CN116074902A

CN116074902A - Information acquisition method, device and terminal

Info

Publication number: CN116074902A
Application number: CN202111288978.9A
Authority: CN
Inventors: 吴凯; 王理惠; 潘学明
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2023-05-05
Also published as: WO2023078251A1

Abstract

The application discloses an information acquisition method, an information acquisition device and a terminal, which belong to the technical field of communication, and the information acquisition method in the embodiment of the application comprises the following steps: the terminal receives a first synchronous signal/physical broadcast channel block SSB sent by network side equipment; wherein the first SSB includes at least one of the following: the first indication information is used for indicating whether the frequency point of the first SSB supports co-frequency measurement and/or reselection; identification information of the second SSB; a frequency bin of the second SSB; 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

Technical Field

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

Background

In a fifth generation mobile communication (5th Generation Mobile Communication,5G) New Radio, NR, a terminal performs reception of a synchronization signal block, uplink transmission of a random access procedure, or downlink reception, reception of system information and paging information on an initial downlink Bandwidth Part (BWP) of a cell, and performs Radio resource management (Radio Resource Management, RRM) measurement and reselection based on a cell definition synchronization signal/physical broadcast channel block (cell defining Synchronization Signal/PBCH block, CD SSB) within the initial downlink BWP.

In the related art, it is supported that for a part of terminals, such as low capability (reduced capability, redCap) User Equipment (UE), an additional initial downlink bandwidth portion (initial DL BWP) is configured, in which the terminal may perform the above-mentioned transmitting and receiving actions, a Non-cell definition (NCD) SSB is included in the additional initial DL BWP, and a physical broadcast channel (Physical Broadcast Channel, PBCH) in the NCD SSB does not include configuration information indicating the reception of system information; the terminal may make cell measurements at the frequency locations of the NCD SSBs in the additional initial DL BWP.

The network can flexibly deploy the frequency positions and the physical cell identities (Physical Cell Identifier, PCI) of the CD SSB and the NCD SSB; however, the network is not necessarily deployed with adjacent cells at the frequency positions of the CD SSB or the NCD SSB, or the PCIs of the CD SSB and the NCD SSB may be different, so that the terminal cannot learn the information related to cell measurement and reselection, such as the frequency of the CD SSB or the PCI, which affects the accuracy of cell measurement and increases the reselection delay.

Disclosure of Invention

The embodiment of the application provides an information acquisition method, an information acquisition device and a terminal, which can solve the problem that the terminal cannot know the relevant information of cell measurement and reselection, such as the frequency of CD SSB or PCI.

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

the terminal receives a first synchronous signal/physical broadcast channel block SSB sent by network side equipment; wherein the first SSB includes at least one of the following:

the first indication information is used for indicating whether the frequency point of the first SSB supports co-frequency measurement and/or reselection;

identification information of the second SSB;

a frequency bin of the second SSB; the first SSB and the second SSB correspond to the same cell, carrier, or transmitting station, and have different frequency points.

In a second aspect, there is provided an information acquisition apparatus applied to a terminal, the apparatus comprising:

a receiving module, 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:

identification information of the second SSB;

In a third aspect, there is provided a terminal comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, the program or instruction when executed by the processor implementing the steps of the method according to the first aspect.

In a fourth aspect, a terminal is provided, including a processor and a communication interface, where the communication interface 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:

identification information of the second SSB;

In a fifth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor realizes the steps of the method according to the first aspect.

In a sixth aspect, there is provided a chip comprising a processor and a communication interface coupled to the processor for running a program or instructions to implement the method of the first aspect.

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

In the embodiment of the application, 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, the terminal can obtain the identification information and the frequency point of the second SSB and whether the frequency point of the first SSB supports the same-frequency measurement and/or reselection and other related information, so that the terminal can definitely measure and reselect cells, thereby realizing rapid cell measurement and reselection, improving the accuracy of cell measurement and reducing the reselection time delay.

Drawings

Fig. 1 is a block diagram illustrating a wireless communication system to which embodiments of the present application are applicable;

fig. 2 is a schematic flow chart of an information acquisition method according to an embodiment of the present application;

fig. 3 is one of schematic diagrams of the positions of the frequency points of the CD SSB and the frequency points of the NCD SSB of two different cells according to the embodiment of the present application;

fig. 4 is a second schematic diagram of the locations of the frequency points of the CD SSB and the frequency points of the NCD SSB of two different cells according to the embodiment of the present application;

fig. 5 is a third schematic diagram of the positions of the frequency points of the CD SSB and the frequency points of the NCD SSB of two different cells according to the embodiment of the present application;

fig. 6 is a schematic diagram of the locations of the frequency points of the CD SSB and the frequency points of the NCD SSB of two different cells according to 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;

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

fig. 9 is a second schematic structural diagram of a terminal according to an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. 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 otherwise described herein, and that the terms "first" and "second" are generally intended to be used in a generic sense and not to limit the number of objects, for example, the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

It is noted that the techniques described in embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (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 embodiments of the present application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New air interface (NR) system for purposes of example and uses NR terminology in much of the description that follows, but these techniques are also applicable to applications other than NR system applications, such as generation 6 (6) ^th Generation, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which the embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may also be called a terminal Device or a User Equipment (UE), and the terminal 11 may be a terminal-side Device such as a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer) or a notebook (Personal Digital Assistant, PDA), a palm Computer, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet Device (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (VUE), a pedestrian terminal (PUE), a smart home (home Device with a wireless communication function, such as a refrigerator, a television, a washing machine, or furniture, etc.), and the Wearable Device includes: intelligent watches, intelligent bracelets, intelligent headphones, intelligent glasses, intelligent jewelry (intelligent bracelets, intelligent rings, intelligent necklaces, intelligent bracelets, intelligent footchains, etc.), intelligent bracelets, intelligent clothing, game machines, etc. Note that, the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may be a base station or a core network, wherein the base station may be referred to as 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 set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, a transmission and reception point (Transmitting Receiving Point, TRP), or some other suitable terminology in the field, and the base station is not limited to a specific technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiment of the present 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 application is described in detail below by some embodiments and application scenarios thereof with reference to the accompanying drawings.

The embodiment of the invention provides an information acquisition method, which can be applied to network side equipment to support configuration of additional initial DL BWP for partial terminals, such as a RedCAP UE, and in a scene that the additional initial DL BWP contains NCD SSB, after the terminal receives first SSB which is sent by the network side equipment and carries first indication information, identification information of second SSB and/or frequency point of second SSB, the terminal can acquire the identification information and the 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 definitely measure and reselect cells, thereby realizing rapid cell measurement and reselection, improving the accuracy of cell measurement and reducing reselection delay.

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

Fig. 2 is a schematic flow chart of an information obtaining method according to an embodiment of the present application, as shown in fig. 2, where the method includes:

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

a) The first indication information is used for indicating whether the frequency point of the first SSB supports the same-frequency measurement and/or reselection;

b) Identification information of the second SSB;

c) A frequency bin of the second SSB; the first SSB and the second SSB correspond to the same cell, carrier, or transmitting station, and have different frequency points.

It should be noted that, the embodiment of the present application may be applied to a scenario in which the network-side device supports configuring an additional initial DL BWP for a part of terminals, for example, a RedCap UE, and includes an NCD SSB in the additional initial DL BWP. Terminals include, but are not limited to, the types of terminals 11 listed above; network-side devices include, but are not limited to, the types of network-side devices 12 listed above. In this embodiment of the present application, the first SSB and the second SSB may correspond to the same cell, may correspond to the same carrier, or may correspond to the same transmitting station, which is not limited in this application, and the following description will take the case that the first SSB and the second SSB correspond to the same cell as an example.

Alternatively, the identification information of the second SSB may include: PCI or Cell Identifier (Cell ID). The second SSB comprises a CD SSB and the first SSB comprises an NCD SSB. In particular, the first SSB and the synchronization signal grid (sync symbol) may have different frequency points; the frequency point of the SSB refers to the center frequency location of the bandwidth of the SSB, and the synchronization signal grid is a predefined center frequency location of the bandwidth of the SSB that can be used for CD SSB transmission.

In practice, the transmitting station may include, but is 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, B node, eNB, home node B, home evolved node B, WLAN access point, TRP, etc.

In the information acquisition method provided by the embodiment of the invention, in a scenario that the network side equipment supports configuring additional initial DL BWP for a part of terminals, such as a RedCap UE, and NCD SSB is included in the additional initial DL BWP, the network side equipment sends first SSB carrying first indication information, identification information of second SSB and/or frequency point of second SSB to the terminal, so that the terminal can acquire the identification information and frequency point of second SSB, and whether the frequency point of first SSB supports related information such as same-frequency measurement and/or reselection, so that the terminal can definitely measure and reselect cells, thereby realizing rapid cell measurement and reselection, improving accuracy of cell measurement, and reducing reselection time delay.

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

d) Correction information for correcting the cell measurement result;

specifically, the correction information includes at least one of: a difference in transmit power of the first SSB and the second SSB; time synchronization information of the first SSB and the second SSB. Illustratively, the time synchronization information of the first SSB and the second SSB includes: errors in the transmission times of the first SSB and the second SSB.

e) And second indication information for indicating whether the first SSB and the second SSB are quasi co-located.

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

In practice, in the case that the first SSB includes the second indication information and the second indication information indicates that the first SSB and the second SSB are quasi co-located, the terminal may perform cell measurement at a frequency point of the first SSB or a frequency point of the second SSB, and perform cell reselection based on a measurement result. Preferably, filtering may be performed based on measurements between different frequencies, based on filtered measurements, or cell reselection may be performed.

f) The third indication information is used for indicating whether the cell corresponding to the first SSB supports the terminal or not;

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 reside or access. And under the condition that the third indication information indicates that the cell corresponding to the first SSB does not support the terminal, the terminal does not conduct cell measurement at the frequency point of the first SSB, invalid measurement is avoided, and accuracy of cell measurement is improved. The terminal in the embodiment of the application may include a RedCap UE; in practice, for the RedCap UE, because the terminal capability is low, more overhead is often required when the network side device serves the terminals, and the network side device may choose to prohibit access or residence of such terminals in a part of cells, so as to improve the network resource utilization. And the RedCap UE may include at least one of:

1) A supported number of receive antennas 1 of the RedCap UE, such as 1 receive antenna (1 rx) RedCap UE;

2) A 2-supported RedCap UE, such as a 2rx RedCap UE, for the number of receive antennas;

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

4) Redcap UEs supporting only half-duplex mode in frequency division duplex (Frequency Division Duplex, FDD) frequency band;

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

Fig. 3 is one of schematic diagrams of positions of frequency points of CD SSBs and frequency points of NCD SSBs of two different cells provided in the embodiment of the present application, fig. 4 is two schematic diagrams of positions of frequency points of CD SSBs and frequency points of NCD SSBs of two different cells provided in the embodiment of the present application, fig. 5 is three schematic diagrams of positions of frequency points of CD SSBs and frequency points of NCD SSBs of two different cells provided in the embodiment of the present application, and fig. 6 is four schematic diagrams of positions of frequency points of CD SSBs and frequency points of NCD SSBs of two different cells provided in the embodiment of the present application; in this embodiment of the present application, the serving cell of the terminal is, for example, cell 1, and the cell corresponding to the second SSB is, for example, a neighboring cell (assumed to be cell 2) shown in fig. 3 to 6. The following describes embodiments of the present application in connection with the case of 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 fig. 3 to 6.

1. The method comprises the steps that a first initial downlink BWP is configured by a network side device, the first initial downlink BWP comprises a first SSB, the first SSB is NCD-SSB, and under the condition that the first SSB comprises first indication information, after receiving the first SSB sent by the network side device, the terminal executes at least one of the following operations:

a) Under the condition that the first indication information indicates that the frequency point of the first SSB supports the same-frequency measurement and/or reselection, the terminal performs cell measurement on the frequency point of the first SSB;

b) And under the condition that the first indication information indicates that the frequency point of the first SSB does not support co-frequency measurement and/or reselection, the terminal performs cell measurement on the frequency point of the second SSB.

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

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

As shown in fig. 3, the network side device performs SSB transmission of multiple cells at the same frequency location, in this case, the terminal may perform common-frequency measurement on the frequency point of the first SSB, and when the terminal measures the serving cell and other cells, the terminal may perform cell reselection based on the common-frequency measurement result. The network side device may indicate in the PBCH in the first SSB that the frequency point of the first SSB supports co-channel measurement and/or reselection.

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

As shown in fig. 5 and 6, when the network side device does not perform SSB transmission of other cells on the frequency point of the NCD SSB of the serving cell, the terminal cannot measure the SSB of other cells on the frequency point of the NCD SSB of the serving cell, and cannot reselect to other cells based on the measurement of the frequency point. The network side device may indicate in the PBCH of the first SSB that the frequency point of the first SSB does not support co-channel measurement and/or reselection. At this time, the terminal needs to return to the frequency of the second SSB to perform measurement, and perform same-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 ras.

2. The method comprises the steps that a first initial downlink BWP is configured by a network side device, the first initial downlink BWP comprises a first SSB, the first SSB is NCD-SSB, and under the condition that the first SSB comprises identification information of a second SSB and/or frequency points of the second SSB, after receiving the first SSB sent by the network side device, the terminal executes at least one of the following operations:

1) And 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 service cell.

Specifically, in a scenario that 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, if 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 point of the CD SSB of the serving cell, and reselects to the cell corresponding to the second SSB based on the system information corresponding to the second SSB.

In the network deployment scenario as shown in fig. 3, if the PCIs of the first SSB and the second SSB of the neighboring cell are different, when the terminal detects the PCIs of the NCD-SSB of the cell 2, the SSB of the same PCI cannot be found at the frequency point of the CD SSB of the cell 1 and reselected. To solve this problem, the network side device in the embodiment of the present application may indicate Cell ID information of Cell 2 in the PBCH of the first SSB. The terminal may detect and measure the CD-SSB of cell 2 at the frequency point of the CD-SSB of cell 1 and reselect to cell 2 based on the CD-SSB of cell 2.

As shown in fig. 3, if the network side device also performs transmission of the CD-SSB of other cells at the frequency point of the CD-SSB of the cell 1 (the cell before the current residence and reselection), the terminal may directly measure the CD-SSB of the cell 2 at the frequency point of the CD-SSB of the cell 1 and reselect/camp to the cell 2; at this time, the network side device does not need to additionally indicate the frequency point of the CD SSB of the cell 1 in the PBCH of the first SSB.

2) And 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 in which 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 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 second 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.

In the network deployment scenario as shown in fig. 4, if the PCIs of the first SSB and the second SSB of the neighboring cell are different, the network side device does not perform the transmission of the CD-SSB of the cell 2 at the frequency point of the CD-SSB of the cell 1, and the terminal cannot detect and measure the CD-SSB of the cell 2 at the frequency point 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 frequency point of the CD-SSB of the Cell 2 while indicating the Cell ID of the Cell 2 in the PBCH of the first SSB. The terminal may detect the CD-SSB of Cell 2 based on the Cell ID information of Cell 2 and the frequency point of the CD-SSB of Cell 2 and complete reselection to the target Cell.

3) And 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 that 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 a 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 a cell corresponding to the second SSB based on system information corresponding to the second SSB.

In the network deployment scenario as shown in fig. 4, if the PCI of the second SSB and the first SSB of the cell 2 are the same, the network side device only needs to indicate the frequency point of the CD-SSB of the cell 2 in the first SSB, without additional identification information indicating the first SSB. The terminal detects a second SSB identical to 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, the network side device configures a first initial downlink BWP, the first initial downlink BWP includes a first SSB, the first SSB is an NCD-SSB, and in the case that the first SSB includes correction information, the terminal performs at least one of the following operations after receiving the first SSB sent by the network side device:

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

specifically, the network side device may indicate a difference in transmission power between the second SSB and the first SSB in the first SSB, and the terminal adjusts the measurement result of the first SSB based on the difference, for example, the transmission power of the first SSB is 3dB lower than the transmission power of the second SSB, and then the terminal compensates for the measurement result of the first SSB by 3 dB. The measurement may include at least one of: 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 to interference plus noise ratio (Signal to Interference Noise Ratio, SINR).

b) In the case that the time synchronization information of the first SSB and the second SSB is included in the correction information, the terminal receives the second SSB based on the time synchronization information.

Specifically, the second SSB is of 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 the transmission times of the first SSB and the second SSB. For example, the time synchronization information may be an offset in symbols, slots, subframes, fields, or radio frames. And the terminal receives the second SSB based on the time synchronization message and completes reselection after receiving the system information corresponding to the second SSB.

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

1) Front X-bit information or rear X-bit information of the target mark; the target identifier is an identifier of a cell corresponding to the second SSB.

Specifically, the identification of the second SSB corresponding cell may include: the second SSB corresponds to the PCI or Cell ID of the Cell.

2) A first identifier, wherein 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 by using any one of formulas (1) - (4):

Z＝mod(Cell ID，Y) (1)

Z＝ceil(Cell ID/Y) (2)

Z＝floor(Cell ID/Y) (3)

Z＝round(Cell ID/Y) (4)

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

3) A second identifier, wherein 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 equation (5):

wherein the second mark is

Or->

Said->

Representing said target identity, said ++>

For parameters generated based on the secondary synchronization signal SSS sequence in said second SSB, said +.>

Parameters generated based on the primary synchronization signal PSS sequence in the second SSB.

In the embodiment of the application, the network side equipment indicates the PCI and/or the frequency point of the CD SSB through the PBCH in the NCD SSB, and the terminal rapidly tests or reselects the target cell corresponding to the indication based on the PCI and/or the frequency point of the CD SSB. The CD SSB and NCD SSB here correspond to the same cell, carrier or transmitting station. The method and the device realize that the terminal can determine the measured frequency based on the indication of the network side equipment, and the terminal can more quickly reselect to a new service cell based on the information indicated by the network side equipment under the condition of determining that reselection is needed.

It should be noted that, in the information acquisition method provided in the embodiment of the present application, the execution subject may be 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, an information acquisition device provided in the embodiment of the present application is described by taking an example in which the information acquisition device executes an information acquisition method.

Fig. 7 is a schematic structural diagram of an information obtaining apparatus according to an embodiment of the present application, and as shown in fig. 7, the information obtaining apparatus 700 is applied to a terminal, and includes:

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

the first indication information is used for indicating whether the frequency point of the first SSB supports the same-frequency measurement and/or reselection;

identification information of the second SSB;

According to the information acquisition device provided by the embodiment of the application, after the first SSB which is sent by the network side equipment and carries the first indication information, the identification information of the second SSB and/or the frequency point of the second SSB is received, the identification information and the frequency point of the second SSB and whether the frequency point of the first SSB supports the same-frequency measurement and/or reselection and other related information can be obtained, so that the terminal can clearly determine the cell measurement and reselection behaviors, quick cell measurement and reselection are realized, the accuracy of cell measurement can be improved, and the reselection time delay is reduced.

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

correction information for correcting the cell measurement result;

second indication information for indicating whether the first SSB and the second SSB are quasi co-located;

and third indication information, configured to indicate whether the cell corresponding to the first SSB supports the terminal.

Optionally, the correction information includes at least one of:

a difference in transmit power of the first SSB and the second SSB;

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

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

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

Optionally, the apparatus further comprises: a measurement module, configured to perform cell measurement on a frequency point of the first SSB when the first indication information indicates that the frequency point of the first SSB supports co-frequency measurement and/or reselection; or,

and carrying out cell measurement on the frequency point of the second SSB under the condition that the first indication information indicates that the frequency point of the first SSB does not support common frequency measurement and/or reselection.

Optionally, the apparatus further comprises: a second receiving module for performing at least one of:

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;

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

Optionally, the apparatus further comprises:

and the first correction module is used for correcting the cell measurement result according to the difference value when the correction information comprises the difference value of the transmission power of the first SSB and the second SSB.

Optionally, the apparatus further comprises:

and a second correction module, configured to receive the second SSB based on the time synchronization information when the time synchronization information of the first SSB and the second SSB is included in the correction information.

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

front X-bit information or rear X-bit information of the target mark;

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

a second identifier, wherein 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.

Optionally, the terminal includes a RedCap UE.

Optionally, the RedCap UE includes at least one of:

a RedCap UE with a number of supported receive antennas of 1;

a RedCap UE with a number of supported receive antennas of 2;

the supported maximum bandwidth capability does not exceed the Redcap UE of the target bandwidth;

and only supporting the Redcap UE in the half duplex mode in the FDD frequency band.

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

The information acquiring apparatus in the embodiment of the present application may be an apparatus, an apparatus with an operating system, or an electronic device, or may be a component, an integrated circuit, or a chip in a terminal. The apparatus or electronic device may be a mobile terminal or a non-mobile terminal. By way of example, mobile terminals may include, but are not limited to, the types of terminals 11 listed above, and non-mobile terminals may be servers, network attached storage (Network Attached Storage, NAS), personal computers (personal computer, PCs), televisions (TVs), teller machines, self-service machines, etc., and embodiments of the present application are not limited in detail.

The information acquisition device provided in the embodiment of the present application can implement each process implemented by the embodiments of the methods of fig. 1 to 6, and achieve the same technical effects, so that repetition is avoided, and no further description is provided herein.

Fig. 8 is one of schematic structural diagrams of a terminal provided in an embodiment of the present application; as shown in fig. 8, the terminal 800 provided in the embodiment of the present application includes a processor 801, a memory 802, and a program or an instruction stored in the memory 802 and capable of running on the processor 801, where the program or the instruction implements each process of the embodiment of the information obtaining method when executed by the processor 801, and the same technical effects can be achieved, and for avoiding repetition, a detailed description is omitted herein.

The embodiment of the application also provides a terminal, which comprises a processor and a communication interface; wherein the communication interface is for: receiving a first SSB sent by network side equipment; wherein the first SSB includes at least one of the following:

identification information of the second SSB;

The terminal embodiment corresponds to the terminal-side method embodiment, and each implementation process and implementation manner of the method embodiment are applicable to the terminal embodiment and can achieve the same technical effects.

FIG. 9 is a second schematic structural diagram of a terminal according to an embodiment of the present disclosure; as shown in fig. 9, the terminal 900 includes, but is not limited to: at least some of the components of the radio frequency unit 901, the network module 902, the audio output unit 903, the input unit 904, the sensor 905, 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 will appreciate that terminal 900 may also include a power source (e.g., a battery) for powering the various components, the power source may be logically connected to processor 910 by a power management system,thus realizing the functions of charge, discharge, power consumption management and the like through the power management system. Drawing of the figure9The terminal structure shown in (c) does not constitute a limitation of the terminal, and the terminal may comprise more or less components than shown in the figures, or may combine certain components, or may be arranged in different components, which are not described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 904 may include a graphics processor (Graphics Processing Unit, GPU) 9041 and a microphone 9042, with the graphics processor 9041 processing image data of still pictures or video obtained by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. 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. Touch panel 9071, also referred to as 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, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In this embodiment, after receiving downlink data from a network side device, the radio frequency unit 901 processes the downlink data with the processor 910; in addition, the uplink data is sent to the network side equipment. 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, and the like.

The memory 909 may be used to store software programs or instructions as well as various data. The memory 909 may mainly include a storage program or instruction area that may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and a storage data area. 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 (ROM), a Programmable ROM (PROM), an Erasable Programmable ROM (EPROM), an Electrically Erasable Programmable EPROM (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.

Processor 910 may include one or more processing units; alternatively, the processor 910 may integrate an application processor that primarily processes operating systems, user interfaces, and applications or instructions, etc., with a modem processor that primarily processes wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 910.

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

identification information of the second SSB;

After the terminal provided by the embodiment of the application receives the first SSB which is sent by the network side equipment and 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 the frequency point of the second SSB and whether the frequency point of the first SSB supports the same-frequency measurement and/or reselection and other related information can be obtained, so that the terminal can clearly determine the cell measurement and reselection behaviors, thereby realizing rapid cell measurement and reselection, improving the accuracy of cell measurement and reducing the reselection time delay.

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

correction information for correcting the cell measurement result;

Optionally, the correction information includes at least one of:

a difference in transmit power of the first SSB and the second SSB;

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

Optionally, the second SSB comprises a cell definition, CD, SSB; the first SSB comprises a non-cell defining NCD SSB.

Optionally, the first SSB has a different frequency point than the synchronization signal grid sync symbol.

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 reselection, perform cell measurement on the frequency point of the first SSB; or,

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

Optionally, the processor 910 is further configured to, in a case where the correction information includes a difference between the transmission powers of the first SSB and the second SSB, correct the cell measurement result according to the difference.

Optionally, the processor 910 is further configured to, in a case where the time synchronization information of the first SSB and the second SSB is included in the correction information, receive the second SSB based on the time synchronization information.

front X-bit information or rear X-bit information of the target mark;

Optionally, the terminal includes a RedCap UE.

Optionally, the RedCap UE includes at least one of:

a RedCap UE with a number of supported receive antennas of 1;

a RedCap UE with a number of supported receive antennas of 2;

The embodiment of the present application further provides a readable storage medium, where the readable storage medium may be volatile or non-volatile, and a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the above embodiment of the information obtaining method, and the same technical effect can be achieved, so that repetition is avoided, and no further description is provided herein.

Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium such as a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

The embodiment of the application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled with the processor, and the processor is used for running a program or an instruction, so as to implement each process of the above information acquisition method embodiment, and achieve the same technical effect, so that repetition is avoided, and no redundant description is provided here.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

The embodiments of the present application further provide a computer program/program product, where 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 each process of the above-mentioned information obtaining method embodiment, and the same technical effects are achieved, so that repetition is avoided, and details are not repeated herein.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., 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.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solutions of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), comprising several instructions for causing a terminal (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the methods described in the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims

1. An information acquisition method, characterized by comprising:

identification information of the second SSB;

2. The information acquisition method according to claim 1, wherein the first SSB further includes at least one of:

correction information for correcting the cell measurement result;

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

a difference in transmit power of the first SSB and the second SSB;

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

4. The information acquisition method according to claim 1, wherein the second SSB includes a cell definition CD SSB; the first SSB comprises a non-cell defining NCD SSB.

5. The information acquisition method according to claim 1, wherein the first SSB and the synchronization signal grid sync symbol have different frequency points.

6. The 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 comprises at least one of:

under the condition that the first indication information indicates that the frequency point of the first SSB supports the same-frequency measurement and/or reselection, the terminal performs cell measurement on the frequency point of the first SSB;

and under the condition that the first indication information indicates that the frequency point of the first SSB does not support co-frequency measurement and/or reselection, the terminal performs cell measurement on the frequency point of the second SSB.

7. The 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 comprises at least one of:

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 service cell;

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

and 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, wherein after the terminal receives the first synchronization signal/physical broadcast channel block SSB transmitted by the network side device, the method further comprises:

and when the correction information comprises a difference value of the transmission power of the first SSB and the second SSB, the terminal corrects a cell measurement result according to the difference value.

9. The information acquisition method according to claim 3, wherein after the terminal receives the first synchronization signal/physical broadcast channel block SSB transmitted by the network side device, the method further comprises:

in the case that the time synchronization information of the first SSB and the second SSB is included in the correction information, 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:

front X-bit information or rear X-bit information of the target mark;

11. The method according to any of claims 1 to 9, wherein the terminal comprises a low capability RedCap user equipment UE.

12. The information acquisition method according to claim 11, wherein the RedCap UE includes at least one of:

a RedCap UE with a number of supported receive antennas of 1;

a RedCap UE with a number of supported receive antennas of 2;

only half duplex mode Redcap UEs are supported in the frequency division duplex FDD band.

13. An information acquisition apparatus, characterized by comprising:

a first receiving module, 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:

identification information of the second SSB;

14. The information acquisition device of claim 13, wherein the first SSB further comprises at least one of:

correction information for correcting the cell measurement result;

15. The information acquisition apparatus according to claim 14, wherein the correction information includes at least one of:

a difference in transmit power of the first SSB and the second SSB;

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

16. The information acquisition apparatus of claim 13, wherein the second SSB comprises a cell definition, CD, SSB; the first SSB comprises a non-cell defining NCD SSB.

17. The information acquisition apparatus according to claim 13, characterized in that the apparatus further comprises:

A measurement module, configured to perform cell measurement on a frequency point of the first SSB when the first indication information indicates that the frequency point of the first SSB supports co-frequency measurement and/or reselection; or,

18. The information acquisition apparatus according to claim 13, characterized in that the apparatus further comprises:

a second receiving module for performing at least one of:

19. A terminal comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, which when executed by the processor implements the steps of the information acquisition method as claimed in any one of claims 1 to 12.

20. A readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, implement the steps of the information acquisition method according to any one of claims 1 to 12.