Information acquisition method, device and terminal

Abstract

This application discloses an information acquisition method, apparatus, and terminal, belonging to the field of communication technology. The information acquisition method of this application includes: a terminal receiving a first synchronization signal / physical broadcast channel block (SSB) sent by a network-side device; wherein the first SSB includes at least one of the following: first indication information, used to indicate whether the frequency point of the first SSB supports co-frequency measurement and / or reselection; identification information of a second SSB; the frequency point of the second SSB; the first SSB and the second SSB correspond to the same cell, carrier, or transmitting site, and have different frequency points.

Description

Technical Field

[0001] This application belongs to the field of communication technology, specifically relating to an information acquisition method, device, and terminal. Background Technology

[0002] In 5G New Radio (NR), a terminal receives synchronization signal blocks, transmits uplink signals or receives downlink signals during random access procedures, receives system information and paging information, and performs radio resource management (RRM) measurements and reselection based on the cell defining synchronization signal / physical broadcast channel block (CD SSB) within the initial downlink BWP.

[0003] In related technologies, it is supported to configure an additional initial downlink bandwidth portion (initial DL BWP) for some terminals, such as low-capability (RedCap) user equipment (UE). The terminal can perform the above-mentioned transmission and reception behaviors in this additional BWP. This additional initial DL BWP includes a non-cell defining (NCD) SSB. The physical broadcast channel (PBCH) in this NCD SSB does not contain configuration information indicating the reception of system information. The terminal can perform cell measurement at the frequency location of the NCD SSB in this additional initial DL BWP.

[0004] The network can flexibly deploy the frequency locations and physical cell identifiers (PCIs) of CD SSB and NCD SSB; however, the network may not necessarily deploy adjacent cells at the frequency locations of CD SSB or NCD SSB, or the PCIs of CD SSB and NCD SSB may be different. As a result, the terminal cannot know the frequency or PCI of CD SSB and other information related to cell measurement and reselection, which affects the accuracy of cell measurement and increases reselection latency. Summary of the Invention

[0005] This application provides an information acquisition method, apparatus, and terminal that can solve the problem that the terminal cannot obtain information related to cell measurement and reselection, such as the frequency of CDSSB or PCI.

[0006] Firstly, an information acquisition method is provided for application in a terminal, the method comprising:

[0007] The terminal receives a first synchronization signal / physical broadcast channel block (SSB) sent by a network-side device; wherein the first SSB includes at least one of the following:

[0008] The first indication information is used to indicate whether the frequency point of the first SSB supports same-frequency measurement and / or reselection;

[0009] The identification information of the second SSB;

[0010] The frequency of the second SSB; the first SSB and the second SSB correspond to the same cell, carrier or transmitting site, but have different frequency points.

[0011] Secondly, an information acquisition device is provided for use in a terminal, the device comprising:

[0012] A receiving module is configured to receive a first synchronization signal / physical broadcast channel block (SSB) sent by a network-side device; wherein the first SSB includes at least one of the following:

[0013] The first indication information is used to indicate whether the frequency point of the first SSB supports same-frequency measurement and / or reselection;

[0014] The identification information of the second SSB;

[0015] The frequency of the second SSB; the first SSB and the second SSB correspond to the same cell, carrier or transmitting site, but have different frequency points.

[0016] Thirdly, a terminal is provided, the terminal including a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method described in the first aspect.

[0017] Fourthly, a terminal is provided, including a processor and a communication interface, wherein the communication interface is used to receive a first synchronization signal / physical broadcast channel block (SSB) sent by a network-side device; wherein the first SSB includes at least one of the following:

[0018] The first indication information is used to indicate whether the frequency point of the first SSB supports same-frequency measurement and / or reselection;

[0019] The identification information of the second SSB;

[0020] The frequency of the second SSB; the first SSB and the second SSB correspond to the same cell, carrier or transmitting site, but have different frequency points.

[0021] Fifthly, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect.

[0022] In a sixth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being used to run programs or instructions to implement the method as described in the first aspect.

[0023] In a seventh aspect, a computer program / program product is provided, the computer program / program product being stored in a non-transient storage medium, the computer program / program product being executed by at least one processor to perform the steps of the method as described in the first aspect.

[0024] In this embodiment, after the terminal receives the first SSB carrying the first indication information, the identification information of the second SSB, and / or the frequency point of the second SSB sent by the network-side device, it can learn the identification information and frequency point of the second SSB, as well as whether the frequency point of the first SSB supports co-frequency measurement and / or reselection, etc. This enables the terminal to clearly understand cell measurement and reselection behavior, thereby achieving fast cell measurement and reselection, improving the accuracy of cell measurement, and reducing reselection latency. Attached Figure Description

[0025] Figure 1 This diagram illustrates a structural diagram of a wireless communication system applicable to embodiments of this application;

[0026] Figure 2 This is one of the flowcharts illustrating the information acquisition method provided in the embodiments of this application;

[0027] Figure 3 This is one of the schematic diagrams showing the location of the frequency points of the CD SSB and NCD SSB of two different cells provided in the embodiments of this application;

[0028] Figure 4 This is the second schematic diagram showing the location of the frequency points of the CD SSB and NCD SSB of two different cells provided in the embodiments of this application;

[0029] Figure 5 This is the third schematic diagram showing the location of the frequency points of the CD SSB and NCD SSB of two different cells provided in the embodiments of this application;

[0030] Figure 6This is the fourth schematic diagram showing the location of the frequency points of the CD SSB and NCD SSB of two different cells provided in the embodiments of this application;

[0031] Figure 7 This is a schematic diagram of the structure of the information acquisition device provided in the embodiments of this application;

[0032] Figure 8 This is one of the structural schematic diagrams of the terminal provided in the embodiments of this application;

[0033] Figure 9 This is the second structural schematic diagram of the terminal provided in the embodiments of this application. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0035] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0036] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to applications other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0037] Figure 1This diagram illustrates a structural diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. In this context, terminal 11 can also be referred to as a terminal device or user equipment (UE). Terminal 11 can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR) / virtual reality (VR) device, robot, wearable device, vehicle-mounted device (VUE), pedestrian terminal (PUE), smart home (home devices with wireless communication functions, such as refrigerators, televisions, washing machines, or furniture), etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, game consoles, etc. It should be noted that the specific type of terminal 11 is not limited in this application embodiment. Network-side device 12 can be a base station or a core network. The base station can be referred to as a node B, evolved node B, access point, base transceiver station (BTS), radio base station, radio transceiver, basic service set (BSS), extended service set (ESS), B node, evolved B node (eNB), home B node, home evolved B node, WLAN access point, WiFi node, transmitting and receiving point (TRP), or any other suitable term in the field, 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 this application embodiment, only the base station in the NR system is used as an example, but the specific type of base station is not limited.

[0038] The information acquisition method provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0039] This application provides an information acquisition method that can be applied to scenarios where network-side devices support configuring additional initial DL BWPs for some terminals, such as RedCap UEs, and these additional initial DL BWPs include NCD SSBs. After receiving a first SSB sent by the network-side device, carrying first indication information, identification information of the second SSB, and / or the frequency point of the second SSB, the terminal can learn about the identification information and frequency point of the second SSB, as well as whether the frequency point of the first SSB supports co-frequency measurement and / or cell reselection, etc. This enables the terminal to clearly understand cell measurement and reselection behavior, thereby achieving fast cell measurement and reselection, improving the accuracy of cell measurement, and reducing reselection latency.

[0040] It should be noted that, in the embodiments of this application, the second SSB includes the CD SSB in the initial DL BWP (hereinafter referred to as the second initial downlink BWP) in the related technology, while the first SSB includes the NCD SSB in the additionally configured initial DL BWP (hereinafter referred to as the first initial downlink BWP). That is, the PBCH in the second SSB includes configuration information indicating the reception of system information, while the PBCH in the first SSB does not include configuration information indicating the reception of system information.

[0041] Figure 2 This is one of the flowcharts illustrating the information acquisition method provided in the embodiments of this application, such as... Figure 2 As shown, the method includes:

[0042] Step 201: The terminal receives a first SSB sent by the network-side device; wherein the first SSB includes at least one of the following:

[0043] a) First indication information, used to indicate whether the frequency point of the first SSB supports co-frequency measurement and / or reselection;

[0044] b) Identification information of the second SSB;

[0045] c) The frequency of the second SSB; the first SSB and the second SSB correspond to the same cell, carrier or transmitting site, and have different frequency points.

[0046] It should be noted that the embodiments of this application can be applied to scenarios where network-side equipment supports configuring additional initial DL BWPs for some terminals, such as RedCap UEs, and these additional initial DL BWPs include NCD SSBs. Terminals include, but are not limited to, the types of terminals 11 listed above; network-side equipment includes, but is not limited to, the types of network-side equipment 12 listed above. In the embodiments of this application, the first SSB and the second SSB may correspond to the same cell, the same carrier, or the same transmitting site. This application does not limit these possibilities; the following description uses the example of the first SSB and the second SSB corresponding to the same cell.

[0047] Optionally, the identification information of the second SSB may include: PCI or Cell Identifier (CellID). The second SSB includes a CD SSB, and the first SSB includes an NCD SSB. In particular, the first SSB and the sync raster may have different frequency points; the frequency point of the SSB refers to the center frequency position of the SSB's bandwidth, while the sync raster is the center frequency position of the bandwidth of a predefined SSB that can be used for CD SSB transmission.

[0048] In practice, the transmitting site may include, but is not limited to, the types of terminal 11 listed above, such as Node B, Evolved Node B, Access Point, BTS, Radio Base Station, Radio Transceiver, BSS, ESS, B Node, eNB, Home B Node, Home Evolved B Node, WLAN Access Point, and TRP, etc.

[0049] In the information acquisition method provided in this application embodiment, in a scenario where the network-side device supports configuring additional initial DL BWPs for some terminals, such as RedCap UEs, and the additional initial DL BWP includes an NCD SSB, the network-side device sends a first SSB carrying first indication information, identification information of the second SSB, and / or the frequency point of the second SSB to the terminal. This allows the terminal to know the identification information and frequency point of the second SSB, as well as whether the frequency point of the first SSB supports co-frequency measurement and / or reselection, etc. This enables the terminal to clearly understand cell measurement and reselection behavior, thereby achieving fast cell measurement and reselection, improving the accuracy of cell measurement, and reducing reselection latency.

[0050] Optionally, the first SSB provided in this application embodiment may include, in addition to: first indication information, identification information of the second SSB, and / or the frequency point of the second SSB, at least one of the following d), e), and f):

[0051] d) Correction information, used to correct cell measurement results;

[0052] Specifically, the correction information includes at least one of the following: the difference in transmission power between the first SSB and the second SSB; and time synchronization information between the first SSB and the second SSB. For example, the time synchronization information between the first SSB and the second SSB includes: the error in the transmission time of the first SSB and the second SSB.

[0053] e) Second indication information, used to indicate whether the first SSB and the second SSB are quasi-co-located.

[0054] Specifically, the quasi-co-location parameters include at least one of the following: Doppler shift, Doppler spread, average delay, delay spread, spatial RX parameters, and average gain.

[0055] In practice, when the first SSB includes second indication information, and the second indication information indicates that the first SSB and the second SSB are quasi-co-located, the terminal can perform cell measurement at the frequency of either the first SSB or the second SSB, and perform cell reselection based on the measurement results. Preferably, filtering can be performed between measurement results from different frequencies, and cell reselection can be performed based on the filtered measurement results.

[0056] f) Third indication information, used to indicate whether the cell corresponding to the first SSB supports the terminal;

[0057] Specifically, in this application embodiment, whether the cell corresponding to the first SSB supports the terminal refers to whether the cell corresponding to the first SSB allows the terminal to camp or access. When the third indication information indicates that the cell corresponding to the first SSB does not support the terminal, the terminal does not perform cell measurements at the frequency of the first SSB, avoiding invalid measurements and improving the accuracy of cell measurements. In this application embodiment, the terminal may include a RedCap UE; in practice, for RedCap UEs, due to their lower capabilities, network-side equipment often requires more overhead to serve these terminals. Network-side equipment can choose to prohibit the access or camping of such terminals in some cells to improve network resource utilization. A RedCap UE may include at least one of the following:

[0058] 1) RedCap UEs that support 1 receive antenna, such as 1 receive antenna (1rx) RedCap UE;

[0059] 2) RedCap UEs that support 2 receive antennas, such as 2rx RedCap UE;

[0060] 3) The maximum supported bandwidth capability does not exceed the target bandwidth of the Redcap UE; the target bandwidth is such as 20MHz or 100MHz;

[0061] 4) Redcap UEs that only support half-duplex mode in the Frequency Division Duplex (FDD) band;

[0062] 5) RedCap UE with a maximum modulation order of 16QAM, 64QAM or 256QAM.

[0063] Figure 3 This is one of the schematic diagrams showing the location of the frequency points of the CD SSB and NCD SSB of two different cells provided in the embodiments of this application. Figure 4 This is the second schematic diagram showing the location of the frequency points of the CD SSB and NCD SSB of two different cells provided in the embodiments of this application. Figure 5 This is the third schematic diagram showing the location of the frequency points of the CD SSB and NCD SSB of two different cells provided in the embodiments of this application. Figure 6 This is the fourth schematic diagram showing the location of the frequency points of the CD SSB and NCDSSB of two different cells provided in this application embodiment; in this application embodiment, the serving cell of the terminal is, for example, cell 1, and the cell corresponding to the second SSB is, for example, cell 2. Figures 3-6 The neighboring cell shown is (let's assume it's cell 2). The following section combines... Figures 3-6 The different positional relationships of the frequency points of the CD SSB and NCD SSB of two different cells are shown to illustrate the embodiments of this application.

[0064] 1. When the network-side device configures a first initial downlink BWP, and the first initial downlink BWP includes a first SSB, the first SSB is an NCD-SSB, and the first SSB includes first indication information, after receiving the first SSB sent by the network-side device, the terminal performs at least one of the following operations:

[0065] a) When the first indication information indicates that the frequency point of the first SSB supports co-frequency measurement and / or cell reselection, the terminal performs cell measurement at the frequency point of the first SSB.

[0066] b) If the first indication information indicates that the frequency of the first SSB does not support co-frequency measurement and / or reselection, the terminal performs cell measurement at the frequency of the second SSB.

[0067] Specifically, the first indication information can be indicated through the PBCH in the first SSB.

[0068] If the PBCH indicates the frequency of the first SSB, i.e. the frequency of the first SSB, can be reselected at the same frequency, then the terminal performs intra-frequency measurement at the frequency of the first SSB.

[0069] like Figure 3 As shown, network-side equipment transmits SSBs for multiple cells at the same frequency location. In this case, the terminal can perform co-frequency measurements at the frequency point of the first SSB. When the terminal measures the serving cell and other cells, it can perform cell reselection based on the co-frequency measurement results. Therefore, the network-side equipment can indicate in the PBCH of the first SSB that the frequency point of the first SSB supports co-frequency measurement and / or cell reselection.

[0070] If the PBCH indicates that the frequency of the first SSB cannot be reselected at the same frequency, the terminal will perform the measurement at the frequency of the second SSB.

[0071] like Figure 5 and Figure 6 As shown, if the network-side device does not transmit SSBs of other cells on the frequency point of the serving cell's NCD SSB, the terminal cannot measure the SSBs of other cells on the frequency point of the serving cell's NCD SSB, and therefore cannot reselect to another cell based on the measurement at that frequency point. In this case, the network-side device can indicate in the PBCH of the first SSB that the frequency point of the first SSB does not support co-frequency measurement and / or reselection. At this time, the terminal needs to return to the frequency of the second SSB to perform measurement and perform co-frequency reselection based on the measurement result. Optionally, the frequency point of the first SSB (NCD-SSB) is not at the frequency position corresponding to the sync raster.

[0072] 2. When the network-side device configures a first initial downlink BWP, and the first initial downlink BWP includes a first SSB, the first SSB is an NCD-SSB, and the first SSB includes the identification information of a second SSB and / or the frequency point of the second SSB, after receiving the first SSB sent by the network-side device, the terminal performs at least one of the following operations:

[0073] 1) The terminal receives the second SSB based on the identification information of the second SSB and the frequency point of the CD SSB of the serving cell.

[0074] Specifically, in a scenario where the first SSB and the second SSB have different identification information, and the second SSB and the CD SSB of the serving cell of the terminal have the same frequency, when the terminal detects the identification information of the first SSB and the first SSB includes the identification information of the second SSB, the terminal receives the second SSB based on the identification information of the second SSB and the frequency of the CD SSB of the serving cell, and reselects the cell corresponding to the second SSB based on the system information corresponding to the second SSB.

[0075] In such Figure 3 In the network deployment scenario shown, if the PCIs of the first SSB and the second SSB of neighboring cells are different, when the terminal detects the PCI of the NCD-SSB of cell 2, it cannot find an SSB with the same PCI at the frequency point of the CD SSB of cell 1 and reselect. To solve this problem, in this embodiment, the network-side device can indicate the Cell ID information of cell 2 in the PBCH of the first SSB. Then the terminal can detect and measure the CD-SSB of cell 2 at the frequency point of the CD SSB of cell 1 and reselect cell 2 based on the CD-SSB of cell 2.

[0076] like Figure 3 As shown, if the network-side device also transmits CD-SSBs of other cells at the frequency of CD-SSB in cell 1 (the cell currently camped, before reselection), then the terminal can directly measure the CD-SSB of cell 2 at the frequency of CD-SSB in cell 1 and reselect / camp to cell 2; at this time, the network-side device does not need to additionally indicate the frequency of CD-SSB of cell 1 in the PBCH of the first SSB.

[0077] 2) The terminal receives the second SSB based on the identification information of the second SSB and the frequency point of the second SSB.

[0078] Specifically, in a scenario where the first SSB and the second SSB have different identification information, and the second SSB and the CD SSB of the serving cell have different frequency points, when the terminal detects the identification information of the first SSB, and the measurement information includes the identification information and frequency point of the second SSB, the terminal receives the second SSB based on the identification information and frequency point of the second SSB, and reselects to the cell corresponding to the second SSB based on the system information corresponding to the second SSB.

[0079] In such Figure 4In the network deployment scenario shown, if the PCIs of the first SSB and the second SSB of neighboring cells are different, and the network-side device does not transmit the CD-SSB of cell 2 at the frequency of the CD-SSB of cell 1, then the terminal cannot detect and measure the CD-SSB of cell 2 at the frequency of the CD-SSB of cell 1, and therefore the terminal cannot complete the reselection to cell 2. To solve this problem, in this embodiment, the network-side device can indicate the Cell ID of cell 2 and the frequency of the CD-SSB of cell 2 in the PBCH of the first SSB. The terminal can detect the CD-SSB of cell 2 based on the Cell ID information and the frequency of the CD-SSB of cell 2, and complete the reselection to the target cell.

[0080] 3) The terminal receives the second SSB based on the identification information of the first SSB and the frequency point of the second SSB.

[0081] Specifically, in a scenario where the first SSB and the second SSB have the same identification information, when the terminal detects the identification information of the first SSB and the measurement information includes the frequency point of the second SSB, the terminal receives the second SSB based on the identification information of the first SSB and the frequency point of the second SSB, and reselects to the cell corresponding to the second SSB based on the system information corresponding to the second SSB.

[0082] In such Figure 4 In the network deployment scenario shown, if the PCI of the second SSB and the first SSB of cell 2 are the same, then the network-side device only needs to indicate the frequency of the CD-SSB of cell 2 in the first SSB, without needing to additionally indicate the identification information of the first SSB. The terminal detects the second SSB with the same PCI as the first SSB based on the frequency of the CD-SSB of cell 2, and reselects to cell 2 based on the second SSB.

[0083] Optionally, if the network-side device configures a first initial downlink BWP, and the first initial downlink BWP includes a first SSB, the first SSB being an NCD-SSB, and the first SSB including correction information, then after receiving the first SSB sent by the network-side device, the terminal performs at least one of the following operations:

[0084] a) If the correction information includes the difference in transmission power between the first SSB and the second SSB, the terminal corrects the cell measurement results based on the difference;

[0085] Specifically, the network-side device can indicate the difference in transmission power between the first SSB and the second SSB in the first SSB. The terminal adjusts the measurement result of the first SSB based on this difference. For example, if the transmission power of the first SSB is 3dB lower than that of the second SSB, the terminal compensates for the measurement result of the first SSB by 3dB. The measurement result may include at least one of the following: Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), Received Signal Strength Indication (RSSI), and Signal-to-Interference Noise Ratio (SINR).

[0086] (b) If the correction information includes time synchronization information of the first SSB and the second SSB, the terminal receives the second SSB based on the time synchronization information.

[0087] Specifically, the second SSB belongs to the same cell, carrier, or transmission point as the first SSB. The time synchronization information between the first and second SSBs includes the error or offset value between their transmission times. For example, the time synchronization information can be an offset in units of symbols, time slots, subframes, half-frames, or radio frames. The terminal receives the second SSB based on the time synchronization information and, after receiving the system information corresponding to the second SSB, completes the reselection.

[0088] Optionally, the identification information of the second SSB in this embodiment includes at least one of the following:

[0089] 1) The first X bits or the last X bits of the target identifier; wherein, the target identifier is the identifier of the cell corresponding to the second SSB.

[0090] Specifically, the identifier of the cell corresponding to the second SSB may include the PCI or Cell ID of the cell corresponding to the second SSB.

[0091] 2) First identifier, which is a parameter generated based on target identifier; wherein, the target identifier is the identifier of the cell corresponding to the second SSB.

[0092] Specifically, the first identifier is calculated using any one of formulas (1)-(4):

[0093] Z = mod(Cell ID, Y) (1)

[0094] Z = ceil(Cell ID / Y) (2)

[0095] Z = floor(Cell ID / Y) (3)

[0096] Z = round(Cell ID / Y) (4)

[0097] Wherein, Z represents the first identifier, the Cell ID represents the target identifier, and Y is a configuration parameter.

[0098] 3) Second identifier, which is a parameter generated based on the target identifier and the synchronization signal sequence in the second SSB; wherein the target identifier is the identifier of the cell corresponding to the second SSB.

[0099] Specifically, the second identifier is calculated using formula (5):

[0100]

[0101] Wherein, the second identifier is or The The target identifier is indicated by the The parameters are generated based on the auxiliary synchronization signal SSS sequence in the second SSB. These are parameters generated based on the master synchronization signal PSS sequence in the second SSB.

[0102] In this embodiment, the network-side device indicates the PCI and / or frequency point of the CD SSB via the PBCH in the NCD SSB. Based on the PCI and / or frequency point of the CD SSB, the terminal quickly measures or reselects to the target cell corresponding to the indication. Here, the CD SSB and NCD SSB correspond to the same cell, carrier, or transmitting site. This enables the terminal to determine the measurement frequency based on the indication from the network-side device, and, if a reselection is required, to more quickly reselect to a new serving cell based on the information indicated by the network-side device.

[0103] It should be noted that the information acquisition method provided in this application embodiment can be executed by an information acquisition device, or by a control module within the information acquisition device for executing the information acquisition method. This application embodiment uses the execution of the information acquisition method by an information acquisition device as an example to illustrate the information acquisition device provided in this application embodiment.

[0104] Figure 7 This is a schematic diagram of the structure of the information acquisition device provided in the embodiments of this application, such as... Figure 7 As shown, the information acquisition device 700, applied to a terminal, includes:

[0105] The first receiving module 701 is configured to receive a first SSB sent by a network-side device; wherein the first SSB includes at least one of the following:

[0106] The first indication information is used to indicate whether the frequency point of the first SSB supports co-frequency measurement and / or reselection;

[0107] The identification information of the second SSB;

[0108] The frequency of the second SSB; the first SSB and the second SSB correspond to the same cell, carrier or transmitting site, but have different frequency points.

[0109] The information acquisition device provided in this application embodiment, after receiving a first SSB carrying first indication information, identification information of the second SSB and / or the frequency point of the second SSB sent by the network-side device, can know the identification information and frequency point of the second SSB, as well as whether the frequency point of the first SSB supports co-frequency measurement and / or reselection and other related information, so that the terminal can clearly understand the cell measurement and reselection behavior, thereby realizing fast cell measurement and reselection, improving the accuracy of cell measurement and reducing reselection latency.

[0110] Optionally, the first SSB further includes at least one of the following:

[0111] Correction information, used to correct the cell measurement results;

[0112] The second indication information is used to indicate whether the first SSB and the second SSB are quasi-co-located;

[0113] The third indication information is used to indicate whether the cell corresponding to the first SSB supports the terminal.

[0114] Optionally, the correction information includes at least one of the following:

[0115] The difference in transmission power between the first SSB and the second SSB;

[0116] Time synchronization information between the first SSB and the second SSB.

[0117] Optionally, the second SSB includes a CD SSB; the first SSB includes an NCD SSB.

[0118] Optionally, the first SSB and the sync raster have different frequency points.

[0119] Optionally, the apparatus further includes: a measurement module, configured to perform cell measurement at the frequency of the first SSB when the first indication information indicates that the frequency of the first SSB supports co-frequency measurement and / or cell reselection; or,

[0120] If the first indication information indicates that the frequency of the first SSB does not support co-frequency measurement and / or reselection, cell measurement shall be performed at the frequency of the second SSB.

[0121] Optionally, the apparatus further includes: a second receiving module, configured to perform at least one of the following:

[0122] Based on the identification information of the second SSB and the frequency point of the CD SSB of the serving cell, the second SSB is received;

[0123] Based on the identification information and frequency point of the second SSB, the second SSB is received;

[0124] Based on the identification information of the first SSB and the frequency point of the second SSB, the second SSB is received.

[0125] Optionally, the device further includes:

[0126] The first correction module is used to correct the cell measurement results based on the difference in transmission power between the first SSB and the second SSB when the correction information includes the difference in transmission power between the first SSB and the second SSB.

[0127] Optionally, the device further includes:

[0128] The second correction module is used to receive the second SSB based on the time synchronization information when the correction information includes time synchronization information of the first SSB and the second SSB.

[0129] Optionally, the identification information of the second SSB includes at least one of the following:

[0130] The first X bits or the last X bits of the target identifier;

[0131] A first identifier, wherein the first identifier is a parameter generated based on the target identifier;

[0132] The second identifier is a parameter generated based on the target identifier and the synchronization signal sequence in the second SSB;

[0133] The target identifier is the identifier of the cell corresponding to the second SSB.

[0134] Optionally, the terminal includes a RedCap UE.

[0135] Optionally, the RedCap UE includes at least one of the following:

[0136] Supports RedCap UE with 1 receive antenna;

[0137] Supports RedCap UE with 2 receive antennas;

[0138] The maximum supported bandwidth capacity does not exceed the target bandwidth of the Redcap UE;

[0139] Redcap UEs only support half-duplex mode in the FDD band.

[0140] Optionally, the parameters of the quasi-co-location include at least one of the following: Doppler offset, Doppler spread, average delay, delay spread, spatial reception parameters, and average gain.

[0141] The information acquisition device in this application embodiment can be a device, a device or electronic device with an operating system, or a component, integrated circuit, or chip in a terminal. The device or electronic device can be a mobile terminal or a non-mobile terminal. For example, a mobile terminal can include, but is not limited to, the types of terminals 11 listed above, while a non-mobile terminal can be a server, network attached storage (NAS), personal computer (PC), television (TV), ATM, or self-service machine, etc. This application embodiment does not impose specific limitations.

[0142] The information acquisition device provided in this application embodiment can achieve... Figures 1 to 6 The various processes implemented by the method embodiment achieve the same technical effect and are not described here again to avoid repetition.

[0143] Figure 8 This is one of the structural schematic diagrams of the terminal provided in the embodiments of this application; such as Figure 8 As shown, the terminal 800 provided in this application embodiment includes a processor 801, a memory 802, and a program or instruction stored in the memory 802 that can run on the processor 801. When the program or instruction is executed by the processor 801, it implements the various processes of the above-described information acquisition method embodiment and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0144] This application embodiment also provides a terminal, including a processor and a communication interface; wherein the communication interface is used to: receive a first SSB sent by a network-side device; wherein the first SSB includes at least one of the following:

[0145] The first indication information is used to indicate whether the frequency point of the first SSB supports co-frequency measurement and / or reselection;

[0146] The identification information of the second SSB;

[0147] The frequency of the second SSB; the first SSB and the second SSB correspond to the same cell, carrier or transmitting site, but have different frequency points.

[0148] This terminal embodiment corresponds to the above-described terminal-side method embodiment. All implementation processes and methods of the above-described method embodiment can be applied to this terminal embodiment and can achieve the same technical effect.

[0149] Figure 9 This is a second schematic diagram of the terminal structure provided in the embodiments of this application; as shown Figure 9 As shown, the terminal 900 includes, but is not limited to, at least some of the following components: radio frequency unit 901, network module 902, audio output unit 903, input unit 904, sensor 905, display unit 906, user input unit 907, interface unit 908, memory 909, and processor 910.

[0150] Those skilled in the art will understand that the terminal 900 may also include a power supply (such as a battery) for powering various components. The power supply can be logically connected to the processor 910 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. (Figure) 9 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0151] It should be understood that, in this embodiment, the input unit 904 may include a graphics processing unit (GPU) 9041 and a microphone 9042. The GPU 9041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 906 may include a display panel 9061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 907 includes a touch panel 9071 and other input devices 9072. The touch panel 9071 is also called a touch screen. The touch panel 9071 may include a touch detection device and a touch controller. Other input devices 9072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0152] In this embodiment, the radio frequency unit 901 receives downlink data from the network-side device and processes it for the processor 910; additionally, it sends uplink data to the network-side device. Typically, the radio frequency unit 901 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0153] The memory 909 can be used to store software programs or instructions and various data. The memory 909 may primarily include a program or instruction storage area and a data storage area. The program or instruction storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 909 may include high-speed random access memory and non-volatile memory, which may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. For example, at least one disk storage device, flash memory device, or other non-volatile solid-state storage device.

[0154] Processor 910 may include one or more processing units; optionally, processor 910 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operating system, user interface, and applications or instructions, and the modem processor mainly handles wireless communication, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 910.

[0155] The radio frequency unit 901 is used to receive a first SSB sent by the network-side device; wherein the first SSB includes at least one of the following:

[0156] The first indication information is used to indicate whether the frequency point of the first SSB supports same-frequency measurement and / or reselection;

[0157] The identification information of the second SSB;

[0158] The frequency of the second SSB; the first SSB and the second SSB correspond to the same cell, carrier or transmitting site, but have different frequency points.

[0159] The terminal provided in this application embodiment, after receiving a first SSB carrying first indication information, identification information of the second SSB, and / or the frequency point of the second SSB sent by the network-side device, can know the identification information and frequency point of the second SSB, as well as whether the frequency point of the first SSB supports co-frequency measurement and / or reselection, etc., so that the terminal can clearly understand cell measurement and reselection behavior, thereby realizing fast cell measurement and reselection, improving the accuracy of cell measurement, and reducing reselection latency.

[0160] Optionally, the first SSB further includes at least one of the following:

[0161] Correction information, used to correct the cell measurement results;

[0162] The second indication information is used to indicate whether the first SSB and the second SSB are quasi-co-located;

[0163] The third indication information is used to indicate whether the cell corresponding to the first SSB supports the terminal.

[0164] Optionally, the correction information includes at least one of the following:

[0165] The difference in transmission power between the first SSB and the second SSB;

[0166] Time synchronization information between the first SSB and the second SSB.

[0167] Optionally, the second SSB includes a cell definition (CD) SSB; the first SSB includes a non-cell definition (NCDS) SSB.

[0168] Optionally, the first SSB has a different frequency point from the sync raster.

[0169] Optionally, the radio frequency unit 901 is further configured to, when the first indication information indicates that the frequency point of the first SSB supports co-frequency measurement and / or cell reselection, have the terminal perform cell measurement at the frequency point of the first SSB; or,

[0170] If the first indication information indicates that the frequency of the first SSB does not support co-frequency measurement and / or reselection, cell measurement shall be performed at the frequency of the second SSB.

[0171] Optionally, the processor 910 is also configured to perform at least one of the following:

[0172] Based on the identification information of the second SSB and the frequency point of the CD SSB of the serving cell, the second SSB is received;

[0173] Based on the identification information and frequency point of the second SSB, the second SSB is received;

[0174] Based on the identification information of the first SSB and the frequency point of the second SSB, the second SSB is received.

[0175] Optionally, the processor 910 is further configured to correct the cell measurement results based on the difference in transmission power between the first SSB and the second SSB if the correction information includes the difference in transmission power between the first SSB and the second SSB.

[0176] Optionally, the processor 910 is further configured to receive the second SSB based on the time synchronization information if the correction information includes time synchronization information of the first SSB and the second SSB.

[0177] Optionally, the identification information of the second SSB includes at least one of the following:

[0178] The first X bits or the last X bits of the target identifier;

[0179] A first identifier, wherein the first identifier is a parameter generated based on the target identifier;

[0180] The second identifier is a parameter generated based on the target identifier and the synchronization signal sequence in the second SSB;

[0181] The target identifier is the identifier of the cell corresponding to the second SSB.

[0182] Optionally, the terminal includes a RedCap UE.

[0183] Optionally, the RedCap UE includes at least one of the following:

[0184] Supports RedCap UE with 1 receive antenna;

[0185] Supports RedCap UE with 2 receive antennas;

[0186] The maximum supported bandwidth capacity does not exceed the target bandwidth of the Redcap UE;

[0187] Redcap UEs only support half-duplex mode in the FDD band.

[0188] Optionally, the parameters of the quasi-co-location include at least one of the following: Doppler offset, Doppler spread, average delay, delay spread, spatial reception parameters, and average gain.

[0189] This application also provides a readable storage medium, which can be volatile or non-volatile. The readable storage medium stores a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described information acquisition method embodiments and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0190] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0191] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described information acquisition method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0192] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0193] This application also provides a computer program / program product, which is stored in a non-transient storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the above-described information acquisition method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0194] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0195] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0196] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An information acquisition method, characterized in that, include: The terminal receives a first synchronization signal / physical broadcast channel block (SSB) sent by a network-side device; wherein the first SSB includes at least one of the following: The first indication information is used to indicate whether the frequency point of the first SSB supports same-frequency measurement and / or reselection; The identification information of the second SSB; The frequency of the second SSB; the first SSB and the second SSB correspond to the same cell, carrier or transmitting site, but have different frequency points.

2. The information acquisition method according to claim 1, characterized in that, The first SSB also includes at least one of the following: Correction information, used to correct the cell measurement results; The second indication information is used to indicate whether the first SSB and the second SSB are quasi-co-located; The third indication information is used to indicate whether the cell corresponding to the first SSB supports the terminal.

3. The information acquisition method according to claim 2, characterized in that, The correction information includes at least one of the following: The difference in transmission power between the first SSB and the second SSB; Time synchronization information between the first SSB and the second SSB.

4. The information acquisition method according to claim 1, characterized in that, The second SSB includes a cell definition (CDSSB); the first SSB includes a non-cell definition (NCD SSB).

5. The information acquisition method according to claim 1, characterized in that, The first SSB has a different frequency point from the sync raster.

6. The information acquisition method according to claim 1, characterized in that, After the terminal receives the first synchronization signal / physical broadcast channel block (SSB) sent by the network-side device, the method further includes at least one of the following: When the first indication information indicates that the frequency point of the first SSB supports co-frequency measurement and / or cell reselection, the terminal performs cell measurement at the frequency point of the first SSB. If the first indication information indicates that the frequency point of the first SSB does not support co-frequency measurement and / or cell reselection, the terminal performs cell measurement on the frequency point of the second SSB.

7. The information acquisition method according to claim 1, characterized in that, After the terminal receives the first synchronization signal / physical broadcast channel block (SSB) sent by the network-side device, the method further includes at least one of the following: The terminal receives the second SSB based on the identification information of the second SSB and the frequency point of the CD SSB of the serving cell; The terminal receives the second SSB based on the identification information and frequency point of the second SSB; The terminal receives the second SSB based on the identification information of the first SSB and the frequency point of the second SSB.

8. The information acquisition method according to claim 3, characterized in that, After the terminal receives the first synchronization signal / physical broadcast channel block (SSB) sent by the network-side device, the method further includes: If the correction information includes the difference in transmission power between the first SSB and the second SSB, the terminal corrects the cell measurement results based on the difference.

9. The information acquisition method according to claim 3, characterized in that, After the terminal receives the first synchronization signal / physical broadcast channel block (SSB) sent by the network-side device, the method further includes: If the correction information includes time synchronization information of the first SSB and the second SSB, the terminal receives the second SSB based on the time synchronization information.

10. The information acquisition method according to any one of claims 1 to 9, characterized in that, The identification information of the second SSB includes at least one of the following: The first X bits or the last X bits of the target identifier; A first identifier, wherein the first identifier is a parameter generated based on the target identifier; The second identifier is a parameter generated based on the target identifier and the synchronization signal sequence in the second SSB; The target identifier is the identifier of the cell corresponding to the second SSB.

11. The information acquisition method according to any one of claims 1 to 9, characterized in that, The terminal includes a low-capability RedCap user equipment (UE).

12. The information acquisition method according to claim 11, characterized in that, The RedCap UE includes at least one of the following: Supports RedCap UE with 1 receive antenna; Supports RedCap UE with 2 receive antennas; The maximum supported bandwidth capacity does not exceed the target bandwidth of the Redcap UE; Redcap UEs only support half-duplex mode in the Frequency Division Duplex (FDD) band.

13. An information acquisition device, characterized in that, include: The first receiving module is configured to receive a first synchronization signal / physical broadcast channel block (SSB) sent by a network-side device; wherein the first SSB includes at least one of the following: The first indication information is used to indicate whether the frequency point of the first SSB supports same-frequency measurement and / or reselection; The identification information of the second SSB; The frequency of the second SSB; the first SSB and the second SSB correspond to the same cell, carrier or transmitting site, but have different frequency points.

14. The information acquisition device according to claim 13, characterized in that, The first SSB also includes at least one of the following: Correction information, used to correct the cell measurement results; The second indication information is used to indicate whether the first SSB and the second SSB are quasi-co-located; The third indication information is used to indicate whether the cell corresponding to the first SSB supports the terminal.

15. The information acquisition device according to claim 14, characterized in that, The correction information includes at least one of the following: The difference in transmission power between the first SSB and the second SSB; Time synchronization information between the first SSB and the second SSB.

16. The information acquisition device according to claim 13, characterized in that, The second SSB includes a cell definition (CDSSB); the first SSB includes a non-cell definition (NCD SSB).

17. The information acquisition device according to claim 13, characterized in that, The device further includes: The measurement module is configured to perform cell measurements at the frequency of the first SSB when the first indication information indicates that the frequency of the first SSB supports co-frequency measurement and / or cell reselection; or, If the first indication information indicates that the frequency of the first SSB does not support co-frequency measurement and / or reselection, cell measurement shall be performed at the frequency of the second SSB.

18. The information acquisition device according to claim 13, characterized in that, The device further includes: The second receiving module is configured to perform at least one of the following: Based on the identification information of the second SSB and the frequency point of the CD SSB of the serving cell, the second SSB is received; Based on the identification information and frequency point of the second SSB, the second SSB is received; Based on the identification information of the first SSB and the frequency point of the second SSB, the second SSB is received.

19. A terminal, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the information acquisition method as described in any one of claims 1 to 12.

20. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the information acquisition method as described in any one of claims 1-12.

Images