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1、将咖啡屋学习模式应用于小学生的作文教学中，落实到作文教学的等各个环节，充分激发了学生写作的主动性和积极性，加强了学生间的了解与沟通，培养了良好的写作习惯，提高了学生的写作水平。5G基站系统开局与维护-5G关键技术（4）Uplink and downlink decoupling and BWP4G改变生活5G改变社会将咖啡屋学习模式应用于小学生的作文教学中，落实到作文教学的等各个环节，充分激发了学生写作的主动性和积极性，加强了学生间的了解与沟通，培养了良好的写作习惯，提高了学生的写作水平。5G关键技术（四）0102Decoupling of UL and DLBWP将咖啡屋学习模式应用于小学生
2、的作文教学中，落实到作文教学的等各个环节，充分激发了学生写作的主动性和积极性，加强了学生间的了解与沟通，培养了良好的写作习惯，提高了学生的写作水平。Background of Uplink And Downlink DecouplingC-band has the characteristic of band abundance,which is the golden band for 5G eMBB.Due to the unreasonable distribution of uplink and downlink time slots，the signal coverage is unb
3、alanced and uplink coverage is limited.These are both bottlenecks for 5G deployment.将咖啡屋学习模式应用于小学生的作文教学中，落实到作文教学的等各个环节，充分激发了学生写作的主动性和积极性，加强了学生间的了解与沟通，培养了良好的写作习惯，提高了学生的写作水平。Definition Of Uplink And Downlink DecouplingUplink and downlink decoupling redefines a new spectrum matching（频谱配比）method,which e
4、nables downlink data to be transmitted in C-band and uplink data to be transmitted in sub-3G,thus improving uplink coverage.将咖啡屋学习模式应用于小学生的作文教学中，落实到作文教学的等各个环节，充分激发了学生写作的主动性和积极性，加强了学生间的了解与沟通，培养了良好的写作习惯，提高了学生的写作水平。Network ArchitectureDue to the uplink and downlink time slot ratio of NR and the large d
5、ifference between uplink and downlink power of UE/gNB,the uplink and downlink coverage of 3.5GHz and 4.9ghz bands is unbalanced,and the limited uplink coverage has become the bottleneck of 5g deployment将咖啡屋学习模式应用于小学生的作文教学中，落实到作文教学的等各个环节，充分激发了学生写作的主动性和积极性，加强了学生间的了解与沟通，培养了良好的写作习惯，提高了学生的写作水平。Network Ar
6、chitectureNR uplink and downlink decoupling defines a new spectrum matching method,which enables downlink data to be transmitted in frequency bands such as 3.5GHz and 4.9ghz,while uplink data is transmitted in low frequency bands such as 1.8GHz,thereby improving uplink coverage将咖啡屋学习模式应用于小学生的作文教学中，落
7、实到作文教学的等各个环节，充分激发了学生写作的主动性和积极性，加强了学生间的了解与沟通，培养了良好的写作习惯，提高了学生的写作水平。（2）小区边缘用户体验得到改善Improved cell edge user experience好处：Advantages（1）NR小区边缘上行吞吐率提升Uplink throughput rate increase of NR cell edge（3）扩大NR小区上行覆盖，接入用户数增加。Expand NR cell uplink coverage and increase in the number of access users.将咖啡屋学习模式应用于小学
8、生的作文教学中，落实到作文教学的等各个环节，充分激发了学生写作的主动性和积极性，加强了学生间的了解与沟通，培养了良好的写作习惯，提高了学生的写作水平。5G关键技术（四）0102Decoupling of UL and DLBWP将咖啡屋学习模式应用于小学生的作文教学中，落实到作文教学的等各个环节，充分激发了学生写作的主动性和积极性，加强了学生间的了解与沟通，培养了良好的写作习惯，提高了学生的写作水平。功率之痛What solutions have we learned to solve the problem of the limited power on the uplink？Decoupl
9、ing of UL and DLDFT-S-OFDM将咖啡屋学习模式应用于小学生的作文教学中，落实到作文教学的等各个环节，充分激发了学生写作的主动性和积极性，加强了学生间的了解与沟通，培养了良好的写作习惯，提高了学生的写作水平。1、eMBB：增强型移动宽带Network speed should be faster,faster and faster!2、mMTC：大规模机器类型通信Not only do people communicate with each other,but machines also communicate with each other!3、uRLLC：超可靠和低延
10、迟通信Industrial automation and automatic driving are the future trend!Ultra-large bandwidth is only used in eMBBscenarios,while mMTC and uRLLC do not need too high rate and too large bandwidth.Background 将咖啡屋学习模式应用于小学生的作文教学中，落实到作文教学的等各个环节，充分激发了学生写作的主动性和积极性，加强了学生间的了解与沟通，培养了良好的写作习惯，提高了学生的写作水平。Definition
11、 of BWPBandwidth Part（BWP）is an important concept in 5G and can be considered as UEs working bandwidth.A continuous bandwidth resource allocated（分配）to UE by network is a necessary configuration（配置）for 5G UE to access NR network.BWP是5G NR中一个重要的概念，BWP可理解为UE的工作带宽。网络侧给UE分配的一段连续的带宽资源，它是5G UE接入NR网络的必备配置。将
12、咖啡屋学习模式应用于小学生的作文教学中，落实到作文教学的等各个环节，充分激发了学生写作的主动性和积极性，加强了学生间的了解与沟通，培养了良好的写作习惯，提高了学生的写作水平。Application scenarios:场景1：对接收机带宽(如20MHz)小于整个系统带宽(如100MHz)的UE提供支持。场景2：通过不同带宽大小的BWP之间的转换和自适应来降低UE的电量消耗。场景3：不同BWP，配置不同参数集，承载不同业务。Scenario 1:support UE whose receiver bandwidth(such as 20MHz)is less than the bandwidth
13、 of the whole system(such as 100MHz).Scenario 2:reduce the power consumption of UE through the conversion and adaptation between BWPs with different bandwidth sizes.Scenario 3:different BWPs are configured with different parameter sets to carry different businesses.将咖啡屋学习模式应用于小学生的作文教学中，落实到作文教学的等各个环节
14、，充分激发了学生写作的主动性和积极性，加强了学生间的了解与沟通，培养了良好的写作习惯，提高了学生的写作水平。场景4：载波中可以配置不连续的频段。场景5：载波中可以预留频段，用于支持尚待定义的传输格式。Application scenarios:Scenario 4:discontinuous frequency bands can be configured in the carrier.Scenario 5:the frequency band can be reserved in the carrier to support the transmission format to be de
15、fined.将咖啡屋学习模式应用于小学生的作文教学中，落实到作文教学的等各个环节，充分激发了学生写作的主动性和积极性，加强了学生间的了解与沟通，培养了良好的写作习惯，提高了学生的写作水平。Adaptive Bandwidth Of BWPLook at the figure and analyze how the three situations are configured?For what scenario?BWP1:due to the large traffic volume of UE,GNB configures ue with 15KHz subcarrier interval
16、and 40MHz bandwidth;将咖啡屋学习模式应用于小学生的作文教学中，落实到作文教学的等各个环节，充分激发了学生写作的主动性和积极性，加强了学生间的了解与沟通，培养了良好的写作习惯，提高了学生的写作水平。Adaptive Bandwidth Of BWPLook at the figure and analyze how the three situations are configured?For what scenario?BWP2:due to the small traffic volume of UE,GNB configures the UE with 15KHz su
17、bcarrier interval and 10MHz bandwidth to meet the basic communication of UE;将咖啡屋学习模式应用于小学生的作文教学中，落实到作文教学的等各个环节，充分激发了学生写作的主动性和积极性，加强了学生间的了解与沟通，培养了良好的写作习惯，提高了学生的写作水平。Adaptive Bandwidth Of BWPLook at the figure and analyze how the three situations are configured?For what scenario?BWP3:GNB finds that th
18、ere is a wide range of frequency selective fading within the bandwidth of bwp1 or that resources are scarce within the frequency range of bwp1,so it configures a new bandwidth for UE.将咖啡屋学习模式应用于小学生的作文教学中，落实到作文教学的等各个环节，充分激发了学生写作的主动性和积极性，加强了学生间的了解与沟通，培养了良好的写作习惯，提高了学生的写作水平。Classification of BWPAccordin
19、g to the configuration scenario of BWP,it is divided into the following categories:Initial BWP:the BWP used in the initial access phase of UE(obtained through system messages).Dedicated BWP:BWP configured by UE in RRC connection state;The protocol stipulates that one UE can configure up to four dedi
20、cated bwps through RRC signaling.Active bwp:the BWP activated by UE at a certain time in RRC connection state is one of the dedicated BWP.The agreement stipulates that UE can only activate one configured dedicated BWP at a certain time in RRC connection state.Default bwp:when the UE is in RRC connec
21、tion state,when its BWP inactivity timer times out,the BWP that the UE is working on is also one of the dedicated bwps.The RRC signaling indicates which configured dedicated BWP the UE uses as the default BWP.将咖啡屋学习模式应用于小学生的作文教学中，落实到作文教学的等各个环节，充分激发了学生写作的主动性和积极性，加强了学生间的了解与沟通，培养了良好的写作习惯，提高了学生的写作水平。Con
22、figuration Configuration requirements of BWPrequirements of BWP On each carrier,the UE can be configured with four BWPs,but only one of them is active at a certain time.The active BWP indicates the working bandwidth adopted by the UE,while the UE will not receive PDSCH,PDCCH or CSI-RS outside the BW
23、P.Downlink Downlink 将咖啡屋学习模式应用于小学生的作文教学中，落实到作文教学的等各个环节，充分激发了学生写作的主动性和积极性，加强了学生间的了解与沟通，培养了良好的写作习惯，提高了学生的写作水平。Configuration requirements of BWPUplink Uplink On each carrier,one UE can be configured with four BWPs,but only one of them is active at a certain time.If the UE has SUL,it can be configured w
24、ith another four BWPs,But only one of them can be activated at the same time.Except BWP,UE does not transmit on PUSCH or PUCCH.For the active cell,UE does not transmit SRS outside BWP.将咖啡屋学习模式应用于小学生的作文教学中，落实到作文教学的等各个环节，充分激发了学生写作的主动性和积极性，加强了学生间的了解与沟通，培养了良好的写作习惯，提高了学生的写作水平。Technical advantages of BWP1
25、.UE does not need to support all bandwidth,but only needs to meet the minimum bandwidth requirements,which is conducive to the development of low-cost terminals and promote industrial development;2.When the traffic volume of UE is small,UE can switch to low bandwidth operation,which can significantly reduce power consumption;3.When 5g adds new technology,it can directly run the new technology on the new BWP,ensuring the forward compatibility of the system;4.Adapt to business needs and dynamically configure BWP for business.若素素材若素素材谢谢