CN106992953B

CN106992953B - System information acquisition method and device

Info

Publication number: CN106992953B
Application number: CN201710169718.7A
Authority: CN
Inventors: 洪伟
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2017-03-21
Filing date: 2017-03-21
Publication date: 2020-12-18
Anticipated expiration: 2037-03-21
Also published as: CN106992953A

Abstract

The disclosure relates to a system information acquisition method and device. The method is applied to the terminal and comprises the following steps: randomly selecting a target Other SI preamble from Other system information Other SI preamble groups; wherein, the Other SI preamble group includes at least one Other SI preamble, and is used for the terminal to request to acquire the Other SI; sending an indication message to a base station by using a preset resource; wherein, the indication message comprises the target Other SI preamble and the Other SI identifier; receiving a response message returned by the base station in response to the indication message; wherein, the response message includes Other SI corresponding to the Other SI identifier. The technical scheme can realize that the terminal efficiently requests other required system information from the base station as required, and improve the utilization rate of system resources.

Description

System information acquisition method and device

Technical Field

The present disclosure relates to the field of mobile communications technologies, and in particular, to a method and an apparatus for acquiring system information.

Background

In the last 30 years, mobile communication has undergone a leap-type development from voice service to mobile bandwidth data service, which not only profoundly changes people's life style, but also greatly promotes social and economic development. The mobile internet and the internet of things serve as two main driving forces for future mobile communication development, and a wide application scene is provided for 5G. For 2020 and the future, the data flow is increased by thousands of times, and the service requirements of billions of equipment connection and diversification all present serious challenges to the design of a fifth generation mobile communication network (5G) system; the 5G can meet the requirements of people on ultrahigh flow density, ultrahigh connection number density and ultrahigh mobility, and can provide extreme business experiences of high-definition videos, virtual reality, augmented reality, cloud desktops, online games and the like for users; 5G can permeate into the fields of Internet of things and the like, is deeply fused with industrial facilities, medical instruments, vehicles and the like, comprehensively realizes the interconnection of everything, and effectively meets the information service requirements of vertical industries such as industry, medical treatment, traffic and the like; the 5G can also greatly improve the energy consumption and the cost efficiency of network construction and operation, comprehensively improve the service innovation capability and expand the industrial space of mobile communication.

As one of standardization bodies of wireless communication technology, the third Generation Partnership Project (3 GPP), which has completed the projects of 5G scenario, 5G requirement, 5G network architecture, 5G radio access technology, etc., starts to discuss specific system design problems; the frequency range defined by 3GPP can reach 100GHz at most; facing a high-frequency network, a base station (eNB) and User Equipment (UE) can transmit in a beam forming mode to meet the channel quality requirement required by high-frequency data transmission; however, one problem with transmitting using beamforming is how to provide system information.

In the related art, system information in an LTE network is transmitted by an eNB in an omni-directional broadcast manner.

Disclosure of Invention

In order to overcome the problems in the related art, embodiments of the present disclosure provide a method and an apparatus for acquiring system information. The technical scheme is as follows:

according to a first aspect of the embodiments of the present disclosure, a method for acquiring system information is provided, which is applied to a terminal, and includes:

randomly selecting a target Other SI preamble from Other system information Other SI preamble groups; wherein, the Other SI preamble group includes at least one Other SI preamble, and is used for the terminal to request to acquire the Other SI;

sending an indication message to a base station by using a preset resource; wherein, the indication message comprises the target Other SI preamble and the Other SI identifier;

receiving a response message returned by the base station in response to the indication message; wherein, the response message includes Other SI corresponding to the Other SI identifier.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: the technical scheme is that a special preamble group specially used for requesting other system information is appointed for a terminal, the terminal uses the special preamble to request other system information from a base station as required, the terminal can efficiently request other required system information from the base station as required, and the occupation of signaling resources is reduced, so that the problems of network signaling load, low resource utilization rate and the like caused by the fact that the system information is transmitted through multiple times of beam forming in the related technology can be solved, and the utilization rate of the system resources can be improved.

In one embodiment, before randomly selecting the target Other SI preamble from the Other SI preamble group, the method further comprises:

receiving Minimum system information Minimum SI sent by the base station through broadcasting; wherein the Minimum SI comprises the Other SI preamble group;

and analyzing the Minimum SI to obtain the Other SI preamble group.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: the technical scheme allocates an Other SI preamble group specially used for the terminal to request the Other SI for the terminal in advance through the base station, and carries the Other SI preamble group in the Minimum SI transmitted by the base station through broadcasting, so that the terminal can acquire the Other SI preamble group allocated for the terminal in advance, the terminal can conveniently request Other required system information from the base station as required, and the system signaling load is reduced.

In one embodiment, the indication message further includes a terminal identifier.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: according to the technical scheme, the indication message sent to the base station by the terminal by using the preset resources comprises the target Other SI lead code and the Other SI identification, and also comprises the terminal identification, so that the base station can send the response message to the terminal in a unicast mode according to the terminal identification, and the consumption of signaling resources is saved.

According to a second aspect of the embodiments of the present disclosure, there is provided a system information acquisition method applied to a base station, including:

detecting an indication message sent by a terminal by using a preset resource; wherein, the indication message comprises a target Other system information Other SI lead code and Other SI identification; the target Other SI lead code is used for indicating that the terminal requests to acquire an Other SI corresponding to the Other SI mark;

responding to the indication message, and sending a response message to the terminal; wherein, the response message includes Other SI corresponding to the Other SI identifier.

In one embodiment, before detecting the indication message sent by the terminal using the preset resource, the method further includes:

transmitting Minimum system information Minimum SI to the terminal through broadcasting; wherein, the Minimum SI comprises an Other SI preamble group; the Other SI preamble group comprises at least one Other SI preamble, and is used for the terminal to request to acquire the Other SI.

In one embodiment, sending a response message to the terminal in response to the indication message includes:

and responding to the indication message, and sending a response message to the terminal through broadcasting.

In one embodiment, the indication message further includes a terminal identifier; the sending a response message to the terminal in response to the indication message comprises:

and sending the response message to the terminal through unicast according to the terminal identification.

judging whether the number of the indication messages carrying the Other SI identification exceeds a preset value;

when the number of the indication messages carrying the Other SI identification exceeds the preset value, the response message is sent to the terminal through broadcasting; or,

and when the number of the indication messages carrying the Other SI identifiers does not exceed the preset value, sending the response message to the terminal through unicast according to the terminal identifier.

According to a third aspect of the embodiments of the present disclosure, there is provided a system information acquisition apparatus including:

a selecting module, configured to randomly select a target Other SI preamble from the Other system information Other SI preamble group; wherein, the Other SI preamble group includes at least one Other SI preamble, and is used for the terminal to request to acquire the Other SI;

the first sending module is used for sending an indication message to the base station by using a preset resource; wherein, the indication message comprises the target Other SI preamble and the Other SI identifier;

a first receiving module, configured to receive a response message returned by the base station in response to the indication message; wherein, the response message includes Other SI corresponding to the Other SI identifier.

In one embodiment, the apparatus further comprises:

a second receiving module, configured to receive Minimum system information Minimum SI sent by the base station through broadcasting; wherein the Minimum SI comprises the Other SI preamble group;

and the acquisition module is used for analyzing the Minimum SI to acquire the Other SI preamble group.

According to a fourth aspect of the embodiments of the present disclosure, there is provided a system information acquisition apparatus including:

the detection module is used for detecting an indication message sent by the terminal by using a preset resource; wherein, the indication message comprises a target Other system information Other SI lead code and Other SI identification; the target Other SI lead code is used for indicating that the terminal requests to acquire an Other SI corresponding to the Other SI mark;

a second sending module, configured to send a response message to the terminal in response to the indication message; wherein, the response message includes Other SI corresponding to the Other SI identifier.

In one embodiment, the apparatus further comprises:

a third sending module, configured to send Minimum system information Minimum SI to the terminal through broadcasting; wherein, the Minimum SI comprises an Other SI preamble group; the Other SI preamble group comprises at least one Other SI preamble, and is used for the terminal to request to acquire the Other SI.

In one embodiment, the second sending module sends a response message to the terminal by broadcasting in response to the indication message.

In one embodiment, the indication message further includes a terminal identifier; and the second sending module sends the response message to the terminal through unicast according to the terminal identification.

In one embodiment, the indication message further includes a terminal identifier; the second sending module judges whether the number of the indication messages carrying the Other SI identification exceeds a preset value; when the number of the indication messages carrying the Other SI identification exceeds the preset value, the response message is sent to the terminal through broadcasting; and when the number of the indication messages carrying the Other SI identifiers does not exceed the preset value, sending the response message to the terminal through unicast according to the terminal identifier.

According to a fifth aspect of the embodiments of the present disclosure, there is provided a system information acquisition apparatus including:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to:

According to a sixth aspect of the embodiments of the present disclosure, there is provided a system information acquisition apparatus including:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to:

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a flowchart illustrating a system information acquisition method according to an example embodiment.

Fig. 2 is a flowchart illustrating a system information acquisition method according to an example embodiment.

Fig. 3 is a flowchart illustrating a system information acquisition method according to an example embodiment.

Fig. 4 is a flowchart illustrating step 302 of a system information acquisition method according to an example embodiment.

Fig. 5 is a flowchart illustrating a system information acquisition method according to an example embodiment.

Fig. 6 is a block diagram illustrating a system information acquisition apparatus according to an example embodiment.

Fig. 7 is a block diagram illustrating a system information acquisition apparatus according to an example embodiment.

Fig. 8 is a block diagram illustrating a system information acquisition apparatus according to an example embodiment.

Fig. 9 is a block diagram illustrating a system information acquisition apparatus according to an example embodiment.

Fig. 10 is a block diagram illustrating a system information acquisition apparatus according to an example embodiment.

Fig. 11 is a block diagram illustrating a system information acquisition apparatus according to an example embodiment.

Fig. 12 is a block diagram illustrating a system information acquisition apparatus according to an example embodiment.

Fig. 13 is a block diagram illustrating a system information acquisition apparatus according to an example embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

In the related art, the system information of the LTE network is transmitted by the eNB in an omni-directional broadcast manner, so that the transmission efficiency is low; moreover, for the case that the 5G network uses beamforming for transmission, the base station cannot adopt the transmission based on omnidirectional broadcast in the LTE network, and can only transmit system information by multiple beamforming, however, this will bring heavy signaling burden to the 5G network, increasing signaling resource load of the 5G network; or the terminal is changed into a connected state to receive the system information sent by the base station, which results in lower resource utilization rate.

In order to solve the above problem, an embodiment of the present disclosure provides a system information obtaining method, including: randomly selecting a target Other SI preamble from an Other system information (Other SI) preamble group; wherein, the Other SI preamble group includes at least one Other SI preamble, and is used for the terminal to request to acquire the Other SI; sending an indication message to a base station by using a preset resource; wherein, the indication message comprises the target Other SI preamble and the Other SI identifier; receiving a response message returned by the base station in response to the indication message; wherein, the response message includes Other SI corresponding to the Other SI identifier. The technical scheme provided by the embodiment of the disclosure is that a special lead code group specially used for requesting other system information is appointed for a terminal, and the terminal uses the special lead code to request other system information to a base station as required, so that the problems of network signaling load, low resource utilization rate and the like caused by transmitting the system information through multiple beamforming in the related technology are avoided; the technical scheme relates to a terminal and a base station, wherein the terminal is a communication device such as a smart phone, a tablet computer, a wearable device or a vehicle-mounted mobile terminal; such as an eNB or a base station in a 5G network.

Fig. 1 is a flowchart illustrating a system information obtaining method according to an exemplary embodiment, where the method may be applied to a terminal, and an execution subject of the method may be the terminal, as shown in fig. 1, where the method includes the following steps 101 and 103:

in step 101, randomly selecting a target Other SI preamble from an Other SI preamble group; the Other SI preamble group includes at least one Other SI preamble, and is used for the terminal to request to acquire the Other SI.

For example, the following types of system information are defined in a 5G network: 1) minimum number of system information (Minimum SI): the method comprises the steps of obtaining related information of Other SI and using for initial access; the Minimum SI needs to be broadcast periodically. 2) Other SI: including other system information besides Minimum SI.

For example, the Other SI preamble group may be a procedure that is pre-agreed by the base station and the terminal and is dedicated to the terminal requesting the Other SI. The Other SI preamble group can also be transmitted by the base station through broadcasting the Minimum SI, wherein the Minimum SI comprises the Other SI preamble group; and the terminal receives the Minimum SI sent by the base station through broadcasting, and analyzes the Minimum SI to obtain the Other SI preamble group.

In step 102, sending an indication message to a base station by using a preset resource; the indication message includes a target Other SI preamble and an Other SI identifier.

For example, the preset resource may be a time-frequency space resource that is negotiated by the base station and the terminal in advance and used for the UE to request Other SI, or may be a time-frequency space resource that is allocated by the base station to the terminal in advance and used for the UE to request Other SI. For example, the number of Other SI identities included in the indication message may be one, two or more. Different Other SI identities correspond to different Other SIs.

For example, a terminal in a Radio Resource Control IDLE state (RRC _ IDLE) or a Radio Resource Control INACTIVE state (RRC _ INACTIVE) needs to acquire a related Other SI when performing cell selection/reselection, cell access, and Other processes, so that the terminal randomly selects a preamble from an Other SI preamble set as a target Other SI preamble used by the Other SI requested this time, and sends an indication message including the target Other SI preamble and an Other SI identifier to a base station by using preset resources. When the base station detects the indication message sent by the terminal by using the preset resource, the base station can know that the purpose of the indication message sent by the terminal is as follows according to the target Other SI lead code: requesting a base station to send Other SI corresponding to the Other SI identification for a terminal; the base station responds to the indication message and sends a response message to the terminal; wherein, the response message includes Other SI corresponding to the Other SI identifier.

In step 103, receiving a response message returned by the base station in response to the indication message; wherein, the response message includes Other SI corresponding to the Other SI identification.

Illustratively, after receiving a response message including Other SI corresponding to the Other SI identifier, which is returned by the base station in response to the indication message, the terminal obtains the Other SI corresponding to the Other SI identifier by analyzing the response message.

Illustratively, the base station sends a response message to the terminal by broadcasting in response to the indication message, for example, the base station may send the Other SI corresponding to the Other SI identifier by broadcasting; the target Other SI preamble may be included in the broadcast message; when the terminal detects that the broadcast message comprises the target Other SI lead code, the terminal can determine that the broadcast message is sent to the terminal by the base station, and then the terminal acquires the Other SI corresponding to the Other SI identification carried in the broadcast message.

Illustratively, the indication message further includes a terminal identifier. And the terminal sends an indication message carrying the terminal identification, the target Other SI lead code and the Other SI identification to the base station by using preset resources. In this scenario, an implementation manner of the base station sending the response message to the terminal in response to the indication message may include at least:

and in the mode 1, the base station responds to the indication message and sends the response message to the terminal through unicast according to the terminal identification.

Illustratively, the response message carries the terminal identifier; the indication message sent by the terminal to the base station by using the preset resource comprises the target Other SI lead code and the Other SI identification, and also comprises the terminal identification, so that the base station can send a response message to the terminal in a unicast mode according to the terminal identification, and the consumption of signaling resources can be saved.

Mode 2, if the base station receives two or more indication messages carrying the same Other SI identifier sent by different terminals within a preset time period; the base station judges whether the number of the indication messages carrying the Other SI identification exceeds a preset value: when the number of the indication messages carrying the Other SI identification exceeds the preset value, response messages are sent by broadcasting, so that each terminal sending the indication messages receives the response messages; and when the number of the indication messages carrying the Other SI identifier does not exceed the preset value, respectively sending response messages to each terminal sending the indication messages through unicast according to the terminal identifier.

According to the technical scheme provided by the embodiment of the disclosure, the terminal is assigned with the special preamble group specially used for requesting other system information, and the terminal uses the special preamble to request other system information to the base station as required, so that the terminal can efficiently request other required system information from the base station as required, the occupation of signaling resources is reduced, the problems of network signaling load and low resource utilization rate caused by transmitting the system information through multiple beamforming in the related technology can be solved, and the utilization rate of the system resources can be improved.

In a possible implementation manner, as shown in fig. 2, the system information obtaining method according to the present disclosure may further include the following steps 201 and 202:

in step 201, receiving a Minimum SI transmitted by a base station through broadcasting; wherein, the Minimum SI comprises the Other SI preamble group.

Illustratively, the execution sequence of step 201 and step 202 is prior to step 101. Before the terminal randomly selects the target Other SI preamble from the Other SI preamble group, the

step

201 and 202 are executed to obtain the Other SI preamble group allocated by the base station for the terminal and dedicated to request the Other SI.

In step 202, the Minimum SI is parsed to obtain the Other SI preamble set.

In the technical solution provided by the above-mentioned embodiment of the present disclosure, the base station allocates in advance an Other SI preamble group dedicated to the request of the terminal for the Other SI by the terminal, and the Minimum SI sent by the base station by broadcasting carries the Other SI preamble group, so that the terminal can acquire in advance the Other SI preamble group allocated by the base station, thereby facilitating the request of the terminal from the base station for the required Other system information as needed, and reducing the system signaling load.

Fig. 3 is a flowchart illustrating a method for acquiring system information according to an exemplary embodiment, where the method may be applied to a base station, and an execution subject of the method may be the base station, as shown in fig. 3, where the method includes the following steps 301 and 302:

in step 301, an indication message sent by a terminal using a preset resource is detected; the indication message includes a target Other system information Other SI preamble and Other SI identifier.

Illustratively, the target Other SI preamble is used to indicate that the terminal requests to acquire an Other SI corresponding to the Other SI identifier.

For example, a terminal in an idle state or an inactive state needs to acquire a relevant Other SI when performing cell selection/reselection, cell access, and Other processes: the terminal randomly selects a lead code from the Other SI lead code group as a target Other SI lead code used by the request Other SI, and sends an indication message comprising the target Other SI lead code and an Other SI identifier to the base station by using preset resources; the Other SI preamble group includes at least one Other SI preamble, and is used for the terminal to request to acquire the Other SI. When the base station detects the indication message sent by the terminal by using the preset resource, the base station can know that the purpose of the indication message sent by the terminal is as follows according to the target Other SI lead code: requesting the base station to send Other SI corresponding to the Other SI identification for the terminal.

In step 302, responding to the indication message, sending a response message to the terminal; wherein, the response message includes Other SI corresponding to the Other SI identifier.

Illustratively, when detecting an indication message sent by the terminal using the preset resource, the base station responds to the indication message and sends a response message carrying an Other SI corresponding to the Other SI identifier to the terminal.

mode a, the base station responds to the indication message, and sends the response message to the terminal through unicast according to the terminal identification

Mode b, if the base station receives two or more indication messages carrying the same Other SI identifier sent by different terminals within a preset time period; the base station judges whether the number of the indication messages carrying the Other SI identification exceeds a preset value: when the number of the indication messages carrying the Other SI identification exceeds the preset value, response messages are sent by broadcasting, so that each terminal sending the indication messages receives the response messages; and when the number of the indication messages carrying the Other SI identification does not exceed the preset value, respectively sending response messages to each terminal sending the indication messages through unicast according to the terminal identification.

In the technical scheme provided by the embodiment of the disclosure, the terminal uses a special lead code specially used for requesting Other system information to request the base station for Other system information as required, and the base station sends Other SI required by the terminal to the terminal according to the request of the terminal, so that the terminal can efficiently request Other system information required by the base station as required, and the occupation of signaling resources is reduced, thereby overcoming the problems of network signaling load, low resource utilization rate and the like caused by transmitting the system information through multiple beamforming in the related technology, and thus, the utilization rate of the system resources can be improved.

In a possible implementation, the system information acquiring method shown in fig. 3 may further include: before detecting an indication message sent by a terminal by using a preset resource, sending Minimum system information Minimum SI to the terminal through broadcasting; wherein, the Minimum SI comprises an Other SI preamble group; the Other SI preamble group includes at least one Other SI preamble, and is used for the terminal to request to acquire the Other SI.

In one possible implementation, step 302 shown in fig. 3 may be implemented as: and transmitting a response message to the terminal by broadcasting in response to the indication message.

In a possible implementation manner, the indication message further includes a terminal identifier; step 302 shown in fig. 3 may be implemented as: and sending the response message to the terminal through unicast according to the terminal identification.

In the technical solution provided by the embodiment of the present disclosure, the indication message sent to the base station by using the preset resource includes the target Other SI preamble and the Other SI identifier, and also includes the terminal identifier, so that the base station can send the response message to the terminal in a unicast manner according to the terminal identifier, and signaling resource consumption can be saved.

In one possible implementation, as shown in fig. 4, the step 302 shown in fig. 3 can be implemented as steps 401 and 403:

in step 401, the base station determines whether the number of received indication messages carrying the Other SI identifier exceeds a preset value; when the number of the received indication messages carrying the Other SI identifier is judged to exceed a preset value, turning to step 402; and when determining that the number of the received indication messages carrying the Other SI identifier does not exceed the preset value, go to step 403.

Illustratively, the indication message further includes a terminal identifier.

In step 402, when the number of indication messages carrying the Other SI identifier exceeds the preset value, the response message is sent to the terminal by broadcasting.

In step 403, when the number of the indication messages carrying the Other SI identifier does not exceed the preset value, the response message is sent to the terminal through unicast according to the terminal identifier.

The implementation is described in detail below by way of several embodiments.

Fig. 5 is a flow chart illustrating a system information acquisition method implemented by a terminal in cooperation with a base station in accordance with an example embodiment; as shown in fig. 5, the method comprises the steps of:

in step 501, the base station sends Minimum system information Minimum SI to the terminal through broadcasting; wherein, the Minimum SI comprises the Other SI preamble group.

Illustratively, the Other SI preamble set includes at least one Other SI preamble, and is used for the terminal to request to acquire the Other SI.

In step 502, the terminal receives Minimum system information Minimum SI sent by the base station through broadcasting; the terminal analyzes the Minimum SI to obtain the Other SI preamble group.

In step 503, the terminal randomly selects a target Other SI preamble from the Other system information Other SI preamble group.

In step 504, the terminal sends an indication message to the base station using a preset resource; wherein, the indication message includes the target Other SI preamble and the Other SI identifier.

In step 505, the base station detects an indication message sent by the terminal using a preset resource.

In step 506, in response to the indication message, sending a response message to the terminal by broadcasting; wherein, the response message includes Other SI corresponding to the Other SI identifier.

The technical scheme provided by the embodiment of the disclosure can realize that the terminal efficiently requests other required system information from the base station as required by designating the special lead code group specially used for requesting other system information for the terminal, and reducing the occupation of signaling resources, thereby overcoming the problems of network signaling load, low resource utilization rate and the like caused by transmitting the system information through multiple beamforming in the related technology, and thus, the utilization rate of the system resources can be improved.

As a possible embodiment, a scheme is provided for a 5G idle and inactive User Equipment (UE) to request other system information, in which the UE in idle or inactive state may choose to send a specific indication to the gNB on a specific time-frequency-space resource, where the indication includes an identifier of one of a group of specific preambles and the requested other system information and/or its UE ID. By implementing the scheme, the 5G UE in an idle state or an inactive state can efficiently request the 5G gNB for the required system information. The scheme can comprise the following steps:

step 1, the UE sends a specific indication to the gNB on a specific time-frequency-space resource.

Illustratively, the indication comprises one preamble of a particular set of preambles; by way of example, the indication includes an identification of the other system information requested; illustratively, the indication may also contain the ID of the requesting UE; illustratively, the set of preambles is specific for 5G UEs requesting other system information; for example, the group-specific preamble may be pre-agreed by the gNB with the UE or transmitted by the gNB in Minimum SI.

Step 2, after receiving the indication, the gNB knows that the UE is requesting some other system information or some other system information.

And 3, the gNB decides to send other system information to the requesting UE in a broadcast or unicast mode according to the content and the quantity of the class indication.

In this scheme, the UE in idle state or inactive state may select to send a specific indication to the gNB on a specific time-frequency-space resource, where the indication includes an identifier of one preamble in a specific group of preambles and requested other system information and/or its UE ID. The group specific preamble is dedicated for 5G UEs to request other system information. And the group-specific preamble may be pre-agreed by the gNB with the UE or transmitted by the gNB in Minimum SI. If the gNB receives the indication, it decides to send other system information to the requesting UE in a broadcast or unicast manner according to the content and number of the indication.

In the technical solution provided in the embodiment of the present disclosure, the 5G UE in an idle state or an inactive state can efficiently request the 5G gbb for the required system information, thereby avoiding the transition to a connected state to receive the system information, and improving the resource utilization rate.

The following are embodiments of the disclosed apparatus that may be used to perform embodiments of the disclosed methods.

FIG. 6 is a block diagram illustrating a system information acquisition device according to an example embodiment; the apparatus may be implemented in various ways, for example, with all of the components of the apparatus being implemented in a terminal, or with components of the apparatus being implemented in a coupled manner on the terminal side; the apparatus may implement the method related to the present disclosure through software, hardware, or a combination of both, as shown in fig. 6, the system information acquiring apparatus includes: a selection module 601, a first sending module 602, and a first receiving module 603, wherein:

the selecting module 601 is configured to randomly select a target Other SI preamble from the Other system information Other SI preamble group; wherein, the Other SI preamble group includes at least one Other SI preamble, and is used for the terminal to request to acquire the Other SI;

the first transmitting module 602 is configured to transmit an indication message to the base station using preset resources; wherein, the indication message comprises the target Other SI preamble and the Other SI identifier;

the first receiving module 603 is configured to receive a response message returned by the base station in response to the indication message; wherein, the response message includes Other SI corresponding to the Other SI identifier.

The system information acquisition device provided by the embodiment of the present disclosure randomly selects a target Other SI preamble from Other system information Other SI preamble groups by configuring the selection module 601; wherein, the Other SI preamble group includes at least one Other SI preamble, and is used for the terminal to request to acquire the Other SI; the first sending module 602 sends an indication message to the base station using a preset resource; wherein, the indication message comprises the target Other SI preamble and the Other SI identifier; the first receiving module 603 receives a response message returned by the base station in response to the indication message; wherein, the response message includes Other SI corresponding to the Other SI identifier; therefore, the terminal can efficiently request other required system information from the base station as required, the occupation of signaling resources is reduced, and the problems of network signaling load, low resource utilization rate and the like caused by transmitting the system information through multiple times of beam forming in the related technology can be solved, so that the utilization rate of the system resources can be improved.

Illustratively, the indication message further includes a terminal identifier.

In one possible implementation, as shown in fig. 7, the system information acquiring apparatus shown in fig. 6 may further include: a second receiving module 701 and an obtaining module 702, wherein:

the second receiving module 701 is configured to receive Minimum system information Minimum SI transmitted by the base station through broadcasting; wherein the Minimum SI comprises the Other SI preamble group;

an acquisition module 702 is configured to parse the Minimum SI to acquire the Other SI preamble set.

FIG. 8 is a block diagram illustrating a system information acquisition device according to an example embodiment; the apparatus may be implemented in various ways, for example, with all components of the apparatus being implemented in a base station, or with components of the apparatus being implemented in a coupled manner on the base station side; the apparatus may implement the method related to the present disclosure through software, hardware, or a combination of the two, as shown in fig. 8, the system information acquiring apparatus includes: a detection module 801 and a second sending module 802, wherein:

the detection module 801 is configured to detect an indication message sent by a terminal using a preset resource; wherein, the indication message comprises a target Other system information Other SI lead code and Other SI identification; the target Other SI lead code is used for indicating that the terminal requests to acquire an Other SI corresponding to the Other SI mark;

the second sending module 802 is configured to send a response message to the terminal in response to the indication message; wherein, the response message includes Other SI corresponding to the Other SI identifier.

In one possible implementation, as shown in fig. 9, the system information acquiring apparatus shown in fig. 8 may further include: a third transmitting module 901 configured to transmit Minimum system information Minimum SI to the terminal by broadcasting; wherein, the Minimum SI comprises an Other SI preamble group; the Other SI preamble group comprises at least one Other SI preamble, and is used for the terminal to request to acquire the Other SI.

In a possible implementation, the second sending module 802 sends a response message to the terminal by broadcasting in response to the indication message.

In a possible implementation manner, the indication message further includes a terminal identifier; the second sending module 802 sends the response message to the terminal through unicast according to the terminal identifier.

In a possible implementation manner, the indication message further includes a terminal identifier; the second sending module 802 determines whether the number of the indication messages carrying the Other SI identifier exceeds a preset value; when the number of the indication messages carrying the Other SI identification exceeds the preset value, the response message is sent to the terminal through broadcasting; and when the number of the indication messages carrying the Other SI identifiers does not exceed the preset value, sending the response message to the terminal through unicast according to the terminal identifier.

Fig. 10 is a block diagram illustrating a system information acquisition apparatus 1000 according to an exemplary embodiment, and the system information acquisition apparatus 1000 may be implemented in various ways, such as implementing all components of the apparatus in a terminal or implementing the components of the apparatus in a coupled manner on the terminal side; the system information acquisition apparatus 1000 includes:

a processor 1001;

a memory 1002 for storing processor-executable instructions;

wherein the processor 1001 is configured to:

Illustratively, the indication message further includes a terminal identifier.

In one embodiment, the processor 1001 may be further configured to: before randomly selecting a target Other SI preamble code from an Other SI preamble group, receiving Minimum system information Minimum SI transmitted by the base station through broadcasting; wherein the Minimum SI comprises the Other SI preamble group; and analyzing the Minimum SI to obtain the Other SI preamble group.

The system information acquiring apparatus provided in the foregoing embodiment of the present disclosure specifies the dedicated preamble group dedicated to request other system information for the terminal, and requests the base station for other system information as needed by using the dedicated preamble group, so that the terminal efficiently requests the base station for the required other system information as needed, and reduces the signaling resource occupation, which can overcome the problems of network signaling load and low resource utilization rate, etc. caused by transmitting the system information through multiple beamforming in the related art, and thus, can improve the system resource utilization rate.

Fig. 11 is a block diagram illustrating a system information acquisition apparatus 1100 according to an exemplary embodiment, where the system information acquisition apparatus 1100 may be implemented in various ways, such as implementing all components of the apparatus in a base station or implementing components of the apparatus in a coupled manner on the base station side; the system information acquisition apparatus 1100 includes:

a processor 1101;

a memory 1102 for storing processor-executable instructions;

wherein the processor 1101 is configured to:

In one embodiment, the processor 1101 may be further configured to: before detecting an indication message sent by a terminal by using a preset resource, sending Minimum system information Minimum SI to the terminal through broadcasting; wherein, the Minimum SI comprises an Other SI preamble group; the Other SI preamble group comprises at least one Other SI preamble, and is used for the terminal to request to acquire the Other SI.

In one embodiment, the processor 1101 may be further configured to: and responding to the indication message, and sending a response message to the terminal through broadcasting.

In one embodiment, the indication message further includes a terminal identifier; the processor 1101 may be further configured to send the response message to the terminal through unicast according to the terminal identification.

In one embodiment, the indication message further includes a terminal identifier; the processor 1101 may be further configured to determine whether the number of indication messages carrying the Other SI identifier exceeds a preset value; when the number of the indication messages carrying the Other SI identification exceeds the preset value, the response message is sent to the terminal through broadcasting; or, when the number of the indication messages carrying the Other SI identifier does not exceed the preset value, the response message is sent to the terminal through unicast according to the terminal identifier.

The system information acquiring apparatus provided in the foregoing embodiment of the present disclosure receives a request from a terminal to a base station on demand for Other system information using a dedicated preamble dedicated to request Other system information, and sends an Other SI required by the terminal to the terminal according to the request of the terminal, so that the terminal efficiently requests the required Other system information from the base station on demand, and signaling resource occupancy is reduced, which can overcome the problems of network signaling load and low resource utilization rate, which are caused by transmitting the system information through multiple beamforming in the related art, and thus, can improve the system resource utilization rate.

With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.

Fig. 12 is a block diagram illustrating a system information acquisition apparatus according to an example embodiment. For example, the system information acquiring apparatus 1200 may be a smartphone, a tablet computer, a wearable device, or a vehicle-mounted mobile terminal.

Referring to fig. 12, the system information acquisition apparatus 1200 may include one or more of the following components: processing component 1202, memory 1204, power component 1206, multimedia component 1208, audio component 1210, input/output (I/O) interface 1212, sensor component 1214, and communications component 1216.

The processing component 1202 generally controls the overall operation of the system information acquisition apparatus 1200, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 1202 may include one or more processors 1220 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 1202 can include one or more modules that facilitate interaction between the processing component 1202 and other components. For example, the processing component 1202 can include a multimedia module to facilitate interaction between the multimedia component 1208 and the processing component 1202.

The memory 1204 is configured to store various types of data to support the operation at the system information acquisition apparatus 1200. Examples of such data include instructions for any application or method operating on the system information acquisition apparatus 1200, contact data, phonebook data, messages, pictures, videos, and the like. The memory 1204 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

The power supply component 1206 supplies power to various components of the system information acquisition apparatus 1200. The power components 1206 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the system information acquisition device 1200.

The multimedia component 1208 includes a screen providing an output interface between the system information acquisition apparatus 1200 and the user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 1208 includes a front facing camera and/or a rear facing camera. When the system information acquiring apparatus 1200 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

Audio component 1210 is configured to output and/or input audio signals. For example, the audio component 1210 includes a Microphone (MIC) configured to receive an external audio signal when the system information acquisition apparatus 1200 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 1204 or transmitted via the communication component 1216. In some embodiments, audio assembly 1210 further includes a speaker for outputting audio signals.

The I/O interface 1212 provides an interface between the processing component 1202 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

The sensor assembly 1214 includes one or more sensors for providing various aspects of status assessment for the system information acquisition device 1200. For example, the sensor assembly 1214 may detect the open/closed state of the system information acquisition apparatus 1200, the relative positioning of the components, such as the display and keypad of the system information acquisition apparatus 1200, the sensor assembly 1214 may also detect a change in the position of the system information acquisition apparatus 1200 or a component of the system information acquisition apparatus 1200, the presence or absence of user contact with the system information acquisition apparatus 1200, the orientation or acceleration/deceleration of the system information acquisition apparatus 1200, and a change in the temperature of the system information acquisition apparatus 1200. The sensor assembly 1214 may include a proximity sensor configured to detect the presence of a nearby object in the absence of any physical contact. The sensor assembly 1214 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 1214 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 1216 is configured to facilitate communication between the system information acquisition apparatus 1200 and other devices in a wired or wireless manner. The system information acquiring apparatus 1200 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 1216 receives the broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communications component 1216 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the system information acquisition apparatus 1200 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors, or other electronic components for performing the above-described methods.

In an exemplary embodiment, a non-transitory computer readable storage medium comprising instructions, such as the memory 1204 comprising instructions, executable by the processor 1220 of the system information acquisition device 1200 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.

A non-transitory computer-readable storage medium in which instructions, when executed by a processor of a system information acquisition apparatus 1200, enable the system information acquisition apparatus 1200 to perform a system information acquisition method comprising:

and analyzing the Minimum SI to obtain the Other SI preamble group.

Fig. 13 is a block diagram illustrating a system information acquisition apparatus according to an example embodiment. For example, the system information acquiring apparatus 1300 may be provided as a server. The system information acquisition device 1300 includes a processing component 1302 that further includes one or more processors and memory resources, represented by memory 1303, for storing instructions, such as application programs, that are executable by the processing component 1302. The application stored in memory 1303 may include one or more modules each corresponding to a set of instructions. Further, the processing component 1302 is configured to execute instructions to perform the above-described methods.

The system information acquisition device 1300 may further include a power component 1306 configured to perform power management of the system information acquisition device 1300, a wired or wireless network interface 1305 configured to connect the system information acquisition device 1300 to a network, and an input/output (I/O) interface 1308. The system information acquisition device 1300 may operate based on an operating system stored in the memory 1303, such as Windows Server, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, or the like.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A system information acquisition method is applied to a terminal, and is characterized by comprising the following steps:

sending an indication message to a base station by using a preset resource; wherein, the indication message comprises the target Other SI preamble and the Other SI identifier; the indication message also comprises a terminal identification;

2. The method of claim 1, wherein before randomly selecting the target Other SI preamble from the Other SI preamble group, the method further comprises:

and analyzing the Minimum SI to obtain the Other SI preamble group.

3. A system information acquisition method is applied to a base station, and is characterized in that the method comprises the following steps:

detecting an indication message sent by a terminal by using a preset resource; wherein, the indication message comprises a target Other system information Other SI lead code and Other SI identification; the target Other SI lead code is used for indicating that the terminal requests to acquire an Other SI corresponding to the Other SI mark; the indication message also comprises a terminal identification;

4. The method according to claim 3, wherein before detecting the indication message sent by the terminal using the preset resource, the method further comprises:

5. The method of claim 3, wherein sending a response message to the terminal in response to the indication message comprises:

6. The method of claim 3, wherein sending a response message to the terminal in response to the indication message comprises:

7. The method of claim 3, wherein sending a response message to the terminal in response to the indication message comprises:

8. A system information acquisition apparatus, comprising:

the first sending module is used for sending an indication message to the base station by using a preset resource; wherein, the indication message comprises the target Other SI preamble and the Other SI identifier; the indication message also comprises a terminal identification;

9. The apparatus of claim 8, further comprising:

10. A system information acquisition apparatus, comprising:

the detection module is used for detecting an indication message sent by the terminal by using a preset resource; wherein, the indication message comprises a target Other system information Other SI lead code and Other SI identification; the target Other SI lead code is used for indicating that the terminal requests to acquire an Other SI corresponding to the Other SI mark; the indication message also comprises a terminal identification;

11. The apparatus of claim 10, further comprising:

12. The apparatus of claim 10, wherein the second sending module sends a response message to the terminal by broadcasting in response to the indication message.

13. The apparatus of claim 10, wherein the second sending module sends the response message to the terminal via unicast according to the terminal identifier.

14. The apparatus of claim 10, wherein the second sending module determines whether the number of indication messages carrying the Other SI indicator exceeds a preset value; when the number of the indication messages carrying the Other SI identification exceeds the preset value, the response message is sent to the terminal through broadcasting; and when the number of the indication messages carrying the Other SI identifiers does not exceed the preset value, sending the response message to the terminal through unicast according to the terminal identifier.

15. A system information acquisition apparatus, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to:

16. A system information acquisition apparatus, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to: