CN109565741B

CN109565741B - Method, device and system for acquiring system information

Info

Publication number: CN109565741B
Application number: CN201780045451.9A
Authority: CN
Inventors: 杨宁
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-03-16
Filing date: 2017-03-16
Publication date: 2021-11-23
Anticipated expiration: 2037-03-16
Also published as: CN109565741A; WO2018165955A1

Abstract

The application provides a method, a device and a system for acquiring system information, which relate to the field of communication technology application, wherein the method comprises the following steps: a terminal receives a system information request response sent by a base station, wherein the system information request response comprises transmission mode information, the transmission mode information is used for providing a transmission mode of the system information, and the transmission mode comprises a unicast mode or a broadcast mode; and the terminal acquires the system information sent by the base station according to the transmission mode information. The method and the device can avoid redundant sending of unnecessary information and reduce waste of communication resources. The method and the device are used for acquiring the system information in the mobile communication system.

Description

Method, device and system for acquiring system information

Technical Field

The present disclosure relates to the field of communication technology application, and in particular, to a method, an apparatus, and a system for acquiring system information.

Background

With the rapid development of the mobile communication field, the mobile internet and the internet of things become two main driving forces of future mobile communication, and a wide application scene is provided for the fifth generation mobile communication technology (english: 5 th-generation; abbreviated as 5G). The frequency range in which System Information (SI) in a 5G System can be transmitted can reach up to 100GHz (gigahertz), and for such a high-frequency network, a beamforming method needs to be used between a base station and a terminal (also called User Equipment (UE)) to transmit data, so as to meet the requirement on channel quality in the process of transmitting data in a high-frequency band, and a problem of transmitting data in the beamforming method is how to provide System Information.

The System Information may be transmitted by a Master Information Block (MIB) and a plurality of System Information Blocks (SIBs). In the related art, system information of a Long Term Evolution (LTE) network is transmitted by a base station through omni-directional broadcasting. The SIBs and the MIB both have a fixed transmission period, and each SIBs includes an SIB1 (core system information module, also called basic system information module) and Other (english: Other) SIBs (also called SIBx), and generally scheduling information of the Other SIBs is carried in an SIB1 for broadcasting, where the information transmitted by the SIB1 includes basic system information (english: Minimum SI), and the information transmitted by the Other SIBs includes Other system information (english: Other SI).

However, the current system information is periodically transmitted, which easily causes unnecessary redundant transmission of the system information, resulting in waste of communication resources.

Disclosure of Invention

The invention provides a method, a device and a system for acquiring system information, aiming at solving the problem that the communication resource waste is easily caused in the current acquisition process of the system information. The technical scheme is as follows:

in a first aspect, a method for acquiring system information is provided, including:

a terminal receives a system information request response sent by a base station, wherein the system information request response comprises transmission mode information, the transmission mode information is used for providing a transmission mode of the system information, and the transmission mode comprises a unicast mode or a broadcast mode;

and the terminal acquires the system information sent by the base station according to the transmission mode information.

Optionally, before the terminal receives a system information request response sent by the base station, the method further includes:

and the terminal sends a system information request to the base station, wherein the system information request is used for indicating the attribute information of the system information requested by the terminal in an explicit or implicit mode.

Optionally, the obtaining, by the terminal, system information sent by the base station according to the transmission mode information includes:

when the transmission mode information represents that the transmission mode of the system information is a unicast mode, the terminal sends a specified system information request to the base station, and the specified system information request indicates the system information requested by the terminal in an explicit or implicit mode;

and the terminal receives a request response of the appointed system information sent by the base station, wherein the request response of the appointed system information comprises the system information requested by the terminal.

Optionally, when the transmission mode information includes an indication identifier indicating that the terminal sends the required system information or an identifier indicating that the transmission mode of the system information is a unicast mode, the transmission mode information represents that the transmission mode of the system information is a unicast mode.

and when the transmission mode information represents that the transmission mode of the system information is a broadcast mode, the terminal receives the system information sent by the base station in the broadcast mode.

Optionally, when the transmission mode information includes resource indication information or an identifier indicating that a transmission mode of system information is a broadcast mode, the transmission mode information represents that the transmission mode of the system information is a broadcast mode;

the resource indication information is used for indicating transmission resources occupied by the system information in a broadcast mode.

Optionally, the transmission mode information includes the resource indication information,

the terminal receives the system information sent by the base station in a broadcast mode, and the method comprises the following steps:

and the terminal receives the system information sent by the base station in a broadcasting mode on the transmission resource.

Optionally, the resource indication information includes at least one of a transmission period, a physical resource block, a modulation and coding scheme, and an effective transmission duration.

Optionally, the attribute information is a classification identifier of the system information or a characteristic identifier of the system information.

Optionally, the receiving, by the terminal, a system information request response sent by the base station includes:

and the terminal receives feedback information of the physical random access resource sent by the base station, wherein the feedback information comprises the system information request response.

Optionally, the sending, by the terminal, a system information request to the base station includes:

and the terminal sends a system information request to the base station through physical random access resources.

Optionally, the sending, by the terminal, a request for specifying system information to the base station includes:

and the terminal sends a request for specifying system information to the base station through connection establishment request information or connection establishment recovery or other wireless resource control information.

In a second aspect, a method for acquiring system information is provided, including:

a base station generates a system information request response according to a system information request sent by a terminal, wherein the system information request response comprises transmission mode information, the transmission mode information is used for providing a transmission mode of the system information, and the transmission mode comprises a unicast mode or a broadcast mode;

and the base station sends the system information request response to the terminal.

Optionally, before the base station generates a system information request response according to the system information request sent by the terminal, the method further includes:

the base station receives a system information request sent by a terminal, wherein the system information request is used for indicating attribute information of system information requested by the terminal in an explicit or implicit mode.

Optionally, the generating, by the base station, a system information request response according to the system information request sent by the terminal includes:

the base station counts the total number of received system information requests carrying the same attribute information in a preset time length;

when the total number of the system information requests carrying the same attribute information is larger than a preset number threshold, the base station generates a system information request response, wherein the transmission mode indicated by the transmission mode information in the system information request response is a broadcast mode;

and when the total number of the system information requests carrying the same attribute information is not greater than the preset number threshold, the base station generates a system information request response, wherein the transmission mode indicated by the transmission mode information in the system information request response is a unicast mode.

Optionally, after the base station sends the system information request response to the terminal, the method further includes:

the base station receives a specified system information request sent by the terminal, wherein the specified system information request indicates the system information requested by the terminal in an explicit or implicit mode, and the specified system information request is generated when the transmission mode indicated by the transmission mode information in the received system information request response is a unicast mode;

and the base station sends a request response of the appointed system information to the terminal, wherein the request response of the appointed system information comprises the system information requested by the terminal.

Optionally, when the transmission mode information includes an indication identifier indicating that the terminal sends the required system information or an identifier indicating that the transmission mode of the system information is a unicast mode, the transmission mode information represents that the transmission mode of the system information is a unicast mode;

when the transmission mode information comprises resource indication information or an identifier indicating that the transmission mode of the system information is a broadcast mode, the transmission mode information represents that the transmission mode of the system information is a broadcast mode;

Optionally, the transmission mode information includes the resource indication information, and after the base station sends the system information request response to the terminal, the method further includes:

and the base station sends a request response of the appointed system information to the terminal at the transmission resource.

Optionally, the sending, by the base station, the system information request response to the terminal includes:

and the base station sends feedback information of the physical random access resource to the terminal, wherein the feedback information comprises the system information request response.

Optionally, the receiving, by the base station, a system information request sent by a terminal includes:

and the base station receives a system information request sent by the terminal through physical random access resources.

Optionally, the receiving, by the base station, a request for specifying system information sent by the terminal includes:

and the base station receives a specified system information request sent by the terminal through connection establishment request information or connection establishment recovery or other wireless resource control information.

In a third aspect, an apparatus for acquiring system information is provided, including:

a receiving module, configured to receive a system information request response sent by a base station, where the system information request response includes transmission mode information, the transmission mode information is used to provide a transmission mode of the system information, and the transmission mode includes a unicast mode or a broadcast mode;

and the acquisition module is used for acquiring the system information sent by the base station according to the transmission mode information.

Optionally, the apparatus further comprises:

a sending module, configured to send a system information request to a base station before the terminal receives a system information request response sent by the base station, where the system information request is used to indicate attribute information of system information requested by the terminal in an explicit or implicit manner.

Optionally, the obtaining module includes:

a sending submodule, configured to send a system information specifying request to the base station when the transmission mode information indicates that the transmission mode of the system information is a unicast mode, where the system information specifying request indicates, in an explicit or implicit mode, the system information requested by the terminal;

and the receiving submodule is used for receiving a request response of the appointed system information sent by the base station, wherein the request response of the appointed system information comprises the system information requested by the terminal.

Optionally, the obtaining module is specifically configured to:

and when the transmission mode information represents that the transmission mode of the system information is a broadcast mode, receiving the system information sent by the base station in the broadcast mode.

the acquisition module is specifically configured to: and receiving the system information sent by the base station in a broadcasting mode on the transmission resource.

Optionally, the receiving module is specifically configured to:

and receiving feedback information of the physical random access resource sent by the base station, wherein the feedback information comprises the system information request response.

Optionally, the sending module is specifically configured to:

and sending a system information request to the base station through physical random access resources.

Optionally, the sending sub-module is specifically configured to:

and sending a specified system information request to the base station through connection establishment request information or connection establishment recovery or other wireless resource control information.

In a fourth aspect, an apparatus for acquiring system information is provided, including:

a generating module, configured to generate a system information request response according to a system information request sent by a terminal, where the system information request response includes transmission mode information, the transmission mode information is used to provide a transmission mode of the system information, and the transmission mode includes a unicast mode or a broadcast mode;

and the first sending module is used for sending the system information request response to the terminal.

Optionally, the apparatus further comprises:

a first receiving module, configured to receive a system information request sent by a terminal before a system information request response is generated by the base station according to the system information request sent by the terminal, where the system information request is used to indicate attribute information of system information requested by the terminal in an explicit or implicit manner.

Optionally, the generating module is specifically configured to:

counting the total number of system information requests carrying the same attribute information received in a preset time;

when the total number of the system information requests carrying the same attribute information is larger than a preset number threshold, generating a system information request response, wherein the transmission mode indicated by the transmission mode information in the system information request response is a broadcast mode;

and when the total number of the system information requests carrying the same attribute information is not greater than the preset number threshold, generating a system information request response, wherein the transmission mode indicated by the transmission mode information in the system information request response is a unicast mode.

Optionally, the apparatus further comprises:

a second receiving module, configured to receive, after the base station sends the system information request response to the terminal, a specified system information request sent by the terminal, where the specified system information request indicates, in an explicit or implicit manner, system information requested by the terminal, and the specified system information request is generated by the terminal when a transmission manner indicated by transmission manner information in the received system information request response is a unicast manner;

and the second sending module is used for sending a specified system information request response to the terminal, wherein the specified system information request response comprises the system information requested by the terminal.

Optionally, the transmission mode information includes the resource indication information, and the apparatus further includes:

a third sending module, configured to send a specified system information request response to the terminal at the transmission resource after the base station sends the system information request response to the terminal.

Optionally, the first sending module is specifically configured to:

and sending feedback information of the physical random access resource to the terminal, wherein the feedback information comprises the system information request response.

Optionally, the first receiving module is specifically configured to:

and receiving a system information request sent by the terminal through physical random access resources.

Optionally, the second receiving module is specifically configured to:

and receiving a specified system information request sent by the terminal through connection establishment request information or connection establishment recovery or other wireless resource control information.

In a fifth aspect, a system for acquiring system information is provided, including:

a terminal and a base station, wherein the terminal comprises the system information acquiring device in any one of the third aspect;

the base station includes the apparatus for acquiring system information according to any one of the fourth aspects.

According to the method, the device and the system for acquiring the system information, provided by the embodiment of the invention, the base station can send the system information request response carrying the transmission mode information according to the system information request of the terminal, the terminal can acquire the system information according to the transmission mode information, and the system information is acquired by the terminal in a targeted manner according to the self requirement and is not transmitted periodically, so that compared with the prior art, redundant sending of unnecessary information is avoided, and waste of communication resources is reduced.

Drawings

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

Fig. 1-1 is a schematic diagram of an implementation environment related to a system information acquisition method provided in some embodiments of the present invention;

fig. 1-2 are schematic diagrams of conventional transmission manners of system information;

fig. 2-1 is a schematic flowchart of a method for acquiring system information according to an embodiment of the present invention;

fig. 2-2 is a schematic flow chart of a method for generating a system information request response according to an embodiment of the present invention;

fig. 2-3 are schematic flow diagrams of a method for a terminal to obtain system information according to an embodiment of the present invention;

fig. 3-1 to 3-2 are block diagrams of an apparatus for acquiring system information according to an exemplary embodiment of the present invention;

3-3 are block diagrams of an acquisition module provided by an exemplary embodiment of the invention;

fig. 4-1 to 4-4 are block diagrams of an apparatus for acquiring system information according to another exemplary embodiment of the present invention;

FIG. 5 is a block diagram of an apparatus for acquiring system information according to another exemplary embodiment of the present invention

With the above figures, certain embodiments of the invention have been illustrated and described in more detail below. The drawings and the description are not intended to limit the scope of the inventive concept in any way, but rather to illustrate it by those skilled in the art with reference to specific embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Please refer to fig. 1-1, which illustrates a schematic diagram of an implementation environment related to a method for acquiring system information provided by an embodiment of the present disclosure. The implementation environment may include: at least one base station 101 and a plurality of terminals 102.

In the 5G system, the base station 101 may be a next generation base station (gNB), in the LTE system, the base station 101 may be an evolved Node B (eNB), and the terminal 102 may be a smart phone, a computer, a multimedia player, an e-reader, a wearable device, or the like. A connection may be established between base station 101 and terminal 102 via a wireless network, and base station 101 may transmit system information to terminal 102.

System information may be transmitted by the MIB and SIBs. SIBs include SIB1, which is a carrier of basic system information, and other SIBs, which are carriers of other system information. In the embodiment of the present invention, the definition of the basic system information and other system information may refer to the definition of the current standard conference.

For example, in a RAN2#95 conference in 8 months of 2016, system information in a 5G system can be divided into basic system information and a plurality of other system information, wherein the basic system information and the other system information are respectively defined as:

"Minimum SI": content with at least one client information to support cell selection, for acquiring other SI, for accessing the cell. (Chinese: basic system information needs to be broadcast periodically. the content of basic system information at least includes information supporting cell selection, information for acquiring other systems and information for accessing cells.)

"Other SI": other SI comprises of the abortive branched in minium SI. (Chinese: other System information includes everything except information passed by the underlying System information.)

Referring to fig. 1-2, fig. 1-2 shows a conventional transmission method of system information, wherein SIBs and MIB have a fixed transmission period, and scheduling information of other SIBs is usually carried in SIB1 for broadcast, fig. 1-2 shows SIB1 and MIB for schematic illustration, as shown in fig. 1-2, SIB1 is periodically transmitted at t1, and MIB is periodically transmitted at t 2.

In order to solve the above technical problem, an embodiment of the present invention provides a method for acquiring system information, where the method may relate to information in a random access process of an LTE system and a derivative system thereof, and the random access process may also be referred to as a 4-step random access process, where the 4-step random access process includes: (1) the terminal sends a lead code (English) to the base station, the lead code is mainly used for initiating random access in an uplink and carrying out uplink information synchronization, and the lead code is called information 1 (English: message 1; MSG1 for short); (2) the base station sends a Random Access Response (RAR) to the terminal, the RAR is mainly used for informing uplink synchronous time deviation in downlink information and configuring resources used in the subsequent connection establishment process, and the RAR is called information 2 (message 2; MSG 2); (3) the terminal sends a connection establishment request to the base station, wherein the connection establishment request carries information such as a connection establishment reason, an Identity (ID) of the terminal and the like, and is called information 3 (message 3; MSG 3); (4) the base station sends contention resolution (MSG 4) information to the terminal, the primary function of which is to perform contention resolution, and the connection establishment request response is referred to as information 4 (MSG 4).

As shown in fig. 2-1, the method for acquiring system information according to the embodiment of the present invention includes:

step 201, the terminal sends a system information request to the base station, wherein the system information request is used for indicating the attribute information of the system information requested by the terminal in an explicit or implicit mode.

Optionally, the terminal may send a system information request to the base station through a physical random access resource, for example, the system information request may be carried by the MSG 1.

The attribute information is used to reflect the attribute of the system information, and may be a classification identifier of the system information or a characteristic identifier of the system information. The classification identifier is used for indicating the category of the system information, and the characteristic identifier is used for indicating the characteristic of the system information.

The system information may be classified into different categories according to different contents of the system information and the urgency of the terminal to acquire the system information, and the system information of different categories may be represented by different classification identifiers, for example, the system information may be classified according to the classification: the classification of the system information related to cell selection and reselection is 1, that is, the system information is SI 1; the radio channel configuration information, the classification identification of which is 2, i.e. the system information is SI 2; the classification of the broadcast multicast service related system information is 3, that is, the system information is SI 3; the terminal directly connects to the service system information, and the classification thereof is 4, that is, the system information is SI4, etc. It should be noted that the foregoing classification manner is only an exemplary description, and the classification of the actual system information and the form of the corresponding classification identifier may be predetermined by the base station and the terminal, for example, the system information may be classified into the system information of the cell reselection class according to the classification, the classification identifier of which is 00, the system information related to the broadcast multicast service, the classification identifier of which is 01, and the system information related to the car networking, the classification identifier of which is 10.

The system information may also be differentiated according to characteristics to be divided into system information with different characteristics, and the system information with different characteristics may be represented by different characteristic identifiers, for example, the system information may be divided into: the connection state related system information has a characteristic mark of 00; accessing related system information, wherein the characteristic mark is 01; idle state related system information, whose characteristic is identified as 10, etc.

The system information request may indicate the attribute information of the system information in an explicit or implicit manner, where the system information request indicates the attribute information of the system information in an explicit manner, where the system information request explicitly indicates the attribute information through an identifier or indication information, for example, the system information request may carry an identifier of the attribute information. For example, the identifier of the attribute information of the system information that the terminal wants to request is: 2, the identifier carried by the corresponding system information request is 2. The system information request indicates the attribute information of the system information in an implicit manner, which means that the system information request indirectly indicates the attribute information of the system information requested by the terminal through a specific Physical Random Access Channel (PRACH). That is, different PRACH resources correspond to different attribute information or different groups of attribute information (each group of attribute information includes at least two kinds of attribute information), and when a terminal wants to provide one kind of attribute information, the terminal adopts corresponding PRACH resource planning. For example, if the identifier of the attribute information corresponding to the PRACH resource 1 is 1 and the identifier of the attribute information corresponding to the PRACH resource 2 is 2, the terminal sends a system information request using the PRACH resource 2, that is, the identifier of the attribute information indicating that the terminal wants to request the system information is 2.

Step 202, the base station receives a system information request sent by the terminal.

Optionally, the base station may receive a system information request sent by the terminal through the physical random access resource. For example, the system request information is carried in the above-described MSG 1.

Step 203, the base station generates a system information request response according to the system information request sent by the terminal, wherein the system information request response includes transmission mode information, and the transmission mode information is used for providing a transmission mode of the system information.

In the embodiment of the present invention, the transmission mode includes a unicast mode or a broadcast mode. Optionally, as shown in fig. 2-2, the process of generating, by the base station, a system information request response according to the system information request sent by the terminal may include:

step 2031, the base station counts the total number of system information requests carrying the same attribute information received within a preset time period. Step 2032 or step 2033 is performed.

In the embodiment of the present invention, the preset duration is preset by the base station according to a specific implementation scenario, for example, a plurality of subframes.

The base station counts the total number of the received system information requests carrying the same attribute information within a preset time length, and can correspondingly process the system information requests carrying the same attribute information according to the comparison result of the total number and a preset number threshold. Referring to step 201, when the system information request indicates the attribute information of the system information in an explicit manner, the base station may count the number of the same identifiers or indication information to determine the total number of the system information requests carrying the same attribute information; when the system information request indicates the attribute information of the system information in an implicit manner, for example, different PRACH resources correspond to different attribute information, the base station may count the total number of system information requests transmitted by each PRACH resource, and each channel corresponds to a system information request of attribute information.

Assuming that the preset duration is the duration of 5 subframes, the base station counts the total number of the system information requests carrying the same attribute information received in the 5 subframes, for example, the base station receives 5 system information requests carrying the identifier 00 of the attribute information and 22 system information requests carrying the identifier 01 of the attribute information in the preset duration.

Step 2032, when the total number of the system information requests carrying the same attribute information is greater than the preset number threshold, the base station generates a system information request response, and the transmission mode represented by the transmission mode information in the system information request response is a broadcast mode.

It should be noted that the preset number threshold may be preset by the base station according to its own transmission capability and transmission scenario, for example, the preset number threshold is 20. Taking the example in step 2031 as an example, if the system information request carrying the identifier 01 of the attribute information is 22, and if the system information request carrying the identifier 01 of the attribute information is greater than 20, the transmission method represented by the transmission method information in the system information request response to the system information request carrying the identifier 01 of the attribute information is the broadcast method.

In the embodiment of the present invention, the transmission mode information may represent a broadcast mode in a plurality of ways, for example, when the transmission mode information includes resource indication information or an identifier indicating that the transmission mode of the system information is a broadcast mode, the transmission mode information represents that the transmission mode of the system information is a broadcast mode; the resource indication information is used to indicate transmission resources occupied by system information in a broadcast manner, and it should be noted that the resource indicated by the resource indication information may be a part of resources or all of resources, as long as it is ensured that the terminal can effectively determine the resources occupied by information transmission according to the resource indication information to effectively acquire the information.

Step 2033, when the total number of the system information requests carrying the same attribute information is not greater than the preset number threshold, the base station generates a system information request response, and the transmission mode indicated by the transmission mode information in the system information request response is a unicast mode.

Taking the example in step 2031 as an example, if the system information request carrying the identifier 00 of attribute information is 5, and if it is smaller than 20, the transmission method represented by the transmission method information in the system information request response to the system information request carrying the identifier 00 of attribute information is unicast.

In the embodiment of the present invention, the transmission method information may represent a unicast method in a plurality of ways, and when the transmission method information includes an indication identifier indicating that the terminal sends the required system information or an identifier indicating that the transmission method of the system information is the unicast method, the transmission method information represents that the transmission method of the system information is the unicast method.

The indication mark for the terminal to send the required system information is used for indicating that the terminal can make a re-request of the system information required by the terminal.

As can be seen from

steps

2032 and 2033, in the embodiment of the present invention, when the total number of the system information requests carrying the same attribute information is large, the base station indicates the broadcast transmission mode, that is, transmits the system information in the broadcast mode subsequently, and when the total number of the system information requests carrying the same attribute information is small, indicates the unicast transmission mode, that is, transmits the system information in the unicast mode subsequently, and dynamically selects the transmission mode according to the comparison result between the total number of the system information requests and the preset number threshold, so that flexible utilization of transmission resources can be achieved, and compatibility between the unicast mode and the broadcast mode can be achieved.

And step 204, the base station sends a system information request response to the terminal.

Optionally, the base station may send feedback information of the physical random access resource to the terminal, where the feedback information includes a system information request response. The feedback information may be MSG 2.

Step 205, the terminal receives a system information request response sent by the base station.

Optionally, the terminal receives feedback information of the physical random access resource sent by the base station, where the feedback information includes a system information request response. The feedback information may be MSG 2.

And step 206, the terminal acquires the system information sent by the base station according to the transmission mode information.

In this embodiment of the present invention, transmission manners represented by the transmission manner information are different, and the acquiring action performed by the terminal is also different, optionally, as shown in fig. 2 to 3, the process of acquiring, by the terminal, the system information sent by the base station according to the transmission manner information may include:

step 2061, the terminal determines the transmission mode provided by the transmission mode information.

Step

2062 or 2066 is executed.

In the embodiment of the present invention, the transmission mode includes a unicast mode or a broadcast mode. Referring to

steps

2032 and 2033, when the transmission mode information includes an indication flag indicating that the terminal sends the required system information or a flag indicating that the transmission mode of the system information is a unicast mode, the transmission mode information represents that the transmission mode of the system information is a unicast mode; when the transmission mode information comprises resource indication information or an identifier indicating that the transmission mode of the system information is a broadcast mode, the transmission mode information represents that the transmission mode of the system information is the broadcast mode; the resource indication information is used for indicating transmission resources occupied by the system information when the system information is transmitted in a broadcast mode.

Step 2062, when the transmission mode of the transmission mode information representing the system information is a unicast mode, the terminal sends a request for specifying the system information to the base station, and the request for specifying the system information indicates the system information requested by the terminal in an explicit or implicit mode.

The terminal may indicate the system information requested by the terminal in an explicit or implicit manner, and the system information requested by the terminal indicated by the specified system information request in an explicit manner refers to the system information requested by the specified system information request explicitly indicated by the identifier or the indication information, for example, the specified system information request may carry an identifier of the system information that the terminal wants to request. For example, what the terminal wants to request is other system information: SI3, the corresponding assigned system information request carries an identifier of 3. The system information which is requested by the terminal and is indicated by the system information specification request in an implicit mode is the system information which is requested by the terminal and is indirectly indicated by the system information specification request through a specific PRACH resource. That is, different PRACH resources correspond to different system information or different groups of system information (each group of system information includes at least two types of system information), and if the terminal requests corresponding system information, the terminal adopts corresponding PRACH resource planning. For example, PRACH resource 1 corresponds to SI1, and PRACH resource 2 corresponds to SI2, the terminal uses PRACH resource 2 to transmit a specified system information request, i.e. it represents that the terminal wants to request SI 2.

Alternatively, the terminal may send a request for specifying system information to the base station through connection establishment request information or connection establishment recovery or other radio resource control information. For example, the terminal may carry the specified system information request via the MSG3 described above.

Step 2063, the base station receives the request for specifying the system information sent by the terminal.

It should be noted that the base station may receive a specific system information request sent by the terminal through the connection establishment request information or the connection establishment recovery or other radio resource control information. For example, the specified system information request may be carried in MSG3 described above.

Step 2064, the base station sends a request response of the system information to the terminal, and the request response of the system information includes the system information requested by the terminal.

In step 203, the transmission mode information further includes resource indication information, and accordingly, the base station may send a request response of the system information specification to the terminal at the transmission resource after receiving the system information specification request sent by the terminal, so as to transmit the system information required by the terminal to the terminal.

Step 2065, the terminal receives the request response of the system information appointed sent by the base station, and the request response of the system information appointed comprises the system information requested by the terminal.

Step 2066, when the transmission mode of the transmission mode information representing the system information is a broadcast mode, the terminal receives the system information sent by the base station through the broadcast mode.

Optionally, in step 203, the transmission mode information in the system information request response generated by the base station further includes resource indication information, then, in step 2065, the base station sends a specified system information request response to the terminal at the transmission resource, and correspondingly, in step 2066, the terminal receives the system information sent by the base station in a broadcast mode at the transmission resource.

The resource indication information includes at least one of a transmission period, a physical resource block, a modulation coding mode and an effective transmission duration.

Wherein, the transmission period is used to indicate a time length for performing one-time system information transmission, for example, 5 ms; the physical resource block is used for indicating the resource block occupied by the system information in the transmission process; the modulation coding mode is used for indicating the modulation coding mode of the system information, for example, a Turbo coding mode is adopted; the valid transmission duration is used to indicate a duration during which the transmission of the system information is valid, that is, the system information transmitted within the duration is valid, and the system information beyond the duration belongs to invalid system information, for example, the valid transmission duration may be 100 ms.

Further, the resource indication information may further include parameters such as transmission times, which is not limited in the embodiment of the present invention.

In practical applications, the base station sends different system information based on different resource indication information, and correspondingly, the terminal receives different system information in different manners.

For example, when the resource indication information includes a transmission period, the base station performs periodic transmission of the system information according to the transmission period, and the terminal performs periodic reception of the system information according to the transmission period, for example, the terminal wants to request other system information: in SI2, if the transmission period included in the resource indication information is 5ms, the base station transmits SI2 once every 5ms, and correspondingly, the terminal receives SI2 transmitted by the base station once every 5 ms;

when the resource indication information includes the transmission times, the number of times that the base station transmits the system information is equal to the transmission times, and the number of times that the terminal receives the system information is less than or equal to the transmission times, generally, the terminal repeatedly performs the action of receiving the system information until the system information is successfully received, and stops receiving the system information, or after the reception times are equal to the transmission times, stops receiving the system information, for example, the terminal wants to request other system information: SI4, if the number of transmissions included in the resource indication information is 2, the base station transmits SI4 twice, and the terminal repeatedly performs the action of receiving SI4 until it successfully receives SI4, or after performing the action of receiving SI4 for the 2 nd time, the terminal stops the receiving action even if it does not successfully receive SI3, because the base station has no longer performed the transmission of SI 4;

when the resource indication information includes a modulation coding mode, the base station performs modulation coding of the system information by using the modulation coding mode when transmitting the system information, and the terminal performs decoding demodulation of the system information by using a decoding demodulation mode corresponding to the modulation coding mode, for example, what the terminal wants to request is basic system information: in SI1, if the coding mode included in the resource indication information is a Turbo coding mode, the terminal adopts a decoding mode corresponding to the Turbo coding mode to decode SI 1;

when the resource indication information comprises resources used for transmission, the base station transmits system information on the resources, and the terminal receives the system information on the resources;

when the resource indication information comprises a transmission effective duration, the base station transmits the system information in the transmission effective duration, and after receiving a system information request response, the terminal can repeatedly execute the action of receiving the system information until the system information is successfully received and stops receiving the system information, or the receiving duration reaches the effective transmission duration and stops receiving the system information; the receiving duration is a duration for starting to execute a receiving action from a receiving time of the system information request response, for example, the terminal wants to request other system information: in SI3, if the effective transmission duration included in the resource indication information is 10ms, the base station performs transmission of SI3 within the 10ms, and the terminal performs reception of the system information within the 10ms until the system information is successfully received and stops the receiving operation, or stops the receiving operation until the receiving duration exceeds 10 ms.

It should be noted that, the above example is only described by taking one parameter in the resource indication information as an example, and in practical applications, since the resource indication information includes at least one of a transmission period, a physical resource block, a modulation coding scheme, an effective transmission duration, and the like, the execution modes need to be appropriately combined according to specific contents in the resource indication information.

For example, the resource indication information includes: when the transmission duration and the transmission period are valid, the base station can repeatedly execute the sending action of the system information according to the transmission period after sending the system information request response until the valid transmission duration is reached, and the sending of the system information is stopped. The effective transmission duration may be timed from the time when the base station sends the system information request response. Correspondingly, after receiving the system information request response, the terminal may repeatedly execute the action of receiving the system information according to the transmission cycle until the system information is successfully received, and stop receiving the system information, or stop receiving the system information when the receiving duration reaches the effective transmission duration; the receiving duration is the duration of executing the receiving action from the receiving moment of the system information request response.

For example, assuming that the effective transmission duration is 10ms, the transmission period is 5ms, and the number of transmissions is 2, the base station needs to transmit the system information 2 times at a time interval of 5ms in 10 ms. The terminal needs to repeatedly execute the action of receiving the system information at the time interval of 5ms within 10ms until the system information is successfully received, and the system information is stopped receiving, or the receiving time reaches 10ms, the system information is stopped receiving, or the receiving frequency exceeds 2 times, and the system information is stopped receiving.

Optionally, the terminal may send feedback information indicating successful reception of the system information to the base station after successfully receiving the system information. The base station can periodically send the system information, namely the system information can be sent for many times, and the terminal does not need to execute the system information receiving action after successfully receiving the system information, so that the terminal can have the condition that the system information is successfully received when the system information receiving action is executed for the first time, the feedback information plays a corresponding prompting role and can prompt the base station terminal to successfully receive the systematicness, and therefore, the base station can stop sending the corresponding system information after receiving the feedback information, and the base station does not need to execute the system information sending action until the next system information request is received no matter whether the transmission times or the effective transmission duration of the system information meet the requirements of transmission parameters, and therefore, the resource waste can be effectively avoided.

It should be noted that, the order of the steps of the method for acquiring system information provided in the embodiment of the present invention may be appropriately adjusted, and the steps may also be increased or decreased according to the circumstances, and any method that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included in the protection scope of the present invention, and therefore, no further description is given.

In summary, in the method for acquiring system information provided in the embodiments of the present invention, since the base station can send a system information request response carrying transmission mode information according to the system information request of the terminal, the terminal can acquire the system information according to the transmission mode information, and the system information is specifically acquired by the terminal according to its own requirement and is not transmitted periodically, compared with the prior art, redundant sending of unnecessary information is avoided, and waste of communication resources is reduced. And because the transmission mode information can indicate both a unicast mode and a broadcast mode, the base station can dynamically select the transmission mode according to the comparison result of the total number of the system information requests and the preset number threshold, thereby realizing the flexible utilization of transmission resources and achieving the compatibility of the unicast mode and the broadcast mode.

An embodiment of the present invention provides an apparatus 30 for acquiring system information, as shown in fig. 3-1, including:

a receiving module 301, configured to receive a system information request response sent by a base station, where the system information request response includes transmission mode information, and the transmission mode information is used to provide a transmission mode of the system information, where the transmission mode includes a unicast mode or a broadcast mode;

an obtaining module 302, configured to obtain the system information sent by the base station according to the transmission mode information.

According to the system information acquisition device provided by the embodiment of the invention, the base station can send the system information request response carrying the transmission mode information according to the system information request of the terminal, the acquisition module can acquire the system information according to the transmission mode information acquired by the receiving module, and the system information is acquired by the terminal in a targeted manner according to the self requirement and is not transmitted periodically, so that compared with the prior art, redundant sending of unnecessary information is avoided, and waste of communication resources is reduced.

Optionally, as shown in fig. 3-2, the apparatus further includes:

a sending module 303, configured to send a system information request to a base station before the terminal receives a system information request response sent by the base station, where the system information request is used to indicate, in an explicit or implicit manner, attribute information of system information requested by the terminal.

Optionally, as shown in fig. 3-3, the obtaining module 302 includes:

a sending submodule 3021, configured to send a system information specifying request to the base station when the transmission mode information indicates that the transmission mode of the system information is a unicast mode, where the system information specifying request indicates, in an explicit or implicit mode, the system information requested by the terminal;

a receiving submodule 3022, configured to receive a specified system information request response sent by the base station, where the specified system information request response includes system information requested by the terminal.

Optionally, the obtaining module 302 is specifically configured to:

the obtaining module 302 is specifically configured to: and receiving the system information sent by the base station in a broadcasting mode on the transmission resource.

Optionally, the receiving module 301 is specifically configured to:

Optionally, the sending module 303 is specifically configured to:

The sending submodule 3021 is specifically configured to:

An embodiment of the present invention provides an apparatus 40 for acquiring system information, as shown in fig. 4-1, including:

a generating module 401, configured to generate a system information request response according to a system information request sent by a terminal, where the system information request response includes transmission mode information, the transmission mode information is used to provide a transmission mode of the system information, and the transmission mode includes a unicast mode or a broadcast mode;

a first sending module 402, configured to send the system information request response to the terminal.

According to the system information acquisition device provided by the embodiment of the invention, the first sending module can send the system information request response carrying the transmission mode information generated by the generating module according to the system information request of the terminal, the terminal can acquire the system information according to the transmission mode information, and the system information is pertinently acquired by the terminal according to the self requirement and is not periodically transmitted, so that compared with the prior art, redundant sending of unnecessary information is avoided, and waste of communication resources is reduced.

Optionally, as shown in fig. 4-2, the apparatus 40 further includes:

a first receiving module 403, configured to receive a system information request sent by a terminal before the base station generates a system information request response according to the system information request sent by the terminal, where the system information request is used to indicate attribute information of system information requested by the terminal in an explicit or implicit manner.

Optionally, the generating module 401 is specifically configured to:

Optionally, as shown in fig. 4-3, the apparatus 40 further includes:

a second receiving module 404, configured to receive, after the base station sends the system information request response to the terminal, a specified system information request sent by the terminal, where the specified system information request indicates, in an explicit or implicit manner, system information requested by the terminal, and the specified system information request is generated by the terminal when a transmission manner indicated by transmission manner information in the received system information request response is a unicast manner;

a second sending module 405, configured to send a request response of specifying system information to the terminal, where the request response of specifying system information includes the system information requested by the terminal.

Optionally, as shown in fig. 4-4, the transmission mode information includes the resource indication information, and the apparatus 40 further includes:

a third sending module 406, configured to send a specified system information request response to the terminal at the transmission resource after the base station sends the system information request response to the terminal.

Optionally, the first sending module 402 is specifically configured to:

Optionally, the first receiving module 403 is specifically configured to:

Optionally, the second receiving module 404 is specifically configured to:

The embodiment of the invention provides a system for acquiring system information, which comprises:

the embodiment of the invention provides a system for acquiring system information, which comprises: a terminal and a base station,

the terminal may include the system information acquisition means 30 shown in fig. 3-1 or 3-2 described above;

the base station may comprise the system information acquiring means 40 shown in any of fig. 4-1 to 4-4.

Referring to fig. 5, a schematic structural diagram of an apparatus 50 for acquiring system information according to an exemplary embodiment of the present invention is shown. The system information acquiring apparatus 50 may be the terminal 40 or the base station 50, and the system information acquiring apparatus 50 includes: a processor 52 and a network interface 54.

Processor 52 includes one or more processing cores. The processor 52 executes various functional applications and data processing by executing software programs and modules.

The network interface 54 may be plural, and the network interface 54 is used for communication with other storage devices or network devices.

Optionally, the apparatus 50 for acquiring system information further includes a memory 56, a bus 58, and the like. Wherein, the memory 56 and the network interface 54 are respectively connected with the processor 52 through a bus 58.

The memory 56 may be used to store software programs and modules. In particular, the memory 56 may store an operating system 562, and an application module 564 for at least one function. Operating system 562 may be a Real Time eXceptive (RTX) operating system, such as LINUX, UNIX, WINDOWS, or OS X.

In some embodiments, when the apparatus 50 for acquiring system information is the base station 40, the network interface 54 may be a transceiver antenna (which may also be regarded as a transmitter and a receiver), and the application module 564 stored in the memory 56 may perform the

steps

202, 203, 204;

when the system information acquiring apparatus 50 is the terminal 30, the network interface 54 may be a transceiver antenna (also referred to as a transmitter and a receiver), and the application module 564 stored in the memory 56 may perform the

steps

201, 205, 206, and the like.

It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the module described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A method for acquiring system information is characterized by comprising the following steps:

a terminal sends a system information request to a base station, wherein the system information request is used for indicating attribute information of system information requested by the terminal in an explicit or implicit mode; the attribute information is a classification identifier of the system information or a characteristic identifier of the system information; the classification identifier is used for indicating the category of the system information, and the characteristic identifier is used for indicating the characteristic of the system information; the type of the system information is used for indicating the emergency degree of the terminal for acquiring the system information;

the terminal receives a system information request response sent by the base station, wherein the system information request response comprises transmission mode information, the transmission mode information is used for providing a transmission mode of the system information, and the transmission mode comprises a unicast mode or a broadcast mode; the system information request response is generated by the base station counting the total number of the received system information requests carrying the same attribute information in the expected duration, comparing the total number of the system information requests carrying the same attribute information with a preset number threshold and according to the comparison result; the preset number threshold is preset by the base station according to the self transmission capability and the transmission scene; when the total number of the system information requests carrying the same attribute information is greater than the preset number threshold, the transmission mode indicated by the transmission mode information in the system information request response is a broadcast mode; when the total number of the system information requests carrying the same attribute information is not greater than the preset number threshold, the transmission mode indicated by the transmission mode information in the system information request response is a unicast mode;

2. The method of claim 1,

the terminal acquires the system information sent by the base station according to the transmission mode information, and the method comprises the following steps:

3. The method according to claim 2, wherein when the transmission method information includes an indication flag indicating that the system information required for the terminal to transmit or a flag indicating that the transmission method of the system information is a unicast method, the transmission method information represents that the transmission method of the system information is a unicast method.

4. The method of claim 1, wherein the acquiring, by the terminal, the system information sent by the base station according to the transmission mode information comprises:

5. The method according to claim 4, wherein when the transmission mode information includes resource indication information or an identifier indicating that a transmission mode of system information is a broadcast mode, the transmission mode information represents that the transmission mode of the system information is a broadcast mode;

6. The method of claim 5, wherein the transmission mode information comprises the resource indication information,

7. The method of claim 5,

8. The method according to any one of claims 1 to 7,

the terminal receiving the system information request response sent by the base station comprises the following steps:

9. The method according to any one of claims 1 to 7,

the terminal sends a system information request to the base station, and the system information request comprises the following steps:

10. The method according to claim 2 or 3,

the terminal sends a request for specifying system information to the base station, and the request comprises the following steps:

11. A method for acquiring system information is characterized by comprising the following steps:

a base station receives a system information request sent by a terminal, wherein the system information request is used for indicating attribute information of system information requested by the terminal in an explicit or implicit mode; the attribute information is a classification identifier of the system information or a characteristic identifier of the system information; the classification identifier is used for indicating the category of the system information, and the characteristic identifier is used for indicating the characteristic of the system information; the type of the system information is used for indicating the emergency degree of the terminal for acquiring the system information;

the base station generates a system information request response according to the system information request sent by the terminal, wherein the system information request response comprises transmission mode information, the transmission mode information is used for providing a transmission mode of the system information, and the transmission mode comprises a unicast mode or a broadcast mode;

the base station sends the system information request response to the terminal;

the base station generates a system information request response according to the system information request sent by the terminal, and the method comprises the following steps:

comparing the total number of system information requests carrying the same attribute information with a preset number threshold; the preset number threshold is preset by the base station according to the self transmission capability and the transmission scene;

when the total number of the system information requests carrying the same attribute information is larger than the preset number threshold, the base station generates a system information request response, wherein the transmission mode indicated by the transmission mode information in the system information request response is a broadcast mode;

12. The method of claim 11, wherein after the base station sends the system information request response to the terminal, the method further comprises:

13. The method according to claim 11, wherein when the transmission mode information includes an indication flag indicating that the terminal transmits the required system information or a flag indicating that the transmission mode of the system information is a unicast mode, the transmission mode information represents that the transmission mode of the system information is a unicast mode;

14. The method of claim 13, wherein the transmission mode information comprises the resource indication information, and after the base station sends the system information request response to the terminal, the method further comprises:

15. The method of claim 13, wherein the resource indication information comprises at least one of a transmission period, a physical resource block, a modulation and coding scheme, and an effective transmission duration.

16. The method according to any one of claims 11 to 15,

the base station sends the system information request response to the terminal, and the system information request response comprises the following steps:

17. The method according to any one of claims 11 to 15,

the base station receives a system information request sent by a terminal, and the system information request comprises the following steps:

18. The method of claim 12,

the base station receives a specified system information request sent by the terminal, and the method comprises the following steps:

19. An apparatus for acquiring system information, comprising:

a sending module, configured to send a system information request to a base station by a terminal, where the system information request is used to indicate attribute information of system information requested by the terminal in an explicit or implicit manner; the attribute information is a classification identifier of the system information or a characteristic identifier of the system information; the classification identifier is used for indicating the category of the system information, and the characteristic identifier is used for indicating the characteristic of the system information; the type of the system information is used for indicating the emergency degree of the terminal for acquiring the system information;

a receiving module, configured to receive a system information request response sent by the base station, where the system information request response includes transmission mode information, the transmission mode information is used to provide a transmission mode of the system information, and the transmission mode includes a unicast mode or a broadcast mode; the system information request response is generated by the base station counting the total number of the received system information requests carrying the same attribute information in the expected duration, comparing the total number of the system information requests carrying the same attribute information with a preset number threshold and according to the comparison result; the preset number threshold is preset by the base station according to the self transmission capability and the transmission scene; when the total number of the system information requests carrying the same attribute information is greater than the preset number threshold, the transmission mode indicated by the transmission mode information in the system information request response is a broadcast mode; when the total number of the system information requests carrying the same attribute information is not greater than the preset number threshold, the transmission mode indicated by the transmission mode information in the system information request response is a unicast mode;

20. The apparatus of claim 19,

the acquisition module includes:

21. The apparatus according to claim 20, wherein when the transmission scheme information includes an indication flag indicating that the system information required for the terminal to transmit is transmitted or an indication that the transmission scheme of the system information is a unicast scheme, the transmission scheme information indicates that the transmission scheme of the system information is a unicast scheme.

22. The apparatus of claim 19, wherein the obtaining module is specifically configured to:

23. The apparatus of claim 22, wherein when the transmission mode information includes resource indication information or an identifier indicating that a transmission mode of system information is a broadcast mode, the transmission mode information represents that the transmission mode of the system information is a broadcast mode;

24. The apparatus of claim 23, wherein the transmission mode information comprises the resource indication information,

25. The apparatus of claim 23,

26. The apparatus of any one of claims 19 to 25,

the receiving module is specifically configured to:

27. The apparatus of any one of claims 19 to 25,

the sending module is specifically configured to:

28. The apparatus of claim 20 or 21,

the sending submodule is specifically configured to:

29. An apparatus for acquiring system information, comprising:

a first receiving module, configured to receive, by a base station, a system information request sent by a terminal, where the system information request is used to indicate, in an explicit or implicit manner, attribute information of system information requested by the terminal; the attribute information is a classification identifier of the system information or a characteristic identifier of the system information; the classification identifier is used for indicating the category of the system information, and the characteristic identifier is used for indicating the characteristic of the system information; the type of the system information is used for indicating the emergency degree of the terminal for acquiring the system information;

a generating module, configured to generate a system information request response according to the system information request sent by the terminal, where the system information request response includes transmission mode information, and the transmission mode information is used to provide a transmission mode of the system information, where the transmission mode includes a unicast mode or a broadcast mode;

a first sending module, configured to send the system information request response to the terminal;

the generation module is specifically configured to:

when the total number of the system information requests carrying the same attribute information is larger than the preset number threshold, generating a system information request response, wherein the transmission mode indicated by the transmission mode information in the system information request response is a broadcast mode;

30. The apparatus of claim 29, further comprising:

31. The apparatus according to claim 29, wherein when the transmission method information includes an indication flag indicating that the terminal transmits the required system information or a flag indicating that the transmission method of the system information is a unicast method, the transmission method information represents that the transmission method of the system information is a unicast method;

32. The apparatus of claim 31, wherein the transmission mode information comprises the resource indication information, and wherein the apparatus further comprises:

33. The apparatus of claim 31, wherein the resource indication information comprises at least one of a transmission period, a physical resource block, a modulation and coding scheme, and an effective transmission duration.

34. The apparatus of any one of claims 29 to 33,

the first sending module is specifically configured to:

35. The apparatus of any one of claims 29 to 33,

the first receiving module is specifically configured to:

36. The apparatus of claim 30,

the second receiving module is specifically configured to:

37. A system information acquisition system, comprising:

a terminal and a base station, wherein the terminal comprises the system information acquisition device of any one of claims 19 to 28;

the base station comprises the system information acquisition device of any one of claims 29 to 36.