CN107889192B

CN107889192B - System information transmission method, user terminal and network side equipment

Info

Publication number: CN107889192B
Application number: CN201610867874.6A
Authority: CN
Inventors: 贺媛
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2016-09-29
Filing date: 2016-09-29
Publication date: 2020-03-20
Anticipated expiration: 2036-09-29
Also published as: CN107889192A; WO2018059294A1

Abstract

The invention provides a system information transmission method, a user terminal and network side equipment, wherein the method comprises the following steps: a user terminal acquires broadcast cycle information of system information of network side equipment as required; and the user terminal acquires the system information on demand sent by the network side equipment according to the broadcast period information. The embodiment of the invention can reduce the overhead of system information.

Description

System information transmission method, user terminal and network side equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a system information transmission method, a user terminal, and a network side device.

Background

The System Information (SI) of a wireless communication System is mainly divided into a Master Information Block (MIB) and a plurality of System Information Blocks (SIBs), wherein the System Information Blocks may include System Information of SIB 1-SIB 20. In practical applications, many scenarios require broadcasting system information, such as: the system information is broadcasted when the UE newly accesses a cell or the broadcast message changes. Currently, each broadcast broadcasts all system information, including MIB, SIB1 and SI, including SIB2 to SIB20, although extension is also possible. Because the system information in the wireless communication system is periodically broadcast at present, and the content of the system information is more and more along with the diversification of the service of the wireless communication system and the continuous evolution of the terminal type, the overhead occupation of the system information is more and more. It can be seen that the problem of excessive overhead of system information exists in the current wireless communication system.

Disclosure of Invention

The invention aims to provide a system information transmission method, a user terminal and network side equipment, which solve the problem of overlarge system information overhead in a wireless communication system.

In order to achieve the above object, an embodiment of the present invention provides a system information transmission method, including:

a user terminal acquires broadcast cycle information of system information (on-demand SI) of network side equipment as required;

and the user terminal acquires the system information on demand sent by the network side equipment according to the broadcast period information.

Optionally, the obtaining, by the user terminal, broadcast cycle information of system information on demand of the network side device includes:

the user terminal receives system information (periodic broadcast SI) periodically broadcast by the network side equipment, wherein the system information periodically broadcast comprises the broadcast period information of the system information according to the requirement.

Optionally, the system information broadcasted periodically further includes broadcast indication information of the on-demand system information.

Optionally, the broadcast indication information is used to indicate whether an on-demand system information broadcast is sent when a broadcast cycle of the next on-demand system information arrives.

Optionally, the broadcast indication information is used to indicate which on-demand system information will be broadcast and transmitted when a broadcast period of the next on-demand system information arrives.

Optionally, the broadcast indication information indicates, in an index list or a bitmap, which on-demand system information will be broadcast and transmitted when a broadcast period of next on-demand system information arrives.

Optionally, the broadcast period information includes:

a system information period, a starting point, and a system information time window.

Optionally, the method further includes:

the user terminal sends an on-demand system information request message to the network side equipment, wherein the on-demand system information request message is used for requesting the on-demand system information required by the user terminal;

the user terminal obtains the system information on demand sent by the network side equipment according to the broadcast period information, and the method comprises the following steps:

and the user terminal receives the on-demand system information response message sent by the network side equipment when the next on-demand system information broadcasting period arrives.

Optionally, the on-demand system information response message includes all or part of the on-demand system information required by the user terminal, or the on-demand system information response message does not include the system information required by the user terminal;

wherein, the on-demand system information response message further includes all or part of the on-demand system information required by other user terminals, or does not include the on-demand system information required by other user terminals.

Optionally, the on-demand system information response message includes a system information table index, and the user terminal obtains the on-demand system information sent by the network side device according to the broadcast cycle information, further including:

the user terminal searches the system information on demand corresponding to the system information table index from the stored system information table;

wherein the on-demand system information corresponding to the system information table index includes all or part of the on-demand system information required by the user terminal, or does not include the system information required by the user terminal;

and the on-demand system information corresponding to the system information table index further includes all or part of on-demand system information required by other user terminals, or the on-demand system information corresponding to the system information table index does not include on-demand systems required by other user terminals.

Optionally, the sending, by the user terminal, an on-demand system information request message to the network side device includes:

if the user terminal only receives the broadcast cycle information, the user terminal sends a system information request message on demand to the network side equipment; or

If the broadcast indication information received by the user terminal indicates that the next on-demand system information broadcast period is reached and no on-demand system information broadcast is sent, the user terminal sends an on-demand system information request message to the network side equipment; or

If the broadcast indication information received by the user terminal indicates that the next on-demand system information broadcast period arrives, the on-demand system information broadcast is sent, but the user terminal does not receive the on-demand system information required by the user terminal in the broadcast period, the user terminal sends an on-demand system information request message to the network side equipment; or

And if the on-demand system information broadcasted and sent when the broadcast indication information received by the user terminal indicates that the broadcast period of the next on-demand system information arrives does not include the on-demand system information required by the user terminal, the user terminal sends an on-demand system information request message to the network side equipment.

the user terminal sends a system information request message on demand to the network side equipment through a message 3(Msg3) of a random access process; or

The user terminal sends a system information request message according to the requirement to the network side equipment through a Radio Resource Control (RRC) message; or

The user terminal sends a system information request message as required to the network side device through a Media Access Control (MAC) Channel Element (CE).

Optionally, the system information request message includes an information list of the system information required by the user terminal on demand.

Optionally, the method further includes:

the user terminal acquires mapping relation information of an uplink signal and system information on demand;

the user terminal sends the system information request message according to the requirement to the network side equipment, and the method comprises the following steps:

and the user terminal sends an uplink signal to the network side equipment, wherein the uplink signal has a mapping relation with the system information required by the user terminal according to the requirement.

Optionally, the obtaining, by the user terminal, system information on demand sent by the network side device according to the broadcast period information includes:

if the broadcast indication information indicates that the next on-demand system information broadcast cycle arrives, the on-demand system information broadcast is sent, and the user terminal receives the on-demand system information broadcast by the network side equipment when the next on-demand system information broadcast cycle arrives, wherein:

the system information on demand broadcast and sent by the network side equipment comprises all or part system information on demand required by the user terminal, or does not comprise the system information required by the user terminal;

and the on-demand system information broadcast and sent by the network side equipment also comprises all or part of on-demand system information required by other user terminals, or does not comprise on-demand system information required by other user terminals.

Optionally, after the user terminal sends an on-demand system information request message to the network side device, the method further includes:

and if the user terminal does not receive the feedback returned by the network side equipment in the next broadcasting period of the system information on demand, performing the next broadcasting and sending process of the system information on demand.

The embodiment of the invention provides a system information transmission method, which comprises the following steps:

the method comprises the steps that system information is periodically broadcasted by network side equipment, wherein the periodically broadcasted system information comprises broadcast period information of system information of the network side equipment according to needs;

and the network side equipment broadcasts and sends the system information of the network side equipment according to the broadcasting period information.

Optionally, the broadcast period information includes:

Optionally, the method further includes:

the network side equipment receives an on-demand system information request message sent by a user terminal, wherein the on-demand system information request message is used for requesting the on-demand system information required by the user terminal;

the network side equipment broadcasts and sends the system information of the network side equipment according to the broadcast cycle information, and the method comprises the following steps:

and the network side equipment broadcasts and sends the system information response message according to the requirement when the broadcast period of the next system information according to the requirement arrives.

Optionally, the on-demand system information response message includes a system information table index, so that the user terminal searches, from a stored system information table, on-demand system information corresponding to the system information table index;

Optionally, the receiving, by the network side device, the on-demand system information request message sent by the user terminal includes:

if the user terminal only receives the broadcast cycle information, the network side equipment receives the system information request message which is sent by the user terminal and is on demand; or

If the broadcast indication information received by the user terminal indicates that the next on-demand system information broadcast period is reached and no on-demand system information broadcast is sent, the network side equipment receives an on-demand system information request message sent by the user terminal; or

If the broadcast indication information received by the user terminal indicates that the next on-demand system information broadcast period arrives, the on-demand system information broadcast is sent, but the user terminal does not receive the on-demand system information required by the user terminal in the broadcast period, the network side equipment receives the on-demand system information request message sent by the user terminal; or

And if the on-demand system information broadcasted and sent when the broadcast indication information received by the user terminal indicates that the broadcast period of the next on-demand system information arrives does not include the on-demand system information required by the user terminal, the network side equipment receives the on-demand system information request message sent by the user terminal.

the network side equipment receives an on-demand system information request message sent by the user terminal through 3Msg3 in a random access process; or

The network side equipment receives an on-demand system information request message sent by the user terminal through an RRC message; or

And the network side equipment receives the system information request message which is sent by the user terminal through the MAC CE and is on demand.

Optionally, the system information periodically broadcasted further includes mapping relationship information between an uplink signal and the system information as needed;

the network side equipment receives the system information request message on demand sent by the user terminal, and the method comprises the following steps:

and the network side equipment receives an uplink signal sent by the user terminal, wherein the uplink signal has a mapping relation with the system information required by the user terminal according to the requirement.

An embodiment of the present invention further provides a user terminal, including:

the first acquisition module is used for acquiring the broadcast cycle information of the system information of the network side equipment as required;

and the second acquisition module is used for acquiring the system information which is sent by the network side equipment according to the broadcast period information.

Optionally, the second obtaining module is configured to receive system information periodically broadcast by the network side device, where the periodically broadcast system information includes broadcast period information of the on-demand system information.

Optionally, the broadcast period information includes:

Optionally, the user terminal further includes:

a sending module, configured to send an on-demand system information request message to the network side device, where the on-demand system information request message is used to request on-demand system information required by the user terminal;

the second obtaining module is configured to receive an on-demand system information response message sent by the network side device when a next on-demand system information broadcast cycle arrives.

Optionally, the on-demand system information response message includes a system information table index, and the second obtaining module is further configured to search, from the stored system information table, on-demand system information corresponding to the system information table index from the user terminal;

Optionally, the sending module is configured to send, to the network side device, a system information request message as needed if the user terminal receives only the broadcast period information; or

The sending module is used for sending an on-demand system information request message to the network side equipment if the broadcast indication information received by the user terminal indicates that the broadcast cycle of the next on-demand system information is not sent by on-demand system information broadcast when the broadcast indication information indicates that the broadcast cycle of the next on-demand system information is reached; or

The sending module is configured to send an on-demand system information request message to the network side device if the broadcast indication information received by the user terminal indicates that an on-demand system information broadcast is sent when a broadcast period of next on-demand system information is reached, but the user terminal does not receive the on-demand system information required by the user terminal in the broadcast period; or

The sending module is configured to send an on-demand system information request message to the network side device if the on-demand system information that is broadcast and sent when the broadcast indication information received by the user terminal indicates that the broadcast cycle of the next on-demand system information arrives does not include the on-demand system information that is required by the user terminal.

Optionally, the second obtaining module is configured to send a system information request message as needed to the network side device through a message 3Msg3 in a random access process; or

The second acquisition module is used for sending an on-demand system information request message to the network side equipment through a Radio Resource Control (RRC) message; or

The second obtaining module is configured to send a system information request message on demand to the network side device through a media access control MAC channel element CE.

Optionally, the user terminal further includes:

the third acquisition module is used for acquiring the mapping relation information of the uplink signal and the system information as required;

the sending module is configured to send an uplink signal to the network side device, where the uplink signal has a mapping relationship with system information required by the user terminal as needed.

Optionally, the second obtaining module is configured to, if the broadcast indication information indicates that a broadcast period of next on-demand system information arrives, send an on-demand system information broadcast, and receive the on-demand system information broadcast by the network side device when the broadcast period of the next on-demand system information arrives, where:

Optionally, if the user terminal does not receive the feedback returned by the network side device in the next on-demand system information broadcast period, the user terminal performs the next on-demand system information broadcast sending process.

An embodiment of the present invention further provides a network side device, including:

the first broadcasting module is used for periodically broadcasting system information, wherein the periodically broadcasted system information comprises broadcasting period information of the system information of the network side equipment on demand;

and the second broadcasting module is used for broadcasting and sending the system information of the network side equipment according to the broadcasting period information.

Optionally, the broadcast period information includes:

Optionally, the network side device further includes:

a receiving module, configured to receive an on-demand system information request message sent by a user terminal, where the on-demand system information request message is used to request on-demand system information required by the user terminal;

the second broadcasting module is used for broadcasting and sending the system information response message according to the requirement when the broadcasting period of the next system information according to the requirement arrives.

Optionally, the receiving module is configured to receive an on-demand system information request message sent by the user terminal if the user terminal only receives the broadcast period; or

The receiving module is used for receiving the on-demand system information request message sent by the user terminal if the broadcast indication information received by the user terminal indicates that the next on-demand system information broadcast period is not sent when the broadcast period arrives; or

The receiving module is used for receiving an on-demand system information request message sent by the user terminal if the broadcast indication information received by the user terminal indicates that an on-demand system information broadcast is sent when a broadcast period of the next on-demand system information is reached, but the user terminal does not receive the on-demand system information required by the user terminal in the broadcast period; or

The receiving module is configured to receive an on-demand system information request message sent by the user terminal if the on-demand system information broadcasted when the broadcast indication information received by the user terminal indicates that the broadcast period of the next on-demand system information arrives does not include the on-demand system information required by the user terminal.

Optionally, the receiving module is configured to receive an on-demand system information request message sent by the user terminal through 3Msg3 in a random access process; or

The receiving module is used for receiving an on-demand system information request message sent by the user terminal through an RRC message; or

The receiving module is used for receiving the system information request message which is sent by the user terminal through the MAC CE and is required by the user terminal.

the receiving module is configured to receive an uplink signal sent by the user terminal, where the uplink signal has a mapping relationship with system information required by the user terminal.

The technical scheme of the invention at least has the following beneficial effects:

in the embodiment of the invention, a user terminal acquires the broadcast cycle information of the system information of the network side equipment as required; and the user terminal acquires the system information on demand sent by the network side equipment according to the broadcast period information. Therefore, system information can be sent as required, and compared with the prior art that all system information is periodically broadcast, the embodiment of the invention can reduce the overhead of the system information.

Drawings

Fig. 1 is a schematic diagram of a network structure according to an embodiment of the present invention;

fig. 2 is a schematic flowchart of a system information transmission method according to an embodiment of the present invention;

fig. 3 is a flowchart illustrating another system information transmission method according to an embodiment of the present invention;

FIG. 4 is a diagram illustrating message transmission according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a user terminal according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of another ue according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of another ue according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a network-side device according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of another network-side device according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of another ue according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of another network-side device according to an embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, fig. 1 is a schematic diagram of a network structure provided in an embodiment of the present invention, and as shown in fig. 1, the network structure includes one or more User terminals 11 and a network side device 12, where a User Equipment (UE) 11 is illustrated in the drawing by way of example. The user terminal 11 may be a terminal side Device such as a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), or a Wearable Device (Wearable Device), and it should be noted that a specific type of the user terminal 11 is not limited in the embodiment of the present invention. The user terminal 11 may establish communication with the network-side device 12, where the network in the drawing may indicate that the user terminal 11 wirelessly establishes communication with the network-side device 12, the network-side device 12 may be a base station, and the base station may be a macro station, such as an LTE eNB, a 5G NR NB, or the like; or a small station, such as a Low Power Node (LPN) pico, a femto, or an Access Point (AP); the network-side device 12 may also be a network node formed by a Central Unit (CU) and a plurality of Transmission Reception Points (TRPs) managed and controlled by the CU. In addition, one or more cells (e.g., different frequency bins or sector splits) are located under one base station. It should be noted that the specific type of the network-side device 12 is not limited in the embodiment of the present invention.

Referring to fig. 2, an embodiment of the present invention provides a method for transmitting system information, as shown in fig. 2, including the following steps:

201. a user terminal acquires broadcast cycle information of system information of network side equipment as required;

202. and the user terminal acquires the system information on demand sent by the network side equipment according to the broadcast period information.

In this embodiment of the present invention, the on-demand System Information (SI) of the network-side device may be part of system information included in the network-side device, or the on-demand system information of the network-side device may be system information other than periodically broadcast system information (periodic broadcast SI) in the network-side device. The periodically broadcasted system information (periodic broadcast SI) may be the system information that needs to be periodically broadcasted in the system information of the network side device, for example: system information other than on-demand system information, or system information in which a user terminal camps on a cell and accesses the camped cell, such as all or part of the contents of MIB, SIB1, and SIB 2; or the UE camps on the cell and accesses system information necessary for camping on the cell, etc. In addition, on-demand system information (on-demand SI) may also be understood as system information transmitted in an on-demand manner.

In addition, the broadcast cycle information of the on-demand system information of the network side device may be information describing or indicating a broadcast cycle of the on-demand system information of the network side device, that is, the user terminal may determine the broadcast cycle of the on-demand system information of the network side device through the broadcast cycle information. And the network side equipment broadcasts the system information according to the broadcasting period. It should be noted that the network side device does not need to broadcast the on-demand system information in each on-demand system information broadcast period, for example: there is no system information that the user terminal needs as required in a certain broadcast period, and the network side device may not broadcast the system information as required in the broadcast period. In addition, the on-demand system information broadcasted each time by the network side device may be different, or partially the same or all the same, and the on-demand system information broadcasted each time may be a part or all of the on-demand system information of the network side device. For example: in a broadcast period, a user terminal needs SIB3 and SIB4, and the network side device may broadcast only SIB3 and SIB4 in the broadcast period. In addition, the on-demand System Information (SI) broadcast period may be understood as that a network side device may have one transmission opportunity every other period, and the on-demand system information may be broadcast and transmitted on the transmission opportunity, or may not be broadcast and transmitted on some transmission opportunities.

In addition, it should be noted that the broadcast period information acquired in step 201 may be periodically sent by the receiving network side device, or acquired by the user terminal in advance, for example: the network side equipment is configured for the user terminal in advance.

After the user terminal acquires the broadcast period information, the periods of the system information on demand sent by the network side equipment can be determined, so that the system information on demand sent by the network side equipment can be acquired in the periods.

It should be noted that, in the embodiment of the present invention, the system information is not limited to MIB, and SIB1 to SIB20, for example: the system information may also be SIBn, where n is an integer greater than 20, or system information that accommodates future developments in wireless communication systems. Wherein:

the SIB1 may include parameters related to broadcast cell access and cell selection and scheduling information of SI messages, and may include one or more SIBs 2-13;

the SIB2 may include a radio parameter configuration common to all UEs in a cell, and other radio parameter basic configurations;

the SIB3 may include cell reselection information, primarily regarding serving cell reselection parameters as well as intra-frequency cell reselection parameters;

the SIB4 may include a list of co-frequency neighbor cells and reselection parameters for each neighbor cell, a list of co-frequency white/black-listed cells;

the SIB5 may include a list of inter-frequency neighboring frequency points and reselection parameters for each frequency point, a list of inter-frequency neighboring cells and reselection parameters for each neighboring cell, and a list of inter-frequency blacklisted cells.

The SIB6 may include a universal Terrestrial Radio Access-Frequency Division Duplexing (UTRAFDD) adjacent Frequency point list, and a reselection parameter of each Frequency point, an UTRATDD adjacent Frequency point list, and a reselection parameter of each Frequency point;

the SIB7 may include a GSM and EDGE Radio Access Network GERAN (GSM EDGE Radio Access Network, GERAN) neighboring frequency point list and reselection parameters of each frequency point;

the SIB8 may include pre-registration information of CDMA2000, a list of CDMA2000 neighboring bands and reselection parameters for each band, and a neighbor list of CDMA2000 neighboring bands;

the SIB9 may include the name of the Home base station (Home eNodeB);

the SIB10 may include an Earthquake Tsunami Warning System (ETWS) primary notification (primary notification);

the SIB11 may include an ETWS secondary notification (secondary notification);

the SIB12 may include a Commercial Mobile Alert Service (CMAS) notification (CMAS notification);

the SIB13 may include information to obtain multimedia broadcast Multicast function (MBMS) control information associated with one or more MBSFN areas.

The SIB 14-SIB 20 have their respective characteristics and are not described one by one.

In addition, it should be noted that the on-demand system information acquired in step 202 may include all or part of the on-demand system information required by the user terminal, or the on-demand system information acquired in step 202 does not include the system information required by the user terminal, for example: the above-mentioned system information required by the user terminal is SIB3 and SIB4, and the system information sent by the network side device may be SIB3 and SIB4, or SIB3 and SIB5, or SIB6, SIB7, SIB8 and SIB9, etc. And when the on-demand system information received by the user terminal does not include the system information required by the user terminal or only includes part of the system information required by the user terminal, the user terminal can execute the next on-demand system information acquisition process.

The user terminal can obtain the system information according to the requirement sent by the network side equipment according to the broadcasting period through the steps, and the aim of saving transmission resources can be achieved because all the system information is not broadcasted every time.

Optionally, the obtaining, by the ue, broadcast cycle information of system information on demand of the network side device includes:

and the user terminal receives system information periodically broadcasted by the network side equipment, wherein the periodically broadcasted system information comprises the broadcasting period information of the system information according to the requirement.

In this embodiment, the user terminal can acquire the broadcast cycle information of the system information on demand of the network side device from the system information periodically broadcast by the network side device. In addition, the broadcast period of the on-demand system information may be longer than the broadcast period of the periodically broadcast system information, for example: the former may be an integer multiple of the latter. In addition, the system information periodically broadcasted may be system information of a broadcasting period including only system information on demand, and of course, in some scenarios, the system information periodically broadcasted may further include other system information requiring periodic broadcasting, such as MIB, SIB1, and SIB 2.

Optionally, the system information periodically broadcasted includes broadcast indication information of the system information as needed.

The broadcast indication information is used to indicate the transmission condition of the system information on demand in the next broadcast cycle of the system information on demand, for example: the network side device broadcasts and transmits the system information on demand in the next broadcast period of the system information on demand, or the network side device does not broadcast and transmit the system information on demand in the next broadcast period of the system information on demand, or the network side device transmits which system information on demand in the next broadcast period of the system information on demand, and the like. Thus, after the user terminal receives the broadcast indication information, step 202 may obtain an on-demand system sent by the network side device according to the broadcast period and the broadcast indication information.

The next on-demand system information broadcast cycle may be an on-demand system information broadcast cycle of the network-side device closest to the current time. The broadcast indication information may be indicated by a bit, for example: 1 bit is used for indicating, 1 indicates that the system information is broadcast on demand when the broadcast period of the next system information on demand arrives, and 0 indicates that the system information is not broadcast; or when the broadcast cycle of the next on-demand system information arrives, the on-demand system information is broadcast by true (true), and when the broadcast cycle does not arrive, the indication is not given.

In this embodiment, the broadcast indication information may save power consumption of the terminal, for example: when it is instructed not to broadcast the on-demand system information in the next broadcast period, the user terminal does not need to perform the acquisition operation, thereby saving power consumption.

In this embodiment, the broadcast indication information may be used to indicate which on-demand system information is to be broadcast by the network side device when a broadcast cycle of the next on-demand system information arrives. So that the user terminal can perform the acquired action according to the broadcast indication information, for example: the indicated on-demand system information does not include the on-demand system information required by the user terminal, but can not be acquired, so that the power consumption of the terminal is saved; and if the indicated on-demand system information comprises the on-demand system information required by the user terminal, acquiring the on-demand system information broadcasted by the network side equipment in the next broadcasting period.

In this embodiment, the broadcast indication information may be understood as an on-demand system information list to indicate which on-demand system information is broadcast and transmitted when the next on-demand system information broadcast cycle arrives. The index list (index list) may be, or may be, a bitmap (bitmap) indicating a system information index (SIB index), where the bitmap indicates whether SIB1 to SIBn (n is a positive integer, for example, n is 20) are included in the on-demand system information broadcast transmission, and if included, it is denoted by 1; otherwise, it is represented by 0.

Optionally, the broadcast period information includes:

The system information period may be understood as an on-demand system information broadcast period of the network side device, that is, a time interval of transmission opportunities for the network side device to broadcast and transmit the on-demand system information. Preferably, the system information period may be represented by a radio frame number, for example: { rf8, rf16, rf32, rf64, rf128, rf256, rf512 }. Therefore, the user terminal can determine the broadcasting period of the system information on demand of the network side equipment through the system information period.

In addition, the starting point may be a starting point of each system information cycle, that is, a starting point of each time interval of transmission opportunities for the network side device to broadcast and transmit the on-demand system information. Of course, the above starting point may be understood as a starting position. Preferably, the starting point may be represented by subframe information of the radio frame, for example: the starting point may be an nth subframe in a radio frame corresponding to each system information period, for example: n is 2, 3, 4, 5, or 6, etc. The user terminal can determine the starting point of the system information according to the requirement of each broadcast period through the starting point, so that the system information can be received at the starting point.

The above system information time window may be understood as a time window length for the ue to receive the on-demand system information when a system information period transmitted by the on-demand system information broadcast arrives. For example: the next on-demand system information broadcast cycle is sent with on-demand system information broadcast, so that the user terminal can receive the on-demand system information in the system information time window when the broadcast cycle arrives.

It should be noted that, the system information time window and the starting point are not limited to be carried in each broadcast cycle information, but may be carried in each broadcast cycle information. Since the system information time window and the starting point may be fixed in some scenarios or within a certain time, the user terminal may be configured with the system information time window and the starting point in advance; or only the first broadcast period information in a certain time carries the system information period, the starting point and the system information time window, while the next one or more broadcast period information may only carry the system information period, but may not carry the starting point and the system information time window. In addition, the system information period, the starting point and the system information time window may be configured by the network side device.

Optionally, the method further includes:

the user terminal sends an on-demand system information request message (on-demand request message) to the network side equipment, wherein the on-demand system information request message is used for requesting the on-demand system information required by the user terminal;

and when the next broadcast cycle of the system information on demand arrives, the user terminal receives a system information response message (on-demand SI response message) on demand sent by the network side equipment.

In this embodiment, the user terminal may send the system information request message to the network side device to request the system information required by the user terminal. For example: the above system information required by the ue is SIB3 and SIB4, and the ue may send a system information request message corresponding to SIB3 and SIB4 to the network side device. The step of sending the system information request message may be performed after step 201, and of course, in some scenarios, may also be performed before step 201.

When the network side device receives the system information request message, the system information on demand can be sent in the next broadcast period of the system information on demand according to the system information request message. Or the network side device may broadcast and send the on-demand system information response message when the next on-demand system information broadcast cycle arrives according to the on-demand system information request message sent by the user terminal and the on-demand system information that can be provided by itself, where the on-demand system information response message includes all or part of the on-demand system information that can be provided and is needed by the user terminal.

In this embodiment, on-demand system information transmission can be performed according to an on-demand system information request message transmitted by a user terminal, so that broadcasting of on-demand system information that is not required by the user terminal can be avoided, and waste of transmission resources can be avoided. Of course, the user terminal may also send the system information request message as needed, for example: according to the broadcast indication information, it is known that the network side equipment will send the system information on demand in the next system information broadcast period on demand, and then the system information on demand can be directly obtained in the next broadcast period, and the system information on demand which may be obtained includes the system information required by the user terminal, and if the system information on demand does not include the system information required by the user terminal, the user terminal can send the system information on demand request message again. Or the user terminal learns that the system information on demand broadcasted by the network side equipment in the next system information on demand broadcasting period can include the system information required by the user terminal according to the broadcast indication information, and the system information can be directly acquired in the next broadcasting period, so that the request message does not need to be sent.

In addition, the network side device may schedule the system information response message as needed using a Physical Downlink Control Channel (PDCCH) scrambled by a radio network temporary identifier (SI-RNTI) (e.g., OD-SI-RNTI), and each user equipment may be addressed by the SI-RNTI. And for the system information response message on demand sent in a broadcast mode, the network side can repeatedly send the system information on demand, and the user terminal improves the system information receiving performance by retransmitting and combining (without ACK/NACK feedback) through Hybrid automatic repeat reQuest (HARQ).

For example: the on-demand system information response message includes all or part of the on-demand system information required by the user terminal, or the on-demand system information response message does not include the system information required by the user terminal; or

The on-demand system information response message comprises all on-demand system information required by the user terminal, and also comprises all or part of on-demand system information required by other user terminals, or does not comprise system information required by other user terminals; or

The on-demand system information response message comprises part of on-demand system information required by the user terminal, and also comprises all or part of on-demand system information required by other user terminals, or does not comprise system information required by other user terminals; or

The on-demand system information response message does not include the on-demand system information required by the user terminal, but includes all or part of the on-demand system information required by other user terminals, or does not include the system information required by other user terminals.

And if the on-demand system information response message does not include the on-demand system information required by the user terminal, determining that the network side cannot provide the system information required by the network side. In addition, in this embodiment, the network side device broadcasts the on-demand system information required by the multiple user terminals, that is, the network side terminal merges the on-demand system information required by the multiple user terminals that can be provided, and broadcasts and transmits the system information when the next on-demand system information broadcasting period arrives, so as to save transmission resources. For example, the system information requested by the UE1 is { SIB3, SIB4}, the system information requested by the UE2 is { SIB5, SIB6}, the system information requested by the UE3 is { SIB3, SIB4, SIB5, SIB6}, the network side device broadcasts the system information including SIB3, SIB4, SIB5, and SIB6 when the next on-demand system information broadcast period arrives according to the on-demand system information request message sent by 3 UEs, in combination with the on-demand system information that can be provided by itself, but of course, only part of the SIB3, SIB4, SIB5, and SIB6 may be included, and other system information may also be included.

For example: the on-demand system information corresponding to the system information table index includes all or part of the on-demand system information required by the user terminal, or does not include the system information required by the user terminal; or

The on-demand system information corresponding to the system information table index includes all on-demand system information required by the user terminal, and also includes all or part of on-demand system information required by other user terminals, or does not include system information required by other user terminals; or

The on-demand system information corresponding to the system information table index includes part of the on-demand system information required by the user terminal, and also includes all or part of the on-demand system information required by other user terminals, or does not include the system information required by other user terminals; or

The on-demand system information corresponding to the system information table index does not include the on-demand system information required by the user terminal, but includes all or part of the on-demand system information required by other user terminals, or does not include the system information required by other user terminals.

In this embodiment, the on-demand system information broadcasted by the network side may be a system information table index (SItable index) to save transmission overhead. In addition, the system information table index is a way for a ue that has stored a system information table (SItable), and the ue receives the system information table index and can search the system information table to find the corresponding SIB content. The system information table stored in the user terminal may be configured in advance, or may be received and stored in advance by the user terminal.

In this embodiment, if the terminal receives only the broadcast period of the on-demand system information, the system information request message may be sent to the network side device, so as to avoid a situation that the network side device does not broadcast the on-demand system information when the on-demand system information broadcast period is reached.

And it can also realize that there is no on-demand system information broadcast transmission when the broadcast indication information received by the user terminal indicates that the next on-demand system information broadcast cycle arrives, for example: and if the user terminal receives the existence indication of 0 or does not have the existence indication, the user terminal indicates that the system information on demand is not broadcasted and sent when the next system information broadcasting period on demand arrives, and then the user terminal sends the system information request message to the network side equipment so as to avoid the condition that the network side equipment does not broadcast the system information on demand when the system information broadcasting period on demand arrives.

And the system information broadcast transmission on demand can be realized when the broadcast indication information received by the user terminal indicates that the next system information broadcast cycle on demand arrives, and the system information on demand received in the next system information broadcast cycle on demand does not include the system information on demand required by the user terminal, wherein the system information on demand does not include any system information on demand required by the user terminal or does not include part of the system information on demand required by the user terminal, namely only comprises part. So that the user terminal transmits the system information request message. It should be noted that, in this scenario, the broadcast period of the next on-demand system information, where the on-demand system information response message is received by the ue, is the second on-demand system information broadcast period after the broadcast period is received in step 201, because the ue finds that the received on-demand system information does not include the system information required by the ue when the broadcast period of the first on-demand system information arrives. For example: if the user terminal receives the presence indication of 1 or true and indicates that the system information on demand is broadcast and transmitted when the next system information on demand broadcast cycle arrives, the user terminal can acquire the system information on demand broadcast and transmitted when the next system information on demand broadcast cycle arrives. Further, the user terminal checks whether the system information required by the user terminal is contained, and if the system information required by the user terminal is contained, the user terminal acquires the required system information; if not, the user terminal sends the system information request message according to the requirement to the network side equipment.

And if the on-demand system information broadcasted and sent when the broadcast indication information received by the user terminal indicates that the broadcast period of the next on-demand system information arrives does not include the on-demand system information required by the user terminal, sending an on-demand system information request to the network side equipment. For example: broadcast indication information the next system information broadcast period on demand will broadcast SIB4, SIB5 and SIB6, but the user terminal needs SIB3 and SIB4, and the user terminal can send the system information request message on demand. For example: if the user terminal receives the system information list according to the requirement and indicates which system information according to the requirement is broadcast and sent when the next system information broadcasting period according to the requirement arrives, the user terminal checks whether the system information required by the user terminal is contained, and if the system information required by the user terminal is contained, the user terminal can acquire the required system information when the next system information broadcasting period according to the requirement arrives; if not, the user terminal sends the system information request message according to the requirement to the network side equipment.

Optionally, the sending, by the user terminal, the system information request message on demand to the network side device includes:

the user terminal sends a system information request message as required to the network side equipment through the Msg3 in the random access process; or

The user terminal sends a system information request message according to the requirement to the network side equipment through an RRC message; or

And the user terminal sends a system information request message on demand to the network side equipment through the MAC CE.

In this embodiment, the idle/inactive ue performs on-demand system information request message transmission through a random access procedure. That is, the system information request message on demand is included in the Msg3 of the random access procedure. And the connected user terminal sends the system information request message according to the requirement through RRC message or MAC CE. That is, the UE may include an on-demand system information request message including an on-demand system information list in the RRC message or the MAC CE. The random access procedure may be a random access procedure in an LTE system.

Optionally, the system information request message includes an information list of the system information required by the user terminal.

In this embodiment, it may be implemented that the information list of the on-demand system information indicates the on-demand system information required by the user terminal, for example: when the system information required by the user terminal is SIB3 and SIB4, the list of the on-demand system information included in the on-demand system information request message transmitted by the user terminal is { SIB3, SIB4} or {00110000000000000000 }.

Optionally, the method further includes:

In this embodiment, the mapping relationship information may be obtained from system information of received periodic broadcast, that is, the system information of periodic broadcast transmitted by the network side device includes the mapping relationship information, or may be configured in advance by the user terminal so as to obtain the mapping relationship information locally. In this embodiment, the uplink signal may be sent to notify the network side device of the system information required by the ue on demand, and the sending of the uplink signal is implemented based on the existing flow, so that the communication flow may be reduced, and the ue and the network side device may be improved. Of course, the network side device also acquires the mapping relationship information in advance. For example: and the idle state/non-activated user terminal transmits the system information request message according to the requirement through an uplink signal process. That is, the ue sends an uplink signal (e.g., Preamble, Sync synchronization code, etc.), and the uplink signal and the on-demand system information have a mapping table. For example, Preamble1 corresponds to SIB3, Preamble2 corresponds to SIB4 or Preamble3 corresponds to SIB3 and SIB 4.

Optionally, the obtaining, by the user terminal, the system information on demand sent by the network side device according to the broadcast period includes:

For example: the system information on demand broadcast and sent by the network side equipment comprises all or part system information on demand required by the user terminal, or does not comprise the system information required by the user terminal; or

The on-demand system information broadcast and sent by the network side equipment comprises all on-demand system information required by the user terminal, and also comprises all or part on-demand system information required by other user terminals, or does not comprise system information required by other user terminals; or

The on-demand system information broadcast and sent by the network side equipment comprises part of on-demand system information required by the user terminal, and also comprises all or part of on-demand system information required by other user terminals, or does not comprise system information required by other user terminals; or

The on-demand system information broadcast and sent by the network side equipment does not include the on-demand system information required by the user terminal, but includes all or part of the on-demand system information required by other user terminals, or does not include the system information required by other user terminals.

In this embodiment, if the broadcast indication information indicates that the next on-demand system information broadcast cycle arrives, the on-demand system information broadcast transmission may be performed, and the user terminal may directly receive the on-demand system information broadcast transmitted by the network side device when the next on-demand system information broadcast cycle arrives. Here, the broadcast instruction information may be understood as indicating whether the broadcast instruction information indicates on-demand system information broadcast when the broadcast period of the next on-demand system information arrives. The on-demand system information transmission may also be indicated when the next on-demand system information broadcast cycle arrives by indicating that the on-demand system information is broadcast when the broadcast cycle of the next on-demand system information arrives, for example: the system information which is broadcast and sent when the next system information broadcasting period on demand indicated by the broadcast indication information arrives comprises the system information which is needed by the user terminal, so that the user terminal can directly receive the system information on demand which is broadcast and sent by the network side equipment when the next system information broadcasting period on demand arrives, the system information request message on demand does not need to be sent, and the transmission overhead is saved.

In this embodiment, it can be realized that the user terminal does not receive the feedback from the network side when the next on-demand system information broadcast cycle arrives, and if the request for the on-demand system information fails, the user terminal needs to perform the next on-demand system information broadcast transmission process.

It should be noted that, in the embodiment of the present invention, various optional implementations described above may be implemented in combination with each other, or may be implemented separately, and the embodiment of the present invention is not limited thereto.

In the embodiment of the invention, a user terminal acquires the broadcast period of system information of network side equipment as required; and the user terminal acquires the system information on demand sent by the network side equipment according to the broadcast period. Therefore, system information can be sent according to needs, and compared with the prior art that all system information is periodically broadcast, the embodiment of the invention can reduce the resource overhead of the whole system information and improve the whole resource utilization rate of the system.

Referring to fig. 3, an embodiment of the present invention further provides a system information transmission method, as shown in fig. 3, including the following steps:

301. the method comprises the steps that system information is periodically broadcasted by network side equipment, wherein the periodically broadcasted system information comprises broadcast period information of system information of the network side equipment according to needs;

302. and the network side equipment broadcasts and sends the system information of the network side equipment according to the broadcasting period information.

Optionally, the broadcast period information includes:

Optionally, the method further includes:

It should be noted that, this embodiment is used as an implementation of the network side device corresponding to the embodiment shown in fig. 2, and for a specific implementation of this embodiment, reference may be made to the relevant description of the embodiment shown in fig. 2, so as to avoid repeated description, and this embodiment is not described again. In this embodiment, the overhead of system information can also be reduced.

The embodiments described in the above examples are illustrated below by way of a number of examples:

example 1:

the example is exemplified by a process of performing on-demand system information broadcast transmission through a random access process under the condition that the idle/inactive UE receives only the broadcast cycle of the on-demand system information, and the specific working flow is as follows:

step 1, the idle/inactive UE1 receives system information periodically broadcast and transmitted by the network side device, where the system information only includes a broadcast period of the system information as needed.

Step 2, the system information required by the UE1 is SIB3 and SIB4, and the system information request message on demand is sent through the random access procedure, that is, the Msg3 of the random access procedure includes the system information request message on demand, and the system information list on demand is { SIB3, SIB4 }.

And step 3, the network side equipment broadcasts and transmits the system information response message on demand when the next system information broadcasting period on demand arrives according to the system information request message on demand sent by the UE1 and the system information on demand which can be provided by the network side equipment, wherein the system information response message on demand contains the system information of SIB3 and SIB4 which can be provided.

Step 4, the UE1 receives the on-demand system information response message when the next on-demand system information broadcasting period arrives, thereby obtaining the system information of SIB3 and SIB 4.

Example 2

The example is illustrated by a system information broadcast sending process that is performed on demand by an uplink signal process when the idle state/non-active UE receives the presence indication of 0 or the presence indication does not occur, and the specific working flow is as follows:

step 1, idle/inactive UE2 and UE3 receive system information periodically broadcast and transmitted by a network side device, wherein the system information comprises a broadcast period of system information on demand, and at the same time, the received presence indication is 0 or no presence indication appears. In addition, the network side device sends a mapping table of Preamble and system information as required through system information sent by periodic broadcast, Preamble1 corresponds to SIB3, Preamble2 corresponds to SIB4, and Preamble3 corresponds to SIB5 and SIB 6.

Step 2, the system information required by the UE2 as needed is SIB3 and SIB4, and then the UE2 sends Preamble1 and Preamble2 to the network side device to indicate its system information request message as needed. The system information required by the UE3 as needed is SIB3 and SIB5, and then the UE3 sends Preamble1 and Preamble3 to the network side device to indicate its system information request message as needed.

And step 3, the network side equipment broadcasts and transmits the system information response message according to the system information request message on demand sent by the 2 UEs and the system information on demand which can be provided by the network side equipment when the next system information on demand broadcasting period arrives, wherein the system information response message on demand contains the system information of SIB3, SIB4, SIB5 and SIB6 which can be provided. Specifically, the network side device uses the PDCCH scrambled by the SI-RNTI to schedule the system information response message as required.

Step 4, UE2 and UE3 receive the on-demand system information response message when the next on-demand system information broadcast cycle arrives. In particular, UE2 and UE3 are addressed by SI-RNTI. The UE2 obtains the system information of SIB3 and SIB4 from the on-demand system information response message, and the UE3 obtains the system information of SIB3 and SIB5 from the on-demand system information response message.

Example 3

The example is exemplified by a process of performing on-demand system information broadcast transmission when the idle/inactive UE receives a presence indication of 1 or true, and the specific work flow is as follows:

step 1, the idle/inactive UE4 receives system information periodically broadcast and transmitted by the network side device, where the system information includes a broadcast period of the system information on demand, and the received presence indication is 1 or true.

And step 2, the network side equipment broadcasts and transmits the system information response message on demand when the next system information broadcasting period on demand arrives, wherein the system information response message comprises SIB3, SIB4, SIB5 and SIB6 which can be provided. Specifically, the network side device uses the PDCCH scrambled by the SI-RNTI to schedule the system information response message as required.

Step 3, the UE4 receives the on-demand system information response message when the next on-demand system information broadcast cycle arrives. In particular, the UE4 is addressed by SI-RNTI. The UE4 obtains the system information of SIB3, SIB4, SIB5, and SIB6 from the on-demand system information response message. The UE4 checks whether the system information SIB5 and SIB6 that the UE4 needs are included, and the UE4 already acquires the required system information due to the inclusion.

Example 4:

the example illustrates an on-demand system information broadcast sending process performed when the connected UE receives the on-demand system information list, and the specific work flow is as follows:

step 1, the connected UE5 receives system information periodically broadcast by the network side device, wherein the system information includes a broadcast period of the on-demand system information, and receives a list of the on-demand system information { SIB3, SIB4, SIB5, SIB6 }. In addition, the UE5 has saved a system information table (SI table).

Step 2, the UE5 checks whether the system information SIB3 and SIB4 required by the UE itself are included, so that the UE5 can acquire the required system information when the next system information broadcasting period as required arrives.

And 3, the network side equipment broadcasts and sends the system information response message according to the requirement when the next system information broadcasting period according to the requirement arrives, wherein the system information response message comprises the system information table indexes (SItable indexes) of SIB3, SIB4, SIB5 and SIB6 which can be provided. Specifically, the network side device uses the PDCCH scrambled by the SI-RNTI to schedule the system information response message as required.

Step 4, the UE5 receives the on-demand system information response message when the next on-demand system information broadcast cycle arrives. In particular, the UE5 is addressed by SI-RNTI. The UE5 obtains the system information table indexes of SIB3 and SIB4 from the on-demand system information response message, and can search the system information table to find the corresponding SIB content.

Example 5

Example five:

for this example, the idle/inactive UE2 and the UE perform the on-demand system information broadcast sending process through the uplink signal process when receiving the presence indication of 0 or no presence indication, and the idle/inactive UE4 performs the on-demand system information broadcast sending process when receiving the presence indication of 1 or true, where fig. 4 is a schematic diagram of on-demand system information broadcast sending, and a specific work flow is as follows:

step 1, idle/inactive UE2 and UE3 receive system information periodically broadcast and transmitted by network side equipment, wherein the system information comprises a broadcast period of system information on demand, and no presence indication occurs. Further, the broadcasting period of the on-demand system information is 3 times the period of the system information that is periodically broadcast. In addition, the network side device sends a mapping table of Preamble and system information as required through system information sent by periodic broadcast, Preamble1 corresponds to SIB3, Preamble2 corresponds to SIB4, and Preamble3 corresponds to SIB5 and SIB 6.

And step 3, the network side equipment broadcasts and transmits the system information response message according to the system information request message on demand sent by the 2 UEs and the system information on demand which can be provided by the network side equipment when the next system information on demand broadcasting period arrives, wherein the system information response message on demand contains the system information of SIB3, SIB4, SIB5 and SIB6 which can be provided.

Step 4, the idle/inactive UE4 receives the system information periodically broadcast and sent by the network side device, where the system information includes the broadcast period of the system information on demand, and the received presence indication is true.

And step 5, the network side equipment broadcasts and transmits the system information response message on demand when the next system information broadcasting period on demand arrives, wherein the system information response message comprises SIB3, SIB4, SIB5 and SIB6 which can be provided. Specifically, the network side device uses the PDCCH scrambled by the SI-RNTI to schedule the system information response message as required.

Step 6, UE2, UE3, and UE4 receive the on-demand system information response message when the next on-demand system information broadcast cycle arrives. In particular, UE2, UE3, and UE4 are addressed by SI-RNTI. The UE2 obtains the system information of SIB3 and SIB4 from the on-demand system information response message, and the UE3 obtains the system information of SIB3 and SIB5 from the on-demand system information response message. The UE4 obtains the system information of SIB3, SIB4, SIB5, and SIB6 from the on-demand system information response message. The UE4 checks whether the system information SIB5 and SIB6 that the UE4 needs are included, and the UE4 already acquires the required system information due to the inclusion.

Referring to fig. 5, an embodiment of the present invention provides a user terminal, as shown in fig. 5, a user terminal 500 includes:

a first obtaining module 501, configured to obtain broadcast cycle information of system information on demand of a network device;

a second obtaining module 502, configured to obtain, according to the broadcast period information, on-demand system information sent by the network side device.

Optionally, the second obtaining module 502 is configured to receive system information periodically broadcast by the network side device, where the periodically broadcast system information includes broadcast period information of the on-demand system information.

Optionally, the broadcast period information includes:

Optionally, as shown in fig. 6, the user terminal 500 further includes:

a sending module 503, configured to send an on-demand system information request message to the network side device, where the on-demand system information request message is used to request on-demand system information required by the user terminal;

the second obtaining module 502 is configured to receive an on-demand system information response message sent by the network side device when a next on-demand system information broadcast cycle arrives.

Optionally, the on-demand system information response message includes a system information table index, and the second obtaining module 502 is further configured to search the on-demand system information corresponding to the system information table index from the stored system information table;

Optionally, the sending module 503 is configured to send, to the network side device, a system information request message as needed if the user terminal receives only the broadcast period information; or

The sending module 503 is configured to send an on-demand system information request message to the network side device if the broadcast indication information received by the user terminal indicates that no on-demand system information broadcast is sent when the broadcast period of the next on-demand system information is reached; or

The sending module 503 is configured to send an on-demand system information request message to the network side device if the broadcast indication information received by the user terminal indicates that an on-demand system information broadcast is sent when a broadcast period of next on-demand system information arrives, but the user terminal does not receive the on-demand system information required by the user terminal in the broadcast period; or

The sending module 503 is configured to send an on-demand system information request message to the network side device if the on-demand system information that is broadcast and sent when the broadcast indication information received by the user terminal indicates that the broadcast cycle of the next on-demand system information arrives does not include the on-demand system information that is required by the user terminal.

Optionally, the sending module 503 is configured to send an on-demand system information request message to the network side device through a message 3Msg3 in a random access process; or

The sending module 503 is configured to send an on-demand system information request message to the network side device through an RRC message; or

The sending module 503 is configured to send an on-demand system information request message to the network side device through the MAC CE.

Optionally, as shown in fig. 7, the user terminal 500 further includes:

a third obtaining module 504, configured to obtain mapping relationship information between the uplink signal and the on-demand system information;

the sending module 503 is configured to send an uplink signal to the network side device, where the uplink signal has a mapping relationship with the system information required by the user terminal.

Optionally, the second obtaining module 502 is configured to, if the broadcast indication information indicates that a next broadcast period of the on-demand system information arrives, send the on-demand system information in a broadcast manner, and receive the on-demand system information sent in a broadcast manner by the network side device when the next broadcast period of the on-demand system information arrives, where:

It should be noted that, in this embodiment, the user terminal 500 may be a user terminal in any implementation manner in the method embodiment of the present invention, and any implementation manner of the user terminal in the method embodiment of the present invention may be implemented by the user terminal 500 in this embodiment, and the same beneficial effects are achieved, and details are not described here.

Referring to fig. 8, an embodiment of the present invention provides a network-side device, and as shown in fig. 8, a network-side device 800 includes:

a first broadcasting module 801, configured to periodically broadcast system information, where the periodically broadcast system information includes broadcast period information of system information on demand of the network-side device;

a second broadcasting module 802, configured to broadcast and send the system information of the network side device on demand according to the broadcast period information.

Optionally, the broadcast period information includes:

Optionally, as shown in fig. 9, the network-side device 800 further includes:

a receiving module 803, configured to receive an on-demand system information request message sent by a user terminal, where the on-demand system information request message is used to request on-demand system information required by the user terminal;

the second broadcasting module 802 is configured to broadcast and send an on-demand system information response message when a next on-demand system information broadcasting period arrives.

Optionally, the receiving module 803 is configured to receive an on-demand system information request message sent by the user terminal if the user terminal only receives the broadcast period; or

The receiving module 803 is configured to receive an on-demand system information request message sent by the user terminal if the broadcast indication information received by the user terminal indicates that no on-demand system information broadcast is sent when a broadcast period of next on-demand system information arrives; or

The receiving module 803 is configured to receive an on-demand system information request message sent by the user terminal if the broadcast indication information received by the user terminal indicates that an on-demand system information broadcast is sent when a broadcast period of next on-demand system information arrives, but the user terminal does not receive the on-demand system information required by the user terminal in the broadcast period; or

The receiving module 803 is configured to receive an on-demand system information request message sent by the user terminal if the on-demand system information broadcasted when the broadcast indication information received by the user terminal indicates that the broadcast period of the next on-demand system information arrives does not include the on-demand system information required by the user terminal.

Optionally, the receiving module 803 is configured to receive an on-demand system information request message sent by the user terminal through 3Msg3 of a random access process; or

The receiving module 803 is configured to receive an on-demand system information request message sent by the user equipment through an RRC message; or

The receiving module 803 is configured to receive an on-demand system information request message sent by the user equipment through the MAC CE.

the receiving module 803 is configured to receive an uplink signal sent by the user terminal, where the uplink signal has a mapping relationship with system information required by the user terminal.

It should be noted that, in this embodiment, the network-side device 800 may be a network-side device according to any implementation manner in the method embodiment of the present invention, and any implementation manner of the network-side device in the method embodiment of the present invention may be implemented by the network-side device 800 in this embodiment, so as to achieve the same beneficial effects, and details are not described here again.

Referring to fig. 10, an embodiment of the present invention provides another structure of a user terminal, where the user terminal includes: a processor 1000, a transceiver 1010, a memory 1020, a user interface 1030, and a bus interface, wherein:

the processor 1000, which is used to read the program in the memory 1020, executes the following processes:

acquiring broadcast cycle information of system information of network side equipment as required;

and acquiring the system information on demand sent by the network side equipment according to the broadcast period information through a transceiver 1010.

Among other things, a transceiver 1010 for receiving and transmitting data under the control of the processor 1000.

In fig. 10, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 1000 and memory represented by memory 1020. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1010 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The user interface 1030 may also be an interface capable of interfacing with a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 1000 is responsible for managing the bus architecture and general processing, and the memory 1020 may store data used by the processor 1000 in performing operations.

Optionally, the obtaining a broadcast period of the system information on demand of the network side device includes:

receiving, by a transceiver 1010, system information periodically broadcast by the network-side device, where the periodically broadcast system information includes a broadcast period of the on-demand system information.

Optionally, the broadcast period information includes:

Optionally, the processor 1000 is further configured to:

sending an on-demand system information request message to the network side device through a transceiver 1010, where the on-demand system information request message is used to request on-demand system information required by the user terminal;

the acquiring, according to the broadcast cycle information, on-demand system information sent by the network side device includes:

and receiving, by the transceiver 1010, an on-demand system information response message sent by the network side device when a next on-demand system information broadcast cycle arrives.

Optionally, the sending an on-demand system information request message to the network side device includes:

if the user terminal only receives the broadcast cycle information, sending a system information request message on demand to the network side equipment through a transceiver 1010; or

If the broadcast indication information received by the user terminal indicates that the next on-demand system information broadcast cycle arrives and no on-demand system information broadcast is sent, sending an on-demand system information request message to the network side device through the transceiver 1010; or

If the broadcast indication information received by the user terminal indicates that the next on-demand system information broadcast period arrives, the on-demand system information broadcast is sent, but the user terminal does not receive the on-demand system information required by the user terminal in the broadcast period, the on-demand system information request message is sent to the network side equipment through the transceiver 1010; or

If the on-demand system information broadcasted and transmitted when the broadcast indication information received by the user terminal indicates that the broadcast period of the next on-demand system information arrives does not include the on-demand system information required by the user terminal, an on-demand system information request message is transmitted to the network side device through the transceiver 1010.

sending an on-demand system information request message to the network side device at message 3 of a random access procedure through a transceiver 1010; or

Sending an on-demand system information request message to the network side device in an RRC message through the transceiver 1010; or

An on-demand system information request message is sent at the MAC CE to the network side device via transceiver 1010.

Optionally, the processor 1000 is further configured to:

acquiring mapping relation information of an uplink signal and system information as required;

the sending of the system information request message on demand to the network side device includes:

and sending an uplink signal to the network side device through a transceiver 1010, where the uplink signal has a mapping relationship with the system information required by the user terminal as needed.

Optionally, the acquiring, according to the broadcast period, the system information on demand sent by the network side device includes:

if the broadcast indication information indicates that the next on-demand system information broadcast cycle arrives, the on-demand system information broadcast is sent, and the transceiver 1010 receives the on-demand system information broadcast by the network side device when the next on-demand system information broadcast cycle arrives, wherein:

Optionally, after sending the on-demand system information request message to the network side device, the method further includes:

It should be noted that, in this embodiment, the user terminal may be a user terminal in any implementation manner in the method embodiment of the present invention, and any implementation manner of the user terminal in the method embodiment of the present invention may be implemented by the user terminal in this embodiment, and the same beneficial effects are achieved, and details are not described here.

Referring to fig. 11, a structure of a network side device is shown, the network side device includes: a processor 1100, a transceiver 1110, a memory 1120, a user interface 1130, and a bus interface, wherein:

the processor 1100, which reads the program in the memory 1120, performs the following processes:

system information periodically broadcasted through the transceiver 1110, wherein the periodically broadcasted system information includes broadcast period information of system information of the network-side device on demand;

and broadcasting and transmitting the system information of the network side device on demand according to the broadcasting period information through the transceiver 1110.

Among other things, the transceiver 1110 is used for receiving and transmitting data under the control of the processor 1100.

In FIG. 11, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 1100, and various circuits of memory, represented by memory 1120, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1110 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. For different user devices, the user interface 1130 may also be an interface capable of interfacing with a desired device, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 1100 is responsible for managing the bus architecture and general processing, and the memory 1120 may store data used by the processor 1100 in performing operations.

Optionally, the broadcast period information includes:

Optionally, the processor 1100:

receiving, by a transceiver 1110, an on-demand system information request message sent by a user terminal, where the on-demand system information request message is used to request on-demand system information required by the user terminal;

the broadcasting and sending the system information of the network side equipment according to the broadcasting period information comprises the following steps:

the on-demand system information response message is broadcast by the transceiver 1110 when the next on-demand system information broadcast cycle arrives.

Optionally, the receiving an on-demand system information request message sent by the user terminal includes:

if the ue only receives the broadcast period information, the transceiver 1110 receives an on-demand system information request message sent by the ue; or

If the broadcast indication information received by the ue indicates that the next on-demand system information broadcast period arrives without on-demand system information broadcast transmission, then receive an on-demand system information request message sent by the ue through the transceiver 1110; or

If the broadcast indication information received by the ue indicates that an on-demand system information broadcast is sent when a next on-demand system information broadcast period arrives, but the ue does not receive the on-demand system information required by the ue in the broadcast period, then the on-demand system information request message sent by the ue is received through the transceiver 1110; or

If the on-demand system information broadcasted when the broadcast indication information received by the ue indicates that the broadcast period of the next on-demand system information arrives does not include the on-demand system information required by the ue, the on-demand system information request message sent by the ue is received through the transceiver 1110.

receiving, by the transceiver 1110, an on-demand system information request message sent by the user terminal through 3Msg3 of a random access procedure; or

Receiving, by the transceiver 1110, an on-demand system information request message transmitted by the user terminal through an RRC message; or

The system information request message on demand transmitted by the user terminal through the MAC CE is received through the transceiver 1110.

the receiving of the on-demand system information request message sent by the user terminal includes:

an uplink signal sent by the ue is received through the transceiver 1110, where the uplink signal has a mapping relationship with the system information required by the ue as needed.

It should be noted that, in this embodiment, the network-side device may be a network-side device in any implementation manner in the method embodiment of the present invention, and any implementation manner of the network-side device in the method embodiment of the present invention may be implemented by the network-side device in this embodiment, so as to achieve the same beneficial effects, and details are not described here.

In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included alone, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the transceiving method according to various embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A method for system information transmission, comprising:

a user terminal acquires broadcast cycle information of system information of network side equipment as required;

the user terminal acquires system information on demand sent by the network side equipment according to the broadcast period information;

the user terminal receives the on-demand system information response message sent by the network side equipment when the next on-demand system information broadcasting period arrives;

the on-demand system information response message includes a system information table index, and the user terminal obtains the on-demand system information sent by the network side device according to the broadcast cycle information, and further includes:

wherein the on-demand system information corresponding to the system information table index includes all or part of the on-demand system information required by the user terminal, or does not include the system information required by the user terminal.

2. The method of claim 1, wherein the step of the user terminal acquiring the broadcast cycle information of the on-demand system information of the network side device comprises:

3. The method of claim 2, wherein the periodically broadcasted system information further comprises broadcast indication information of the on-demand system information.

4. The method of claim 3, wherein the broadcast indication information indicates whether an on-demand system information broadcast is transmitted when a next on-demand system information broadcast period arrives.

5. The method of claim 3, wherein the broadcast indication information is used to indicate which on-demand system information will be broadcast when a next broadcast period of on-demand system information arrives.

6. The method of claim 5, wherein the broadcast indication information indicates which on-demand system information will be broadcast when a next broadcast period of on-demand system information arrives in a form of an index list or a bitmap.

7. The method of any of claims 1 to 6, wherein the broadcasting period information comprises:

8. The method of claim 1, wherein the on-demand system information response message includes all or part of the on-demand system information required by the user terminal, or the on-demand system information response message does not include the system information required by the user terminal;

9. The method of claim 1, wherein the on-demand system information response message includes a system information table index, and the ue acquires the on-demand system information sent by the network side device according to the broadcast period information, further comprising:

the on-demand system information corresponding to the system information table index further includes all or part of on-demand system information required by other user terminals, or the on-demand system information corresponding to the system information table index does not include on-demand systems required by other user terminals.

10. The method of claim 1, wherein the user terminal sending an on-demand system information request message to the network side device comprises:

11. The method of claim 1, wherein the user terminal sending an on-demand system information request message to the network side device comprises:

the user terminal sends a system information request message as required to the network side equipment through a message 3Msg3 in a random access process; or

And the user terminal sends a system information request message on demand to the network side equipment through a Media Access Control (MAC) channel unit (CE).

12. The method of claim 1, wherein the system information request message includes an information list of on-demand system information required by the user terminal.

13. The method of claim 1, wherein the method further comprises:

14. The method of claim 3, wherein the step of the user terminal acquiring the on-demand system information sent by the network side device according to the broadcast cycle information comprises:

the system information on demand broadcast and sent by the network side equipment comprises all or part of the system information on demand required by the user terminal or does not comprise the system information required by the user terminal;

15. The method of claim 1, wherein after the user terminal sends an on-demand system information request message to the network-side device, the method further comprises:

16. A method for system information transmission, comprising:

the network side equipment broadcasts and sends the system information of the network side equipment according to the broadcasting period information;

the network side equipment broadcasts and sends the system information response message according to the requirement when the broadcast period of the next system information according to the requirement arrives;

the on-demand system information response message comprises a system information table index so that the user terminal searches the on-demand system information corresponding to the system information table index from the stored system information table;

17. The method of claim 16, wherein the periodically broadcasted system information further comprises broadcast indication information of the on-demand system information.

18. The method of claim 17, wherein the broadcast indication information indicates whether an on-demand system information broadcast is transmitted when a next on-demand system information broadcast period arrives.

19. The method of claim 17, wherein the broadcast indication information indicates which on-demand system information will be broadcast when a next broadcast period of on-demand system information arrives.

20. The method of claim 19, wherein the broadcast indication information indicates which on-demand system information will be broadcast when a next broadcast period of on-demand system information arrives in the form of an index list or a bitmap.

21. The method of any one of claims 16 to 20, wherein the broadcasting period information comprises:

22. The method of claim 16, wherein the on-demand system information response message includes all or part of the on-demand system information required by the user terminal, or the on-demand system information response message does not include the system information required by the user terminal;

23. The method of claim 16, wherein the on-demand system information corresponding to the system information table index further includes all or part of on-demand system information required by other user terminals, or the on-demand system information corresponding to the system information table index does not include on-demand systems required by other user terminals.

24. The method of claim 17, wherein the network side device receives an on-demand system information request message sent by a user terminal, and the method comprises:

25. The method of claim 16, wherein the network side device receives an on-demand system information request message sent by a user terminal, and the method comprises:

26. The method of claim 16, wherein the system information request message includes an information list of on-demand system information required by the user terminal.

27. The method of claim 16, wherein the periodically broadcasted system information further includes mapping relationship information of an uplink signal and on-demand system information;

the network side equipment receives the system information request message which is sent by the user terminal and is required, and the method comprises the following steps:

28. A user terminal, comprising:

a second obtaining module, configured to obtain, according to the broadcast period information, on-demand system information sent by the network side device;

the second obtaining module is configured to receive an on-demand system information response message sent by the network side device when a next on-demand system information broadcast cycle arrives;

the on-demand system information response message comprises a system information table index, and the second acquisition module is further used for searching the on-demand system information corresponding to the system information table index from the stored system information table from the user terminal;

29. The ue of claim 28, wherein the second obtaining module is configured to receive system information periodically broadcasted by the network-side device, and the periodically broadcasted system information includes broadcast period information of the on-demand system information.

30. The user terminal of claim 28, wherein the periodically broadcasted system information further comprises broadcast indication information of the on-demand system information.

31. The ue of claim 30, wherein the broadcast indication information indicates whether an on-demand system information broadcast is transmitted when a next on-demand system information broadcast period arrives.

32. The ue of claim 30, wherein the broadcast indication information is used to indicate which on-demand system information will be broadcast when a next on-demand system information broadcast period arrives.

33. The ue of claim 32, wherein the broadcast indication information indicates which on-demand system information will be broadcast when a next on-demand system information broadcast period arrives in the form of an index list or a bitmap.

34. The user terminal of any of claims 28 to 33, wherein the broadcast period information comprises:

35. The ue of claim 28, wherein the on-demand system information response message includes all or part of on-demand system information required by the ue, or the on-demand system information response message does not include system information required by the ue;

36. The ue of claim 28, wherein the on-demand system information corresponding to the system information table index further includes all or part of on-demand system information required by other ues, or the on-demand system information corresponding to the system information table index does not include on-demand systems required by other ues.

37. The ue of claim 32, wherein the sending module is configured to send an on-demand system information request message to the network side device if the ue receives only the broadcast period information; or

38. The user terminal of claim 28, wherein the second obtaining module is configured to send an on-demand system information request message to the network-side device through a message 3Msg3 of a random access procedure; or

39. The user terminal of claim 28, wherein the system information request message includes an information list of on-demand system information required by the user terminal.

40. The user terminal of claim 28, wherein the user terminal further comprises:

41. The ue of claim 30, wherein the second obtaining module is configured to broadcast and transmit the on-demand system information if the broadcast indication information indicates that a broadcast period of the next on-demand system information arrives, and receive the on-demand system information broadcast and transmitted by the network-side device when the broadcast period of the next on-demand system information arrives, where:

42. The ue of claim 28, wherein if the ue does not receive the feedback returned from the network side device in the next on-demand system information broadcasting period, the ue performs the next on-demand system information broadcasting transmission process.

43. A network-side device, comprising:

the second broadcasting module is used for broadcasting and sending the system information of the network side equipment according to the broadcasting period information;

the second broadcasting module is used for broadcasting and sending the system information response message on demand when the broadcasting period of the next system information on demand arrives;

44. The network-side device of claim 43, wherein the periodically broadcasted system information further comprises broadcast indication information of the on-demand system information.

45. The network-side device of claim 44, wherein the broadcast indication information is used to indicate whether an on-demand system information broadcast is transmitted when a next on-demand system information broadcast period arrives.

46. The network-side device of claim 44, wherein the broadcast indication information is used to indicate which on-demand system information will be broadcast when a next broadcast period of on-demand system information arrives.

47. The network-side device of claim 46, wherein the broadcast indication information indicates in an index list or bitmap manner which on-demand system information will be broadcast when a next broadcast period of on-demand system information arrives.

48. The network-side device of any one of claims 43-47, wherein the broadcast period information comprises:

49. The network-side device of claim 43, wherein the on-demand system information response message includes all or part of the on-demand system information required by the user terminal, or the on-demand system information response message does not include the system information required by the user terminal;

50. The network-side device of claim 43, wherein the on-demand system information corresponding to the system information table index further includes all or part of on-demand system information required by other user terminals, or the on-demand system information corresponding to the system information table index does not include on-demand systems required by other user terminals.

51. The network-side device of claim 43, wherein the receiving module is configured to receive an on-demand system information request message sent by the user terminal if the user terminal only receives the broadcast period; or

52. The network-side device of claim 43, wherein the receiving module is configured to receive an on-demand system information request message sent by the user terminal through 3Msg3 of a random access procedure; or

53. The network-side device of claim 43, wherein the system information request message includes an information list of on-demand system information required by the user terminal.

54. The network-side device of claim 43, wherein the periodically broadcasted system information further includes mapping relationship information of uplink signals and on-demand system information;