CN108234095A - A kind of method that uplink number of repetition is determined in narrowband Internet of Things - Google Patents
A kind of method that uplink number of repetition is determined in narrowband Internet of Things Download PDFInfo
- Publication number
- CN108234095A CN108234095A CN201611159835.7A CN201611159835A CN108234095A CN 108234095 A CN108234095 A CN 108234095A CN 201611159835 A CN201611159835 A CN 201611159835A CN 108234095 A CN108234095 A CN 108234095A
- Authority
- CN
- China
- Prior art keywords
- repetition
- level
- rsrp
- uplink
- measured values
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000005516 engineering process Methods 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 210000004209 hair Anatomy 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The embodiment of the present invention proposes a kind of method that uplink number of repetition is determined in narrowband Internet of Things, including：Obtain corrected parameter and/or narrowband Physical Random Access Channel NPRACH configuration informations；According to Reference Signal Received Power RSRP measured values, the correspondence of coverage enhancement grade CE Level and number of repetition and the corrected parameter, uplink number of repetition is determined.The number of repetition that the method for the present invention can be directed to the NPRACH of the UE of 14dBm power grades is modified, so as to meet the needs of NB IOT are to coverage enhancement level.
Description
Technical field
The present invention relates to the sides that uplink number of repetition is determined in mobile communication system more particularly to a kind of narrowband Internet of Things
Method.
Background technology
Narrowband Internet of Things NB-IoT is a kind of new narrowband honeycomb that in September, 2015 is proposed in the project verification of 3GPP standardization bodies
The communication technology.3GPP NB-IoT work projects generally will definition one kind for E-UTRAN non-backward compatibles, have large variation
Honeycomb Internet of Things wireless access new technology, with solve in-door covering enhancing, the access of magnanimity low rate equipment, low time delay it is sensitive,
The problems such as low equipment cost, low-power consumption and the network architecture optimize.
The power grade of user equipment (UE) existing for network side is all 23dBm at present.R13NB-IOT UE support 23dBm
With the UE power grades of 20dBm.In R14, it is intended to introduce lower UE power grades, such as 14dBm, such as small outline devices
Equipment.
In current NB-IOT, NPRACH configuration informations are as follows：Three narrowband physical accidentals are at most configured in network side in SIB
Channel (NPRACH) resource is accessed, corresponds to three coverage enhancement (CE) grades respectively.The number of repetition of each CE grades NPRACH
It is different and configuration.UE determines the CE grades of oneself, and then really according to the Reference Signal Received Power RSRP values of measurement
Determine NPRACH numbers of repetition.Base station is also NPRACH resources difference to be selected to determine number of repetition according to UE.
It for UE power grades is that 23dBm is configured that current NPRACH configurations, which are,.But the UE of 14dBm power grades,
Ascending power is limited, the number of repetition of current-configuration cannot meet the needs of coverage enhancement.So it needs for 14dBm work(
The number of repetition of the NPRACH of the UE of rate grade is modified, to meet the needs of NB-IOT is to coverage enhancement level.
Invention content
In view of the above-mentioned problems, the present invention proposes a kind of method that uplink number of repetition is determined in narrowband Internet of Things, including：It obtains
Take corrected parameter and/or narrowband Physical Random Access Channel NPRACH configuration informations；It is surveyed according to Reference Signal Received Power RSRP
Magnitude, the correspondence of coverage enhancement grade CE Level and number of repetition and the corrected parameter, determine uplink number of repetition.
Further, the corrected parameter includes：Number of repetition modifying factor, RSRP biasings or CE Level are corrected
The factor.
Further, according to Reference Signal Received Power RSRP measured values, coverage enhancement grade CE Level and repetition time
Several correspondences and the corrected parameter, determine uplink number of repetition, including：
The UE of 14dBm power grades determines corresponding CE Level according to the RSRP measured values；
It is modified using number of repetition modifying factor number of repetition N corresponding to the CE Level, it is revised heavy
Multiple times N '=N*k1；
According to the CE Level and the correspondence of number of repetition, revised number of repetition N ' is mapped to nearest CE
In the corresponding numbers of repetition of Level, last CE Level grades and uplink number of repetition are determined.
Further, according to Reference Signal Received Power RSRP measured values, coverage enhancement grade CE Level and repetition time
Several correspondences and the corrected parameter, determine uplink number of repetition, including：
The UE of 14dBm power grades is modified RSRP measured values using RSRP biasings, and revised RSRP values=
RSRP measured values-RSRP is biased；
Using the revised RSRP values, corresponding CE Level are determined；
According to the CE Level and the correspondence of number of repetition, uplink number of repetition is determined.
Further, according to Reference Signal Received Power RSRP measured values, coverage enhancement grade CE Level and repetition time
Several correspondences and the corrected parameter, determine uplink number of repetition, including：
The UE of 14dBm power grades determines corresponding CE Level according to the RSRP measured values；
The determining CE Level are modified using the CE Level modifying factors k2, CE Level=CE after amendment
Level+k2, the CE Level+k2 are not more than the maximum CE Level of system configuration；
Using revised CE Level, it is secondary to determine that uplink repeats according to the correspondence of the CE Level and number of repetition
Number.
Further, it is further included after uplink number of repetition is determined：Last CE Level is selected to correspond to NPRACH resources
Random access procedure is carried out, repeating NPRACH according to the uplink number of repetition sends.
Further, the corrected parameter is issued by system intialization or by network side.
Further, the narrowband Physical Random Access Channel NPRACH configuration informations are included for 14dBm power grades
The NRPACH resources of UE configurations and the RSRP thresholdings of determining CE Level.
Further, it further includes：
The UE of 14dBm power grades determines corresponding CE Level according to the RSRP measured values；
According to the CE Level, uplink number of repetition is determined；
The CE Level is selected to correspond to NPRACH resources and carry out random access procedure, are repeated according to the uplink number of repetition
NPRACH is sent.
The number of repetition that the method for the present invention can be directed to the NPRACH of the UE of 14dBm power grades is modified, so as to
Meets the needs of NB-IOT is to coverage enhancement level.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in the embodiment of the present invention
Technical solution is clearly and completely described, it is clear that described embodiment is part of the embodiment of the present invention rather than complete
The embodiment in portion；It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the application can be with
It is combined with each other.Based on the embodiments of the present invention, those of ordinary skill in the art institute without creative efforts
The every other embodiment obtained, shall fall within the protection scope of the present invention.
One embodiment of the present of invention proposes a kind of method that uplink number of repetition is determined in narrowband Internet of Things, including：
Obtain corrected parameter and/or narrowband Physical Random Access Channel NPRACH configuration informations；
According to Reference Signal Received Power RSRP measured values, coverage enhancement grade CE Level and number of repetition correspondence and
The corrected parameter determines uplink number of repetition.
In one alternate embodiment, corrected parameter includes：Number of repetition modifying factor, RSRP biasings or CE
Level modifying factors.
In one alternate embodiment, according to Reference Signal Received Power RSRP measured values, coverage enhancement grade CE
The correspondence and the corrected parameter of Level and number of repetition, determine uplink number of repetition, including：
The UE of 14dBm power grades determines corresponding CE Level according to the RSRP measured values；
It is modified using number of repetition modifying factor number of repetition N corresponding to the CE Level, it is revised heavy
Multiple times N '=N*k1；
According to the CE Level and the correspondence of number of repetition, revised number of repetition N ' is mapped to nearest CE
In the corresponding numbers of repetition of Level, last CE Level grades and uplink number of repetition are determined.
In one alternate embodiment, according to Reference Signal Received Power RSRP measured values, coverage enhancement grade CE
The correspondence and the corrected parameter of Level and number of repetition, determine uplink number of repetition, including：
The UE of 14dBm power grades is modified RSRP measured values using RSRP biasings, and revised RSRP values=
RSRP measured values-RSRP is biased；
Using the revised RSRP values, corresponding CE Level are determined；
According to the CE Level and the correspondence of number of repetition, uplink number of repetition is determined.
In one alternate embodiment, according to Reference Signal Received Power RSRP measured values, coverage enhancement grade CE
The correspondence and the corrected parameter of Level and number of repetition, determine uplink number of repetition, including：
The UE of 14dBm power grades determines corresponding CE Level according to the RSRP measured values；
The determining CE Level are modified using the CE Level modifying factors k2, CE Level=CE after amendment
Level+k2, the CE Level+k2 are not more than the maximum CE Level of system configuration；
Using revised CE Level, it is secondary to determine that uplink repeats according to the correspondence of the CE Level and number of repetition
Number.
In one alternate embodiment, it is further included after uplink number of repetition is determined：Last CE Level is selected to correspond to
NPRACH resources carry out random access procedure, and repeating NPRACH according to the uplink number of repetition sends.
In one alternate embodiment, corrected parameter is issued by system intialization or by network side.
In one alternate embodiment, narrowband Physical Random Access Channel NPRACH configuration informations are included for 14dBm work(
The NRPACH resources of rate grade UE configurations and the RSRP thresholdings of determining CE Level.
In one alternate embodiment, it further includes：
The UE of 14dBm power grades determines corresponding CE Level according to the RSRP measured values；
According to the CE Level, uplink number of repetition is determined；
The CE Level is selected to correspond to NPRACH resources and carry out random access procedure, are repeated according to the uplink number of repetition
NPRACH is sent.
The number of repetition that the method for the present invention can be directed to the NPRACH of the UE of 14dBm power grades is modified, so as to
Meets the needs of NB-IOT is to coverage enhancement level.
Embodiment 1
For the corresponding NPRACH configurations of each CE level, one number of repetition for the UE of 14dBm power grades of configuration
Modifying factor k.The NPRACH number of repetition * modifying factors of the number of repetition of the UE of 4dBm power grades=existing configuration.It obtains
After getting new number of repetition, which is mapped in the his nearest corresponding numbers of repetition of three CE level,
Determine last CE level and number of repetition.Then the corresponding NPRACH resources of the CE level is selected to carry out random access mistake
Journey repeats NPRACH according to finally determining number of repetition and sends.
Embodiment 2
One RSRP biasing for the UE of 14dBm power grades of configuration is eventually used for determining the RSRP of CE level to measure
The RSRP-RSRP biasings arrived.Last CE level and number of repetition are determined with modified RSRP.Then the CE level are selected
Corresponding NPRACH resources carry out random access procedure, and repeating NPRACH according to finally determining number of repetition sends.
Embodiment 3
Are measured by RSRP, CE level is determined according to SIB broadcast configurations, determines last CE by the UE of 14dBm power grades, UE
Level is to measure the CE level+k, the CE level+k that determine of RSRP to be less than maximum CE level equal to system configuration.Its
Middle k can fixation can be configured (such as being fixed as 1, can also be configured in system broadcasts).Then select what this was finally determined
The corresponding NPRACH resources of CE level carry out random access procedure, and NPRACH hairs are repeated according to finally determining number of repetition
It send.
Embodiment 4
Independent NPRACH resources are configured in UE for 14dBm and the RSRP thresholdings of determining CE level, UE are measured according to RSRP
Value determines CE Level and corresponding number of repetition, and the corresponding NPRACH resources of the CE level is selected to carry out random access mistake
Journey repeats NPRACH according to last number of repetition and sends.
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 recorded in foregoing embodiments or carry out equivalent replacement to which part technical characteristic；
And these modification or replace, various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (9)
1. the method for uplink number of repetition is determined in a kind of narrowband Internet of Things, which is characterized in that including：
Obtain corrected parameter and/or narrowband Physical Random Access Channel NPRACH configuration informations；
According to Reference Signal Received Power RSRP measured values, coverage enhancement grade CE Level and number of repetition correspondence and
The corrected parameter determines uplink number of repetition.
2. according to the method described in claim 1, it is characterized in that, the corrected parameter includes：Number of repetition modifying factor,
RSRP is biased or CE Level modifying factors.
3. according to the method described in claim 2, it is characterized in that, according to Reference Signal Received Power RSRP measured values, covering
Enhance grade CE Level and correspondence and the corrected parameter of number of repetition, determine uplink number of repetition, including：
The UE of 14dBm power grades determines corresponding CE Level according to the RSRP measured values；
It is modified using number of repetition modifying factor number of repetition N corresponding to the CE Level, it is revised heavy
Multiple times N '=N*k1；
According to the CE Level and the correspondence of number of repetition, revised number of repetition N ' is mapped to nearest CE
In the corresponding numbers of repetition of Level, last CE Level grades and uplink number of repetition are determined.
4. according to the method described in claim 2, it is characterized in that, according to Reference Signal Received Power RSRP measured values, covering
Enhance grade CE Level and correspondence and the corrected parameter of number of repetition, determine uplink number of repetition, including：
The UE of 14dBm power grades is modified RSRP measured values using RSRP biasings, and revised RSRP values=
RSRP measured values-RSRP is biased；
Using the revised RSRP values, corresponding CE Level are determined；
According to the CE Level and the correspondence of number of repetition, uplink number of repetition is determined.
5. according to the method described in claim 2, it is characterized in that, according to Reference Signal Received Power RSRP measured values, covering
Enhance grade CE Level and correspondence and the corrected parameter of number of repetition, determine uplink number of repetition, including：
The UE of 14dBm power grades determines corresponding CE Level according to the RSRP measured values；
The determining CE Level are modified using the CE Level modifying factors k2, CE Level=CE after amendment
Level+k2, the CE Level+k2 are not more than the maximum CE Level of system configuration；
Using revised CE Level, according to the CE Level and the correspondence of number of repetition, it is secondary to determine that uplink repeats
Number.
6. according to the method described in claim 3~5 any one, which is characterized in that also wrapped after uplink number of repetition is determined
It includes：
Last CE Level is selected to correspond to NPRACH resources and carry out random access procedure, are repeated according to the uplink number of repetition
NPRACH is sent.
7. method according to claim 1 or 2, which is characterized in that the corrected parameter is by system intialization or by network
Side issues.
8. according to the method described in claim 1, it is characterized in that, the narrowband Physical Random Access Channel NPRACH matches confidence
Breath includes the RSRP thresholdings of the NRPACH resources and determining CE Level for 14dBm power grades UE configurations.
9. it according to the method described in claim 8, it is characterized in that, further includes：
The UE of 14dBm power grades determines corresponding CE Level according to the RSRP measured values；
According to the CE Level, uplink number of repetition is determined；
The CE Level is selected to correspond to NPRACH resources and carry out random access procedure, are repeated according to the uplink number of repetition
NPRACH is sent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611159835.7A CN108234095A (en) | 2016-12-15 | 2016-12-15 | A kind of method that uplink number of repetition is determined in narrowband Internet of Things |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611159835.7A CN108234095A (en) | 2016-12-15 | 2016-12-15 | A kind of method that uplink number of repetition is determined in narrowband Internet of Things |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108234095A true CN108234095A (en) | 2018-06-29 |
Family
ID=62650437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611159835.7A Pending CN108234095A (en) | 2016-12-15 | 2016-12-15 | A kind of method that uplink number of repetition is determined in narrowband Internet of Things |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108234095A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109168169A (en) * | 2018-08-31 | 2019-01-08 | 中国联合网络通信集团有限公司 | A kind of covering grade upgrade method and device |
| CN110234151A (en) * | 2019-05-05 | 2019-09-13 | 中国联合网络通信集团有限公司 | A kind of terminal access method and device |
| CN112752241A (en) * | 2019-10-31 | 2021-05-04 | 成都鼎桥通信技术有限公司 | Method and device for switching overlay mode of eMTC terminal |
| CN115551005A (en) * | 2022-10-09 | 2022-12-30 | 南京航空航天大学 | Method for configuring repetition times in NB-IoT uplink transmission |
| CN116684988A (en) * | 2023-07-27 | 2023-09-01 | 上海移芯通信科技股份有限公司 | Coverage enhancement level selection method, system, equipment and storage medium |
-
2016
- 2016-12-15 CN CN201611159835.7A patent/CN108234095A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109168169A (en) * | 2018-08-31 | 2019-01-08 | 中国联合网络通信集团有限公司 | A kind of covering grade upgrade method and device |
| CN109168169B (en) * | 2018-08-31 | 2021-10-19 | 中国联合网络通信集团有限公司 | Coverage grade upgrading method and device |
| CN110234151A (en) * | 2019-05-05 | 2019-09-13 | 中国联合网络通信集团有限公司 | A kind of terminal access method and device |
| CN110234151B (en) * | 2019-05-05 | 2021-03-12 | 中国联合网络通信集团有限公司 | Terminal access method and device |
| CN112752241A (en) * | 2019-10-31 | 2021-05-04 | 成都鼎桥通信技术有限公司 | Method and device for switching overlay mode of eMTC terminal |
| CN112752241B (en) * | 2019-10-31 | 2022-11-11 | 成都鼎桥通信技术有限公司 | Method and device for switching overlay mode of eMTC terminal |
| CN115551005A (en) * | 2022-10-09 | 2022-12-30 | 南京航空航天大学 | Method for configuring repetition times in NB-IoT uplink transmission |
| CN115551005B (en) * | 2022-10-09 | 2023-10-27 | 南京航空航天大学 | Method for configuring repetition times in NB-IoT uplink transmission |
| CN116684988A (en) * | 2023-07-27 | 2023-09-01 | 上海移芯通信科技股份有限公司 | Coverage enhancement level selection method, system, equipment and storage medium |
| CN116684988B (en) * | 2023-07-27 | 2023-10-24 | 上海移芯通信科技股份有限公司 | Coverage enhancement level selection method, system, equipment and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108234095A (en) | A kind of method that uplink number of repetition is determined in narrowband Internet of Things | |
| KR102208356B1 (en) | Method And Apparatus For Controlling Interference In Heterogeneous Network System | |
| BR112018000321A2 (en) | signaling over air for greater reuse factor in a shared radio frequency spectrum band | |
| US20170064719A1 (en) | System and method for heterogenous spectrum sharing between commercial cellular operators and legacy incumbent users in wireless networks | |
| CN105307190B (en) | A kind of RSSI configuration method, measurement method and relevant device based on unlicensed spectrum | |
| BR112013006930A2 (en) | Cell information acquisition to improve network operation in heterogeneous environment | |
| CN107708178A (en) | Method for retransmitting information and base station | |
| RU2009120602A (en) | RESOURCE MANAGEMENT DEPENDING ON THE SUB-RANGE | |
| RU2012108046A (en) | METHOD FOR DEFINING TRANSMISSION POWER IN DOWNLOAD | |
| RU2015128808A (en) | DYNAMIC CONFIGURATION OF THE DEPENDENT LINK / DOWNLINE TDD USING DCI | |
| US9137692B2 (en) | Load estimation in a user equipment | |
| MX2018006711A (en) | Apparatus and method for paging user equipment, and communication system. | |
| US20160330699A1 (en) | Transmission power for device-to-device communication | |
| CN103945513B (en) | Poewr control method and device | |
| CN105307256B (en) | A kind of D2D transmission power control method and device | |
| WO2011052665A1 (en) | Large-cell base station and communication control method | |
| JP2012138809A5 (en) | ||
| CN104349446B (en) | A kind of ascending power control method and device | |
| BR112018076427A2 (en) | Identification of resource pool usage associated with different resource restriction levels in a radio frequency spectrum band | |
| EP2884800A1 (en) | Signal measurement method and device | |
| CN110121853A (en) | Network node and client device for measure channel state information | |
| Ni et al. | Throughput analysis for downlink resource reusing D2D communications in cellular networks | |
| KR20170065612A (en) | Weighted aggregation-based method and device for transmitting control signals | |
| US9451557B2 (en) | Base station, communication system, and communication method | |
| US9674793B2 (en) | Walk-assisted automated AP coverage adjustment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180629 |