WO2020258986A1

WO2020258986A1 - Method and device for obtaining radio capability information, storage medium, and electronic device

Info

Publication number: WO2020258986A1
Application number: PCT/CN2020/084016
Authority: WO
Inventors: 付昂
Original assignee: 中兴通讯股份有限公司
Priority date: 2019-06-24
Filing date: 2020-04-09
Publication date: 2020-12-30
Also published as: CN112135289A

Abstract

The present invention provides a method and device for obtaining radio capability information, a storage medium, and an electronic device. The method comprises: receiving first radio capability information sent by a user equipment (UE), wherein the first radio capability information is used for indicating the capability of the UE to access a radio network; looking up whether there is first index information in a radio capability information table stored according to index information as a primary keyword, wherein the first index information is generated according to the first radio capability information; and if the first index information exists in the radio capability information table, obtaining radio capability information corresponding to the first index information from the radio capability information table.

Description

Method and device for acquiring wireless capability information, storage medium and electronic device

Cross references to related applications

This application is filed based on a Chinese patent application with an application number of 201910550758.5 and an application date of June 24, 2019, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby incorporated into this application by way of introduction.

Technical field

The present invention relates to the field of computers, and in particular to a method and device for acquiring wireless capability information, a storage medium, and an electronic device.

Background technique

According to the technical standards of the 3rd Generation Partnership Project (3rd Generation Partnership Project, referred to as 3GPP), user equipment (User Equipment, referred to as UE) must send its radio capability information to the base station so that the base station can combine the information to select for the UE Appropriate wireless resources or provide appropriate services.

When the UE accesses the network for the first time, it sends the UE radio capability information encoded by Abstract Syntax Notation One (ASN.1) to the base station through a radio access control (Radio Resource Control, RRC) message. . The wireless capability of the UE includes various radio access technology (Radio Access Technology, referred to as RAT) related information (for example, power level, frequency band, etc.) that it supports. Therefore, the UE wireless capability information may be large (for example, more than 1000 bytes). According to the definition of 3GPP technical standard 23.008, the UE wireless capability ASN.1 code stream received by the evolved Node B (evolved Node B, referred to as eNB) of a base station can reach a maximum of 8188 bytes.

The base station stores the wireless capability information of the UE in the UE instance while maintaining the connection with the UE. When the UE is released, the base station clears this information along with the UE instance. In order to avoid the need to send the wireless capability to the base station every time the UE accesses the network and cause wireless overload, the base station can send the received UE wireless capability information to the core network for temporary storage. When the subsequent UE accesses the network, the core The network sends the buffered UE radio capability to the base station. The core network clears the UE radio capability information along with the UE instance when the UE goes to register. The base station equipment is a network element that adopts 3GPP technical standards, such as an evolved Node B (evolved Node B, referred to as eNB), and a new radio node B (New Radio Node B, referred to as gNB). The core network equipment is a network element that adopts 3GPP technical standards, such as a mobility management entity (Mobility Management Element, referred to as MME), and access and mobility management function (Access and Mobility Management Function, referred to as AMF).

The wireless capability information of the UE is related to its software and hardware version. On the one hand, for an individual UE, its wireless capability information is stable, that is, each time it accesses the network, the UE's wireless capability information is the same. On the other hand, for multiple UEs listed in the same batch of a certain brand, their wireless capability information is usually the same. However, according to the prior art, both the base station and the core network equipment need to store and maintain UE wireless capability information for each UE served by them, which may consume a large amount of memory resources. For example, assume that the length of the ASN.1 code stream per UE wireless capability is 1000 bytes, and the base station needs to store the ASN.1 code stream of 4000 bytes in addition to the 1000 byte ASN.1 code stream in the UE instance. The latter UE wireless capability information totals 5000 bytes, so for a base station device that supports a maximum of 40,000 UEs, it needs to consume 5000*40,000=200M bytes of memory resources to process the UE wireless capability information. However, the types of UE wireless capability information (ASN.1 code stream) that actually exist in the network are limited, such as 4000 types, so the base station actually only needs to consume 5000*4000=20M bytes of memory resources to process the UE wireless capability information. Similarly, for core network equipment, the maximum number of connected UEs supported by it may reach hundreds of thousands or even millions, and more memory resources may be required to store UE wireless capability information.

In addition, for a given UE, the base station needs to perform ASN.1 decoding on its UE wireless capability every time it accesses the network, especially when the UE’s wireless capability ASN.1 code stream is long (for example, more than 1000 bytes) , ASN.1 decoding operation may become the performance bottleneck of the base station.

On the one hand, the hardware cost of the base station and core network equipment is increased under the premise of the predetermined number of users. On the other hand, it introduces a performance bottleneck for the software processing of the base station and increases the UE access delay, reducing the user's network experience.

In view of the above technical problems, no effective solutions have been proposed in related technologies.

Summary of the invention

The embodiment of the present invention provides a method and device, storage medium, and electronic device for acquiring wireless capability information.

According to an embodiment of the present invention, there is provided a method for acquiring wireless capability information, which includes: receiving first wireless capability information sent by a user equipment UE, wherein the first wireless capability information is used to instruct the UE to access Wireless network capability; in the wireless capability information table stored according to the index information as the primary key, look up whether there is first index information, where the first index information is generated based on the first wireless capability information; In the case where the first index information exists in the wireless capability information table, acquiring the wireless capability information corresponding to the first index information in the wireless capability information table.

According to another embodiment of the present invention, there is provided an apparatus for acquiring wireless capability information, including: a receiving module configured to receive first wireless capability information sent by a user equipment UE, wherein the first wireless capability information is used for Indicate the UE’s ability to access the wireless network; the search module is used to search for the presence of first index information in the wireless capability information table stored according to the index information as the primary key, where the first index information is based on The first wireless capability information is generated; an obtaining module is configured to obtain information corresponding to the first index information in the wireless capability information table when the first index information exists in the wireless capability information table Wireless capability information.

According to yet another embodiment of the present invention, there is also provided a storage medium in which a computer program is stored, wherein the computer program is configured to execute the steps in any one of the foregoing method embodiments when running.

According to yet another embodiment of the present invention, there is also provided an electronic device, including a memory and a processor, the memory stores a computer program, and the processor is configured to run the computer program to execute any of the above Steps in the method embodiment.

Description of the drawings

The drawings described here are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, and do not constitute an improper limitation of the present invention. In the attached picture:

1 is a block diagram of the hardware structure of a mobile terminal of a method for acquiring wireless capability information according to an embodiment of the present invention;

Figure 2 is a flowchart of a method for acquiring wireless capability information according to an embodiment of the present invention;

Figure 3 is a signaling sequence diagram for the long-term evolution network to acquire UE wireless capabilities;

Figure 4 is a signaling sequence diagram for the source eNB to transmit the UE radio capability to the target eNB during the X2 handover preparation process in the LTE network;

Fig. 5 is a block diagram of a UE wireless capability information management device;

Figure 6 is a schematic diagram of the data structure design of the UE wireless capability information hash storage module;

Figure 7 is a working flow chart of an eNB equipment UE wireless capability information management device;

FIG. 8 is a flowchart of storing UE wireless capability information by a hash storage module of eNB equipment UE wireless capability information;

FIG. 9 is a flow chart of the eNB equipment UE wireless capability information hash storage module updating the UE wireless capability information state;

Figure 10 is a working flow chart of the eNB equipment UE wireless capability information monitoring module;

Figure 11 is a working flow chart of the AMF equipment UE wireless capability information management device;

FIG. 12 is a flowchart of storing UE wireless capability information by the hash storage module of UE wireless capability information of the AMF device;

Fig. 13 is a structural block diagram of an apparatus for acquiring wireless capability information according to an embodiment of the present invention.

Detailed ways

Hereinafter, the present invention will be described in detail with reference to the drawings and in conjunction with the embodiments. It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other if there is no conflict.

It should be noted that the terms "first" and "second" in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and not necessarily used to describe a specific sequence or sequence.

The method embodiments provided in the embodiments of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking running on a mobile terminal as an example, FIG. 1 is a hardware structural block diagram of a mobile terminal in a method for acquiring wireless capability information according to an embodiment of the present invention. As shown in FIG. 1, the mobile terminal 10 may include one or more (only one is shown in FIG. 1) processor 102 (the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA. ) And a memory 104 for storing data. Optionally, the above mobile terminal may also include a transmission device 106 and an input/output device 108 for communication functions. Those of ordinary skill in the art can understand that the structure shown in FIG. 1 is only for illustration, and does not limit the structure of the above-mentioned mobile terminal. For example, the mobile terminal 10 may also include more or fewer components than those shown in FIG. 1, or have a different configuration from that shown in FIG.

The memory 104 may be used to store computer programs, for example, software programs and modules of application software, such as the computer programs corresponding to the method for acquiring wireless capability information in the embodiment of the present invention. The processor 102 runs the computer programs stored in the memory 104, Thereby, various functional applications and data processing are executed, that is, the above-mentioned method is realized. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely provided with respect to the processor 102, and these remote memories may be connected to the mobile terminal 10 via a network. Examples of the aforementioned networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

The transmission device 106 is used to receive or send data via a network. The above-mentioned specific example of the network may include a wireless network provided by the communication provider of the mobile terminal 10. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, NIC for short), which can be connected to other network devices through a base station to communicate with the Internet. In an example, the transmission device 106 may be a radio frequency (Radio Frequency, referred to as RF) module, which is used to communicate with the Internet in a wireless manner.

An embodiment of the present application provides a method for acquiring wireless capability information. FIG. 2 is a flowchart of a method for acquiring wireless capability information according to an embodiment of the present invention. As shown in FIG. 2, the process includes the following steps:

Step S202: Receive first wireless capability information sent by user equipment UE, where the first wireless capability information is used to indicate the ability of the UE to access a wireless network;

Step S204, in the wireless capability information table stored according to the index information as the primary key, search for whether there is first index information, where the first index information is generated according to the first wireless capability information;

Step S206, in the case where the first index information exists in the wireless capability information table, obtain the wireless capability information corresponding to the first index information in the wireless capability information table.

Through the above steps, since the first wireless capability information sent by the UE is received, the first wireless capability information is used to indicate the ability of the UE to access the wireless network; in the wireless capability information table stored according to the index information as the primary key, Find whether there is first index information, where the first index information is generated according to the first wireless capability information; in the case where the first index information exists in the wireless capability information table, obtain the wireless capability information table corresponding to the first index information Wireless capability information. The search for the first wireless capability information based on the first index information can be implemented, and the storage of the wireless capability information on the network side can be reduced. Therefore, the problem of repetitive decoding of the UE's wireless capability information, memory occupation, and low wireless capability efficiency can be solved, and the effect of reducing memory can be achieved.

Optionally, the execution subject of the foregoing steps may be the network side, for example, a base station or a core network, but is not limited thereto.

In this embodiment, the index information may be the hash value of the wireless capability information, and the hash value of the wireless capability information may be determined by: determining the address of the wireless capability information and the code stream length of the first wireless capability information; The address of the capability information, the code stream length of the wireless capability information, and the random number are input into the preset hash algorithm model; the hash value of the wireless capability information output by the preset hash algorithm model is received.

It should be noted that the wireless capability information includes the first wireless capability information, the second wireless capability information, and the third wireless capability information in this embodiment. However, the random numbers used for each wireless capability information are different.

For example, determine the address of the second wireless capability information and the code stream length of the second wireless capability information; input the address, code stream length and the first random number into the preset hash algorithm model; receive the output of the preset hash algorithm model The first hash value of the second wireless capability information; the first hash value is determined as the second index information. Determine the address of the second wireless capability information and the code stream length of the second wireless capability information; input the address, code stream length and the second random number into the preset hash algorithm model; receive the first output of the preset hash algorithm model 2. The second hash value of the wireless capability information; the second hash value is determined as the third index information. The third index information is used to verify the UE; the third index information is stored in the wireless capability information table. The first random data is different from the second random number, and the third index information is used to verify the value of the UE. In the case of a collision between the hash values generated by the wireless capability information of the two UEs, pass the second hash value verification Whether the two UEs are the same.

For example, for different UEs, if their first hash value and second hash value are the same, the eNB considers that the wireless capability information of these UEs are the same, and the system only needs to store one copy of the UE wireless capability information.

Optionally, the wireless capability information may be received in the following manner, as shown in FIG. 3, which is a signaling sequence diagram for the eNB in the Long Term Evolution (LTE) network to obtain the UE wireless capability. The eNB sends a UE CAPABILITY ENQUIRY message to query the UE for radio capability information, and the UE sends the ASN.1 encoded radio capability information to the eNB through the UE CAPABILITY INFORMATION message. The eNB saves the received UE radio capability information in the UE instance, and sends it to the MME for storage through the UE CAPABILITY INFO INDICATION message. As shown in Figure 4, it is a signaling sequence diagram for the source eNB to transmit the UE radio capability to the target eNB during the X2 handover preparation process in the LTE network. The source eNB carries the UE wireless capability ASN.1 code stream in the HANDOVER REQUEST message and sends it to the target eNB, and the target eNB saves the received UE wireless capability information in the UE instance.

In an optional embodiment, when the first index information exists in the wireless capability information table, after obtaining the wireless capability information corresponding to the first index information in the wireless capability information table, the first wireless capability information is decoded to obtain The decoded first wireless capability information; the decoded first wireless capability information is stored in the wireless capability information table corresponding to the first index information. In this embodiment, the stored UE wireless capability information also includes information after decoding the wireless capability information ASN.1 code stream, which can prevent the eNB from performing ASN.1 decoding every time the UE accesses, thereby reducing the system load.

In an optional embodiment, after storing the second wireless capability information using the second index information as the primary key, if it is determined that the second wireless capability information is not used within a preset time, the second index information is deleted Corresponding wireless capability information table. For example, the eNB automatically clears the stored UE wireless capability information that has not been used by any UE instance for 12 consecutive hours.

The present invention will be described below in conjunction with specific embodiments:

In order to overcome the problem that the base station in the prior art needs to perform ASN.1 decoding on its wireless capability every time the UE accesses the network, the system performance is reduced and the access delay is increased, and the base station and the core network need to consume a lot of The problem of increasing the cost of equipment by storing UE’s wireless capability information in the memory resources of the mobile communication network provides a method and device for base stations and core network element equipment in a mobile communication network to process UE’s wireless capability information.

The embodiment of the present application provides a method for a base station and a core network to manage UE wireless capability information, including the following steps:

1) For each received UE wireless capability ASN.1 code stream, use a non-encrypted hash algorithm to generate a fixed-length hash value (or called a digital fingerprint), and use the hash value as the primary key to store UE wireless capability information (Including ASN.1 code stream and decoded information). For a newly accessed UE, if the generated hash value already exists in the system, the UE wireless capability information stored in the system is directly used; otherwise, the generated hash value is used as the primary key to store the UE wireless capability information.

2) The system automatically clears the stored UE wireless capability information that reaches the inactivity threshold and reclaims related memory resources. The inactivity threshold is set by the user, for example, no UE instance has used the stored UE radio capability information for 12 consecutive hours.

The embodiment of the present application also provides an apparatus for managing UE wireless capability information, as shown in FIG. 5, including the following modules:

The UE wireless capability information hash management module is used to store and search UE wireless capability information (including ASN.1 code stream and decoded information) using hash value as the primary key;

The UE wireless capability information monitoring module is used to monitor the usage of the UE wireless capability information stored by the system by the UE instance, and automatically clear the UE wireless capability information that reaches the inactivity threshold to recover system memory resources.

In this embodiment, an implementation of the UE wireless capability information management device in the eNB is described. The eNB uses the non-encrypted hash algorithm MurmurHash3 (32bit) to generate a fixed length of 32bit for the UE wireless capability ASN.1 code stream of variable length. The hash value hash1 (the first hash value) is used as the storage primary key. At the same time, the second re-hashing method is used to generate another fixed-length 32-bit hash value hash2 (second hash value) as the check code for the UE wireless capability ASN.1 code stream. The function of the check code is to further distinguish the different UE wireless capability ASN.1 code stream in the case of hash1 collision. For different UEs, if their UE wireless capability ASN.1 code stream generates the same hash1 and the same hash2, the eNB considers the wireless capability information of these UEs to be the same, and the system only needs to store a copy of the UE wireless capability information. . The stored UE wireless capability information also includes the information after decoding the wireless capability ASN.1 code stream, which can prevent the eNB from performing the ASN.1 decoding operation every time the UE accesses, thereby reducing the system load. The eNB automatically clears the stored UE radio capability information that has not been used by any UE instance for 12 consecutive hours.

As shown in Fig. 6, the eNB adopts a data structure method combining an array and a linked list to store and manage UE wireless capability information, where the array size m is set by the user, for example, 10000. The array item with the subscript hash1%m stores the wireless capability information address of the UE whose primary key is hash1, and the conflict of the subscript hash1%m is resolved in a linked list.

As shown in FIG. 7, the workflow of the UE radio capability information management apparatus of the eNB includes the following steps S701 to S704.

Step S701, the UE wireless capability information storage module performs an initialization operation, including creating an array hashTable of size m, and generating 2 random numbers rand1, rand2 in the range of [0, 2^32] based on the current system timestamp.

In step S702, the UE wireless capability information monitoring module starts a period monitoring timer Tmonitor, and the timer duration is set by the user, for example, 1 hour.

Step S703: If the hash storage module receives the UE wireless capability storage request, it executes the UE wireless capability storage process.

Step S704, if the hash storage module receives the UE release instruction, it executes the UE radio capability status update process.

As shown in FIG. 8, the UE wireless capability storage process includes the following steps S801 to S805.

Step S801, the UE wireless capability storage module receives the UE wireless capability ASN.1 code stream

In step S802, the UE wireless capability storage module uses rand1 and rand2 as parameters, and calls MurmurHash3 (32bit) algorithm to generate two hash values hash1 and hash2 for the UE wireless capability ASN.1 code stream.

Step S803, if hashTable[hash1%m] is NULL, or there is no linked list item containing hash1 in the linked list pointed to by hashTable[hash1%m], the newly added linked list item E stores the received UE wireless capabilities, including : Hash1, hash2, ASN.1 code stream, decoded information of ASN.1 code stream, ueNum (=1), inactiveTime (=0). Among them, ueNum represents the number of UE instances in the current eNB that are currently using the UE wireless capability information stored in the linked list item E, and inactiveTime represents the length of time that the UE wireless capability information stored in the linked list item E has not been continuously used by any UE instance in the eNB, The unit is 1 hour. Go to step S605.

Step S804, if there is a linked list item E containing hash1 and hash2 in the linked list pointed to by hashTable[hash1%m], the linked list item E is updated: ueNum=ueNum+1, inactiveTime=0.

Step S805, as a result of the storage process, output the memory address of the linked list item E.

As shown in Figure 9, the UE radio capability information status update process includes the following steps S901 to S902.

Step S901: The UE radio capability information storage module receives the memory address of the linked list item E used by the UE released by the eNB.

Step S902, update the linked list item E: ueNum=ueNum-1.

As shown in FIG. 10, the working process of the UE wireless capability information monitoring module includes the following steps S1001 to S1002:

Step S1001: When the period monitoring timer Tmonitor expires, the UE wireless capability information monitoring module traverses all linked list items according to the hashTable, and updates the variable inactiveTime=inactiveTime+timer Tmonitor duration for the linked list items meeting ueNum=0.

Step S1002, clear all linked list items satisfying inactiveTime>=ThreshInactive. ThreshInactive represents the inactive time threshold set by the user, such as 12 hours.

Step S1003, start the monitoring timer.

This embodiment describes an implementation manner of the UE wireless capability information management apparatus in the AMF device. In this embodiment, the AMF uses the non-encrypted hash algorithm CityHash128 to generate a fixed-length 128-bit hash value hash as the storage primary key for the UE wireless capability ASN.1 code stream of variable length. In this embodiment, the collision probability of the 128-bit hash value has reached the system design requirement, so the hash check code is not added. For different UEs, if their UE wireless capability ASN.1 code stream generates the same hash, the AMF considers that the wireless capability information of these UEs is the same, and the system only needs to store a copy of the UE wireless capability information. AMF automatically clears stored UE wireless capability information that has not been used by any UE instance for 24 consecutive hours.

As shown in Fig. 6, the AMF uses a data structure method combining an array and a linked list to store and manage UE wireless capability information, where the array size m is set by the user, such as 65535. The array item with the subscript hash%m stores the wireless capability information address of the UE whose primary key is hash, and the conflict of the subscript hash%m is resolved in a linked list.

As shown in FIG. 11, the working process of the AMF UE wireless capability information management me device includes the following steps S1101 to S1104.

Step S1101: The UE wireless capability information storage module performs an initialization operation, including establishing an array hashTable of size m, and generating a random number rand in the range of [0, 2^32] based on the current system timestamp.

In step S1102, the UE wireless capability information monitoring module starts a periodic monitoring timer Tmonitor, and the timer duration is set by the user, for example, 1 hour.

Step S1103, if the hash storage module receives the UE wireless capability storage request, it executes the UE wireless capability storage process.

Step S1104, if the hash storage module receives the UE release instruction, it executes the UE radio capability status update process.

As shown in FIG. 12, the UE wireless capability storage process includes the following steps S1201 to S1205.

Step S1201, the UE wireless capability storage module receives the UE wireless capability ASN.1 code stream

In step S1202, the UE wireless capability storage module uses rand as a parameter to call the CityHash128 algorithm to generate a hash value hash for the UE wireless capability ASN.1 code stream.

Step S1203, if hashTable[hash%m] is NULL, or there is no linked list item containing hash in the linked list pointed to by hashTable[hash%m], then newly added linked list item E stores the received UE wireless capabilities, including : Hash, ASN.1 code stream, ueNum (=1), inactiveTime (=0). Among them, ueNum represents the number of UE instances in the current AMF that are currently using the UE wireless capability information stored in the linked list item E, and inactiveTime represents the length of time that the UE wireless capability information stored in the linked list item E has not been continuously used by any UE instance in the AMF, The unit is 1 hour. Go to step S1205.

Step S1204, if there is a linked list item E that contains a hash in the linked list pointed to by hashTable[hash%m], the linked list item E is updated: ueNum=ueNum+1, inactiveTime=0.

Step S1205, as a result of the storage process, output the memory address of the linked list item E.

The UE radio capability information status update process in this embodiment is shown in FIG. 9 and will not be repeated.

The UE radio capability information monitoring process in this embodiment is shown in FIG. 10 and will not be repeated. Among them, the threshold ThreshInactive set by the user is 24 hours.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus the necessary general hardware platform, of course, it can also be implemented by hardware, but in many cases the former is Better implementation. Based on this understanding, the technical solution of the present invention essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, The optical disc) includes a number of instructions to enable a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to execute the method described in each embodiment of the present invention.

The embodiment of the present application also provides a device for acquiring wireless capability information, which is used to implement the above-mentioned embodiments and preferred implementation manners, and those that have been described will not be repeated. As used below, the term "module" can implement a combination of software and/or hardware with predetermined functions. Although the devices described in the following embodiments are preferably implemented by software, hardware or a combination of software and hardware is also possible and conceived.

FIG. 13 is a structural block diagram of a device for acquiring wireless capability information according to an embodiment of the present invention. As shown in FIG. 13, the device includes: a receiving module 1302, a searching module 1304, and an acquiring module 1306. The device will be described below:

The receiving module 1302 is configured to receive first wireless capability information sent by a user equipment UE, where the first wireless capability information is used to indicate the ability of the UE to access a wireless network;

The searching module 1304 is configured to find whether there is first index information in the wireless capability information table stored according to the index information as the primary key, wherein the first index information is generated according to the first wireless capability information;

The acquiring module 1306 is configured to acquire the wireless capability information corresponding to the first index information in the wireless capability information table when the first index information exists in the wireless capability information table.

Through the present invention, since the first wireless capability information sent by the UE is received, the first wireless capability information is used to indicate the ability of the UE to access the wireless network; in the wireless capability information table stored according to the index information as the primary key, Find whether there is first index information, where the first index information is generated according to the first wireless capability information; in the case where the first index information exists in the wireless capability information table, obtain the wireless capability information table corresponding to the first index information Wireless capability information. The search for the first wireless capability information based on the first index information can be implemented, and the storage of the wireless capability information on the network side can be reduced. Therefore, the problem of repetitive decoding of the UE's wireless capability information, memory occupation, and low wireless capability efficiency can be solved, and the effect of reducing memory can be achieved.

Optionally, the radio capability information can be received in the following manner. As shown in FIG. 3, it is a signaling sequence diagram for the eNB in a Long Term Evolution (LTE) network to acquire the UE radio capability, including the following steps:

S301: The eNB sends a UE CAPABILITY ENQUIRY message to query the UE for radio capability information;

S302: The UE sends the ASN.1 encoded radio capability information to the eNB through the UE CAPABILITY INFORMATION message;

S303: The eNB saves the received UE radio capability information in the UE instance, and sends it to the MME for storage through the UE CAPABILITY INFO INDICATION message.

As shown in Figure 4, it is a signaling sequence diagram of the source-side eNB transmitting the UE radio capability to the target-side eNB in the X2 handover preparation process in the LTE network, including the following steps:

S401: The source eNB carries the UE wireless capability ASN.1 code stream in the HANDOVER REQUEST message and sends it to the target eNB;

S402: The target-side eNB saves the received UE radio capability information in the UE instance.

In an optional embodiment, the apparatus further includes: a processing module, configured to receive the second index information sent by the UE before searching whether the first index information exists in the wireless capability information table stored according to the index information as the primary key Wireless capability information, and generate second index information according to the second wireless capability information; the storage module is used to store the second wireless capability information using the second index information as the primary key, wherein the wireless capability information table includes: Capability information, second index information.

It should be noted that each of the above modules can be implemented by software or hardware. For the latter, it can be implemented in the following manner, but not limited to this: the above modules are all located in the same processor; or, the above modules are combined in any combination The forms are located in different processors.

The embodiment of the present application also provides a storage medium in which a computer program is stored, wherein the computer program is configured to execute the steps in any of the foregoing method embodiments when running.

Optionally, in this embodiment, the foregoing storage medium may be configured to store a computer program for executing the foregoing steps.

Optionally, in this embodiment, the foregoing storage medium may include, but is not limited to: U disk, Read-Only Memory (Read-Only Memory, ROM for short), Random Access Memory (Random Access Memory, RAM for short), Various media that can store computer programs, such as mobile hard disks, magnetic disks, or optical disks.

The embodiment of the present application also provides an electronic device, including a memory and a processor, the memory is stored with a computer program, and the processor is configured to run the computer program to execute the steps in any of the foregoing method embodiments.

Optionally, the aforementioned electronic device may further include a transmission device and an input-output device, wherein the transmission device is connected to the aforementioned processor, and the input-output device is connected to the aforementioned processor.

Optionally, in this embodiment, the foregoing processor may be configured to execute the foregoing steps through a computer program.

Optionally, for specific examples in this embodiment, reference may be made to the examples described in the above-mentioned embodiments and optional implementation manners, and details are not described herein again in this embodiment.

Obviously, those skilled in the art should understand that the above-mentioned modules or steps of the present invention can be implemented by a general computing device. They can be concentrated on a single computing device or distributed in a network composed of multiple computing devices. Above, alternatively, they can be implemented with program codes executable by the computing device, so that they can be stored in the storage device for execution by the computing device, and in some cases, can be executed in a different order than here. Perform the steps shown or described, or fabricate them into individual integrated circuit modules, or fabricate multiple modules or steps of them into a single integrated circuit module to achieve. In this way, the present invention is not limited to any specific combination of hardware and software.

The foregoing descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modifications, equivalent substitutions, improvements, etc. made within the principles of the present invention should be included in the protection scope of the present invention.

Claims

A method for acquiring wireless capability information, characterized in that it includes:

Receiving first wireless capability information sent by a user equipment UE, where the first wireless capability information is used to indicate the ability of the UE to access a wireless network;

In the wireless capability information table stored according to the index information as the primary key, search for whether there is first index information, where the first index information is generated according to the first wireless capability information;

In a case where the first index information exists in the wireless capability information table, acquiring the wireless capability information corresponding to the first index information in the wireless capability information table.
The method according to claim 1, characterized in that, before searching whether the first index information exists in the wireless capability information table stored according to the index information as the primary key, the method further comprises:

Receiving second wireless capability information sent by the UE, and generating second index information according to the second wireless capability information;

Using the second index information as a primary key to store the second wireless capability information, wherein the wireless capability information table includes: the second wireless capability information and the second index information.
The method according to claim 2, wherein receiving second wireless capability information sent by the UE, and generating the second index information according to the second wireless capability information comprises:

Determining the address of the second wireless capability information and the code stream length of the second wireless capability information;

Input the address, the length of the code stream, and the first random number into a preset hash algorithm model;

Receiving the first hash value of the second wireless capability information output by the preset hash algorithm model;

The first hash value is determined as the second index information.
The method according to claim 2, wherein after storing the second wireless capability information using the second index information as a primary key, the method further comprises:

Generating third index information according to the second wireless capability information, where the third index information is used to verify the UE;

Storing the third index information in the wireless capability information table.
The method according to claim 1, wherein when the first index information exists in the wireless capability information table, acquiring the wireless capability information corresponding to the first index information in the wireless capability information table After the capability information, the method further includes:

Decoding the first wireless capability information to obtain decoded first wireless capability information;

Storing the decoded first wireless capability information in the wireless capability information table corresponding to the first index information.
The method according to claim 2, wherein after storing the second wireless capability information using the second index information as a primary key, the method further comprises:

In a case where it is determined that the second wireless capability information is not used within a preset time, the wireless capability information table corresponding to the second index information is deleted.
A device for acquiring wireless capability information is characterized by comprising:

A receiving module, configured to receive first wireless capability information sent by a user equipment UE, where the first wireless capability information is used to indicate the ability of the UE to access a wireless network;

A searching module, configured to find whether there is first index information in a wireless capability information table stored according to the index information as the primary key, wherein the first index information is generated according to the first wireless capability information;

The acquiring module is configured to acquire the wireless capability information corresponding to the first index information in the wireless capability information table when the first index information exists in the wireless capability information table.
The device according to claim 7, wherein the device further comprises:

The processing module is configured to receive the second wireless capability information sent by the UE before searching whether the first index information exists in the wireless capability information table stored according to the index information as the primary key, and according to the second wireless capability information Ability information to generate second index information;

A storage module, configured to store the second wireless capability information using the second index information as a primary key, wherein the wireless capability information table includes: the second wireless capability information, and the second index information .
A storage medium, characterized in that a computer program is stored in the storage medium, wherein the computer program is configured to execute the method described in any one of claims 1 to 6 when running.
An electronic device comprising a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute any one of claims 1 to 6 The method described.