CN109379751B - Neighbor cell reporting method and device, readable storage medium, user equipment and base station - Google Patents
Neighbor cell reporting method and device, readable storage medium, user equipment and base station Download PDFInfo
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- CN109379751B CN109379751B CN201710685102.5A CN201710685102A CN109379751B CN 109379751 B CN109379751 B CN 109379751B CN 201710685102 A CN201710685102 A CN 201710685102A CN 109379751 B CN109379751 B CN 109379751B
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Abstract
A method and a device for reporting neighboring cells, a readable storage medium, user equipment and a base station are provided, wherein the method for reporting neighboring cells comprises the following steps: receiving reporting indication information sent by a service base station, wherein the reporting indication information comprises a physical cell identifier, and a cell pointed by the physical cell identifier is a neighboring cell of the service cell; measuring the cell pointed by the physical cell identifier to obtain reporting information, wherein the reporting information at least comprises the period of a synchronous signal burst set of the cell pointed by the physical cell identifier; and reporting the reporting information to the service base station. By the technical scheme of the invention, the reporting of the neighboring cell can be enhanced, and the accuracy of UE measurement configuration is realized.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for reporting a neighboring cell, a readable storage medium, a user equipment, and a base station.
Background
An Automatic Neighbor Relation (ANR) characteristic is supported in a Long Term Evolution (LTE) system. The purpose of ANR is to ease the burden of manually managing neighbor relations. The current LTE ANR framework can be used for both intra-and inter-frequency, as well as for inter-Radio Access Technology (inter-RAT) cells. The main principle of LTE ANR is as follows: an LTE base station (eNB) instructs a User Equipment (UE) to find a neighboring cell on a target Radio Access Technology (Radio Access Technology RAT) frequency. And the UE reports the physical cell identification of the detected cell. The eNB instructs the UE to read parameters such as an LTE Cell Global Identifier (ECGI) of the detected Cell using the newly found physical Cell identity as a parameter. And after reading the relevant information of the new cell, the UE reports the relevant information to the eNB. The eNB updates the neighbor relation table.
In the prior art, with the development of wireless communication technology, New Radio (NR) technology is introduced by the third Generation Partnership Project (3 GPP). NR technology also supports ANR. That is, the UE in the LTE network may report information of the unknown NR neighboring cell to establish a neighboring relationship between the LTE serving cell and the NR neighboring cell; and reporting the information of the unknown NR adjacent region by the UE in the NR network so as to establish the adjacent relation between the NR service cell and the NR adjacent region. For the NR neighbor cell, the UE may report cell global identity, Tracking Area Code (TAC), and Public Land Mobile Network (PLMN) information.
However, it is expected that the base station acquires the neighbor cell information to configure measurement for the UE accessed later on for the cell, however, the base station can only acquire information such as a cell global identity, TAC, and PLMN by using an ANR mechanism in the existing LTE, and for a 5G system, the information still cannot be used for correctly configuring measurement for the UE, so that the UE accessed later cannot measure the cell in time, which may cause untimely handover and a radio link failure in a severe case.
Disclosure of Invention
The technical problem solved by the invention is how to enhance the neighbor cell reporting and realize the accuracy of UE measurement configuration.
In order to solve the above technical problem, an embodiment of the present invention provides a neighboring cell reporting method, where the neighboring cell reporting method includes: receiving reporting indication information sent by a service base station, wherein the reporting indication information comprises a physical cell identifier, and a cell pointed by the physical cell identifier is a neighboring cell of the service cell; measuring the cell pointed by the physical cell identifier to obtain reporting information, wherein the reporting information at least comprises the period of a synchronous signal burst set of the cell pointed by the physical cell identifier; and reporting the reporting information to the service base station.
Optionally, the measuring the cell pointed by the physical cell identifier includes: and detecting the synchronization signal block, the master information block and the system information block of the cell pointed by the physical cell identifier to obtain the cell global identifier and the cycle of the synchronization signal burst set of the cell pointed by the physical cell identifier, and adding the reported information.
Optionally, the measuring the cell pointed by the physical cell identifier further includes: and calculating the synchronization time difference between the cell pointed by the physical cell identifier and the service cell of the service base station so as to add the reported information.
Optionally, the calculating a synchronization time difference between the cell pointed by the physical cell identifier and the serving cell of the serving base station includes: and calculating a first time difference between an initial frame of the cell pointed by the physical cell identifier and an initial frame of the serving cell to add the reporting information, wherein the initial frame comprises an initial system frame number and an initial subframe number.
Optionally, the calculating a synchronization time difference between the cell pointed by the physical cell identifier and the serving cell of the serving base station includes: determining a first synchronization signal block with the strongest signal strength in a plurality of synchronization signal blocks of a cell pointed by the physical cell identifier; and calculating a second time difference between the first synchronization signal block and the starting frame of the serving cell, wherein the reporting information includes the second time difference and the identifier of the first synchronization signal block, or calculating a third time difference between the first synchronization signal block and the synchronization signal block of the serving cell, and the reporting information includes the third time difference and the identifier of the first synchronization signal block.
Optionally, the calculating a synchronization time difference between the cell pointed by the physical cell identifier and the serving cell of the serving base station includes: determining a plurality of second synchronization signal blocks with strongest signal intensity in a plurality of synchronization signal blocks of a cell pointed by the physical cell identifier; and respectively calculating fourth time differences between the second synchronization signal blocks and the initial frame of the serving cell, and calculating a mean value of the fourth time differences corresponding to the second synchronization signal blocks to add the reporting information.
Optionally, the synchronization time difference is represented by a synchronization identifier, where the synchronization identifier represents whether the cell pointed by the physical cell identifier is synchronized with the serving cell.
Optionally, the reporting information further includes the number of beams of the cell pointed by the physical cell identifier and/or the subcarrier interval of the synchronization signal block.
Optionally, the reporting indication information further includes at least one information identifier, where the information identifier indicates a type of the reporting information.
Optionally, the information identifier includes a unified information identifier and a single information identifier, the unified information identifier indicates multiple types of the reported information, and the single information identifier indicates one type of the reported information.
Optionally, the information identifier sets different values for different neighboring cells of the serving cell, or sets the same value for all neighboring cells of the serving cell.
The embodiment of the invention also discloses another neighbor cell reporting method, which comprises the following steps: sending reporting indication information to user equipment, wherein the reporting indication information comprises a physical cell identifier, a cell pointed by the physical cell identifier is a neighboring cell of a serving cell, and the user equipment measures the cell pointed by the physical cell identifier to obtain reporting information, wherein the reporting information at least comprises a cycle of a synchronization signal burst set of the cell pointed by the physical cell identifier; and receiving the reporting information reported by the user equipment.
Optionally, the reported information includes a cell global identifier of a cell to which the physical cell identifier points and a cycle of a synchronization signal burst set.
Optionally, the reported information includes a synchronization time difference between a cell pointed by the physical cell identifier and a serving cell of the serving base station.
Optionally, the reporting information includes the number of beams of the cell to which the physical cell identifier points and/or the subcarrier spacing of the synchronization signal block.
Optionally, the reporting indication information further includes at least one information identifier, where the information identifier indicates a type of the reporting information.
Optionally, the information identifier includes a unified information identifier and a single information identifier, the unified information identifier indicates multiple types of the reported information, and the single information identifier indicates one type of the reported information.
The embodiment of the invention also discloses a device for reporting the neighboring cell, which comprises: a reporting indication information receiving module, adapted to receive reporting indication information sent by a serving base station, where the reporting indication information includes a physical cell identifier, and a cell to which the physical cell identifier points is a neighboring cell of the serving cell; a measurement module, adapted to measure a cell to which the physical cell identifier points, so as to obtain reporting information, where the reporting information at least includes a cycle of a synchronization signal burst set of the cell to which the physical cell identifier points; and the reporting module is suitable for reporting the reporting information to the service base station.
Optionally, the measurement module includes: and the period measuring unit is suitable for detecting the synchronization signal block, the master information block and the system information block of the cell pointed by the physical cell identifier so as to obtain the cell global identifier and the period of the synchronization signal burst set of the cell pointed by the physical cell identifier, and adding the reported information.
Optionally, the measurement module further includes: and the synchronization time difference calculation unit is suitable for calculating the synchronization time difference between the cell pointed by the physical cell identifier and the service cell of the service base station so as to add the reported information.
Optionally, the synchronization time difference calculating unit includes: and the first time difference calculating subunit is adapted to calculate a first time difference between an initial frame of the cell pointed to by the physical cell identifier and an initial frame of the serving cell, so as to add the reporting information, where the initial frame includes an initial system frame number and an initial subframe number.
Optionally, the synchronization time difference calculating unit includes: a first synchronization signal block determination subunit, adapted to determine a first synchronization signal block with the strongest signal strength among the plurality of synchronization signal blocks of the cell to which the physical cell identifier points; a second time difference calculating subunit, adapted to calculate a second time difference between the first synchronization signal block and the starting frame of the serving cell, where the reporting information includes the second time difference and an identifier of the first synchronization signal block; or, a third time difference calculating subunit, adapted to calculate a third time difference between the first synchronization signal block and the synchronization signal block of the serving cell, where the reporting information includes the third time difference and an identifier of the first synchronization signal block.
Optionally, the synchronization time difference calculating unit includes: a second synchronization signal block determination subunit, adapted to determine a plurality of second synchronization signal blocks with strongest signal strength among the plurality of synchronization signal blocks of the cell to which the physical cell identifier points; and the fourth time difference calculating subunit is adapted to calculate fourth time differences between the plurality of second synchronization signal blocks and the starting frame of the serving cell, and calculate an average value of the fourth time differences corresponding to the plurality of second synchronization signal blocks, so as to add the report information.
Optionally, the synchronization time difference is represented by a synchronization identifier, where the synchronization identifier represents whether the cell pointed by the physical cell identifier is synchronized with the serving cell.
Optionally, the reporting information further includes the number of beams of the cell pointed by the physical cell identifier and/or the subcarrier interval of the synchronization signal block.
Optionally, the reporting indication information further includes at least one information identifier, where the information identifier indicates a type of the reporting information.
Optionally, the information identifier includes a unified information identifier and a single information identifier, the unified information identifier indicates multiple types of the reported information, and the single information identifier indicates one type of the reported information.
The embodiment of the invention also discloses another neighbor cell reporting device, which comprises: a reporting indication information sending module, adapted to send reporting indication information to a user equipment, where the reporting indication information includes a physical cell identifier, a cell to which the physical cell identifier points is a neighboring cell of a serving cell, and the user equipment measures the cell to which the physical cell identifier points to obtain reporting information, where the reporting information at least includes a cycle of a synchronization signal burst set of the cell to which the physical cell identifier points; and the reported information receiving module is suitable for receiving the reported information reported by the user equipment.
Optionally, the reported information includes a cell global identifier of a cell to which the physical cell identifier points and a cycle of a synchronization signal burst set.
Optionally, the reported information includes a synchronization time difference between a cell pointed by the physical cell identifier and a serving cell of the serving base station.
Optionally, the reporting information includes the number of beams of the cell to which the physical cell identifier points and/or the subcarrier spacing of the synchronization signal block.
Optionally, the reporting indication information further includes at least one information identifier, where the information identifier indicates a type of the reporting information.
Optionally, the information identifier includes a unified information identifier and a single information identifier, the unified information identifier indicates multiple types of the reported information, and the single information identifier indicates one type of the reported information.
The embodiment of the invention also discloses a readable storage medium, wherein a computer instruction is stored on the readable storage medium, and the step of the neighbor cell reporting method is executed when the computer instruction runs.
The embodiment of the invention also discloses user equipment which comprises a memory and a processor, wherein the memory is stored with a computer instruction which can be operated on the processor, and the processor executes the step of the neighbor cell reporting method when operating the computer instruction.
The embodiment of the invention also discloses a base station, which comprises a memory and a processor, wherein the memory is stored with a computer instruction capable of running on the processor, and the processor executes the step of the neighbor cell reporting method when running the computer instruction.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:
the technical scheme of the invention includes that reporting indication information sent by a service base station is received, wherein the reporting indication information comprises a physical cell identifier, and a cell pointed by the physical cell identifier is a neighboring cell of a service cell; measuring the cell pointed by the physical cell identifier to obtain reporting information, wherein the reporting information at least comprises the period of a synchronous signal burst set of the cell pointed by the physical cell identifier; and reporting the reporting information to the service base station. After receiving the reporting indication information of the base station, the user equipment measures the adjacent cell of the serving cell, at least obtains the period of the synchronization signal burst set of the cell pointed by the physical cell identifier, and reports the period to the serving base station, so that the serving base station can configure measurement for the subsequently accessed user equipment by using the period of the synchronization signal burst set of the adjacent cell, and the user equipment can better measure the adjacent cell.
Further, the measuring the cell pointed by the physical cell identifier further includes: and calculating the synchronization time difference between the cell pointed by the physical cell identifier and the service cell of the service base station so as to add the reported information. The user equipment of the technical scheme of the invention can also calculate the synchronous time difference between the serving cell and the adjacent cell and report the synchronous time difference to the serving base station; therefore, the service base station can more accurately configure measurement for the subsequent accessed user equipment by combining the cycle and the synchronization time difference of the synchronization signal burst set of the adjacent cell, and further enable the subsequent user equipment to better measure the adjacent cell.
Drawings
Fig. 1 is a flowchart of a method for reporting neighboring cells according to an embodiment of the present invention;
fig. 2 is a flowchart of another neighboring cell reporting method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a neighboring cell reporting apparatus according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another neighboring cell reporting apparatus according to an embodiment of the present invention.
Detailed Description
As described in the background art, in the prior art, it is expected that a base station acquires neighbor cell information to configure measurement for a UE that is accessed later on for the cell, however, the base station can only acquire information such as a cell global identity, TAC, and PLMN by using an existing ANR mechanism in LTE, and for a 5G system, the information still cannot be used to correctly configure measurement for the UE, so that the UE that is accessed later cannot measure the cell in time, which may cause a handover to be not in time, and a radio link to fail in a severe case.
The inventors of the present application found that in NR, time division multiplexing of Primary Synchronization Signal (PSS), Secondary Synchronization Signal (PSS), and Physical Broadcast Channel (PBCH) is supported. A cell contains one or more Synchronization Signal blocks (SS blocks), i.e. one or more beams (Beam), each SS block containing NR-PSS, NR-SSs and NR-PBCH. When a cell contains multiple SS blocks (also called synchronization signal burst sets), each SS block needs to be transmitted within 5ms, the transmission of the cell synchronization signal block set is periodic, and the period can be 5ms, 10ms, 20ms, 40ms, 80ms or 160ms, for example, when the period is 160ms, each SS burst set needs to be transmitted within 5 ms; after 160ms, all synchronization signal blocks of the cell are transmitted again and within 5 ms. The UE may obtain synchronization information of the cell and information such as cell bandwidth by receiving the SS block of the cell.
If the UE can report information such as the period of the synchronization signal burst set of the NR neighboring cell in the ANR mechanism, the base station can accurately configure measurement for other UEs, so that other UEs can accurately perform measurement on the synchronization signal block of the obtained neighboring cell, and improve mobility performance.
After receiving the reporting indication information of the serving base station, the user equipment measures the neighboring cell of the serving cell, at least obtains the period of the synchronization signal burst set of the cell pointed by the physical cell identifier, and reports the period to the serving base station, so that the serving base station can configure measurement for the subsequently accessed user equipment by using the period of the synchronization signal burst set of the neighboring cell, and further the subsequent user equipment can better measure the neighboring cell and improve the mobility performance.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Fig. 1 is a flowchart of a neighboring cell reporting method according to an embodiment of the present invention.
The neighbor cell reporting method shown in fig. 1 may be used on a user equipment side, and the neighbor cell reporting method may include the following steps:
step S101: receiving reporting indication information sent by a service base station, wherein the reporting indication information comprises a physical cell identifier, and a cell pointed by the physical cell identifier is a neighboring cell of the service cell;
step S102: measuring the cell pointed by the physical cell identifier to obtain reporting information, wherein the reporting information at least comprises the period of a synchronous signal burst set of the cell pointed by the physical cell identifier;
step S103: and reporting the reporting information to the service base station.
In this embodiment, the serving base station may be a base station in an LTE system or a base station in an NR system. The neighbor cell of the serving cell may be a cell in the NR system. Further, the serving cell may be a primary serving cell or other serving cells.
In a specific implementation, the ue is in an RRC connected state when accessing the serving base station, the serving base station learns that there is an unknown neighboring Cell through a measurement report of the ue or other ues, and the measurement report may indicate a physical Cell identifier (for example, Cell1) of the neighboring Cell. Since the serving base station does not know other information of the neighboring Cell, in order to comprehensively know the Cell and configure measurement for other user equipments, the serving base station may indicate, in the reported indication information, a Physical Cell Identifier (PCI) of a Cell that the user equipment needs to measure, and send the PCI to the user equipment. Specifically, the serving base station may send the reporting indication information to the ue through Radio Resource Control (RRC) signaling.
In step S101, the ue receives reporting indication information sent by the serving base station. The cell to be measured by the user equipment is a neighboring cell of the serving cell, that is, the cell pointed to by the physical cell identifier is the neighboring cell of the serving cell. Specifically, the ue may obtain the reporting indication information by receiving RRC signaling.
Further, in step S102, the ue measures the cell pointed to by the physical cell identifier, and at least obtains the period of the synchronization signal burst set of the cell pointed to by the physical cell identifier.
It should be understood by those skilled in the art that the procedure of measuring the cell by the ue may use any practicable measurement manner in the prior art, and the embodiment of the present invention is not limited thereto.
In step S103, the ue reports the report information to the serving base station. The serving base station may obtain, from the reported information, a period (SS burst set periodicity) of a synchronization signal burst set of a cell to which the physical cell identifier points, which may also be referred to as a synchronization signal block set period, so that when configuring measurement for the cell for subsequent user equipment, the period of the synchronization signal burst set of the cell may be configured in measurement configuration. Specifically, the ue may report the reporting information through uplink RRC signaling.
After receiving the reporting indication information of the base station, the user equipment of the embodiment of the invention measures the adjacent cell of the service cell, at least obtains the period of the synchronous signal burst set of the cell pointed by the physical cell identifier, and reports the period to the service base station, so that the service base station can configure measurement for the user equipment which is subsequently accessed by utilizing the period of the synchronous signal burst set of the adjacent cell, and the subsequent user equipment can better measure the adjacent cell.
Preferably, step S102 may include the steps of: and detecting the synchronization signal block, the master information block and the system information block of the cell pointed by the physical cell identifier to obtain the cell global identifier and the cycle of the synchronization signal burst set of the cell pointed by the physical cell identifier, and adding the reported information.
In a specific implementation, after receiving the reporting indication Information, the ue starts to attempt to read a synchronization signal Block and a Master Information Block (MIB) of a cell to which the physical cell identifier points. The Information of the cell that the UE needs to acquire may be located in other System messages, such as System Information Block1 (SIB 1), and the UE needs to read the System messages in other System Information blocks of the cell at this time. Specifically, after receiving the RRC signaling carrying the reporting indication information, the ue starts to attempt to read the primary synchronization signal, the secondary synchronization signal, the MIB of the Cell1 pointed by the physical Cell identifier, and the system message in the SIB 1. Then, the user equipment obtains a Cell Global Identifier (CGI) of the Cell, and an SS burst set period of the Cell; and reporting the CGI and SS burst set period of the cell to a serving base station through an uplink RRC signaling.
It should be noted that the System Information Block measured by the ue may also be any other implementable System Information Block, such as System Information Block 2(System Information Block2, SIB2), System Information Block 3(System Information Block3, SIB3), and the like, which is not limited in this embodiment of the present invention.
Optionally, if the frequency of the cell to which the physical cell identifier points is different from that of the serving cell, the ue needs to use the measurement gap or the inactivity time of discontinuous reception to read the synchronization signal block and the master information block of the cell to which the physical cell identifier points.
Further, step S102 may further include the steps of: and calculating the synchronization time difference between the cell pointed by the physical cell identifier and the service cell of the service base station so as to add the reported information.
In this embodiment, the synchronization time difference may be expressed by absolute time; orthogonal Frequency Division Multiplexing (OFDM) notation may also be employed; it is also possible to use the minimum time unit defined by the communication protocol, for example, the minimum time unit Ts is 1/(15000 × 2048) s.
The user equipment of the embodiment of the invention can also calculate the synchronous time difference between the serving cell and the adjacent cell and report the synchronous time difference to the serving base station; therefore, the service base station can more accurately configure measurement for the subsequent accessed user equipment by combining the cycle and the synchronization time difference of the synchronization signal burst set of the adjacent cell, and further enable the subsequent user equipment to better measure the adjacent cell.
In an embodiment of the present invention, a first time difference between an initial frame of a cell pointed by the physical cell identifier and an initial frame of the serving cell may be calculated to add the report information, where the initial frame includes an initial system frame number and an initial subframe number.
In this embodiment, the Cell to which the physical Cell identifier points is Cell1, the time corresponding to the System Frame Number (SFN) of Cell1 being 0 and the subframe Number being 0 is time 1, and the time corresponding to the SFN ═ 0 and the subframe Number being 0 of the serving Cell is time 2, then the difference between time 1 and time 2 can be calculated.
In a variation of the present invention, the following steps may be performed to calculate the synchronization time difference: determining a first synchronization signal block with the strongest signal strength in a plurality of synchronization signal blocks of a cell pointed by the physical cell identifier; and calculating a second time difference between the first synchronization signal block and the starting frame of the serving cell, wherein the reporting information comprises the second time difference and the identifier of the first synchronization signal block.
In this embodiment, the Cell to which the physical Cell identifier points is Cell1, and Cell1 may include multiple synchronization signal blocks. The user equipment may measure Signal strengths of the plurality of synchronization Signal blocks, which may be Reference Signal Receiving Power (RSRP), for example. And the user equipment calculates a second time difference between the first synchronous signal block with the strongest signal strength and the initial frame of the serving cell, and reports the second time difference and the second time difference to the serving base station.
For example, Cell1 has 16 synchronization signal blocks: SS block0, SS block1, SS block2, …, SS block15, of which 3 are identified by UE measurements: SS block4, SS block5 and SS block6, the signal strength measured by the UE is RSRP1, RSRP2 and RSRP3 in sequence, and the RSRP2 is greater than the RSRP1 is greater than the RSRP 3. The UE reports a second time difference of SS block5 from the starting frame of the serving cell and an identification of SS block5 to the serving base station. That is, the time difference between the time corresponding to SS block5 of Cell1 and the time corresponding to serving Cell SFN and subframe number 0 is reported to the serving base station, and the UE needs to indicate the measured SS block5 information when reporting the time difference.
In another variation of the present invention, the following steps may be performed to calculate the synchronization time difference: and calculating a third time difference between the first synchronization signal block and the synchronization signal block of the serving cell, wherein the report information includes the third time difference and the identifier of the first synchronization signal block.
In this embodiment, after determining that the first synchronization signal block with the strongest signal strength is SS block5, a time difference between SS block5 and a service SS block of a serving cell may be calculated, and the time difference and an identifier of SS block5 may be reported to the serving base station.
In another variation of the present invention, the following steps may be performed to calculate the synchronization time difference: determining a plurality of second synchronization signal blocks with strongest signal intensity in a plurality of synchronization signal blocks of a cell pointed by the physical cell identifier; and respectively calculating fourth time differences between the second synchronization signal blocks and the initial frame of the serving cell, and calculating a mean value of the fourth time differences corresponding to the second synchronization signal blocks to add the reporting information.
In this embodiment, the plurality of second synchronization signal blocks with the strongest signal strength in the plurality of synchronization signal blocks of the Cell1 pointed to by the physical Cell identifier are determined: and SS block4, SS block5 and SS block6, calculating the average value of the time corresponding to SS block4, SS block5, SS block6 and service cell SFN 0 and the time corresponding to the sub-frame number 0, and reporting the average value to the service base station.
It is understood that the number of the second synchronization signal blocks may be adaptively configured according to an actual application environment, and the embodiment of the present invention is not limited thereto.
In a further variation of the present invention, the synchronization time difference is represented by a synchronization identifier, where the synchronization identifier indicates whether a cell to which the physical cell identifier points is synchronized with the serving cell.
In this embodiment, the synchronization time difference may be represented by a synchronization identifier, in addition to the absolute time, the OFDM, and the minimum time unit defined by the communication protocol. For example, the synchronization identifier occupies 1 bit, 0 indicates that the cell to which the physical cell identifier points is synchronized with the serving cell, and 1 indicates that the cell to which the physical cell identifier points is not synchronized with the serving cell; or, 1 indicates that the cell to which the physical cell identifier points is synchronized with the serving cell, and 0 indicates that the cell to which the physical cell identifier points is not synchronized with the serving cell.
Preferably, the reporting information further includes the number of beams of the cell to which the physical cell identifier points and/or the subcarrier interval of the synchronization signal block.
In this embodiment, the ue may also report the number of beams of the cell pointed by the physical cell identifier to the serving base station. The number of beams may be the total number of beams of the cell to which the physical cell identity points, e.g. 16; the number of beams may also be the number of beams of the cell to which the physical cell identity detected by the user equipment is directed, e.g. 3.
It will be appreciated that the number of beams may also be the number of synchronization signal blocks.
In addition, since the beam of the cell to which the physical cell identifier points may adopt different subcarrier intervals (numerology), and the different subcarrier intervals correspond to different Transmission Time Intervals (TTI), the ue may also measure the subcarrier Interval of the synchronization signal block of the cell and report the measured subcarrier Interval to the serving base station.
Preferably, the reporting indication information further includes at least one information identifier, where the information identifier indicates a type of the reporting information.
In this embodiment, when the reporting information includes one or more types of content, the serving base station may indicate, in the reporting indication information, the type of content that the user equipment needs to report through the information identifier.
Further, the information identifier includes a unified information identifier and a single information identifier, the unified information identifier indicates multiple types of the reported information, and the single information identifier indicates one type of the reported information.
In specific implementation, for specific information in an unknown NR neighboring cell reported by the UE, a serving base station (e.g., an LTE or NR base station) may instruct the UE to report a specific type of information through one unified information identifier or multiple single information identifiers in RRC signaling. The unified information identifier may be used for all neighboring cells to be measured, and indicates various types of the reported information, for example, indicate a period, a number of beams, a time difference between the cell and a serving cell, and a subcarrier interval corresponding to an SS block of the cell, where the UE needs to report a synchronization signal burst set.
The single information mark indicates a type of the reported information, and different values can be set for different neighboring cells. For example, the multiple single information identifiers respectively indicate the period, the number of beams, the time difference between the cell and the serving cell, and the subcarrier interval corresponding to the SS block of the cell that the UE needs to report the synchronization signal burst set.
More specifically, for different neighboring cells of the serving cell, the values of the information identifier may be the same or different, which is not limited in this embodiment of the present invention.
Fig. 2 is a flowchart of another neighboring cell reporting method according to an embodiment of the present invention.
The neighbor cell reporting method shown in fig. 2 may be used at the base station side, and the neighbor cell reporting method may include the following steps:
step S201: sending reporting indication information to user equipment, wherein the reporting indication information comprises a physical cell identifier, a cell pointed by the physical cell identifier is a neighboring cell of a serving cell, and the user equipment measures the cell pointed by the physical cell identifier to obtain reporting information, wherein the reporting information at least comprises a cycle of a synchronization signal burst set of the cell pointed by the physical cell identifier;
step S202: and receiving the reporting information reported by the user equipment.
In this embodiment, the ue may be in a connected state.
In a specific implementation, in step S201, the serving base station may indicate, in the reporting indication information, a physical cell identifier of a cell that the user equipment needs to measure, and send the physical cell identifier to the user equipment. And the user equipment measures the cell pointed by the physical cell identifier, at least obtains the period of the synchronous signal burst set of the cell pointed by the physical cell identifier, and reports the period to the serving base station.
Further, in step S202, the serving base station receives the report information reported by the ue, so that when configuring measurement for the cell for a subsequent ue, the period of the synchronization signal burst set of the cell may be configured in the measurement configuration.
Preferably, the reporting information includes a cell global identifier of a cell to which the physical cell identifier points and a cycle of a synchronization signal burst set.
Preferably, the reported information may include a synchronization time difference between a cell pointed by the physical cell identifier and a serving cell of the serving base station.
Preferably, the reported information may include the number of beams of the cell to which the physical cell identifier points and/or the subcarrier spacing of the synchronization signal block.
Preferably, the reporting indication information may further include at least one information identifier, where the information identifier indicates a type of the reporting information.
Further, the information identifier may include a unified information identifier and a single information identifier, where the unified information identifier indicates multiple types of the reported information, and the single information identifier indicates one type of the reported information.
More specific implementation manners of the embodiments of the present invention may refer to the description related to the embodiment shown in fig. 1, and are not described herein again.
Fig. 3 is a schematic structural diagram of a neighboring cell reporting apparatus according to an embodiment of the present invention.
The neighboring cell reporting apparatus 30 shown in fig. 3 may be used on a user equipment side, and the neighboring cell reporting apparatus 30 may include a reporting indication information receiving module 301, a measuring module 302, and a reporting module 303.
The reporting indication information receiving module 301 is adapted to receive reporting indication information sent by a serving base station, where the reporting indication information includes a physical cell identifier, and a cell to which the physical cell identifier points is a neighboring cell of the serving cell; the measurement module 302 is adapted to measure the cell pointed to by the physical cell identifier to obtain reporting information, where the reporting information at least includes a cycle of a synchronization signal burst set of the cell pointed to by the physical cell identifier; the reporting module 303 is adapted to report the reporting information to the serving base station.
After receiving the reporting indication information of the base station, the user equipment of the embodiment of the invention measures the adjacent cell of the serving cell, at least obtains the period of the synchronous signal burst set of the cell pointed by the physical cell identifier, and reports the period to the serving base station, so that the serving base station can configure measurement for the user equipment which is subsequently accessed by utilizing the period of the synchronous signal burst set of the adjacent cell, and the subsequent user equipment can better measure the adjacent cell.
Preferably, the measurement module 302 may include a period measurement unit 3021, where the period measurement unit 3021 is adapted to detect a synchronization signal block, a master information block, and a system information block of a cell to which the physical cell identifier points, to obtain a cell global identifier and a period of a synchronization signal burst set of the cell to which the physical cell identifier points, and to add the reporting information.
Further, the measurement module 302 may further include a synchronization time difference calculating unit 3022, where the synchronization time difference calculating unit 3022 is adapted to calculate a synchronization time difference between the cell pointed by the physical cell identifier and the serving cell of the serving base station, so as to join the reported information.
In an embodiment of the present invention, the synchronization time difference calculating unit 3022 may include a first time difference calculating subunit 30221, where the first time difference calculating subunit 30221 is adapted to calculate a first time difference between a starting frame of a cell pointed by the physical cell identifier and a starting frame of the serving cell, so as to add the reporting information, where the starting frame includes a starting system frame number and a starting subframe number.
In a variation of the present invention, the synchronization time difference calculating unit 3022 may include a first synchronization signal block determining subunit 30222 and a second time difference calculating subunit 30223, where the first synchronization signal block determining subunit 30222 is adapted to determine a first synchronization signal block with the strongest signal strength from among a plurality of synchronization signal blocks of the cell to which the physical cell identifier points; the second time difference calculating subunit 30223 is adapted to calculate a second time difference between the first synchronization signal block and the starting frame of the serving cell, and the reporting information includes the second time difference and the identifier of the first synchronization signal block.
In another variation of the present invention, the synchronization time difference calculating unit 3022 may include a first synchronization signal block determining subunit 30222 and a third time difference calculating subunit 30224, and the third time difference calculating subunit 30224 is adapted to calculate a third time difference between the first synchronization signal block and the synchronization signal block of the serving cell, and the report information includes the third time difference and an identifier of the first synchronization signal block.
In another variation of the present invention, the synchronization time difference calculating unit 3022 may include a second synchronization signal block determining subunit 30225 and a fourth time difference calculating subunit 30226, where the second synchronization signal block determining subunit 30225 is adapted to determine a plurality of second synchronization signal blocks with strongest signal strength from among a plurality of synchronization signal blocks of the cell to which the physical cell identifier points; a fourth time difference calculating subunit 30226, adapted to calculate fourth time differences between the multiple second synchronization signal blocks and the starting frame of the serving cell, and calculate a mean value of the fourth time differences corresponding to the multiple second synchronization signal blocks, so as to add the reporting information.
In a further variation of the present invention, the synchronization time difference is represented by a synchronization identifier, where the synchronization identifier indicates whether a cell to which the physical cell identifier points is synchronized with the serving cell.
For more details on the working principle and the working mode of the neighboring cell reporting apparatus 30, reference may be made to the relevant description of the embodiment shown in fig. 1, which is not described herein again.
FIG. 4 is a schematic structural diagram of another neighboring cell reporting apparatus according to an embodiment of the present invention
The neighboring cell reporting apparatus 40 shown in fig. 4 may be used on the base station side, and the neighboring cell reporting apparatus 40 may include a reporting indication information sending module 401 and a reporting information receiving module 402.
The reporting indication information sending module 401 is adapted to send reporting indication information to a user equipment, where the reporting indication information includes a physical cell identifier, a cell to which the physical cell identifier points is a neighboring cell of a serving cell, and the user equipment measures the cell to which the physical cell identifier points to obtain reporting information, where the reporting information at least includes a cycle of a synchronization signal burst set of the cell to which the physical cell identifier points; the reported information receiving module 402 is adapted to receive the reported information reported by the ue.
Preferably, the reported information may include a cell global identity of a cell to which the physical cell identity points and a cycle of a synchronization signal burst set.
Preferably, the reported information may include a synchronization time difference between a cell pointed by the physical cell identifier and a serving cell of the serving base station.
Preferably, the reported information may include the number of beams of the cell to which the physical cell identifier points and/or the subcarrier spacing of the synchronization signal block.
For more contents of the working principle and the working mode of the neighboring cell reporting apparatus 40, reference may be made to the related descriptions of the embodiments shown in fig. 1 to fig. 2, which are not described herein again.
The embodiment of the invention also discloses a readable storage medium, wherein a computer instruction is stored on the readable storage medium, and the computer instruction can execute the steps of the neighbor cell reporting method shown in fig. 1 or fig. 2 when running. The storage medium may include ROM, RAM, magnetic or optical disks, etc.
The embodiment of the invention also discloses user equipment which can comprise a memory and a processor, wherein the memory is stored with computer instructions capable of running on the processor. The processor may execute the steps of the neighbor cell reporting method shown in fig. 1 when running the computer instructions. The user equipment includes but is not limited to a mobile phone, a computer, a tablet computer and other terminal equipment.
The embodiment of the invention also discloses a base station which can comprise a memory and a processor, wherein the memory is stored with computer instructions capable of running on the processor. The processor, when executing the computer instructions, may perform the steps of the neighboring cell reporting method shown in fig. 2.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (37)
1. A method for reporting neighboring cells is characterized by comprising the following steps:
receiving reporting indication information sent by a service base station, wherein the reporting indication information comprises a physical cell identifier, and a cell pointed by the physical cell identifier is a neighboring cell of the service cell;
measuring the cell pointed by the physical cell identifier to obtain reporting information, wherein the reporting information at least comprises the period of a synchronous signal burst set of the cell pointed by the physical cell identifier;
and reporting the report information to the service base station so that the service base station configures measurement for the subsequently accessed user equipment by using the period of the synchronous signal burst set.
2. The method of claim 1, wherein the measuring the cell pointed to by the physical cell identifier comprises:
and detecting the synchronization signal block, the master information block and the system information block of the cell pointed by the physical cell identifier to obtain the cell global identifier and the cycle of the synchronization signal burst set of the cell pointed by the physical cell identifier, and adding the reported information.
3. The method of claim 2, wherein the measuring the cell pointed to by the physical cell identifier further comprises:
and calculating the synchronization time difference between the cell pointed by the physical cell identifier and the service cell of the service base station so as to add the reported information.
4. The method of claim 3, wherein the calculating the synchronization time difference between the cell pointed to by the physical cell identifier and the serving cell of the serving base station comprises:
and calculating a first time difference between an initial frame of the cell pointed by the physical cell identifier and an initial frame of the serving cell to add the reporting information, wherein the initial frame comprises an initial system frame number and an initial subframe number.
5. The method of claim 3, wherein the calculating the synchronization time difference between the cell pointed to by the physical cell identifier and the serving cell of the serving base station comprises:
determining a first synchronization signal block with the strongest signal strength in a plurality of synchronization signal blocks of a cell pointed by the physical cell identifier;
calculating a second time difference between the first synchronization signal block and the starting frame of the serving cell, wherein the reporting information includes the second time difference and the identifier of the first synchronization signal block,
or, calculating a third time difference between the first synchronization signal block and the synchronization signal block of the serving cell, where the reporting information includes the third time difference and an identifier of the first synchronization signal block.
6. The method of claim 3, wherein the calculating the synchronization time difference between the cell pointed to by the physical cell identifier and the serving cell of the serving base station comprises:
determining a plurality of second synchronization signal blocks with strongest signal intensity in a plurality of synchronization signal blocks of a cell pointed by the physical cell identifier;
and respectively calculating fourth time differences between the second synchronization signal blocks and the initial frame of the serving cell, and calculating a mean value of the fourth time differences corresponding to the second synchronization signal blocks to add the reporting information.
7. The neighbor cell reporting method of claim 3, wherein the synchronization time difference is represented by a synchronization identifier, and the synchronization identifier represents whether the cell pointed by the physical cell identifier is synchronized with the serving cell.
8. The method of claim 2, wherein the reporting information further includes a number of beams of a cell to which the physical cell identifier points and/or a subcarrier spacing of a synchronization signal block.
9. The neighboring cell reporting method of claim 2, wherein the reporting indication information further comprises at least one information identifier, and the information identifier indicates a type of the reporting information.
10. The neighbor reporting method according to claim 9, wherein the information identifier includes a unified information identifier and a single information identifier, the unified information identifier indicates multiple types of the reported information, and the single information identifier indicates one type of the reported information.
11. The method of claim 9, wherein the information identifier sets different values for different neighboring cells of the serving cell, or sets the same value for all neighboring cells of the serving cell.
12. A method for reporting neighboring cells is characterized by comprising the following steps:
sending reporting indication information to user equipment, wherein the reporting indication information comprises a physical cell identifier, a cell pointed by the physical cell identifier is a neighboring cell of a serving cell, and the user equipment measures the cell pointed by the physical cell identifier to obtain reporting information, wherein the reporting information at least comprises a cycle of a synchronization signal burst set of the cell pointed by the physical cell identifier;
receiving the reporting information reported by the user equipment;
and configuring measurement for the user equipment accessed subsequently by utilizing the period of the synchronous signal burst set in the reported information.
13. The method of claim 12, wherein the reporting information includes a cell global identity of a cell pointed to by the physical cell identity and a cycle of a synchronization signal burst set.
14. The method of claim 12, wherein the reporting information includes a synchronization time difference between a cell pointed to by the physical cell identifier and a serving cell of a serving base station.
15. The method of claim 12, wherein the reporting information includes a number of beams of a cell pointed to by the physical cell identifier and/or a subcarrier spacing of a synchronization signal block.
16. The neighboring cell reporting method of claim 12, wherein the reporting indication information further includes at least one information identifier, and the information identifier indicates a type of the reporting information.
17. The neighbor reporting method according to claim 16, wherein the information identifier includes a unified information identifier and a single information identifier, the unified information identifier indicates a plurality of types of the reported information, and the single information identifier indicates one type of the reported information.
18. The method of claim 16, wherein the information flag sets different values for different neighboring cells of the serving cell, or sets the same value for all neighboring cells of the serving cell.
19. A neighboring cell reporting device is characterized by comprising:
a reporting indication information receiving module, adapted to receive reporting indication information sent by a serving base station, where the reporting indication information includes a physical cell identifier, and a cell to which the physical cell identifier points is a neighboring cell of the serving cell;
a measurement module, adapted to measure a cell to which the physical cell identifier points, so as to obtain reporting information, where the reporting information at least includes a cycle of a synchronization signal burst set of the cell to which the physical cell identifier points;
and the reporting module is suitable for reporting the reporting information to the service base station so that the service base station configures measurement for the subsequently accessed user equipment by using the period of the synchronous signal burst set.
20. The apparatus of claim 19, wherein the measurement module comprises: and the period measuring unit is suitable for detecting the synchronization signal block, the master information block and the system information block of the cell pointed by the physical cell identifier so as to obtain the cell global identifier and the period of the synchronization signal burst set of the cell pointed by the physical cell identifier, and adding the reported information.
21. The apparatus for reporting neighboring cells of claim 20, wherein the measuring module further comprises: and the synchronization time difference calculation unit is suitable for calculating the synchronization time difference between the cell pointed by the physical cell identifier and the service cell of the service base station so as to add the reported information.
22. The apparatus of claim 21, wherein the synchronization time difference calculating unit comprises:
and the first time difference calculating subunit is adapted to calculate a first time difference between an initial frame of the cell pointed to by the physical cell identifier and an initial frame of the serving cell, so as to add the reporting information, where the initial frame includes an initial system frame number and an initial subframe number.
23. The apparatus of claim 21, wherein the synchronization time difference calculating unit comprises:
a first synchronization signal block determination subunit, adapted to determine a first synchronization signal block with the strongest signal strength among the plurality of synchronization signal blocks of the cell to which the physical cell identifier points;
a second time difference calculating subunit, adapted to calculate a second time difference between the first synchronization signal block and the starting frame of the serving cell, where the reporting information includes the second time difference and an identifier of the first synchronization signal block;
or, a third time difference calculating subunit, adapted to calculate a third time difference between the first synchronization signal block and the synchronization signal block of the serving cell, where the reporting information includes the third time difference and an identifier of the first synchronization signal block.
24. The apparatus of claim 21, wherein the synchronization time difference calculating unit comprises:
a second synchronization signal block determination subunit, adapted to determine a plurality of second synchronization signal blocks with strongest signal strength among the plurality of synchronization signal blocks of the cell to which the physical cell identifier points;
and the fourth time difference calculating subunit is adapted to calculate fourth time differences between the plurality of second synchronization signal blocks and the starting frame of the serving cell, and calculate an average value of the fourth time differences corresponding to the plurality of second synchronization signal blocks, so as to add the report information.
25. The apparatus of claim 21, wherein the synchronization time difference is represented by a synchronization identifier, and the synchronization identifier indicates whether the cell pointed by the physical cell id is synchronized with the serving cell.
26. The apparatus of claim 20, wherein the reporting information further includes a number of beams of a cell pointed to by the physical cell identifier and/or a subcarrier spacing of a synchronization signal block.
27. The apparatus of claim 20, wherein the reporting indication information further includes at least one information identifier, and the information identifier indicates a type of the reporting information.
28. The apparatus of claim 27, wherein the information id comprises a unified information id and a single information id, the unified information id indicates multiple types of the reported information, and the single information id indicates one type of the reported information.
29. A neighboring cell reporting device is characterized by comprising:
a reporting indication information sending module, adapted to send reporting indication information to a user equipment, where the reporting indication information includes a physical cell identifier, a cell to which the physical cell identifier points is a neighboring cell of a serving cell, and the user equipment measures the cell to which the physical cell identifier points to obtain reporting information, where the reporting information at least includes a cycle of a synchronization signal burst set of the cell to which the physical cell identifier points;
and the reported information receiving module is suitable for receiving the reported information reported by the user equipment, so as to configure measurement for the user equipment accessed subsequently by utilizing the period of the synchronous signal burst set in the reported information.
30. The apparatus of claim 29, wherein the reporting information includes a cell global identity of a cell pointed to by the physical cell identity and a cycle of a synchronization signal burst set.
31. The apparatus of claim 29, wherein the reporting information includes a synchronization time difference between a cell pointed to by the physical cell identifier and a serving cell of a serving base station.
32. The apparatus of claim 29, wherein the reporting information includes a number of beams of a cell pointed to by the physical cell identifier and/or a subcarrier spacing of a synchronization signal block.
33. The apparatus of claim 29, wherein the reporting indication information further includes at least one information identifier, and the information identifier indicates a type of the reporting information.
34. The apparatus of claim 33, wherein the information id comprises a unified information id and a single information id, the unified information id indicates multiple types of the reported information, and the single information id indicates one type of the reported information.
35. A readable storage medium, on which a computer program is stored, wherein the computer program is configured to execute the steps of the neighbor cell reporting method according to any one of claims 1 to 11 or the neighbor cell reporting method according to any one of claims 12 to 18 when running.
36. A user equipment comprising a memory and a processor, wherein the memory stores a computer program operable on the processor, and the processor executes the computer program to perform the steps of the neighbor cell reporting method according to any one of claims 1 to 11.
37. A base station comprising a memory and a processor, wherein the memory stores a computer program operable on the processor, and wherein the processor executes the computer program to perform the steps of the neighbor cell reporting method according to any one of claims 12 to 18.
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| CN109474963B (en) * | 2017-09-08 | 2021-06-25 | 展讯通信（上海）有限公司 | Method, base station, user equipment and medium for acquiring and reporting neighbor synchronization information |
| CN111800818B (en) * | 2019-04-08 | 2022-05-13 | 华为技术有限公司 | Communication method and device |
| CN113141647B (en) * | 2020-01-17 | 2023-01-10 | 大唐移动通信设备有限公司 | Synchronous time information transmission method, terminal and network side equipment |
| CN113543237B (en) * | 2020-04-13 | 2022-06-24 | 荣耀终端有限公司 | Cell selection method and device |
| CN117917117A (en) * | 2021-09-24 | 2024-04-19 | 苹果公司 | Measurement Gap (MG) and interrupt design for System Information (SI) reading in a Multiple Universal Subscriber Identity Module (MUSIM) |
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