CN107995595A - A kind of method for realizing NB-IoT multicast coverage enhancements - Google Patents
A kind of method for realizing NB-IoT multicast coverage enhancements Download PDFInfo
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- CN107995595A CN107995595A CN201610958548.6A CN201610958548A CN107995595A CN 107995595 A CN107995595 A CN 107995595A CN 201610958548 A CN201610958548 A CN 201610958548A CN 107995595 A CN107995595 A CN 107995595A
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- multicast
- coverage enhancement
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/24—Cell structures
- H04W16/26—Cell enhancers or enhancement, e.g. for tunnels, building shadow
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W8/08—Mobility data transfer
- H04W8/16—Mobility data transfer selectively restricting mobility data tracking
Abstract
The present invention proposes a kind of method for realizing NB IoT multicast coverage enhancements, including：Mobility management entity MME receives the multicast auxiliary information of all reported by user equipment UE；The multicast auxiliary information reported according to all UE determines worst covering grade；Determine that multicast coverage enhancement configures and is handed down to evolved node B according to the worst covering grade for business.Evolved node B receives network side and issues the configuration of NB IoT multicasts coverage enhancement；Business transmission data are configured to according to the multicast coverage enhancement.
Description
Technical field
The present invention relates to mobile communication system, more particularly to a kind of method for realizing NB-IoT multicast coverage enhancements.
Background technology
IoT (Internet of Thing, Internet of Things) is next revolution in the mobile communication ecosystem.NB-IoT
It is a kind of new arrowband cellular telecommunication art that in September, 2015 is proposed in the project verification of 3GPP standardization bodies.3GPP NB-IoT work
Project will generally define it is a kind of for E-UTRAN non-backward compatibles, have the new skill of honeycomb Internet of Things wireless access of large variation
Art, to solve in-door covering enhancing, magnanimity low rate equipment accesses, low time delay is sensitive, low equipment cost, low-power consumption and network rack
The problems such as structure optimizes.First, NB-IoT has the characteristics that to dispose flexible, arrowband, low rate, low cost, high power capacity.Second, NB-
IoT possesses coverage enhancement, the characteristic of low time delay sensitivity.3rd, NB-IoT equipment do not support the mobile management of connected state.The
Four, NB-IoT equipment are the equipment of low-power consumption.
SC-PTM is based on the MBMS network architectures, introduces new logic channel SC-MCCH (LCID=11001) and SC-MTCH
(LCID=11001), DL-SCH transmission channels are mapped to, on PDSCH physical channels.SC-MCCH and SC-MTCH do not support HARQ
Operation, and using UM RLC.Introduce new SIB types, SIB20 transmits the configuration information of SC-MCCH, and a cell only has one
A SC-MCCH.Configuration information includes：The modification cycle of SC-MCCH, repetition period, and radio frames and subframe configuration information.
SC-MCCH only transmits a message SCPTMConfiguration, which is used for the configuration information for configuring SC-PTM.Introduce new
RNTI, SC-RNTI (fixed value FFFC) identifies scheduling informations of the SC-MCCH on PDCCH.Introduce new RNTI, SC-
N-RNTI (fixed value FFFB), to identify the PDCCH of the Notification of Changes of SC-MCCH.With one in 8 bit in DCI 1C
Bit indicates Notification of Changes.Modification cycle boundary is defined as SFN mod m=0, and wherein m is the modification week configured in SIB20
Phase.The configuration information of SC-PTM includes：TMGI, optional seession id, G-RNTI, SC-PTM DRX configuration informations and
The SC-PTM business information of adjacent area.
In Rel-13 in NB-IoT, it is desirable to support SC-PTM Multicast operations to support software upgrading etc. to operate.Each biography
Defeated is all towards multiple UE, is not covered with strengthening in the SC-PTM of R13, and each transmission is transmission primaries, and no matter
Whether UE interested receives correctly.But it is just different under NB-IoT scenes, such as towards terminal be the business such as waterpower, electric power
The terminal of type, this Terminal Type one are arranged in the bad place of the coverage conditions such as basement, it is necessary to by a data weight
The mode that is transmitted several times again achievees the purpose that coverage enhancement.In the coverage enhancement of NB-IoT, increase for coverings such as broadcast types
Strong number of repetition is fixed, for business datum, is towards a UE, is generally measured according to UE and determine to repeat transmission time
Number.Different from the broadcast and unicast of the SC-PTM of R13, it is towards one group of UE, and different business for the multicast of NB-IoT
The coverage enhancement degree that may be needed is also different.
The content of the invention
In view of the above-mentioned problems, the present invention proposes a kind of method for realizing NB-IoT multicast coverage enhancements, including：Mobility pipe
Manage the multicast auxiliary information that entity MME receives all reported by user equipment UE；The multicast reported according to all UE aids in letter
Breath determines worst covering grade；Determine that multicast coverage enhancement is configured and is handed down to according to the worst covering grade for business to drill
Into type node B.
Further, the multicast auxiliary information includes：The mobile class information of UE, it is expected coverage enhancement rank or expectation
The E-CGI of iterative transfer times, place cell.
Further, the mobile class information of the UE includes：UE is fixed terminal, micro- mobile terminal or quick
Mobile terminal.
Further, the mobile rank of the UE is obtained by broadcast message or by agreement regulation or by mobile speed
Degree thresholding is determined with UE movement rank correspondences.
Further, if the UE is micro- mobile terminal, the multicast auxiliary information further includes：Period T, represents
The expectation coverage enhancement rank or expectation iterative transfer times are constant in T time.
Further, the expectation coverage enhancement rank or expectation iterative transfer times are drawn in the following way by UE：
The corresponding of Reference Signal Received Power RSRP and coverage enhancement rank or iterative transfer times is obtained by NB-IoT Cell Broadcast CBs
Relation；Measure cell reference signals and obtain RSRP, the expectation coverage enhancement rank or expectation are determined according to the correspondence
Iterative transfer times.
Further, the multicast auxiliary information further includes：Business information interested UE.
Further, the multicast auxiliary information is reported by UE during attaching process or tracing section updating.
Further, the evolved node B that is handed down to is specifically included：Single cell point is configured on M2/M3 interfaces to more
During point transmission SC-PTM, the evolved node B is sent to by the message on M2/M3 interfaces.
Further, the multicast coverage enhancement configuration includes：SC-MTCH configurations, coverage enhancement grade repeat to transmit
Number, E-CGI and period T.
Based on identical design, the present invention also proposes a kind of method for realizing NB-IoT multicast coverage enhancements, including：Receive
Network side issues the configuration of NB-IoT multicasts coverage enhancement；Business transmission data are configured to according to the multicast coverage enhancement.
Further, the multicast coverage enhancement configuration includes：SC-MTCH configurations, coverage enhancement grade repeat to transmit
Number, E-CGI and period T.
Further, further include：The period T information in the multicast coverage enhancement configuration is sent to end side.
Further, further include：Broadcast Reference Signal Received Power and pair of coverage enhancement grade or iterative transfer times
It should be related to.
Based on identical design, the present invention also proposes a kind of method for realizing NB-IoT multicast coverage enhancements, including：User
Equipment UE reports multicast auxiliary information during attaching process or tracing section updating；The multicast auxiliary information includes：UE
Mobile class information, it is expected coverage enhancement rank or it is expected iterative transfer times, the E-CGI of place cell.
Further, the mobile rank of the UE is obtained by broadcast message or by agreement regulation or by mobile speed
Degree thresholding is determined with UE movement rank correspondences；The mobile circle information of the UE includes：UE is fixed terminal, micro-shifting
Dynamic terminal or fast mobile terminals.
Further, if the UE is micro- mobile terminal, the multicast auxiliary information further includes：Period T, represents
The expectation coverage enhancement rank or expectation iterative transfer times are constant in T time.
Further, the expectation coverage enhancement rank or expectation iterative transfer times are drawn in the following way：Pass through
NB-IoT Cell Broadcast CBs obtain Reference Signal Received Power RSRP and the correspondence of coverage enhancement rank or iterative transfer times；
Measure cell reference signals and obtain RSRP, the expectation coverage enhancement rank is determined according to the correspondence or it is expected to repeat to pass
Defeated number.
Further, the multicast auxiliary information further includes：Business information interested UE.
Further, further include：Receive the period T information in the multicast coverage enhancement configuration that evolved node B is issued；
The multicast auxiliary information of oneself is updated according to the T time interval initiating updating of tracking area process.
The method of the present invention can determine the coverage enhancement level of SC-MTCH/SC-MCCH in SC-PTM under NB-IoT scenes
Other or iterative transfer times, so as to optimize PDSCH resources and realize that rationally enhancing covers.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are this hairs
Some bright embodiments, for those of ordinary skill in the art, without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 realizes NB-IoT multicast coverage enhancement method flow block diagrams for MME sides proposed by the present invention；
Fig. 2 realizes NB-IoT multicast coverage enhancement method flow block diagrams for eNB sides proposed by the present invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments；It should be noted that in the case where there is no conflict, in the application
Embodiment and embodiment in feature can be mutually combined.Based on the embodiments of the present invention, those of ordinary skill in the art
All other embodiments obtained without creative efforts, belong to the scope of protection of the invention.
One embodiment of the present of invention proposes a kind of method for realizing NB-IoT multicast coverage enhancements, refers to Fig. 1, wraps
Include：Mobility management entity MME receives the multicast auxiliary information of all reported by user equipment UE；According to being reported all UE
Multicast auxiliary information determines worst covering grade；Determine that multicast coverage enhancement configures according to the worst covering grade for business
And it is handed down to evolved node B.
In one alternate embodiment, multicast auxiliary information includes：The mobile class information of UE, it is expected coverage enhancement rank
Or it is expected iterative transfer times, the E-CGI of place cell.
In one alternate embodiment, the mobile class information of UE includes：UE for fixed terminal, micro- mobile terminal or
Person's fast mobile terminals.
In one alternate embodiment, the mobile rank of UE is obtained by broadcast message or is provided or passed through by agreement
Translational speed thresholding is determined with UE movement rank correspondences.
In one alternate embodiment, the UE is micro- mobile terminal, then the multicast auxiliary information further includes：Period
T, represents the expectation coverage enhancement rank in T time or it is expected that iterative transfer times are constant.
In one alternate embodiment, it is expected coverage enhancement rank or it is expected iterative transfer times by UE in the following way
Draw：Reference Signal Received Power RSRP and coverage enhancement rank or iterative transfer times are obtained by NB-IoT Cell Broadcast CBs
Correspondence；Measure cell reference signals obtain RSRP, according to the correspondence determine it is described expectation coverage enhancement rank or
It is expected iterative transfer times.
In one alternate embodiment, multicast auxiliary information further includes：Business information interested UE.
In one alternate embodiment, multicast auxiliary information by UE during the attaching process or tracing section updating on
Report.
In one alternate embodiment, evolved node B is handed down to specifically include：Single cell is configured on M2/M3 interfaces
During point-to-multipoint transmission SC-PTM, the evolved node B is sent to by the message on M2/M3 interfaces.
In one alternate embodiment, multicast coverage enhancement configuration includes：SC-MTCH configurations, coverage enhancement grade or again
Multiple the number of transmissions, E-CGI and period T.
An alternative embodiment of the invention also proposes a kind of method for realizing NB-IoT multicast coverage enhancements, refers to Fig. 2,
Including：Receive network side and issue the configuration of NB-IoT multicasts coverage enhancement；Business transmission is configured to according to the multicast coverage enhancement
Data.
In one alternate embodiment, multicast coverage enhancement configuration includes：SC-MTCH configurations, coverage enhancement grade or again
Multiple the number of transmissions, E-CGI and period T.
In one alternate embodiment, further include：Send the period T information in the multicast coverage enhancement configuration
To end side.
In one alternate embodiment, further include：Reference Signal Received Power is broadcasted to pass with coverage enhancement grade or repetition
The correspondence of defeated number.
An alternative embodiment of the invention also proposes a kind of method for realizing NB-IoT multicast coverage enhancements, including：User
Equipment UE reports multicast auxiliary information during attaching process or tracing section updating；The multicast auxiliary information includes：UE
Mobile class information, it is expected coverage enhancement rank or it is expected iterative transfer times, the E-CGI of place cell.
In one alternate embodiment, the mobile rank of UE is obtained by broadcast message or is provided or passed through by agreement
Translational speed thresholding is determined with UE movement rank correspondences；The mobile circle information of the UE includes：UE is fixed end
End, micro- mobile terminal or fast mobile terminals.
In one alternate embodiment, if the UE is micro- mobile terminal, the multicast auxiliary information further includes：When
Between section T, represent in T time it is described expectation coverage enhancement rank or it is expected iterative transfer times it is constant.
In one alternate embodiment, it is expected coverage enhancement rank or it is expected that iterative transfer times obtain in the following way
Go out：Reference Signal Received Power RSRP and pair of coverage enhancement rank or iterative transfer times are obtained by NB-IoT Cell Broadcast CBs
It should be related to；Measure cell reference signals and obtain RSRP, the expectation coverage enhancement rank or phase are determined according to the correspondence
Hope iterative transfer times.
In one alternate embodiment, multicast auxiliary information further includes：Business information interested UE.
In one alternate embodiment, further include：Receive evolved node B issue multicast coverage enhancement configuration in when
Between section T information；The multicast auxiliary information of oneself is updated according to the T time interval initiating updating of tracking area process.
The method of the present invention can determine the coverage enhancement level of SC-MTCH/SC-MCCH in SC-PTM under NB-IoT scenes
Other or iterative transfer times, so as to optimize PDSCH resources and realize that rationally enhancing covers.
Embodiment
Step 1, NB-IoT Cell Broadcast CB RSRP thresholdings are in CE level correspondences or RSRP with it is expected number of repetition
Correspondence.
Step 2, NB-IoT UE measurement cells CRS obtain RSRP, and are contrasted with configuration information in broadcast, determine CE
Level it is expected number of repetition；
Step 3, UE carry mobile class information, the business interested letter of UE during ATTACH processes or TAU
Breath, CE level it is expected that the information such as the E-CGI and period T of number of repetition, cell residing at that time are sent to MME.
Wherein：
(1) the mobile class information UE of UE is fixed terminal or UE is that micro- mobile terminal or UE are quick
Mobile terminal.On how to judge that micro- mobile terminal or fast mobile terminals can be by broadcast message acquisition or agreements
Regulation is dead or depending on realizing (such as translational speed thresholding is in mobile rank correspondence).
(2) business information interested：Such as waterpower monitoring type terminal, logistic track type terminals etc..Here on UE
Report be it is optional, can also MME from HSS there obtain.
(3) period T represents that CE level or desired iterative transfer times do not change in T time.
The information that step 4, MME are reported according to all UE, for the worst covering grade information of the service selection.
Step 5, on M2/M3 interfaces configure SC-PTM when, eNB is sent to by MME by the message on the interface.
Here iterative transfer times be for every business configuration, i.e., each SC-MTCH configurations.Configuration information includes：SC-
MTCH configurations, iterative transfer times, E-CGI, period T (micro-shifting, which moves UE, just to be had).
Step 6, eNB transmit data in specified cell according to the number of repetition of configuration.
Step 7 while eNB can also send the information on business T, can be according between T time after UE receives T information
The NB-IoT multicast auxiliary informations of oneself, i.e. information in step 3 are updated every initiating TAU.
6th, one of ordinary skill in the art will appreciate that：Realize that all or part of step of above method embodiment can be with
Completed by the relevant hardware of programmed instruction, foregoing program can be stored in a computer read/write memory medium, should
Program upon execution, execution the step of including above method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or
Person's CD etc. is various can be with the medium of store program codes.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
To modify to the technical solution described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical solution spirit and
Scope.
Claims (20)
- A kind of 1. method for realizing NB-IoT multicast coverage enhancements, it is characterised in that including：Mobility management entity MME receives the multicast auxiliary information of all reported by user equipment UE；The multicast auxiliary information reported according to all UE determines worst covering grade；Determine that multicast coverage enhancement configures and is handed down to evolved node B according to the worst covering grade for business.
- 2. according to the method described in claim 1, it is characterized in that, the multicast auxiliary information includes：The mobile rank letter of UE Breath, it is expected coverage enhancement rank or it is expected iterative transfer times, the E-CGI of place cell.
- 3. according to the method described in claim 2, it is characterized in that, the mobile class information of the UE includes：UE is to fix not Dynamic terminal, micro- mobile terminal or fast mobile terminals.
- 4. according to the method described in claim 3, it is characterized in that, the mobile rank of the UE by broadcast message obtain or Provided by agreement or determined by translational speed thresholding and UE movement rank correspondences.
- 5. if according to the method described in claim 3, it is characterized in that, the UE is micro- mobile terminal, the multicast is auxiliary Supplementary information further includes：Period T, represents the expectation coverage enhancement rank in T time or it is expected that iterative transfer times are constant.
- 6. according to the method described in claim 2, it is characterized in that, the expectation coverage enhancement rank or expectation repeat transmission time Number is drawn in the following way by UE：Reference Signal Received Power RSRP and coverage enhancement rank or iterative transfer times are obtained by NB-IoT Cell Broadcast CBs Correspondence；Measure cell reference signals and obtain RSRP, the expectation coverage enhancement rank is determined according to the correspondence or it is expected weight Multiple the number of transmissions.
- 7. according to the method described in claim 2, it is characterized in that, the multicast auxiliary information further includes：Industry interested UE Business information.
- 8. according to the method described in claim 1, it is characterized in that, the multicast auxiliary information by UE attaching process or with Reported in track area renewal process.
- 9. according to the method described in claim 1, it is characterized in that, the evolved node B that is handed down to is specifically included：When configuring single cell point to multicast communication SC-PTM on M2/M3 interfaces, institute is sent to by the message on M2/M3 interfaces State evolved node B.
- 10. according to the method described in claim 1, it is characterized in that, multicast coverage enhancement configuration includes：SC-MTCH matches somebody with somebody Put, coverage enhancement grade or iterative transfer times, E-CGI and period T.
- A kind of 11. method for realizing NB-IoT multicast coverage enhancements, it is characterised in that including：Evolved node B receives network side and issues the configuration of NB-IoT multicasts coverage enhancement；Business transmission data are configured to according to the multicast coverage enhancement.
- 12. according to the method for claim 11, it is characterised in that the multicast coverage enhancement configuration includes：SC-MTCH matches somebody with somebody Put, coverage enhancement grade or iterative transfer times, E-CGI and period T.
- 13. according to the method for claim 12, it is characterised in that further include：The period T information in the multicast coverage enhancement configuration is sent to end side.
- 14. according to the method for claim 11, it is characterised in that further include：Broadcast Reference Signal Received Power and the correspondence of coverage enhancement grade or iterative transfer times.
- A kind of 15. method for realizing NB-IoT multicast coverage enhancements, it is characterised in that including：User equipment (UE) reports multicast auxiliary information during attaching process or tracing section updating；The multicast auxiliary information includes：Mobile class information, expectation coverage enhancement rank or the expectation iterative transfer times of UE, The E-CGI of place cell.
- 16. according to the method for claim 15, it is characterised in that the mobile rank of the UE obtained by broadcast message or Person is provided by agreement or is determined by translational speed thresholding and UE movement rank correspondences；The mobile circle letter of the UE Breath includes：UE is fixed terminal, micro- mobile terminal or fast mobile terminals.
- 17. according to the method for claim 16, it is characterised in that if the UE is micro- mobile terminal, the multicast Auxiliary information further includes：Period T, represents the expectation coverage enhancement rank in T time or it is expected iterative transfer times not Become.
- 18. according to the method for claim 15, it is characterised in that the expectation coverage enhancement rank it is expected to repeat to transmit Number is drawn in the following way：Reference Signal Received Power RSRP and coverage enhancement rank or iterative transfer times are obtained by NB-IoT Cell Broadcast CBs Correspondence；Measure cell reference signals and obtain RSRP, the expectation coverage enhancement rank is determined according to the correspondence or it is expected weight Multiple the number of transmissions.
- 19. according to the method for claim 15, it is characterised in that the multicast auxiliary information further includes：UE is interested Business information.
- 20. according to the method for claim 15, it is characterised in that further include：Receive the period T information in the multicast coverage enhancement configuration that evolved node B is issued；The multicast auxiliary information of oneself is updated according to the T time interval initiating updating of tracking area process.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109660630A (en) * | 2019-01-04 | 2019-04-19 | 中国联合网络通信集团有限公司 | Power saving method for parameter configuration and device based on NB-IoT business |
| CN110505041A (en) * | 2018-05-17 | 2019-11-26 | 中国移动通信有限公司研究院 | Information uploading method, data transmission method, user equipment and network side equipment |
| CN110662251A (en) * | 2018-06-29 | 2020-01-07 | 夏普株式会社 | Method performed by user equipment and user equipment |
| CN111224745A (en) * | 2018-11-26 | 2020-06-02 | 中国电信股份有限公司 | Narrow-band Internet of things NB-IoT network resource allocation method, terminal, equipment and system |
-
2016
- 2016-10-27 CN CN201610958548.6A patent/CN107995595A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110505041A (en) * | 2018-05-17 | 2019-11-26 | 中国移动通信有限公司研究院 | Information uploading method, data transmission method, user equipment and network side equipment |
| CN110505041B (en) * | 2018-05-17 | 2021-08-06 | 中国移动通信有限公司研究院 | Information reporting method, data transmission method, user equipment and network side equipment |
| US11902809B2 (en) | 2018-05-17 | 2024-02-13 | China Mobile Communication Co., Ltd Research Institute | Information reporting method, data transmission method, user equipment and network side device |
| CN110662251A (en) * | 2018-06-29 | 2020-01-07 | 夏普株式会社 | Method performed by user equipment and user equipment |
| CN110662251B (en) * | 2018-06-29 | 2023-11-07 | 夏普株式会社 | Method performed by user equipment and user equipment |
| CN111224745A (en) * | 2018-11-26 | 2020-06-02 | 中国电信股份有限公司 | Narrow-band Internet of things NB-IoT network resource allocation method, terminal, equipment and system |
| CN109660630A (en) * | 2019-01-04 | 2019-04-19 | 中国联合网络通信集团有限公司 | Power saving method for parameter configuration and device based on NB-IoT business |
| CN109660630B (en) * | 2019-01-04 | 2021-08-03 | 中国联合网络通信集团有限公司 | Power saving parameter configuration method and device based on NB-IoT service |
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