CN112351455B

CN112351455B - Multi-cell measuring method and device

Info

Publication number: CN112351455B
Application number: CN202011236625.XA
Authority: CN
Inventors: 陈美燕; 杨恩浩; 朱志辉; 谭舒
Original assignee: Unisoc Chongqing Technology Co Ltd
Current assignee: Unisoc Chongqing Technology Co Ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2022-10-21
Anticipated expiration: 2040-11-06
Also published as: CN112351455A

Abstract

The application discloses a multi-cell measuring method and a device, which are applied to terminal equipment, wherein the method comprises the following steps: determining a cell to be measured according to a data signal received from access network equipment through a first sub-function module, wherein the data signal carries associated data of a plurality of different cells, the cell to be measured is any one cell to be measured in a cell set to be measured, and the cell to be measured corresponds to target associated data in the data signal; converting the target associated data from a time domain to a frequency domain through a second sub-function module to obtain target frequency domain associated data and an intensity indication RSSI of a received signal of a cell to be measured; and converting the target frequency domain associated data from a frequency domain to a time domain through a third sub-functional module to obtain the power RSRP of the reference signal of the cell to be measured and the quality RSRQ of the reference signal. By the method, the speed of multi-cell measurement can be improved.

Description

Multi-cell measuring method and device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a multi-cell measurement method and apparatus.

Background

In a wireless mobile communication system, a terminal device measures a current serving cell and a possible neighboring cell based on measurement configuration information sent by a currently connected access network device, so as to perform cell handover and other procedures when appropriate. The terminal device may report the measurement results of the current serving cell and the neighboring cells to the access network device in the form of a measurement report according to the reporting condition issued by the measurement configuration. The cell measurement can obtain the Reference Signal Received Power (RSRP), the Reference Signal Quality (RSRQ) and the Received Signal Strength Indicator (RSSI) of the measured cell, and the terminal device can select a suitable cell to switch according to the 3 parameters, thereby satisfying the mobility requirement.

In the prior art, a terminal device may obtain a cell list by obtaining information of neighboring cells issued by a currently connected access network device, and perform one-by-one measurement on each cell in the cell list, as shown in fig. 1. When the terminal equipment needs to perform cell switching and there are many cells in the cell list, the method of measuring one by one will make the cell measurement duration longer, resulting in that the terminal equipment cannot select and switch to other suitable cells in time.

Disclosure of Invention

The application discloses a multi-cell measuring method and device, which can measure speed through multiple cells.

In a first aspect, an embodiment of the present application provides a method and an apparatus for multi-cell measurement, which are applied to a terminal device, where the terminal device is connected to an access network device, and the method includes:

determining a cell to be measured according to a data signal received from access network equipment by a first sub-function module, wherein the data signal carries associated data of a plurality of different cells, the cell to be measured is any one cell to be measured in a cell set to be measured, and the cell to be measured corresponds to target associated data in the data signal;

converting the target associated data from a time domain to a frequency domain through a second sub-function module to obtain target frequency domain associated data and an intensity indication RSSI of a received signal of a cell to be measured;

and converting the target frequency domain associated data from a frequency domain to a time domain through a third sub-functional module to obtain the power RSRP of the reference signal of the cell to be measured and the quality RSRQ of the reference signal.

In one embodiment, before determining a set of cells to be measured according to a data signal received from an access network device, a first sub-function module obtains the data signal sent by the access network device through a serving cell, where the serving cell is a cell where a terminal device currently resides; and storing the target associated data into the circulating memory through the first sub-function module.

In one embodiment, a data signal is sampled by a first sub-function module to obtain a sampled data signal for cell validity determination, where the sampled data signal is a subset of the data signal and carries sampling associated data of a plurality of different cells; if the number of cell specific reference signal CRS OFDM symbols included in target sampling associated data corresponding to the target associated data meets a preset number condition, determining the cell corresponding to the target sampling associated data as a cell to be measured through a first sub-function module; and generating auxiliary information of the cell to be measured through the first sub-function module, wherein the auxiliary information is used for indicating a cell specific reference signal (CRS) OFDM symbol in target sampling associated data of the cell to be measured.

In an embodiment, before the target frequency domain related data and the received signal strength indication RSSI of the cell to be measured are obtained by converting the target related data from the time domain to the frequency domain through the second sub-function module, the auxiliary information of the cell to be measured is stored through a first-in first-out FIFO memory in the first sub-function module.

In an embodiment, the second sub-function module includes a channel frequency domain estimation result HLS ping memory and a HLS pong memory, and the HLS ping memory and the HLS pong memory are used for storing HLS result information output by the second sub-function module;

in one embodiment, if the terminal device is in an IDLE state, the first-in first-out FIFO memory is in a non-empty state, and the HLS ping memory and/or the HLS pong memory are/is in an empty state, the second sub-function module enters a read first-in first-out FIFO memory RD _ FIFO state; acquiring auxiliary information from a first-in first-out (FIFO) memory through a second sub-functional module; acquiring target associated data from the circulating memory through the second sub-functional module according to the auxiliary information; and converting the target associated data from a time domain to a frequency domain through a second sub-function module to obtain target frequency domain associated data and the strength indication RSSI of the received signal of the cell to be measured.

In one embodiment, after the target frequency domain associated data and the strength indication RSSI of the received signal of the cell to be measured are obtained by converting the target associated data from the time domain to the frequency domain through the second sub-function module, the second sub-function module enters an HLS state, and HLS operation is performed according to the target frequency domain associated data to obtain target HLS result information; storing the target HLS result information into an HLS ping memory or an HLS pong memory through a second sub-functional module; sending an HLS ping memory full flag or an HLS pong memory full flag to a third sub-functional module through a second sub-functional module; and entering an END END state through the second sub-function module, and switching to an IDLE IDLE state.

In an embodiment, after the second sub-function module sends the HLS ping memory full flag or the HLS pong memory full flag to the third sub-function module, if the third sub-function module receives the HLS ping memory full flag or the HLS pong memory full flag, it is determined that the HLS ping memory or the HLS pong memory includes the target HLS result information.

In one embodiment, if the terminal device is in an IDLE state and the HLS ping memory or the HLS pong memory is in a non-empty state, the target frequency domain associated data is converted from the frequency domain to the time domain through the third sub-function module to obtain target time domain associated data; calculating the power of all CRS OFDM symbols in the target time domain associated data and the power RSRP of the corresponding reference signals through the third sub-functional module; and obtaining an instruction RSRQ of the reference signal through the third sub-functional module according to the power RSRP of the reference signal and the strength indication RSSI of the received signal.

In an embodiment, the third sub-function module sends a HLS ping memory release flag or a HLS pong memory release flag to the second sub-function module; entering an END state through a third sub-functional module, and switching to an IDLE state.

In an embodiment, after the third sub-functional module sends the HLS ping memory release flag or the HLS pong memory release flag to the second sub-functional module, if the second sub-functional module receives the HLS ping memory release flag or the HLS pong memory release flag, the HLS ping memory or the HLS pong memory is correspondingly released.

In a second aspect, an embodiment of the present application provides a multi-cell measurement apparatus, including:

the processing unit is used for determining a cell to be measured according to a data signal received from the access network equipment through the first sub-function module, wherein the data signal carries associated data of a plurality of different cells, the cell to be measured is any cell to be measured in a cell set to be measured, and the cell to be measured corresponds to target associated data in the data signal;

the processing unit is further configured to convert the target-related data from a time domain to a frequency domain through the second sub-function module, and obtain target-frequency-domain-related data and an intensity indication RSSI of a received signal of the cell to be measured;

the processing unit is further configured to convert the target frequency domain related data from a frequency domain to a time domain through the third sub-function module, and obtain a power RSRP of a reference signal of the cell to be measured and a quality RSRQ of the reference signal.

In a third aspect, an embodiment of the present application provides a multi-cell measurement apparatus, including a processor, a memory, and a user interface, where the processor, the memory, and the user interface are connected to each other, where the memory is used to store a computer program, and the computer program includes program instructions, and the processor is configured to call the program instructions to perform the multi-cell measurement method as described in the first aspect.

In a fourth aspect, embodiments of the present application provide a computer-readable storage medium storing one or more instructions adapted to be loaded by a processor and execute the multi-cell measurement method as described in the first aspect.

In the embodiment of the application, the terminal device may determine the cell to be measured according to the data signal received from the access network device through the first sub-function module, where the data signal carries associated data of a plurality of different cells, the cell to be measured is any one cell to be measured in the set of cells to be measured, and the cell to be measured corresponds to the target associated data in the data signal; converting the target associated data from a time domain to a frequency domain through a second sub-function module to obtain target frequency domain associated data and an intensity indication RSSI of a received signal of a cell to be measured; and converting the target frequency domain associated data from a frequency domain to a time domain through a third sub-functional module to obtain the power RSRP of the reference signal of the cell to be measured and the quality RSRQ of the reference signal. By the method, the speed of multi-cell measurement can be improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic diagram of a method for multi-cell measurement according to an embodiment of the present disclosure;

fig. 2 is a system architecture diagram of a multi-cell measurement according to an embodiment of the present disclosure;

fig. 3a is an architecture diagram of a first sub-function module according to an embodiment of the present application;

FIG. 3b is an architecture diagram of a second sub-function module according to an embodiment of the present application;

FIG. 3c is an architecture diagram of a third sub-function module according to an embodiment of the present application;

fig. 4 is a schematic flowchart of a multi-cell measurement according to an embodiment of the present disclosure;

fig. 5a is a schematic diagram illustrating a method for receiving a data signal according to an embodiment of the present application;

fig. 5b is a schematic diagram of a method for sampling a data signal according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a radio frame according to an embodiment of the present disclosure;

fig. 7 is a schematic diagram of a cell validity determination method according to an embodiment of the present application;

FIG. 8 is a schematic diagram of a first-in first-out (FIFO) memory according to an embodiment of the present disclosure;

fig. 9 is a schematic diagram of a multi-cell measurement apparatus according to an embodiment of the present disclosure;

fig. 10 is a simplified schematic physical structure diagram of a multi-cell measurement apparatus according to an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

In order to better understand the embodiments of the present application, the following terms refer to the embodiments of the present application:

received Signal Strength Indication (RSSI): an optional part of the radio transmission layer is used to determine the link quality and whether to increase the broadcast transmission strength.

Reference Signal Receiving Quality (RSRQ): this metric is primarily a function of signal quality to rank the different LTE candidate cells. This measurement is used as input for handover and cell reselection decisions.

Reference Signal Received Power (RSRP): one of the key parameters that can represent radio signal strength in LTE networks and physical layer measurement requirements is the average of the received signal power over all REs (resource elements) that carry reference signals within a certain symbol.

First-in First-out (FIFO) memory: in short, it means that the data stored first is read or output first. Due to the rapid development of microelectronic technology, the capacity of a new generation FIFO chip is larger and smaller, and the price is cheaper and cheaper. As a novel large-scale integrated circuit, the FIFO chip is gradually and widely applied to high-speed data acquisition, high-speed data processing, high-speed data transmission and multi-machine processing systems due to the characteristics of flexibility, convenience and high efficiency.

In order to better understand the embodiments of the present application, a system architecture to which the embodiments of the present application can be applied is described below.

Referring to fig. 2, fig. 2 is a system architecture diagram of a multi-cell measurement according to an embodiment of the present disclosure. The system architecture diagram comprises a first sub-function module, a second sub-function module and a third sub-function module. The first sub-function module may provide a first sub-function, where the first sub-function may be to receive a data signal after synchronization adjustment sent by the access network device, and determine that associated data of each neighboring cell is valid according to a synchronization deviation amount of each neighboring cell with respect to the serving cell. The second sub-function module may provide a second sub-function, which may be to select a suitable Fast Fourier Transform (FFT) to convert the association data of each neighbor cell into frequency domain association data according to the measurement bandwidth. The third sub-function module may provide a third sub-function, where the third sub-function may be to convert the frequency domain associated data of each neighboring cell back to the time domain associated data through Inverse Fast Fourier Transform (IFFT), calculate power, and then calculate RSRP and RSRQ of each neighboring cell. The first sub-function module can provide information related to cell measurement for the second sub-function module through a first-in first-out (FIFO) memory, and the second module can provide information related to cell measurement for the third sub-function module through a channel frequency domain estimation result (HLS) ping or pong memory. The third sub-functional module obtains the HLS ping or pong memory full flag from the second sub-functional module, which indicates that the corresponding HLS ping or pong memory stores the cell measurement related information, and the third sub-functional module can read the currently stored cell measurement related information in the HLS ping or pong memory. When the third sub-function module finishes processing the cell measurement related information, the HLS ping or pong memory release flag may be sent to the second sub-function module, so that the second sub-function module may correspondingly release the HLS ping or pong memory.

As shown in fig. 3a, the architecture of the first sub-function module may include a data receiving module, a cell validity determining module, a circular memory, and a first-in-first-out (FIFO) memory. Wherein, each of the cell #1 to the cell # y has an independent validity determination module. When the data receiving module receives a segment of data signal, the data receiving module can sample the segment of data signal, identify a cell corresponding to a segment of data from the sampled data signal, judge whether the cell can be measured or not according to the segment of data through the corresponding cell validity judging module, and determine that the cell is valid if the cell can be measured. In addition, after receiving a segment of data signal, the data receiving module also stores the segment of data signal into the circular memory.

As shown in fig. 3b, an architecture diagram of the second sub-functional module may include a HLS ping memory and a HLS pong memory. The second subfunction can store the generated information into the HLS ping memory or the HLS pong memory, so that the third subfunction module can obtain the information by reading the HLS ping memory or the HLS pong memory. The second sub-function may enter an IDLE (IDLE) state, a read FIFO state (RD _ FIFO), an FFT + RSSI state, an HLS state, and an END (END) state. The different states may be switched by a state machine.

As shown in fig. 3c, which is an architecture diagram of the third sub-function module, the architecture may include a power memory, and the third sub-function module may store the power value in the power memory every time the power value is calculated. The third sub-function may enter an IDLE (IDLE) state, an IFFT + PDP (power) state, an HLS state, and an END (END) state. The different states may be switched by a state machine.

The present invention is applicable to a 5th generation (5g) communication system, a 4G or 3G communication system, and a future new communication system, for example, a 6G or 7G or in-vehicle short-range communication system. The technical solution of the present invention is also applicable to different network architectures, including but not limited to a relay network architecture, a dual link architecture, a Vehicle-to-any-object communication (Vehicle-to-event) architecture, an in-Vehicle short-distance communication architecture, and the like.

The access network device related in the embodiment of the present application is an entity for transmitting or receiving a signal on a network side, and may be configured to perform inter-conversion between a received air frame and a network Protocol (IP) packet, and serve as a router between a terminal device and the rest of the access network, where the rest of the access network may include an IP network and the like. The access network device may also coordinate management of attributes for the air interface. For example, the access network device may be an eNB in LTE, may also be a New Radio Controller (NR Controller), may be a gNB in a 5G system, may be a Centralized network element (Centralized Unit), may be a New Radio base station, may be a Radio remote module, may be a micro base station, may be a Relay (Relay), may be a Distributed network element (Distributed Unit), may be a Reception Point (TRP) or a Transmission Point (TP), and may be a G node in an in-vehicle short-distance communication system or any other wireless access device, but the embodiment of the present invention is not limited thereto.

The terminal device in the embodiments of the present application is an entity for receiving or transmitting signals at a user side. The terminal device may be a device providing voice and/or data connectivity to a user, e.g. a handheld device, a vehicle mounted device, etc. with wireless connection capability. The terminal device may also be other processing devices connected to the wireless modem. The terminal device may communicate with a Radio Access Network (RAN). The Terminal Device may also be referred to as a wireless Terminal, a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile), a Remote Station (Remote Station), an Access Point (Access Point), a Remote Terminal (Remote Terminal), an Access Terminal (Access Terminal), a User Terminal (User Terminal), a User Agent (User Agent), a User Device (User Device), a User Equipment (User Equipment, UE), or the like. The terminal equipment may be mobile terminals such as mobile telephones (otherwise known as "cellular" telephones) and computers having mobile terminals, e.g. portable, pocket, hand-held, computer-included or vehicle-mounted mobile devices, which exchange language 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), or the like. Common terminal devices include, for example: the Mobile terminal may be a Mobile phone, a tablet computer, a laptop computer, a palmtop computer, a Mobile Internet Device (MID), a vehicle, a roadside Device, an aircraft, a T node, a wearable Device, such as a smart watch, a smart bracelet, a pedometer, and the like, but the embodiment of the present application is not limited thereto. The communication method and the related device provided by the present application are described in detail below.

In order to improve the speed of multi-cell measurement, embodiments of the present application provide a multi-cell measurement method and apparatus, and details of the multi-cell measurement method and apparatus provided in the embodiments of the present application are further described below.

Referring to fig. 4, fig. 4 is a flowchart illustrating a multi-cell measurement receiving method according to an embodiment of the present disclosure. When the method is applied to the terminal equipment, the method can comprise the following steps:

410. and determining a cell to be measured according to a data signal received from the access network equipment by using the first sub-function module, wherein the data signal carries associated data of a plurality of different cells, the cell to be measured is any cell to be measured in a cell set to be measured, and the cell to be measured corresponds to target associated data in the data signal.

In a possible implementation manner, before determining the cell to be measured by the first sub-function module, a data receiving module in the first sub-function module is required to acquire a data signal sent by the access network device through the serving cell, where the terminal device is currently connected to the access network device and resides in the serving cell. Since the data transmission is not completed immediately, the data receiving module receives the corresponding data signals according to the data transmission sequence in the data signals. The system bandwidth supported by the terminal device may be 1.4MHz (megahertz), 3MHz, 5MHz, 10MHz, 15MHz, 20MHz, and the like, and the system bandwidth may be a bandwidth of a channel carrying a data signal, and in this embodiment of the application, the system bandwidth is 20MHz, and the frequency of a carrier carrying the data signal is 30.72MHz, for example. As shown in fig. 5a, a schematic diagram of a method for receiving a Data signal is shown, when a Data signal (Rx _ Data) is received, a Data receiving module determines whether a currently received Data signal is valid through a received Data valid signal Flag (Rx _ Data _ Flag), where the Rx _ Data _ Flag may be a pulse. When Rx _ Data _ Flag is set high, it represents that the corresponding Data is valid. For example, when Rx _ Data _ Flag1 is high, it indicates that Data 1 (Data _ 1) is valid. After the data receiving module receives all the data, the data receiving state can be ended by the receiving completion signal (Rx _ Finish). Rx _ Data may include n +1 Data in total, and n may be determined according to the size of Data transmitted by the access network device. The size of the data signal should be smaller than a certain value to be received, for example, the size of the data signal is less than 10 subframes.

It should be noted that, as shown in fig. 6, one radio frame may include 10 subframes, 1 subframe may include 2 slots, and 1 slot may include 7 symbols, which may be OFDM symbols. Of course, 1 slot may also include 6 OFDM symbols, and in the embodiment of the present application, for example, 1 slot includes 7 symbols. If the frequency of the carrier carrying the Data signal is 30.72MHz, it indicates that the receiving Data module can receive 30720 Rx _ Data in 1ms, and 1ms can be the duration of transmitting one subframe, so that one subframe can include 30720 Rx _ Data. The data signal may be a maximum of 10 subframes, that is, the data receiving module may receive at most one radio frame at the same time.

The data of a specific sequence number in the data signal to the data of another specific sequence number may correspond to a cell, which may be a neighboring cell, and all the data of the specific sequence number in the data signal to the data of another specific sequence number may constitute one or more subframes. For example, data p to Data q in Rx _ Data correspond to the neighbor cell # y. In the embodiment of the present application, the data p to the data q may be referred to as target related data of the neighboring cell # y, and if the neighboring cell # y is determined to be valid in the subsequent cell validity determination, the neighboring cell # y may be referred to as a cell to be measured. The neighboring cell may be a neighboring cell in the access network device to which the terminal device is currently connected, or may be a neighboring cell in other access network devices around the terminal device. The data signal received by the terminal device is already synchronized, and the data of the current serving cell should be at a specific position in the data signal, that is, the terminal device knows the radio frame number, the subframe number, and the specific OFDM symbol of the data of the serving cell. Since the data signal is synchronized, the terminal device can also know the positions of the data of other neighboring cells in the data signal, that is, know the radio frame number, subframe number, and specific OFDM symbol of the data of a certain neighboring cell.

In one possible implementation, each time the receive data module receives a data, it may store the data in a circular memory, which may be a Buffer memory. The circular memory may store data of 2 subframes in size, or data transmitted within 2ms, which may be read by the second sub-function module for use as subsequent cell measurement information. In the embodiment of the present application, the circular memory can store 30720 × 2=61440 data. When the storage address reaches the maximum address (i.e., address 61439), the previous data should be deleted from the return address 0, and new data should be written. Since the data receiving frequency or sampling frequency of the data receiving module is 30.72MHz or less, and the functional clock frequency of the subsequent cell measurement is 250MHz, the period of writing to the input cyclic memory is much longer than that of reading the cyclic memory. In order to save memory area, the embodiment of the present application does not use a dual-port memory (one port is fixed for reading and one port is fixed for writing), but uses a single-port memory. When the same address read-write conflicts, the write-in is needed to be carried out prior to the read, and the read is delayed for 1 cycle for reprocessing.

In a possible implementation manner, the data receiving module may sample the received data while receiving the data to obtain sampling data signals corresponding to different system bandwidths, and the sampling data signals may be used for the cell validity determination module in the first sub-function module to perform cell validity determination. The sampled data signals are a subset of data signals carrying sampled association data for a plurality of different cells. The purpose of sampling may be to reduce the amount of computation by the cell validity determination module. The sampling frequency of the data receiving module may be changed according to different system bandwidths, and in the embodiment of the present application, when the system bandwidth is 20MHz, the sampling frequency may be 30.72MHz, so that each data may be sampled. And when the system bandwidth is 10MHz, the sampling frequency is half of 30.72MHz, namely 15.36MHz, and only one of every two data is sampled. As shown in fig. 5b, the Rx Data module samples Rx _ Data once every two Rx _ Data _ Flag pulses, and obtains 10m _rx _ Data. The 10m _rx _dataindicates a sampled data signal sampled from a received data signal when the system bandwidth is 10MHz, and includes data 1, data 3, data 5, \8230;, data n, and may be data 2, data 4, data 6, \8230;, data n +1, in the data signal. The Data size of 10M _Rx _ Data is one-half of the size of Rx _ Data. In addition, when the system bandwidth is 5MHz, the Data receiving module samples Rx _ Data once every 4 Rx _ Data _ Flag pulses, so as to obtain a Data size of 5m _rx _data,5m _rx _datawhich is one-fourth of the size of Rx _ Data, 20118. In this embodiment of the present application, with the difference of the system bandwidth, which sampling frequency is adopted by the data receiving module to sample the data signal may be preconfigured by the terminal device or the access network device.

Data in the sampled Data signal (10 m _rx _data) obtained at a sampling frequency of 10MHz is half that of Rx _ Data, but the corresponding Data corresponds to one cell. For example, data p to Data q in Rx _ Data correspond to a neighbor cell # y, wherein q-p numbers exist between p and q; and the data in 10M _Rx _ data may be data p through data q, where there is approximately (q-p)/2 numbers in the middle of p through q; or 10M _Rx _Datamay be data p +1 through data q-1, where p through q also have approximately (q-p)/2 numbers in between. That is, as long as sampling is performed on data p to data q, the resulting sampled data signal may correspond to the neighboring cell # y. In this embodiment, data sampled from data p to data q may be referred to as sampling related data of a neighboring cell # y, if the neighboring cell # y is determined to be valid in subsequent cell validity determination, the neighboring cell # y may be referred to as a cell to be measured, and the sampling related data in the first subframe in the neighboring cell # y may be referred to as target sampling related data. Similarly, the characteristic can be applied to the conditions that the system bandwidth is 1.4MHz, 3MHz, 5MHz, 10MHz, 15MHz, 20MHz and the like.

In a possible implementation manner, after the data signal is sampled by the data receiving module, the sampled data may be transmitted to the cell validity determining module. And the sampled data signal corresponding to each cell is received by the cell validity judgment module corresponding to the cell, that is, each cell validity judgment module only judges the validity of the corresponding cell. For example, the sampling related data corresponding to the neighboring cell #1 is determined by the cell #1 validity determining module, and the sampling related data corresponding to the neighboring cell # y is determined by the cell # y validity determining module.

Fig. 7 is a schematic diagram of a cell validity determination method, wherein D _1, D _2, etc. indicate received data renumbering of sampled data signals (sampled data signals), such as data 1, data 3, data 5 8230, data n numbers D _1, D _2, D3 8230, data n numbers D8230, D (n/2) in 10m _rx _datain fig. 5 b. For convenience of explanation, fig. 5b is independent from fig. 7, so that an item in fig. 7, which should be numbered n/2, is changed to n. As shown in fig. 7, in the sampled data signal, D _ i to D _ j correspond to the first subframe (subframe 0) of the neighboring cell #1, and may also be referred to as target sample related data of the neighboring cell # 1. Wherein, D _ i is the first data of the header of the adjacent cell # y, and D _ j is the last data of the header of the adjacent cell # y. After receiving the data signal, the data receiving module knows the radio frame header (i.e., the first subframe in the radio frame) of the associated data of the current serving cell, and can also know the synchronization deviation amount of each neighboring cell with respect to the serving cell, and can obtain the radio frame header of each neighboring cell. In this way, the validity of each neighbor cell can be independently determined. In the embodiment of the present application, the header of the radio frame, the first subframe, and the subframe 0 all indicate the same meaning. In fig. 7, D _ l to D _ n are part of subframe 0 (i.e., OFDM0 to OFDM 10) of the neighboring cell # 9; d _ m to D _ n are part of sub-frame 0 of neighbor cell #10 (i.e., OFDM0 to OFDM 5).

In a possible implementation manner, the method for determining the validity of the neighboring cell may be: if the number of CRS OFDM symbols included in subframe 0 (target sampling associated data) of one neighboring cell meets a preset number condition, determining, by the first sub-function module, that the cell corresponding to the target sampling associated data is the cell to be measured. Wherein, the preset number condition may be that 3 or 4 Cell Reference Signal (CRS) OFDM symbols are included in the subframe 0 corresponding to one neighboring Cell, and it is determined that the data in the subframe 0 can be used for performing measurement of the neighboring Cell, that is, the neighboring Cell is valid. For example, in fig. 7, of 14 symbols in the subframe 0 corresponding to the neighbor cell #1, OFDM0, OFDM4, OFDM7, and OFDM11 are CRS OFDM symbols, that is, there are 4 CRS OFDM symbols, which may be used for measurement of the current neighbor cell # 1. In the present invention, the symbols of CRS OFDM are bolded in the drawing and the symbol size is increased, and in practical applications, the determination may be achieved by adding CRS identifiers, which is not limited in the embodiment of the present invention.

For neighbor cell #9, D _lthrough D _ n are part of subframe 0 (i.e., OFDM0 through OFDM 10) of neighbor cell # 9. In OFDM0 to OFDM10, OFDM0, OFDM4, and OFDM7 are CRS OFDM symbols, that is, there are 3 CRS OFDM symbols, which can be used for measurement of the current neighbor cell # 9. Where D _ l is the first data of subframe 0 of neighbor cell #9 and D _ n is the last data of subframe 0 of neighbor cell # 9.

For neighbor cell #10, D _mthrough D _ n are part of subframe 0 of neighbor cell #10 (i.e., OFDM0 through OFDM 5). In OFDM0 to OFDM5, OFDM0 and OFDM4 are CRS OFDM symbols, that is, only 2 CRS OFDM symbols are insufficient for measurement of the current neighboring cell #10, and it is determined that the neighboring cell #10 has no validity. Where D _ m is the first data of subframe 0 of neighbor cell #10 and D _ n is the last data of subframe 0 of neighbor cell #10.

Note that, in fig. 7, the neighboring cell #9 and the neighboring cell #10 have an overlapping portion in the data signal, and here, the case of only two data signals is not meant to represent that one data signal includes both the neighboring cell #9 and the neighboring cell #10. The numbers of the neighboring cells shown in fig. 7 are determined by the access network device to which the terminal device is currently connected, and are not necessarily arranged in sequence. The position of the subframe 0 of each neighboring cell in the data signal or the sampled data signal may be determined according to actual conditions, and the embodiment of the present application is not limited. In addition, the example illustrated in fig. 7 is a case where 7 OFDM symbols are included in one slot (referred to as NCP), in which case CRS OFDM symbols in one subframe are present only in four positions of OFDM0, OFDM4, OFDM7, and OFDM 11. And if 6 OFDM symbols (called ECP) are included in one slot, CRS OFDM symbols in one subframe only appear in four positions of OFDM0, OFDM3, OFDM6, and OFDM 9. In the case of ECP, the method for determining the validity of the cell is similar to that of NCP, and is not described herein again. The first sub-function module may increment the sample counter by one each time it is determined that a subframe includes 3 or 4 CRS OFDM symbols.

If it is determined that one neighboring cell is valid, the number corresponding to the neighboring cell may be recorded in a First-in First-out (FIFO) memory, and auxiliary information of the neighboring cell may be generated and recorded at the same time. Wherein the assistance information may indicate CRS OFDM symbols in subframe 0 of the neighbor cell. Specifically, it indicates whether the number of CRS OFDM symbols in the subframe 0 of the neighboring cell is 3 or 4, including the subframe numbers (subframe numbers in the data signal) of the CRS OFDM symbols of the neighboring cell, and the Position (First Position, first _ POS) of the First data in the First CRS OFDM symbol in the subframe in the data signal (the Position of the First data of other CRS OFDM symbols of the neighboring cell may also be calculated by the First _ POS).

The schematic diagram of the FIFO memory can be seen in fig. 8. The FIFO memory records which neighbor cells can make measurements and the auxiliary information corresponding to the neighbor cells that can make measurements. Considering that the second and third sub-functional modules can support a maximum of 8 neighbor cell parallel measurements and ping-pong pipelined measurement cells, the depth of the FIFO memory can be designed to be 2 × 8=16. Considering the need to store the sequence number of the neighbor cell, it can be represented by 3 bits (bit); considering that 3 or 4 CRS OFDM are required to be indicated, it can be represented by 1 bit; considering that the number of subframe numbers may be 10, which may be represented by 5 bits; considering the absolute position First _ POS of the First data corresponding to the First CRS OFDM stored in the subframe in the data signal (since the terminal device supports maximum 10ms reception, that is, the maximum number of data in the data signal is 30720x10=307200), 19 bits may be used for representation. The width of the FIFO memory is thus designed to be 28 bits. When the FIFO memory outputs a non-empty indication signal, it indicates that the number of the neighbor cell (cell to be measured) that can be measured and the corresponding auxiliary information are stored in the FIFO memory. For convenience of illustration, both step 420 and step 430 describe neighbor cells that can be measured as cells to be measured.

420. And converting the target associated data from a time domain to a frequency domain through a second sub-function module to obtain target frequency domain associated data and the strength indication RSSI of the received signal of the cell to be measured.

In a possible implementation manner, the second sub-function module receives a non-empty indication signal sent by the FIFO memory in the first sub-function module, so that the second sub-function module knows that the number and the auxiliary information of the cell to be measured are already stored in the FIFO memory, and can read the number and the auxiliary information of the cell to be measured from the FIFO memory. The second sub-functional module comprises a channel frequency domain estimation result HLS ping memory and a HLS pong memory, and the HLS ping memory and the HLS pong memory are used for storing HLS result information output by the second sub-functional module. The second sub-function module may trigger the state machine, and when the second sub-function module receives a non-empty indication signal sent by the FIFO memory and detects that the HLS ping or pong memory is in an empty state, the state machine may be triggered to switch from an IDLE (IDLE) state to a read first-in first-out FIFO memory (RD _ FIFO) state. The IDLE state is a state after the second sub-function module is powered on and reset. And after the RD _ FIFO state is entered, the second sub-function module reads the FIFO memory and acquires the serial number and the auxiliary information of the cell to be measured. After obtaining the number and the auxiliary information of the cell to be measured, the second sub-function module may read the target associated data of the cell to be measured from the circular memory in the first sub-function module according to the auxiliary information. Specifically, the second sub-function module reads the target associated data through First _ POS in the auxiliary information. The target association data comprises subframes of one or more cells to be measured.

After the target associated data is acquired through the second sub-function module, the state machine can enter a Fast Fourier Transform (FFT) state and a RSSI (FFT + RSSI) calculation state. And converting the target associated data from the time domain to the frequency domain through the second sub-functional module to obtain the target frequency domain associated data and the operation result of the FFT. And the RSSI at the full frequency and resource position on the CRS OFDM can be calculated.

The method for converting the target associated data from the time domain to the frequency domain by the second sub-function module may be: and performing N-point FFT operation on the target associated data. Wherein, the values of N corresponding to the measurement bandwidths of 1.4MHz, 3MHz, 5MHz, 10MHz, 15MHz and 20MHz are respectively 128, 256, 512, 1024, 2048 and 2048. Because the second sub-function module supports FFT operation with different points, compromise between operation resources and operation speed can be considered, and an 8-butterfly method is adopted to carry out intra-stage FFT operation. The processing time of the method is N/8 × M (wherein, N is the number of points, and M is 2^ M = N) cycles (the cycle is 1/(250 MHz)).

And obtaining an FFT operation result, and triggering the state machine to enter a channel frequency domain estimation result (HLS) state by the second sub-functional module. In the HLS state, a local CRS OFDM symbol (a local CRS OFDM symbol is generated according to a currently specified protocol) is generated by using information such as a subframe number of the cell to be measured and the like through the second sub-function module, and the local CRS OFDM symbol and the CRS OFDM symbol in the target frequency domain related data are subjected to conjugate operation to obtain a correlation result of the two, that is, target HLS result information. And storing the target HLS result information into an HLS ping memory or an HLS pong memory according to the CRS OFDM symbol sequence. Wherein, which of the HLS ping or pong memories is empty is stored into which memory; if both memories are empty, one may be randomly selected for storage. After the storage is finished, the second sub-function module can send the HLS ping memory full flag or the HLS pong memory full flag to the third sub-function module, and specifically, which full flag is sent is determined according to the memory, which is selected by the second sub-function module and stores the target HLS result information of the cell to be measured. Finally, the state machine can be triggered by the second sub-function module to enter an END (END) state, and then the END state is switched to an IDLE state.

It should be noted that the HLS ping memory and the HLS pong memory alternately store the target HLS result information. That is, HLS result information of the first cell to be measured is stored in the HLS ping memory, HLS result information of the second cell to be measured is stored in the HLS pong memory, and HLS result information of the third cell to be measured is stored in the HLS ping memory, and so on. And the HLS ping processor or the HLS pong processor can write HLS result information next time after being released. For example, the HLS ping memory stores the HLS result information of the first cell to be measured, so that the HLS result of the second cell to be measured can be stored in the HLS pong memory, and when the HLS ping memory is released, the HLS result information of the third cell to be measured can be stored in the HLS ping memory; after the HLS pong memory is released, HLS result information of the fourth cell to be measured can be stored in the HLS pong memory, and so on. The releasing of the HLS ping or pong memory needs the releasing mark of the HLS ping or pong memory sent by the third subfunction to release. Therefore, the third sub-functional module can be ensured to keep obtaining HLS result information from the HLS ping or pong memory for subsequent data processing. The HLS ping or pong processor can also store target frequency domain related data corresponding to HLS result information.

430. And converting the target frequency domain associated data from a frequency domain to a time domain through a third sub-functional module to obtain the power RSRP of the reference signal of the cell to be measured and the quality RSRQ of the reference signal.

Before the data information does not enter the third sub-function module, the third sub-function module is in an IDLE state, namely, a state after power-on reset. If the third sub-function module receives the HLS ping memory full flag or the HLS pong memory full flag sent by the second sub-function module, it may be determined that the HLS ping memory or the HLS pong memory includes the target HLS result information of the cell to be measured, and the state machine is triggered and the ILDE state enters Inverse Fourier Transform (IFFT) operation and power (PDP) operation (which may be referred to as IFFT + PDP operation state). In the IFFT + PDP operation state, the third sub-function module may convert the target frequency domain associated data from the frequency domain to the time domain to obtain target time domain associated data.

In a possible implementation manner, after the third sub-function module obtains the target HLS result information of the cell to be measured, the target HLS result information may be stored in an IFFT memory, and IFFT operation with 128 fixed points is performed on the target HLS result information. Because the number of points is fixed, the method can adopt serial butterfly operation with extremely low speed and few resources, namely IFFT is realized by only one butterfly, and the running time of the method is N x 2 x M (N is 128, M is 2^ M = N, namely M is 7) cycles (the cycle is 1/(250 MHz)). In the method, reading and writing of the IFFT take one cycle respectively, so that the IFFT outputs a result of one point in 2 cycles, and the power calculation of multiple subframes can be completed at the last stage of the IFFT. Namely, at the last stage of IFFT, one period is used for calculating the power of the current CRS OFDM symbol, and the other period performs AGC (one factor for power amplification or reduction) pull-and-align superposition with the power of the historical CRS OFDM symbol and the historical subframe (sample). When the power of all CRS OFDM symbols is calculated and processed, the trigger state machine may enter a calculate RSRP + RSRQ state. The third sub-function module may calculate a corresponding RSRP according to the set signal region, and obtain an RSRQ according to RSRQ = RSRP/RSSI after calculating the RSSI obtained by the second sub-function module. Thus, the RSRP, the RSRQ and the RSSI all obtain calculation results.

In a possible implementation manner, after obtaining the calculation results of RSRP, RSRQ, and RSSI, the third sub-functional module may send an HLS ping memory release flag or an HLS pong memory release flag to the second sub-functional module. And if the third sub-functional module is the HLS result information read from the HLS ping memory, sending a corresponding HLS ping memory release flag to the second sub-functional module, and so on. And finally, the third sub-function module can trigger the state machine to enter an END (END) state, then the END state is switched to an IDLE state, and the target HLS result information of the next cell to be measured is waited to be acquired.

According to the embodiment of the application, after the first sub-function module receives the data signals sent by the access network equipment, the data signals can be stored in the circulating memory in sequence, the cells to be measured in the plurality of adjacent cells are determined according to the data signals, and the auxiliary information of the cells to be measured is generated. Therefore, the second sub-functional module can acquire the target associated data corresponding to the cell to be measured in the circulating memory in the first sub-functional module through the auxiliary information, perform FFT operation on the target associated data, calculate RSSI (received signal strength indicator) to obtain target frequency domain associated data and target HLS result information, and store the target frequency domain associated data and the target HLS result information in the HLS ping or pong memory. The third sub-function module may perform IFFT operation on the target frequency domain associated data of each cell to be measured, and calculate RSRP and RSRQ, so as to perform subsequent operations such as cell switching and cell reselection. Therefore, each time the third sub-functional module acquires the target HLS result information and the target frequency domain associated data of one cell to be measured through the HLS ping or pong memory and completes the processing, the third sub-functional module can acquire the target HLS result information and the target frequency domain associated data of the next cell to be measured through the other memory, so that the second sub-functional module and the third sub-functional module can realize the pipeline processing, and the efficiency of multi-cell measurement is improved.

Please refer to fig. 9, fig. 9 is a schematic unit diagram of a multi-cell measurement apparatus according to an embodiment of the present disclosure. The apparatus of the terminal device shown in fig. 9 may be used to perform some or all of the functions in the method embodiment described in fig. 4 above. The device may be a terminal device, or a device in the terminal device, or a device capable of being used in cooperation with the terminal device.

The logical structure of the apparatus may include: a processing unit 910 and a communication unit 920. When the apparatus is applied to a terminal device:

a processing unit 910, configured to determine, by using a first sub-function module, a cell to be measured according to a data signal received from an access network device, where the data signal carries associated data of multiple different cells, the cell to be measured is any one cell to be measured in a set of cells to be measured, and the cell to be measured corresponds to target associated data in the data signal;

the processing unit 910 is further configured to convert the target-related data from a time domain to a frequency domain through the second sub-function module, so as to obtain target-frequency-domain related data and an intensity indication RSSI of a received signal of the cell to be measured;

the processing unit 910 is further configured to convert the target frequency domain related data from a frequency domain to a time domain through the third sub-function module, so as to obtain a power RSRP of a reference signal of the cell to be measured and a quality RSRQ of the reference signal.

In a possible implementation manner, before determining a set of cells to be measured according to a data signal received from an access network device by using a first sub-function module, the communication unit 920 is configured to obtain, by using the first sub-function module, a data signal sent by the access network device through a serving cell, where the serving cell is a cell where a terminal device currently resides; the processing unit 910 is further configured to store the target associated data in the circular memory through the first sub-function module.

In a possible implementation manner, the processing unit 910 is further configured to sample a data signal through the first sub-function module to obtain a sampled data signal for cell validity determination, where the sampled data signal is a subset of the data signal and carries sampling associated data of multiple different cells; if the number of cell specific reference signal CRS OFDM symbols included in target sampling associated data corresponding to the target associated data meets a preset number condition, determining the cell corresponding to the target sampling associated data as a cell to be measured through a first sub-function module; and generating auxiliary information of the cell to be measured through the first sub-function module, wherein the auxiliary information is used for indicating a cell specific reference signal (CRS) OFDM symbol in target sampling associated data of the cell to be measured.

In a possible implementation manner, before the target-related data is converted from the time domain to the frequency domain by the second sub-function module to obtain the target-frequency-domain related data and the strength indication RSSI of the received signal of the cell to be measured, the processing unit 910 is further configured to store the auxiliary information of the cell to be measured through a first-in first-out FIFO memory in the first sub-function module.

In a possible implementation manner, the second sub-function module includes a channel frequency domain estimation result HLS ping memory and a HLS pong memory, and the HLS ping memory and the HLS pong memory are used for storing HLS result information output by the second sub-function module;

in a possible implementation manner, if the terminal device is in an IDLE state, the first-in first-out FIFO memory is in a non-empty state, and the HLS ping memory and/or the HLS pong memory are/is in an empty state, the second sub-function module enters a read first-in first-out FIFO memory RD _ FIFO state; acquiring auxiliary information from a first-in first-out (FIFO) memory through a second sub-functional module; acquiring target associated data from the circulating memory through the second sub-functional module according to the auxiliary information; and converting the target associated data from a time domain to a frequency domain through a second sub-function module to obtain target frequency domain associated data and the strength indication RSSI of the received signal of the cell to be measured.

In a possible implementation manner, after the target-related data is converted from the time domain to the frequency domain by the second sub-function module to obtain the target-frequency-domain-related data and the strength indication RSSI of the received signal of the cell to be measured, the processing unit 910 is further configured to enter the HLS state by the second sub-function module, and perform HLS operation according to the target-frequency-domain-related data to obtain target HLS result information; storing the target HLS result information into an HLS ping memory or an HLS pong memory through a second sub-functional module; sending a HLS ping memory full mark or a HLS pong memory full mark to a third sub-functional module through a second sub-functional module; and entering an END state through the second sub-function module, and switching to an IDLE state.

In a possible implementation manner, after the second sub-function module sends the HLS ping memory full flag or the HLS pong memory full flag to the third sub-function module, the processing unit 910 is further configured to determine that the HLS ping memory or the HLS pong memory includes the target HLS result information if the third sub-function module receives the HLS ping memory full flag or the HLS pong memory full flag.

In a possible implementation manner, the processing unit 910 is further configured to, if the terminal device is in an IDLE state and the HLS ping memory or the HLS pong memory is in a non-empty state, convert the target frequency domain related data from the frequency domain to the time domain through the third sub-function module to obtain target time domain related data; calculating the power of all CRS OFDM symbols in the target time domain associated data and the power RSRP of the corresponding reference signals through the third sub-functional module; and obtaining an instruction RSRQ of the reference signal according to the power RSRP of the reference signal and the strength indication RSSI of the received signal through a third sub-functional module.

In a possible implementation manner, the processing unit 910 is further configured to send, to the second sub-functional module, an HLS ping memory release flag or an HLS pong memory release flag through the third sub-functional module; entering an END END state through the third sub-function module, and switching to an IDLE IDLE state.

In a possible implementation manner, after the third sub-functional module sends the HLS ping memory release flag or the HLS pong memory release flag to the second sub-functional module, the processing unit 910 is further configured to correspondingly release the HLS ping memory or the HLS pong memory if the second sub-functional module receives the HLS ping memory release flag or the HLS pong memory release flag.

Referring to fig. 10, fig. 10 is a simplified schematic diagram of an entity structure of a multi-cell measurement apparatus according to an embodiment of the present disclosure, where the apparatus includes a processor 1010, a memory 1020, and a communication interface 1030, and the processor 1010, the memory 1020, and the communication interface 1030 are connected by one or more communication buses.

The processor 1010 is configured to support the communication device to perform the corresponding functions of the method of fig. 4. It should be understood that, in the embodiment of the present application, the processor 1010 may be a Central Processing Unit (CPU), and the processor may also be other general-purpose processors, digital Signal Processors (DSPs), application Specific Integrated Circuits (ASICs), field Programmable Gate Arrays (FPGAs), discrete hardware components, or other programmable logic devices, discrete gate or transistor logic devices. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The memory 1020 is used to store program codes and the like. The memory 1020 in the present embodiment may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example and not limitation, many forms of Random Access Memory (RAM) are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (enhanced SDRAM), synchronous DRAM (SLDRAM), synchronous Link DRAM (SLDRAM), and direct bus RAM (DR RAM).

Communication interface 1030 is used to transmit and receive data, information, messages and the like, and may also be described as a transceiver, transceiving circuitry and the like.

In an embodiment of the present application, when the multi-cell measurement apparatus is applied to a terminal device, the processor 1010 may call the program code stored in the memory 1020 to perform the following operations:

the processor 1010 calls a program code stored in the memory 1020 to determine a cell to be measured according to a data signal received from the access network device through the first sub-function module, wherein the data signal carries associated data of a plurality of different cells, the cell to be measured is any one cell to be measured in a cell set to be measured, and the cell to be measured corresponds to target associated data in the data signal;

the processor 1010 calls a program code stored in the memory 1020 to convert the target associated data from a time domain to a frequency domain through the second sub-function module, so as to obtain target frequency domain associated data and an intensity indication RSSI of a received signal of a cell to be measured;

the processor 1010 calls the program code stored in the memory 1020 to convert the target frequency domain related data from the frequency domain to the time domain through the third sub-functional module, so as to obtain the power RSRP of the reference signal of the cell to be measured and the quality RSRQ of the reference signal.

In a possible implementation manner, before determining a set of cells to be measured according to a data signal received from an access network device by using a first sub-function module, the control communication interface 1030 obtains, by using the first sub-function module, a data signal sent by the access network device through a serving cell, where the serving cell is a cell in which the terminal device currently resides; the processor 1010 calls the program code stored in the memory 1020 to store the target associated data in the loop memory through the first sub-function module.

In a possible implementation manner, the processor 1010 calls a program code stored in the memory 1020 to sample a data signal through the first sub-function module, so as to obtain a sampled data signal for cell validity determination, where the sampled data signal is a subset of the data signal and carries sampling associated data of multiple different cells; if the number of cell specific reference signal CRS OFDM symbols included in target sampling associated data corresponding to the target associated data meets a preset number condition, determining the cell corresponding to the target sampling associated data as a cell to be measured through a first sub-function module; generating auxiliary information of the cell to be measured through the first sub-function module, wherein the auxiliary information is used for indicating a cell specific reference signal (CRS) OFDM symbol in target sampling associated data of the cell to be measured.

In a possible implementation manner, before the target frequency domain related data is converted from the time domain to the frequency domain by the second sub-function module to obtain the target frequency domain related data and the strength indication RSSI of the received signal of the cell to be measured, the processor 1010 calls the program code stored in the memory 1020 to store the auxiliary information of the cell to be measured through the first-in first-out FIFO memory in the first sub-function module.

in a possible implementation manner, if the terminal device is in an IDLE state, the first-in first-out (FIFO) memory is in a non-empty state, and the HLS ping memory and/or the HLS pong memory are/is in an empty state, the second sub-functional module enters a read first-in first-out (RD) -FIFO memory state; acquiring auxiliary information from a first-in first-out (FIFO) memory through a second sub-functional module; acquiring target associated data from the circulating memory through the second sub-functional module according to the auxiliary information; and converting the target associated data from a time domain to a frequency domain through a second sub-function module to obtain target frequency domain associated data and the strength indication RSSI of the received signal of the cell to be measured.

In a possible implementation manner, after the target-related data is converted from the time domain to the frequency domain through the second sub-function module to obtain the target-frequency-domain-related data and the strength indication RSSI of the received signal of the cell to be measured, the processor 1010 calls the program code stored in the memory 1020 to enter the HLS state through the second sub-function module, and performs HLS operation according to the target-frequency-domain-related data to obtain target HLS result information; storing the target HLS result information into an HLS ping memory or an HLS pong memory through a second sub-functional module; sending a HLS ping memory full mark or a HLS pong memory full mark to a third sub-functional module through a second sub-functional module; and entering an END state through the second sub-function module, and switching to an IDLE state.

In a possible implementation manner, after the second sub-function module sends the HLS ping memory full flag or the HLS pong memory full flag to the third sub-function module, the processor 1010 invokes the program code stored in the memory 1020, and if the third sub-function module receives the HLS ping memory full flag or the HLS pong memory full flag, determines that the HLS ping memory or the HLS pong memory includes the target HLS result information.

In a possible implementation manner, if the terminal device is in an IDLE state and the HLS ping memory or the HLS pong memory is in a non-empty state, the processor 1010 invokes the program code stored in the memory 1020, and converts the target frequency domain associated data from the frequency domain to the time domain through the third sub-function module to obtain target time domain associated data; calculating the power of all CRS OFDM symbols in the target time domain associated data and the power RSRP of the corresponding reference signals through the third sub-functional module; and obtaining an instruction RSRQ of the reference signal according to the power RSRP of the reference signal and the strength indication RSSI of the received signal through a third sub-functional module.

In one possible implementation, the processor 1010 calls the program code stored in the memory 1020 to send the HLS ping memory release flag or the HLS pong memory release flag to the second sub-functional module through the third sub-functional module; entering an END state through a third sub-functional module, and switching to an IDLE state.

In a possible implementation manner, after the third sub-functional module sends the HLS ping memory release flag or the HLS pong memory release flag to the second sub-functional module, the processor 1010 invokes the program code stored in the memory 1020, and if the HLS ping memory release flag or the HLS pong memory release flag is received by the second sub-functional module, the HLS ping memory or the HLS pong memory is correspondingly released.

It should be noted that, in the foregoing embodiments, descriptions of the respective embodiments are focused on, and reference may be made to relevant descriptions of other embodiments for parts that are not described in detail in a certain embodiment.

The steps in the method of the embodiment of the invention can be sequentially adjusted, combined and deleted according to actual needs.

The units in the processing equipment of the embodiment of the invention can be merged, divided and deleted according to actual needs.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions according to the embodiments of the present application are all or partially generated when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic, digital subscriber line) or wirelessly (e.g., infrared, wireless, microwave, etc.). Computer-readable storage media can be any available media that can be accessed by a computer or a data storage device, such as a server, data center, etc., that includes one or more available media. The usable medium may be a magnetic medium (e.g., floppy Disk, memory Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), among others.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A multi-cell measurement method is applied to a terminal device, wherein the terminal device is connected with an access network device, and the method comprises the following steps:

converting the target associated data from a time domain to a frequency domain through a second sub-function module to obtain target frequency domain associated data and a strength indication (RSSI) of a received signal of the cell to be measured;

converting the target frequency domain associated data from a frequency domain to a time domain through a third sub-functional module to obtain the power RSRP of the reference signal of the cell to be measured and the quality RSRQ of the reference signal;

wherein, the determining the cell to be measured according to the data signal received from the access network equipment by the first sub-function module includes:

sampling the data signal through a first sub-function module to obtain a sampled data signal for cell validity judgment, wherein the sampled data signal is a subset of the data signal and carries sampling associated data of a plurality of different cells;

and if the number of cell specific reference signal CRS OFDM symbols included in the target sampling associated data corresponding to the target associated data meets a preset number condition, determining the cell corresponding to the target sampling associated data as the cell to be measured through a first sub-function module.

2. The method according to claim 1, wherein before determining the set of cells to be measured according to the data signal received from the access network equipment by the first sub-function module, the method further comprises:

acquiring the data signal sent by the access network equipment through a service cell through a first sub-function module, wherein the service cell is a cell in which the terminal equipment resides currently;

and storing the target associated data into a circulating memory through the first sub-function module.

3. The method according to claim 1 or 2, characterized in that the method further comprises:

generating, by a first sub-function module, assistance information of the cell to be measured, the assistance information being used to indicate the cell-specific reference signal, CRS, OFDM symbols in target sampling related data of the cell to be measured.

4. The method according to claim 3, wherein before converting the target-related data from time domain to frequency domain by the second sub-function module, and obtaining target-frequency-domain related data and a strength indicator (RSSI) of the received signal of the cell to be measured, the method further comprises:

and storing the auxiliary information of the cell to be measured through a first-in first-out (FIFO) memory in the first sub-functional module.

5. The method according to claim 1 or 4, wherein the second sub-functional module comprises a channel frequency domain estimation result HLS ping memory and a HLS pong memory, and the HLS ping memory and the HLS pong memory are used for storing HLS result information output by the second sub-functional module;

the converting, by the second sub-function module, the target-related data from a time domain to a frequency domain to obtain target-frequency-domain-related data and a strength indication RSSI of a received signal of the cell to be measured includes:

if the terminal equipment is in an IDLE state, the first-in first-out (FIFO) memory is in a non-empty state, and the HLS ping memory and/or the HLS pong memory are/is in an empty state, the terminal equipment enters a read first-in first-out (FIFO) memory RD _ FIFO state through a second sub-functional module;

acquiring auxiliary information of the cell to be measured from the first-in first-out (FIFO) memory through a second sub-functional module, wherein the auxiliary information is used for indicating the CRS (cell specific reference signal) OFDM symbol in the target sampling associated data of the cell to be measured;

acquiring the target associated data from a circulating memory through a second sub-functional module according to the auxiliary information;

and converting the target associated data from a time domain to a frequency domain through a second sub-function module to obtain target frequency domain associated data and the strength indication RSSI of the received signal of the cell to be measured.

6. The method according to claim 5, wherein after the target-associated data is converted from time domain to frequency domain by the second sub-function module, and the target-frequency-domain-associated data and the Received Signal Strength Indication (RSSI) of the cell to be measured are obtained, the method further comprises:

entering an HLS state through a second sub-functional module, and performing HLS operation according to the target frequency domain associated data to obtain target HLS result information;

storing the target HLS result information into the HLS ping memory or the HLS pong memory through a second sub-functional module;

sending an HLS ping memory full flag or an HLS pong memory full flag to the third sub-functional module through a second sub-functional module;

entering an END END state through a second sub-function module, and switching to the IDLE IDLE state.

7. The method of claim 6, wherein after sending the HLS ping memory full flag or the HLS pong memory full flag to the third sub-functional module through the second sub-functional module, the method further comprises:

and if the third sub-functional module receives the HLS ping memory full mark or the HLS pong memory full mark, determining that the HLS ping memory or the HLS pong memory comprises the target HLS result information.

8. The method according to claim 1 or 6, wherein the second sub-functional module comprises a HLS ping memory and a HLS pong memory, and the HLS ping memory and the HLS pong memory are used for storing HLS result information output by the second sub-functional module;

the converting, by the third sub-function module, the target frequency domain related data from a frequency domain to a time domain to obtain a reference signal RSRP of the cell to be measured and a reference signal quality RSRQ of the cell to be measured includes:

if the terminal equipment is in an IDLE IDLE state and the HLS ping memory or the HLS pong memory is in a non-empty state, converting the target frequency domain associated data from a frequency domain to a time domain through a third sub-functional module to obtain target time domain associated data;

calculating the power of all CRS OFDM symbols in the target time domain associated data and the power RSRP of the corresponding reference signals through a third sub-function module;

and obtaining the instruction RSRQ of the reference signal through a third sub-functional module according to the power RSRP of the reference signal and the strength indication RSSI of the received signal.

9. The method of claim 8, further comprising:

sending a HLS ping memory release mark or a HLS pong memory release mark to the second sub-functional module through a third sub-functional module;

entering an END END state through a third sub-function module, and switching to the IDLE IDLE state.

10. The method of claim 9, wherein after sending the HLS ping memory release flag or the HLS pong memory release flag to the second sub-functional module via the third sub-functional module, the method further comprises:

and correspondingly releasing the HLS ping memory or the HLS pong memory if the HLS ping memory release flag or the HLS pong memory release flag is received through a second sub-functional module.

11. A multi-cell measurement arrangement comprising a processor, a memory and a user interface, the processor, the memory and the user interface being interconnected, wherein the memory is configured to store a computer program comprising program instructions, and wherein the processor is configured to invoke the program instructions to perform the multi-cell measurement method according to any of claims 1 to 10.

12. A computer-readable storage medium having stored thereon one or more instructions adapted to be loaded by a processor and to perform the multi-cell measurement method according to any of claims 1 to 10.