CN110351782B

CN110351782B - System information broadcasting method and device and network equipment

Info

Publication number: CN110351782B
Application number: CN201810303890.1A
Authority: CN
Inventors: 许萌
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2018-04-04
Filing date: 2018-04-04
Publication date: 2022-08-12
Anticipated expiration: 2038-04-04
Also published as: TWI755588B; WO2019192419A1; CN110351782A; TW201943296A

Abstract

The invention provides a system information broadcasting method, a device and network equipment, wherein the system information broadcasting method comprises the following steps: and broadcasting the system information to the connected-state terminal on the non-initial part of the bandwidth. The scheme provides a specific broadcasting method; broadcast of system information over non-initial BWPs is enabled.

Description

System information broadcasting method and device and network equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, and a network device for broadcasting system information.

Background

In a new generation wireless communication system (5G or an air interface NR system), the network bandwidth may be much larger than the terminal transmission bandwidth, so that a concept of a partial Bandwidth (BWP) is introduced, and a cell carrier bandwidth may be divided into a plurality of BWPs. The base station can configure multiple BWPs for the UE through dedicated signaling, and the Rel-15 release UE can only have one active uplink BWP and one active downlink BWP. The active BWP may be different from an initial BWP (initial BWP) that may periodically broadcast system information. The connected UE may obtain the system information by receiving broadcasted system information or by dedicated signaling, for example, by obtaining the system information through a handover command. For system information update, RAN2#101 conference, for connected UE, if active BWP provides broadcasted system information, the connected UE acquires system information at the active BWP. For non-initial BWPs, how the network broadcasts system information is left to be solved.

Disclosure of Invention

The present invention provides a method, an apparatus and a network device for broadcasting system information, which solve the problem of the prior art regarding to the method for broadcasting system information on non-initial BWP that is not yet defined.

In order to solve the above technical problem, an embodiment of the present invention provides a system information broadcasting method, applied to a network device, including:

and broadcasting the system information to the connected-state terminal on the non-initial part of the bandwidth.

Optionally, the system information includes:

a master information block, and/or

System information block 1, and/or

System information based on terminal requests, and/or

Presetting all system information block groups or system information blocks in the system information set, or presetting updated system information block groups or system information blocks in the system information set;

the preset system information set is a set containing all system information, or a system information set required by a terminal to access a network, or a system information set configured for the non-initial part bandwidth by the network, or a required system information set defined for a service provided for the terminal according to the non-initial part bandwidth.

Optionally, the broadcasting of the master information block adopts:

physical downlink control channel scheduling, physical downlink shared channel broadcasting, or

By means of physical downlink control channel carrier, or

The method is used for configuring the temporary physical broadcast channel broadcast.

Optionally, the manners of scheduling the physical downlink control channel and broadcasting the physical downlink shared channel include:

resolving the physical downlink control channel by using different system information Radio Network Temporary Identifiers (RNTI) to obtain the position of scheduling resources broadcasted on the physical downlink shared channel, or

Scheduling broadcast master information blocks using fixed or pre-configured time and/or frequency domain resources, or

Scheduling master information block by system information block 1, or

As an information element of the system information block 1, it is carried by the system information block 1.

Optionally, the broadcast mode of the system information based on the terminal request is as follows:

the bandwidth of the initial part is the same, and a mode of scheduling by a system information block 1 based on a terminal request is adopted; or

Not broadcasting; or

And broadcasting according to the network side requirement without being based on the terminal request.

Optionally, the broadcasting according to the requirement of the network side without the terminal request includes:

broadcasting according to whether or not updating is performed, or

And determining a broadcast system information block or a system information block group according to the service type provided by the non-initial part bandwidth.

Optionally, the broadcast duration is determined by the network device, and the terminal is not notified; or

The broadcast time length is the fixed system information modification period number or the fixed time length, the system information modification period or the fixed time length is specified by a protocol, or is configured by a network side and informs a terminal through broadcast or special signaling.

Optionally, when the broadcast duration is a fixed number of system information modification cycles or a fixed duration:

different system information blocks are configured with different broadcast time lengths; or

And configuring the same number of broadcast system information modification periods or fixed broadcast time length for all the system information.

Optionally, the system information scheduled by the system information block 1 is periodically broadcast in the corresponding system information window, and each system information block or system information block group is sequentially allocated in the sequentially arranged system information windows; and/or

The time domain position of the system information scheduled by the system information block 1 is fixed, the system information block 1 informs the terminal of the broadcasted system information identifier, and the broadcasted system information is scheduled at the fixed time domain position according to the fixed broadcast period; the fixed relationships are pre-configured by the network or specified by the protocol.

Optionally, the system information is repeatedly sent in a corresponding system information broadcast period, and the number of times of repeated sending is:

the same number of times as the number of repeated transmissions in the initial partial bandwidth, or

More times than repeated transmission in the initial part of the bandwidth, or

The configuration is based on the partial bandwidth.

Alternatively to this, the first and second parts may,

configuring a system information window based on the partial bandwidth; and/or

The system information block 1 schedules a system information broadcast period of system information to be configured based on a partial bandwidth; and/or

The system information broadcasting period of the system information block 1 is configured to be the same as the system information broadcasting period of the initial part of the broadband broadcast system information block 1; and/or

The system information broadcasting period of the main information block is the same as that of the initial part of the broadband broadcast main information block; and/or

The system information broadcasting period of the system information block 1 is configured based on a part of the bandwidth; and/or

The system information broadcasting period of the master information block is configured based on the partial bandwidth.

Alternatively to this, the first and second parts may,

the system information is broadcast based on an incremental configuration mode, and the default information element is the information element which keeps the original configuration, or

The system information is broadcast based on a full configuration mode, and the default information elements are unconfigured information elements.

The embodiment of the invention also provides network equipment, which comprises a memory, a processor, a transceiver and a computer program, wherein the computer program is stored on the memory and can run on the processor; the processor implements the following steps when executing the program:

broadcasting system information to connected state terminals over a non-initial portion of bandwidth through the transceiver.

Optionally, the system information includes:

a master information block, and/or

System information block 1, and/or

System information based on terminal requests, and/or

Optionally, the broadcasting of the master information block adopts:

By means of physical downlink control channel carrier, or

Scheduling master information block by system information block 1, or

Not broadcasting; or

And broadcasting according to the requirement of the network side without the terminal request.

broadcasting according to whether or not updating is performed, or

the same number of repeated transmissions of the initial partial bandwidth, or

More times than repeated transmission in the initial part of the bandwidth, or

The configuration is based on the partial bandwidth.

Alternatively to this, the first and second parts may,

configuring a system information window based on the partial bandwidth; and/or

The system information broadcasting period of the system information block 1 is configured to be the same as the system information broadcasting period of the initial part broadband broadcasting system information block 1; and/or

Alternatively to this, the first and second parts may,

Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the system information broadcasting method described above.

The embodiment of the invention also provides a system information broadcasting device, which is applied to network equipment and comprises the following components:

and the broadcasting module is used for broadcasting the system information to the connected terminal on the non-initial part of bandwidth.

Optionally, the system information includes:

a master information block, and/or

System information block 1, and/or

System information based on terminal requests, and/or

Optionally, the broadcasting of the master information block adopts:

By means of physical downlink control channel carrier, or

Scheduling master information block by system information block 1, or

Not broadcasting; or

broadcasting according to whether or not updating is performed, or

the same number of repeated transmissions of the initial partial bandwidth, or

More times than repeated transmission in the initial part of the bandwidth, or

The configuration is based on the partial bandwidth.

Alternatively to this, the first and second parts may,

configuring a system information window based on the partial bandwidth; and/or

Alternatively to this, the first and second parts may,

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

in the above scheme, the system information broadcasting method provides a specific broadcasting method; broadcast of system information over non-initial BWPs is enabled.

Drawings

FIG. 1 is a flow chart of a system information broadcasting method according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of SI pre-configuration according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of SI no pre-configuration according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a network device according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a system information broadcasting 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.

The present invention provides a system information broadcasting method applied to a network device, as shown in fig. 1, for solving the problem of the prior art of the broadcasting method for system information on non-initial BWP that is not yet defined explicitly, including:

step 11: and broadcasting the system information to the connected-state terminal on the non-initial part of the bandwidth.

The system information broadcasting method provided by the embodiment of the invention provides a specific broadcasting method; broadcast of system information over non-initial BWPs is enabled.

With respect to the broadcasted content, the system information includes: a master information block, and/or a system information block 1, and/or system information based on a terminal request, and/or all system information block groups or system information blocks in a preset system information set, or updated system information block groups or system information blocks in the preset system information set; the preset system information set is a set containing all system information, or a system information set required by a terminal to access a network, or a system information set configured for the non-initial part bandwidth by the network, or a required system information set defined for a service provided for the terminal according to the non-initial part bandwidth.

Wherein, the broadcast of the main information block adopts: a physical downlink control channel scheduling, a physical downlink shared channel broadcasting mode, or a mode carried by a physical downlink control channel, or a mode of configuring a temporary physical broadcast channel broadcasting.

Specifically, the manners of scheduling the physical downlink control channel and broadcasting the physical downlink shared channel include: different system information Radio Network Temporary Identifiers (RNTI) are used for analyzing a physical downlink control channel to obtain a scheduling resource position broadcasted on a physical downlink shared channel, or a fixed or pre-configured time domain and/or frequency domain resource is used for scheduling and broadcasting a main information block, or the main information block is scheduled by a system information block 1, or is taken as an information element of the system information block 1 and carried by the system information block 1.

The broadcasting mode of the system information based on the terminal request is as follows: the bandwidth of the initial part is the same, and a mode of scheduling by a system information block 1 based on a terminal request is adopted; or not broadcast; or broadcasting according to the requirement of the network side without the request of the terminal.

Specifically, the broadcasting according to the network side requirement without the terminal request includes: and determining a system information block or a system information block group to be broadcasted according to whether the service is updated or not, or according to the service type provided by the non-initial part bandwidth.

In the embodiment of the invention, the broadcast time length is determined by the network equipment and is not informed to the terminal; or the broadcast time length is the fixed system information modification period number or the fixed time length, the system information modification period or the fixed time length is specified by a protocol, or the system information modification period or the fixed time length is configured by a network side and is notified to a terminal through broadcast or special signaling.

Specifically, when the broadcast duration is a fixed number of system information modification cycles or a fixed duration: different system information blocks are configured with different broadcast time lengths; or the number of broadcast system information modification periods or the fixed broadcast time length with the same system information configuration.

Regarding the time domain position of broadcasting, the system information scheduled by the system information block 1 is periodically broadcasted in the corresponding system information window, and each system information block or system information block group is sequentially distributed in the system information windows which are sequentially arranged; and/or the time domain position of the system information scheduled by the system information block 1 is fixed, the system information block 1 informs the terminal of the broadcasted system information identifier, and the broadcasted system information is scheduled at the fixed time domain position according to the fixed broadcast period; the fixed relationships are pre-configured by the network or specified by the protocol.

Wherein the system information window is configured based on a portion of the bandwidth; and/or the system information broadcast period of the scheduling system information of the system information block 1 is configured based on partial bandwidth; and/or

The system information broadcasting period of the system information block 1 is configured to be the same as the system information broadcasting period of the initial part of the broadband broadcast system information block 1; and/or the system information broadcasting period of the master information block is the same as the system information broadcasting period of the initial part of the broadband broadcast master information block; and/or

The system information broadcasting period of the system information block 1 is configured based on a part of the bandwidth; and/or the system information broadcast period of the master information block is configured based on the partial bandwidth.

In the embodiment of the present invention, the system information is repeatedly transmitted in a corresponding system information broadcast period, and the number of times of repeated transmission is: the number of repeated transmissions in the initial partial bandwidth is the same as or greater than the number of repeated transmissions in the initial partial bandwidth, or is configured based on the partial bandwidth.

In order to further save signaling overhead, in the embodiment of the present invention, the system information is broadcast based on an incremental configuration mode, and the default information element is an information element that maintains an original configuration, or the system information is broadcast based on a full configuration mode, and the default information element is an information element that is not configured.

In addition to the above features provided by the embodiment of the present invention, which are consistent with the measures taken on the initial part of bandwidth, the present invention has the effects of reducing the overhead of air interface signaling and improving the reliability of the UE for acquiring system information.

The system information broadcasting method provided by the embodiment of the present invention is further described below.

In view of the above technical problems, considering that an initial BWP needs to provide access configuration information of the local cell for idle or inactive (idle or inactive) UEs, a non-initial BWP only provides services for connected UEs, and the connected UEs have system information used by the current cell, and due to the specificity of the serving UEs, the method for broadcasting the system information by the non-initial BWP may be different from that of the initial BWP, so as to save more resources for providing service data transmission for the UEs; wherein, mainly relate to following several aspects:

first aspect-broadcast content:

unlike the initial BWP, the serving UE of the non-initial BWP has the system information used by the current cell, so the non-initial BWP can broadcast the system information in a manner of saving more air interface resources, only broadcast the updated system information block SIB or system information block set SI, or only broadcast the information element IE of the updated system information.

The broadcasted SIB or SI may contain at least one of:

MIB, and/or

SIB1 (System information Block 1), and/or,

-based on system information (on-demand SI) requested by the UE, and/or,

all SIBs or SIs in a set of SIBs or SIs, which may be all system information, or a set of system information specified by a protocol, or a set of system information configured by the network for the BWP, and which may define the SIBs or SIs that must be provided for the service provided by the UE according to the BWP, regardless of whether the system information is updated or not. For example, the BWP provides the V2X service for the UE, the V2X configures all SIBs or SIs related to the corresponding system information, or,

a SIB or updated SIB/SI in a set of SIBs or SIs, which may be all system information, a set of system information specified by a protocol, or a set of system information configured by the network for the BWP. For example, the set in the current BWP of the network configuration contains SIB2 (system information block 2), SIB3 (system information block 3), SIB12 (system information block 12), the set broadcasts SIB2 only if the network has updated SIB2 only, or the SI in which SIB2 is located, other SIBs or SIs in the set are not broadcast,

the configuration mode is as follows:

the network broadcasts the updated IE in a delta configuration (incremental configuration) manner, and if the IE belonging to the optional attribute in the SIB or the SI is not changed, the broadcasted IE is not carried in the system message, and the UE side considers that the IE not carried by the network side maintains the original configuration after receiving the message. Or the like, or, alternatively,

the network broadcasts the system information in full configuration (full configuration), whether the IE changes or not, the network side broadcasts the configured IE, and if the IE which is not configured exists after the UE receives the system information, the UE considers that the IE is not configured and configures according to a default processing mode fixed by the IE.

Second aspect-on-demand SI broadcast mode:

the on-demand SI in the Initial BWP is broadcasted by the network according to the UE request, the SIB1 will carry an explicit indication to indicate whether the SIB or SI is broadcasted in the system information modification period, and in the non-Initial BWP system, the on-demand SI may use the same broadcasting method as the Initial BWP, or may determine whether to broadcast according to the BWP characteristics or whether the SIB or SI is updated. For example, if the BWP provides service for UEs with special service, such as V2X service, the SIB with V2X related configuration may be the SIB that the BWP must broadcast, but the SIB is broadcast in the initial BWP in an on-demand manner.

The same as initial BWP, with UE request based scheduling decision by SIB1, or,

-not broadcasting, or,

not based on UE requests, the network broadcasts on demand:

(1) depending on whether the update is being made, or,

(2) it is decided whether to broadcast certain SIBs or SIs according to the service type provided by the BWP.

Third aspect-broadcast mode of master information block MIB:

in the Initial BWP, the UE reads the MIB to obtain the location of the control resource set CORESET of SIB1, so as to further obtain the broadcast information of SIB1, and the CORESET location of the non-Initial BWP SIB1 can be provided to the connected UE through dedicated signaling, i.e. the UE can obtain the CORESET location of SIB1 without passing through the MIB, and the obtaining of the MIB can be different from the Initial BWP:

as a separate system information block, scheduled by SIB1, broadcast by the physical downlink shared channel, PDSCH, as well as other SIBs; or

As message content in other SIBs, e.g. putting MIB in SIB1, which is broadcast only when non-initial BWP; or

-configuring a periodic PBCH (physical broadcast channel) within the non-initial BWP, MIB being broadcast on the PBCH; or

Introducing a separate Radio Network Temporary Identifier (RNTI), such as a MIB-RNTI (master information block-RNTI) scrambling PDCCH (Physical Downlink Control Channel) carrying scheduling information of the MIB, PDSCH broadcasting, or MIB-RNTI scrambling the message content of the MIB carried by the PDCCH; or

Distributed in a fixed time domain, which is not the same as the scheduling time domain of SIB1 and other system information, scheduled scrambled by SI-RNTI (system information-radio network temporary identity), PDSCH broadcast, or SI-RNTI scrambling the message content of the PDCCH carrying the MIB. Fourth aspect-periodicity of broadcast:

unlike the initial BWP, the UE of the non-initial BWP is the connected UE, and the network does not need to continuously broadcast the System information, but only needs to temporarily broadcast the System information when the System information is updated or there is a PWS (Public Warning System) notification:

the network decides the number of broadcast cycles on its own (based on network implementation), does not inform the UE, or,

the network broadcasts a fixed number of system information modification periods or a fixed duration, which may be protocol-specified, or configured and broadcast by the network side or dedicated signaled to the UE:

(1) different broadcast time lengths are configured for different system information blocks, for example, the MIB may be configured separately, more system information modification periods or broadcast time lengths are broadcast, or,

(2) and configuring the same number of broadcast system information modification periods or fixed broadcast time length for all the system information.

Fifth aspect-time domain location of broadcast:

similar to LTE, MIB and SIB1 are broadcast periodically, NR system also broadcasts MIB and SIB1 periodically, where MIB broadcast period is 80ms, SIB1 broadcast period is 160ms, and in one broadcast period, MIB or SIB1 are also sent repeatedly, and UE may use the same period and repetition mechanism or different periods and repetition mechanisms when broadcasting MIB or SIB1 by non-initial BWP.

SIB1 system information broadcast period:

the system information broadcast period of SIB1 coincides with the system information broadcast period of initial BWP broadcast SIB1, or

The system information broadcast period of SIB1 is configured by the BWP alone,

MIB system information broadcasting period:

the system information broadcasting period of the MIB coincides with the system information broadcasting period of the initial BWP broadcasting the MIB, or

The system information broadcast period of the MIB is realized by SIB1 scheduling, or

The system information broadcasting period of the MIB is separately configured based on BWP.

Number of repeated broadcasts within a broadcast period:

the number of repetitions of SIB1 in the broadcast period may be the same as the number of repetitions in the initial BWP, or may be more than the number of repetitions in the initial BWP, or based on the BWP configuration.

The MIB may be repeated within the broadcast period the same as the initial BWP, based on BWP scheduling, or more than the initial BWP.

The repetition position (the time domain position of the repeated transmission) may have the same calculation method as the initial BWP, or may be a calculation method or a calculation parameter based on the BWP configuration.

PWS and other SIBs:

the time domain location relationship of the system information scheduled by SIB1 is fixed, SIB1 only informs which system information will be broadcast, wherein the resources of the location of the non-broadcasted SIB or SI are flexibly scheduled by the network, the fixed relationship may be network pre-configured, or protocol specified; and/or

Only the system information scheduled by the SIB1 will be allocated into different time domains according to the configured system information window, the system information not scheduled will not have pre-configured time domain resources, or,

system information window length, SIB or SI broadcast period may be the same as the initial BWP configuration or it may be decided by SIB1 scheduling based on BWP configuration.

Taking broadcast SIB2 and SIB5 as examples, SIB1 notifies SIB2 and SIB5 to be broadcasted (SIB1 carries broadcasted system information ID), where for convenience of illustration, SIB2 exists in SI1 (system information block group 1), SIB5 exists in SI4 (system information block group 4), and fig. 2 is a radio frame that broadcasts SI2 and SI4 at the same time:

a method in which the time domain location relationship of the system information scheduled for the SIB1 is fixed is shown in fig. 2.

As shown in fig. 2, where the time domain relationship of the SI broadcast is preconfigured as shown in fig. 2, when only SI1 and SI4 are broadcast, the SIB1 includes a message indicating that SI1 and SI4 are broadcast, where there is system information broadcast in a corresponding window, and other time domain locations, such as SI2, and the time domain location corresponding to SI3 is not system information broadcast but is flexibly scheduled by the network.

A method in which only system information scheduled by the SIB1 is allocated into different time domains according to the configured system information window is shown in fig. 3.

As shown in fig. 3, when only SI1 and SI4 are broadcast, the SIB1 includes the message indicating the broadcast of SI1 and SI4, and the network does not pre-configure the time domain location of the broadcast of each SI, then the network arranges the SI sequence into different SI windows according to the SI scheduling sequence in SIB1, as shown in fig. 3, the SI1 is adjacent to the SI4SI broadcast window.

The scheme provided by the embodiment of the invention is illustrated as follows:

example 1: broadcasted SIB or SI;

(1) the network (network device) decides to update the system information, e.g. update SIB2 or SIB 4;

(2) the network sends paging DCI (paging downlink control information) of system information update notification on non-initial BWP;

(3) after receiving paging DCI, the UE working on non-initial BWP knows that the network will update the system information in the next system information modification period.

(4) The network broadcasts updated system information at the boundary of the next system information modification period, the broadcasted system information comprising:

MIB, and/or

SIB1, and/or,

-on-demand SI requested by the UE, and/or,

all SIBs or SIs in a set of SIBs or SIs, which may be all system information, or a set of system information specified by a protocol, or a set of system information configured by the network for the BWP, and which may define the SIBs or SIs that must be provided for the service provided by the UE according to the BWP, regardless of whether the system information is updated or not. For example, the BWP provides the V2X service to the UE, the V2X configures all SIBs or SIs related to the corresponding system information, and/or,

an updated SIB or SI in a set of SIBs or SIs, where the set may be all system information, or a set of system information defined by a protocol, or a set of system information configured by the network for the BWP, for example, if the set includes SIB2, SIB3, or SIB12 in the current BWP configured by the network, the set only broadcasts SIB2 because only SIB2 is updated, or the SI in which SIB2 is located, and other SIBs or SIs in the set do not broadcast.

(5) And the UE receives the updated system information at the next system information modification period boundary after receiving the paging DCI and stores and takes effect the received system information. If the network only broadcasts updated SIBs or SIs, e.g. SIB2, for SIBs or SIs in a set, e.g. SIB2, SIB3, SIB12, then the UE updates the received SIBs or SIs, e.g. the SI in which SIB2 or SIB2 is located, and other non-broadcasted SIBs, e.g. SIB3 and SIB12, maintain the previous configuration.

Example 2: SIB or SI configuration;

example 2-1: a delta configuration;

(1) network decides to update system information, e.g., update SIB2 or SIB 4;

(2) the network sends a paging DCI of a system information updating notice on a non-initial BWP;

(4) The network broadcasts the updated system information at the boundary of the next system information modification period and the network schedules the broadcast of the contained SIB or SI as per example 1 above. The broadcasted system information is configured according to a delta configuration mode, that is, for the IE with optional attribute, only updated IE is included, for example, SIB2 is included in the broadcasted system information, wherein IE1 in SIB2 is optional attribute, the configuration of the IE is updated from P1 to P2, IE2 is optional attribute, and the configuration is maintained as the original configuration; the broadcasted SIB2 contains IE1 and is configured as P2, and does not contain the configuration of IE 2.

(5) And the UE receives the updated system information at the next system information modification period boundary after receiving the paging DCI and stores and takes effect the received system information. And the UE stores and updates the received system message according to the delta configuration mode, maintains the original configuration for the IE not carried in the system message, and updates the configuration for the received IE. For example, SIB2 updates the configuration of IE1 from P1 to P2, and SIB2 does not contain IE2, so that the original configuration of IE2 is maintained.

Example 2-2: full configuration;

(1) network decides to update system information, e.g., update SIB2 or SIB 4;

(2) the network sends paging DCI of system information update notification on non-initial BWP;

(3) after receiving the paging DCI, the UE working on the non-initial BWP knows that the network will update the system information in the next system information modification period.

(4) The network broadcasts the updated system information at the boundary of the next system information modification period and the network schedules the broadcast of the contained SIB/SI as per example 1 above. The broadcasted system information is configured according to a full configuration mode, that is, all configured IEs are included, for example, SIB2 is included in the broadcasted system information, wherein IE1, IE2 and IE3 in SIB2 are optional attribute IEs, the IE1 configuration of the SIB is updated from P1 to P2, IE2 maintains the original configuration of P3, and IE3 is updated from P4 to be not configured; the broadcasted SIB2 contains IE1 and is configured as P2, and contains IE2 and configuration P3, and does not contain IE 3.

(5) And the UE receives the updated system information at the next system information modification period boundary after receiving the paging DCI and stores and takes effect the received system information. And the UE stores and updates the received system message according to a full configuration mode, considers that the network has no configuration for the IE not carried in the system message, processes the IE according to a default processing mode, and updates the configuration for the received IE. For example, SIB2 stores IE1, IE2 according to the received configuration, IE1 is configured as P2, and IE2 is configured as P3, where SIB2 does not include IE3 in the system message, and then processing is performed in a default manner according to IE3, such as updating to a default value or deleting the configuration.

Example 3: broadcasting mode of MIB;

example 3-1: the SIB1 contains scheduling information of the MIB, which is scheduled by the PDCCH and broadcasted by the PDSCH;

(1) network decision system information update, as described in example 1 above, the network decision broadcasts the MIB;

(3) after receiving paging DCI, the UE working on the non-initial BWP learns that the network will update the system information in the next system information modification period;

(4) the network side broadcasts system information on the non-initial BWP, wherein the scheduling information of SIB1 includes the scheduling information of MIB, the system information broadcast window position and broadcast period of MIB are specified. And the network scrambles the PDCCH by using SI-RNTI at the corresponding time domain position and appoints the position of the PDSCH broadcasted by the MIB.

(5) The UE determines the broadcast window position and the broadcast period of the MIB through the SIB1, and at the corresponding time domain position, the UE uses the SI-RNTI to descramble the corresponding PDCCH to obtain the PDSCH position for broadcasting the MIB, and receives the MIB message at the corresponding position.

The UE may also obtain the time domain location of the PDCCH that schedules the MIB in the following example, which is only given as one possible way.

Example 3-2: MIB is optional IE of other SI, and SIB1 is taken as an example;

(1) network decision System information update, network decision broadcast MIB as described in example 1 above

(4) the network side broadcasts system information on the non-initial BWP, wherein SIB1 includes a configuration message of MIB, that is, SIB1 includes a configuration message with an IE as MIB. When the active BWP is a non-initial BWP, the IE in SIB1 is configured in delta configuration or full configuration.

(5) The UE receives the updated SIB1, reads MIB information therein, and performs storage update.

Examples 3 to 3: SI-RNTI scrambling, fixed time domain location, different from the scheduled location of SIB1 and other SIBs;

(4) the network side broadcasts system information on the non-initial BWP, wherein the broadcast location of the MIB is a fixed temporal location and the temporal location is different from the broadcast locations of SIB1 and other SIBs, and the fixed location can be a fixed location specified by the protocol or a configuration of the network based on different BWPs.

The network scrambles the PDCCH with the SI-RNTI at the time domain location where the MIB is broadcast, where the PDCCH carries the scheduling information that the MIB is broadcast in the PDSCH, or

The network scrambles the PDCCH with the SI-RNTI in the time domain location where the MIB is broadcast, wherein the PDCCH carries the configuration information of the MIB.

(5) And the UE descrambles the PDCCH corresponding to the broadcast MIB by using the SI-RNTI:

-the UE obtains the scheduling information broadcast by the MIB on the PDSCH by descrambling the PDCCH, the UE reads the configuration message of the PDSCH for obtaining the MIB, or

-the UE descrambling the PDCCH to obtain configuration information of the MIB.

And the UE performs storage updating according to the obtained MIB message.

Examples 3 to 4: the new definition of RNTI MIB-RNTI scrambles PDCCH;

(4) the network side broadcasts system information on the non-initial BWP. The network scrambles PDCCH by using MIB specific RNTI (radio network temporary identifier) such as MIB-RNTI at the PDCCH position corresponding to the broadcast MIB:

-wherein the PDCCH carries scheduling information that the MIB is broadcasted in the PDSCH, or

-wherein the PDCCH carries configuration information of MIB.

(5) The UE descrambles and broadcasts the PDCCH corresponding to the MIB by using the MIB-RNTI:

-the UE descrambling the PDCCH to obtain configuration information of the MIB.

And the UE performs storage updating according to the obtained MIB message.

Examples 3 to 5: configuring a periodic PBCH;

(1) the network pre-configures the position and broadcast period of the PBCH to the UE, and the configuration may be protocol specification or BWP-based configuration. When the MIB broadcasting is not carried out, the PBCH position does not take effect, and the network is scheduled normally.

(2) The UE carries out conventional service transmission and does not carry out MIB detection on the pre-configured PBCH.

(3) Network decision system information update, as described in example 1 above, the network decision broadcasts the MIB;

(4) the network sends paging DCI of system information update notification on non-initial BWP;

(5) after receiving paging DCI, the UE working on the non-initial BWP learns that the network will update the system information in the next system information modification period;

(6) the network side broadcasts system information on the non-initial BWP. The network broadcasts the MIB at the preconfigured PBCH location.

(7) And the UE starts to detect the PBCH and acquire the MIB in the next system information modification period after receiving the system information updating indication. And the UE performs storage updating according to the obtained MIB message.

Example 4: an on-demand SI broadcast mode;

(1) network decides to update system information, e.g., update SIB2 or SIB 4;

(4) The network broadcasts the updated system information at the boundary of the next system information modification period, wherein the SIB4 is the on-demand SI:

the network broadcasts only certain system information, not for other on-demand SI network sides, e.g. SIB4, or

For on-demand SI, which the network does not broadcast, the network broadcasts on UE requests in an initial BWP manner, or

The network decides whether to broadcast the system information in the broadcast phase according to whether to update or not the system information necessary for the BWP.

(5) And the UE receives the updated system information at the next system information modification period boundary after receiving the paging DCI and stores and takes effect the received system information. If the network supports the UE to request the on-demand SI, the UE can request the transmission of the on-demand SI to the network side based on the request of the MSG1 (message 1) or the MSG3 (message 3).

Example 5: the duration of the broadcast;

(1) the network decides to update the system information.

(2) The network sends the paging DCI for system information update notification on the non-initial BWP.

(4) The network broadcasts the updated system information at the boundary of the next system information modification period:

the broadcast time is based on network implementation, the network does not inform the UE of the period of system information broadcast, which may be N system information modification periods, or a fixed duration based on some timer, or

The system information broadcast duration is a fixed value, which may be N system information modification periods or a certain timer length, which may be configured by the network to the UE, for example, through broadcast or dedicated signaling, or fixed by a protocol, wherein all system information may have a uniform broadcast duration, or different system information blocks may be configured with different broadcast durations, for example, the MIB may configure the broadcast duration separately.

(5) The UE starts receiving updated system information at the next system information modification period boundary after receiving the paging DCI:

the UE can not know the duration of the system information broadcast by the network side, and then the UE tries to acquire the updated system information in each period until the UE receives all the system information, or finds that the network does not broadcast any more, or

The UE can know the duration of the network broadcasting the system information, and then the UE attempts to acquire new system information in the time period until the UE receives all system information or the fixed duration is over.

The UE validates the received system information storage. And if the UE does not receive all the broadcasted system information, performing subsequent processes according to the failure of receiving the system information.

Example 6: the time domain location of the broadcast;

example 6-1: MIB;

(1) the network decides to broadcast the MIB;

the system information broadcast period of the MIB coincides with the initial BWP broadcast MIB system information period, or

The system information broadcast period of the MIB is configured by the BWP alone or is decided based on SIB1 scheduling of the BWP;

and, the network repeatedly transmits the MIB in the system information broadcast period of the MIB:

-number of repetitions within MIB broadcast period, for BWP based configuration; or

The number of repetitions within the broadcast period of the MIB is the same as the number of repetitions within the broadcast period of the MIB in the initial BWP.

Position where transmission is repeated:

the repetition position has the same calculation method as the initial BWP, or

-configuring a computing method, or computing parameters, based on BWP.

(5) And the UE receives the MIB at the time domain position sent by the MIB in the broadcast period of the MIB. The UE validates the received system information storage.

Example 6-2: SIB 1;

(1) network decision broadcast SIB 1;

the system information broadcast period of SIB1 coincides with the initial BWP broadcast SIB1 system information period, or

The system information broadcast period of SIB1 is configured by the BWP alone;

and, the network repeatedly transmits SIB1 within the system information broadcast period of SIB 1:

the number of repetitions within the SIB1 broadcast period, for BWP based configuration; or

The number of repetitions within the broadcast period of SIB1 is the same as the number of repetitions within the broadcast period of SIB1 in the initial BWP.

Position where transmission is repeated:

the repetition position has the same calculation method as the initial BWP, or

-configuring a computing method, or computing parameters, based on BWP.

(5) The UE receives SIB1 at the time domain location transmitted by SIB1 within the broadcast period of SIB 1. The UE validates the received system information storage.

Example 6-3: system information that may be scheduled by SIB 1;

(1) the network decides to perform system information updates.

(4) The network broadcasts updated system information at the boundary of the next system information modification period, where for the system information scheduled by SIB 1:

the time domain location relationship of all the system information scheduled by SIB1 or part of the system information scheduled by SIB1 (e.g. PWS) is fixed, SIB1 only informs which system information will be broadcast, wherein the resources of the location of the non-broadcasted SIB/SI are flexibly scheduled by the network. The fixed relationship may be protocol specified or network pre-configured, for example, the position relationship of the system information broadcast window corresponding to each SIB is fixed, once the SIB is broadcasted, the SIB only appears in the corresponding broadcast window, and the window corresponding to the non-broadcasted SIB can be flexibly called by the network, the SIB1 informs the broadcasted SIB/SI; and/or

Only the system information scheduled by SIB1 will be allocated into different time domains according to the configured system information window, and the non-scheduled system information will not have pre-configured time domain resources.

The length of a broadcast window of system information, the broadcast period configuration of SIB or SI:

can be the same as the initial BWP, or

Implementation by SIB1 scheduling based on BWP network configuration.

(5) The UE acquires the SIB or SI broadcasted through the SIB1, acquires the position of the corresponding broadcasted system information window, and receives SIB1 scheduling system information according to the position. The UE validates the received system information storage.

As can be seen from the above, the scheme provided in the embodiment of the present invention is mainly that the network broadcasts the system information on the non-initial BWP, may broadcast in a broadcast manner different from the initial BWP, may broadcast a partial SI or SIB set, and may configure the broadcasted system information in a delta configuration manner. The MIB may be broadcast according to PDCCH scheduling, PDSCH broadcasting, or PDCCH carrying MIB, and configuring temporary PBCH. The non-initial BWP may update the system information in a manner of temporarily broadcasting the system information, and the temporal location of the system information block may be the same as the initial BWP or a configuration of the per BWP.

The scheme solves the problem of providing broadcast system information for the connected UE on the non-initial BWP, and can effectively save the overhead of air interface signaling.

The network device provided by the embodiment of the invention provides a specific broadcasting method; broadcast of system information over non-initial BWPs is enabled.

Specifically, as shown in fig. 4, the network device according to the embodiment of the present invention includes:

a processor 41; and a memory 43 connected to the processor 41 through the bus interface 42, wherein the memory 43 is used for storing programs and data used by the processor 41 in executing operations, and when the processor 41 calls and executes the programs and data stored in the memory 43, the following processes are executed:

system information is broadcast to connected terminals over a non-initial portion of bandwidth by the transceiver 44.

Wherein a transceiver 44 is connected to the bus interface 42 for receiving and transmitting data under control of the processor 41.

It should be noted that in fig. 4, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 41 and various circuits of memory represented by memory 43 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 44 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 41 is responsible for managing the bus architecture and general processing, and the memory 43 may store data used by the processor 41 in performing operations.

Those skilled in the art will appreciate that all or part of the steps for implementing the above embodiments may be performed by hardware, or may be instructed to be performed by associated hardware by a computer program that includes instructions for performing some or all of the steps of the above methods; and the computer program may be stored in a readable storage medium, which may be any form of storage medium.

With respect to the broadcasted content, the system information includes: a master information block, and/or a system information block 1, and/or system information based on a terminal request, and/or all system information block groups or system information blocks in a preset system information set, or updated system information block groups or system information blocks in the preset system information set;

the preset system information set is a set containing all system information, or a system information set required by a terminal to access a network, or a system information set configured for the non-initial part of bandwidth by the network, or a required system information set defined for a service provided for the terminal according to the non-initial part of bandwidth.

Wherein, the broadcast of the master information block adopts: a physical downlink control channel scheduling, a physical downlink shared channel broadcasting mode, or a mode carried by a physical downlink control channel, or a mode of configuring a temporary physical broadcast channel broadcasting.

The implementation embodiments of the system information broadcasting method are all applicable to the embodiment of the network device, and the same technical effect can be achieved.

The implementation embodiments of the system information broadcasting method are all applicable to the embodiment of the computer-readable storage medium, and the same technical effects can be achieved.

An embodiment of the present invention further provides a system information broadcasting apparatus, which is applied to a network device, and as shown in fig. 5, the system information broadcasting apparatus includes:

a broadcasting module 51, configured to broadcast the system information to the connected terminal on the non-initial part of the bandwidth.

The system information broadcasting device provided by the embodiment of the invention provides a specific broadcasting method; broadcast of system information over non-initial BWPs is enabled.

The implementation embodiments of the system information broadcasting method are all applicable to the embodiment of the system information broadcasting device, and the same technical effect can be achieved.

It should be noted that many of the functional units described in this specification have been referred to as modules, in order to more particularly emphasize their implementation independence.

In embodiments of the present invention, modules may be implemented in software for execution by various types of processors. An identified module of executable code may, for instance, comprise one or more physical or logical blocks of computer instructions which may, for instance, be constructed as an object, procedure, or function. Nevertheless, the executables of an identified module need not be physically located together, but may comprise disparate instructions stored in different bits which, when joined logically together, comprise the module and achieve the stated purpose for the module.

Indeed, a module of executable code may be a single instruction, or many instructions, and may even be distributed over several different code segments, among different programs, and across several memory devices. Likewise, operational data may be identified within the modules and may be embodied in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed over different locations including over different storage devices, and may exist, at least partially, merely as electronic signals on a system or network.

When a module can be implemented by software, considering the level of existing hardware technology, a module implemented by software may build a corresponding hardware circuit to implement a corresponding function, without considering cost, and the hardware circuit may include a conventional Very Large Scale Integration (VLSI) circuit or a gate array and an existing semiconductor such as a logic chip, a transistor, or other discrete components. A module may also be implemented in programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices or the like.

While the preferred embodiments of the present invention have been described, 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.

Claims

1. A system information broadcasting method is applied to network equipment and is characterized by comprising the following steps:

broadcasting system information to the connected state terminal on the non-initial part of bandwidth;

wherein the system information includes:

a master information block, and/or

System information block 1, and/or

System information based on terminal requests, and/or

the preset system information set is a set containing all system information, or a system information set required by a terminal to access a network, or a system information set configured for the non-initial part bandwidth by the network, or a required system information set defined for a service provided for the terminal according to the non-initial part bandwidth;

the system information is broadcasted based on an incremental configuration mode, a default information element is an information element which keeps the original configuration, or the system information is broadcasted based on a full configuration mode, and the default information element is an information element which is not configured;

wherein the system information window is configured based on a portion of the bandwidth; and/or

2. The system information broadcasting method of claim 1, wherein the broadcasting of the master information block employs:

By means of physical downlink control channel carrier, or

3. The method of claim 2, wherein the manners of scheduling the pdcch and broadcasting the pdcch include:

Scheduling master information block by system information block 1, or

4. The system information broadcasting method according to claim 1, wherein based on a broadcasting mode of the system information requested by the terminal:

Not broadcasting; or

5. The system information broadcasting method of claim 4, wherein broadcasting according to network side requirements without being based on a terminal request comprises:

broadcasting according to whether or not updating is performed, or

6. The system information broadcasting method of claim 1, wherein the broadcasting duration is determined by the network device and is not notified to the terminal; or

7. The method of claim 6, wherein if the broadcasting duration is a fixed number of system information modification periods or a fixed duration:

8. The system information broadcasting method of claim 1, wherein the system information scheduled by the system information block 1 is periodically broadcasted in the corresponding system information window, and each system information block or system information block group is sequentially allocated in the sequentially arranged system information windows; and/or

9. The system information broadcasting method of claim 1, wherein the system information is repeatedly transmitted in a corresponding system information broadcasting period, and wherein the number of times of repeated transmission:

the same number of repeated transmissions of the initial partial bandwidth, or

More times than repeated transmission in the initial part of the bandwidth, or

The configuration is based on the partial bandwidth.

10. A network device comprising a memory, a processor, a transceiver, and a computer program stored on the memory and executable on the processor; wherein the processor implements the following steps when executing the program:

broadcasting system information to connected state terminals over a non-initial portion of bandwidth through the transceiver;

wherein the system information includes:

a master information block, and/or

System information block 1, and/or

System information based on terminal requests, and/or

11. The network device of claim 10, wherein the broadcast of the master information block employs:

By means of physical downlink control channel carrier, or

12. The network device of claim 11, wherein the physical downlink control channel scheduling and physical downlink shared channel broadcasting manner includes:

Scheduling master information block by system information block 1, or

13. The network device of claim 10, wherein based on a broadcast mode of the system information requested by the terminal:

Not broadcasting; or

14. The network device of claim 13, wherein broadcasting according to network side requirements, not based on terminal requests, comprises:

broadcasting according to whether or not updating is performed, or

15. The network device of claim 10, wherein the duration of the broadcast is determined by the network device and is not signaled to the terminal; or

16. The network device of claim 15, wherein if the broadcast duration is a fixed number of system information modification periods or a fixed duration:

17. The network device of claim 10, wherein the system information scheduled by the system information block 1 is periodically broadcasted in the corresponding system information window, and each system information block or system information block group is sequentially allocated in the sequentially arranged system information windows; and/or

18. The network device of claim 10, wherein the system information is repeatedly transmitted in a corresponding system information broadcast period, and wherein the number of times of repeated transmission is:

the same number of repeated transmissions of the initial partial bandwidth, or

More times than repeated transmission in the initial part of the bandwidth, or

The configuration is based on the partial bandwidth.

19. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the system information broadcasting method according to any one of claims 1 to 9.

20. A system information broadcasting device applied to a network device, comprising:

the broadcast module is used for broadcasting the system information to the connected terminal on the non-initial part of bandwidth;

wherein the system information includes:

a master information block, and/or

System information block 1, and/or

System information based on terminal requests, and/or

The system information broadcasting period of the master information block is the same as the system information broadcasting period of the initial part broadband broadcast master information block; and/or