CN107347216A - The distribution method of up-downgoing resource in a kind of big connection Internet of Things of 5G - Google Patents
The distribution method of up-downgoing resource in a kind of big connection Internet of Things of 5G Download PDFInfo
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- CN107347216A CN107347216A CN201710440070.2A CN201710440070A CN107347216A CN 107347216 A CN107347216 A CN 107347216A CN 201710440070 A CN201710440070 A CN 201710440070A CN 107347216 A CN107347216 A CN 107347216A
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000013468 resource allocation Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 description 13
- 238000004891 communication Methods 0.000 description 7
- 238000004088 simulation Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 101100545229 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ZDS2 gene Proteins 0.000 description 1
- 101100167209 Ustilago maydis (strain 521 / FGSC 9021) CHS8 gene Proteins 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000010267 cellular communication Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
- H04W72/563—Allocation or scheduling criteria for wireless resources based on priority criteria of the wireless resources
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
- H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
Abstract
The invention discloses the distribution method of up-downgoing resource in a kind of big connection Internet of Things of 5G, comprise the following steps：1) all user terminals being linked into the big connection Internet of Things of 5G are divided into several cover type by base station according to channel information；2) when user terminal selecting random access resource RACH initiates random access request to base station, base station receives the random access request that user terminal sends over, and distribute corresponding frequency domain and time-domain resource to user terminal according to the cover type of each user terminal, then the result of distribution is sent to user terminal, the distribution of up-downgoing resource in the big connection Internet of Things of 5G is completed, this method can effectively alleviate the problem of user terminal accesses congestion in the big connection Internet of Things networks of 5G.
Description
Technical field
The invention belongs to the big connection Internet of Things communication technical fields of 5G, are related to up-downgoing in a kind of big connection Internet of Things of 5G and provide
The distribution method in source.
Background technology
The big connection Internet of Things communications of 5G refer to interconnection and the data transfer of equipment room, are defined as not needing human intervention
Can be to carry out the communication system of equipment room data transfer.With the fast development of mobile Internet, the big connection Internet of Things of 5G
Demand for services increases while explosion type is presented, and the big connection Internet of Things of 5G will provide preferably service in various fields.The big connections of 5G
The research of Internet of Things network is by development for many years, it will in 2020 network architectures for focusing on 5G and the group together with cellular network
Into newest communication network architecture, turn into the important component of 5G communications and 5G communication networks are formed together with cellular communication.
When the big connection internet of things equipment of magnanimity 5G is when Intra-cell is affixed one's name to and the same period is more intensively accessing network, network is just
Congestion can be faced and data traffic is increased sharply, and the congestion overload of network inevitably causes unnecessary access failure
And the reduction of network capacity.
The content of the invention
The shortcomings that it is an object of the invention to overcome above-mentioned prior art, there is provided in a kind of big connection Internet of Things of 5G up and down
The distribution method of row resource, this method can effectively alleviate user terminal in the big connection Internet of Things networks of 5G and access asking for congestion
Topic.
To reach above-mentioned purpose, in the big connection Internet of Things of 5G of the present invention the distribution method of up-downgoing resource include with
Lower step：
1) all user terminals being linked into the big connection Internet of Things of 5G are divided into several by base station according to channel information
Cover type；
2) when user terminal selecting random access resource RACH initiates random access request to base station, it is whole that base station receives user
Hold the random access request that sends over, and according to the cover type of each user terminal to user terminal distribute corresponding frequency domain and
Time-domain resource, then the result of distribution is sent to user terminal, complete the distribution of up-downgoing resource in the big connection Internet of Things of 5G.
All user terminals are divided into cover type class1, cover type class, cover type according to channel information
Class3 and cover type class4, wherein, the priority of affiliated cover type class1 user terminal, affiliated cover type
Class user terminal priority, affiliated cover type class3 user terminal priority and affiliated cover type class4
User terminal priority reduce successively.
The higher user terminal of priority preferentially obtains resource；When several user terminals possess equal priority, often
Individual user terminal has identical authority, then base station randomly selects user terminal and carries out resource allocation；When frequency domain and time-domain resource
After being fully assigned, then base station sets the stand-by period, and the user terminal for being not previously allocated within the stand-by period resource is not initiated
Random access request.
The random access request includes the type of service of user terminal and the size of portfolio.
Base station is allocated running time-frequency resource according to the business datum size of user terminal.
Step 2) also includes, and when user terminal receives the allocation result that base station sends over, is then sent to base station anti-
Feedback signal, signals base have been received by allocation result.
The invention has the advantages that：
The distribution method of up-downgoing resource, first will be all in concrete operations in the big connection Internet of Things of 5G of the present invention
User terminal is divided into some cover types according to channel information, is then distributed according to each cover type to user terminal corresponding
Frequency domain and time-domain resource, the preferable user of channel information is set preferentially to get time-domain resource, so as to alleviate the big connection Internet of Things of 5G
User terminal accesses the problem of congestion in network, simple, convenient.
Brief description of the drawings
Fig. 1 is protenchyma networking framework figure；
Fig. 2 is power system capacity simulation curve figure；
Fig. 3 is report probability of failure curve maps.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings：
With reference to figure 1, the distribution method of up-downgoing resource comprises the following steps in the big connection Internet of Things of 5G of the present invention：
1) all user terminals being linked into the big connection Internet of Things of 5G are divided into several by base station according to channel information
Cover type；
2) when user terminal selecting random access resource RACH initiates random access request to base station, it is whole that base station receives user
Hold the random access request that sends over, and according to the cover type of each user terminal to user terminal distribute corresponding frequency domain and
Time-domain resource, then the result of distribution is sent to user terminal, complete the distribution of up-downgoing resource in the big connection Internet of Things of 5G.
All user terminals are divided into cover type class1, cover type class, cover type according to channel information
Class3 and cover type class4, wherein, the priority of affiliated cover type class1 user terminal, affiliated cover type
Class user terminal priority, affiliated cover type class3 user terminal priority and affiliated cover type class4
User terminal priority reduce successively.
The higher user terminal of priority preferentially obtains resource；When several user terminals possess equal priority, often
Individual user terminal has identical authority, then base station randomly selects user terminal and carries out resource allocation；When frequency domain and time-domain resource
After being fully assigned, then base station sets the stand-by period, and the user terminal for being not previously allocated within the stand-by period resource is not initiated
Random access request.
The random access request includes the type of service of user terminal and the size of portfolio, and base station is whole according to user
The business datum size at end is allocated running time-frequency resource.
Step 2) also includes, and when user terminal receives the allocation result that base station sends over, is then sent to base station anti-
Feedback signal, signals base have been received by allocation result.
In gsm system, more than 144dB user terminal can not be linked into gsm system, in the big connection Internet of Things of 5G
Need to realize in net system and more than 164dB user terminal is accessed, it is therefore desirable to which 164dB user terminal is divided into covering
In type coverage；When dividing cover type, it then follows in 3GPP 45.820 miscellaneous service divide method, i.e., according to
40%th, 40%, 15% and 5% ratio carries out being divided into 4 kinds of different cover types.
Downlink resource is assigned as：Select MCS=3, CBS=0, subcarrier N=1；Descending physical layer has 200kHz letter
Road resource, in the downstream direction, channel are all divided into narrow band channel and communicated：It is descending to be divided into 48 sub-channels, descending letter
There is 10kHz protection bandwidth on the both sides in road；Downlink is transmitted using OFDMA；Descending modulation and coded system are such as
Shown in table 1, in downlink data transmission, the size of data that base station is transferred to user terminal is 20Bytes, because of MCS=3, is repeated
The factor is that 1, the PDSCH encoding block methods of salary distribution are as shown in table 2：
Table 1
Table 2
In most of Internet of things system, user terminal remains static, therefore channel is constant, so MCS0~
MCS3 effect is identical, it is not necessary to repetition factor, in order to reduce the complexity of Internet of Things, the flexibility of Internet of Things is improved,
Modulation coding mode selection is MCS=3；For coded block size CBS index=0, it is big so can once to send 200bit
Small data, the NC business size of base station generation is 20Bytes, and now during CBS=0, downlink data is transmitted in enough base stations, therefore
Base station possesses running time-frequency resource and 20Bytes is once all transferred to the big connection internet of things equipment of 5G；Due to it is descending using
OFDMA carries out data transmission, and in MCS=3, the running time-frequency resource for transmitting 200bits is fixed.If select multiple subcarriers
It is transmitted, transmission time is then correspondingly reduced, N selection 1,2 or 4.In order to reduce user terminal and base station processing information
Complexity, N=1 is selected, base station all uses the set time when transmitting downlink data every time.
Ascending resource, MCS=6 is selected, the big connection Internet of Things of 5G optimizes configuration according to power system capacity is maximized, descending
Modulation and coded system it is as shown in table 2, up physical layer has a 200kHz channel resource, and on up-downlink direction, channel is all
It is divided into narrow band channel progress communication uplink and is divided into 36 sub-channels, up-link is transmitted using FDMA so that multiple
Equipment can carry out data transmission simultaneously, be advantageous to improve network capacity.Meanwhile multiple carrier waves can polymerize together, base station can
To distribute broader bandwidth to user terminal, bandwidth carrier is aggregated into, promoting transmission rate simultaneously reduces delay.The tune of up channel
Coded system processed is as shown in table 1, wherein, MCS0 and MCS1 access for uplink random, and other several MCS are configured to 5G Dalian
Internet of things equipment is connect to be used for carrying out data transmission.After user terminal sends data, descending control of the base station in odd numbered sub-frames
ACK confirmations and corresponding Downlink Control Information are sent on channel PDCCH channels.One in the big connection Internet of things system of 5G
Subframe is 160ms, and 320ms is mutually divided between odd numbered sub-frames.In order to lift the capacity of network (capacity), base station system 5G is big
Connection internet of things equipment can make full use of the channel resource of distribution to be transmitted data, therefore select code check when selecting MCS
For 2/3 coded system, MCS=6 is selected, the time of such a packet transmission is 2 subframes, can make full use of base station
The resource for distributing to equipment carries out data transmission.
Table 3
The configuration of uplink encoding block is as shown in table 4, can be in two subframes using CBS=15 in analogue system
The middle transmission for completing an encoding block, such equipment can effectively utilize the running time-frequency resource of distribution.
Table 4
Transmission time is single encoded piece of transmission time, and the size of data of during this period of time equipment transmission is according to coding
Block function is specified, in table shown in the specific formula for calculation of map (x) functions such as formula (1)：
Wherein, round (x) represents the integer closest to x, shown in the result such as formula (2) in x=0.5.
Round (0.5)=1 (2)
Fig. 2 is power system capacity simulation curve, aims of systems capacity capacity during 52547 equipment of system deployment, theoretical
Curve is with the increase of number of users in each sector and straight line increase, as shown in Fig. 2 the desired value during emulation is set is every
The user of sector 52547, from fig. 2 it can be seen that when having 52547 users in every sector, emulation platform can be fine
Satisfaction requirement, the reports and theoretical value that emulation platform is properly received be more or less the same, and meets the big connection Internet of Things portions of following 5G
The needs of administration, at the same be emphasized that 5G it is big connection Internet of things system frequency band multiplexing factor be 1/3, completely with it is existing
System globe area, each sector does not have identical frequency to reduce co-channel interference in cell, and frequency band used at the same time only has 200kHz,
Existing frequency bandwidth is made full use of, in the big connection Internet of things system of 5G, the transmission power of equipment is 23dB (200mW), complete
Complete compatible existing battery system, it is ensured that system can be realized has carrying for 20dB for traditional GRPS in coverage performances
Rise, the requirement of 20 years can be used by also meeting battery.
Fig. 3 is report probability of failure curves, and 5G is big, and connection Internet of Things is not successfully accessed to have many reasons in network
Cause, 1) there is no in network enough RACH RACH to be available for the big connection internet of things equipment of 5G to initiate Stochastic accessing please
Ask, cause access failure, there are 4 RACH RACH in each sector, if having more than 4 in current time frame
User initiates random access request, then necessarily has at least one user and can not obtain RACH RACH and is transmitted
Random access request, failure access at least once can be caused；2) when the big connection internet of things equipment of 5G is linked among network,
Network does not have channel resource allocation to give 5G in equipment cell big connection internet of things equipment, causes access failure, the big connection Internet of Things of 5G
The statistical module of network simulation platform needs to count the big connection Internet of Things of 5G before running time-frequency resource is successfully obtained, and counts in access
During all failures number.From figure 3, it can be seen that when targeted customer's number is 52547, the probability of failure of system compares
It is small, it is ensured that user is linked among system, meets the vision that the big connection Internet of Things million of 5G connects.
Claims (6)
1. the distribution method of up-downgoing resource in a kind of big connection Internet of Things of 5G, it is characterised in that comprise the following steps：
1) all user terminals being linked into the big connection Internet of Things of 5G are divided into several covering by base station according to channel information
Type；
2) user terminal selecting random access resource RACH initiates random access request to base station, and base station receives user terminal and sent
The random access request to come over, and distribute corresponding frequency domain and time domain money to user terminal according to the cover type of each user terminal
Source, then the result of distribution is sent to user terminal, complete the distribution of up-downgoing resource in the big connection Internet of Things of 5G.
2. the distribution method of up-downgoing resource in the big connection Internet of Things of 5G according to claim 1, it is characterised in that all
User terminal is divided into cover type class1, cover type class, cover type class3 and covering class according to channel information
Type class4, wherein, the priority of affiliated cover type class1 user terminal, affiliated cover type class user are whole
Hold priority, affiliated cover type class3 user terminal priority and affiliated cover type class4 user terminal preferential
Level reduces successively.
3. the distribution method of up-downgoing resource in the big connection Internet of Things of 5G according to claim 1, it is characterised in that preferential
The higher user terminal of level preferentially obtains resource；When several user terminals possess equal priority, each user terminal
There is identical authority, then base station randomly selects user terminal and carries out resource allocation；After frequency domain and time-domain resource are fully assigned,
Then base station sets the stand-by period, and the user terminal for being not previously allocated within the stand-by period resource does not initiate random access request.
4. the distribution method of up-downgoing resource in the big connection Internet of Things of 5G according to claim 1, it is characterised in that described
Random access request includes the type of service of user terminal and the size of portfolio.
5. the distribution method of up-downgoing resource in the big connection Internet of Things of 5G according to claim 4, it is characterised in that base station
Running time-frequency resource is allocated according to the business datum size of user terminal.
6. the distribution method of up-downgoing resource in the big connection Internet of Things of 5G according to claim 1, it is characterised in that step
2) also include, when user terminal receives the allocation result that base station sends over, then send feedback signal to base station, inform base
Station has been received by allocation result.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710440070.2A CN107347216B (en) | 2017-06-12 | 2017-06-12 | Method for allocating uplink and downlink resources in 5G large-connection Internet of things |
| PCT/CN2017/110632 WO2018227868A1 (en) | 2017-06-12 | 2017-11-13 | Uplink and downlink resources allocation method in 5g massive internet of things |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710440070.2A CN107347216B (en) | 2017-06-12 | 2017-06-12 | Method for allocating uplink and downlink resources in 5G large-connection Internet of things |
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| Publication Number | Publication Date |
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| CN107347216A true CN107347216A (en) | 2017-11-14 |
| CN107347216B CN107347216B (en) | 2020-06-19 |
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| CN201710440070.2A Active CN107347216B (en) | 2017-06-12 | 2017-06-12 | Method for allocating uplink and downlink resources in 5G large-connection Internet of things |
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| WO (1) | WO2018227868A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2020029310A1 (en) * | 2018-08-09 | 2020-02-13 | Oppo广东移动通信有限公司 | Data transmission method and device, and terminal |
| CN112867168A (en) * | 2019-11-27 | 2021-05-28 | 中国移动通信集团陕西有限公司 | High-concurrency access method and device for narrow-band Internet of things, computing equipment and storage medium |
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| WO2016086982A1 (en) * | 2014-12-03 | 2016-06-09 | Huawei Technologies Duesseldorf Gmbh | Method to prioritize random access with preamble coding |
| US20170064743A1 (en) * | 2015-08-28 | 2017-03-02 | Qualcomm Incorporated | Random access channel design for narrowband wireless communication |
| US9661663B1 (en) * | 2016-03-16 | 2017-05-23 | Telefonaktiebolaget Lm Ericsson (Publ) | Network access of a wireless device to a communications network |
| CN106817775A (en) * | 2015-11-27 | 2017-06-09 | 华为技术有限公司 | Distributed OFDMA accidental access methods, AP and STA |
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2017
- 2017-06-12 CN CN201710440070.2A patent/CN107347216B/en active Active
- 2017-11-13 WO PCT/CN2017/110632 patent/WO2018227868A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016086982A1 (en) * | 2014-12-03 | 2016-06-09 | Huawei Technologies Duesseldorf Gmbh | Method to prioritize random access with preamble coding |
| US20170064743A1 (en) * | 2015-08-28 | 2017-03-02 | Qualcomm Incorporated | Random access channel design for narrowband wireless communication |
| CN106817775A (en) * | 2015-11-27 | 2017-06-09 | 华为技术有限公司 | Distributed OFDMA accidental access methods, AP and STA |
| US9661663B1 (en) * | 2016-03-16 | 2017-05-23 | Telefonaktiebolaget Lm Ericsson (Publ) | Network access of a wireless device to a communications network |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11546945B2 (en) | 2014-08-20 | 2023-01-03 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Data transmission method and apparatus, and terminal |
| WO2020029310A1 (en) * | 2018-08-09 | 2020-02-13 | Oppo广东移动通信有限公司 | Data transmission method and device, and terminal |
| CN112867168A (en) * | 2019-11-27 | 2021-05-28 | 中国移动通信集团陕西有限公司 | High-concurrency access method and device for narrow-band Internet of things, computing equipment and storage medium |
| CN112867168B (en) * | 2019-11-27 | 2024-03-22 | 中国移动通信集团陕西有限公司 | High concurrency access method, device, computing equipment and storage medium for narrowband Internet of things |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107347216B (en) | 2020-06-19 |
| WO2018227868A1 (en) | 2018-12-20 |
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