WO2023078251A1

WO2023078251A1 - Information acquisition method and apparatus, and terminal

Info

Publication number: WO2023078251A1
Application number: PCT/CN2022/129030
Authority: WO
Inventors: 吴凯; 王理惠; 潘学明
Original assignee: 维沃移动通信有限公司
Priority date: 2021-11-02
Filing date: 2022-11-01
Publication date: 2023-05-11
Also published as: CN116074902A

Abstract

The present application belongs to the technical field of communications. Disclosed are an information acquisition method and apparatus, and a terminal. The information acquisition method in the embodiments of the present application comprises: a terminal receiving a first synchronization signal/physical broadcast channel block (SSB), which is sent by a network-side device, wherein the first SSB comprises at least one of the following: first indication information for indicating whether a frequency point of the first SSB supports intra-frequency measurement and/or reselection; identification information of a second SSB; and a frequency point of the second SSB; and the first SSB and the second SSB correspond to the same cell, carrier or transmitting station, and have different frequency points.

Description

Information acquisition method, device and terminal

Cross References to Related Applications

This application claims the priority of the Chinese patent application with the application number 202111288978.9 filed on November 02, 2021, and the title of the invention is "Information Acquisition Method, Device and Terminal", which is fully incorporated into this application by reference.

technical field

The present application belongs to the technical field of communication, and specifically relates to an information acquisition method, device and terminal.

Background technique

In the fifth generation mobile communication (5G) new air interface (New Radio, NR), the terminal receives the synchronization signal block on the initial downlink bandwidth part (Bandwidth Part, BWP) of a cell, and randomly connects Uplink transmission or downlink reception, system information and paging information reception in the entry process, and radio resources based on the cell defining Synchronization Signal/PBCH block (cell defining Synchronization Signal/PBCH block, CD SSB) in the initial downlink BWP Management (Radio Resource Management, RRM) measurement and reselection.

In related technologies, it is supported to configure an additional initial downlink bandwidth part (initial DL BWP) for some terminals, such as reduced capability (RedCap) user equipment (User Equipment, UE), and the terminal can perform the above-mentioned steps in the additional BWP. The sending and receiving behavior of the additional initial DL BWP contains a non-cell defining (Non-cell defining, NCD) SSB, and the physical broadcast channel (Physical Broadcast Channel, PBCH) in the NCD SSB does not contain information indicating system information Received configuration information; the terminal can perform cell measurement at the frequency position of the NCD SSB in the additional initial DL BWP.

The network can flexibly deploy the frequency positions and Physical Cell Identifier (PCI) of CD SSB and NCD SSB; however, the network does not necessarily deploy adjacent cells at the frequency position of CD SSB or NCD SSB, or CD SSB The PCI of NCD SSB may be different from that of NCD SSB, so 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 the reselection delay.

Contents of the invention

Embodiments of the present application provide an information acquisition method, device, and terminal, which can solve the problem that the terminal cannot obtain information related to cell measurement and reselection, such as CD SSB frequency or PCI.

In the first aspect, an information acquisition method is provided, which is applied to a terminal, and the method includes:

The terminal receives the first synchronization signal/physical broadcast channel block SSB sent by the 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;

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 transmission site, and have different frequencies.

In a second aspect, an information acquisition device is provided, which is applied to a terminal, and the device includes:

The first receiving module is configured to receive the first synchronization signal/physical broadcast channel block SSB sent by the network side device; wherein, the first SSB includes at least one of the following:

Identification information of the second SSB;

In a third aspect, a terminal is provided. The terminal includes a processor, a memory, and a program or instruction stored in the memory and operable on the processor. When the program or instruction is executed by the processor The steps of the method described in the first aspect are realized.

In a fourth aspect, a terminal is provided, including a processor and a communication interface, wherein the communication interface is used to receive the first synchronization signal/physical broadcast channel block SSB sent by the network side device; wherein the first SSB Include at least one of the following:

Identification information of the second SSB;

According to a fifth aspect, a readable storage medium is provided, and a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method according to the first aspect are implemented.

A sixth aspect provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the method as described in the first aspect .

In a seventh aspect, a computer program/program product is provided, the computer program/program product is stored in a non-transitory storage medium, and the computer program/program product is executed by at least one processor to implement the first The steps of the method described in the aspect.

In the embodiment of the present application, after receiving the first SSB sent by the network side device and carrying the first indication information, the second SSB identification information and/or the second SSB frequency point, the terminal can know the second SSB identification information and frequency point, and whether the frequency point of the first SSB supports same-frequency measurement and/or reselection and other relevant information, so that the terminal can clarify the behavior of cell measurement and reselection, thereby realizing fast cell measurement and reselection, and improving the efficiency of the cell measurement accuracy and reduce reselection delay.

Description of drawings

FIG. 1 shows a structural diagram of a wireless communication system to which an embodiment of the present application is applicable;

Fig. 2 is one of the schematic flow charts of the information acquisition method provided by the embodiment of the present application;

Fig. 3 is one of the schematic diagrams of the frequency points of CD SSB and the frequency points of NCD SSB of two different cells provided by the embodiment of the present application;

Fig. 4 is the second schematic diagram of the frequency points of CD SSB and the frequency points of NCD SSB of two different cells provided by the embodiment of the present application;

Fig. 5 is the third schematic diagram of the frequency points of CD SSB and the frequency points of NCD SSB of two different cells provided by the embodiment of the present application;

Fig. 6 is the fourth schematic diagram of the frequency points of CD SSB and the frequency points of NCD SSB of two different cells provided by the embodiment of the present application;

FIG. 7 is a schematic structural diagram of an information acquisition device provided by an embodiment of the present application;

FIG. 8 is one of the schematic structural diagrams of a terminal provided in an embodiment of the present application;

FIG. 9 is a second structural schematic diagram of a terminal provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in this application belong to the protection scope of this application.

The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein and that "first" and "second" distinguish objects. It is usually one category, and the number of objects is not limited. For example, there may be one or more first objects. In addition, "and/or" in the description and claims means at least one of the connected objects, and the character "/" generally means that the related objects are an "or" relationship.

It is worth pointing out that the technology described in the embodiment of this application is not limited to the Long Term Evolution (Long Term Evolution, LTE)/LTE-Advanced (LTE-Advanced, LTE-A) system, and can also be used in other wireless communication systems, such as code 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 (Single-carrier Frequency-Division Multiple Access, SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technologies can be used for the above-mentioned systems and radio technologies as well as other systems and radio technologies. The following description describes the New Radio (NR) system for illustrative purposes, and uses NR terminology in most of the following descriptions, but these techniques can also be applied to applications other than NR system applications, such as the 6th generation (6 ^th Generation, 6G) communication system.

FIG. 1 shows a structural diagram of a wireless communication system to which this embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network side device 12 . Wherein, the terminal 11 can also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital Assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), mobile internet device (Mobile Internet Device, MID), augmented reality (augmented reality, AR)/virtual reality (virtual reality, VR) equipment, robot, wearable device (Wearable Device), vehicle equipment (Vehicle User Equipment, VUE), pedestrian terminal (Pedestrian User Equipment, PUE), smart home (home equipment with wireless communication function, Such as refrigerators, TVs, washing machines or furniture, etc.), wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, game consoles, etc. It should be noted that, the embodiment of the present application does not limit the specific type of the terminal 11 . The network side device 12 may be a base station or a core network, where a base station may be called a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service Basic Service Set (BSS), Extended Service Set (ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN access point, WiFi node, transmission Receiving point (Transmitting Receiving Point, TRP) or some 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 the embodiment of this application, only The base station in the NR system is taken as an example, but the specific type of the base station is not limited.

The information acquisition method provided by the embodiment of the present application will be described in detail below through some embodiments and application scenarios with reference to the accompanying drawings.

The embodiment of the present application provides an information acquisition method, which can be applied to the scenario where the network side equipment supports configuring additional initial DL BWP for some terminals, such as RedCap UE, and the additional initial DL BWP includes NCD SSB In this method, after the terminal receives the first SSB that carries 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, the terminal can obtain the identification information and frequency point of the second SSB, And whether the frequency point of the first SSB supports related information such as same-frequency measurement and/or reselection, so that the terminal can clarify cell measurement and reselection behaviors, thereby achieving fast cell measurement and reselection, and improving the accuracy of cell measurement, Reduce reselection delay.

It should be noted that, in the embodiment of the present application, the second SSB includes the CD SSB in the initial DL BWP (for convenience of description, hereinafter referred to as the second initial downlink BWP) in the related art, and the first SSB includes the initial DL BWP configured additionally. The NCD SSB in the DL BWP (for convenience of description, hereinafter referred to as the first initial downlink BWP), that is to say, the PBCH in the second SSB includes configuration information indicating the reception of system information, and the PBCH in the first SSB Configuration information indicating receipt of system information is not included in .

Fig. 2 is one of the flow diagrams of the information acquisition method provided by the embodiment of the present application. As shown in Fig. 2, the method includes:

Step 201, the terminal receives the first SSB sent by the network side device; wherein, the first SSB includes at least one of the following:

a) first indication information, used to indicate whether the frequency point of the first SSB supports same-frequency measurement and/or reselection;

b) identification information of the second SSB;

c) the frequency point of the second SSB; the first SSB and the second SSB correspond to the same cell, carrier or transmission site, and have different frequency points.

It should be noted that this embodiment of the present application can be applied to a scenario where the network side device supports configuring additional initial DL BWP for some terminals, such as RedCap UE, and the additional initial DL BWP includes NCD SSB. The terminal includes but not limited to the type of terminal 11 listed above; the network side device includes but not limited to the type of network side device 12 listed above. In the embodiment of the present application, the first SSB and the second SSB may correspond to the same cell, may also correspond to the same carrier, or may correspond to the same transmitting site, which is not limited in this application. Hereinafter, the first SSB and the second SSB Two SSBs correspond to the same cell as an example for description.

Optionally, the identification information of the second SSB may include: PCI or a cell identifier (Cell Identifier, Cell ID). 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 central frequency position of the bandwidth of the SSB, and the sync raster is predefined and can be used for CD SSB The center frequency position of the transmitted SSB bandwidth.

In practice, the transmitting site may include but not limited to the types of terminals 11 listed above, such as Node B, evolved Node B, access point, BTS, radio base station, radio transceiver, BSS, ESS, Node B, eNB, home Node B, Home Evolved Node B, WLAN access point, TRP, etc.

In the information acquisition method provided by the embodiment of the present application, the network side device supports the configuration of additional initial DL BWP for some terminals, such as RedCap UE, and in the scenario where the additional initial DL BWP includes NCD SSB, the network side device sends The terminal sends the first SSB carrying the first indication information, the identification information of the second SSB, and/or the frequency of the second SSB, so that the terminal can learn the identification information and frequency of the second SSB, and the frequency of the first SSB Whether to support related information such as intra-frequency measurement and/or reselection, so that the terminal can clarify cell measurement and reselection behaviors, so as to realize fast cell measurement and reselection, improve the accuracy of cell measurement, and reduce reselection delay.

Optionally, in addition to the first SSB provided by the embodiment of the present application may include: the first indication information, the identification information of the second SSB and/or the frequency point of the second SSB, the following d), e) and f may also be included ) at least one of:

d) correction information, information used to correct the cell measurement results;

Specifically, the correction information includes at least one of the following: a difference between the transmission powers of the first SSB and the second SSB; time synchronization information of the first SSB and the second SSB. Exemplarily, the time synchronization information of the first SSB and the second SSB includes: a sending time error of the first SSB and the second SSB.

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

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

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 may be in the first SSB Perform cell measurement on the frequency point of the SSB or the frequency point of the second SSB, and perform cell reselection based on the measurement result. Preferably, filtering may be performed based on measurement results between different frequencies, and cell reselection may be performed based on the filtered measurement results.

f) third indication information, used to indicate whether the cell corresponding to the first SSB supports the terminal;

Specifically, in the embodiment of the present application, 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 measurement at the frequency point of the first SSB, so as to avoid invalid measurement and improve the accuracy of cell measurement. In the embodiment of this application, the terminals may include RedCap UEs; in practice, for RedCap UEs, due to the low terminal capabilities, network-side equipment often requires more overhead when serving these terminals, and the network-side equipment can choose to prohibit the use of such terminals in some cells Access or stay to improve the utilization of network resources. And RedCap UE can include at least one of the following:

1) RedCap UE that supports 1 receiving antenna, such as 1 receiving antenna (1 rx) RedCap UE;

2) RedCap UE that supports 2 receiving antennas, such as 2 rx RedCap UE;

3) Redcap UE whose maximum bandwidth capability does not exceed the target bandwidth; the target bandwidth is 20MHz or 100MHz;

4) In the frequency division duplex (Frequency Division Duplex, FDD) band only supports Redcap UE in half-duplex mode;

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

Fig. 3 is one of the schematic diagrams of the frequency points of CD SSB and the frequency points of NCD SSB of two different cells provided by the embodiment of the present application, and Fig. 4 is the frequency point of CD SSB of two different cells provided by the embodiment of the present application The second schematic diagram of the position of the frequency point of NCD SSB and NCD SSB, Figure 5 is the third schematic diagram of the frequency point of CD SSB and the frequency point of NCD SSB of two different cells provided by the embodiment of the application, Figure 6 is the third embodiment of the application The fourth schematic diagram of the frequency points of CD SSB and the frequency points of NCD SSB of two different cells is provided; the serving cell of the terminal in the embodiment of this application is, for example, cell 1, and the cell corresponding to the second SSB is, for example, Figure 3 - Figure The neighboring cell shown in 6 (assumed to be cell 2). The embodiments of the present application will be described below in conjunction with the different positional relationships between the frequency points of the CD SSB and the frequency points of the NCD SSB of two different cells shown in FIGS. 3-6 .

1. When the network side device configures the first initial downlink BWP, and the first initial downlink BWP includes the first SSB, the first SSB is NCD-SSB, and the first SSB includes the first indication information, the terminal receives the After the first SSB sent by the network side device, the terminal performs at least one of the following operations:

a) When the first indication information indicates that the frequency point of the first SSB supports intra-frequency measurement and/or reselection, the terminal performs cell measurement at the frequency point of the first SSB;

b) When the first indication information indicates that the frequency point of the first SSB does not support intra-frequency measurement and/or reselection, the terminal performs cell measurement at the frequency point of the second SSB.

Specifically, the first indication information may be indicated through the PBCH in the first SSB.

If the PBCH indicates the frequency point of the first SSB, that is, the frequency point where the first SSB is located can perform intra-frequency reselection, the terminal performs intra-frequency (intra-frequency) measurement at the frequency point of the first SSB.

As shown in Figure 3, the network side equipment performs SSB transmission of multiple cells at the same frequency position. In this case, the terminal can perform co-frequency measurement at the frequency point of the first SSB, and the terminal measures the serving cell and other cells. , the terminal can perform cell reselection based on the intra-frequency measurement results. Then the network side device may indicate in the PBCH in the first SSB that the frequency point of the first SSB supports intra-frequency measurement and/or reselection.

If the PBCH indicates that the same-frequency reselection is not possible at the frequency point where the first SSB is located, the terminal performs measurement at the second SSB frequency.

As shown in Figure 5 and Figure 6, the network side equipment does not transmit the SSB of other cells at the NCD SSB frequency of the serving cell. In this case, the terminal cannot measure other cells at the NCD SSB frequency of the serving cell. The SSB of the cell cannot be reselected to other cells based on the measurement of this frequency point. Then the network side device may indicate in the PBCH of the first SSB that the frequency point of the first SSB does not support intra-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 intra-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 syncraster.

2. The first initial downlink BWP is configured on the network side device, and the first initial downlink BWP includes the first SSB, the first SSB is NCD-SSB, and the first SSB includes the identification information of the second SSB and/or the second In the case of the SSB frequency point, after the terminal receives the first SSB sent by the network side device, the terminal performs at least one of the following operations:

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.

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 point, the terminal detects the identification information of the first SSB, and When 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 point of the CD SSB of the serving cell, and based on the system information corresponding to the second SSB, information, and reselect to the cell corresponding to the second SSB.

In the network deployment situation shown in Figure 3, if the PCI of the first SSB and the second SSB of the neighboring cell are different, when the terminal detects the PCI of the NCD-SSB of cell 2, it cannot Find the SSB of the same PCI and reselect. In order to solve this problem, in the embodiment of the present application, the network side device may indicate the Cell ID information of the 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 of the CD SSB of cell 1, and reselect to cell 2 based on the CD-SSB of cell 2.

As shown in Figure 3, if the network side equipment also transmits the CD-SSB of other cells at the frequency of the CD-SSB of cell 1 (currently camped on, the cell before reselection), then the terminal can directly The frequency of CD-SSB is measured to the CD-SSB of cell 2, and reselected/camped in cell 2; at this time, the network side equipment does not need to additionally indicate the frequency of CD SSB of cell 1 in the PBCH of the first SSB.

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

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 that the When the identification information of the first SSB is identified, and the measurement information includes the identification information of the second SSB and the frequency point of the second SSB, the terminal based on the identification information of the second SSB and the the frequency point of the second SSB, receive the second SSB, and reselect to the cell corresponding to the second SSB based on the system information corresponding to the second SSB.

In the network deployment situation shown in Figure 4, if the PCIs of the first SSB and the second SSB of the adjacent cell are different, the network side equipment 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 the cell 2 at the frequency of the CD-SSB of the cell 1, and the terminal cannot complete the reselection to the cell 2. In order to solve this problem, in the embodiment of the present application, the network side device may indicate the Cell ID of the cell 2 in the PBCH of the first SSB, and at the same time indicate the frequency point of the CD-SSB of the cell 2. The terminal can detect the CD-SSB of the cell 2 based on the Cell ID information of the cell 2 and the frequency point of the CD-SSB of the cell 2, and complete reselection to the target cell.

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

Specifically, in a scenario where the first SSB and the second SSB have the same identification information, the terminal detects the identification information of the first SSB, and the measurement information includes the second In the case of the frequency point of the 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 based on the system information corresponding to the second SSB, repeats Select the cell corresponding to the second SSB.

In the network deployment situation shown in Figure 4, if the PCI of the second SSB of cell 2 is the same as that of the first SSB, then the network side device only needs to indicate the frequency point of the CD-SSB of cell 2 in the first SSB, without Additionally indicates the identification information of the first SSB. The terminal detects the second SSB that is the same as the PCI of the first SSB based on the frequency point of the CD-SSB of cell 2, and reselects to cell 2 based on the second SSB.

Optionally, when the network side device configures the first initial downlink BWP, and the first initial downlink BWP includes the first SSB, the first SSB is NCD-SSB, and the first SSB includes correction information, the terminal receives After the first SSB sent by the network side device, the terminal performs at least one of the following operations:

a) When the correction information includes the difference between the transmission power of the first SSB and the second SSB, the terminal corrects the cell measurement result according to the difference;

Specifically, the network side device may indicate in the first SSB the difference in transmission power between the second SSB and the first SSB, and the terminal adjusts the measurement result of the first SSB based on the difference, for example, the transmission of the first SSB If the power is 3dB lower than the transmission power of the second SSB, then the terminal compensates the measurement result of the first SSB by 3dB. The measurement results may include at least one of the following: Reference Signal Received Power (Reference Signal Received Power, RSRP), Reference Signal Received Quality (Reference Signal Received Quality, RSRQ), Received Signal Strength Indication (Received Signal Strength Indication, RSSI), signal interference Noise ratio (Signal to Interference Noise Ratio, SINR).

b) When 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.

Specifically, the second SSB belongs to the same cell, carrier or transmission point as the first SSB. The time synchronization information of the first SSB and the second SSB includes: an error or offset value of sending time of the first SSB and the second SSB. For example, the time synchronization information may be an offset in units of symbols, time slots, subframes, half frames or radio frames. The terminal completes reselection after receiving the second SSB based on the time synchronization signal and receiving system information corresponding to the second SSB.

Optionally, the identification information of the second SSB in this embodiment of the present application includes at least one of the following:

1) The information of the first X digits or the last X digits of the target identifier; wherein, the target identifier is the identifier of the cell corresponding to the second SSB.

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.

2) A first identifier, where the first identifier is a parameter generated based on a target identifier; wherein, the target identifier is an identifier of a cell corresponding to the second SSB.

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

Z＝mod(Cell ID, Y)

Z＝ceil(Cell ID/Y)

Z＝floor(Cell ID/Y)

Z＝round(Cell ID/Y) (4)

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

3) A second identifier, where the second identifier is a parameter generated based on a target identifier and a synchronization signal sequence in the second SSB; wherein, the target identifier is an identifier of a cell corresponding to the second SSB.

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

Wherein, the second identification is

or

said

Indicates the target ID, the

is a parameter generated based on the secondary synchronization signal SSS sequence in the second SSB, the

is a parameter generated based on the primary synchronization signal PSS sequence in the second SSB.

In the embodiment of this application, the network side device indicates the PCI and/or frequency point of the CD SSB through the PBCH in the NCD SSB, and the terminal quickly measures or reselects the target corresponding to the indication based on the PCI and/or frequency point of the CD SSB district. The CD SSB and NCD SSB here correspond to the same cell, carrier or transmission site. It realizes that the terminal can determine the measurement frequency based on the indication of the network side equipment, and when the terminal determines that reselection is required, based on the information indicated by the network side equipment, it can reselect to a new serving cell more quickly.

It should be noted that, the information acquisition method provided in the embodiment of the present application may be executed by an information acquisition device, or a control module in the information acquisition device for executing the information acquisition method. In the embodiment of the present application, the information obtaining device executed by the information obtaining device is taken as an example to describe the information obtaining device provided in the embodiment of the present application.

FIG. 7 is a schematic structural diagram of an information acquisition device provided in an embodiment of the present application. As shown in FIG. 7, the information acquisition device 700 is applied to a terminal and includes:

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

Identification information of the second SSB;

The information acquisition apparatus provided in the embodiment of the present application can know the second SSB after receiving the first SSB sent by the network side device that carries the first indication information, the identification information of the second SSB and/or the frequency point of the second SSB The identification information and frequency point of the first SSB, and related information such as whether the frequency point of the first SSB supports same-frequency measurement and/or reselection, so that the terminal can clarify the behavior of cell measurement and reselection, so as to achieve fast cell measurement and reselection, and can Improve the accuracy of cell measurement and reduce reselection delay.

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

Correction information, information for correcting cell measurement results;

second indication information, 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.

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

The difference between the transmission power of the first SSB and the second SSB;

Time synchronization information of the first SSB and the second SSB.

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

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

Optionally, the device further includes: a measurement module, configured to, when the first indication information indicates that the frequency point of the first SSB supports same-frequency measurement and/or reselection, at the first SSB The frequency point of the cell is measured; or,

In a case where the first indication information indicates that the frequency point of the first SSB does not support intra-frequency measurement and/or reselection, cell measurement is performed at the frequency point of the second SSB.

Optionally, the device further includes: a second receiving module, configured to perform at least one of the following:

receiving the second SSB based on the identification information of the second SSB and the frequency point of the CD SSB of the serving cell;

receiving the second SSB based on the identification information of the second SSB and the frequency point of the second SSB;

Receive the second SSB based on the identification information of the first SSB and the frequency point of the second SSB.

Optionally, the device also includes:

The first correcting module is configured to correct the cell measurement result according to the difference in the case that the correction information includes the difference between the transmission powers of the first SSB and the second SSB.

Optionally, the device also includes:

A second correction module, configured 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.

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

The first X digit information or the last X digit information of the target identification;

A first identifier, where the first identifier is a parameter generated based on the target identifier;

A second identifier, where the second identifier is a parameter generated based on the target identifier and the synchronization signal sequence in the second SSB;

Wherein, the target identifier is an identifier of a cell corresponding to the second SSB.

Optionally, the terminal includes a RedCap UE.

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

RedCap UE that supports 1 receiving antenna;

RedCap UE that supports 2 receiving antennas;

Redcap UE whose maximum bandwidth capability does not exceed the target bandwidth;

Only Redcap UEs in half-duplex mode are supported in the FDD frequency band.

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

The information acquisition device in the embodiment of the present application may be a device, a device with an operating system or an electronic device, or it may be a component, an integrated circuit, or a chip in a terminal. The apparatus or electronic equipment may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include but not limited to the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television ( television, TV), teller machines or self-service machines, etc., are not specifically limited in this embodiment of the present application.

The information acquisition device provided by the embodiment of the present application can realize each process realized by the method embodiments in Fig. 1 to Fig. 6 , and achieve the same technical effect. In order to avoid repetition, details are not repeated here.

Fig. 8 is one of the schematic structural diagrams of the terminal provided by the embodiment of the present application; The program or instruction running on the processor 801, when the program or instruction is executed by the processor 801, implements the various processes of the above-mentioned information acquisition method embodiment, and can achieve the same technical effect. To avoid repetition, details are not repeated here.

The embodiment of the present application also provides a terminal, including a processor and a communication interface; where the communication interface is used to: receive the first SSB sent by the network side device; where the first SSB includes at least one of the following:

Identification information of the second SSB;

This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect.

Fig. 9 is the second structural diagram of the terminal provided by the embodiment of the present application; as shown in Fig. 9, the terminal 900 includes but not limited to: a radio frequency unit 901, a network module 902, an audio output unit 903, an input unit 904, a sensor 905, At least some of the components in the display unit 906 , the user input unit 907 , the interface unit 908 , the memory 909 , and the processor 910 .

Those skilled in the art can understand that the terminal 900 can also include a power supply (such as a battery) for supplying power to various components, and the power supply can be logically connected to the processor 910 through the power management system, so as to manage charging, discharging, and power consumption through the power management system. Management and other functions. The terminal structure shown in FIG. 9 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine some components, or arrange different components, which will not be repeated here.

It should be understood that, in the embodiment of the present application, the input unit 904 may include a graphics processor (Graphics Processing Unit, GPU) 9041 and a microphone 9042, and the graphics processor 9041 is used for the image capture device ( Such as the image data of the still picture or video obtained by the camera) for processing. The display unit 906 may include a display panel 9061, and the display panel 9061 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 two parts, 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, switch buttons, etc.), trackballs, mice, and joysticks, which will not be repeated here.

In the embodiment of the present application, the radio frequency unit 901 receives the downlink data from the network side device, and processes it to the processor 910; in addition, sends the uplink data to the network side device. Generally, 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, and the like.

The memory 909 can be used to store software programs or instructions as well as various data. The memory 909 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, an application program or instructions required by at least one function (such as a sound playback function, an image playback function, etc.) and the like. In addition, the memory 909 may include a high-speed random access memory, and may also include a nonvolatile memory, wherein the nonvolatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. For example at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.

The processor 910 may include one or more processing units; optionally, the processor 910 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, application programs or instructions, etc., Modem processors mainly handle wireless communications, such as baseband processors. It can be understood that the foregoing modem processor may not be integrated into the processor 910 .

Wherein, the radio frequency unit 901 is configured to receive the first SSB sent by the network side device; wherein, the first SSB includes at least one of the following:

Identification information of the second SSB;

The terminal provided in the embodiment of the present application can know the identity of the second SSB after receiving the first SSB sent by the network side device that carries the first indication information, the identification information of the second SSB and/or the frequency point of the second SSB information and frequency point, and whether the frequency point of the first SSB supports same-frequency measurement and/or reselection and other relevant information, so that the terminal can clarify the behavior of cell measurement and reselection, thereby realizing fast cell measurement and reselection, and improving the efficiency of the cell measurement accuracy and reduce reselection delay.

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

Correction information, information for correcting cell measurement results;

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

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

Time synchronization information of the first SSB and the second SSB.

Optionally, the second SSB includes a cell-defined CD SSB; the first SSB includes a non-cell-defined NCD SSB.

Optionally, the first SSB and syncraster have different frequency points.

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 intra-frequency measurement and/or reselection, the terminal at the frequency point of the first SSB frequency point for cell measurement; or,

Optionally, the processor 910 is further configured to perform at least one of the following:

Optionally, the processor 910 is further configured to, in a case where the correction information includes a difference in transmit power between the first SSB and the second SSB, perform a cell measurement result according to the difference fix.

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 .

Optionally, the terminal includes a RedCap UE.

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

RedCap UE that supports 1 receiving antenna;

RedCap UE that supports 2 receiving antennas;

Only Redcap UEs in half-duplex mode are supported in the FDD frequency band.

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

The embodiment of the present application also provides a readable storage medium. The readable storage medium may be volatile or non-volatile. Programs or instructions are stored on the readable storage medium. The program Or, when the instruction is executed by the processor, each process of the above information acquisition method embodiment can be realized, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.

Wherein, the processor is the processor in the terminal described in the foregoing embodiments. The readable storage medium includes computer readable storage medium, such as computer read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.

The embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the above information acquisition method embodiment Each process can achieve the same technical effect, so in order to avoid repetition, it will not be repeated here.

It should be understood that the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.

The embodiment of the present application also provides a computer program/program product, the computer program/program product is stored in a non-transitory storage medium, and the computer program/program product is executed by at least one processor to realize the above information Each process of the embodiment of the acquisition method can achieve the same technical effect, so to avoid repetition, details are not repeated here.

It should be noted that, in this document, the term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising 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 reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

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 software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on such an understanding, the technical solution of the present application can be embodied in the form of computer software products, which are stored in a storage medium (such as ROM/RAM, magnetic disk, etc.) , optical disc), including several instructions to enable a terminal (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in various embodiments of the present application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Under the inspiration of this application, without departing from the purpose of this application and the scope of protection of the claims, many forms can also be made, all of which belong to the protection of this application.

Claims

A method for obtaining information, comprising:

The terminal receives the first synchronization signal/physical broadcast channel block SSB sent by the 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;

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 transmission site, and have different frequencies.
The information acquisition method according to claim 1, wherein the first SSB further includes at least one of the following:

Correction information, information for correcting cell measurement results;

second indication information, 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.
The information acquisition method according to claim 2, wherein the correction information includes at least one of the following:

The difference between the transmission power of the first SSB and the second SSB;

Time synchronization information of the first SSB and the second SSB.
The information acquisition method according to claim 1, wherein the second SSB includes a cell-defined CD SSB; and the first SSB includes a non-cell-defined NCD SSB.
The information acquisition method according to claim 1, wherein the first SSB and syncraster have different frequency points.
The information acquisition method according to claim 1, wherein 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 same-frequency measurement and/or reselection, the terminal performs cell measurement at the frequency point of the first SSB;

In a case where the first indication information indicates that the frequency point of the first SSB does not support intra-frequency measurement and/or reselection, the terminal performs cell measurement at the frequency point of the second SSB.
The information acquisition method according to claim 1, wherein 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 of the second SSB and 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.
The information acquisition method according to claim 3, wherein, 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 a difference between the transmission powers of the first SSB and the second SSB, the terminal corrects the cell measurement result according to the difference.
The information acquisition method according to claim 3, wherein, 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.
The information acquisition method according to any one of claims 1 to 9, wherein the identification information of the second SSB includes at least one of the following:

The first X digit information or the last X digit information of the target identification;

A first identifier, where the first identifier is a parameter generated based on the target identifier;

A second identifier, where the second identifier is a parameter generated based on the target identifier and the synchronization signal sequence in the second SSB;

Wherein, the target identifier is an identifier of a cell corresponding to the second SSB.
The information acquisition method according to any one of claims 1 to 9, wherein the terminal comprises a low-capability RedCap user equipment (UE).
The information acquisition method according to claim 11, wherein the RedCap UE comprises at least one of the following:

RedCap UE that supports 1 receiving antenna;

RedCap UE that supports 2 receiving antennas;

Redcap UE whose maximum bandwidth capability does not exceed the target bandwidth;

In the frequency division duplex FDD frequency band, only half-duplex mode Redcap UE is supported.
An information acquisition device, comprising:

The first receiving module is configured to receive the first synchronization signal/physical broadcast channel block SSB sent by the 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;

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 transmission site, and have different frequencies.
The information acquisition device according to claim 13, wherein the first SSB further includes at least one of the following:

Correction information, information for correcting cell measurement results;

second indication information, 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.
The information acquisition device according to claim 14, wherein the correction information includes at least one of the following:

The difference between the transmission power of the first SSB and the second SSB;

Time synchronization information of the first SSB and the second SSB.
The information acquisition device according to claim 13, wherein the second SSB includes a cell-defined CD SSB; and the first SSB includes a non-cell-defined NCD SSB.
The information acquisition device according to claim 13, wherein the device further comprises:

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 intra-frequency measurement and/or reselection; or,

In a case where the first indication information indicates that the frequency point of the first SSB does not support intra-frequency measurement and/or reselection, cell measurement is performed at the frequency point of the second SSB.
The information acquisition device according to claim 13, wherein the device further comprises:

The second receiving module is configured to perform at least one of the following:

receiving the second SSB based on the identification information of the second SSB and the frequency point of the CD SSB of the serving cell;

receiving the second SSB based on the identification information of the second SSB and the frequency point of the second SSB;

Receive the second SSB based on the identification information of the first SSB and the frequency point of the second SSB.
A terminal, comprising a processor, a memory, and a program or instruction stored in the memory and operable on the processor, when the program or instruction is executed by the processor, any of claims 1 to 12 can be realized. Steps in one of the information acquisition methods.
A readable storage medium, storing programs or instructions on the readable storage medium, and implementing the steps of the information acquisition method according to any one of claims 1-12 when the programs or instructions are executed by a processor.