Information reporting method and device

Abstract

The present application provides an information reporting method and communication device. The method may include: a terminal device decoding a physical broadcast channel (PBCH) in a first synchronization signal block (SSB) sent by a first co-frequency neighboring cell of the terminal device to obtain an index of the first SSB, where the first co-frequency neighboring cell communicates in time division duplex mode; the terminal device measuring the first SSB to obtain a signal measurement result of the first SSB; and the terminal device reporting the signal measurement result of the first SSB and the index of the first SSB to an access network device. In TDD mode, when co-frequency cells are not synchronized, the measurement results of asynchronous cells can be reported in a timely manner.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to an information reporting method and device. Background Art

[0002] The fifth generation mobile communication technology (5G) is being used increasingly widely. In order to fully utilize the bandwidth resources of 5G, the time-division duplex (TDD) mode can be adopted. The TDD mode is a communication mode in which the uplink and downlink use the same frequency band, and the uplink and downlink use different time slots within the same frequency band. When the serving cell and the neighboring cell in which the terminal device is currently residing have the same frequency band, the neighboring cell and the serving cell are co-frequency cells, wherein the neighboring cell is a co-frequency neighboring cell of the serving cell. In TDD network deployment, when the subframe boundaries between co-frequency cells are synchronized and the uplink and downlink ratios configured in the co-frequency cells are the same, the co-frequency cells are synchronized. In the TDD mode, when the co-frequency cells are not synchronized, the terminal device cannot report the measurement results of the co-frequency neighboring cells to the access network equipment, and the co-frequency neighboring cells with strong signal quality may interfere with the signal of the serving cell, causing the terminal device to reside in the cell with poor signal quality for a long time and unable to switch to the co-frequency neighboring cell with good signal quality. Summary of the Invention

[0003] The embodiments of the present application provide an information reporting method and a communication device, which can timely report the measurement results of the same-frequency neighboring cells when the same-frequency cells are not synchronized in TDD mode.

[0004] In a first aspect, the present application provides an information reporting method, the method comprising: a terminal device decodes a physical broadcast channel (PBCH) in a first synchronization signal block (SSB) sent by a first co-frequency neighboring cell of the terminal device to obtain an index of the first SSB, the first co-frequency neighboring cell adopting a time division duplex mode for communication, and the first co-frequency neighboring cell is asynchronous with a serving cell of the terminal device; the terminal device measures the first SSB to obtain a signal measurement result of the first SSB; the terminal device reports the signal measurement result of the first SSB and the index of the first SSB to an access network device. In TDD mode, the terminal device decodes the PBCH in the SSB sent by the asynchronous cell to obtain the index of the SSB of the asynchronous cell, and can promptly report the measurement result of the asynchronous cell in TDD mode when the co-frequency cells are not synchronized.

[0005] In one possible implementation, before the terminal device decodes a physical broadcast channel (PBCH) in a first synchronization signal block (SSB) sent by a first co-frequency neighboring cell of the terminal device to obtain an index of the first SSB, the method further includes: the terminal device determining that the first co-frequency neighboring cell is asynchronous with a serving cell of the terminal device. The terminal device determines whether the first co-frequency neighboring cell is an asynchronous cell, so as to decode the PBCH in the SSB sent by the asynchronous cell and obtain the index of the SSB of the asynchronous cell. In TDD mode, the terminal device can promptly report measurement results of the asynchronous cell to reduce load.

[0006] In one possible implementation, after a terminal device decodes the physical broadcast channel (PBCH) in a first synchronization signal block (SSB) transmitted by a first co-frequency neighboring cell of the terminal device to obtain the index of the first SSB, the following further steps may be performed: the terminal device decodes the physical broadcast channel (PBCH) in a second synchronization signal block (SSB) transmitted by a second co-frequency neighboring cell of the terminal device to obtain the index of a second SSB, where the second co-frequency neighboring cell is synchronized with the serving cell of the terminal device; the terminal device measures the second SSB to obtain a signal measurement result of the second SSB; and the terminal device reports the signal measurement result of the second SSB and the index of the second SSB to the access network device. The terminal device decodes the PBCH in an SSB transmitted by a synchronous cell measured after the first co-frequency neighboring cell to obtain the index of the second SSB. In other words, the terminal device does not need to determine whether the second co-frequency neighboring cell is a synchronous cell or an asynchronous cell. For the first asynchronous cell and all subsequent co-frequency cells measured thereafter, whether synchronous or asynchronous, the terminal device follows the asynchronous cell processing method, decoding the PBCH in the SSB to obtain the cell's SSB index. This simplifies the process, improves feasibility, and simplifies the control flow.

[0007] In one possible implementation, after the terminal device decodes the physical broadcast channel PBCH in the first synchronization signal block SSB sent by the first co-frequency neighboring cell of the terminal device and obtains the index of the first SSB, the following steps are further included: the terminal device determines whether the second co-frequency neighboring cell of the terminal device is synchronized with the service cell of the terminal device; if the second co-frequency neighboring cell is synchronized with the service cell of the terminal device, the index of the second SSB is determined based on the correspondence between the frequency point and the SSB index stored in the terminal device and the frequency point at which the second SSB sent by the second co-frequency neighboring cell is located; the terminal device measures the second SSB to obtain a signal measurement result of the second SSB; and the terminal device reports the signal measurement result of the second SSB and the index of the second SSB to the access network device. The terminal device determines the index of the SSB of the synchronization cell based on the correspondence between the stored frequency point and the SSB index, which can avoid the reporting delay caused by decoding the PBCH in the SSB sent by the newly appeared synchronization cell, can reduce the load, and is conducive to timely reporting of the measurement results of the co-frequency neighboring cell and timely switching to the co-frequency neighboring cell with good signal quality.

[0008] In one possible implementation, the terminal device determines that the first co-frequency neighboring cell is asynchronous with the service cell of the terminal device, including: the terminal device determines that the first co-frequency neighboring cell is asynchronous with the service cell of the terminal device based on the correspondence between the stored frequency point and the SSB index and the frequency point of the first SSB. The terminal device determines whether the first co-frequency neighboring cell is an asynchronous cell based on the correspondence between the stored frequency point and the SSB index, which is beneficial to avoid decoding the PBCH in the SSB sent by the synchronous cell, can improve efficiency, reduce reporting delay, and at the same time, decode the PBCH in the SSB sent by the asynchronous cell to obtain the index of the SSB of the asynchronous cell, so that the measurement result of the asynchronous cell can be reported in a timely manner.

[0009] In one possible implementation, the information reporting method further includes: the terminal device decodes the physical broadcast channel PBCH in the second synchronization signal block SSB sent by the second co-frequency neighboring cell of the terminal device to obtain the index of the second SSB, and the second co-frequency neighboring cell is synchronized with the service cell of the terminal device; the terminal device measures the second SSB to obtain the signal measurement result of the second SSB; the terminal device reports the signal measurement result of the second SSB and the index of the second SSB to the access network device. In other words, the terminal device uses PBCH decoding of the SSB for all synchronous cells and asynchronous cells to obtain the index of the SSB. The terminal device does not need to determine whether the first co-frequency neighboring cell and the second co-frequency neighboring cell are synchronous cells or asynchronous cells, which can reduce the process and improve reporting efficiency.

[0010] In a second aspect, the present application provides a communication device, including: the device can be a terminal device, a device in a terminal device, or a device that can be used in conjunction with a terminal device. The communication device can also be a chip system. The communication device can execute the method described in the first aspect. The functions of the communication device can be implemented by hardware, or by hardware executing corresponding software implementations. The hardware or software includes one or more units corresponding to the above functions. The unit can be software and / or hardware. The operations and beneficial effects performed by the communication device can refer to the methods and beneficial effects described in the first aspect above, and the repeated parts will not be repeated.

[0011] In a third aspect, an embodiment of the present invention provides a communication device, comprising a processor. When the processor calls a computer program in a memory, the method described in the first aspect is executed.

[0012] In a fourth aspect, the present application provides a communication device, which includes a processor and a memory, wherein the memory is used to store computer-executable instructions; the processor is used to execute the computer-executable instructions stored in the memory, so that the communication device performs the method described in the first aspect.

[0013] In a fifth aspect, the present application provides a communication device, which includes a processor, a memory and a transceiver, wherein the transceiver is used to receive a channel or signal, or send a channel or signal; the memory is used to store program code; and the processor is used to call the program code from the memory to execute the method described in the first aspect.

[0014] In a sixth aspect, the present application provides a communication device, comprising a processor and an interface circuit, wherein the interface circuit is configured to receive code instructions and transmit the instructions to the processor; the processor executes the code instructions to execute the method described in the first aspect.

[0015] In a seventh aspect, an embodiment of the present invention provides a computer-readable storage medium, characterized in that the computer-readable storage medium stores one or more instructions, and the one or more instructions are suitable for being loaded by a processor and executing the method described in the first aspect.

[0016] In an eighth aspect, the present application provides a computer program product comprising instructions, which, when executed, enables the method described in the first aspect to be implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the system architecture of an information reporting method provided in an embodiment of the present application;

[0018] Figure 2 This is a schematic diagram of the structure of an information reporting process provided by an embodiment of the present application;

[0019] Figure 3 A schematic diagram of an SSB structure provided in an embodiment of the present application;

[0020] Figure 4 A schematic diagram of another information reporting process structure provided in an embodiment of the present application;

[0021] Figure 5 A schematic diagram of another information reporting process structure provided in an embodiment of the present application;

[0022] Figure 6 This is another schematic diagram of the information reporting process structure provided by the embodiment of the present application;

[0023] Figure 7 This is a structural diagram of another communication device provided in an embodiment of the present application;

[0024] Figure 8 This is a structural diagram of another communication device provided in an embodiment of the present application;

[0025] Figure 9This is a structural diagram of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0026] The terms "first" and "second" and the like in the specification, claims, and drawings of this application are used to distinguish between different objects, not to describe a particular order. Furthermore, the terms "including" and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements, but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to the process, method, product, or apparatus.

[0027] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0028] In this application, "at least one (item)" refers to one or more, "more than one" refers to two or more, "at least two (items)" refers to two or three and more than three, and "and / or" is used to describe the association relationship of associated objects, indicating that there can be three relationships. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0029] In order to better understand the embodiments of the present application, the following professional terms involved in the embodiments of the present application are introduced:

[0030] (1) Co-frequency adjacent cells

[0031] When the frequency band of the serving cell where the terminal device is currently located is the same as that of the neighboring cell, the neighboring cell and the serving cell are co-frequency cells.

[0032] Among them, the neighboring cell is the same-frequency neighboring cell of the serving cell. In TDD network deployment, when the subframe boundaries between the same-frequency cells are synchronized and the uplink and downlink ratios configured in the same-frequency cells are the same, the same-frequency cells are synchronized, the serving cell is synchronized with the neighboring cell, and the neighboring cell is the same-frequency synchronous cell of the serving cell (referred to as the synchronous cell). When the subframe boundaries between the same-frequency cells are not synchronized, or the uplink and downlink ratios configured in the same-frequency cells are different, the serving cell and the neighboring cell are asynchronous, and the neighboring cell is the same-frequency asynchronous cell of the serving cell (referred to as the asynchronous cell).

[0033] (2) Time-division duplex (TDD) mode

[0034] TDD mode uses a shared radio frequency for both transmission and reception. By default, the network is essentially synchronized, meaning that reception and transmission occur on the same frequency channel. Within a frequency band, uplink and downlink use different time slots, effectively separating the receive and transmit channels by time. TDD network deployment requires precise synchronization of subframe boundaries (at the microsecond level) between cells, and the same uplink and downlink ratios within the same TDD synchronized cell.

[0035] (3) Synchronization Signal Block (SSB)

[0036] In the New Radio (NR) system, network equipment needs to send Synchronization Signal Blocks (SSBs) for terminal devices to synchronize, obtain system information, and perform measurements. SSBs consist of three parts: the Primary Synchronization Signals (PSS), the Secondary Synchronization Signals (SSS), and the Physical Broadcast Channel (PBCH). The PSS and SSS are used for downlink synchronization (including timing, frame, and symbol synchronization) of terminal devices. The PSS and SSS are also used to obtain the Cell Identifier (CID) and measure cell signal quality.

[0037] Specifically, PSS is used to obtain the cell identification code (Cell Identifier, CID), determine the cell communication mode as time division duplex (Tim-division duplex, TDD) mode or frequency division duplex (Frequency division duplexing, FDD) mode, and can also be used for time domain synchronization, such as orthogonal frequency division multiplexing (Orthogonal frequency division multiplexing, OFDM) symbol synchronization, time slot synchronization and / or frequency domain synchronization, etc. SSS is used to determine the physical layer identification (Identity document, ID) of the cell, and can also be used to measure the signal quality of the cell, so that the terminal device and the access network device select beams and RRM measurements based on the measurement results. SSB associates one or more beams for carrying random access messages, and is used for the access network device to communicate with the terminal device based on the beam associated with the SSB and through the cell corresponding to the SSB. Among them, the SSB calibrates the associated beam by the unique SSB index.

[0038] When the terminal device can determine the index of the SSB of the neighboring cell based on the correspondence between the stored frequency point and the SSB index and the frequency point of the SSB of the neighboring cell, it means that the serving cell and the neighboring cell are synchronous cells, and the terminal device can report the index of the SSB of the neighboring cell and the signal measurement result of the SSB to the access network device. When the terminal device cannot determine the index of the SSB of the neighboring cell, it means that the serving cell and the neighboring cell are asynchronous cells, and the terminal device cannot report the index of the SSB of the asynchronous cell and the signal measurement result of the SSB to the access network device. In addition, the same-frequency neighboring cell with strong signal quality may interfere with the signal of the serving cell, causing the terminal device to reside in the cell with poor signal quality for a long time and unable to switch to the same-frequency neighboring cell with good signal quality.

[0039] The correspondence between the frequency point and the SSB index stored in the terminal device is the correspondence between the frequency point and the SSB index of the serving cell in which the terminal device is currently residing. The correspondence between the frequency point and the SSB index of the serving cell in which the terminal device is currently residing may be different from the correspondence between the frequency point and the SSB index of the serving cell in which the terminal device has historically resided.

[0040] As shown in Table 1, the correspondence between the frequency of the terminal device storage service cell 174 and the SSB index is: the service cell 174 includes 8 frequency ranges and corresponding SSB indexes, among which the frequency between [168, 936] corresponds to the SSB index 0, the frequency between [1812, 2580] corresponds to the SSB index 1, the frequency between [4008, 4776] corresponds to the SSB index 2, the frequency between [5652, 6420] corresponds to the SSB index 3, the frequency between [7848, 8616] corresponds to the SSB index 4, the frequency between [9492, 10260] corresponds to the SSB index 5, the frequency between [11688, 12456] corresponds to the SSB index 6, and the frequency between [13332, 14100] corresponds to the SSB index 7.

[0041] Table 1. Correspondence between the frequency of serving cell 174 and the index of SSB

[0042] Index of SSB Frequency 0 [168，936] 1 [1812，2580] 2 [4008，4776] 3 [5652，6420] 4 [7848，8616] 5 [9492，10260] 6 [11688，12456] 7 [13332，14100]

[0043] The frequency of the SSB of neighboring cell 420 is 170. Based on the correspondence between the eight frequencies and SSB indexes of serving cell 174 shown in Table 1 and the frequency of the SSB of neighboring cell 420, the terminal device determines that the frequency 170 of the SSB of neighboring cell 420 is between [168, 936] and the corresponding SSB index is 0. The terminal device determines that the index of the SSB of neighboring cell 420 is 0. The terminal device can determine the index of the SSB of neighboring cell 420 based on the correspondence in Table 1, indicating that neighboring cell 420 and serving cell 174 are synchronized cells.

[0044] The frequency of the SSB of the neighboring cell 419 is 1000. Based on the correspondence between the eight frequency points of the serving cell 174 and the SSB index shown in Table 1 above, the terminal device finds that the frequency point 1000 of the neighboring cell 419 is not within the range of the eight frequency points in Table 1. The terminal device cannot determine the index of the SSB of the neighboring cell 419 based on the correspondence in Table 1, indicating that the neighboring cell 419 and the serving cell 174 are asynchronous cells.

[0045] (IV) Signal measurement results of synchronization signal block SSB

[0046] The signal measurement result of the SSB indicates the signal quality of the SSB. The signal measurement result of the SSB includes one or more of the following parameters: reference signal receiving power (RSRP), received signal strength indicator (RSSI), reference signal received quality (RSRQ), and signal to interference noise ratio (SINR).

[0047] Among them, RSRP is used to reflect the path loss strength of the current channel and is used for cell coverage measurement and cell selection / reselection and switching; RSSI is used to reflect the received signal strength and interference level of the current channel; RSRQ is used to reflect and indicate the signal-to-noise ratio and interference level of the current channel quality; SINR is used to reflect the link quality of the current channel and is an important indicator for measuring the performance parameters of terminal equipment.

[0048] Signal measurement is the foundation of mobility management, a crucial component of wireless mobile communications. Mobility management ensures that the communication link between access network equipment and terminal devices is not interrupted due to terminal device movement. Based on the terminal device's state, mobility management can be divided into two parts: idle state mobility management and connected state mobility management. In the idle state, mobility management primarily refers to the cell selection / reselection process, while in the connected state, mobility management primarily refers to cell handover. Both cell selection / reselection and handover are based on signal measurement results.

[0049] (5) Physical Broadcast Channel (PBCH)

[0050] PBCH is used for radio frame number synchronization and SIB1 configuration. PBCH carries the demodulation reference signal (DMRS) required for demodulating PBCH and the master information block (MIB) for obtaining cell parameter information. The SSB index can be obtained by parsing the DMRS. The terminal device reports the SSB signal measurement results to the access network device using the SSB index. The access network device determines the SSB-associated beam for receiving data based on the SSB index.

[0051] The MIB includes the necessary parameter configuration information required to parse SIB1. For example, the MIB includes information about the subcarrier spacing applied to SIB1 and the scheduling information of SIB1. SIB1 includes timer and constant information used by terminal devices in idle and connected states. By parsing the MIB in the PBCH, the scheduling information of SIB1 is obtained, and the SIB1 of the cell is received based on the scheduling information of SIB1, the parameter information of the cell can be obtained. The parameter information of the cell includes but is not limited to: the bandwidth, frame number, subframe number, frequency band, etc. of the cell. Based on the parameter information of the cell obtained by parsing the MIB and SIB1, the terminal device determines whether the cell can be resided.

[0052] The method provided in the embodiment of the present application is applied to a wireless communication system. The method provided in the embodiment of the present application can be applied to various communication systems, for example, an Internet of Things (IoT) system, a narrowband Internet of Things (NB-IoT) system, a long term evolution (LTE) system, a fifth-generation (5G) communication system, an LTE and 5G hybrid architecture, a 5G new radio (NR) system, and new communication systems emerging in future communication developments.

[0053] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0054] The term "comprising" and any variations thereof in the specification and claims of the present invention and the accompanying drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or modules is not limited to the listed steps or modules, but may optionally include steps or modules not listed, or may optionally include other steps or modules inherent to the process, method, product, or apparatus.

[0055] Figure 1 FIG. 1 is a schematic diagram of a system architecture of a communication system in an embodiment. The solution in this application is applicable to the communication system. The communication system may include at least one access network device and at least one terminal device. Figure 1 Take the communication system including an access network device and a terminal device as an example. Figure 1As shown, the terminal device 101 decodes the physical broadcast channel PBCH in the first synchronization signal block SSB sent by the first co-frequency neighboring cell of the terminal device 101 to obtain the index of the first SSB. The first co-frequency neighboring cell adopts time division duplex mode for communication, and the first co-frequency neighboring cell is asynchronous with the service cell of the terminal device; the terminal device 101 measures the first SSB to obtain the signal measurement result of the first SSB; the terminal device 101 reports the signal measurement result of the first SSB and the index of the first SSB to the access network device 102.

[0056] The access network device involved in the embodiments of the present application is an entity on the network side for transmitting or receiving signals, which can be used to convert received air frames into Internet protocol (IP) packets and serve as a router between the terminal device and the rest of the access network, wherein the rest of the access network may include an IP network, etc. The access network device can also coordinate the attribute management of the air interface. For example, the access network device can be an evolutionary Node B (eNB or e-NodeB) in LTE, a new radio controller (NR controller), a gNode B (gNB) in a 5G system, a centralized unit, a new wireless base station, a radio remote module, a micro base station, a relay, a distributed unit, a transmission reception point (TRP) or a transmission point (TP) or any other wireless access device, but the embodiments of the present application are not limited thereto.

[0057] The terminal device involved in the embodiments of the present application is an entity on the user side for receiving or transmitting signals. The terminal device can be a device that provides voice and / or data connectivity to the user, for example, a handheld device with wireless connection function, a vehicle-mounted device, etc. The terminal device can also be other processing devices connected to a wireless modem. The terminal device can communicate with a radio access network (RAN). The terminal device can also be called a wireless terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a mobile station, a remote station, an access point, a remote terminal, an access terminal, a user terminal, a user agent, a user device, or a user equipment (UE), etc. The terminal device can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, for example, a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device, which exchanges voice and / or data with a radio access network. For example, the terminal device may also be a personal communication service (PCS) phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), etc. Common terminal devices include, for example, mobile phones, tablet computers, laptop computers, PDAs, mobile internet devices (MIDs), and wearable devices such as smart watches, smart bracelets, and pedometers, but the embodiments of the present application are not limited thereto.

[0058] The embodiment of the present application provides an information reporting method and apparatus thereof, which can timely report the measurement results of the same-frequency neighboring cells when the same-frequency cells are not synchronized in TDD mode. The information reporting method provided by the embodiment of the present application is further described in detail below:

[0059] See Figure 2 , Figure 2 This is a flow chart of an information reporting method provided by an embodiment of the present application. Figure 2As shown, the information reporting method includes the following S201 to S203. Figure 2 The method shown is performed by a terminal device, or the subject may be a chip in the terminal device.

[0060] S201. The terminal device decodes the physical broadcast channel PBCH in the first synchronization signal block SSB sent by the first co-frequency neighboring cell of the terminal device to obtain the index of the first SSB. The first co-frequency neighboring cell adopts the time division duplex mode for communication; the first co-frequency neighboring cell is asynchronous with the service cell of the terminal device.

[0061] In an embodiment of the present application, the first co-frequency neighboring cell is a co-frequency neighboring cell adjacent to the serving cell where the terminal device is currently residing. The PBCH carries the demodulation reference signal (DMRS) required for demodulating the PBCH, the master information block MIB and SIB1 for obtaining cell parameter information. The terminal device can decode the DMRS carried by the PBCH in the first SSB to obtain the index of the first SSB. Optionally, the terminal device can parse the MIB and SIB1 carried by the first PBCH to obtain parameter information of the first co-frequency neighboring cell. Based on the parameter information of the first co-frequency neighboring cell, the terminal device determines whether the first co-frequency neighboring cell can reside.

[0062] In an embodiment of the present application, each co-frequency neighboring cell includes one or more synchronization signal blocks SSB. Each synchronization signal block SSB is composed of a PSS, an SSS and a PBCH. The terminal device decodes the DMRS carried by the PBCH to obtain the index of the SSB. The index of each SSB is associated with an identifier (beam ID) of a beam used for communication in the co-frequency neighboring cell. When there are multiple first synchronization signal blocks SSB sent by the first co-frequency neighboring cell, the terminal device decodes the DMRS carried by the PBCH in each first synchronization signal block SSB separately to obtain the indexes of multiple first SSBs. The index of each first SSB is associated with a different beam identifier.

[0063] For example, the first synchronization signal blocks SSB sent by the first co-frequency neighboring cell are two, namely SSB1 and SSB2. Figure 3 As shown in the SSB structure diagram, SSB1 consists of PSS1, SSS1, and PBCH1, and SSB2 consists of PSS2, SSS2, and PBCH2. The terminal device decodes DMRS1 carried by PBCH1 to obtain the index of SSB1, and decodes DMRS2 carried by PBCH2 to obtain the index of SSB2. The SSB1 index is associated with the identifier of beam 1, and the SSB2 index is associated with the identifier of beam 2.

[0064] The terminal device parses the main information block MIB carried by the PBCH in SSB1 and SSB2 to obtain the scheduling information of SIB1, receives SIB1 of the first co-frequency neighboring cell 419 based on the scheduling information of SIB1, and parses SIB1 of the first co-frequency neighboring cell 419 to obtain parameter information of the first co-frequency neighboring cell 419 (including parameter information such as the cell's bandwidth, frame number, subframe number, frequency point and frequency band).

[0065] S202. The terminal device measures the first SSB and obtains a signal measurement result of the first SSB.

[0066] It should be noted that the execution order of step S202 and step S201 is not specific. Step S202 can be executed at the same time as step S201, before step S201, or after step S201, which is not limited in the embodiment of the present application.

[0067] In one implementation, the terminal device measures the first SSB to obtain a signal measurement result of the first SSB, where the signal measurement result of the first SSB includes one or more of the following parameters: reference signal received power (RSRP), received signal strength indicator (RSSI), reference signal received quality (RSRQ), and signal-to-interference-plus-noise ratio (SINR). The signal measurement result of the first SSB may also include other parameters, which are not limited in the embodiments of the present application.

[0068] S203. The terminal device reports the signal measurement result of the first SSB and the index of the first SSB to the access network device.

[0069] Accordingly, the access network device can receive the signal measurement result of the first SSB and the index of the first SSB. After the access network device receives the index of the first SSB and the signal measurement result, if the signal measurement result of the first SSB (representing the signal quality of the first co-frequency neighboring area) meets the preset switching condition, it switches from the serving cell to the first co-frequency neighboring area. The access network device determines the beam for transmitting data based on the beam identifier associated with the index of the first SSB. The preset switching condition may be that the signal quality of the first co-frequency neighboring area is better than the signal quality of the serving cell.

[0070] For example, the terminal device reports the index of SSB1 of the first co-frequency neighboring cell 419 and the signal measurement result of SSB1 to the access network device. If the signal measurement result of SSB1 meets the preset switching condition, the access network device switches from the serving cell to the first co-frequency neighboring cell. Based on the identifier of beam 1 associated with the index of SSB1, the access network device determines that beam 1 is the beam used for data transmission.

[0071] In one implementation, the terminal device obtains a reporting condition for screening the first co-frequency neighboring zone, and the reporting condition may be that the signal quality indicated by the signal measurement result of the first SSB meets a preset value. The terminal device obtains the parameter information of the first co-frequency neighboring zone based on parsing the MIB and SIB1 of the first co-frequency neighboring zone, and determines whether the parameter message of the first co-frequency neighboring zone meets the reporting condition. If the reporting condition is met, indicating that the first co-frequency neighboring zone can be resident, the terminal device reports the index of the first SSB of the first co-frequency neighboring zone and the signal measurement result to the access network device. The access network device may be an access network device corresponding to the service cell, or an access network device corresponding to the first co-frequency neighboring zone.

[0072] Specifically, when there is one first synchronization signal block SSB in the first co-frequency neighboring cell and the only first SSB obtained by decoding the first PBCH meets the reporting conditions, the terminal device reports the index of the first SSB and the signal measurement result to the access network device. When there are multiple first synchronization signal blocks SSB in the first co-frequency neighboring cell and multiple first SSBs are obtained by decoding the PBCH in the first SSB, the terminal device reports the index of the first SSB that meets the reporting conditions and the signal measurement result to the access network device.

[0073] In one implementation, when a terminal device reports multiple first SSB indices and signal measurement results to an access network device, the access network device determines a target first SSB from among the multiple first SSBs based on the signal qualities of the multiple first SSBs. The access network device determines a beam for data transmission based on a beam identifier associated with the index of the target first SSB.

[0074] For example, the terminal device reports the index of SSB1 of the first co-frequency neighboring cell, the signal measurement result of SSB1, the index of SSB2, and the signal measurement result of SSB2 to the access network device, and the access network device switches from the serving cell to the first co-frequency neighboring cell. The signal quality of SSB1 is better than the signal quality of SSB2, and the access network device determines SSB1 as the target first SSB. Based on the identifier of beam 1 associated with the index of SSB1, the access network device determines that beam 1 is the beam used for data transmission.

[0075] pass Figure 2In the described information reporting method, a terminal device decodes the physical broadcast channel (PBCH) in the first synchronization signal block (SSB) sent by the terminal device's first co-frequency neighboring cell (which can be a synchronous cell or an asynchronous cell) to obtain the index of the first SSB. The first co-frequency neighboring cell uses time division duplex mode for communication and is asynchronous with the serving cell. The terminal device measures the first SSB to obtain a signal measurement result of the first SSB. The terminal device reports the signal measurement result of the first SSB and the index of the first SSB to the access network device. In TDD mode, the terminal device decodes the PBCH in the SSB sent by the asynchronous cell to obtain the index of the asynchronous cell's SSB, and can promptly report the measurement result of the asynchronous cell, thereby switching to a co-frequency neighboring cell with good signal quality.

[0076] See also Figure 4 , Figure 4 This application provides a flowchart of another information reporting method provided by the embodiment of this application. Figure 4 As shown, the information reporting method includes steps S401 to S407:

[0077] S401, the terminal device determines that the first co-frequency neighboring cell is asynchronous with the serving cell of the terminal device.

[0078] In an embodiment of the present application, the terminal device can determine that the first co-frequency neighboring zone is asynchronous with the service cell of the terminal device based on the correspondence between the stored frequency points and the index of the SSB, and the frequency point of the first SSB. Specifically, the terminal device obtains the first SSB of the first co-frequency neighboring zone, and determines the frequency point of the first SSB based on the first PSS and the first SSS in the first SSB. If the frequency point of the first SSB is within the n-th frequency point range of the service cell, it is determined that the first co-frequency neighboring zone is synchronized with the service cell of the terminal device, and the SSB index corresponding to the n-th frequency point range of the service cell is determined to be the index of the first SSB. If the frequency point of the first SSB is not within the n-frequency point range of the service cell, it is determined that the first co-frequency neighboring zone is asynchronous with the service cell of the terminal device.

[0079] For example, the terminal device obtains the first SSB of the first co-frequency neighboring cell 419, and determines that the frequency of the first SSB is 1000 based on the first PSS and the first SSS in the first SSB. Based on the correspondence between the 8 frequency points and SSB indexes of the serving cell 174 shown in Table 1 above, the terminal device determines that the frequency point of the first SSB is not within the frequency point range corresponding to the SSB indexes 0 to 7, and determines that the first co-frequency neighboring cell 419 is asynchronous with the serving cell 174.

[0080] S402, the terminal device decodes the physical broadcast channel PBCH in the first synchronization signal block SSB sent by the first co-frequency neighboring cell of the terminal device to obtain the index of the first SSB. The first co-frequency neighboring cell adopts time division duplex mode for communication, and the first co-frequency neighboring cell is asynchronous with the serving cell.

[0081] It should be noted that the execution process of step S402 can be found in Figure 2 The specific description of the terminal device decoding the physical broadcast channel PBCH in the first synchronization signal block SSB in step S201 is not repeated here.

[0082] S403: The terminal device measures the first SSB and obtains a signal measurement result of the first SSB.

[0083] It should be noted that the execution process of step S403 can be found in Figure 2 The specific description of step S202 in will not be repeated here.

[0084] S404, the terminal device reports the signal measurement result of the first SSB and the index of the first SSB to the access network device.

[0085] It should be noted that the execution process of step S404 can be found in Figure 2 The specific description of the terminal device reporting the signal measurement results of the first SSB and the index of the first SSB to the access network device in step S203 is not repeated here.

[0086] S405, the terminal device decodes the physical broadcast channel PBCH in the second synchronization signal block SSB sent by the second co-frequency neighboring cell of the terminal device, obtains the index of the second SSB, and the second co-frequency neighboring cell is synchronized with the service cell of the terminal device.

[0087] In one implementation, the second co-frequency neighboring area is a synchronous neighboring area measured after the first co-frequency neighboring area. The terminal device decodes the physical broadcast channel PBCH in the second synchronization signal block SSB (the second synchronization signal block SSB may be one or more) sent by the second co-frequency neighboring area of the terminal device to obtain the index of the second SSB. Specifically, the terminal device decodes the DMRS carried by the second PBCH to obtain the index of the first SSB, parses the MIB and SIB1 carried by the first PBCH, and obtains the parameter information of the first co-frequency neighboring area. Based on the parameter information of the second co-frequency neighboring area, the terminal device determines whether the second co-frequency neighboring area can be resident. That is to say, the terminal device measures the first asynchronous cell and all subsequent synchronous cells, and adopts the method of PBCH decoding of SSB to obtain the index of SSB of the first asynchronous cell and all subsequent synchronous cells.

[0088] In one implementation, when the second synchronization signal block SSB sent by the second co-frequency neighboring cell is multiple, the terminal device decodes the DMRS carried by the PBCH in each second synchronization signal block SSB respectively, and obtains the index of the multiple second SSBs and the parameter information of the second co-frequency neighboring cell. The index of each second SSB is associated with a different beam identifier. For example, when the second co-frequency neighboring cell sends two second synchronization signal blocks SSB, namely SSB3 and SSB4, the terminal device decodes the PBCH in SSB3 and SSB4 respectively, and obtains the index of SSB3, the index of SSB4 and the parameter information of the second co-frequency neighboring cell.

[0089] S406: The terminal device measures the second SSB and obtains a signal measurement result of the second SSB.

[0090] It should be noted that the execution order of step S406 and step S405 is not specific. Step S406 can be executed at the same time as step S405, before step S405, or after step S405, which is not limited in this embodiment of the application.

[0091] S407, the terminal device reports the signal measurement result of the second SSB and the index of the second SSB to the access network device.

[0092] In one implementation, the terminal device obtains a reporting condition for filtering the second co-frequency neighboring cell to be reported. The terminal device obtains parameter information of the second co-frequency neighboring cell based on parsing the MIB and SIB1 of the second co-frequency neighboring cell, and determines whether the parameter message of the second co-frequency neighboring cell meets the reporting condition. If the reporting condition is met, indicating that the second co-frequency neighboring cell can be resident, the terminal device reports the index of the second SSB of the second co-frequency neighboring cell and the signal measurement result to the access network device.

[0093] Specifically, when there is one second synchronization signal block SSB in the second co-frequency neighboring cell and the only second SSB obtained by decoding the second PBCH meets the reporting conditions, the terminal device reports the index of the second SSB and the signal measurement result to the access network device. When there are multiple second synchronization signal blocks SSB in the second co-frequency neighboring cell and multiple second SSBs are obtained by decoding the PBCH in the second SSB, the terminal device reports the index of the second SSB that meets the reporting conditions and the signal measurement result to the access network device.

[0094] Accordingly, after the access network device receives the index and signal measurement result of the first SSB and the index and signal measurement result of the second SSB reported by the terminal device, the access network device switches from the serving cell to the neighboring cell corresponding to the SSB that meets the switching condition. The switching condition can be: the SSB with the best signal quality among the signal measurement result of the first SSB, the signal measurement result of the second SSB, and the signal measurement result of the SSB of the serving cell.

[0095] If the signal measurement result of the first SSB (representing the signal quality of the first co-frequency neighboring cell) is the best, the service cell is switched to the first co-frequency neighboring cell, and the beam for transmitting data is determined based on the beam identifier associated with the index of the first SSB in the first co-frequency neighboring cell. When there are multiple indices of the first SSB, the access network can select the beam corresponding to the first SSB with the best signal quality.

[0096] If the signal measurement result of the second SSB (representing the signal quality of the second co-frequency neighboring cell) is the best, the service cell is switched to the second co-frequency neighboring cell. The beam for transmitting data is determined based on the beam identifier associated with the index of the second SSB in the second co-frequency neighboring cell. When there are multiple indices of the second SSB, the access network can select the beam corresponding to the second SSB with the best signal quality.

[0097] If the signal measurement result of the SSB of the serving cell is the best, the cell continues to stay in the current serving cell.

[0098] For example, the terminal device reports to the access network device the index of SSB1 of the first co-frequency neighboring cell, the signal measurement result of SSB1, the index of SSB2 and the signal measurement result of SSB2, the index of SSB3 of the second co-frequency neighboring cell, the signal measurement result of SSB3, the index of SSB4 and the signal measurement result of SSB4. According to the signal measurement results of each SSB, the signal quality is determined from strong to weak as follows: SSB1>SSB2>SSB3>SSB4>SSB of the serving cell. The access network device switches to the first co-frequency neighboring cell and determines the beam used to transmit data based on the beam identifier associated with the index of SSB1.

[0099] The first co-frequency neighboring cell is the asynchronous cell measured by the terminal device, and the second co-frequency neighboring cell is the synchronous cell measured after the first co-frequency neighboring cell. The terminal device decodes the PBCH in the SSB sent by the first co-frequency neighboring cell to obtain the index of the first SSB; the terminal device decodes the PBCH in the SSB sent by the synchronous cell measured after the first co-frequency neighboring cell to obtain the index of the second SSB. In other words, the terminal device decodes the PBCH in the SSB of the first measured asynchronous cell to obtain the index of the first SSB; for the synchronous cell measured after the asynchronous cell, the terminal device decodes the PBCH in the SSB sent by the synchronous cell to obtain the index of the second SSB; for the asynchronous cell measured after the asynchronous cell, the terminal device also decodes the PBCH in the SSB sent by the asynchronous cell to obtain the index of the SSB. For the co-frequency cells measured after the first asynchronous cell, the terminal device does not need to determine whether they are synchronous cells or asynchronous cells. All of them are processed in the same way as asynchronous cells, decoding the PBCH in the SSB to obtain the index of the cell's SSB. This simplifies the process, has high feasibility, and simple control process.

[0100] pass Figure 4 In the described information reporting method, the terminal device determines that the first co-frequency neighboring cell is asynchronous with the terminal device's serving cell, decodes the physical broadcast channel (PBCH) in the first synchronization signal block (SSB) sent by the first co-frequency neighboring cell, obtains the index of the first SSB, and reports the signal measurement result of the first SSB and the index of the first SSB to the access network device. The terminal device decodes the PBCH in the second synchronization signal block (SSB) sent by the second co-frequency neighboring cell, obtains the index of the second SSB, and the second co-frequency neighboring cell is synchronized with the serving cell; the terminal device reports the signal measurement result of the second SSB and the index of the second SSB to the access network device. In other words, the terminal device does not need to determine whether the second co-frequency neighboring cell is a synchronous cell or an asynchronous cell. For the first asynchronous cell and all subsequent co-frequency cells measured, whether synchronous or asynchronous, all are processed in the same manner as asynchronous cells, and the PBCH in the SSB is decoded to obtain the index of the cell's SSB. This simplifies the process, improves feasibility, and simplifies the control process.

[0101] See also Figure 5 , Figure 5 This application provides a flowchart of another information reporting method provided by the embodiment of this application. Figure 5 As shown, the information reporting method includes steps S501 to S507:

[0102] S501, the terminal device determines that the first co-frequency neighboring cell is asynchronous with the serving cell of the terminal device.

[0103] It should be noted that the execution process of step S501 can be found in Figure 4The specific description of the terminal device determining in step S401 that the first co-frequency neighboring cell is asynchronous with the service cell of the terminal device will not be repeated here.

[0104] S502, the terminal device decodes the physical broadcast channel PBCH in the first synchronization signal block SSB sent by the first co-frequency neighboring cell of the terminal device to obtain the index of the first SSB. The first co-frequency neighboring cell adopts time division duplex mode for communication, and the first co-frequency neighboring cell is asynchronous with the service cell.

[0105] It should be noted that the execution process of step S502 can be found in Figure 2 In step S201, the terminal device decodes the physical broadcast channel PBCH in the first synchronization signal block SSB sent by the first co-frequency neighboring area of the terminal device, and obtains a specific description of the index of the first SSB, which is not repeated here.

[0106] S503: The terminal device measures the first SSB and obtains a signal measurement result of the first SSB.

[0107] It should be noted that the execution process of step S503 can be found in Figure 2 In step S202, the terminal device measures the first SSB and obtains a specific description of the signal measurement result of the first SSB, which will not be repeated here.

[0108] S504, the terminal device reports the signal measurement result of the first SSB and the index of the first SSB to the access network device.

[0109] It should be noted that the execution process of step S504 can be found in Figure 2 The specific description of the terminal device reporting the signal measurement results of the first SSB and the index of the first SSB to the access network device in step S203 is not repeated here.

[0110] S505, the terminal device determines whether the second co-frequency neighboring cell of the terminal device is synchronized with the service cell of the terminal device; if the second co-frequency neighboring cell is synchronized with the service cell of the terminal device, the index of the second SSB is determined based on the correspondence between the frequency point and the SSB index stored in the terminal device, and the frequency point where the second SSB sent by the second co-frequency neighboring cell is located.

[0111] In one implementation, the terminal device determines the frequency of the second SSB based on the PSS and SSS of the second SSB of the second co-frequency neighboring cell. The terminal device can determine whether the frequency of the second SSB is within the frequency range of the stored service cell based on the correspondence between the frequency of the stored service cell and the index of the SSB, and the frequency of the second SSB. If the frequency of the second SSB is within the frequency range of the stored service cell, it is determined that the second co-frequency neighboring cell is synchronized with the service cell of the terminal device, and the second co-frequency neighboring cell is a synchronized cell. Based on the correspondence between the frequency and the SSB index stored by the terminal device, the index of the SSB corresponding to the frequency where the second SSB is located in the corresponding relationship is determined to be the index of the second SSB.

[0112] For example, the frequency of the SSB of the second co-frequency neighboring cell 420 is 170. The terminal device determines that the frequency 170 of the SSB of the second co-frequency neighboring cell 420 is between [168, 936] based on the correspondence between the 8 frequency points and the SSB index of the serving cell 174 shown in Table 1 above, and the frequency point of the SSB of the second co-frequency neighboring cell 420, and the corresponding SSB index is 0. The terminal device determines that the index of the SSB of the second co-frequency neighboring cell 420 is 0.

[0113] S506: The terminal device measures the second SSB and obtains a signal measurement result of the second SSB.

[0114] It should be noted that the execution process of step S506 can be found in Figure 4 In step S406, the terminal device measures the second SSB and obtains a specific description of the signal measurement result of the second SSB, which will not be repeated here.

[0115] S507, the terminal device reports the signal measurement result of the second SSB and the index of the second SSB to the access network device.

[0116] It should be noted that the execution process of step S507 can be found in Figure 4 The specific description of step S407 in which the terminal device reports the signal measurement result of the second SSB and the index of the second SSB to the access network device will not be repeated here.

[0117] The first co-frequency neighboring cell is the first asynchronous cell measured by the terminal device, and the second co-frequency neighboring cell is the synchronous cell measured after the first co-frequency neighboring cell. The terminal device decodes the PBCH in the SSB transmitted by the first asynchronous cell to obtain the index of the first SSB. Based on the correspondence between the frequency and SSB index stored by the terminal device, the terminal device determines the index of the second SSB of the synchronous cell measured after the first asynchronous cell. The terminal device decodes the PBCH in the SSB transmitted by the asynchronous cell measured after the first asynchronous cell to obtain the index of the SSB of the asynchronous cell. In other words, the terminal device only decodes the PBCH in the SSB transmitted by the asynchronous cell to obtain the index of the SSB of the asynchronous cell. For a newly appeared co-frequency cell, the terminal device first determines whether the co-frequency cell is a synchronous cell. If so, the index of the SSB of the co-frequency cell is determined based on the correspondence between the frequency and SSB index stored by the terminal device and the frequency of the co-frequency cell. If not (i.e., if the co-frequency cell is an asynchronous cell), the terminal device then decodes the PBCH in the SSB transmitted by the asynchronous cell to obtain the index of the SSB of the asynchronous cell.

[0118] pass Figure 5 In the described information reporting method, a terminal device decodes the PBCH in an SSB transmitted by a first co-frequency neighboring cell to obtain the index of the first SSB, and then reports the signal measurement result of the first SSB and the index of the first SSB to the access network device. The terminal device determines the index of a second SSB based on the stored correspondence between frequency and SSB index, as well as the SSB transmitted by the synchronous cell. The second co-frequency neighboring cell is synchronized with the serving cell, and the terminal device reports the signal measurement result of the second SSB and the index of the second SSB to the access network device. The terminal device decodes the PBCH in an SSB transmitted by an asynchronous cell to obtain the index of the asynchronous cell's SSB, and then determines the index of the synchronous cell's SSB based on the stored correspondence between frequency and SSB index, as well as the frequency of the SSB transmitted by the synchronous cell. This method avoids reporting delays caused by decoding the PBCH in an SSB transmitted by a newly emerging synchronous cell, thereby reducing load. In TDD mode, when co-frequency cells are out of sync, the terminal device can promptly report the measurement results of the co-frequency neighboring cell and promptly switch to a co-frequency neighboring cell with better signal quality.

[0119] See also Figure 6 , Figure 6 This application provides a flowchart of another information reporting method provided by the embodiment of this application. Figure 6 As shown, the information reporting method includes steps S601 to S607:

[0120] S601, the terminal device decodes the physical broadcast channel PBCH in the first synchronization signal block SSB sent by the first co-frequency neighboring cell of the terminal device to obtain the index of the first SSB. The first co-frequency neighboring cell adopts time division duplex mode for communication, and the first co-frequency neighboring cell is asynchronous with the serving cell.

[0121] It should be noted that the execution process of step S601 can be found in Figure 2 In step S201, the terminal device decodes the physical broadcast channel PBCH in the first synchronization signal block SSB sent by the first co-frequency neighboring area of the terminal device, and obtains a specific description of the index of the first SSB, which is not repeated here.

[0122] S602: The terminal device measures the first SSB and obtains a signal measurement result of the first SSB.

[0123] It should be noted that the execution process of step S602 can be found in Figure 2 In step S202, the terminal device measures the first SSB and obtains a specific description of the signal measurement result of the first SSB, which will not be repeated here.

[0124] S603, the terminal device reports the signal measurement result of the first SSB and the index of the first SSB to the access network device.

[0125] It should be noted that the execution process of step S603 can be found in Figure 2 The specific description of the terminal device reporting the signal measurement results of the first SSB and the index of the first SSB to the access network device in step S203 is not repeated here.

[0126] S604, the terminal device decodes the physical broadcast channel PBCH in the second synchronization signal block SSB sent by the second co-frequency neighboring cell of the terminal device, obtains the index of the second SSB, and the second co-frequency neighboring cell is synchronized with the service cell of the terminal device.

[0127] It should be noted that the execution process of step S604 can be found in Figure 4 In step S405, the terminal device decodes the physical broadcast channel PBCH in the second synchronization signal block SSB sent by the second co-frequency neighboring area of the terminal device, and obtains a specific description of the index of the second SSB, which is not repeated here.

[0128] S605: The terminal device measures the second SSB and obtains a signal measurement result of the second SSB.

[0129] It should be noted that the execution process of step S605 can be found in Figure 4In step S406, the terminal device measures the second SSB and obtains a specific description of the signal measurement result of the second SSB, which will not be repeated here.

[0130] S606, the terminal device reports the signal measurement result of the second SSB and the index of the second SSB to the access network device.

[0131] It should be noted that the execution process of step S606 can be found in Figure 4 The specific description of the terminal device reporting the signal measurement result of the second SB and the index of the second SSB to the access network device in step S407 is not repeated here.

[0132] There is no particular order in which steps S604 to S606 and steps S601 to S603 are executed. Steps S604 to S606 can be executed simultaneously with steps S601 to S603, before steps S601 to S603, or after steps S601 to S603. This is not limited in the embodiments of the present application.

[0133] The terminal device does not need to determine whether the first co-frequency neighboring cell and the second co-frequency neighboring cell are asynchronous with the serving cell. Regardless of whether the first co-frequency neighboring cell and the second co-frequency neighboring cell are asynchronous or synchronous with the serving cell, the terminal device decodes the PBCH in the SSB to obtain the SSB index. In other words, the terminal device decodes the PBCH in the SSB to obtain the SSB index for all co-frequency neighboring cells of the serving cell.

[0134] pass Figure 6 In the described information reporting method, the terminal device uses PBCH decoding of SSB for all co-frequency cells to obtain the index of SSB. The terminal device does not need to determine whether the first co-frequency neighboring cell and the second co-frequency neighboring cell are synchronous cells or asynchronous cells, which can reduce the process and improve reporting efficiency.

[0135] Figure 7 The communication device 700 shown can be used to perform the above Figure 2-Figure 6 The communication device 700 may also be a chip system. Figure 7 The communication device 700 shown may include a processing unit 701 and a communication unit 702. Detailed descriptions of each unit are as follows:

[0136] Processing unit 701 is configured to: decode, by a terminal device, a physical broadcast channel (PBCH) in a first synchronization signal block (SSB) sent by a first co-frequency neighboring cell of the terminal device, to obtain an index of the first SSB, where the first co-frequency neighboring cell communicates in a time division duplex mode, and the first co-frequency neighboring cell is asynchronous with a serving cell of the terminal device; and measure the first SSB by the terminal device to obtain a signal measurement result of the first SSB.

[0137] Communication unit 702 is used for the terminal device to report the signal measurement result of the first SSB and the index of the first SSB to the access network device.

[0138] In a possible implementation, the processing unit 701 is further configured for the terminal device to determine that the first co-frequency neighboring cell is asynchronous with the serving cell of the terminal device.

[0139] In one possible implementation, the processing unit 701 is also used by the terminal device to decode the physical broadcast channel PBCH in the second synchronization signal block SSB sent by the second co-frequency neighboring cell of the terminal device to obtain the index of the second SSB, and the second co-frequency neighboring cell is synchronized with the service cell of the terminal device; the terminal device measures the second SSB to obtain the signal measurement result of the second SSB; the communication unit 702 is also used by the terminal device to report the signal measurement result of the second SSB and the index of the second SSB to the access network device.

[0140] In one possible implementation, the processing unit 701 is also used by the terminal device to determine whether the second co-frequency neighboring zone of the terminal device is synchronized with the service cell of the terminal device; if the second co-frequency neighboring zone is synchronized with the service cell of the terminal device, the index of the second SSB is determined based on the correspondence between the frequency point and the SSB index stored by the terminal device, and the frequency point at which the second SSB sent by the second co-frequency neighboring zone is located; the terminal device measures the second SSB to obtain a signal measurement result of the second SSB; the communication unit 702 is also used by the terminal device to report the signal measurement result of the second SSB and the index of the second SSB to the access network device.

[0141] In one possible implementation, the processing unit 701 is further used to: the terminal device determines that the first co-frequency neighboring cell is asynchronous with the service cell of the terminal device based on the stored correspondence between the frequency point and the SSB index and the frequency point of the first SSB.

[0142] In one possible implementation, the processing unit 701 is also used for: the terminal device decodes the physical broadcast channel PBCH in the second synchronization signal block SSB sent by the second co-frequency neighboring cell of the terminal device to obtain the index of the second SSB, and the second co-frequency neighboring cell is synchronized with the service cell of the terminal device; the terminal device measures the second SSB to obtain the signal measurement result of the second SSB; the communication unit 702 is also used for the terminal device to report the signal measurement result of the second SSB and the index of the second SSB to the access network device.

[0143] Based on the description of the above method embodiment and device embodiment, the present application embodiment further provides a communication device 800. Figure 8 The communication device at least includes a communication interface 801, a processor 802 and a memory 803. The communication interface 801, the processor 802 and the memory 803 may be connected via a bus 804 or other means. Figure 8 The connections between the other components are shown in bold lines, which are only for illustration and not intended to be limiting. The bus can be divided into address bus, data bus, control bus, etc. Figure 8 Only one thick line is used in the diagram, but this does not mean that there is only one bus or one type of bus.

[0144] The memory 803 may include a read-only memory and a random access memory, and provides instructions and data to the processor 802. A portion of the memory 803 may also include a nonvolatile random access memory.

[0145] The processor 802 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. A general-purpose processor may be a microprocessor, or alternatively, the processor 802 may be any conventional processor. Specifically:

[0146] The memory 803 is used to store program instructions.

[0147] Processor 802, configured to call program instructions stored in memory 803 to implement the data processing function of the terminal device described above in this application;

[0148] The communication interface 801 is called to implement the sending and receiving operations of the above-mentioned terminal device in this application.

[0149] In an embodiment of the present application, the communication interface may be a transceiver, circuit, bus, module or other type of communication interface for communicating with other devices via a transmission medium. For example, the communication interface 801 is used in the communication device 800 so that the communication device 800 can communicate with other devices. The processor 802 uses the communication interface 801 to send and receive data and is used to implement the method of the above-mentioned method embodiment. The coupling in the embodiment of the present application is an indirect coupling or communication connection between devices, units or modules, which may be electrical, mechanical or other forms, and is used for information exchange between devices, units or modules. The specific connection medium between the above-mentioned communication interface 801, processor 802 and memory 803 is not limited in the embodiment of the present application.

[0150] The embodiments of the present invention and Figure 2-Figure 6 The method embodiments shown are based on the same concept and have the same technical effects. For specific principles, please refer to Figure 2-Figure 6 The description of the illustrated embodiment is omitted here.

[0151] As an example, Figure 9 This is a schematic diagram of the structure of another communication device 900 provided in an embodiment of the present application. The communication device 900 may be a server. The communication device 900 may perform the operations performed by the server in the above method embodiment.

[0152] For ease of explanation, Figure 9 Only the main components of the communication device 900 are shown. Figure 9 As shown, the communication device 900 includes a processor, a memory, a radio frequency circuit, an antenna, and an input / output device. The processor is mainly used to process the communication protocol and communication data, and to control the entire communication device 900, execute software programs, and process software program data, such as to support the communication device 900 to execute Figure 2-Figure 6 The process described. The memory is mainly used to store software programs and data. The radio frequency circuit is mainly used to convert baseband signals into radio frequency signals and process radio frequency signals. The antenna is mainly used to transmit and receive radio frequency signals in the form of electromagnetic waves. The communication device 900 may also include input and output devices, such as a touch screen, a display screen, a keyboard, etc., which are mainly used to receive data input by the user and output data to the user. It should be noted that some types of communication devices 900 may not have input and output devices.

[0153] When the communication device 900 is turned on, the processor can read the software program in the storage unit, interpret and execute the software program, and process the data of the software program. When data needs to be transmitted wirelessly, the processor performs baseband processing on the data to be sent and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal and then transmits the radio frequency signal to the outside in the form of electromagnetic waves through the antenna. When data is sent to the communication device 900, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor. The processor converts the baseband signal into data and processes the data.

[0154] Those skilled in the art will understand that for ease of explanation, Figure 9 Only one memory and processor are shown. In the actual communication device 900, there may be multiple processors and memories. The memory may also be called a storage medium or a storage device, etc., which is not limited in the embodiments of the present application.

[0155] As an optional implementation, the processor may include a baseband processor and a central processing unit (CPU). The baseband processor is mainly used to process the communication protocol and communication data, and the CPU is mainly used to control the entire communication device 900, execute software programs, and process software program data. Optionally, the processor may also be a network processor (NP) or a combination of a CPU and an NP. The processor may further include a hardware chip. The above-mentioned hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The above-mentioned PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL), or any combination thereof. The memory may include volatile memory, such as random-access memory (RAM); the memory may also include non-volatile memory, such as flash memory, a hard disk drive (HDD) or a solid-state drive (SSD); the memory may also include a combination of the above types of memory.

[0156] For example, in the embodiments of the present application, Figure 9 As shown, the antenna and radio frequency circuit with transceiver functions can be regarded as the communication unit 901 of the communication device 900 , and the processor with processing function can be regarded as the processing unit 902 of the communication device 900 .

[0157] The communication unit 901 may also be referred to as a transceiver, transceiver, transceiver device, transceiver unit, etc., and is used to implement transceiver functions. Optionally, the device in the communication unit 901 that implements the receiving function may be considered a receiving unit, and the device in the communication unit 901 that implements the transmitting function may be considered a transmitting unit, that is, the communication unit 901 includes a receiving unit and a transmitting unit. For example, the receiving unit may also be referred to as a receiver, a receiver, a receiving circuit, etc., and the transmitting unit may be referred to as a transmitter, a transmitter, or a transmitting circuit, etc.

[0158] In some embodiments, the communication unit 901 and the processing unit 902 may be integrated into one device or separated into different devices. In addition, the processor and the memory may also be integrated into one device or separated into different devices.

[0159] The communication unit 901 may be used to perform the sending and receiving operations of the communication device 900 in the above method embodiment. The processing unit 902 may be used to perform the data processing operations of the communication device 900 in the above method embodiment.

[0160] An embodiment of the present application also provides a computer-readable storage medium, which stores instructions. When the computer-readable storage medium is executed on a processor, the method flow of the above method embodiment is implemented.

[0161] The embodiment of the present application also provides a computer program product. When the computer program product runs on a processor, the method flow of the above method embodiment is implemented.

[0162] It should be noted that for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that this application is not limited by the order of the actions described, because according to this application, certain operations can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in this specification are all preferred embodiments, and the actions and modules involved are not necessarily required by this application.

[0163] The descriptions of the various embodiments provided in this application can refer to each other. The descriptions of each embodiment have their own focus. For parts not described in detail in a particular embodiment, please refer to the relevant descriptions of other embodiments. For the convenience and brevity of description, for example, the functions and operations performed by the various devices and equipment provided in the embodiments of this application can refer to the relevant descriptions of the method embodiments of this application. The various method embodiments and the various device embodiments can also refer to, be combined with, or quote each other.

[0164] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An information reporting method, characterized in that: The method comprises: The terminal device determines, based on the correspondence between the stored frequency point and the synchronization signal block SSB index and the frequency point of the first SSB sent by the first co-frequency neighboring area of the terminal device, that the first co-frequency neighboring area is asynchronous with the serving cell of the terminal device; The terminal device decodes the physical broadcast channel PBCH in the first SSB to obtain the index of the first SSB, and the first co-frequency neighboring cell adopts the time division duplex mode for communication; The terminal device measures the first SSB to obtain a signal measurement result of the first SSB; The terminal device reports the signal measurement results of the first SSB and the index of the first SSB to the access network device.

2. The method according to claim 1, characterized in that After the terminal device decodes a physical broadcast channel (PBCH) in a first synchronization signal block (SSB) sent by a first co-frequency neighboring cell of the terminal device and obtains an index of the first SSB, the method further includes: The terminal device decodes a physical broadcast channel PBCH in a second synchronization signal block SSB sent by a second co-frequency neighboring cell of the terminal device to obtain an index of the second SSB, where the second co-frequency neighboring cell is synchronized with the serving cell of the terminal device; The terminal device measures the second SSB to obtain a signal measurement result of the second SSB; The terminal device reports the signal measurement result of the second SSB and the index of the second SSB to the access network device.

3. The method according to claim 1, characterized in that After the terminal device decodes a physical broadcast channel (PBCH) in a first synchronization signal block (SSB) sent by a first co-frequency neighboring cell of the terminal device and obtains an index of the first SSB, the method further includes: Determining, by the terminal device, whether a second co-frequency neighboring cell of the terminal device is synchronized with a serving cell of the terminal device; If the second co-frequency neighboring cell is synchronized with the serving cell of the terminal device, determining the index of the second SSB based on the correspondence between the frequency point and the SSB index stored by the terminal device, and the frequency point at which the second SSB sent by the second co-frequency neighboring cell is located; The terminal device measures the second SSB to obtain a signal measurement result of the second SSB; The terminal device reports the signal measurement result of the second SSB and the index of the second SSB to the access network device.

4. The method according to claim 1, wherein The method further comprises: The terminal device decodes the physical broadcast channel PBCH in the second synchronization signal block SSB sent by the second co-frequency neighboring cell of the terminal device to obtain an index of the second SSB, where the second co-frequency neighboring cell is synchronized with the serving cell of the terminal device; The terminal device measures the second SSB to obtain a signal measurement result of the second SSB; The terminal device reports the signal measurement result of the second SSB and the index of the second SSB to the access network device.

5. A communication device, characterized in that: The device comprises: A processing unit is configured to determine, by a terminal device, based on a stored correspondence between a frequency point and a synchronization signal block (SSB) index and a frequency point of a first SSB sent by a first co-frequency neighboring cell of the terminal device, that the first co-frequency neighboring cell is asynchronous with a serving cell of the terminal device, decode a physical broadcast channel (PBCH) in the first SSB to obtain an index of the first SSB, and that the first co-frequency neighboring cell communicates in a time division duplex mode; and the terminal device measures the first SSB to obtain a signal measurement result of the first SSB; A communication unit is used for the terminal device to report the signal measurement result of the first SSB and the index of the first SSB to the access network device.

6. The device according to claim 5, characterized in that: The processing unit is further configured to decode, by the terminal device, a physical broadcast channel PBCH in a second synchronization signal block SSB sent by a second co-frequency neighboring cell of the terminal device, to obtain an index of the second SSB, where the second co-frequency neighboring cell is synchronized with the serving cell of the terminal device; and measure, by the terminal device, the second SSB to obtain a signal measurement result of the second SSB; The communication unit is also used by the terminal device to report the signal measurement results of the second SSB and the index of the second SSB to the access network device.

7. The device according to claim 5, characterized in that: The processing unit is further configured to determine, by the terminal device, whether the second co-frequency neighboring cell of the terminal device is synchronized with the serving cell of the terminal device; if the second co-frequency neighboring cell is synchronized with the serving cell of the terminal device, determining the index of the second SSB based on the correspondence between the frequency point and the SSB index stored by the terminal device, and the frequency point at which the second SSB sent by the second co-frequency neighboring cell is located; The terminal device measures the second SSB to obtain a signal measurement result of the second SSB; The communication unit is also used by the terminal device to report the signal measurement results of the second SSB and the index of the second SSB to the access network device.

8. The device according to claim 5, characterized in that: The processing unit is further configured to: decode, by the terminal device, a physical broadcast channel PBCH in a second synchronization signal block SSB sent by a second co-frequency neighboring cell of the terminal device, to obtain an index of the second SSB, where the second co-frequency neighboring cell is synchronized with the serving cell of the terminal device; and measure, by the terminal device, the second SSB to obtain a signal measurement result of the second SSB; The communication unit is also used by the terminal device to report the signal measurement results of the second SSB and the index of the second SSB to the access network device.

9. A communication device, characterized in that: The device comprises a processor and a communication interface, wherein the communication interface is used to communicate with other communication devices; the processor is used to run a program so that the communication device implements the method according to any one of claims 1 to 4.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores one or more instructions, and the one or more instructions are suitable for being loaded by a processor and executing the method according to any one of claims 1 to 4.

Images