WO2012151862A1 - 基于载波聚合技术实现混合通信的方法及通信终端 - Google Patents
基于载波聚合技术实现混合通信的方法及通信终端 Download PDFInfo
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- WO2012151862A1 WO2012151862A1 PCT/CN2011/081204 CN2011081204W WO2012151862A1 WO 2012151862 A1 WO2012151862 A1 WO 2012151862A1 CN 2011081204 W CN2011081204 W CN 2011081204W WO 2012151862 A1 WO2012151862 A1 WO 2012151862A1
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- carrier
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- 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
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
Definitions
- the present invention relates to the field of communications technologies, and in particular, to a method and a communication terminal for implementing hybrid communication based on carrier aggregation technology. Background technique
- the main object of the present invention is to provide a method and a communication terminal for implementing hybrid communication based on carrier aggregation technology, and simultaneously realize voice communication and data communication by using CA technology.
- a method for implementing hybrid communication based on carrier aggregation technology comprising the steps of: Carrying carrier aggregation on the carrier of the voice signal and the carrier of the data signal;
- the voice carrier signal carrying the voice after aggregation and the data carrier signal carrying the data are separately transmitted.
- the method further includes:
- the detected value of the signal quality is lower than the preset threshold, it is determined whether the data carrier signal occupies a minimum bandwidth, and if so, different frequency bands are selected to perform carrier between the carrier of the voice signal and the carrier of the data signal.
- the bandwidth occupied by the aggregated data carrier signal is reduced.
- selecting a different frequency band performs carrier aggregation between the carrier of the received voice signal and the carrier of the data signal, and specifically includes:
- the carrier of the voice signal and the carrier of the data signal are respectively aggregated at an intermediate frequency of the respective frequency bands.
- selecting a different frequency band performs carrier aggregation between the carrier of the received voice signal and the carrier of the data signal, and further includes:
- the carrier of the carrier and the data signal of the voice signal is re-transmitted Perform carrier aggregation between bands;
- the carrier aggregation between the carrier of the voice signal and the carrier of the data signal is performed, specifically including:
- a communication terminal includes:
- a carrier aggregation unit configured to perform carrier aggregation on a carrier of a voice signal and a carrier of the data signal
- the voice radio frequency unit is configured to transmit the voice carrier signal that carries the voice after the aggregation;
- the data radio unit is configured to transmit the data carrier signal that carries the data after the aggregation.
- the communication terminal further includes: an interference detecting unit, configured to detect the quality of the received voice carrier signal and the data carrier signal in real time;
- the carrier aggregation unit is specifically configured to determine whether the data carrier signal occupies a minimum bandwidth when the detected value of the signal quality is lower than a preset threshold, and if yes, select a different frequency band for the carrier signal and the data signal of the voice signal.
- the carrier performs carrier aggregation between the bands; if not, the bandwidth occupied by the data carrier signal is reduced.
- the carrier aggregating unit is further configured to: separately aggregate the voice carrier signal and the data carrier signal in an intermediate frequency of the respective frequency bands.
- the interference detecting unit is further configured to detect the quality of the received voice carrier signal and the data carrier signal in real time after performing carrier aggregation between the bands;
- the carrier aggregating unit is further configured to: when the detected value of the signal quality is lower than a preset threshold, determine whether the frequency of the voice carrier signal is the lowest and the frequency of the data carrier signal is the highest, and if yes, re-attack the voice signal
- the carrier of the carrier and the data signal performs carrier aggregation between the bands; if not, the frequency of the voice carrier signal is respectively reduced and the frequency of the data carrier signal is increased.
- the interference detecting unit is further configured to detect the quality of the received voice carrier signal and the data carrier signal in real time after re-banding the carrier aggregation between the bands;
- the carrier aggregation unit is further configured to determine when the detected value of the signal quality is lower than a preset threshold Whether the frequency of the broken data carrier signal is the lowest and whether the frequency of the voice carrier signal is the highest. If not, the frequency of the voice carrier signal is increased or the frequency of the data carrier signal is decreased, and if so, the voice communication or data communication is interrupted.
- the technical solution of the present invention has the following beneficial effects:
- the present invention can implement voice communication and data communication simultaneously by carrier aggregation of a carrier of a voice signal and a carrier of a data signal; and does not increase the hardware structure and algorithm complexity of the communication terminal.
- FIG. 1 is a schematic flowchart of a method for implementing hybrid communication based on carrier aggregation technology according to an embodiment of the present invention
- FIG. 2 is another schematic flowchart of a method for implementing hybrid communication based on carrier aggregation technology according to an embodiment of the present disclosure
- FIG. 3 is a schematic structural diagram of an embodiment of a communication terminal according to an embodiment of the present invention
- FIG. 4 is a schematic structural diagram of another embodiment of a communication terminal according to an embodiment of the present invention
- a schematic flowchart of an application example
- FIG. 6 is a schematic flowchart of another application example of a communication terminal according to an embodiment of the present invention.
- the embodiment of the invention provides a method for implementing hybrid communication based on carrier aggregation technology. As shown in FIG. 1 , the method includes the following steps:
- the communication terminal performs carrier aggregation on a carrier of the voice signal and a carrier of the data signal.
- carrier aggregation or carrier aggregation is selected according to an operation mode of the communication terminal. For example, if the voice signal and the data signal of the communication terminal are not working at the same time, the communication terminals respectively operate in independent working modes. Only when the voice communication and the data communication in the communication terminal coexist, the carrier of the carrier of the voice signal and the carrier of the data signal are started to be aggregated, and the voice carrier signal carrying the voice and the data carrier signal carrying the data are obtained after the aggregation. Generally, the data carrier signal occupies a bandwidth greater than the bandwidth of the voice carrier signal.
- the voice carrier signal and the data carrier signal are first subjected to intra-band carrier aggregation using the principle of the nearest one.
- the voice carrier signal carrying the voice and the data carrier signal carrying the data are respectively transmitted.
- the voice carrier signal and the data carrier signal are respectively sent to the voice radio unit and the data radio unit of the communication terminal, and the voice carrier signal and the data carrier signal are respectively sent out through the voice radio unit and the data radio unit.
- the method further includes: S130: detecting a signal quality of the received voice carrier signal and the data carrier signal in real time; S140, detecting a signal quality lower than a preset value At the threshold value, it is judged whether the data carrier signal occupies the minimum bandwidth, and if yes, the different frequency bands are selected to perform carrier aggregation between the carrier of the voice signal and the carrier of the data signal; if not, the aggregated data carrier is reduced. The bandwidth occupied by the signal.
- the communication terminal determines whether it is due to Carrier aggregation for simultaneous voice communication Mutual interference with data communication.
- This mutual interference is generally caused by out-of-band spurs (in-band aggregation) or harmonics (inter-band aggregation) due to unavoidable nonlinear characteristics in the circuit, generally transmitting (uplink) interference data of a voice carrier signal.
- the reception of the carrier signal (downlink), or the transmission (uplink) of the data carrier signal interferes with the reception (downlink) of the voice carrier signal, and these interferences cannot be eliminated by the radio frequency device alone.
- the received signal is detected, and when the mutual interference is detected or the interference value exceeds a certain threshold, the bandwidth of the voice carrier signal and the data carrier signal is reselected, and the frequency band of the aggregated carrier can be solved.
- different frequency bands are selected to perform carrier aggregation between the received voice carrier signal and the data carrier signal, and more specifically, the carrier of the voice signal and the carrier of the data signal are respectively aggregated in the intermediate frequency of the respective frequency bands.
- the carrier aggregation and detection process between the frequency bands is entered, according to the carrier signal and the data signal of the voice signal.
- Carrier aggregation is performed on the principle that carriers are located in the middle of the respective frequency bands. Simultaneously detecting the signal quality of the received voice carrier signal and the data carrier signal in real time.
- the interval between the voice carrier signal and the data carrier signal is increased: The transmission frequency of the data carrier signal and the transmission frequency of the voice carrier signal are increased; the second is to simultaneously increase the transmission frequency of the data carrier signal and reduce the transmission frequency of the voice carrier signal.
- the S140 selects different frequency bands to perform carrier aggregation between the received voice carrier signal and the data carrier signal, and may specifically include: detecting the received voice carrier signal and the data carrier signal in real time. Quality; when the detected value of the signal quality is lower than the preset threshold, it is judged whether the frequency of the voice carrier signal is the lowest and the frequency of the data carrier signal is the highest, and if so, the carrier of the carrier and the data signal of the voice signal is re-transmitted Perform carrier aggregation between bands; if not, reduce the frequency of the voice carrier signal and increase the data load The frequency of the wave signal.
- the re-equalizing the carrier between the carrier of the voice signal and the carrier of the data signal includes:
- Real-time detecting the quality of the received voice carrier signal and the data carrier signal when the detected value of the signal quality is lower than the preset threshold, determining whether the frequency of the data carrier signal is the lowest and whether the frequency of the aggregated voice carrier signal is the highest, if No, the frequency of the voice carrier signal is increased or the frequency of the data carrier signal is reduced, and if so, the voice communication or data communication is interrupted.
- the process is based on the characteristics of the radio frequency transmission signal when the communication terminal is working. The first is to increase the frequency interval of transmitting and receiving the voice carrier signal and the data carrier signal, and the second is to reduce the out-of-band spurious interference signal of the transmitted signal by using the method of reducing the bandwidth.
- the interference of the small-band transmission signal to the received signal according to the characteristics of the carrier aggregation, the method of reducing the bandwidth, while increasing the transmission and reception frequency interval, also effectively reducing the out-of-band spurs, thereby reducing or eliminating the voice carrier signal. And the data carrier signals interfere with each other.
- the embodiment of the present invention further provides a communication terminal.
- the communication terminal includes: a carrier aggregation unit 310, configured to perform carrier aggregation on a carrier of a voice signal and a carrier of a data signal;
- the voice radio frequency unit 320 is configured to transmit the voice carrier signal that carries the voice after the aggregation
- the data radio frequency unit 330 is configured to transmit the data carrier signal that carries the data after the aggregation.
- the carrier aggregation unit 310 selectively performs carrier aggregation according to the working scenario and the requirements of the self service. For example, if data communication is performed while voice communication is being performed, a certain bandwidth is used, and a certain amount of radio frequency power is transmitted to communicate with the base station. Generally, the bandwidth occupied by the data communication is larger than the bandwidth of the voice communication.
- the first 4 bar voice carrier signal and the data carrier signal adopt the nearest principle to perform intra-band carrier aggregation, and the aggregated signals are respectively sent to the voice radio frequency unit 320 and the data radio unit 330 for transmission.
- the communication terminal further includes:
- the interference detecting unit 340 is configured to detect the quality of the received voice carrier signal and the data carrier signal in real time;
- the carrier aggregation unit 310 is specifically configured to determine whether the data carrier signal occupies a minimum bandwidth when the detected value of the signal quality is lower than a preset threshold, and if yes, select a carrier and data signal of the different frequency band to the voice signal.
- the carrier carries out carrier aggregation between the bands; if not, the bandwidth occupied by the data carrier signal is reduced.
- FIG. 5 is a schematic flow chart of carrier aggregation implementation and interference detection in a frequency band in an embodiment of a communication terminal according to the present invention.
- the method for detecting and implementing carrier aggregation includes the following steps:
- the communication terminal selectively performs carrier aggregation by the carrier aggregation unit 310 according to the working scenario and the requirements of its own service. For example, if data communication is performed while voice communication is being performed, a certain bandwidth is used, and a certain radio frequency power is transmitted to communicate with the base station. Generally, the bandwidth occupied by the data communication is larger than the bandwidth of the voice communication.
- the voice carrier signal and the data carrier signal are first used in the near-frequency carrier aggregation, and the aggregated signals are respectively sent to the voice radio unit 320 and the data radio unit 330 for transmission. Then it proceeds to S202.
- the interference detecting unit 340 detects the received signal quality, and sends the detected value of the signal quality to the carrier aggregation unit 310, and proceeds to S203.
- S203 The carrier aggregation unit 310 determines the signal quality. If the signal quality is lower than the set threshold, the process proceeds to S204, otherwise, the process proceeds to S201.
- the carrier aggregation unit 310 determines whether the occupied bandwidth of the data carrier signal is minimum. If the occupied bandwidth of the data carrier signal is the smallest, the process proceeds to S201, otherwise, the process proceeds to S205 or carrier aggregation between the frequency bands is performed.
- the bandwidth occupied by the data carrier signal is not the minimum, the bandwidth of the data carrier signal after the corresponding carrier aggregation is reduced to the next level bandwidth,
- the carrier of the voice signal and the carrier of the data signal are carrier-synthesized, the corresponding out-of-band spurious interference of the radio frequency is reduced.
- S205 The bandwidth of the P-level lower data carrier signal is returned to S201.
- the interference of the same frequency band transmission signal to the received signal is reduced, one is to increase the frequency interval of signal transmission and reception, and the other is to reduce the bandwidth of the transmission signal to reduce out-of-band spurious interference. Signals to reduce or eliminate mutual interference.
- the carrier aggregation unit 310 is further configured to: aggregate the voice carrier signal and the data carrier signal into intermediate frequencies of respective frequency bands.
- the interference detecting unit 340 is further configured to detect the quality of the received voice carrier signal and the data carrier signal in real time after performing carrier aggregation between the frequency bands; the carrier aggregation unit 310 is further configured to When the detected value of the signal quality is lower than the preset threshold, it is determined whether the frequency of the voice carrier signal is the lowest and the frequency of the data carrier signal is the highest, and if so, the carrier of the voice signal and the carrier of the data signal are re-banded. Carrier aggregation; if not, respectively reduce the frequency of the voice carrier signal and increase the frequency of the data carrier signal.
- the interference detecting unit 340 is further configured to detect the quality of the received voice carrier signal and the data carrier signal in real time after re-band carrier aggregation.
- the carrier aggregation unit 310 is further configured to: when the detected value of the signal quality is lower than a preset threshold, determine whether the frequency of the data carrier signal is the lowest and the frequency of the voice carrier signal is the highest, and if not, increase the voice carrier signal. The frequency or the frequency of the data carrier signal is reduced, and if so, the voice communication or data communication is interrupted.
- the method for carrier aggregation and interference detection between frequency bands includes the following steps: S301: If the communication terminal is Carrier aggregation in the frequency band cannot satisfy voice communication and number According to the requirements of the simultaneous operation of the communication, the carrier aggregation unit 310 selects different frequency bands for carrier aggregation between the frequency bands. First, the carrier of the voice signal and the carrier of the data signal are respectively aggregated in the intermediate frequency of the respective frequency bands, and the aggregated voice carrier signal is obtained. The data carrier signal is sent to the voice radio unit 320 and the data radio unit 340, respectively, and then proceeds to S302.
- the interference detecting unit 340 detects the received signal quality, and sends the detected value of the signal quality to the carrier aggregation unit 310, and executes S303.
- the carrier aggregation unit 310 determines the semaphore. If the signal quality is lower than the set threshold, the process proceeds to S304. Otherwise, the process proceeds to S302 to continue the detection.
- the carrier aggregation unit 310 determines whether the frequency of the voice carrier signal is the lowest and whether the frequency of the data carrier signal is the highest. If yes, the process proceeds to S306, otherwise, the process proceeds to S305.
- S305 respectively lower the voice carrier signal and increase the frequency of the data carrier signal.
- S306 Adjust the frequency of the voice carrier signal to be higher than the intermediate frequency, and adjust the frequency of the data carrier signal to be lower than the intermediate frequency to perform carrier aggregation, and the re-aggregated signals are respectively sent to the voice radio frequency unit 320 and the data radio unit 330. Launch, then go to S307.
- the interference detecting unit 340 further detects the received signal quality, and sends the detected value of the signal quality to the carrier aggregation unit 310, and proceeds to S308.
- S308 The carrier aggregation unit 310 determines the signal quality of the received signal. If the signal quality is lower than the set threshold, the process proceeds to S309, otherwise, the process proceeds to S307 to continue the detection.
- the carrier aggregation unit 310 determines whether the frequency of the voice carrier signal is the highest and whether the frequency of the data carrier signal is the lowest. If yes, the process proceeds to S311, otherwise, the process proceeds to S310.
- S310 Increase the frequency of the voice carrier signal and decrease the frequency of the data carrier signal, respectively, and then return to S306.
- S311 Interrupt the voice communication or data communication, and only retain one (voice signal or data signal) communication mode until the end of this communication.
- the communication terminal provided by the embodiment of the present invention carries the carrier signal and the data signal of the voice signal.
- Wave carrier aggregation enables simultaneous voice communication and data communication; and adjusts the aggregated carrier of the communication terminal in real time without increasing the hardware structure and algorithm complexity of the communication terminal to reduce or eliminate voice communication and data communication.
- the mutual interference between them not only ensures the communication quality, but also flexibly configures the existing spectrum resources and improves the utilization efficiency of the spectrum.
Description
基于载波聚合技术实现混合通信的方法及通信终端 技术领域
本发明涉及通信技术领域， 具体是基于载波聚合技术实现混合通信的 方法及通信终端。 背景技术
随着通信技术和网络技术的高速发展， 无线宽带接入技术日趋成熟， 通信业务已从传统的语音通信业务类型扩展到一些新的业务类型， 如高速 数据下载或上传、 视频电话、 视频流媒体、 在线游戏等高速数据业务类型 等。 其中 LTE ( Long Term Evolution, 长期演进） 已经规模商用。 在以上技 术中， 其射频带宽可达 10MHz、 20MHz。 由于 CA ( Carrier Aggregation, 载波聚合）技术的引入其带宽还会更宽， 传送速率更高可达上千兆。 CA技 术在现有频傳规划的基础上可以灵活的对现有频段进行配置， 以满足高速 数据通信的要求， 但同时也要考虑和现有语音通信模式的兼容性和并存， 才能满足用户的实际需求和灵活利用现有频谱， 以及提高频谱利用效率的 目的。
而在现有技术中，主要是如何利用 CA技术实现高速数据通信，并没有 考虑数据通信和语音通信模式并存的问题。 发明内容
有鉴于此， 本发明的主要目的是提供一种基于载波聚合技术实现混合 通信的方法及通信终端， 利用 CA技术同时实现语音通信和数据通信。
本发明解决其技术问题所采用的技术方案是：
一种基于载波聚合技术实现混合通信的方法， 其包括步驟：
对语音信号的载波和数据信号的载波进行载波聚合；
将聚合后承载语音的语音载波信号和承载数据的数据载波信号分别发 射出去。
优选地， 将聚合后承载语音的语音载波信号和承载数据的数据载波信 号分别发射出去之后还包括：
实时检测接收的语音载波信号和数据载波信号的信号质量；
在信号质量的检测值低于预设的门限值时， 判断数据载波信号是否占 用最小带宽， 如果是， 则选择不同的频段对所述语音信号的载波与数据信 号的载波进行频带间的载波聚合；
如果否， 则降低聚合的数据载波信号所占带宽。
优选地， 选择不同的频段对接收到的语音信号的载波与数据信号的载 波进行频带间的载波聚合， 具体包括：
将语音信号的载波和数据信号的载波分别聚合在各自频段的中间频 率。
优选地， 选择不同的频段对接收到的语音信号的载波与数据信号的载 波进行频带间的载波聚合， 还包括：
实时检测接收的语音载波信号和数据载波信号的质量；
在信号质量的检测值低于预设的门限值时， 判断语音载波信号的频率 是否最低并且数据载波信号的频率是否最高， 如果是， 则重新对所述语音 信号的载波与数据信号的载波进行频带间的载波聚合；
如果否， 则分别降低语音载波信号的频率并增加数据载波信号的频率。 优选地， 重新对语音信号的载波与数据信号的载波进行频带间的载波 聚合， 具体包括：
实时检测接收的语音载波信号和数据载波信号的质量；
在信号质量的检测值低于预设的门限值时， 判断数据载波信号的频率
是否最低且聚合的语音载波信号的频率是否最高， 如果不是， 则增加语音 载波信号的频率或者减少数据载波信号的频率， 如果是， 则中断语音通信 或者数据通信。
一种通信终端， 其包括：
载波聚合单元， 用于对语音信号的载波和数据信号的载波进行载波聚 合；
语音射频单元， 用于将聚合后承载语音的语音载波信号发射出去； 数据射频单元， 用于将聚合后承载数据的数据载波信号发射出去。 优选地， 所述通信终端还包括： 干扰检测单元， 用于实时检测接收的 语音载波信号和数据载波信号的质量；
载波聚合单元具体用于在信号质量的检测值低于预设的门限值时， 判 断数据载波信号是否占用最小带宽， 如果是， 则选择不同的频段对所述语 音信号的载波与数据信号的载波进行频带间的载波聚合； 如果否， 则降低 数据载波信号所占带宽。
优选地， 载波聚合单元还用于： 将语音载波信号和数据载波信号分别 聚合在各自频段的中间频率。
优选地， 干扰检测单元还用于在进行频带间的载波聚合后， 实时检测 接收的语音载波信号和数据载波信号的质量；
载波聚合单元还用于在信号质量的检测值低于预设的门限值时， 判断 语音载波信号的频率是否最低并且数据载波信号的频率是否最高， 如果是， 则重新对所述语音信号的载波与数据信号的载波进行频带间的载波聚合； 如果否， 则分别降低语音载波信号的频率并增加数据载波信号的频率。
优选地， 干扰检测单元还用于在重新进行频带间的载波聚合后， 实时 检测接收的语音载波信号和数据载波信号的质量；
载波聚合单元， 还用于在信号质量的检测值低于预设的门限值时， 判
断数据载波信号的频率是否最低且语音载波信号的频率是否最高， 如果不 是， 则增加语音载波信号的频率或者减少数据载波信号的频率， 如果是， 则中断语音通信或者数据通信。
实施本发明的技术方案， 具有以下有益效果： 本发明通过将语音信号 的载波与数据信号的载波进行载波聚合， 能够同时实现语音通信和数据通 信； 并且在不增加通信终端硬件结构和算法复杂度的条件下， 实时的调整 通信终端的聚合载波， 以减小或消除语音通信和数据通信之间的相互干扰， 既保证了通信质量， 又可以对现有频谱资源进行灵活的配置， 提高了频谱 的利用效率。 附图说明
图 1 为本发明实施例提供的基于载波聚合技术实现混合通信的方法流 程示意图；
图 2 为本发明实施例提供的基于载波聚合技术实现混合通信的方法的 另一流程示意图；
图 3为本发明实施例提供的通信终端一实施例的结构示意图； 图 4为本发明实施例提供的通信终端的另一实施例的结构示意图； 图 5为本发明实施例提供的通信终端的一应用示例的流程示意图； 图 6为本发明实施例提供的通信终端的另一应用示例的流程示意图。 本发明目的的实现、 功能特点及优点将结合实施例， 参照附图做进一 步说明。 具体实施方式
为了使本发明的目的、 技术方案及优点更加清楚明白， 以下结合附图 及实施例， 对本发明进行进一步详细说明。 应当理解， 此处所描述的具体 实施例仅仅用以解释本发明， 并不用于限定本发明。
本发明实施例提供一种基于载波聚合技术实现混合通信的方法，如图 1 所示， 该方法包括步驟：
S110、 通信终端对语音信号的载波和数据信号的载波进行载波聚合。 该 S110中， 根据通信终端的工作模式选择进行载波聚合或不进行载波 聚合， 例如如果通信终端的语音信号和数据信号不在同一时刻工作的情况 下， 则通信终端分别按各自独立的工作方式工作， 只有当通信终端中的语 音通信和数据通信并存时， 才开始对语音信号的载波和数据信号的载波进 行载波聚合， 聚合后得到承载语音的语音载波信号和承载数据的数据载波 信号。 一般地， 数据载波信号占用的带宽大于语音载波信号的带宽。 通过 通信终端中的载波聚合单元， 首先把语音载波信号和数据载波信号采用就 近的原则进行频带内载波聚合。
S120、 将聚合后承载语音的语音载波信号和承载数据的数据载波信号 分别发射出去。
语音载波信号和数据载波信号分别送入通信终端的语音射频单元和数 据射频单元， 通过语音射频单元和数据射频单元分别将语音载波信号和数 据载波信号发送出去。
如图 2所示， 在其他的实施例中， 在上述 S120之前进一步包括： S130、 实时检测接收的语音载波信号和数据载波信号的信号质量； S140、 在信号质量的检测值低于预设的门限值时， 判断数据载波信号 是否占用最小带宽， 如果是， 则选择不同的频段对所述语音信号的载波与 数据信号的载波进行频带间的载波聚合； 如果否， 则降低聚合的数据载波 信号所占带宽。
由于语音通信的特性， 决定了语音载波信号占用带宽较小， 语音载波 信号产生的带外干扰较小， 根据通信终端分别检测接收的语音载波信号和 数据载波信号的信号质量， 来判断是否为由于载波聚合同时进行语音通信
和数据通信可能产生的相互干扰。 这种相互干扰一般是由于电路中不可避 免的非线性特性而产生的带外杂散（频带内聚合） 或谐波（频带间聚合） 引起的， 一般为语音载波信号的发射（上行）干扰数据载波信号的接收（下 行），或者为数据载波信号的发射（上行）干扰语音载波信号的接收（下行）， 而且这些干扰仅靠射频器件是无法消除的。 本发明实施例采用对接收信号 进行检测， 在检测到有相互干扰或者干扰值超过一定的门限值时， 重新选 择语音载波信号和数据载波信号的带宽， 以及聚合的载波的频段， 可解决 产生的相互干扰问题。
在该 S140中的选择不同的频段对接收到的语音载波信号与数据载波信 号进行频带间的载波聚合， 更为具体的， 将语音信号的载波和数据信号的 载波分别聚合在各自频段的中间频率。 在该 S140中， 在通信终端的语音信 号和数据信号同时使用的过程中 , 如果频带内的载波聚合不能消除干扰， 则进入频带间的载波聚合和检测过程， 按照语音信号的载波和数据信号的 载波分别位于各自频段中间位置的原则进行载波聚合。 同时实时检测接收 的语音载波信号和数据载波信号的信号质量， 如果语音载波信号或数据载 波信号的信号质量低于设定门限， 则增加语音载波信号和数据载波信号的 间隔： 一是、 同时降低数据载波信号的发射频率和增加语音载波信号的发 射频率； 二是、 同时增加数据载波信号的发射频率和降低语音载波信号的 发射频率。
另外， 在该实施例中， 该 S140中选择不同的频段对接收到的语音载波 信号与数据载波信号进行频带间的载波聚合， 还可以具体包括： 实时检测 接收的语音载波信号和数据载波信号的质量； 在信号质量的检测值低于预 设的门限值时， 判断语音载波信号的频率是否最低并且数据载波信号的频 率是否最高， 如果是， 则重新对语音信号的载波与数据信号的载波进行频 带间的载波聚合； 如果否， 则分别降低语音载波信号的频率并增加数据载
波信号的频率。 其中， 重新对语音信号的载波与数据信号的载波进行频带 间的载波聚合具体包括：
实时检测接收的语音载波信号和数据载波信号的质量； 在信号质量的 检测值低于预设的门限值时， 判断数据载波信号的频率是否最低且聚合的 语音载波信号的频率是否最高， 如果不是， 则增加语音载波信号的频率或 者减少数据载波信号的频率， 如果是， 则中断语音通信或者数据通信。 该 过程根据通信终端工作时射频发射信号的特点， 一是增加收发语音载波信 号和数据载波信号的频率间隔， 二是利用减小带宽的方法减小发射信号的 带外杂散干扰信号， 以减小同频段发射信号对接收信号的干扰， 根据载波 聚合的特性， 利用减小带宽的方法， 在增加收发频率间隔同时， 也把带外 杂散有效的降低了， 从而减小或消除语音载波信号和数据载波信号相互间 干扰。
本发明实施例还提供一种通信终端， 如图 3所示， 该通信终端包括： 载波聚合单元 310，用于对语音信号的载波和数据信号的载波进行载波 聚合；
语音射频单元 320, 用于将聚合后承载语音的语音载波信号发射出去； 数据射频单元 330, 用于将聚合后承载数据的数据载波信号发射出去。 具体的， 本实施例中， 通信终端在正常工作时， 根据工作场景和自身 业务的要求， 通过载波聚合单元 310选择性的进行载波聚合。 例如如果在 语音通信进行的同时又要进行数据通信， 占用一定的带宽和发射一定的射 频功率和基站进行通信， 一般地， 数据通信占用的带宽大于语音通信的带 宽。 同时在载波聚合单元 310 的控制下， 首先 4巴语音载波信号和数据载波 信号采用就近的原则进行频带内载波聚合， 聚合后的信号分别送入语音射 频单元 320和数据射频单元 330发射出去，
在其他的实施例中， 更为具体的， 如图 4所示， 通信终端还包括： 干
扰检测单元 340, 用于实时检测接收的语音载波信号和数据载波信号的质 量；
载波聚合单元 310具体用于在信号质量的检测值低于预设的门限值时， 判断数据载波信号是否占用最小带宽， 如果是， 则选择不同的频段对所述 语音信号的载波与数据信号的载波进行频带间的载波聚合； 如果否， 则降 低数据载波信号所占带宽。
图 5是本发明通信终端实施例在频段内的载波聚合实现和干扰检测的 流程示意图。 结合图 4, 如图 5所示， 该检测和载波聚合实现的方法包括以 下步驟：
S201 : 通信终端在正常工作时， 根据工作场景和自身业务的要求， 通 过载波聚合单元 310选择性的进行载波聚合。 例如如果在语音通信进行的 同时又要进行数据通信， 占用一定的带宽和发射一定的射频功率和基站进 行通信， 一般地， 数据通信占用的带宽大于语音通信的带宽。 同时在载波 聚合单元 310 的控制下， 首先把语音载波信号和数据载波信号釆用就近的 原则进行频带内载波聚合， 聚合后的信号将分别送入语音射频单元 320和 数据射频单元 330发射出去， 然后进入 S202。
S202: 干扰检测单元 340对接收到的信号质量进行检测， 并将信号质 量的检测值送入到载波聚合单元 310 , 并进入 S203。
S203 : 载波聚合单元 310进行信号质量的判定， 如果信号质量低于设 定的门限值， 则进入 S204 , 否则进入 S201。
S204: 载波聚合单元 310判断数据载波信号占用带宽是否最小， 如果 数据载波信号占用带宽是最小， 则进入 S201 , 否则进入 S205或者进行频带 间的载波聚合。
根据载波聚合实现的原理， 如果数据载波信号占用带宽不是最小， 则 将相应的载波聚合后的数据载波信号的带宽减小到下一等级带宽， 重新对
语音信号的载波与数据信号的载波进行载波聚合， 则相应的射频带外杂散 干扰就会降低。
S205: P条低一级数据载波信号的带宽， 返回 S201。
本发明实施例根据通信终端工作时射频发射信号的特点减小同频段发 射信号对接收信号的干扰， 一是增加信号收发的频率间隔， 二是减小发射 信号带宽以减小带外杂散干扰信号， 从而减小或消除相互间干扰。
在其他的实施例中， 更为具体的， 载波聚合单元 310还用于： 将语音 载波信号和数据载波信号分别聚合在各自频段的中间频率。
在其他的实施例中， 更为具体的， 干扰检测单元 340还用于在进行频 带间的载波聚合后， 实时检测接收的语音载波信号和数据载波信号的质量； 载波聚合单元 310还用于在信号质量的检测值低于预设的门限值时， 判断语音载波信号的频率是否最低并且数据载波信号的频率是否最高， 如 果是， 则重新对语音信号的载波与数据信号的载波进行频带间的载波聚合； 如果否， 则分别降低语音载波信号的频率并增加数据载波信号的频率。
在其他的实施例中， 更为具体的， 干扰检测单元 340还用于在重新进 行频带间的载波聚合后， 实时检测接收的语音载波信号和数据载波信号的 质量；
载波聚合单元 310, 还用于在信号质量的检测值低于预设的门限值时， 判断数据载波信号的频率是否最低且语音载波信号的频率是否最高， 如果 不是， 则增加语音载波信号的频率或者减少数据载波信号的频率， 如果是， 则中断语音通信或者数据通信。
下面提供上述通信终端的应用示例：
图 6是本发明的实施例的频带间的载波聚合和干扰检测的流程示意图， 结合图 4， 如图 6所示， 频带间的载波聚合和干扰检测方法包括以下步驟： S301 : 如果通信终端在频带内进行的载波聚合不能满足语音通信和数
据通信同时工作的要求， 则载波聚合单元 310选择不同的频段进行频带间 的载波聚合， 首先将语音信号的载波和数据信号的载波分别聚合在各自频 段的中间频率， 将聚合后的语音载波信号和数据载波信号分别送入语音射 频单元 320和数据射频单元 340， 然后进入 S302。
S302: 干扰检测单元 340对接收到的信号质量进行检测， 并将信号质 量的检测值送入到载波聚合单元 310 , 执行 S303。
S303 : 载波聚合单元 310进行信号 量的判定， 如果信号质量低于设 定的门限值， 则进入 S304 , 否则执行 S302继续进行检测。
S304: 载波聚合单元 310判断语音载波信号的频率是否最低以及数据 载波信号的频率是否最高， 如果是则进入 S306, 否则进入 S305。
S305: 分别 低语音载波信号和增加数据载波信号的频率。
S306: 将语音载波信号的频率调到高于中间频率， 同时把数据载波信 号的频率调到低于中间频率重新进行载波聚合， 重新聚合后的信号分别送 入语音射频单元 320和数据射频单元 330发射出去， 然后进入 S307。
S307: 干扰检测单元 340再对接收到的信号质量进行检测， 并将信号 质量的检测值送入到载波聚合单元 310， 进入 S308。
S308: 载波聚合单元 310对接收到的信号进行信号质量的判定， 如果 信号质量低于设定的门限值， 则进入 S309, 否则进入 S307继续进行检测。
S309: 载波聚合单元 310判断语音载波信号的频率是否最高且数据载 波信号的频率是否最低， 如果是则进入 S311 , 否则进入 S310。
S310: 分别增加语音载波信号的频率和减小数据载波信号的频率， 然 后返回 S306。
S311 : 中断语音通信或者数据通信， 只保留一种 （语音信号或者数据 信号）通信模式， 直至本次通信结束。
本发明实施例提供的通信终端通过将语音信号的载波与数据信号的载
波进行载波聚合， 能够同时实现语音通信和数据通信； 并且在不增加通信 终端硬件结构和算法复杂度的条件下， 实时的调整通信终端的聚合载波， 以减小或消除语音通信和数据通信之间的相互干扰， 既保证了通信质量， 又可以对现有频谱资源进行灵活的配置， 提高了频谱的利用效率。
以上仅为本发明的较佳实施例而已， 并不用以限制本发明， 凡在本发 明的精神和原则之内所作的任何修改、 等同替换和改进等， 均应包含在本 发明的保护范围之内。
Claims
1、 一种基于载波聚合技术实现混合通信的方法， 其特征在于， 包括： 对语音信号的载波和数据信号的载波进行载波聚合；
将聚合后承载语音的语音载波信号和承载数据的数据载波信号分别发 射出去。
2、 如权利要求 1所述的方法， 其特征在于， 所述将聚合后承载语音的 语音载波信号和承载数据的数据载波信号分别发射出去之前还包括：
实时检测接收的语音载波信号和数据载波信号的信号质量；
在信号质量的检测值低于预设的门限值时， 判断数据载波信号是否占 用最小带宽， 如果是， 则选择不同的频段对所述语音信号的载波与数据信 号的载波进行频带间的载波聚合；
如果否， 则降低聚合的数据载波信号所占带宽。
3、 如权利要求 2所述的方法， 其特征在于， 所述选择不同的频段对接 收到的语音信号的载波与数据信号的载波进行频带间的载波聚合， 具体包 括：
将所述语音信号的载波和数据信号的载波分别聚合在各自频段的中间 频率。
4、 如权利要求 2所述的方法， 其特征在于， 所述选择不同的频段对接 收到的语音信号的载波与数据信号的载波进行频带间的载波聚合， 还包括： 实时检测接收的语音载波信号和数据载波信号的质量；
在信号质量的检测值低于预设的门限值时， 判断语音载波信号的频率 是否最低并且数据载波信号的频率是否最高， 如果是， 则重新对所述语音 信号的载波与数据信号的载波进行频带间的载波聚合；
如果否， 则分别降低语音载波信号的频率并增加数据载波信号的频率。
5、 如权利要求 4所述的方法， 其特征在于， 所述重新对语音信号的载 波与数据信号的载波进行频带间的载波聚合， 具体包括：
实时检测接收的语音载波信号和数据载波信号的质量；
在信号质量的检测值低于预设的门限值时， 判断数据载波信号的频率 是否最低且聚合的语音载波信号的频率是否最高， 如果不是， 则增加语音 载波信号的频率或者减少数据载波信号的频率， 如果是， 则中断所述语音 通信或者数据通信。
6、 一种通信终端， 其特征在于， 包括：
载波聚合单元， 用于对语音信号的载波和数据信号的载波进行载波聚 合；
语音射频单元， 用于将聚合后承载语音的语音载波信号发射出去； 数据射频单元， 用于将聚合后承载数据的数据载波信号发射出去。
7、 如权利要求 6所述的通信终端， 其特征在于， 还包括： 干扰检测单 元， 用于实时检测接收的语音载波信号和数据载波信号的质量；
所述载波聚合单元具体用于在信号质量的检测值低于预设的门限值 时， 判断数据载波信号是否占用最小带宽， 如果是， 则选择不同的频段对 所述语音信号的载波与数据信号的载波进行频带间的载波聚合； 如果否， 则降低数据载波信号所占带宽。
8、 如权利要求 7所述的通信终端， 其特征在于， 所述载波聚合单元还 用于： 将所述语音信号的载波和数据信号的载波分别聚合在各自频段的中 间频率。
9、 如权利要求 7所述的通信终端， 其特征在于， 所述干扰检测单元还 用于在进行频带间的载波聚合后 , 实时检测接收的语音载波信号和数据载 波信号的质量；
所述载波聚合单元还用于在信号质量的检测值低于预设的门限值时， 判断语音载波信号的频率是否最低并且数据载波信号的频率是否最高， 如 果是， 则重新对所述语音信号的载波与数据信号的载波进行频带间的载波 聚合； 如果否， 则分别降低语音载波信号的频率并增加数据载波信号的频 率。
10、 如权利要求 9 所述的通信终端， 其特征在于， 所述干扰检测单元 还用于在重新进行频带间的载波聚合后， 实时检测接收的语音载波信号和 数据载波信号的质量；
所述载波聚合单元， 还用于在信号质量的检测值低于预设的门限值时， 判断数据载波信号的频率是否最低且语音载波信号的频率是否最高， 如果 不是， 则增加语音载波信号的频率或者减少数据载波信号的频率， 如果是， 则中断所述语音通信或者数据通信。
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