WO2015035572A1 - 触发功率余量报告的方法、终端和系统 - Google Patents

触发功率余量报告的方法、终端和系统 Download PDF

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Publication number
WO2015035572A1
WO2015035572A1 PCT/CN2013/083311 CN2013083311W WO2015035572A1 WO 2015035572 A1 WO2015035572 A1 WO 2015035572A1 CN 2013083311 W CN2013083311 W CN 2013083311W WO 2015035572 A1 WO2015035572 A1 WO 2015035572A1
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WIPO (PCT)
Prior art keywords
power headroom
base station
downlink
flexible
configuration information
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PCT/CN2013/083311
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English (en)
French (fr)
Inventor
杨晓东
权威
胡振兴
张戬
Original Assignee
华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201380002347.3A priority Critical patent/CN105264850B/zh
Priority to PCT/CN2013/083311 priority patent/WO2015035572A1/zh
Publication of WO2015035572A1 publication Critical patent/WO2015035572A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/14Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1469Two-way operation using the same type of signal, i.e. duplex using time-sharing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • H04L5/0092Indication of how the channel is divided
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/30TPC using constraints in the total amount of available transmission power
    • H04W52/36TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/365Power headroom reporting

Definitions

  • the embodiments of the present invention relate to the field of communications technologies, and in particular, to a method, a terminal, and a system for triggering a power headroom report. Background technique
  • Time Division Duplex For the Long Term Evolution (LTE) Time Division Duplex (TDD) system, time resources are allocated in the uplink and downlink directions. Specifically, the TDD frame structure supports 7 different uplink and downlink times. Proportional allocation (see Table 1 below for details, ie configuration 0-6)),
  • the base station can be configured according to the characteristics of the traffic. See Table 1.
  • the seven configurations include four types of 5ms periods and three types of 10ms periods.
  • the downlink to uplink transition interval is included every 5ms.
  • a downlink to uplink transition interval is included every 10 ms, where "D" represents a downlink subframe, "U” represents an uplink subframe, and "S” represents a special subframe including a transition interval.
  • the base station performs static configuration on the cell according to the characteristics of the cell traffic.
  • the traffic of the cell changes dynamically.
  • the LTE is discussing that the base station can dynamically adjust the usage of the uplink and downlink resources.
  • the problem of the ratio of uplink and downlink proportions of the TDD of the cell so that the terminal can use different TDD ratios listed in Table 1 in different periods.
  • the terminal adopts the uplink and downlink ratio 0, in the next 40 ms.
  • the uplink-downlink ratio 2 is adopted, so that when the uplink service is long, the system can adopt the configuration of multiple uplink subframes, for example, configuration 0.
  • the configuration of the downlink subframe configuration can be adopted, for example, configuration 2. It can be seen that when the TDD matching information of the cell changes, it can be called as the uplink or as the downlink subframe.
  • the subframes that can only be uplink or downlink at any time are fixed subframes.
  • the terminal can convert between the uplink and downlink ratio 0 and the uplink and downlink ratio 2, then the subframes 3, 4, 8, 9 are flexible subframes, and the rest are fixed subframes.
  • the power headroom is reported to the base station, which is called Power Headroom Report (PHR).
  • PHR Power Headroom Report
  • the PHR is used to report the difference between the maximum transmit power of the terminal and the estimated uplink transmit power to the base station, so that the base station performs power control and uplink scheduling on the terminal according to the reported power headroom.
  • the triggering of the PHR report mainly includes the following situations: 1. The periodic PHR timer expires; 2. It is forbidden to report the PHR timer to expire or timeout, and the path loss changes after the last PHR report exceeds a certain threshold. 3, uplink secondary carrier activation, and so on.
  • the triggering condition for the PHR reported in the prior art is that the terminal reports the PHR of the fixed subframe sent by the base station according to the static configuration of the TDD matching information of the cell, and the obtained information has certain limitations, so the base station is
  • the application scenario of dynamically configuring TDD matching information in a cell requires a corresponding triggering method for PHR reporting, so that the base station can perform uplink scheduling more accurately.
  • the foregoing embodiments of the present invention provide a method, a terminal, and a system for triggering a power headroom report.
  • the present invention provides a method for triggering a power headroom report, including: receiving, by a terminal, a time division duplex TDD uplink and downlink flexible ratio configuration information, and triggering a power headroom report;
  • the terminal determines that an uplink resource is available in a transmission time interval and can accommodate the power headroom report, the terminal reports the power headroom report to the base station.
  • the receiving base station sends a time division duplex TDD uplink and downlink flexible ratio configuration information
  • the trigger power headroom report specifically includes:
  • the terminal When the terminal receives the TDD uplink and downlink flexible ratio configuration information sent by the base station through the high layer signaling, the terminal triggers the power headroom report.
  • the receiving base station sends the time division duplex TDD uplink and downlink flexible ratio configuration information, and the trigger power headroom report is specific.
  • the terminal receives the TDD uplink and downlink flexible configuration configuration information sent by the base station through the high layer signaling, and triggers the power headroom report when the power headroom reporting function is configured by the base station.
  • the receiving base station sends the time division duplex TDD uplink and downlink flexible ratio configuration information
  • the trigger power headroom report specifically includes:
  • the terminal receives the TDD uplink and downlink flexible configuration configuration information sent by the base station through the high layer signaling, and receives the TDD uplink and downlink proportion configuration information that is sent by the base station through the physical downlink control channel PDCCH to indicate the TDD uplink and downlink proportion configuration information. Volume report.
  • the receiving base station sends the time division duplex TDD uplink and downlink flexible ratio configuration information
  • the trigger power headroom report specifically includes:
  • the terminal receives the TDD uplink and downlink flexible configuration configuration information that is sent by the base station through the high layer signaling, and receives the uplink and downlink proportion configuration information that is sent by the base station through the physical downlink control channel PDCCH to indicate the terminal TDD;
  • the terminal determines that the flexible subframe is to be converted from the downlink subframe to the uplink subframe according to the TDD uplink and downlink proportion configuration information and the currently used TDD uplink and downlink flexible configuration configuration information, the terminal triggers the power headroom report.
  • the receiving the base station sends the time division duplex TDD uplink and downlink flexible ratio configuration information
  • the trigger power headroom report specifically includes:
  • the terminal receives the TDD uplink and downlink flexible configuration configuration information sent by the base station through the high layer signaling, and triggers the power balance when receiving the handover command sent by the base station, or when switching to the target cell, or when the media intervention control resets the MAC reset Volume report.
  • the uplink resource available specifically includes:
  • Upstream resources are available in fixed subframes or in flexible subframes.
  • the trigger power headroom report includes:
  • Power headroom report for flexible subframes or power headroom report for fixed subframes, or flexible subframes Power headroom report and power headroom report for fixed subframes.
  • the MAC layer control unit MAC CE carrying the power headroom are:
  • the logical channel number LCID in the corresponding MAC CE sub-header uses the LCID corresponding to the current power headroom, and the content format is one byte length.
  • the first bit is used to identify the power of the flexible subframe.
  • the MAC CE subheader and the content format of the power headroom are:
  • the LCID in the corresponding MAC CE subheader needs to be assigned a new LCID, and the content format is:
  • One byte is the power headroom of the flexible subframe
  • the second byte is the power headroom of the fixed subframe
  • the first byte is the power headroom of the fixed subframe
  • the second byte is the power remainder of the flexible subframe. the amount.
  • the present invention provides a terminal, including:
  • a triggering module configured to receive time-division duplex TDD uplink and downlink flexible proportion configuration information sent by the base station, and trigger a power headroom report;
  • the reporting module is configured to report the power headroom report to the base station if it is determined that an uplink resource is available in a transmission time interval and the power headroom report can be accommodated.
  • the trigger module is specifically configured to:
  • the power headroom report is triggered.
  • the trigger module is specifically configured to:
  • the TDD uplink and downlink flexible proportioning configuration information sent by the base station through the high layer signaling is received, and when the power headroom reporting function is configured by the base station, the power headroom report is triggered.
  • the trigger module is specifically configured to:
  • the trigger mode is specifically used to:
  • the power headroom report is triggered.
  • the trigger module is specifically configured to:
  • the uplink resource may specifically include:
  • Upstream resources are available in fixed subframes or in flexible subframes.
  • the trigger power headroom report includes:
  • the reporting module is specifically configured to:
  • the MAC layer sub-header and the content format of the MAC layer control unit carrying the power headroom are:
  • the logical power channel number LCID in the corresponding MAC CE sub-head adopts the current power balance
  • the quantity is reported to the corresponding LCID, and the content format is a length of one byte, and the first bit is used to identify the power headroom of the flexible subframe;
  • the MAC CE subheader and the content format of the power headroom are:
  • the LCID in the corresponding MAC CE subheader needs to be assigned a new LCID, and the content format is: One byte is the power headroom of the flexible subframe, the second byte is the power headroom of the fixed subframe, or the first byte is the power headroom of the fixed subframe, and the second byte is the power remainder of the flexible subframe. the amount.
  • the present invention provides a system for triggering a power headroom report, comprising: a base station, and any of the above terminals.
  • the terminal receives the time-division duplex TDD uplink and downlink flexible ratio configuration information sent by the base station, triggers the power headroom report, and the terminal determines whether it is at a transmission time interval. If the uplink resource is available and the power headroom report is received, the power headroom report is reported to the base station, so that the base station can obtain the power headroom information of the flexible subframe, so that the terminal can be more accurately scheduled for uplink scheduling, thereby improving The spectrum resource utilization of the system.
  • FIG. 1 is a flowchart of a method for triggering a power headroom report according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a terminal according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a system for triggering a power headroom report according to an embodiment of the present invention. detailed description
  • FIG. 1 is a flowchart of a method for triggering a power headroom report according to an embodiment of the present invention. As shown in FIG. 1, the method includes:
  • Step 100 The terminal receives the time-division duplex TDD uplink and downlink flexible proportion configuration information sent by the base station, and triggers a power headroom report;
  • the base station sends the TDD uplink and downlink flexible proportioning configuration information to the terminal through the high layer signaling or the broadcast message.
  • the specific format of the high layer signaling may be selected according to actual application requirements, such as Radio Resource Control (RRC) signaling.
  • RRC Radio Resource Control
  • the terminal obtains the TDD uplink and downlink flexible ratio configuration information sent by the base station, and triggers the power headroom report, where the trigger power headroom report includes: a power headroom report of the flexible subframe, or a power headroom report of the fixed subframe.
  • the TDD flexible ratio configuration information includes a set of possible TDD uplink and downlink proportion configurations, a downlink HARQ timing reference TDD uplink and downlink proportion configuration, an uplink HARQ timing reference TDD uplink and downlink proportion configuration, and a TDD uplink and downlink proportion configuration change.
  • One or more of the parameters such as the time when the TDD uplink and downlink proportion configuration change command is sent.
  • Step 101 The terminal, if it is determined that an uplink resource is available in a transmission time interval, and can accommodate the power headroom report, report the power headroom report to the base station.
  • the available uplink resources include: the base station grants the fixed subframe to indicate that the terminal uses the fixed subframe as the uplink resource, or the base station grants the flexible subframe. Instructing the terminal to use the flexible subframe as the uplink resource, or the base station grants the fixed subframe or the flexible subframe, and instructs the terminal to use the fixed subframe or the flexible subframe as the uplink resource.
  • the terminal determines that the uplink resource is available, it determines whether the uplink resource can accommodate the power headroom report according to the scheduling priority, and if yes, reports the power headroom report to the base station.
  • the MAC layer sub-header and the content format of the MAC layer control unit carrying the power headroom are: the logical power channel number LCID in the corresponding MAC CE sub-head adopts the current power balance The quantity is reported to the corresponding LCID, and the content format is a length of one byte. The first bit is used to identify the power headroom of the flexible subframe. If the terminal reports the power headroom of the fixed subframe and the flexible subframe to the base station at the same time, it carries The MAC CE subheader and the content format of the power headroom are as follows: The LCID in the corresponding MAC CE subheader needs to be assigned a new LCID.
  • the content format is: The first byte is the power headroom of the flexible subframe, and the second byte is fixed.
  • the power headroom of the subframe, or the first byte is the power headroom of the fixed subframe, and the second byte is the power of the flexible subframe.
  • the method for reporting the trigger power margin provided by the embodiment is received by the terminal when receiving the base station.
  • the duplex power TDD uplink and downlink flexible matching configuration information is triggered, and the power headroom report is triggered.
  • the power headroom report is reported to the base station, thereby realizing
  • the base station can obtain the power headroom information of the flexible subframe, so that the uplink scheduling of the terminal can be performed more accurately, and the spectrum resource utilization of the system is improved.
  • the terminal receives the TDD uplink and downlink flexible ratio configuration information sent by the base station, and the process of triggering the power headroom report includes a plurality of triggering time points, which are specifically described as follows:
  • Case 1 When the terminal receives the TDD uplink and downlink flexible ratio configuration information sent by the base station through the high layer signaling, the power headroom report is triggered;
  • Case 2 The terminal receives the TDD uplink and downlink flexible ratio configuration information sent by the base station through the high layer signaling, and triggers the power headroom report when the power headroom reporting function is configured by the base station;
  • Case 3 The terminal receives the base station through the high layer letter. And sending the TDD uplink and downlink flexible matching configuration information, and receiving the triggering power headroom report when the base station sends the TDD uplink and downlink proportion configuration information that is sent by the physical downlink control channel PDCCH to indicate the terminal;
  • Case 4 The terminal receives the TDD uplink and downlink flexible configuration configuration information sent by the base station through the high layer signaling, and receives the uplink and downlink proportion configuration information that is sent by the base station through the physical downlink control channel PDCCH.
  • the terminal determines that the flexible subframe is to be converted from the downlink subframe to the uplink subframe according to the TDD uplink and downlink proportion configuration information and the currently used TDD uplink and downlink flexible ratio configuration information, the terminal triggers the power headroom report;
  • Case 5 The terminal receives the TDD uplink and downlink flexible configuration configuration information sent by the base station through the high layer signaling, and triggers when receiving the handover command sent by the base station, or when switching to the target cell, or when the media intervention control resets the MAC reset. Power headroom report.
  • the system can select one or more trigger conditions to trigger the power headroom report according to actual application requirements.
  • the power control margin report is triggered.
  • the power control residual report function is configured, one mode is a function of configuring a power control remaining amount report, and the other mode is a function of triggering a power control remaining amount report when the configuration is activated to configure an uplink secondary carrier.
  • the terminal includes: a triggering module 1 1 and a reporting module 12, where the triggering module 1 1 is configured to receive a time division duplex TDD sent by a base station.
  • the uplink and downlink flexible matching configuration information is used to trigger the power headroom report.
  • the reporting module 12 is configured to report the power to the base station if it is determined that an uplink resource is available in a transmission time interval and can accommodate the power headroom report. Balance report.
  • the terminal provided in this embodiment triggers the power headroom report by receiving the uplink and downlink flexible ratio configuration information of the time division duplex TDD sent by the base station, and if it is determined that uplink resources are available in one transmission time interval, and can accommodate the power headroom report, Then, the power headroom report is reported to the base station, so that the base station can obtain the power headroom information of the flexible subframe, so that the terminal can be uplinked more accurately, and the spectrum resource utilization rate of the system is improved.
  • the terminal receives the TDD uplink and downlink flexible ratio configuration information sent by the base station, and the process of triggering the power headroom report includes a plurality of triggering time points, which are specifically described as follows:
  • the triggering module 1 1 is specifically used to: trigger the power headroom report when receiving the TDD uplink and downlink flexible ratio configuration information sent by the base station through the high layer signaling;
  • the triggering module 1 1 is specifically configured to: receive the TDD uplink and downlink flexible proportioning configuration information sent by the base station through the high layer signaling, and trigger the power headroom report when the power headroom reporting function is configured by the base station;
  • the triggering module 1 is specifically configured to: receive TDD uplink and downlink flexible configuration configuration information sent by the base station by using the high layer signaling, and receive the TDD sent by the base station by using the physical downlink control channel PDCCH to indicate the terminal.
  • the uplink and downlink proportion configuration information is triggered, the power headroom report is triggered;
  • the triggering module 1 1 is specifically configured to: receive TDD uplink and downlink flexible proportioning configuration information sent by the base station by using the high layer signaling, and receive the base station to pass the physical downlink control channel. And determining, by the PDCCH, the uplink and downlink proportion configuration information of the terminal TDD; determining, according to the TDD uplink and downlink proportion configuration information and the currently used TDD uplink and downlink flexible ratio configuration information, the learned downlink subframe from the downlink subframe When the switch is used for the uplink subframe, the triggering power margin is reported in the fifth case: the triggering module 11 is specifically configured to: receive the TDD uplink and downlink flexible proportion configuration information sent by the base station through the high layer signaling, and receive the handover command sent by the base station. When the switch to the target cell, or when the media intervention control resets the MAC reset, the power headroom report is triggered.
  • the system may select one or more trigger conditions to trigger the power headroom report according to actual application requirements.
  • the trigger power headroom report includes: a power headroom report of the flexible subframe, or a power headroom report of the fixed subframe, or a power headroom report of the flexible subframe and a power headroom of the fixed subframe. report.
  • the reporting module 12 is specifically configured to: if only the power headroom of the flexible subframe is reported to the base station, the MAC layer sub-header and the content format of the MAC layer control unit carrying the power headroom are: Corresponding to the logic in the MAC CE subheader The LCID of the channel number is reported by the current power headroom, and the content format is a length of one byte. The first bit is used to identify the power headroom of the flexible subframe.
  • FIG. 3 is a trigger power balance provided by the embodiment of the present invention.
  • a schematic diagram of a system for reporting a quantity as shown in FIG. 3, the system includes: a base station 1 and a terminal 2, wherein the terminal 2 is a terminal provided by the foregoing embodiment of the present invention, and the base station 1 is the above-mentioned The base station involved in the embodiment.

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Abstract

本发明提供一种触发功率余量报告的方法、终端和系统,其中,通过接收基站发送的时分双工TDD上下行灵活配比配置信息,触发功率余量报告,若判断在一个传输时间间隔有上行资源可用,且能够容纳功率余量报告,则向基站上报功率余量报告,从而实现了基站能够获得灵活子帧的功率余量信息,从而可以更加准确的对终端进行上行调度,提高了系统的频谱资源利用率。

Description

触发功率余量报告的方法、 终端和系统
技术领域
本发明实施例涉及通信技术领域, 尤其涉及一种触发功率余量报告的 方法、 终端和系统。 背景技术
针对长期演进(Long Term Evolut ion, LTE)的时分双工(Time Divi s ion Dupl exing, TDD)系统, 时间资源在上下行方向进行分配, 具体地, TDD帧 结构支持 7种不同的上下行时间比例分配 (详细见下面表 1所示, 即配置 0-6) ) ,
表 1
Figure imgf000003_0001
基站可以根据业务量的特性进行配置, 参见表 1, 这 7种配置包括 4 种 5ms周期和 3种 10ms周期的情况, 在 5ms周期的配置中, 每 5ms包含 一次下行到上行的转换间隔; 而在 10ms的周期配置中, 每 10ms包含一次 下行到上行的转换间隔, 其中 " D "表示下行子帧, "U "表示为上行子帧, " S "表示为包含转换间隔的特殊子帧。 现有技术中, 基站根据小区业务 量的特性对小区进行静态配置, 但是, 在实际应用中, 小区的业务量会动 态的发生变化, 目前 LTE 正在讨论基站可以基于上下行资源的使用情况 动态调整小区 TDD上下行比例配置的问题, 从而使得终端在不同的周期内 可以使用表 1中列举的不同的 TDD 配比, 比如在第一个 40ms内终端采用 的是上下行配比 0,在下一个 40ms采用上下行配比 2, 从而实现了当上行 业务多时系统就可以采用多上行子帧的配置比如配置 0,当下行业务多时 就可以采用下行子帧配置多的配置, 比如配置 2。 由此可见, 当小区的 TDD 配比信息发生变化时, 将既可以作为上行又可以作为下行的子帧叫做上下 行灵活子帧, 与之相对, 在任何时刻都只能是上行或下行的子帧则为固定 子帧。 比如通过系统动态配置, 终端可以在上下行配比 0和上下行配比 2 之间转换, 那么 3, 4, 8, 9号子帧就为灵活子帧, 其余为固定子帧。
在 LTE无线通信系统中, 当终端满足预设的触发条件和一定的上报条 件时会向基站上报功率余量, 称为功率余量上报(Power Headroom Report , PHR)。 PHR用于将终端的最大发射功率与估计的上行传输功率之差上报给 基站, 以便使基站根据上报的功率余量对终端进行功率控制和上行调度。 现有技术中, PHR上报的触发主要包括以下几种情况: 1、 周期 PHR定时器 到时; 2、 禁止上报 PHR定时器到时或超时, 且从上一次 PHR上报后路损 变化超过一定门限; 3、 上行辅载波激活, 等等。 然而针对现有技术中 PHR 上报的触发条件, 都是终端根据基站为小区静态配置 TDD配比信息的前提 下发送的固定子帧的 PHR上报, 获取的信息具有一定的局限性, 因此针对 基站为小区动态配置 TDD配比信息的应用场景亟需一种相应的 PHR上报的 触发方法, 以便基站更准确的进行上行调度。 发明内容
针对现有技术的上述缺陷, 本发明实施例提供一种触发功率余量报告 的方法、 终端和系统。
第一方面, 本发明提供一种触发功率余量报告的方法, 包括: 终端接收基站发送的时分双工 TDD上下行灵活配比配置信息, 触发功 率余量报告;
所述终端若判断在一个传输时间间隔有上行资源可用, 且能够容纳所 述功率余量报告, 则向所述基站上报所述功率余量报告。
结合第一方面的实现方式, 在第一种可能的实现方式中, 所述接收基 站发送的时分双工 TDD上下行灵活配比配置信息, 触发功率余量报告具体 包括:
终端接收基站通过高层信令发送的 TDD上下行灵活配比配置信息时, 触发功率余量报告。
结合第一方面的实现方式, 在第二种可能的实现方式中, 所述接收基 站发送的时分双工 TDD上下行灵活配比配置信息, 触发功率余量报告具体 包括:
终端接收基站通过高层信令发送的 TDD上下行灵活配比配置信息, 并 且被所述基站配置了功率余量报告功能时, 触发功率余量报告。
结合第一方面的实现方式, 在第三种可能的实现方式中, 所述接收基 站发送的时分双工 TDD上下行灵活配比配置信息, 触发功率余量报告具体 包括:
终端接收基站通过高层信令发送的 TDD上下行灵活配比配置信息, 并 且接收所述基站通过物理下行控制信道 PDCCH发送的、用于指示所述终端 的 TDD上下行比例配置信息时, 触发功率余量报告。
结合第一方面的实现方式, 在第四种可能的实现方式中, 所述接收基 站发送的时分双工 TDD上下行灵活配比配置信息, 触发功率余量报告具体 包括:
终端接收基站通过高层信令发送的 TDD上下行灵活配比配置信息, 并 且接收所述基站通过物理下行控制信道 PDCCH发送的、用于指示所述终端 TDD上下行比例配置信息;
所述终端若根据所述 TDD上下行比例配置信息和当前所用的 TDD上下 行灵活配比配置信息判断获知灵活子帧的将从下行子帧转换为上行子帧 使用时, 触发功率余量报告。
结合第一方面上述任一的实现方式, 在第五种可能的实现方式中, 所 述接收基站发送的时分双工 TDD上下行灵活配比配置信息, 触发功率余量 报告具体包括:
终端接收基站通过高层信令发送的 TDD上下行灵活配比配置信息, 并 且接收所述基站发送的切换命令时、 或切换到目标小区时、 或媒体介入控 制重置 MAC re set时, 触发功率余量报告。
结合第一方面上述任一的实现方式, 在第六种可能的实现方式中, 所 述上行资源可用具体包括:
在固定子帧, 或者在灵活子帧有上行资源可用。
结合第一方面上述任一的实现方式, 在第七种可能的实现方式中, 所 述触发功率余量报告包括:
灵活子帧的功率余量报告, 或固定子帧的功率余量报告, 或灵活子帧 的功率余量报告和固定子帧的功率余量报告。
结合第一方面第七种可能的实现方式, 在第八种可能的实现方式中, 若仅向所述基站上报灵活子帧的功率余量, 携带所述功率余量的 MAC层控 制单元 MAC CE子头及内容格式为: 对应 MAC CE子头中的逻辑信道号 LCID 采用当前功率余量上报对应的 LCID, 内容格式为一个字节的长度, 第一个 比特用于标识是灵活子帧的功率余量;
若向基站同时上报固定子帧和灵活子帧的功率余量, 携带功率余量的 MAC CE子头及内容格式为: 对应 MAC CE子头中 LCID需要分配一个新的 LCID , 内容格式为: 第一字节为灵活子帧的功率余量, 第二字节为固定子 帧的功率余量, 或者第一字节为固定子帧的功率余量, 第二字节为灵活子 帧的功率余量。
第二方面, 本发明提供一种终端, 包括:
触发模块, 用于接收基站发送的时分双工 TDD上下行灵活配比配置信 息, 触发功率余量报告;
上报模块, 用于若判断在一个传输时间间隔有上行资源可用, 且能够 容纳所述功率余量报告, 则向所述基站上报所述功率余量报告。
结合第二方面的实现方式, 在第一种可能的实现方式中, 所述触发模 块具体用于:
接收基站通过高层信令发送的 TDD上下行灵活配比配置信息时, 触发 功率余量报告。
结合第二方面的实现方式, 在第二种可能的实现方式中, 所述触发模 块具体用于:
接收基站通过高层信令发送的 TDD上下行灵活配比配置信息, 并且被 所述基站配置了功率余量报告功能时, 触发功率余量报告。
结合第二方面的实现方式, 在第三种可能的实现方式中, 所述触发模 块具体用于:
接收基站通过高层信令发送的 TDD上下行灵活配比配置信息, 并且接 收所述基站通过物理下行控制信道 PDCCH 发送的、 用于指示所述终端的 TDD上下行比例配置信息时, 触发功率余量报告。
结合第二方面的实现方式, 在第四种可能的实现方式中, 所述触发模 块具体用于:
接收基站通过高层信令发送的 TDD上下行灵活配比配置信息, 并且接 收所述基站通过物理下行控制信道 PDCCH发送的、 用于指示所述终端 TDD 上下行比例配置信息;
若根据所述 TDD上下行比例配置信息和当前所用的 TDD上下行灵活配 比配置信息判断获知灵活子帧的将从下行子帧转换为上行子帧使用时, 触 发功率余量报告。
结合第二方面的实现方式, 在第五种可能的实现方式中, 所述触发模 块具体用于:
接收基站通过高层信令发送的 TDD上下行灵活配比配置信息, 并且接 收所述基站发送的切换命令时、 或切换到目标小区时、 或媒体介入控制重 置 MAC reset时, 触发功率余量报告。
结合第二方面上述任一的实现方式, 在第六种可能的实现方式中, 所 述上行资源可用具体包括:
在固定子帧, 或者在灵活子帧有上行资源可用。
结合第二方面上述任一的实现方式, 在第七种可能的实现方式中, 所 述触发功率余量报告包括:
灵活子帧的功率余量报告, 或固定子帧的功率余量报告, 或灵活子帧 的功率余量报告和固定子帧的功率余量报告。
结合第二方面第七种可能的实现方式, 在第八种可能的实现方式中, 所述上报模块具体用于:
若仅向所述基站上报灵活子帧的功率余量, 携带所述功率余量的 MAC 层控制单元 MAC CE子头及内容格式为: 对应 MAC CE子头中的逻辑信道号 LCID采用当前功率余量上报对应的 LCID, 内容格式为一个字节的长度, 第一个比特用于标识是灵活子帧的功率余量;
若向基站同时上报固定子帧和灵活子帧的功率余量, 携带功率余量的 MAC CE子头及内容格式为: 对应 MAC CE子头中 LCID需要分配一个新的 LCID , 内容格式为: 第一字节为灵活子帧的功率余量, 第二字节为固定子 帧的功率余量, 或者第一字节为固定子帧的功率余量, 第二字节为灵活子 帧的功率余量。 第三方面, 本发明提供一种触发功率余量报告的系统, 包括: 基站, 以及上述任一的终端。
本发明实施例提供的触发功率余量报告的方法、 终端和系统, 通过终 端接收基站发送的时分双工 TDD上下行灵活配比配置信息, 触发功率余量 报告, 终端若判断在一个传输时间间隔有上行资源可用, 且能够容纳功率 余量报告, 则向基站上报功率余量报告, 从而实现了基站能够获得灵活子 帧的功率余量信息, 从而可以更加准确的对终端进行上行调度, 提高了系 统的频谱资源利用率。 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一简单地介绍, 显而易见 地, 下面描述中的附图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性的前提下, 还可以根据这些附图获得其他的 附图。 图 1为本发明实施例提供的一个触发功率余量报告的方法的流程图; 图 2为本发明实施例提供的一个终端的结构示意图;
图 3为本发明实施例提供的一个触发功率余量报告的系统的结构示意 图。 具体实施方式
为使本发明实施例的目的、 技术方案和优点更加清楚, 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做出创造性劳动前提 下所获得的所有其他实施例, 都属于本发明保护的范围。
图 1为本发明实施例提供的一个触发功率余量报告的方法的流程图, 如图 1所示, 该方法包括:
歩骤 100, 终端接收基站发送的时分双工 TDD上下行灵活配比配置信 息, 触发功率余量报告; 基站通过高层信令或者广播消息向终端发送 TDD上下行灵活配比配置 信息, 其中, 高层信令的具体形式可以根据实际的应用需要进行选择比如 无线资源控制协议(Radio Resource Control , RRC)信令。 从而终端获取 基站下发的 TDD上下行灵活配比配置信息,并且触发功率余量报告,其中, 触发功率余量报告包括: 灵活子帧的功率余量报告, 或固定子帧的功率余 量报告, 或灵活子帧的功率余量报告和固定子帧的功率余量报告。 其中, 触发灵活子帧的功率余量上报即终端根据灵活子帧配置的功控参数计算 得到灵活子帧的功率余量和 /或在灵活子帧中计算得到灵活子帧的功率余 量。 需要说明的是, TDD灵活配比配置信息包括可能的 TDD上下行比例配 置的集合, 下行 HARQ定时参考的 TDD上下行比例配置, 上行 HARQ定时参 考的 TDD 上下行比例配置, TDD 上下行比例配置改变的周期, 发送 TDD 上下行比例配置改变命令的时刻等参数中的一项或多项。
歩骤 101, 所述终端若判断在一个传输时间间隔有上行资源可用, 且 能够容纳所述功率余量报告, 则向所述基站上报所述功率余量报告。
终端触发功率余量报告后, 判断在一个传输时间间隔有上行资源可 用, 其中, 可用的上行资源具体包括: 基站授权固定子帧指示终端将固定 子帧用作上行资源, 或者基站授权灵活子帧指示终端将灵活子帧用作上行 资源, 或者基站授权固定子帧或者灵活子帧, 且指示终端将固定子帧或者 灵活子帧都可用作上行资源。 当终端判断获知有上行资源可用时, 根据调 度优先级确定该上行资源是否能够容纳功率余量报告, 若是, 则向基站上 报功率余量报告。 具体地, 终端若仅向基站上报灵活子帧的功率余量, 携 带功率余量的 MAC层控制单元 MAC CE子头及内容格式为: 对应 MAC CE子 头中的逻辑信道号 LCID采用当前功率余量上报对应的 LCID, 内容格式为 一个字节的长度, 第一个比特用于标识是灵活子帧的功率余量; 若终端向 基站同时上报固定子帧和灵活子帧的功率余量, 携带功率余量的 MAC CE 子头及内容格式为: 对应 MAC CE子头中 LCID需要分配一个新的 LCID, 内 容格式为: 第一字节为灵活子帧的功率余量, 第二字节为固定子帧的功率 余量, 或者第一字节为固定子帧的功率余量, 第二字节为灵活子帧的功率 本实施例提供的触发功率余量报告方法, 通过终端接收基站发送的时 分双工 TDD上下行灵活配比配置信息, 触发功率余量报告, 若判断在一个 传输时间间隔有上行资源可用, 且能够容纳功率余量报告, 则向基站上报 功率余量报告, 从而实现了基站能够获得灵活子帧的功率余量信息, 从而 可以更加准确的对终端进行上行调度, 提高了系统的频谱资源利用率。
需要说明的是, 针对上述实施例中的终端接收基站发送的 TDD上下行 灵活配比配置信息, 触发功率余量报告的过程包括很多种触发的时间点, 具体说明如下:
情况一: 终端接收基站通过高层信令发送的 TDD上下行灵活配比配置 信息时, 触发功率余量报告;
情况二: 终端接收基站通过高层信令发送的 TDD上下行灵活配比配置 信息, 并且被所述基站配置了功率余量报告功能时, 触发功率余量报告; 情况三: 终端接收基站通过高层信令发送的 TDD上下行灵活配比配置 信息, 并且接收所述基站通过物理下行控制信道 PDCCH发送的、 用于指示 所述终端的 TDD上下行比例配置信息时, 触发功率余量报告;
情况四: 终端接收基站通过高层信令发送的 TDD上下行灵活配比配置 信息, 并且接收所述基站通过物理下行控制信道 PDCCH发送的、 用于指示 所述终端 TDD上下行比例配置信息;
所述终端若根据所述 TDD上下行比例配置信息和当前所用的 TDD上下 行灵活配比配置信息判断获知灵活子帧的将从下行子帧转换为上行子帧 使用时, 触发功率余量报告;
情况五: 终端接收基站通过高层信令发送的 TDD上下行灵活配比配置 信息, 并且接收所述基站发送的切换命令时、 或切换到目标小区时、 或媒 体介入控制重置 MAC reset时, 触发功率余量报告。
可以理解的是, 针对上述的多种触发的时间点, 系统可以根据实际的 应用需要选择一种或者多种触发条件触发功率余量报告。
进一歩地, 终端被所述基站配置了功率余量报告功能, 则在激活配置 有上行的辅载波时, 触发功控余量报告。 所述配置了功控余量报告功能, 一种方式为配置功控余量报告的功能, 另一种方式为配置激活配置有上行 的辅载波时, 触发功控余量报告的功能。
本领域普通技术人员可以理解: 实现上述方法实施例的全部或部分歩 骤可以通过程序指令相关的硬件来完成, 前述的程序可以存储于一计算机 可读取存储介质中, 该程序在执行时, 执行包括上述方法实施例的歩骤; 而前述的存储介质包括: R0M、 RAM, 磁碟或者光盘等各种可以存储程序代 码的介质。
图 2为本发明实施例提供的一个终端的结构示意图, 如图 2所示, 该 终端包括: 触发模块 1 1和上报模块 12, 其中, 触发模块 1 1用于接收基站 发送的时分双工 TDD上下行灵活配比配置信息, 触发功率余量报告; 上报 模块 12用于若判断在一个传输时间间隔有上行资源可用, 且能够容纳所 述功率余量报告, 则向所述基站上报所述功率余量报告。
本实施例提供的终端中各模块的功能和处理流程, 可以参见上述图 1 所示的方法实施例, 其实现原理类似, 此处不再赘述。
本实施例提供的终端, 通过接收基站发送的时分双工 TDD上下行灵活 配比配置信息, 触发功率余量报告, 若判断在一个传输时间间隔有上行资 源可用, 且能够容纳功率余量报告, 则向基站上报功率余量报告, 从而实 现了基站能够获得灵活子帧的功率余量信息, 从而可以更加准确的对终端 进行上行调度, 提高了系统的频谱资源利用率。
需要说明的是, 针对上述实施例中的终端接收基站发送的 TDD上下行 灵活配比配置信息, 触发功率余量报告的过程包括很多种触发的时间点, 具体说明如下:
情况一: 触发模块 1 1 具体用于: 接收基站通过高层信令发送的 TDD 上下行灵活配比配置信息时, 触发功率余量报告;
情况二: 触发模块 1 1 具体用于: 接收基站通过高层信令发送的 TDD 上下行灵活配比配置信息, 并且被所述基站配置了功率余量报告功能时, 触发功率余量报告;
情况三: 触发模块 1 1 具体用于: 接收基站通过高层信令发送的 TDD 上下行灵活配比配置信息, 并且接收所述基站通过物理下行控制信道 PDCCH发送的、 用于指示所述终端的 TDD上下行比例配置信息时, 触发功 率余量报告;
情况四: 触发模块 1 1 具体用于: 接收基站通过高层信令发送的 TDD 上下行灵活配比配置信息, 并且接收所述基站通过物理下行控制信道 PDCCH发送的、 用于指示所述终端 TDD上下行比例配置信息; 若根据所述 TDD上下行比例配置信息和当前所用的 TDD上下行灵活配比配置信息判断 获知灵活子帧的将从下行子帧转换为上行子帧使用时, 触发功率余量报 情况五: 触发模块 11具体用于: 接收基站通过高层信令发送的 TDD 上下行灵活配比配置信息, 并且接收所述基站发送的切换命令时、 或切换 到目标小区时、 或媒体介入控制重置 MAC reset时, 触发功率余量报告。
可以理解的是, 针对上述的多种触发的时间点, 系统可以根据实际的 应用需要选择一种或者多种触发条件触发功率余量上报。
基于上述实施例, 所述触发功率余量报告包括: 灵活子帧的功率余量 报告, 或固定子帧的功率余量报告, 或灵活子帧的功率余量报告和固定子 帧的功率余量报告。
上报模块 12 具体用于: 若仅向所述基站上报灵活子帧的功率余量, 携带所述功率余量的 MAC层控制单元 MAC CE子头及内容格式为: 对应 MAC CE子头中的逻辑信道号 LCID采用当前功率余量上报对应的 LCID, 内容格 式为一个字节的长度, 第一个比特用于标识是灵活子帧的功率余量; 若向 基站同时上报固定子帧和灵活子帧的功率余量, 携带功率余量的 MAC CE 子头及内容格式为: 对应 MAC CE子头中 LCID需要分配一个新的 LCID, 内 容格式为: 第一字节为灵活子帧的功率余量, 第二字节为固定子帧的功率 余量, 或者第一字节为固定子帧的功率余量, 第二字节为灵活子帧的功率 图 3为本发明实施例提供的一个触发功率余量报告的系统的结构示意 图, 如图 3所示, 该系统包括: 基站 1和终端 2, 其中, 终端 2为本发明 上述实施例提供的终端, 基站 1为本发明上述实施例中涉及到的基站。
本实施例提供的功率余量上报系统中各装置的功能和处理流程, 可以 参见上述所示的方法实施例,其实现原理和技术效果类似,此处不再赘述。
最后应说明的是: 以上实施例仅用以说明本发明的技术方案, 而非对 其限制; 尽管参照前述实施例对本发明进行了详细的说明, 本领域的普通 技术人员应当理解: 其依然可以对前述各实施例所记载的技术方案进行修 改, 或者对其中部分技术特征进行等同替换; 而这些修改或者替换, 并不 使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims

权 利 要 求 书
1、 一种触发功率余量报告的方法, 其特征在于, 包括:
终端接收基站发送的时分双工 TDD上下行灵活配比配置信息, 触发功 率余量报告;
所述终端若判断在一个传输时间间隔有上行资源可用, 且能够容纳所 述功率余量报告, 则向所述基站上报所述功率余量报告。
2、 根据权利要求 1 所述的触发功率余量报告的方法, 其特征在于, 所述接收基站发送的时分双工 TDD上下行灵活配比配置信息, 触发功率余 量报告具体包括:
终端接收基站通过高层信令发送的 TDD上下行灵活配比配置信息时, 触发功率余量报告。
3、 根据权利要求 1 所述的触发功率余量报告的方法, 其特征在于, 所述接收基站发送的时分双工 TDD上下行灵活配比配置信息, 触发功率余 量报告具体包括:
终端接收基站通过高层信令发送的 TDD上下行灵活配比配置信息, 并 且被所述基站配置了功率余量报告功能时, 触发功率余量报告。
4、 根据权利要求 1 所述的触发功率余量报告的方法, 其特征在于, 所述接收基站发送的时分双工 TDD上下行灵活配比配置信息, 触发功率余 量报告具体包括:
终端接收基站通过高层信令发送的 TDD上下行灵活配比配置信息, 并 且接收所述基站通过物理下行控制信道 PDCCH发送的、用于指示所述终端 的 TDD上下行比例配置信息时, 触发功率余量报告。
5、 根据权利要求 1 所述的触发功率余量报告的方法, 其特征在于, 所述接收基站发送的时分双工 TDD上下行灵活配比配置信息, 触发功率余 量报告具体包括:
终端接收基站通过高层信令发送的 TDD上下行灵活配比配置信息, 并 且接收所述基站通过物理下行控制信道 PDCCH发送的、用于指示所述终端 TDD上下行比例配置信息;
所述终端若根据所述 TDD上下行比例配置信息和当前所用的 TDD上下 行灵活配比配置信息判断获知灵活子帧的将从下行子帧转换为上行子帧 使用时, 触发功率余量报告。
6、 根据权利要求 1 所述的触发功率余量报告的方法, 其特征在于, 所述接收基站发送的时分双工 TDD上下行灵活配比配置信息, 触发功率余 量报告具体包括:
终端接收基站通过高层信令发送的 TDD上下行灵活配比配置信息, 并 且接收所述基站发送的切换命令时、 或切换到目标小区时、 或媒体介入控 制重置 MAC reset时, 触发功率余量报告。
7、 根据权利要求 1-5任一所述的触发功率余量报告的方法, 其特征 在于, 所述上行资源可用具体包括:
在固定子帧, 或者在灵活子帧有上行资源可用。
8、 根据权利要求 1-5任一所述的触发功率余量报告的方法, 其特征 在于, 所述触发功率余量报告包括:
灵活子帧的功率余量报告, 或固定子帧的功率余量报告, 或灵活子帧 的功率余量报告和固定子帧的功率余量报告。
9、 根据权利要求 8所述的触发功率余量报告的方法, 其特征在于, 若仅向所述基站上报灵活子帧的功率余量, 携带所述功率余量的 MAC 层控制单元 MAC CE子头及内容格式为: 对应 MAC CE子头中的逻辑信道号 LCID采用当前功率余量上报对应的 LCID, 内容格式为一个字节的长度, 第一个比特用于标识是灵活子帧的功率余量;
若向基站同时上报固定子帧和灵活子帧的功率余量, 携带功率余量的
MAC CE子头及内容格式为: 对应 MAC CE子头中 LCID需要分配一个新的 LCID , 内容格式为: 第一字节为灵活子帧的功率余量, 第二字节为固定子 帧的功率余量, 或者第一字节为固定子帧的功率余量, 第二字节为灵活子 帧的功率余量。
10、 一种终端, 其特征在于, 包括:
触发模块, 用于接收基站发送的时分双工 TDD上下行灵活配比配置信 息, 触发功率余量报告;
上报模块, 用于若判断在一个传输时间间隔有上行资源可用, 且能够 容纳所述功率余量报告, 则向所述基站上报所述功率余量报告。
11、 根据权利要求 10所述的终端, 其特征在于, 所述触发模块具体 用于:
接收基站通过高层信令发送的 TDD上下行灵活配比配置信息时, 触发 功率余量报告。
12、 根据权利要求 10所述的终端, 其特征在于, 所述触发模块具体 用于:
接收基站通过高层信令发送的 TDD上下行灵活配比配置信息, 并且被 所述基站配置了功率余量报告功能时, 触发功率余量报告。
13、 根据权利要求 10所述的终端, 其特征在于, 所述触发模块具体 用于:
接收基站通过高层信令发送的 TDD上下行灵活配比配置信息, 并且接 收所述基站通过物理下行控制信道 PDCCH 发送的、 用于指示所述终端的 TDD上下行比例配置信息时, 触发功率余量报告。
14、 根据权利要求 10所述的终端, 其特征在于, 所述触发模块具体 用于:
接收基站通过高层信令发送的 TDD上下行灵活配比配置信息, 并且接 收所述基站通过物理下行控制信道 PDCCH发送的、 用于指示所述终端 TDD 上下行比例配置信息;
若根据所述 TDD上下行比例配置信息和当前所用的 TDD上下行灵活配 比配置信息判断获知灵活子帧的将从下行子帧转换为上行子帧使用时, 触 发功率余量报告。
15、 根据权利要求 10所述的终端, 其特征在于, 所述触发模块具体 用于:
接收基站通过高层信令发送的 TDD上下行灵活配比配置信息, 并且接 收所述基站发送的切换命令时、 或切换到目标小区时、 或媒体介入控制重 置 MAC reset时, 触发功率余量报告。
16、 根据权利要求 10-15任一所述的终端, 其特征在于, 所述上行资 源可用具体包括:
在固定子帧, 或者在灵活子帧有上行资源可用。
17、 根据权利要求 10-15任一所述的终端, 其特征在于, 所述触发功 率余量报告包括: 灵活子帧的功率余量报告, 或固定子帧的功率余量报告, 或灵活子帧 的功率余量报告和固定子帧的功率余量报告。
18、 根据权利要求 17所述的终端, 其特征在于, 所述上报模块具体 用于:
若仅向所述基站上报灵活子帧的功率余量, 携带所述功率余量的 MAC 层控制单元 MAC CE子头及内容格式为: 对应 MAC CE子头中的逻辑信道号 LCID采用当前功率余量上报对应的 LCID, 内容格式为一个字节的长度, 第一个比特用于标识是灵活子帧的功率余量;
若向基站同时上报固定子帧和灵活子帧的功率余量, 携带功率余量的 MAC CE子头及内容格式为: 对应 MAC CE子头中 LCID需要分配一个新的 LCID, 内容格式为: 第一字节为灵活子帧的功率余量, 第二字节为固定子 帧的功率余量, 或者第一字节为固定子帧的功率余量, 第二字节为灵活子 帧的功率余量。
19、 一种触发功率余量报告的系统, 其特征在于, 包括: 基站, 以及 如权利要求 10-18任一所述的终端。
PCT/CN2013/083311 2013-09-11 2013-09-11 触发功率余量报告的方法、终端和系统 WO2015035572A1 (zh)

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