means at least one of the connected objects. For example, "A or B" covers three scenarios, namely, Scenario 1: including A and not including B; Scenario 2: including B and not including A; Scenario 3: including both A and B. The character " / " generally indicates an "or" relationship between the associated objects before and after.

[0031] The term "indication" in this application can be either a direct indication (or an explicit indication) or an indirect indication (or an implicit indication). Among them, a direct indication can be understood as that the sender clearly tells the receiver specific information, operations to be performed, request results, etc. in the sent indication; an indirect indication can be understood as that the receiver determines the corresponding information according to the indication sent by the sender, or makes a judgment and determines the operations to be performed or request results, etc. according to the judgment result.

[0032] It should be noted that the technology described in the embodiments of this application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, and 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 this application are often used interchangeably, and the described technology can be used not only in the above-mentioned systems and radio technologies, but also in other systems and radio technologies. The following description describes the New Radio (NR) system for example purposes, and uses the NR term in most of the following descriptions, but these technologies can also be applied to systems other than the NR system, such as the 6th Generation (6G) communication system. th Generation, 6G) communication system.

[0033] Figure 1A block diagram of a wireless communication system to which embodiments of the present application can be applied is shown. The wireless communication system includes a terminal 11 and a network-side device 12. Among them, the terminal 11 can be a mobile phone, a tablet personal computer, a 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, a flight vehicle, a vehicle user equipment (VUE), a shipborne device, a pedestrian user equipment (PUE), a smart home (home devices with wireless communication functions, such as refrigerators, TVs, washing machines, or furniture, etc.), a game console, a personal computer (PC), a teller machine, or a self-service machine, etc. Wearable devices include: smart watches, smart bracelets, smart earphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart ankle chains, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle user equipment can also be referred to as a vehicle terminal, a vehicle controller, a vehicle module, a vehicle component, a vehicle chip, or a vehicle unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network-side device 12 can include an access network device or a core network device. Among them, the access network device can also be referred to as a radio access network (RAN) device, a radio access network function, or a radio access network unit. The access network device can 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, Transmission Reception Point (TRP), or some other suitable term in the art. As long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiments of this application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

[0034] The core network device may include but is not limited to at least one of the following: core network node, core network function, Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (L-NEF), Binding Support Function (BSF), Application Function (AF), Location Management Function (LMF), Gateway Mobile Location Centre (GMLC), Network Data Analytics Function (NWDAF), etc. It should be noted that in the embodiments of this application, only the core network devices in the NR system are taken as examples for introduction, and the specific types of core network devices are not limited.

[0035] In the related art, 5G NR defines a wireless cell definition based on beam scanning, that is, the wireless cell of NR is provided with a cell discovery signal by a group of SSB beams. This group of SSB beams is transmitted according to a set period (20 ms) and power. Each SSB beam provides coverage in one azimuth, and there is partial overlapping coverage between adjacent SSB beams to provide seamless coverage.

[0036] The SSB is composed of a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS), and a Physical Broadcast Channel (PBCH). A terminal, also known as a User Equipment (UE), determines the presence of a cell by monitoring the SSB, achieves downlink synchronization with the cell, obtains the air interface timing of the cell, and obtains the configuration of the System Information Block (SIB) 1, etc.

[0037] Since the propagation losses of different frequencies are different, and the propagation loss of high-frequency carriers is higher than that of low-frequency carriers. To increase the coverage of high-frequency carriers, NR enhances cell coverage by improving large antenna technology and providing narrow beams to increase beamforming gain. Therefore, generally speaking, high-frequency cells of NR require more SSB beams to provide coverage for the target area of the same width range (angle). The maximum number of SSBs L for a cell is 4 when the carrier frequency is lower than 3 GHz, 8 when the carrier frequency is between 3 GHz and 6 GHz, and 64 when the carrier frequency is above 6 GHz.

[0038] When the UE is in the idle state (RRC_IDLE), it needs to monitor the signal quality of the SSB of the cell it is camped on at regular intervals to determine whether the signal quality of the currently camped cell is suitable for continued camping. 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 camping, and the UE will search for and measure the SSB signals of other cells. If a new cell with an SSB signal quality higher than the preset threshold is found, the UE will camp on the new cell.

[0039] 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 a measurement report to the serving base station according to the measurement report configuration (including measurement report triggering conditions, measurement report content, etc.) configured by the base station. The base station can determine whether to initiate a cell handover process based on the received measurement report and hand over the UE to a suitable neighboring cell.

[0040] The transmission frequency (i.e., period) of the SSB has the following three aspects of influence:

[0041] (I) From the aspect of the UE's quality of service, there are two aspects of influence:

[0042] (1) Influence on the UE's initial cell search. The larger the transmission period of the SSB, the longer the time to complete the cell search;

[0043] (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 its own cell and neighboring cells.

[0044] (II) From the aspect of network capacity, there are two aspects of influence:

[0045] (1) The smaller the transmission period of the SSB, the more radio resources occupied by the SSB transmission;

[0046] (2) The smaller the transmission period of the SSB, the greater the interference caused to neighboring cells, which will reduce the capacity of neighboring cells.

[0047] (III) From the aspect of network operation, there are two aspects of influence:

[0048] (1) The smaller the transmission period of the SSB, the more power consumed by the base station;

[0049] (2) The greater the transmission power of the SSB, the more power consumed. At the same time, the data symbols transmitted simultaneously with the SSB will be allocated less transmission power.

[0050] The radio cells of 2G / 3G / 4G use carrier frequencies below 6 GHz, mainly for providing terrestrial radio signal coverage. In the 5G era, the requirements for wireless signal coverage will be diversified. In addition to providing terrestrial coverage, ground base stations are also required to provide mid-low altitude wireless signal coverage. When 3GPP defined 5G at the beginning, there was a discussion on whether the concept of cellular cells still needed to be retained after using beam-based radio access technology. Finally, the concept of radio cells was still retained. As a typical example, for beamforming based on a planar antenna array, the best radiation angle is still a limited range less than 180 degrees. To provide 360-degree coverage at a site, it is best to use three planar antenna arrays, with each antenna array providing coverage of slightly more than 120 degrees, so as to achieve the purpose of 360-degree seamless coverage. Each antenna panel can transmit several SSB beams for covering a 120-degree range.

[0051] With the emergence of new services, there is a business demand for three-dimensional space to serve aircraft from the ground, high-rise urban floors, and medium and low altitudes using ground base stations. In addition to traditional horizontal beam scanning for providing ground coverage, aerial beam scanning is also required to provide high-rise floor and medium and low altitude coverage.

[0052] In addition, the concept of a cell is also evolving. With the development of large-scale antennas and distributed antennas, the coverage of a cell is no longer limited to the coverage range of a single-site antenna. The coverage area of a cell depends on the combined effects of several factors such as the number of antennas deployed in the cell, the deployment azimuth, the transmission power, and the frequency. Using distributed antennas can expand the coverage range of the cell, change the shape of the cell's coverage area, and cover shadow areas, etc.

[0053] In related technologies, several SSB beams are used as cell discovery signals for the same cell. The UE monitors the discovery signals to discover and access the cell. The transmission parameters of the SSB beams in the same cell are uniformly configured. That is to say, 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 poor. In addition, the scanning transmission of SSB in related technologies does not consider the service distribution differences in different regions or spaces of the cell. The SSB beams transmitted for sparse-service spaces or azimuths and dense-service azimuths have the same transmission period and transmission power, which increases the energy consumption cost for the network to provide coverage for sparse-service spaces and azimuths and at the same time brings pilot interference to neighboring cells. If different cell discovery signals are provided for different sub-regions or sub-spaces in the same area according to the existing NR technology, multiple different cells need to be used to jointly cover this area. When the UE moves between these different sub-regions, it needs to perform neighbor cell measurements and execute handover procedures, resulting in service interruption.

[0054] For example, the same cell provides both ground coverage and medium and low altitude coverage. The service types and loads within the ground coverage range are different from those within the medium and low altitude range. The ground coverage of the same cell provides both hot spot area coverage and wide area coverage, and there are significant differences in the service density between the hot spot areas and other areas within the wide area coverage. If the same transmission parameter configuration is used to transmit cell discovery signals in these areas, it may lead to an increase in the energy consumption cost for the network to provide coverage for sparse-service spaces and azimuths and at the same time bring pilot interference to neighboring cells.

[0055] In view of the above problems, the embodiments of the present application provide the concept of cell dimension. According to this embodiment, the coverage area of the same cell can be divided into different sub-regions or sub-spaces according to service distribution characteristics, space or region. Each sub-region or sub-space is called a dimension. The network-side device can send cell discovery signals for each dimension according to the configured parameters of the discovery signals. These parameters include but are not limited to transmission period, transmission power, time-frequency resource template, etc. Each dimension includes at least one discovery signal beam. Therefore, the cell in the embodiments 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.

[0056] Example 1: A three-dimensional multi-dimensional cell, such as Figure 2a shown, this cell includes at least one ground coverage dimension and at least one medium and low altitude coverage dimension. The former is used to provide ground coverage, and the latter is used to provide medium and low altitude coverage. In Figure 2a the provided three-dimensional cell example, there are three dimensions: Dimension 0 is used to provide wireless signal coverage for pedestrians, vehicles, and devices on the ground that require wireless connection; Dimension 1 is used to provide wireless connection for residents in the building. Relay nodes can be installed on the walls or windows of the building to relay wireless signals between the base station and the UE; Dimension 2 covers a higher space and is used to provide wireless connection services for medium and low altitude aircraft. The network-side device can determine the transmission parameters of the cell discovery signals for each dimension according to the service distribution, coverage requirements, power consumption, and interference control objectives of each dimension. For example, Dimension 1 provides indoor coverage. The moving speed indoors is low, and it is required that the cell discovery signal has strong penetration ability and can provide a discovery signal beam with a low period and high power; Dimension 2 is used to provide connection for aircraft. Based on the flight speed of the aircraft, a cell discovery signal with a short period can be provided to speed up the measurement speed and beam tracking. At the same time, according to the height of the aircraft, the appropriate transmission power can be determined.

[0057] Example 2: A land-water multi-dimensional cell, such as Figure 2b shown, 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 surface. The dimension on the left needs to be able to provide connection services for a dense crowd, while the dimension on the right only needs to provide basic coverage to facilitate the access of rowing tourists on the lake to the network. Since the area on the right is large and the business is scarce, to save costs, the network-side device provides a cell discovery signal with a large period and high power transmission for the right dimension to cover the vast lake surface. For the dimension on the left, the network-side device can provide a cell discovery signal with a shorter period for transmission, so that the cell measurement and beam tracking performance of the UE is better and the experience of the dense crowd is improved.

[0058] Example 3: A heterogeneous multi-dimensional cell, such as Figure 2cAs shown, the cell includes at least one Macro Dimension providing macro coverage and at least one Spot Dimension providing micro coverage. In Figure 2c In the provided heterogeneous multi-dimension cell example, there are three Spot Dimensions providing micro coverage. The network-side device determines the transmission parameters of the cell discovery signal for each dimension according to the corresponding coverage area, service distribution, and load. For the Spot Dimension with intensive services, the cell discovery signal parameters are determined according to the service characteristics of this area. For example, in the Spot Dimension at a road intersection, a short-period cell discovery signal is provided to improve beam tracking and provide fast neighbor cell measurement for passing vehicles to accelerate the cell handover speed. For the Spot Dimension covering a shadow area with sparse services, a lower cell discovery signal is used to save the energy consumption of the base station and reduce the interference caused by the transmission of the cell discovery signal under the condition of providing necessary coverage. The Macro Dimension can determine the transmission period of the cell discovery signal according to the typical service distribution in the coverage area. In addition, the Macro Dimension and the Spot Dimension can determine the respective cell discovery signal powers according to the sizes of their respective coverage areas.

[0059] Next, in conjunction with the accompanying drawings, the solution for obtaining the cell dimension configuration information provided in the embodiments of the present application will be described in detail through some embodiments and their application scenarios.

[0060] Figure 3 FIG. shows a schematic flowchart of a method for obtaining cell dimension configuration information in an embodiment of the present application. This 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 Figure 3 shown, the method may include the following steps.

[0061] S310, the terminal receives a first cell discovery signal.

[0062] In a specific implementation manner, the terminal may first receive the first cell discovery signal. For example, the terminal may receive the first cell discovery signal by scanning beams.

[0063] S312, based on the received first cell discovery signal, the terminal obtains the configuration information of the first dimension where the terminal is located.

[0064] In the embodiment of the present application, the first dimension is a dimension of a target cell. 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):

[0065] 1) At least one sub-region of the target cell.

[0066] In this implementation, the coverage area of the target cell can be divided into multiple sub-areas, and at least one of the sub-areas is a dimension of the target cell. For example, the ground area covered by the target cell is divided into multiple sub-areas.

[0067] For example, Figure 2b the dimension covered by the square and the dimension covered by the lake surface in

[0068] 2) At least one subspace of the target cell.

[0069] In this implementation, the coverage space of the target cell can be divided into multiple subspaces, and at least one of the subspaces is a dimension of the target cell. For example, the coverage space of the target cell is divided into three subspaces: ground, low altitude, and middle altitude, and each subspace is a dimension of the target cell.

[0070] For example, Figure 2a the ground coverage dimension, the middle space coverage dimension, and the higher space coverage dimension in

[0071] 3) At least one sub-cell of the target cell.

[0072] In this implementation, the coverage range of the target cell can be divided into multiple sub-cells, and at least one of the sub-cells is a dimension of the target cell.

[0073] For example, Figure 2c the micro-coverage dimension in

[0074] 4) The coverage range of at least some of the multiple beams of the target cell.

[0075] Each radio cell of NR can be provided with a cell discovery signal by a set of SSB beams. This set of SSB beams is transmitted according to a set period (e.g., 20 ms) and power. Each SSB beam provides coverage in one azimuth, and there is partial overlapping coverage between adjacent SSB beams to provide seamless coverage. Therefore, in this implementation, the coverage range of at least some of the multiple beams of the target cell is taken as a dimension of the target cell. For example, in Figure 2a the partial beams radiating to the ground are divided into a group, corresponding to the ground coverage dimension, the partial beams radiating to the middle space are divided into a group, corresponding to the middle space coverage dimension, and the partial beams radiating upward are divided into a group, corresponding to the higher space coverage dimension.

[0076] 5) A beam set, where the beam set includes the coverage range of at least some of the multiple beams of the target cell.

[0077] In this implementation manner, multiple beams of a target cell can be divided into multiple beam sets, and the coverage range of each beam set is one dimension of the target cell. For example, in Figure 2a part of the beams radiating towards the ground are taken as one beam set, corresponding to the ground coverage dimension; part of the beams radiating towards the middle space are taken as one beam set, corresponding to the middle space coverage dimension; and part of the beams radiating upwards are taken as one beam set, corresponding to the high space coverage dimension.

[0078] In an embodiment of the present application, the configuration information of the first dimension may include 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 position information of the coverage area or coverage space of the first dimension, and the height information of the coverage space of the first dimension. Through the configuration information of the first dimension, the terminal can obtain the relevant information of the first dimension and perform corresponding operations according to the relevant information of the first dimension in the subsequent process.

[0079] In an embodiment of the present application, the terminal can obtain the configuration information of the first dimension where the terminal is located according to the received first cell discovery signal. The first dimension is one 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 5 items. In the application, the coverage area of the same cell can be divided into different sub-areas or sub-spaces according to at least one of service distribution characteristics, space, or region, etc. Each sub-area or sub-space can be called a dimension, where each dimension includes at least one discovery signal beam, that is, at least one discovery signal beam is used to send the cell discovery signal in each dimension.

[0080] Through the technical solution provided by the embodiment of the present application, the terminal can receive the first cell discovery signal; then, based on the received first cell discovery signal, obtain the configuration information of the first dimension where the terminal is located, where the target cell includes at least one dimension. In an embodiment of the present application, a target cell includes multiple dimensions, and the network-side device sends the cell discovery signal corresponding to each dimension respectively on each dimension. The terminal can identify the dimension identifier of the first dimension where the terminal is located according to 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 regions or spaces of the same cell.

[0081] In one implementation manner, the terminal obtaining the configuration information of the first dimension where the terminal is located based on the received first cell discovery signal may include one of the following:

[0082] (1) The terminal obtains the configuration information of the first dimension based on the information carried in the first cell discovery signal.

[0083] For example, the network-side device may discover explicit configuration information carried in the signal of the first cell. This configuration information is used to indicate the configuration of the first dimension to which the discovery signal beam belongs, such as a dimension identifier, etc.

[0084] Alternatively, the network-side device may carry parameters for determining the configuration information of the first dimension in the discovery signal of the first cell. The terminal can obtain the configuration information of the first dimension based on these parameters.

[0085] For example, multiple configuration information items may be pre-agreed. The network-side device may carry an indication identifier of one of the configuration information items in the discovery signal of the first cell of the first dimension. The terminal can obtain the configuration information of the first dimension based on this indication identifier.

[0086] (2) The terminal obtains the configuration information of the first dimension based on the target synchronization signal sequence included in the discovery signal of the first cell, where the target synchronization signal sequence includes one of the following: a primary synchronization signal sequence, a secondary synchronization signal sequence.

[0087] In this implementation manner, the configuration information of the first dimension can be obtained through the target synchronization signal sequence in the discovery signal of the first cell. For example, the target synchronization signal sequences in the discovery signals of different dimensions may be derived from different root sequences or different branches of the same root sequence, and are obtained by deriving the root sequence or the branch of the root sequence of the target synchronization signal sequence. For example, it is pre-defined by the protocol that one root sequence or one branch of a root sequence corresponds to one configuration information item.

[0088] (3) The terminal obtains the dimension identifier of the first dimension based on the target frequency raster used by the discovery signal of the first cell.

[0089] In this implementation manner, the configuration information of the first dimension can be obtained through the target frequency raster used by the discovery signal of the first cell. For example, the discovery signals of different dimensions use different frequency rasters, and the configuration information of the first dimension can be determined through the target frequency raster used by the discovery signal of the first cell. For example, it is pre-agreed by the protocol that one raster configuration corresponds to one configuration information item.

[0090] In an optional implementation manner, the terminal obtaining the configuration information of the first dimension based on the information carried in the discovery signal of the first cell may include one of the following:

[0091] (1) The terminal obtains the configuration information of the first dimension carried in the first cell discovery signal. When the configuration information of the first dimension is carried in the received first cell discovery signal, that is, the explicit configuration information is carried in the first cell discovery signal, and this identifier is used to indicate the relevant configuration information of the discovery signal beam corresponding to the first cell discovery signal, the configuration information of the first dimension can be directly obtained according to the configuration information of the first dimension carried in the first cell discovery signal.

[0092] (2) 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. Optionally, when the target parameter is carried in the received first cell discovery signal, the configuration information of the first dimension can be obtained through corresponding calculations according to the target parameter.

[0093] The configuration information of the first dimension may include the dimension identifier of the first dimension, and the target parameter may be in the following several implementation manners:

[0094] In the first implementation manner, the target parameter may include: the first indication information and the target beam sequence number, where the first indication information is used to indicate the maximum value of the number of discovery signal beams corresponding to one dimension of the target cell (which may also be referred to as the maximum number of discovery signal beams), 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. In this implementation manner, the terminal can calculate the dimension identifier of the first dimension through the first indication information and the target beam sequence number carried in the first cell discovery signal. For example, the dimension identifier of the first dimension = floor(beam sequence number / the maximum value of the number of discovery signal beams corresponding to one dimension).

[0095] In the second implementation manner, the target parameter may include: the target beam sequence number, where 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.

[0096] In this embodiment, the maximum number of discovery signal beams that a dimension can contain can be predefined by a protocol. The protocol can define a list of the maximum number of discovery signal beams for a dimension. The network-side device indicates the serial number of the maximum number of discovery signal beams corresponding to a 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 serial number to determine the maximum number of discovery signal beams for each dimension (i.e., the maximum value of the number of discovery signal beams mentioned above). The terminal can calculate the dimension identifier of the first dimension based on the target beam serial number carried in the first cell discovery signal and the determined maximum number of discovery signal beams. For example, the dimension identifier of the first dimension = floor(beam serial number / the maximum value of the number of discovery signal beams corresponding to a dimension).

[0097] In the above first and second embodiments, for example, if the maximum number of discovery signal beams for each dimension is 8 and the cell has 3 dimensions, then 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.

[0098] In the third embodiment, the target parameter may include: second indication information and a target beam serial number, where 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 serial number is used to indicate the beam serial number of the discovery signal beam corresponding to the first cell discovery signal in the target cell.

[0099] In this embodiment, the terminal can calculate the dimension identifier of the first dimension based on the number of dimensions of the target cell and the target beam serial number carried in the first cell discovery signal. For example, the dimension identifier of the first dimension = beam serial number % total number of dimensions, where "%" represents the modulo operation.

[0100] In one embodiment, for the terminal to obtain the dimension identifier of the first dimension based on the target synchronization signal sequence included in the first cell discovery signal, it may include: the terminal obtains 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.

[0101] In this embodiment, the received first cell discovery signal includes primary / supplementary synchronization signals. The primary / supplementary synchronization signals of the synchronization signals of the first cell discovery signal in one dimension are a set of sequences derived from the same root sequence, and the root sequences of the cell discovery signals in different dimensions are different. Therefore, the terminal can obtain the configuration information of the first dimension according to the target root sequence corresponding to the target synchronization signal sequence. For example, the protocol can pre-define a configuration information corresponding to a root sequence, and the terminal can obtain the configuration information corresponding to the root sequence according to the root sequence of the target synchronization sequence in the received first cell discovery signal.

[0102] In one embodiment, for the terminal to obtain the configuration information of the first dimension based on the target synchronization signal sequence included in the first cell discovery signal, it may include: the terminal obtains 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.

[0103] In this embodiment, the primary / supplementary synchronization signals of the synchronization signals of the first cell discovery signal in one dimension may be a set of sequences derived from different branches of the same root sequence, and the branches corresponding to the first cell discovery signals in different dimensions are different. One branch of a root sequence corresponds to a dimension identifier, and the dimension identifier of the first dimension can be obtained according to the target branch sequence. For example, the protocol can pre-define the configuration information corresponding to each branch of the same root sequence. The terminal can obtain the configuration information corresponding to the branch of the root sequence of the target synchronization sequence in the received first cell discovery signal.

[0104] In one embodiment, for the terminal to obtain the configuration information of the first dimension based on the target frequency grid used by the first cell discovery signal, it may include: the terminal obtains 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 can define the correspondence between the frequency grid where the cell discovery signal is located and the configuration information. After receiving the first cell discovery signal, the terminal can determine the configuration information of the first dimension through the correspondence between the target frequency grid used by the first cell discovery signal and the dimension identifier.

[0105] In the above embodiment, optionally, the protocol can define a basic frequency grid and several supplementary frequency grids for sending discovery signals. Any cell must use its basic frequency grid to send the discovery signal of one dimension. If the cell has other dimensions, it uses the supplementary frequency grid to send the discovery signal of one dimension.

[0106] In one implementation, 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 may further include: the terminal determines the space covered by the first dimension based on a predetermined rule and the configuration information of the first dimension, where the configuration information of each dimension of the target cell is configured according to the predetermined rule.

[0107] For example, the network side device can use a dimension identifier according to a predetermined rule predefined by the protocol, which can facilitate the terminal to determine the space covered by the dimension where it is located. For example, as Figure 2a shown in the three-dimensional cell, dimension 0 can be the ground coverage dimension, and the dimension numbers above the ground increase according to the dimension height; as Figure 2b shown in the heterogeneous multi-dimensional cell, dimension 0 is the macro coverage dimension, and other larger dimension identifiers can be other micro coverage or pico coverage dimensions. As Figure 2c shown in the multi-dimensional cell including multiple parallel dimensions, dimension identifier 0 can be the dimension with the largest coverage or the most services, and larger dimension identifiers can be other dimensions.

[0108] After the terminal obtains the dimension identifier of the first dimension where the terminal is located based on the received first cell discovery signal, it can determine the space covered by the first dimension according to the predetermined rule and the dimension identifier of the first dimension.

[0109] In the above implementation, optionally, in order to enable the UE to determine the space covered by the dimension according to the dimension identifier, the UE does not expect a dimension cell to skip a dimension identifier with a smaller value and use a larger dimension identifier. For example, in the above Figure 2a shown three-dimensional cell, dimension 0 is the ground coverage dimension, dimension 1 is the low-altitude coverage dimension, and dimension 1 is the mid-air coverage dimension. If the terminal determines that the dimension identifier of the first dimension where it is currently located is dimension 0, it can determine that it is currently in the ground coverage range. In order to enable the terminal to accurately determine the space it is currently in, the terminal does not expect the network side to skip a dimension identifier with a smaller value. For example, directly start the identification from dimension 1, so that the terminal cannot determine whether there is still dimension 0, and thus cannot determine the space it is currently in.

[0110] In one implementation, the first cell discovery signal is used to indicate the configuration information of the first dimension, where the configuration information may include 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, and the height information of the coverage space of the first dimension. The first cell discovery signal received by the terminal can be used to indicate the dimension information of the target cell. For example, the dimension list included in the target cell and the number of dimensions included in the target cell may be indicated, and one or more of them may be indicated. For example, the first cell discovery signal may indicate the configuration information of the first dimension in one or more of the above implementation manners.

[0111] In one implementation, the method may further include the following steps:

[0112] Step 1, 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.

[0113] In this implementation, the measurement configuration sent by the network-side device to the terminal may include measurement parameters configured for each dimension of the target cell, where the measurement parameters may include at least one of the start time of measurement, the duration of the measurement window, and the period at which the measurement window appears. The terminal may perform measurements on the target cell and the neighboring cells of the target cell based on the measurement configuration including the above measurement parameters sent by the network-side device. For example, the terminal may measure the cell discovery signals of each dimension of the target cell.

[0114] Step 2, the terminal sends 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, and discovery signal strength.

[0115] After the terminal performs measurements on 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 may send a measurement report including the cell identifier, dimension identifier, beam identifier, and discovery signal strength to the network-side device according to the measurement results.

[0116] In an alternative implementation, 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 may further include: 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. In this implementation, when the terminal performs measurements on the target cell and the neighboring cells of the target cell, it can measure each dimension of the neighboring cell according to the dimension configuration information of the neighboring cell. For example, it can measure the cell discovery signals of each dimension of the neighboring cell.

[0117] Optionally, if there is a neighboring cell in the neighboring cell list broadcast by the network-side device that has no dimension configuration information, the terminal may default that the neighboring cell is a one-dimensional cell.

[0118] Optionally, the measurement configuration may further include a measurement event, which is used to indicate 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 further include a measurement event, and the measurement event can be used to indicate 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 stronger than beam y (the current serving beam) of dimension 0 by a dB (a can be 0, a positive number or a negative number), the terminal may be triggered to send a measurement report to the network-side device based on the measurement result.

[0119] In one 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:

[0120] (1) The same transmission period. Using the same transmission period for all discovery signal beams in the same dimension can enable the network-side device to use the same measurement period when performing discovery signal measurement configuration within the dimension.

[0121] (2) The same transmission power. Using the same transmission power for all discovery signal beams in the same dimension, with the same coverage range, can enable the terminal to receive the discovery signal beams of the same dimension and avoid interference.

[0122] (3) The same frequency grid. The protocol can define a corresponding relationship between the frequency grid where the cell discovery signal is located and the dimension serial number. After receiving the cell discovery signal, the terminal can determine the dimension identifier of the first dimension according to the target frequency grid used by the first cell discovery signal through the corresponding relationship between the frequency grid and the dimension identifier. Therefore, using the same frequency grid for all discovery signal beams in the same dimension can avoid the inability to accurately determine the dimension identifier of the first dimension.

[0123] (4) The target synchronization signal sequences used correspond to the same root sequence. The primary / secondary synchronization signals of the target synchronization signals 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 the 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.

[0124] (5) The target synchronization signal sequences used correspond to the same branch sequence of the same root sequence. The primary / secondary synchronization signals of the target synchronization signals of the first cell discovery signal in the same dimension are a set of sequences derived from different branches of the same root sequence. The corresponding branches of the first 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 branch sequence of the same root sequence.

[0125] 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 send the first cell discovery signal using the same parameters.

[0126] In the embodiments of this application, when the terminal detects a cell discovery signal beam, if multiple cell discovery signal beams are detected, the terminal can select the dimension to camp on according to the strongest discovery signal beam. That is to say, the above 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 signal strength of the cell discovery signal in the currently camped-on dimension is lower than the first threshold, it can measure other dimensions of the same cell. If it measures that the signal strength of at least one discovery signal beam in the second dimension of the same cell is higher than the second threshold, it camps on the second dimension.

[0127] In one implementation, the method may further include: 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. In this implementation, the network-side device can broadcast the first system message in the first dimension, and at least part of the transmission parameters of the cell discovery signal in the first dimension can be carried in the first system message. For example, when the terminal receives the above first cell discovery signal for the first time, it can parse the first cell discovery signal according to at least part of the transmission parameters carried in the first system message. When receiving the first cell discovery signal in the first dimension subsequently, it can receive the first cell discovery signal according to the at least part of the transmission parameters. For example, it receives the first cell discovery signal according to the transmission period and transmission power in at least part of the transmission parameters.

[0128] In the above implementation, optionally, at least part of the transmission parameters of the cell discovery signal in the first dimension includes at least one of the following:

[0129] Transmission period;

[0130] Transmission power;

[0131] Frequency grid;

[0132] Root sequence used;

[0133] Branch sequence of the root sequence used.

[0134] In practical applications, the terminal may move between various dimensions of the cell. The terminal can move from the coverage area of the first dimension of the target cell to the coverage area of the second dimension of the target cell. Therefore, in one implementation, the method may further include the following steps:

[0135] Step 1, after moving from the first dimension to the second dimension of the target cell, the terminal receives the second cell discovery signal or the second system message of the second dimension, where at least part of the transmission parameters of the cell discovery signal of the second dimension are carried in the second system message;

[0136] Step 2, based on the second discovery signal and the second system message, determine the configuration information of the discovery signal of the second dimension.

[0137] Through the above implementation, after the terminal moves to the second dimension of the target cell, the configuration information of the second dimension is determined. Furthermore, subsequent operations can be performed according to the configuration information of the second dimension. For example, the terminal can access the second dimension.

[0138] Through the technical solution provided by the embodiments of the present application, the terminal can receive the first cell discovery signal, and then obtain the configuration information of the first dimension where the terminal is located. Therefore, the terminal located in the multi-dimensional cell can not only obtain different cell dimension configurations, and then obtain excellent network access performance, but also reduce the increase in energy consumption costs, while avoiding the inter-frequency interference brought to neighboring cells, and avoiding the problem of service interruption caused by the frequent handover process brought by using multiple cells to cover multiple regions, and balancing the comprehensive requirements of cell coverage requirements, cell capacity, and network operation energy consumption.

[0139] Figure 4 A flowchart showing a method for transmitting a cell discovery signal in an embodiment of the present application. This method 400 can be executed by a network-side device. In other words, the method can be executed by software or hardware installed on the network-side device. As Figure 4 shown, the method may include the following steps.

[0140] S410: The network-side device determines at least one dimension included in the target cell.

[0141] In an embodiment of the present application, one of the at least one dimension corresponds to at least one of the following:

[0142] At least one sub-region of the target cell;

[0143] At least one subspace of the target cell;

[0144] At least one sub-cell of the target cell;

[0145] The coverage range of at least some of the multiple beams of the target cell;

[0146] A beam set, where the beam set includes the coverage range of at least some of the multiple beams of the target cell.

[0147] Wherein, the dimension in the embodiment of the present application is the same as the dimension in method 300. For specific details, reference can be made to the relevant description in method 300, which will not be elaborated here.

[0148] S412: The network-side device sends the cell discovery signals of each dimension respectively according to the discovery signal configuration parameters corresponding to each dimension.

[0149] In an embodiment of the present application, the network-side device can configure the discovery signal configuration parameters of different dimensions respectively.

[0150] In one implementation, the network-side device can indicate the configuration information of the dimension corresponding to the cell discovery signal to the terminal through one of the following:

[0151] (1) Information carried in the cell discovery signal. The network-side device can carry explicit configuration information in the cell discovery signal, and this identifier is used to indicate the configuration information of the cell dimension to which the cell discovery signal belongs. It can also carry parameters for determining the configuration information of the dimension corresponding to the cell discovery signal. For example, when the configuration information of the dimension includes a dimension identifier, the beam sequence number of the discovery signal beam corresponding to the cell discovery signal in the target cell, the maximum value of the number of discovery signal beams corresponding to one dimension, the number of dimensions of the target cell, etc. For specific details, reference can be made to the relevant description in the above method 300.

[0152] (2) The cell discovery signal includes a target synchronization signal sequence, where the target synchronization signal sequence includes one of the following: a primary synchronization signal sequence, a secondary synchronization signal sequence. The primary / secondary synchronization signal of the target synchronization signal of the cell discovery signal of one dimension is a set 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.

[0153] (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 serial number, and the network 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.

[0154] In an alternative implementation, after the network device determines at least one dimension included in the target cell, the method may further include: the network device configures the dimension identifiers of each of the dimensions according to a predetermined rule. The network device may configure the dimension identifiers of each dimension of the target cell according to a predetermined rule predefined by the protocol. For example, for Figure 2a the three-dimensional cell shown, the ground coverage dimension may be configured as dimension 0, and the dimension serial numbers above the ground increase according to the dimension height; for Figure 2b the heterogeneous multi-dimensional cell shown, the macro coverage dimension may be configured as dimension 0, and other micro coverage or pico coverage dimensions use larger dimension identifiers. For Figure 2c the multi-dimensional cell shown including multiple parallel dimensions, the network device may let the dimension with the largest coverage or the most services use dimension identifier 0, and other dimensions use larger dimension identifiers.

[0155] Optionally, after the network device determines at least one dimension included in the target cell, it may send the cell discovery signal beams of each dimension according to the discovery signal configuration parameters respectively configured for each dimension. In the embodiments of the present application, the discovery signal configuration parameters respectively configured for each dimension may be the same or not completely the same, specifically depending on the implementation of the network device.

[0156] In one implementation, the discovery signal configuration parameters include transmission parameters for sending the cell discovery signal of the dimension, and the transmission parameters may include one of the following:

[0157] Transmission period, used to indicate the transmission period of the cell synchronization signal;

[0158] Transmission power, used to indicate the transmission power of the cell synchronization signal;

[0159] Frequency grid configuration, used to indicate the frequency grid of the cell discovery signal beam;

[0160] Root sequence of the synchronization signal sequence, used to indicate the root sequence of the target synchronization sequence in the cell discovery signal;

[0161] Branch sequence of the root sequence of the synchronization signal sequence, used to indicate the branch of the root sequence of the target synchronization sequence in the cell discovery signal.

[0162] In the above implementation, when the network-side device configures the transmission parameters used for cell discovery signals in different dimensions, it can be configured according to one of the above five parameters, adapting to local conditions and configuring appropriate transmission parameters for it according to the actual situation, and selecting appropriate transmission cycle, transmission power and other parameters.

[0163] For example, when configuring the transmission parameter set of cell discovery signals in different dimensions of a three-dimensional multi-dimensional cell as shown in Figure 2a , the network-side device can arrange the transmission parameters of cell discovery signals in each dimension according to the service distribution, coverage requirements, power consumption, and interference control objectives of each dimension. For example, Dimension 1 provides indoor coverage. The moving speed indoors is low, and it is required that the cell discovery signal has strong penetration ability. A discovery signal beam with a large transmission power and a low transmission cycle can be provided; Dimension 2 is used to provide connections for aircraft. Based on the flight speed of the aircraft, a cell discovery signal with a short transmission cycle can be provided to speed up the measurement speed and beam tracking. At the same time, according to the height of the aircraft, the appropriate transmission power can be determined.

[0164] When configuring the transmission parameter set for a land-water multi-dimensional cell as shown in Figure 2b , the square dimension on the left needs to be able to provide connection services for a dense crowd, while the lake dimension on the right needs to provide basic coverage to facilitate the access of rowing tourists on the lake surface. Since the area on the right is large and the business is scarce, to save costs, the network-side device can provide cell discovery signal transmission with a large transmission cycle and high transmission power for the right dimension to cover the vast lake surface. For the left dimension, the network-side device can provide cell discovery signal transmission with a shorter transmission cycle, so that the cell measurement and beam tracking performance of the terminal is better and the experience of the dense crowd is improved.

[0165] For a heterogeneous multi-dimensional cell as shown in Figure 2c , the network-side device can determine the transmission parameters of the cell discovery signal for each dimension according to the corresponding coverage area, service distribution, and load. For the micro-coverage dimension with dense services, determine the cell discovery signal parameters according to the service characteristics of this area. For example, for the micro-coverage dimension at a road intersection, a cell discovery signal with a short transmission cycle is provided to improve beam tracking and provide fast neighbor cell measurement for passing vehicles to speed up the cell handover speed. For the micro-coverage dimension used to cover the shadow area with scarce services, a lower cell discovery signal is used to save the energy consumption of the base station and reduce the interference caused by cell discovery signal transmission under the condition of providing necessary coverage. The macro-coverage dimension can determine the transmission cycle of the cell discovery signal according to the typical service distribution in the coverage area. In addition, the macro-coverage dimension and the micro-coverage dimension can determine the respective transmission powers of the cell discovery signals according to the sizes of their respective coverage areas.

[0166] In one implementation manner, the network-side device sending the cell discovery signals of each of the dimensions according to the transmission parameter sets corresponding to the respective dimensions may include: the network-side device sending at least one cell discovery signal beam for each of the dimensions according to the transmission parameter sets corresponding to the respective dimensions. The network-side device may send at least one cell discovery signal beam for each dimension according to the transmission parameter sets (such as transmission period, transmission power) corresponding to each dimension configured in advance.

[0167] In an alternative implementation manner, at least one of the following is satisfied for the at least one cell discovery signal beam of the same dimension:

[0168] (1) The same transmission period. Using the same transmission period for at least one cell discovery signal beam of the same dimension can enable the network-side device to use the same measurement period when performing cell discovery signal measurement configuration within the dimension.

[0169] (2) The same transmission power. Using the same transmission power for at least one cell discovery signal beam of the same dimension, the transmission powers of different dimensions can be respectively indicated by the cell in the system message. The same transmission power means that the coverage ranges of at least one cell discovery signal beam are the same.

[0170] (3) The same frequency grid. The protocol may define a corresponding relationship between the frequency grid where the cell discovery signal is located and the dimension serial number. After receiving the cell discovery signal, the terminal can determine the dimension identifier of the dimension it is in. Therefore, using the same frequency grid for the cell discovery signals of the same dimension can prevent the terminal from being unable to accurately determine the dimension identifier.

[0171] (4) The target synchronization signal sequences used correspond to the same root sequence. The primary / secondary synchronization signals of the synchronization signal sequences of the cell discovery signals of the same dimension may be a set of sequences derived from the same root sequence. The root sequences of the cell discovery signals of different dimensions are different. Therefore, the synchronization signal sequences used by all the cell discovery signals of the same dimension need to correspond to the same root sequence.

[0172] (5) The target synchronization signal sequences used correspond 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 may be a set of sequences derived from different branches of the same root sequence. The branches corresponding to the first cell discovery signals of different dimensions are different. Therefore, the synchronization signal sequences used by the cell discovery signals of the same dimension correspond to the same branch sequence of the same root sequence.

[0173] In an alternative implementation, the cell discovery signal may be 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. The cell discovery signal beams sent by the network side device for each dimension may be used to indicate the configuration information of the dimension of the target cell. The configuration information of the dimension may be the dimension list included in the target cell, or the number of dimensions included in the target cell, or may also indicate the above information simultaneously. This embodiment does not make specific requirements.

[0174] In an alternative implementation, the method may further include: the network side device sends measurement configuration to the terminal, where 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 measurements, it may configure measurement parameters for each dimension of the target cell, including the start time of the measurement, the duration of the measurement window, and the period when the measurement window appears.

[0175] In an alternative implementation, the method may further include: the network side device broadcasts a list of neighboring cells, where the list of neighboring cells indicates the dimension configuration information of at least one neighboring cell. The network side device may broadcast a list of neighboring cells and indicate the dimension configuration information of at least one neighboring cell in the list of neighboring cells, so that the terminal can perform measurements on the target cell and the neighboring cells of the target cell. If the dimension configuration information of one of the neighboring cells is not indicated in the list of neighboring cells broadcast by the network side device, it is defaulted that the neighboring cell is a one-dimensional cell.

[0176] In an alternative implementation, the measurement configuration may further include a measurement event, and the measurement event is used to indicate 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 for measuring 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 stronger than beam y (the current serving beam) of dimension 0 by a dB (a may be 0, a positive number or a negative number), the terminal may be triggered to report the measurement to the network side device.

[0177] In one implementation, the method may further include: the network side device sending a 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. In this implementation, the network side device may send the system message corresponding to the dimension on each dimension of the target cell, and indicate 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.

[0178] In the method for sending a cell discovery signal provided by the embodiments of the present application, the network side device may determine at least one dimension included in the target cell; and then send the cell discovery signals of the respective dimensions according to the respective sets of transmission parameters configured for the respective dimensions. Through the multi-dimensional cell, differential discovery signal coverage is provided in different dimensions, and on the premise of providing services that match the characteristics of different regions and the size and shape of the coverage area, the cell measurement performance of some regions is optimized, the transmission energy consumption and interference of the discovery signals in some regions are reduced, etc., and at the same time, the frequent handover process caused by covering multiple regions with multiple cells is avoided.

[0179] In the method for obtaining cell dimension configuration information provided by the embodiments of the present application, the execution subject may be a device for obtaining cell dimension configuration information. In the embodiments of the present application, taking the device for obtaining cell dimension configuration information as an example to execute the method for obtaining cell dimension configuration information, the device for obtaining cell dimension configuration information provided by the embodiments of the present application is described.

[0180] Figure 5 FIG. shows a schematic structural diagram of a device for obtaining cell dimension configuration information provided by an exemplary embodiment of the present application, and the device can implement all or part of the content in the Figure 3 embodiment shown, as Figure 5 shown, the device 500 for obtaining cell dimension configuration information includes: a first transmission module 501 and an acquisition module 502.

[0181] In the embodiments 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 obtain configuration information of the first dimension where the terminal is located based on the received first cell discovery signal;

[0182] wherein, the first dimension is a dimension of the target cell, 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:

[0183] at least one sub-region of the target cell;

[0184] at least one subspace of the target cell;

[0185] At least one sub - cell of the target cell;

[0186] The coverage range of at least some of the multiple beams of the target cell;

[0187] A beam set, where the beam set includes the coverage range of at least some of the multiple beams of the target cell.

[0188] In an alternative implementation, the obtaining module 502 obtains the configuration information of the first dimension corresponding to the first cell discovery signal based on the received first cell discovery signal, including one of the following:

[0189] Based on the information carried in the first cell discovery signal, obtain the configuration information of the first dimension;

[0190] Based on the target synchronization signal sequence included in the first cell discovery signal, obtain the configuration information of the first dimension, where the target synchronization signal sequence includes one of the following: primary synchronization signal sequence, secondary synchronization signal sequence;

[0191] Based on the target frequency raster used by the first cell discovery signal, obtain the configuration information of the first dimension.

[0192] In an alternative implementation, 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:

[0193] Obtain the configuration information of the first dimension carried in the first cell discovery signal;

[0194] Obtain the target parameter carried in the first cell discovery signal, and obtain the configuration information of the first dimension according to the target parameter.

[0195] In an alternative implementation, the configuration information of the first dimension includes: the dimension identifier of the first dimension; the target parameter includes one of the following:

[0196] First indication information and target beam number, where the first indication information is used to indicate the maximum value of the number of discovery signal beams corresponding to one 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;

[0197] 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;

[0198] Second indication information and a target beam sequence number, where 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.

[0199] In an optional implementation manner, the configuration information of the first dimension includes: a dimension identifier of the first dimension; obtaining the dimension identifier of the first dimension based on a target synchronization signal sequence included in the first cell discovery signal includes one of the following:

[0200] Obtaining the dimension identifier of the first dimension according to a 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 of different dimensions of the target cell are different;

[0201] Obtaining the dimension identifier of the first dimension according to a 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 of different dimensions of the target cell belong to different branches of the same root sequence.

[0202] In an implementation manner, obtaining the configuration information of the first dimension based on the target frequency grid used by the first cell discovery signal includes:

[0203] Obtaining the configuration information of the first dimension corresponding to the target frequency grid according to the correspondence between the frequency grid and the dimension identifier.

[0204] In an optional implementation manner, the obtaining module 502 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.

[0205] In an optional implementation manner, 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: an identifier of the first dimension, a parameter for calculating the dimension identifier of the first dimension, a dimension list 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.

[0206] In an optional implementation manner, as Figure 5 shown, the apparatus may further include: a measurement module 503, configured to:

[0207] Perform 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;

[0208] 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, and discovery signal strength.

[0209] In an optional implementation, the acquisition module 502 is further configured to acquire 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.

[0210] In an optional implementation, the measurement configuration further includes a measurement event, which is used to instruct the terminal to measure the discovery signal strength between different dimensions of the target cell.

[0211] In an optional 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:

[0212] The same transmission period;

[0213] The same transmission power;

[0214] The same frequency grid;

[0215] The target synchronization signal sequences used correspond to the same root sequence;

[0216] The target synchronization signal sequences used correspond to the same branch sequence of the same root sequence.

[0217] In an optional implementation, the first transmission module 501 is further configured to receive a first system message, where the first system message carries at least part of the transmission parameters of the cell discovery signal of the first dimension.

[0218] In an optional implementation, the first transmission module 501 receives the first cell discovery signal, including:

[0219] Receive the first cell discovery signal according to at least part of the transmission parameters of the cell discovery signal of the first dimension.

[0220] In an optional implementation, at least part of the transmission parameters of the cell discovery signal of the first dimension includes at least one of the following:

[0221] Transmission period;

[0222] Transmission power;

[0223] Frequency grid;

[0224] Root sequence used;

[0225] Branch sequence of the root sequence used.

[0226] In an optional implementation, the first transmission module 501 is further configured 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, where at least part of the transmission parameters of the cell discovery signal of the second dimension are carried in the second system message; the acquisition module 502 is further configured to determine configuration information of the discovery signal of the second dimension based on the second discovery signal and the second system message.

[0227] The device for obtaining cell dimension configuration information in the embodiments of the present application may 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 may be a terminal or other devices other than the terminal. Exemplarily, the terminal may include, but is not limited to, the types of the terminal 11 listed above, and other devices may be a server, a Network Attached Storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0228] The device for obtaining cell dimension configuration information provided in the embodiments of the present application can implement Figure 3 each process implemented by the method embodiment and achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0229] For the method for sending a cell discovery signal provided in the embodiments of the present application, the execution subject may be a device for sending a cell discovery signal. In the embodiments of the present application, taking the device for sending a cell discovery signal to execute the method for obtaining cell dimension configuration information as an example, the device for sending a cell discovery signal provided in the embodiments of the present application is described.

[0230] Figure 6 FIG. shows a schematic structural diagram of a device for sending a cell discovery signal provided in an exemplary embodiment of the present application. The device can implement all or part of the content in the Figure 4 embodiment shown, as Figure 6 shown, the device 600 for sending a cell discovery signal includes: a determination module 601 and a second transmission module 602.

[0231] In the embodiments of the present application, the determination module 601 is configured to determine at least one dimension included in a target cell; the second transmission module 602 is configured to send cell discovery signals of each of the dimensions respectively according to the discovery signal configuration parameters of each of the dimensions;

[0232] Among them, the discovery signal configuration parameters in different dimensions are configured separately;

[0233] One of the at least one dimension corresponds to at least one of the following:

[0234] At least one sub-region of the target cell;

[0235] At least one subspace of the target cell;

[0236] At least one sub-cell of the target cell;

[0237] The coverage range of at least some of the multiple beams of the target cell;

[0238] A beam set, where the beam set includes the coverage range of at least some of the multiple beams of the target cell.

[0239] In an alternative implementation, the discovery signal configuration parameter of the dimension includes: a dimension identifier.

[0240] In an alternative implementation, the configuration information of the dimension corresponding to the cell discovery signal is indicated by one of the following:

[0241] The information carried in the cell discovery signal;

[0242] The cell discovery signal includes a target synchronization signal sequence, where the target synchronization signal sequence includes one of the following: a primary synchronization signal sequence, a secondary synchronization signal sequence;

[0243] The frequency grid used by the cell discovery signal.

[0244] In an alternative implementation, the determination module is further configured to configure the dimension identifier of the dimension according to a predetermined rule.

[0245] In an alternative implementation, the discovery signal configuration parameter includes a transmission parameter for transmitting the cell discovery signal of the dimension, and the transmission parameter includes at least one of the following:

[0246] Transmission period;

[0247] Transmission power;

[0248] Frequency grid configuration;

[0249] The root sequence of the synchronization signal sequence;

[0250] The branch sequence of the root sequence of the synchronization signal sequence.

[0251] In an alternative implementation, the second transmission module 602 transmits the cell discovery signal beam of the dimension according to the transmission signal configuration parameters corresponding to the dimension.

[0252] In an alternative implementation, at least one of the following is satisfied for the at least one cell discovery signal beam of the same dimension:

[0253] The same transmission period;

[0254] The same transmission power;

[0255] The same frequency grid;

[0256] The target synchronization signal sequences used correspond to the same root sequence;

[0257] The target synchronization signal sequences used correspond to the same branch sequence of the same root sequence.

[0258] In an alternative implementation, 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.

[0259] In an alternative 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.

[0260] In an alternative implementation, the second transmission module 602 is further configured to broadcast a neighbor cell list, where the neighbor cell list indicates the dimension configuration information of at least one neighbor cell.

[0261] In an alternative implementation, 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.

[0262] In an alternative implementation, the second transmission module 602 is further configured to send 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.

[0263] The acquisition device for cell dimension configuration information in the embodiments of the present application may 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 may be a terminal or other devices other than the terminal. Exemplarily, the terminal may include, but is not limited to, the types of the terminal 11 listed above, and other devices may be a server, a Network Attached Storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0264] The acquisition device for cell dimension configuration information provided in the embodiments of the present application can implement Figure 4 each process implemented by the method embodiments and achieve the same technical effects. To avoid repetition, details are not described herein again.

[0265] As Figure 7 shown, the embodiments of the present application further provide a communication device 700, including a processor 701 and a memory 702. A program or instruction that can run on the processor 701 is stored on the memory 702. For example, when the communication device 700 is a terminal, when the program or instruction is executed by the processor 701, each step of the method embodiment of the above method for acquiring cell dimension configuration information is implemented, and the same technical effects can be achieved. When the communication device 700 is a network-side device, when the program or instruction is executed by the processor 701, each step of the method embodiment of the above method for sending cell discovery signals is implemented, and the same technical effects can be achieved. To avoid repetition, details are not described herein again.

[0266] The embodiments of the present application further provide a terminal, including a processor and a communication interface. The communication interface is coupled to the processor, and the processor is configured to run a program or instruction to implement the steps in the method embodiment as Figure 3 shown. This terminal embodiment corresponds to the above terminal-side method embodiment. Each implementation process and implementation manner of the above method embodiment can be applied to this terminal embodiment, and the same technical effects can be achieved. Specifically, Figure 8 FIG. is a schematic hardware structure diagram of a terminal for implementing the embodiments of the present application.

[0267] The terminal 800 includes, but is not limited to, at least some components such as 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 a processor 810.

[0268] Those skilled in the art can understand that the terminal 800 may further include a power source (such as a battery) for powering each component. The power source can be logically connected to the processor 810 through a power management system, so as to realize functions such as management of charging, discharging, and power consumption management through the power management system. Figure 8 The terminal structure shown in Figure 8 does not limit the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0269] It should be understood that in the embodiments of the present application, the input unit 804 may include a Graphics Processing Unit (GPU) 8041 and a microphone 8042. The graphics processing unit 8041 processes the image data of static pictures or videos 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 at least one of a touch panel 8071 and 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. The 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 elaborated here.

[0270] In the embodiments of the present application, after the radio frequency unit 801 receives downlink data from the network side device, it can be transmitted to the processor 810 for processing; in addition, the radio frequency unit 801 can send uplink data to the network side device. Generally, 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, etc.

[0271] The memory 809 can be used to store software programs or instructions and various data. The memory 809 mainly includes a first storage area for storing programs or instructions and a second storage area for storing data. Among them, the first storage area can store an operating system, application programs or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 809 can include volatile memory or non-volatile memory. Among them, the non-volatile memory can 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 can be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDR SDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM), and a direct rambus random access memory (DRRAM). The memory 809 in the embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

[0272] The processor 810 may include one or more processing units; optionally, the processor 810 integrates an application processor and a modem processor. Among them, the application processor mainly processes operations related to the operating system, user interface, and application programs, etc., and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above modem processor may not be integrated into the processor 810.

[0273] Among them, the radio frequency unit 801 receives a first cell discovery signal;

[0274] The processor 810 is configured to obtain configuration information of the first dimension in which the terminal is located based on the received first cell discovery signal;

[0275] Among them, the first dimension is a dimension of a 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:

[0276] At least one sub-region of the target cell;

[0277] At least one subspace of the target cell;

[0278] At least one sub-cell of the target cell;

[0279] The coverage range of at least some of the multiple beams of the target cell;

[0280] A beam set, where the beam set includes the coverage range of at least some of the multiple beams of the target cell.

[0281] Optionally, the processor 810 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.

[0282] Optionally, the processor 810 is further configured to:

[0283] Perform 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;

[0284] Send 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, detected signal strength.

[0285] Optionally, the radio frequency unit 801 is further configured to: obtain 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.

[0286] It can be understood that the implementation processes of the various implementation manners mentioned in this embodiment can refer to the relevant descriptions of the method embodiments of the method for obtaining cell dimension configuration information, and achieve the same or corresponding technical effects. To avoid repetition, they will not be elaborated here.

[0287] This application embodiment further provides a network-side device, including a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to run a program or instruction to implement as Figure 4 shown in the steps of the method embodiment. This network-side device embodiment corresponds to the above network-side device method embodiment. The various implementation processes and implementation manners of the above method embodiment can all be applied to this network-side device embodiment, and can achieve the same technical effects.

[0288] Specifically, this application embodiment further provides a network-side device. As Figure 9As shown in the figure, 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. The antenna 901 is connected to the radio frequency device 902. In the uplink direction, the radio frequency device 902 receives information through the antenna 901 and sends the received information to the baseband device 903 for processing. In the downlink direction, the baseband device 903 processes the information to be sent and sends it to the radio frequency device 902. After processing the received information, the radio frequency device 902 sends it out through the antenna 901.

[0289] In the above embodiments, the method executed by the network-side device can be implemented in the baseband device 903, and the baseband device 903 includes a baseband processor.

[0290] The baseband device 903 may include, for example, at least one baseband board, and a plurality of chips are provided on the baseband board, such as Figure 9 As shown in the figure, one of the chips 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 operations of the network device shown in the above method embodiments.

[0291] The network-side device may further include a network interface 906, and the interface is, for example, a Common Public Radio Interface (CPRI).

[0292] Specifically, the network-side device 900 in the embodiments of the present application further includes: instructions or programs stored on the memory 905 and executable on the processor 904. The processor 904 calls the instructions or programs in the memory 905 to execute Figure 6 the methods executed by the modules shown in the figure and achieve the same technical effects. To avoid repetition, they are not described herein again.

[0293] The embodiments of the present application further provide a readable storage medium. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, each process of the method embodiment of the above method for obtaining cell dimension configuration information or each process of the method embodiment of the above method for sending cell discovery signals is implemented, and the same technical effects can be achieved. To avoid repetition, they are not described herein again.

[0294] Wherein, the processor is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disks, or optical discs. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0295] Another embodiment of the present application provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is configured to run programs or instructions to implement each process of the method embodiment of the above method for obtaining cell dimension configuration information, or implement each process of the method embodiment of the above method for sending cell discovery signals, and can achieve the same technical effects. To avoid repetition, details are not described here again.

[0296] It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, system chip, chip system, or system-on-chip.

[0297] Another embodiment of the present application 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 each process of the method embodiment of the above method for obtaining cell dimension configuration information, or implement each process of the method embodiment of the above method for sending cell discovery signals, and can achieve the same technical effects. To avoid repetition, details are not described here again.

[0298] The embodiments of the present application further provide a wireless communication system, including: a terminal and a network-side device. The terminal can be used to execute the steps of the above method for obtaining cell dimension configuration information, and the network-side device can be used to execute the steps of the above method for sending cell discovery signals.

[0299] It should be noted that in this document, the terms "include", "comprise" or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article or device including a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including that 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 a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted or combined. Additionally, the features described with reference to certain examples may be combined in other examples.

[0300] Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of a computer software product plus a necessary general hardware platform, and of course, can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions for causing a terminal or a network-side device to execute the methods described in various embodiments of the present application.

[0301] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms of embodiments without departing from the purpose of the present application and the scope protected by the claims. These embodiments are all within the protection scope of the present application.

Claims

1. A method for obtaining cell dimension configuration information, characterized in that, Including: The terminal receives a first cell discovery signal; Based on the received first cell discovery signal, the terminal obtains configuration information of a first dimension in which 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 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; Coverage ranges of at least some of multiple beams of the target cell; A beam set, where the beam set includes coverage ranges of at least some of multiple beams of the target cell.

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

3. The method according to claim 2, wherein Based on the information carried in the first cell discovery signal, the terminal obtains the configuration information of the first dimension, 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 a 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, characterized in that, The configuration information of the first dimension includes: a dimension identifier of the first dimension; the target parameter includes one of the following: First indication information and a target beam number, where the first indication information is used to indicate a 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 a beam number of the discovery signal beam corresponding to the first cell discovery signal in the target cell; A target beam number, where the target beam number is used to indicate a beam number of the discovery signal beam corresponding to the first cell discovery signal in the target cell; Second indication information and a 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 a 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, characterized in that, The configuration information of the first dimension includes: a dimension identifier of the first dimension; based on a target synchronization signal sequence included in the first cell discovery signal, the terminal obtains the dimension identifier of the first dimension, 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, characterized in that, 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, characterized in that, 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, characterized in that 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, characterized in that, 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, characterized in that, 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 sequences used correspond to the same branch sequence of the same root sequence.

13. The method according to any one of claims 1 to 12, characterized in that, 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, characterized in that, 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, characterized in that, 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, characterized in that, 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, characterized in that, Includes: The network-side device determines at least one dimension included in the target cell; The network-side device respectively sends 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, characterized in that, 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, characterized in that, 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, characterized in that, The discovery signal configuration parameters include transmission parameters for sending 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, characterized in that For any one of the dimensions, the network-side device sends the cell discovery signal beam 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 sequence used corresponds to the same branch sequence of the same root sequence.

24. The method according to any one of claims 17 to 23, characterized in that, 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, characterized in that, The method further includes: the network side device sending a 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, characterized in that, 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, characterized in that, 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, characterized in that, Including: A first transmission module, configured to receive a first cell discovery signal; An acquisition module, configured to acquire 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 one dimension of the 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, where the beam set includes the coverage range of at least part of the multiple beams of the target cell.

30. The device according to claim 29, characterized in that, The acquisition module acquiring 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: Acquiring the configuration information of the first dimension based on the information carried in the first cell discovery signal; Acquiring 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: a primary synchronization signal sequence, a secondary synchronization signal sequence; Acquiring the configuration information of the first dimension based on the target frequency grid used by the first cell discovery signal.

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

32. The device according to claim 30, characterized in that, The acquiring 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 device according to claim 30, characterized in that, 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 device according to any one of claims 29 to 33, characterized in that, 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, characterized in that Further included: A measurement module, configured to: Perform 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; 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 transmitting device for a cell discovery signal, characterized in that, Included: A determination module, configured to determine at least one dimension included in the target cell; A second transmission module, configured to respectively send the cell discovery signals of each dimension according to the discovery signal configuration parameters of each dimension; Wherein, the discovery signal configuration parameters of different dimensions are respectively configured; 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 device according to claim 36, characterized in that, Further included: A configuration module, configured to configure the dimension identifiers of each dimension according to a predetermined rule.

38. The device according to claim 36 or 37, characterized in that, The second transmission module sends the cell discovery signal beam of the dimension according to the transmission signal configuration parameters corresponding to the dimension.

39. A terminal, characterized in that, Including a processor and a memory, 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, characterized in that, Including a processor and a memory, 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 sending cell discovery signals according to any one of claims 17 to 28 are implemented.

41. A readable storage medium, characterized in that, The program or instruction is stored on the readable storage medium. When the program or instruction is executed by the processor, it implements the steps of the method for obtaining cell dimension configuration information according to any one of claims 1 to 16, or implements the steps of the method for sending cell discovery signals according to any one of claims 17 to 28.

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