WO2017035937A1 - 一种传输的方法及终端 - Google Patents

一种传输的方法及终端 Download PDF

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Publication number
WO2017035937A1
WO2017035937A1 PCT/CN2015/093514 CN2015093514W WO2017035937A1 WO 2017035937 A1 WO2017035937 A1 WO 2017035937A1 CN 2015093514 W CN2015093514 W CN 2015093514W WO 2017035937 A1 WO2017035937 A1 WO 2017035937A1
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WIPO (PCT)
Prior art keywords
base station
terminal
average power
resource block
resource
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English (en)
French (fr)
Inventor
乔梁
李明菊
张晨璐
付婷
邓一伟
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • 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
    • H04W16/14—Spectrum sharing arrangements between different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a transmission method and terminal.
  • 3GPP 3rd Generation Partnership Project
  • 3GPP 3rd Generation Partnership Project
  • 3GPP is discussing how to use unlicensed spectrum, such as the 2.4 GHz and 5 GHz bands, with the help of licensed spectrum.
  • unlicensed spectrums are currently used primarily in systems such as Wireless-Fidelity (Wi-Fi), Bluetooth, radar, and medical.
  • Wi-Fi Wireless-Fidelity
  • LTE Long Term Evolution
  • Seamless switching between licensed and unlicensed bands For the user, this means a better broadband experience, higher speed, better stability and better mobility.
  • the anti-interference level of the LTE network is ensured, so the uplink and downlink transmissions of the base station and the user do not need to consider whether there are base stations or users in the surrounding data. transmission.
  • access technologies used on unlicensed spectrum such as Wi-Fi technology, have weak anti-interference capabilities. If the LTE network is used on an unlicensed band, regardless of whether other devices are using unlicensed bands, it will cause great interference to the Wi-Fi device.
  • the Wi-Fi device cannot perform data transmission, and can only wait until the LTE service transmission is completed, and can only transmit when the channel is detected to be in an idle state. This results in the LTE network not coexisting with existing networks using unlicensed bands when using unlicensed bands.
  • a technical problem to be solved by embodiments of the present invention is to provide a method and terminal for transmission. To solve the problem that the LTE network cannot coexist with the existing network using the unlicensed band.
  • the first aspect of the embodiments of the present invention provides a method for transmitting, include:
  • the base station is notified to receive the resource allocation notification message returned by the base station, where the resource allocation notification message includes the resource block allocated by the base station to the terminal. information;
  • the resources allocated by the base station are used for service transmission.
  • the method Before calculating the average power of the corresponding frequency bandwidth according to the resource block information, the method further includes:
  • the physical downlink control channel is monitored, and the preset channel busy state threshold is obtained from the scheduling information searched by the specific terminal search space; or
  • the average power of the corresponding frequency bandwidth is calculated according to the resource block information, including:
  • the power of each resource block is accumulated, and the average power of the corresponding frequency bandwidth of each resource block is obtained by dividing the number of the respective resource blocks.
  • the average power of the corresponding frequency bandwidth is calculated according to the resource block information, including:
  • the power of each resource block is accumulated, divided by the number of resource blocks in the entire bandwidth, and the average power of the entire bandwidth is obtained.
  • the process jumps to the step of calculating the average power of the corresponding frequency bandwidth according to the resource block information.
  • a second aspect of the embodiments of the present invention provides a terminal, including:
  • An acquiring unit configured to: if a terminal in a long-term evolution network needs to transmit uplink data by using an unlicensed frequency band, notify a base station to receive a resource allocation notification message returned by the base station, where the resource allocation notification message includes the base station is Resource block information allocated by the terminal;
  • a calculating unit configured to calculate an average power of the corresponding frequency bandwidth according to the resource block information
  • a determining unit configured to determine whether the average power reaches a preset channel busy state threshold
  • a transmitting unit configured to use the resource allocated by the base station to perform service transmission if the average power does not reach a preset channel busy state threshold.
  • the obtaining unit is further configured to:
  • the physical downlink control channel is monitored, and the preset channel busy state threshold is obtained from the scheduling information searched by the specific terminal search space; or
  • the calculating unit calculates an average power of the corresponding frequency bandwidth according to the resource block information, specifically for:
  • the power of each resource block is accumulated, and the average power of the corresponding frequency bandwidth of each resource block is obtained by dividing the number of the respective resource blocks.
  • the calculating unit calculates an average power of the corresponding frequency bandwidth according to the resource block information, specifically for:
  • the power of each resource block is accumulated, divided by the number of resource blocks in the entire bandwidth, and the average power of the entire bandwidth is obtained.
  • the calculating unit is further configured to perform the step of calculating an average power of the corresponding frequency bandwidth according to the resource block information, if the average power reaches a preset channel busy state threshold.
  • the terminal with the uplink data transmission requirement informs the base station of its demand, it acquires the resources allocated by the base station, and calculates the average power of the corresponding frequency band bandwidth according to the allocated resources, only when the average power does not reach the preset channel busy state threshold.
  • the resource allocated by the base station is used for service transmission, and the LBT detection is performed according to the resource information allocated by the base station in the LTE network, thereby avoiding interference to other systems using the unlicensed frequency band, so that the LTE network can be It is compatible with existing systems using unlicensed frequency bands, which facilitates the use of unlicensed frequency bands by terminals in LTE networks, providing users with a higher speed and more stable service transmission experience.
  • FIG. 1 is a schematic flow chart of a first embodiment of a method for transmitting according to the present invention
  • FIG. 2 is a schematic flow chart of a second embodiment of a method for transmitting according to the present invention.
  • FIG. 3 is a schematic flow chart of a third embodiment of a method for transmitting according to the present invention.
  • FIG. 4 is a schematic diagram showing the composition of a first embodiment of the terminal of the present invention.
  • the embodiment of the present invention can be used for an LTE assisted access (LAA) system, which can fully utilize unlicensed frequency bands to provide users with a better broadband experience, higher speed, better stability, and more. Good mobility and good compatibility with existing systems that use unlicensed bands.
  • LAA LTE assisted access
  • FIG. 1 is a schematic flowchart of a first embodiment of a method for transmitting according to the present invention.
  • the method includes the following steps:
  • the resource allocation notification message includes resource block information allocated by the base station to the terminal.
  • step S101 may refer to the process of requesting the uplink transmission by the terminal:
  • the terminal requests the uplink resource from the base station, and the terminal passes the uplink control information (Uplink Control Information, UCI for short) in the Physical Uplink Control CHannel (PUCCH) according to the configuration of the upper layer according to a certain period and the subframe position.
  • uplink control information Uplink Control Information, UCI for short
  • PUCCH Physical Uplink Control CHannel
  • SR Scheduling Request
  • C-RNTI Cell Radio Network Temporary Identifier
  • the base station After receiving the SR information, the base station sends an uplink grant authorization (UL grant), and first allocates a small amount of resources to the terminal for use.
  • the terminal uploads the Buffer Status Reports (BSR) signaling, and tells the base station the amount of data to be transmitted by the base station.
  • BSR Buffer Status Reports
  • the base station After receiving the BSR signaling reported by the terminal, the base station according to the sounding reference signal (Sounding Reference Signal, reported by the terminal)
  • SRS Sounding Reference Signal
  • a comprehensive analysis such as SRS and existing resources of the base station determines whether to allocate resources to the terminal. If the condition does not satisfy the allocation of the resource to the terminal, the terminal re-initiates the random access network (RACH) after failing to upload the SR multiple times.
  • RACH random access network
  • the base station After determining that the terminal meets the resource allocation requirement, the base station allocates resources to the terminal, and the base station also needs to allocate the result, including a physical resource block (Physical Resource Block, PRB) and a modulation and coding scheme (Modulation and Coding Scheme, The abbreviation MCS) tells the terminal to determine the location where the terminal uploads data and the modulation and coding format used.
  • PRB Physical Resource Block
  • MCS Modulation and Coding Scheme
  • the terminal listens to the Physical Downlink Control Channel (PDCCH) to find possible uplink transmission resource allocation, and obtains public information from the common search space. Searching for the scheduling information about itself from the specific terminal search space (UE specific search space) and the preset channel busy for the terminal to perform the Listening Before Talk (LBT) mechanism to detect the allocated resources. Free state threshold.
  • PDCCH Physical Downlink Control Channel
  • the preset channel busy state threshold value may be set by the device manufacturer at the time of leaving the device, or may be provided by the user, or may be provided by the user, and may be customized by the user, which is not limited in the embodiment of the present invention.
  • the preset channel busy state threshold may be set to -62 dBm.
  • the resource block information includes quantity information and location information of the resource blocks allocated by the base station for the terminal, and the location information of the resource blocks can be used to determine the corresponding frequency bandwidth, and the quantity information and each The power of the resource can be calculated to obtain the average power of the corresponding bandwidth.
  • step S103 Determine whether the average power reaches a preset channel busy state threshold. If no, step S104 is performed. If yes, the resources allocated by the base station are not used for service transmission within a preset time.
  • S104 Perform service transmission by using resources allocated by the base station.
  • the terminal when the average power reaches a preset channel busy state threshold, the current channel is in a busy state, and other devices are currently using the channel and the resources, so the terminal continues The continued use of the channel and the resources will cause conflicts and interferences to the services of other devices. Therefore, in this embodiment, the terminal cannot use the resources allocated by the base station for service transmission within a preset time, that is, the channel transmission cannot be occupied. Business data. Certainly, after a preset time or a preset time, the terminal may calculate the average power of the corresponding band broadband again and compare it. When the channel is determined to be in an idle state, the channel may be used for service transmission.
  • the terminal with the uplink data transmission requirement informs the base station of its demand, it acquires the resources allocated by the base station, and calculates the average power of the corresponding frequency band bandwidth according to the allocated resources, only when the average power does not reach the preset channel busy state threshold.
  • the resource allocated by the base station is used for service transmission, and the LBT detection is performed according to the resource information allocated by the base station in the LTE network, thereby avoiding interference to other systems using the unlicensed frequency band, so that the LTE network can be It is compatible with existing systems using unlicensed frequency bands, which facilitates the use of unlicensed frequency bands by terminals in LTE networks, providing users with a higher speed and more stable service transmission experience.
  • FIG. 2 is a schematic flowchart of a second embodiment of a method for transmitting according to the present invention.
  • the method includes the following steps:
  • the resource allocation notification message includes resource block information allocated by the base station to the terminal.
  • the terminal may receive the radio resource control signaling sent by the base station, and obtain the preset channel busy state threshold from the radio resource control signaling group.
  • step S204 Determine whether the average power reaches a preset channel busy state threshold. If no, step S205 is performed, and if yes, the process goes to step S203.
  • the power of each resource block can be monitored in real time, and the average power of the corresponding frequency bandwidth can be calculated, and the calculation can be started after the preset time, which is not limited in the embodiment of the present invention.
  • the power of each resource block may change or may not change. If the average power of the multiple calculations has not changed for the power constant, the channel is always occupied. Terminals cannot use these resource blocks for service transmission. If the transmission needs of the terminal or The transmission of the service is of high importance, and the transmission needs to be completed urgently. After the terminal performs the calculation of the preset number of times, for example, the terminal determines that the average bandwidth of the existing allocated resource is always higher than the preset channel busy state threshold.
  • the terminal can re-initiate the resource allocation request to the base station at this time, and use the method described in the embodiment of the present invention to determine whether the re-allocated resources are freely available, and use the resources re-allocated by the base station to complete the service transmission when available;
  • the resource allocation request may carry the identification information of the service importance, so that the base station directly schedules the currently idle resource to the terminal for direct use, and quickly completes the service transmission.
  • S205 Perform service transmission by using resources allocated by the base station.
  • the channel busy state threshold value preset by the base station is configured in the scheduling information of the specific terminal search space, and the terminal may obtain and use the threshold value to compare with the calculated average power, without adding extra The signaling overhead; and when the average power reaches the preset channel busy state threshold, the resource allocated by the base station is not used for service transmission, and interference with other devices using the unlicensed band can be avoided, and the calculation continues.
  • the average power when the average power meets the requirements, uses the resources allocated by the base station to perform service transmission, and completes its own service requirements.
  • FIG. 3 is a schematic flowchart of a third embodiment of a method for transmitting according to the present invention.
  • the method includes the following steps:
  • the resource allocation notification message includes resource block information allocated by the base station to the terminal.
  • the terminal may also monitor the physical downlink control channel, and obtain the preset channel busy state threshold from the scheduling information searched by the specific terminal search space.
  • step S303 Determine whether the resource blocks allocated by the base station to the terminal are continuous. If yes, go to step S304, otherwise go to step S305.
  • a total of 10 consecutive resource blocks are allocated from 1 to 10, and when the resource blocks allocated by the base station to the terminal are resource blocks of 3, 4, and 5, the calculation of the average power only needs to acquire the resource blocks of 3, 4, and 5 respectively.
  • the power, and the summation sum divided by the number of resource blocks 3 can be. This can further improve the speed and accuracy of the average power calculation, and will not interfere with the result due to the information of other unallocated resource blocks, which can further improve the spectrum utilization.
  • the average power can be calculated to obtain the power of the resource blocks of 1-10, respectively. And summing the sum by dividing the number of resource blocks by 10 to obtain the average power of the entire bandwidth.
  • step S306. Determine whether the average power reaches a preset channel busy state threshold. If no, step S307 is performed, and if yes, the process goes to step S303.
  • the terminal when calculating the average power used for comparing with the preset channel busy state threshold, the terminal may perform different calculations according to the continuity of the allocated resource blocks, and when the allocated resource blocks are consecutive Only the power of consecutive resource blocks is summed and averaged by the number of consecutive resource blocks, which can improve the accuracy and computational efficiency of the calculation results, and is beneficial to improving the utilization efficiency of the spectrum resources.
  • the terminal includes:
  • the obtaining unit 100 is configured to: if the terminal in the long-term evolution network needs to use the unlicensed frequency band to transmit the uplink data, notify the base station to receive the resource allocation notification message returned by the base station, where the resource allocation notification message includes the base station as the Resource block information allocated by the terminal;
  • the calculating unit 200 is configured to calculate an average power of the corresponding frequency bandwidth according to the resource block information
  • the determining unit 300 is configured to determine whether the average power reaches a preset channel busy state threshold
  • the transmitting unit 400 is configured to use the resources allocated by the base station to perform service transmission if the average power does not reach a preset channel busy state threshold.
  • the obtaining unit 100 is further configured to:
  • the calculating unit 200 calculates an average power of the corresponding frequency bandwidth according to the resource block information, specifically, to:
  • the power of each resource block is accumulated, and the average power of the corresponding frequency bandwidth of each resource block is obtained by dividing the number of the respective resource blocks.
  • the calculating unit 200 calculates an average power of the corresponding frequency bandwidth according to the resource block information, specifically, to:
  • the power of each resource block is accumulated, divided by the number of resource blocks in the entire bandwidth, and the average power of the entire bandwidth is obtained.
  • the foregoing obtaining unit 100, the calculating unit 200, the determining unit 300, and the transmitting unit 400 may exist independently or may be integrated.
  • the obtaining unit 100, the calculating unit 200, the determining unit 300, or the transmitting unit 400 may be independent of the processing of the terminal in the form of hardware.
  • the device is separately provided, and the setting form may be in the form of a microprocessor; it may also be embedded in the processor of the terminal in hardware form, or may be stored in the memory of the terminal in software to facilitate the processor of the terminal.
  • the operations corresponding to the above acquisition unit 100, calculation unit 200, determination unit 300, and transmission unit 400 are invoked.
  • the obtaining unit 100 and the transmitting unit 400 can also be used as an interface circuit of the terminal, and can be integrated with the computing unit 200 or the determining unit 300, or can be independently set.
  • the determining unit 200 may be a processor of the terminal, and the functions of the obtaining unit 100, the calculating unit 200, and the transmitting unit 400 may be embedded.
  • the processor it can also be set separately from the processor, or can be stored in the memory in the form of software, and the function is called by the processor.
  • the embodiment of the invention does not impose any limitation.
  • the above processor may be a central processing unit (CPU), a microprocessor, a single chip microcomputer, or the like.
  • each embodiment in the present specification is described in a progressive manner, and each embodiment focuses on a difference from other embodiments, and the same similar parts between the various embodiments. You can refer to each other.
  • the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment.
  • the present invention has the following advantages:
  • the terminal with the uplink data transmission requirement informs the base station of its demand, it acquires the resources allocated by the base station, and calculates the average power of the corresponding frequency band bandwidth according to the allocated resources, only when the average power does not reach the preset channel busy state threshold.
  • the resource allocated by the base station is used for service transmission, and the LBT detection is performed according to the resource information allocated by the base station in the LTE network, thereby avoiding interference to other systems using the unlicensed frequency band, so that the LTE network can be It is compatible with existing systems using unlicensed frequency bands, which facilitates the use of unlicensed frequency bands by terminals in LTE networks, providing users with a higher speed and more stable service transmission experience.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

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Abstract

本发明实施例公开了一种传输的方法，包括：若长期演进网络中的终端需要使用非授权频段传输上行数据，则告知基站，接收所述基站返回的资源分配通知消息，所述资源分配通知消息中包含所述基站为所述终端分配的资源块信息；根据所述资源块信息计算对应频带宽度的平均功率；判断所述平均功率是否达到预设的信道忙闲状态阈值；若所述平均功率未达到预设的信道忙闲状态阈值，则使用所述基站分配的资源进行业务传输。本发明实施例还公开了一种终端。采用本发明，可实现LTE网络和现有使用非授权频段的网络的兼容。

Description

一种传输的方法及终端 技术领域
本发明涉及通信技术领域，尤其涉及一种传输的方法及终端。
背景技术
随着通信业务量的急剧增加，第三代合作伙伴计划(3rd Generation Partnership Project，简称3GPP)授权频谱显得越来越不足以提供更高的网络容量。为了进一步提高频谱资源的利用，3GPP正讨论如何在授权频谱的帮助下使用未授权频谱，如2.4GHz和5GHz频段。这些未授权频谱目前主要是(无线保真Wireless-Fidelity，简称Wi-Fi)、蓝牙、雷达和医疗等系统在使用。相比Wi-Fi等网络，工作在未授权频段的长期演进(Long Term Evolution，简称LTE)网络有能力提供更高的频谱效率和更大的覆盖效果，同时基于同一个核心网让数据流量在授权频段和未授权频段之间无缝切换。对用户来说，这意味着更好的宽带体验、更高的速率、更好的稳定性和更好的移动性。
现有LTE网络中由于通信的子载波之间有很好的正交性，保证了LTE网络较强的抗干扰水平，所以基站与用户的上下行传输不用考虑周围是否有基站或用户在进行数据传输。但是在非授权频谱上使用的接入技术，如Wi-Fi技术等，其抗干扰能力较弱。如果LTE网络在非授权频段上使用时不考虑周围是否有别的设备在使用非授权频段，那么将对Wi-Fi设备带来极大的干扰。Wi-Fi设备在LTE网络有业务传输时就没法进行数据传输，只能等到LTE业务传输完成，在检测到信道处于空闲状态时，才能进行传输。这就导致了LTE网络在使用非授权频段时，无法和现有使用非授权频段的网络共存。
发明内容
本发明实施例所要解决的技术问题在于，提供一种传输的方法及终端。以解决LTE网络无法和现有使用非授权频段的网络共存的问题。
为了解决上述技术问题，本发明实施例第一方面提供了一种传输的方法， 包括：
若长期演进网络中的终端需要使用非授权频段传输上行数据，则告知基站，接收所述基站返回的资源分配通知消息，所述资源分配通知消息中包含所述基站为所述终端分配的资源块信息；
根据所述资源块信息计算对应频带宽度的平均功率；
判断所述平均功率是否达到预设的信道忙闲状态阈值；
若所述平均功率未达到预设的信道忙闲状态阈值，则使用所述基站分配的资源进行业务传输。
其中，在根据所述资源块信息计算对应频带宽度的平均功率之前，还包括：
监听物理下行控制信道，从特定终端搜索空间搜索到的调度信息中获取所述预设的信道忙闲状态阈值；或者
接收所述基站发送的无线资源控制信令，从所述无线资源控制信令众获取所述预设的信道忙闲状态阈值。
其中，若所述基站分配给所述终端的资源块连续，则根据所述资源块信息计算对应频带宽度的平均功率，包括：
获取所述基站分配给所述终端的各个资源块的功率；
对所述各个资源块的功率进行累加，除以所述各个资源块的数量得到所述各个资源块对应频带宽度的平均功率。
其中，若所述基站分配给所述终端的资源块非连续，则根据所述资源块信息计算对应频带宽度的平均功率，包括：
获取所述基站分配给所述终端的各个资源块的功率；
对所述各个资源块的功率进行累加，除以整个频带宽度中的资源块数量，得到整个频带宽度的平均功率。
其中，若所述平均功率达到预设的信道忙闲状态阈值，则跳转至根据所述资源块信息计算对应频带宽度的平均功率的步骤。
本发明实施例第二方面提供了一种终端，包括：
获取单元，用于若长期演进网络中的终端需要使用非授权频段传输上行数据，则告知基站，接收所述基站返回的资源分配通知消息，所述资源分配通知消息中包含所述基站为所述终端分配的资源块信息；
计算单元，用于根据所述资源块信息计算对应频带宽度的平均功率；
判断单元，用于判断所述平均功率是否达到预设的信道忙闲状态阈值；
传输单元，用于若所述平均功率未达到预设的信道忙闲状态阈值，则使用所述基站分配的资源进行业务传输。
其中，所述获取单元还用于：
监听物理下行控制信道，从特定终端搜索空间搜索到的调度信息中获取所述预设的信道忙闲状态阈值；或者
接收所述基站发送的无线资源控制信令，从所述无线资源控制信令众获取所述预设的信道忙闲状态阈值。
其中，若所述基站分配给所述终端的资源块连续，则所述计算单元根据所述资源块信息计算对应频带宽度的平均功率，具体用于：
获取所述基站分配给所述终端的各个资源块的功率；
对所述各个资源块的功率进行累加，除以所述各个资源块的数量得到所述各个资源块对应频带宽度的平均功率。
其中，若所述基站分配给所述终端的资源块连续，则所述计算单元根据所述资源块信息计算对应频带宽度的平均功率，具体用于：
获取所述基站分配给所述终端的各个资源块的功率；
对所述各个资源块的功率进行累加，除以整个频带宽度中的资源块数量，得到整个频带宽度的平均功率。
其中，若所述平均功率达到预设的信道忙闲状态阈值，则所述计算单元还用于再次执行根据所述资源块信息计算对应频带宽度的平均功率的步骤。
实施本发明实施例，具有如下有益效果：
具备上行数据传输需求的终端在告知基站其需求后，获取基站为其分配的资源，并根据分配的资源计算对应频带带宽的平均功率，只在平均功率未达到预设的信道忙闲状态阈值时，才使用所述基站分配的资源进行业务传输，实现了在LTE网络中根据基站分配的资源信息来进行LBT检测的目的，从而避免了对其他使用未授权频段的系统的干扰，使得LTE网络可与现有使用未授权频段的系统的良好兼容，利于LTE网络中的终端使用未授权频段，为用户提供更高速更稳定的业务传输体验。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明传输的方法的第一实施例的流程示意图；
图2是本发明传输的方法的第二实施例的流程示意图；
图3是本发明传输的方法的第三实施例的流程示意图；
图4是本发明终端的第一实施例的组成示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明实施例可用于上行LTE辅助的接入技术(LTE assisted access简称LAA)系统，可充分利用未授权频段，为用户提供更好的宽带体验、更高的速率、更好的稳定性和更好的移动性，并且可与现有使用非授权频段的系统实现良好的兼容。
请参照图1，为本发明传输的方法的第一实施例的流程示意图，在本实施例中，所述方法包括以下步骤：
S101，若长期演进网络中的终端需要使用非授权频段传输上行数据，则告知基站，接收所述基站返回的资源分配通知消息。
其中，所述资源分配通知消息中包含所述基站为所述终端分配的资源块信息。
可选地，步骤S101中终端与基站的详细交互可参照终端请求上行传输的流程：
1.终端向基站请求上行资源，终端根据上层的配置按照一定的周期和子帧位置，通过物理上行链路控制信道(Physical Uplink Control CHannel，简称PUCCH)中的上行控制信息(Uplink Control Information，简称UCI)传输调度请求(Scheduling Request，简称SR)，同时在SR中，携带着终端的小区无线网络临 时标识(Cell Radio Network Temporary Identifier，简称C-RNTI)。基站收到SR信息之后，下发上行调度授权(UL grant)，先配置一少部分资源给终端使用。
2.终端上传缓存状态报告(Buffer Status Reports，简称BSR)信令，告诉基站自己要传输的数据量，基站收到终端上报的BSR信令之后根据该终端上报的探测参考信号(Sounding Reference Signal，简称SRS)及基站现有资源等综合分析决定是否给终端分配资源。如果条件不满足分配资源给终端，终端在多次上传SR失败之后重新发起随机接入信道(Random Access Network，简称RACH)。
3.基站在确定终端满足资源分配的需求之后，分配资源给终端，同时基站还需要把分配的结果，包括物理资源块(Physical Resource Block，简称PRB)和调制和编码方案(Modulation and Coding Scheme，简称MCS)告诉终端，确定终端上传数据的位置以及采用的调制编码格式。
4.终端收到基站下发的资源分配通知后，监听物理下行控制信道(Physical Downlink Control Channel，简称PDCCH)以查找可能的上行传输资源分配，从公用搜索空间(common search space)中获取公共信息，从特定终端搜索空间(UE specific search space)中搜索关于自己的调度信息以及可能存在的用于终端执行先听后说(Listen Before Talk，简称LBT)机制检测所分配资源的预设的信道忙闲状态阈值。
需要说明的是，此处的预设的信道忙闲状态阈值可以由设备生产厂商在设备出厂时设置或者提供若干设置选项供用户选择，也可以由用户自定义，本发明实施例不作任何限定。
在一种可行的实施方式中，可以将预设的信道忙闲状态阈值设置为-62dBm。
S102，根据所述资源块信息计算对应频带宽度的平均功率。
其中，所述资源块信息中包含了基站为所述终端分配的资源块的数量信息和位置信息，通过这些资源块的位置信息便可以确定其对应的频带宽度，再结合其数量信息以及每个资源的功率便可以计算得到对应频带宽度的平均功率。
S103，判断所述平均功率是否达到预设的信道忙闲状态阈值。若否，则执行步骤S104。若是，则在预设时间内不使用所述基站分配的资源进行业务传输。
S104，使用所述基站分配的资源进行业务传输。
具体地，当所述平均功率达到预设的信道忙闲状态阈值时，说明当前信道处于忙的状态，当前有其他设备在使用该信道及这些资源，因此所述终端若继 续使用该信道和这些资源将对其他设备的业务造成冲突和干扰，所以在本实施例中，所述终端在预设时间内将无法使用所述基站分配的资源进行业务传输即无法占用信道传输业务数据。当然，在预设时间内或者预设时间后，所述终端可再次计算对应频带宽带的平均功率并进行比较，当判断信道处于空闲状态时，便可以使用该信道进行业务传输。
具备上行数据传输需求的终端在告知基站其需求后，获取基站为其分配的资源，并根据分配的资源计算对应频带带宽的平均功率，只在平均功率未达到预设的信道忙闲状态阈值时，才使用所述基站分配的资源进行业务传输，实现了在LTE网络中根据基站分配的资源信息来进行LBT检测的目的，从而避免了对其他使用未授权频段的系统的干扰，使得LTE网络可与现有使用未授权频段的系统的良好兼容，利于LTE网络中的终端使用未授权频段，为用户提供更高速更稳定的业务传输体验。
请参照图2，为本发明传输的方法的第二实施例的流程示意图，在本实施例中，所述方法包括以下步骤：
S201，若长期演进网络中的终端需要使用非授权频段传输上行数据，则告知基站，接收所述基站返回的资源分配通知消息。
所述资源分配通知消息中包含所述基站为所述终端分配的资源块信息。
S202，监听物理下行控制信道，从特定终端搜索空间搜索到的调度信息中获取所述预设的信道忙闲状态阈值。
可选地，也可以由终端接收所述基站发送的无线资源控制信令，从所述无线资源控制信令众获取所述预设的信道忙闲状态阈值。
S203，根据所述资源块信息计算对应频带宽度的平均功率。
S204，判断所述平均功率是否达到预设的信道忙闲状态阈值。若否，则执行步骤S205，若是，则跳转至步骤S203。
需要说明的是，在跳转后，可实时监控各个资源块的功率并计算对应频带宽度的平均功率，也可以在预设时间后开始进行计算，本发明实施例不作任何限定。
需要说明的是，在实时监控各个资源块的功率时，每个资源块的功率可能变化也可能不变，对于功率不变导致多次计算的平均功率一直未变时，说明信道一直被占用，终端无法使用这些资源块进行业务传输。若终端的传输需求或 传输的业务重要性较高，需要迫切完成传输，则终端在进行预设次数如3次的计算判断之后，发现现有分配资源对应的频带宽度平均功率一直高于预设的信道忙闲状态阈值，那么终端此时可重新向基站发起资源分配请求，并使用本发明实施例中所述的方法判断这些重分配的资源是否空闲可用，在可用时利用基站重新分配的资源完成业务传输；甚至还可以在资源分配请求中携带业务重要性的标识信息，以便基站直接调度当前空闲的资源给终端直接使用，迅速完成业务传输。
S205，使用所述基站分配的资源进行业务传输。
在本发明实施例中，基站预设的信道忙闲状态阈值配置在特定终端搜索空间的调度信息中，终端可从该信息中获取并使用该阈值与计算得到的平均功率进行比较，无需增加额外的信令开销；且在所述平均功率达到预设的信道忙闲状态阈值时，不使用所述基站分配的资源进行业务传输，可避免对其他使用非授权频段的设备的干扰，并继续计算平均功率，在平均功率满足要求时使用所述基站分配的资源进行业务传输，完成自身的业务需求。
请参照图3，为本发明传输的方法的第三实施例的流程示意图，在本实施例中，所述方法包括以下步骤：
S301，若长期演进网络中的终端需要使用非授权频段传输上行数据，则告知基站，接收所述基站返回的资源分配通知消息。
所述资源分配通知消息中包含所述基站为所述终端分配的资源块信息。
S302，接收所述基站发送的无线资源控制信令，从所述无线资源控制信令众获取所述预设的信道忙闲状态阈值。
可选地，也可以由所述终端监听物理下行控制信道，从特定终端搜索空间搜索到的调度信息中获取所述预设的信道忙闲状态阈值。
S303，判断所述基站分配给所述终端的资源块是否连续。若是，则执行步骤S304，否则执行步骤S305。
S304，获取所述基站分配给所述终端的各个资源块的功率，对所述各个资源块的功率进行累加，除以所述各个资源块的数量得到所述各个资源块对应频带宽度的平均功率。
例如一共1到10共10个依次连续的资源块，当基站给终端分配的资源块为3、4、5的资源块时，则计算平均功率只需要分别获取3、4、5的资源块的 功率，并累加求和除以资源块的数量3即可。这样可以进一步提高平均功率计算的速度和准确性，不会因其他未分配的资源块的信息对结果带来干扰，可进一步来提高频谱利用率。
S305，获取所述基站分配给所述终端的各个资源块的功率，对所述各个资源块的功率进行累加，除以整个频带宽度中的资源块数量，得到整个频带宽度的平均功率。
例如，例如一共1到10共10个依次连续的资源块，当基站给终端分配的资源块为3、5、7的资源块时，则计算平均功率可分别获取1-10的资源块的功率，并累加求和除以资源块的数量10得到整个频带宽度的平均功率。
当然，为了减少计算的资源块数量，也可以仅获取3-7的资源块的功率，累加求和后除以5得到3-7的资源块对应频带宽度的平均功率，与预设的信道忙闲状态阈值进行比较。
S306，判断所述平均功率是否达到预设的信道忙闲状态阈值。若否，则执行步骤S307，若是，则跳转至步骤S303。
S307，使用所述基站分配的资源进行业务传输。
在本实施例中，终端在计算用于与预设的信道忙闲状态阈值进行比较的平均功率时，可以根据分配的资源块的连续性来进行不同的计算，且在分配的资源块连续时，仅对连续的资源块的功率进行求和并以连续的资源块的数量求平均值，可提升计算结果的准确性和计算效率，利于提升频谱资源的利用效率。
请参照图4，为本发明终端的第一实施例的组成示意图；在本实施例中，所述终端包括：
获取单元100，用于若长期演进网络中的终端需要使用非授权频段传输上行数据，则告知基站，接收所述基站返回的资源分配通知消息，所述资源分配通知消息中包含所述基站为所述终端分配的资源块信息；
计算单元200，用于根据所述资源块信息计算对应频带宽度的平均功率；
判断单元300，用于判断所述平均功率是否达到预设的信道忙闲状态阈值；
传输单元400，用于若所述平均功率未达到预设的信道忙闲状态阈值，则使用所述基站分配的资源进行业务传输。
可选地，所述获取单元100还用于：
监听物理下行控制信道，从特定终端搜索空间搜索到的调度信息中获取所 述预设的信道忙闲状态阈值；或者
接收所述基站发送的无线资源控制信令，从所述无线资源控制信令众获取所述预设的信道忙闲状态阈值。
可选地，若所述基站分配给所述终端的资源块连续，则所述计算单元200根据所述资源块信息计算对应频带宽度的平均功率，具体用于：
获取所述基站分配给所述终端的各个资源块的功率；
对所述各个资源块的功率进行累加，除以所述各个资源块的数量得到所述各个资源块对应频带宽度的平均功率。
可选地，若所述基站分配给所述终端的资源块连续，则所述计算单元200根据所述资源块信息计算对应频带宽度的平均功率，具体用于：
获取所述基站分配给所述终端的各个资源块的功率；
对所述各个资源块的功率进行累加，除以整个频带宽度中的资源块数量，得到整个频带宽度的平均功率。
可选地，若所述平均功率达到预设的信道忙闲状态阈值，则所述计算单元200还用于再次执行根据所述资源块信息计算对应频带宽度的平均功率的步骤。
以上获取单元100、计算单元200、判断单元300和传输单元400可以独立存在，也可以集成设置，获取单元100、计算单元200、判断单元300或传输单元400可以以硬件的形式独立于终端的处理器单独设置，且设置形式可以是微处理器的形式；也可以以硬件形式内嵌于该终端的处理器中，还可以以软件形式存储于该终端的存储器中，以便于该终端的处理器调用执行以上获取单元100、计算单元200、判断单元300和传输单元400对应的操作。
当然，获取单元100和传输单元400也可以作为该终端的接口电路，可以与计算单元200或判断单元300集成，也可以独立设置。
例如，在本发明终端的第一实施例(图4所示的实施例)中，判断单元200可以为该终端的处理器，而获取单元100、计算单元200和传输单元400的功能可以内嵌于该处理器中，也可以独立于处理器单独设置，也可以以软件的形式存储于存储器中，由处理器调用实现其功能。本发明实施例不做任何限制。以上处理器可以为中央处理单元(CPU)、微处理器、单片机等。
需要说明的是，本说明书中的各个实施例均采用递进的方式描述，每个实施例重点说明的都是与其它实施例的不同之处，各个实施例之间相同相似的部 分互相参见即可。对于装置实施例而言，由于其与方法实施例基本相似，所以描述的比较简单，相关之处参见方法实施例的部分说明即可。
通过上述实施例的描述，本发明具有以下优点：
具备上行数据传输需求的终端在告知基站其需求后，获取基站为其分配的资源，并根据分配的资源计算对应频带带宽的平均功率，只在平均功率未达到预设的信道忙闲状态阈值时，才使用所述基站分配的资源进行业务传输，实现了在LTE网络中根据基站分配的资源信息来进行LBT检测的目的，从而避免了对其他使用未授权频段的系统的干扰，使得LTE网络可与现有使用未授权频段的系统的良好兼容，利于LTE网络中的终端使用未授权频段，为用户提供更高速更稳定的业务传输体验。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，所述的程序可存储于一计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施例的流程。其中，所述的存储介质可为磁碟、光盘、只读存储记忆体(Read-Only Memory，简称ROM)或随机存储记忆体(Random Access Memory，简称RAM)等。
以上所揭露的仅为本发明较佳实施例而已，当然不能以此来限定本发明之权利范围，因此依本发明权利要求所作的等同变化，仍属本发明所涵盖的范围。

Claims (10)

  1. 一种传输的方法，其特征在于，包括：
    若长期演进网络中的终端需要使用非授权频段传输上行数据，则告知基站，接收所述基站返回的资源分配通知消息，所述资源分配通知消息中包含所述基站为所述终端分配的资源块信息；
    根据所述资源块信息计算对应频带宽度的平均功率；
    判断所述平均功率是否达到预设的信道忙闲状态阈值；
    若所述平均功率未达到预设的信道忙闲状态阈值，则使用所述基站分配的资源进行业务传输。
  2. 如权利要求所述1的方法，其特征在于，在根据所述资源块信息计算对应频带宽度的平均功率之前，还包括：
    监听物理下行控制信道，从特定终端搜索空间搜索到的调度信息中获取所述预设的信道忙闲状态阈值；或者
    接收所述基站发送的无线资源控制信令，从所述无线资源控制信令众获取所述预设的信道忙闲状态阈值。
  3. 如权利要求2所述的方法，其特征在于，若所述基站分配给所述终端的资源块连续，则根据所述资源块信息计算对应频带宽度的平均功率，包括：
    获取所述基站分配给所述终端的各个资源块的功率；
    对所述各个资源块的功率进行累加，除以所述各个资源块的数量得到所述各个资源块对应频带宽度的平均功率。
  4. 如权利要求2所述的方法，其特征在于，若所述基站分配给所述终端的资源块非连续，则根据所述资源块信息计算对应频带宽度的平均功率，包括：
    获取所述基站分配给所述终端的各个资源块的功率；
    对所述各个资源块的功率进行累加，除以整个频带宽度中的资源块数量，得到整个频带宽度的平均功率。
  5. 如权利要求1-4任一项所述的方法，其特征在于，若所述平均功率达到预设的信道忙闲状态阈值，则跳转至根据所述资源块信息计算对应频带宽度的平均功率的步骤。
  6. 一种终端，其特征在于，包括：
    获取单元，用于若长期演进网络中的终端需要使用非授权频段传输上行数据，则告知基站，接收所述基站返回的资源分配通知消息，所述资源分配通知消息中包含所述基站为所述终端分配的资源块信息；
    计算单元，用于根据所述资源块信息计算对应频带宽度的平均功率；
    判断单元，用于判断所述平均功率是否达到预设的信道忙闲状态阈值；
    传输单元，用于若所述平均功率未达到预设的信道忙闲状态阈值，则使用所述基站分配的资源进行业务传输。
  7. 如权利要求1所述的终端，其特征在于，所述获取单元还用于：
    监听物理下行控制信道，从特定终端搜索空间搜索到的调度信息中获取所述预设的信道忙闲状态阈值；或者
    接收所述基站发送的无线资源控制信令，从所述无线资源控制信令众获取所述预设的信道忙闲状态阈值。
  8. 如权利要求7所述的终端，其特征在于，若所述基站分配给所述终端的资源块连续，则所述计算单元根据所述资源块信息计算对应频带宽度的平均功率，具体用于：
    获取所述基站分配给所述终端的各个资源块的功率；
    对所述各个资源块的功率进行累加，除以所述各个资源块的数量得到所述各个资源块对应频带宽度的平均功率。
  9. 如权利要求7所述的终端，其特征在于，若所述基站分配给所述终端的资源块连续，则所述计算单元根据所述资源块信息计算对应频带宽度的平均功率，具体用于：
    获取所述基站分配给所述终端的各个资源块的功率；
    对所述各个资源块的功率进行累加，除以整个频带宽度中的资源块数量，得到整个频带宽度的平均功率。
  10. 如权利要求6-9任一项所述的终端，其特征在于，若所述平均功率达到预设的信道忙闲状态阈值，则所述计算单元还用于再次执行根据所述资源块信息计算对应频带宽度的平均功率的步骤。
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