CN110312288B - Method and device for processing continuous search of same-frequency cells and user equipment - Google Patents
Method and device for processing continuous search of same-frequency cells and user equipment Download PDFInfo
- Publication number
- CN110312288B CN110312288B CN201810259526.XA CN201810259526A CN110312288B CN 110312288 B CN110312288 B CN 110312288B CN 201810259526 A CN201810259526 A CN 201810259526A CN 110312288 B CN110312288 B CN 110312288B
- Authority
- CN
- China
- Prior art keywords
- frequency
- same
- processing
- frequency cell
- hardware accelerator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides a method and a device for processing continuous searching of common-frequency cells and user equipment. The method comprises the following steps: in the process of searching the same-frequency cell, before a gap for performing pilot frequency measurement allocated by a base station arrives, a hardware accelerator is configured; the search data and the processing algorithm of the same-frequency cells are moved to a designated storage space through the hardware accelerator; performing pilot frequency measurement in the gap allocated by the base station; and after the gap distributed by the base station is finished, reading the specified storage space, and continuously receiving and processing the same-frequency cell search data. The invention can realize continuous processing after the same-frequency cell search is interrupted by different-frequency measurement, thereby ensuring the detection performance of the same-frequency cell.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, and a user equipment for processing continuous search of cells with the same frequency.
Background
A UE (User Equipment) needs to perform cell search when the UE is turned on, and in order to support mobility, the UE may continuously search for a neighbor cell, acquire synchronization, and estimate reception quality of a cell signal, thereby determining whether to perform handover or cell reselection.
The UE searches for adjacent cells including a same-frequency cell search and a pilot frequency cell search, and in a scheduling scene supporting carrier aggregation, the UE generally adopts a double-radio-frequency chip processing module to simultaneously receive data, one radio-frequency chip receives the same-frequency cell search data, and when a GAP (GAP) for pilot frequency measurement needs to process the pilot frequency cell search, the other radio-frequency chip is used for receiving processing.
At present, in order to reduce power consumption and save chip space, a scheme for processing data of a main cell and an auxiliary cell by only designing a hardware chip processing module for cell search is provided, and the scheme can complete the scheduling of the main cell and the auxiliary cell search in a UE connection state.
In the process of implementing the invention, the inventor finds that at least the following technical problems exist in the prior art:
in order To meet the performance requirement, the same-frequency neighboring cells are detected under the condition of low SNR (Signal To Noise Ratio), and long time of received data is needed To be combined and accumulated. Under the condition, the conflict is easy to occur with the interval period of the pilot frequency measurement, so that the search of the same-frequency adjacent cell is interrupted by the pilot frequency measurement, the continuous processing cannot be carried out, and the resource waste is caused.
Disclosure of Invention
The method, the device and the user equipment for continuously searching and processing the same-frequency cells can realize continuous processing after the searching of the same-frequency cells is interrupted by different-frequency measurement, thereby ensuring the detection performance of the same-frequency cells.
In a first aspect, the present invention provides a method for processing continuous search of cells with same frequency, where the method includes:
in the process of searching the same-frequency cell, before a gap for performing pilot frequency measurement allocated by a base station arrives, a hardware accelerator is configured;
the search data and the processing algorithm of the same-frequency cells are moved to a designated storage space through the hardware accelerator;
performing pilot frequency measurement in the gap allocated by the base station;
and after the gap distributed by the base station is finished, reading the specified storage space, and continuously receiving and processing the same-frequency cell search data.
Optionally, the moving the co-frequency cell search data and the processing algorithm to the specified storage space by the hardware accelerator includes:
and storing the received and processed co-frequency cell search data into the specified storage space through the hardware accelerator, and storing a processing algorithm of the co-frequency cell search data into the specified storage space through the hardware accelerator.
Optionally, the receiving and processing of intra-frequency cell search data includes:
and carrying out merging processing on the received primary synchronization signal or the secondary synchronization signal.
In a second aspect, the present invention provides a device for processing continuous search of cells with same frequency, the device comprising:
the configuration unit is used for configuring a hardware accelerator before a gap which is allocated by a base station and used for carrying out pilot frequency measurement arrives in the process of carrying out co-frequency cell search;
the moving unit is used for moving the same-frequency cell search data and the processing algorithm to a specified storage space through the hardware accelerator;
the first processing unit is used for carrying out pilot frequency measurement in the gap allocated by the base station;
and the second processing unit is used for reading the specified storage space after the gap allocated by the base station is finished, and continuously receiving and processing the same-frequency cell search data.
Optionally, the moving unit is configured to store the received and processed co-frequency cell search data in the specified storage space through the hardware accelerator, and store a processing algorithm of the co-frequency cell search data in the specified storage space through the hardware accelerator.
Optionally, the second processing unit is configured to perform combining processing on the received primary synchronization signal or the secondary synchronization signal.
In a third aspect, the present invention provides a user equipment, where the user equipment includes the above-mentioned apparatus for continuously searching for cells with the same frequency.
According to the method, the device and the user equipment for processing continuous searching of the same-frequency cells, when the situation of different-frequency measurement occurs in the searching process of the same-frequency cells, before the different-frequency measurement distributed by a base station is reached, intermediate processing results of search data of the same-frequency cells are configured to a hardware accelerator, after the intermediate results are stored by the hardware accelerator, searching and measuring of the different-frequency cells are carried out, and after the searching processing of the different-frequency cells is completed and hardware resources are released, the processing of searching of the same-frequency cells is recovered. Compared with the prior art, the method and the device have the advantages that the hardware accelerator is configured before the pilot frequency measurement is achieved, the intermediate result of the searching and processing of the same-frequency cell is stored, the continuous processing of the same-frequency cell after the searching is interrupted by the pilot frequency measurement can be realized, and the detection performance of the same-frequency cell is ensured.
Drawings
FIG. 1 is a flowchart of a co-frequency cell search processing method according to an embodiment;
fig. 2 is a flowchart of a method for processing continuous searching of co-frequency cells according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a continuous searching processing method for co-frequency cells according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a device for continuously searching and processing co-frequency cells according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to meet the performance requirement of low SNR, LTE common-frequency neighbor cell search needs to receive and combine a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS) for a long time, and the length of received data is at most 80 ms. A processing schematic diagram of the same-frequency cell search is shown in fig. 1, the same-frequency adjacent cell search receives 5ms data each time, firstly, the PSS signal is processed in a correlation manner, if the correlation result of the PSS passes a detection threshold, the processing is converted into the SSS correlation processing, otherwise, the data is continuously received according to the step length of 5ms, and the length of receiving the PSS is at most 40 ms; also the relevant processing of SSS receives data in steps of 5ms, with a length of reception of at most 40 ms.
However, the gap period of the pilot frequency measurement in the UE connection state is 40ms or 80ms, and if the pilot frequency measurement is configured in the connection state, the situation of resource robbing of the same frequency and the pilot frequency may occur in many cases. In order to continuously process the same-frequency search data after the gap without wasting the previous process, the invention provides a continuous search processing method for the same-frequency cells, as shown in fig. 2, the method comprises the following steps:
s11, configuring a hardware accelerator before the arrival of the interval for performing pilot frequency measurement allocated by the base station in the process of searching the co-frequency cell;
the method comprises the steps of configuring processing needing to be interrupted to a hardware chip accelerator in advance before INTER frequency (INTER) arrives, enabling the hardware chip to store an intermediate result of the processing in a designated storage space, wherein the intermediate result comprises PSS signals and SSS signals which are subjected to combination processing, and an algorithm for processing the PSS signals and the SSS signals.
S12, moving the same-frequency cell search data and the processing algorithm to a designated storage space through the hardware accelerator;
s13, carrying out pilot frequency measurement in the gap distributed by the base station;
the hardware chip accelerator moves the intermediate result to the designated memory address of the memory space (smooth buffer) which can be read and written quickly, an interrupt is generated after the intermediate result is moved, software is informed of releasing hardware resources, and the processing of pilot frequency measurement can be carried out, wherein the processing of pilot frequency measurement comprises pilot frequency cell search and pilot frequency cell measurement.
And S14, after the gap distributed by the base station is finished, reading the appointed storage space, and continuing to receive and process the same-frequency cell search data.
After the pilot frequency measurement gap distributed by the base station is finished, the hardware accelerator is configured by software to inform the address of the appointed storage area, so that the hardware accelerator continues the unfinished co-frequency cell search processing flow.
As shown in fig. 3, it is a schematic diagram of recovering by using the method for processing continuous searching for INTRA-frequency cells provided in the present invention after INTRA-frequency cell searching (INTRA) is interrupted by INTER-frequency measurement (INTER).
According to the method for continuously searching and processing the same-frequency cells provided by the embodiment of the invention, when the situation of different-frequency measurement occurs in the process of searching the same-frequency cells, before the different-frequency measurement distributed by a base station is reached, an intermediate processing result of the same-frequency cell searching data is configured to a hardware accelerator, the hardware accelerator stores the intermediate result, then the different-frequency cell searching and measuring are carried out, and after the different-frequency cell searching and processing are finished and the hardware resources are released, the processing of the same-frequency cell searching is recovered. Compared with the prior art, the method and the device have the advantages that the hardware accelerator is configured before the pilot frequency measurement is achieved, the intermediate result of the searching and processing of the same-frequency cell is stored, the continuous processing of the same-frequency cell after the searching is interrupted by the pilot frequency measurement can be realized, and the detection performance of the same-frequency cell is ensured.
An embodiment of the present invention further provides a device for processing continuous search of cells with the same frequency, as shown in fig. 4, the device includes:
a configuration unit 11, configured to configure a hardware accelerator before a gap allocated by a base station for performing inter-frequency measurement arrives in a process of performing intra-frequency cell search;
the moving unit 12 is used for moving the same-frequency cell search data and the processing algorithm to the designated storage space through the hardware accelerator;
a first processing unit 13, configured to perform inter-frequency measurement in the gap allocated by the base station;
and a second processing unit 14, configured to read the specified storage space after the gap allocated by the base station is ended, and continue to receive and process the intra-frequency cell search data.
Optionally, the moving unit 12 is configured to store the received and processed co-frequency cell search data in the specified storage space through the hardware accelerator, and store a processing algorithm of the co-frequency cell search data in the specified storage space through the hardware accelerator.
Optionally, the second processing unit 14 is configured to perform combining processing on the received primary synchronization signal or the secondary synchronization signal.
According to the device for continuously searching and processing the same-frequency cells, when the situation of different-frequency measurement occurs in the process of searching the same-frequency cells, before the different-frequency measurement distributed by a base station is reached, an intermediate processing result of the same-frequency cell searching data is configured to a hardware accelerator, the hardware accelerator stores the intermediate result, then the different-frequency cell searching and measuring are performed, and after the different-frequency cell searching and processing are completed and hardware resources are released, the processing of the same-frequency cell searching is recovered. Compared with the prior art, the method and the device have the advantages that the hardware accelerator is configured before the pilot frequency measurement is achieved, the intermediate result of the searching and processing of the same-frequency cell is stored, the continuous processing of the same-frequency cell after the searching is interrupted by the pilot frequency measurement can be realized, and the detection performance of the same-frequency cell is ensured.
The embodiment of the invention also provides user equipment which comprises the same-frequency cell continuous search processing device.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. A method for processing continuous search of cells with same frequency is characterized in that the method comprises the following steps:
in the process of searching the same-frequency cell, before a gap for performing pilot frequency measurement allocated by a base station arrives, a hardware accelerator is configured;
the search data and the processing algorithm of the same-frequency cells are moved to a designated storage space through the hardware accelerator;
performing pilot frequency measurement in the gap allocated by the base station;
after the gap distributed by the base station is finished, reading the specified storage space, and continuously receiving and processing the same-frequency cell search data;
wherein, the moving the same-frequency cell search data and the processing algorithm to the designated storage space by the hardware accelerator comprises:
and storing the received and processed co-frequency cell search data into the specified storage space through the hardware accelerator, and storing a processing algorithm of the co-frequency cell search data into the specified storage space through the hardware accelerator.
2. The method of claim 1, wherein the receiving and processing of intra-frequency cell search data comprises:
and carrying out merging processing on the received primary synchronization signal or the secondary synchronization signal.
3. An apparatus for processing continuous search of cells with same frequency, the apparatus comprising:
the configuration unit is used for configuring a hardware accelerator before a gap which is allocated by a base station and used for carrying out pilot frequency measurement arrives in the process of carrying out co-frequency cell search;
the moving unit is used for moving the same-frequency cell search data and the processing algorithm to a specified storage space through the hardware accelerator;
the first processing unit is used for carrying out pilot frequency measurement in the gap allocated by the base station;
a second processing unit, configured to read the specified storage space after the gap allocated by the base station is ended, and continue to receive and process the co-frequency cell search data;
the moving unit is used for storing the received and processed same-frequency cell search data to the specified storage space through the hardware accelerator, and storing a processing algorithm of the same-frequency cell search data to the specified storage space through the hardware accelerator.
4. The apparatus of claim 3, wherein the second processing unit is configured to perform a combining process on the received primary synchronization signal or the secondary synchronization signal.
5. A user equipment, characterized in that the user equipment comprises the same-frequency cell continuous search processing device according to any one of claims 3 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810259526.XA CN110312288B (en) | 2018-03-27 | 2018-03-27 | Method and device for processing continuous search of same-frequency cells and user equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810259526.XA CN110312288B (en) | 2018-03-27 | 2018-03-27 | Method and device for processing continuous search of same-frequency cells and user equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110312288A CN110312288A (en) | 2019-10-08 |
| CN110312288B true CN110312288B (en) | 2021-11-19 |
Family
ID=68073719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810259526.XA Active CN110312288B (en) | 2018-03-27 | 2018-03-27 | Method and device for processing continuous search of same-frequency cells and user equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110312288B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1288306A (en) * | 1999-09-14 | 2001-03-21 | 日本电气株式会社 | Primary district search method for acturating in high speed searching primary district in CDMA system |
| CN101373988A (en) * | 2008-10-21 | 2009-02-25 | 北京创毅视讯科技有限公司 | Implementing method for alien-frequency district search and mobile terminal |
| CN101883379A (en) * | 2009-05-05 | 2010-11-10 | 上海摩波彼克半导体有限公司 | Method for realizing two-phase measuring optimization of wireless terminal adjacent subdistricts in wireless communication system |
| TW201717683A (en) * | 2015-11-09 | 2017-05-16 | 英特爾Ｉｐ公司 | Intra-frequency and inter-frequency measurement for narrow band machine-type communication |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103473188B (en) * | 2013-09-12 | 2017-04-26 | 华为技术有限公司 | Method, device and system for data interaction between digital signal processor (DSP) and external memory |
-
2018
- 2018-03-27 CN CN201810259526.XA patent/CN110312288B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1288306A (en) * | 1999-09-14 | 2001-03-21 | 日本电气株式会社 | Primary district search method for acturating in high speed searching primary district in CDMA system |
| CN101373988A (en) * | 2008-10-21 | 2009-02-25 | 北京创毅视讯科技有限公司 | Implementing method for alien-frequency district search and mobile terminal |
| CN101883379A (en) * | 2009-05-05 | 2010-11-10 | 上海摩波彼克半导体有限公司 | Method for realizing two-phase measuring optimization of wireless terminal adjacent subdistricts in wireless communication system |
| TW201717683A (en) * | 2015-11-09 | 2017-05-16 | 英特爾Ｉｐ公司 | Intra-frequency and inter-frequency measurement for narrow band machine-type communication |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110312288A (en) | 2019-10-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5708661B2 (en) | Method and user equipment (UE) for selecting cells of a heterogeneous network | |
| CN107211332B (en) | Cell selection method and device | |
| US11089569B2 (en) | User equipment and camping-on method | |
| WO2019144399A1 (en) | Cell reselection method and device, and computer storage medium | |
| US20170094589A1 (en) | Mobile terminal devices, mobile baseband modems, and methods of detecting network access points | |
| CN105451276B (en) | Cell remapping method based on circuit domain dropping CSFB | |
| EP2717625A1 (en) | Method and device for cell changing in heterogeneous network | |
| CN108337716B (en) | Cell selection method, user equipment and base station | |
| EP2695439A1 (en) | Modification of mobility priority based on speed of user equipment and priority for cell operation | |
| CN110636569A (en) | Cell reselection method, reselection parameter sending method, terminal and network equipment | |
| EP3142418A1 (en) | User equipment, base station, cell selection control method, and parameter transmission method | |
| US20150358980A1 (en) | Mobile communication apparatus and radio communication method | |
| WO2013143870A1 (en) | Neighboring cell measurements | |
| JP2016534677A5 (en) | ||
| CN107404737B (en) | Method, device and system for reselecting MTC terminal cell | |
| US9307510B2 (en) | Resource allocation for distributed device-to-device synchronization | |
| CN110896555A (en) | Message processing method and device | |
| CN104869589A (en) | Information measuring and reporting method, information measuring and reporting device, and terminal device | |
| CN113329421B (en) | Frequency point measuring method and device, chip, equipment and storage medium | |
| GB2491617A (en) | Using cached system information to identify candidate neighbour cells | |
| CN105101322B (en) | Method for selecting cell and user equipment | |
| CN110312288B (en) | Method and device for processing continuous search of same-frequency cells and user equipment | |
| CN114698035A (en) | Neighbor cell measurement triggering method and device and computer readable storage medium | |
| WO2023125234A1 (en) | Cell selection or reselection method and apparatus, terminal, and readable storage medium | |
| CN110996354A (en) | Cell reselection method with interference avoidance in mobile communication and device thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |