WO2012022248A1 - Method and device for power headroom report - Google Patents
Method and device for power headroom report Download PDFInfo
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- WO2012022248A1 WO2012022248A1 PCT/CN2011/078417 CN2011078417W WO2012022248A1 WO 2012022248 A1 WO2012022248 A1 WO 2012022248A1 CN 2011078417 W CN2011078417 W CN 2011078417W WO 2012022248 A1 WO2012022248 A1 WO 2012022248A1
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- user terminal
- phr
- power
- pusch
- mpr
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/36—TPC 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
- H04W52/365—Power headroom reporting
Definitions
- the present invention relates to the field of communications, and in particular, to a method and apparatus for reporting a power headroom report. Background technique
- LTE Long Term Evolution
- LTE-A Long Term Evolution Advanced, LTE Technology Subsequent Evolution
- the peak rate of the system is greatly improved compared with LTE, and it is required to achieve downlink lGbps and uplink 500 Mbps. If only one carrier with a maximum bandwidth of 20MHz is used, the peak rate requirement cannot be achieved.
- the LTE-A system needs to expand the bandwidth that the terminal can use, thereby introducing a CA (Carrier Aggregation) technology, which is to aggregate multiple consecutive or discontinuous carriers under the same eNB (base station), Serve the UE (User Equipment) to provide the required rate. These aggregated carriers are called CC (Component Carrier). Each cell can be a member carrier, and cells (member carriers) under different eNBs cannot be aggregated. In order to ensure that the LTE UE can work under each aggregated carrier, each carrier does not exceed 20 MHz at the maximum.
- the CA technology of LTE-A is shown in Figure 2.
- the base station of LTE-A has four carriers that can be aggregated. The base station can perform data transmission with the UE on four carriers at the same time to improve system throughput.
- the UE When the UE is transmitted in a continuous PRB (Physical Resource Block), as shown in part A of Figure 3, the UE can transmit at the maximum power, for example, 20dbm.
- PRB Physical Resource Block
- PHR Power Headroom Report
- PUSCH Physical Uplink Shared Channel
- Pcmax the maximum transmit power that the terminal can tolerate if it meets the radio frequency indicator.
- LTE Rel-8 since the uplink only supports continuous resource allocation, the maximum power backoff difference of different terminals is small, about l-2dB.
- the MAC CE design of the PHR is as shown in Table 1.
- the LCID (Locale IDs) value is 11010 to identify the value corresponding to the PHR.
- PEMAX is configured by the upper layer
- P P . wasC i ass is the power level of the UE
- MPR Maximum Power Reduction
- A-MPR Additional Maximum Power Reduction
- T c is determined by the frequency band feedback used.
- the UE works in a multi-carrier case, for example, the UE works in two uplink CCs at the same time, the two uplink CCs belong to one PA (Power Amplifier), and the MPR sent by the two uplinks is 3db.
- the maximum power level of the UE is 23dbm
- the transmit power of the PUSCH on the first CC is lOdbm
- the transmit power of the PUSCH on the second CC is 7 dbm.
- the PHR calculation for each CC takes into account the MPR transmitted by the two CCs.
- the base station can only use the PHR on the first CC and the PHR on the second CC.
- the UE on the first CC consumes 13dbm
- the second CC consumes lOdbm, so that the two CCs consume altogether.
- 23dbm so the base station judges that this UE does not have power remaining at present, in fact, this UE has a relative power of 3db. That is to say, in the case that the PHR is currently reported based on the CC, the base station cannot accurately know the power surplus of the UE. Summary of the invention
- the embodiment of the invention provides a method and a device for reporting a power headroom report, so that the base station can accurately know the power surplus of the UE.
- An embodiment of the present invention provides a method for reporting a power headroom report, including: acquiring a maximum power drop value MPR generated when a user terminal works on multiple carriers; and reporting a PHR calculation formula and a location according to a configured power headroom of the user terminal The MPR calculation is based on the PHR of the user terminal; The calculated PHR of the user terminal is reported to the base station.
- An embodiment of the present invention provides a user terminal, including:
- An obtaining unit configured to obtain a maximum power drop value MPR generated when the user terminal works on multiple carriers
- a calculating unit configured to report a PHR calculation formula according to the configured power headroom of the user terminal, and the MPR calculation is based on a PHR of the user terminal;
- the reporting unit is configured to report the calculated PHR of the user terminal to the base station.
- An embodiment of the present invention provides a method for reporting a power headroom report, including: receiving a PHR based on a user terminal that is reported;
- An embodiment of the present invention provides a base station, including:
- a receiving unit configured to receive the reported PHR based on the user terminal
- a processing unit configured to learn, according to the PHR based on the user terminal, a power headroom of the user terminal.
- the embodiment of the invention has at least the following advantages:
- the user terminal When the user terminal works on multiple carriers, it calculates and reports to the base station based on the user terminal.
- the PHR enables the base station to accurately know the power headroom of the user terminal based on the received PHR based on the user terminal.
- FIG. 1 is a schematic diagram of a single carrier in an LTE system in the prior art
- FIG. 2 is a schematic diagram of a CA technology of LTE-A in the prior art
- 3 is a schematic diagram of power consumption of a UE in a continuous PRB and a non-contiguous PRB in the prior art
- 4 is a schematic flowchart of a method for reporting a power headroom report according to Embodiment 1 of the present invention
- FIG. 5 is a schematic structural diagram of a user terminal according to Embodiment 7 of the present invention.
- FIG. 6 is a schematic structural diagram of a base station according to Embodiment 8 of the present invention. detailed description
- Embodiment 1 of the present invention provides a method for reporting a power headroom report, as shown in FIG. 4, including the following steps:
- Step 401 Obtain a maximum power drop value MPR generated when the user terminal works on multiple carriers.
- Step 402 Report a PHR calculation formula according to the configured power headroom of the user terminal, and the MPR calculation is based on a PHR of the user terminal.
- Step 403 Report the calculated PHR of the user terminal to the base station.
- the PHR calculation formula is:
- Pcmax is the maximum transmit power of the user terminal
- Ppuschn is the PUSCH power on the CCn
- n is the natural number
- the Ppucch is the transmit power of the PUCCH (Physical Uplink Control Channel) on the primary carrier, multiple-CC-MPR MPR caused by sending multiple CCs together.
- PUCCH Physical Uplink Control Channel
- the PHR calculation formula can also be:
- PHR ue Pcmax - Ppuschl - Ppusch2 - .... - Ppuschn - Ppucch;
- Pcmax is the difference between the maximum transmit power of the user terminal and the MPR caused by the multiple CCs
- Ppuschn is the PUSCH power on the component carrier CCn
- Ppucch is the transmit power of the PUCCH on the primary carrier.
- the user terminal sends or does not transmit a PUSCH on the CCn, where the Ppuschn is the real power when the user terminal transmits the PUSCH on the CCn or the virtual power when the user terminal does not send the PUSCH on the CCn.
- the upper >3 ⁇ 4 triggering condition of the PHR of the user terminal is one or more of the following: uplink new data needs to be sent, and the difference between the path loss of the current user terminal and the Pathloss of the last PHR sending time is higher than the setting The threshold is fixed, and the prohibitPHR-timer times out;
- the parameters of the PHR are reconfigured
- the MPR when multiple component carriers are sent together exceeds a certain threshold
- the user terminal generates power scaling (power scaling);
- the user terminal may also calculate and report the PHR based on the component carrier.
- the triggering condition of the PHR of the user terminal is that the PHR is based on the component carrier.
- Embodiment 2 of the present invention provides a method for reporting a power headroom report.
- the power headroom report is reported as a PHR report based on the UE, and the calculation method of the PHR is first introduced.
- PHR PUSC H Pcmax , c - Ppusch - Ppucch
- PHR PUSC H Pcmax, c - Ppusch - multiple— CC—MPR ( 3 )
- multiple-CC-MPR can also be placed in the parameter definition of Pcmax, c, that is, multiple-CC-MPR does not appear in the calculation formula of PHR.
- the calculation formula for defining the PHR based on the UE is:
- Ppusch 1 is the PUSCH power on CC1
- Ppusch2 is the PUSCH power on CC2
- Ppuschn is the PUSCH power on CCn
- Ppucch is the transmit power of PUCCH on the primary carrier
- multiple-CC-MPR is the MPR caused by multiple CCs transmitting together.
- the PUSCH and the PUCCH in the PHR of the UE may be either real or virtual, that is, the UE may send or not transmit the PUSCH and the PUCCH on the CCn.
- the virtual PUCCH and PUSCH formats may be scheduled in advance, or may be used in the last scheduling of the CC, or actually appear on a CC, such as a reference to a PCell (primary cell) or a PUSCH or PUCCH on a CC with the lowest or highest frequency. , power is estimated using a virtual format.
- the reporting of the per CCde PHR refers to reporting the respective PHR of each CC.
- the PHR reported to the per UE refers to the PHR reported to the entire uplink, and is not reported separately for each CC.
- the UE's PHR trigger can use the existing trigger, which is:
- the PHR will also be triggered.
- the PHR trigger of the UE may also adopt a new mode, including one or more of the following: when multiple CCs are sent together, the trigger UE PHR; when multiple MPs send the MPR, that is, multiple_CC_MPR exceeds a certain threshold, the PHR of the trigger UE; The CC configuration is added, but the PHR of the trigger UE is not reconfigured for the PH parameter; the PHR of the UE is generated when the UE has the power scaling trigger; the PHR of the UE is triggered by the PHR of the CC and the PHR of the UE is reported; Trigger the PHR of the UE.
- the UE-based PHR reports a new LCID identifier, as shown in Table 2, using the LCID value of 11001.
- the third embodiment of the present invention provides a method for reporting a power headroom report.
- the trigger UE PHR reports When multiple CCs are sent together, the trigger UE PHR reports.
- the UE works on two uplink CCs at the same time, and the two uplink CCs belong to one PA.
- the PHR of the CC is triggered, and the PHR of the UE is also transmitted.
- the multiple-CC_MPR sent by the two uplinks is 3db (other types of MPR or A-MPR are ignored).
- the maximum power level of the UE is 23 dbm, and the transmit power of the PUSCH on the first CC is 10 dbm.
- the PUSCH transmit power on the second CC is 7 dbm.
- the PHR of this UE is identified by the new LCID. In this way, the base station can know that the UE still has a relative power of 3 db according to the PHR of the UE.
- the fourth embodiment of the present invention provides a method for reporting a power headroom report, and the UE PHR adopts a virtual format.
- the PHR report of the trigger UE is taken as an example. It is assumed that the UE is configured with two uplink CCs, and only one uplink CC is sent at a certain time. At this time, the CC-based PHR trigger is performed, when the CC-based The PHR is up, and the PHR of the UE is reported and reported to the PHR of the UE. And at this time, the UE PHR reported by the UE is in a virtual format. At this time, since there is no PUSCH transmission on CC2, the PUSCH power on CC2 can be calculated in a virtual format, and the virtual multiple_CC_MPRo is used.
- the maximum power level of the UE is 23 dbm, and the transmission power of the real PUSCH on the first CC is 10 dbm.
- the PUSCH on the second CC is not actually sent, false correction page (rule 91)
- the virtual multiple-CC_MPR is 3db (other types of MPR or A-MPR are ignored).
- the base station can use the virtual UE PHR of the UE to make reference for the next scheduling, that is, when the next base station schedules two uplink carriers to be transmitted together, it can be known how much power the UE has left at this time.
- a fifth embodiment of the present invention provides a method for reporting a power headroom report, where the UE simultaneously reports an actual UE PHR and a virtual UE PHR.
- the PHR report of the trigger UE is taken as an example.
- the UE is configured with three uplink CCs, and at the same time, two uplink CCs are simultaneously transmitted.
- the CC PHR trigger when The PHR of the UE is reported, and the PHR of the UE is reported and reported to the PHR of the UE.
- the real UE PHR and the virtual UE PHR can be reported at the same time.
- the PUSCH power on CC3 can be calculated in a virtual format.
- virtual multiple-CC-MPR is adopted.
- the calculation methods of the actual and virtual UE PHR are the same as those of the third and fourth embodiments.
- a sixth embodiment of the present invention provides a method for reporting a power headroom report.
- the PHR of the UE is triggered.
- the UE sends up, it finds that the required power of the system-configured resource exceeds the maximum transmit power of the UE. Then, the UE needs to transmit according to the maximum power that can be sent. Therefore, power scaling occurs.
- the PHR of the trigger UE is And proceed to the top.
- a seventh embodiment of the present invention provides a user terminal, as shown in FIG. 5, comprising: an obtaining unit 11 , configured to acquire a maximum power drop value MPR generated when a user terminal works on multiple carriers;
- the calculating unit 12 is configured to report the PHR meter according to the configured power headroom of the user terminal Calculating the formula and the MPR calculation based on the PHR of the user terminal;
- the reporting unit 13 is configured to report the calculated PHR of the user terminal to the base station.
- the PHR calculation formula is:
- Pcmax is the maximum transmit power of the user terminal
- Ppuschn is the PUSCH power on the CCn
- Ppucch is the transmit power of the PUCCH on the primary carrier
- the multiple-CC-MPR is the MPR caused by the multiple CCs being sent together.
- the PHR calculation formula is:
- PHR ue Pcmax - Ppuschl - Ppusch2 - .... - Ppuschn - Ppucch; where Pcmax is the difference between the maximum transmit power of the user terminal transmitted with multiple CCs, and Ppuschn is the PUSCH on the component carrier CCn Power, Ppucch The transmit power of the PUCCH on the primary carrier.
- the user terminal sends or does not transmit a PUSCH on the CCn, where the Ppuschn is the real power when the user terminal transmits the PUSCH on the CCn or the virtual power when the user terminal does not send the PUSCH on the CCn.
- the upper >3 ⁇ 4 triggering condition of the PHR of the user terminal is one or more of the following: uplink new data needs to be sent, and the difference between the path loss of the current user terminal and the Pathloss of the last PHR sending time is higher than the setting The threshold is fixed, and the prohibitPHR-timer times out;
- the parameters of the PHR are reconfigured
- the MPR when multiple component carriers are sent together exceeds a certain threshold
- the user terminal generates power scaling
- the user terminal further includes:
- the component carrier PHR processing unit 14 is configured to calculate the PHR based on the component carrier.
- the reporting trigger condition of the PHR of the user terminal is that the PHR is reported based on the component carrier.
- the eighth embodiment of the present invention provides a base station, as shown in FIG. 6, including:
- the receiving unit 21 is configured to receive the reported PHR based on the user terminal;
- the processing unit 22 is configured to learn, according to the PHR based on the user terminal, a power headroom of the user terminal.
- the method further includes: a sending unit 23, configured to send signaling to the user terminal, and trigger the user terminal to report the PHR.
- the user terminal when the user terminal works on multiple carriers, it calculates and performs PHR based on the user terminal on the base station, so that the base station can accurately know the power headroom of the user terminal according to the received PHR based on the user terminal.
- the present invention can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is a better implementation. the way.
- the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for making a A computer device (which may be a personal computer, server, or network device, etc.) performs the methods described in various embodiments of the present invention.
- modules in the apparatus in the embodiments may be distributed in the apparatus of the embodiment according to the description of the embodiments, or may be correspondingly changed in one or more apparatuses different from the embodiment.
- the modules of the above embodiments may be combined into one module, or may be further split into a plurality of sub-modules.
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Abstract
Disclosed are a method and a device for power headroom report (PHR). The method comprises: acquiring a maximum power reduction (MPR) generated by a user equipment (UE) when working under multiple carriers; calculating a UE-based PHR on the basis of a PHR calculation formula of the UE allocated and the MPR; reporting to a base station the UE PHR derived from the calculation. In the present invention, when working under multiple carriers, the UE performs the calculation of, and reports to the base station, the UE-based PHR, thus allowing the base station to be aware of the precise power headroom of the UE on the basis of the UE-based PHR received.
Description
功率余量报告上报的方法和装置 本申请要求以下中国专利申请的优先权: Method and apparatus for reporting power headroom report This application claims the priority of the following Chinese patent application:
于 2010年 8月 16日提交中国专利局,申请号为 2010102547486, 发明名称为 "功率余量报告上报的方法和装置" 的中国专利申请。 技术领域 It was submitted to the Chinese Patent Office on August 16, 2010, and the application number is 2010102547486. The invention is entitled "Chinese Patent Application for Method and Apparatus for Reporting Power Headroom Report". Technical field
本发明涉及通信领域,尤其涉及一种功率余量报告上报的方法和 装置。 背景技术 The present invention relates to the field of communications, and in particular, to a method and apparatus for reporting a power headroom report. Background technique
在 LTE ( Long Term Evolution , 长期演进)及以前的无线通信系 统中, 一个小区中只有一个载波, 在 LTE***中最大带宽为 20MHz, 如图 1所示。 在 LTE-A ( LTE Advanced, LTE技术的后续演进) 系 统中, ***的峰值速率比 LTE有巨大的提高, 要求达到下行 lGbps、 上行 500Mbps。 如果只使用一个最大带宽为 20MHz的载波是无法达 到峰值速率要求的。因此, LTE-A***需要扩展终端可以使用的带宽, 由此引入了 CA ( Carrier Aggregation , 载波聚合 )技术, 即将同一个 eNB (基站) 下的多个连续或不连续的载波聚合在一起, 同时为 UE ( User Equipment, 用户终端)服务, 以提供所需的速率。 这些聚合 在一起的载波称为 CC ( Component Carrier, 成员载波)。 每个小区都 可以是一个成员载波, 不同 eNB下的小区 (成员载波) 不能聚合。 为了保证 LTE的 UE能在每一个聚合的载波下工作,每一个载波最大 不超过 20MHz。 LTE-A的 CA技术如图 2所示, LTE-A的基站下有 4 个可以聚合的载波,基站可以同时在 4个载波上和 UE进行数据传输, 以提高***吞吐量。 In LTE (Long Term Evolution) and previous wireless communication systems, there is only one carrier in a cell, and the maximum bandwidth in the LTE system is 20 MHz, as shown in Figure 1. In the LTE-A (LTE Advanced, LTE Technology Subsequent Evolution) system, the peak rate of the system is greatly improved compared with LTE, and it is required to achieve downlink lGbps and uplink 500 Mbps. If only one carrier with a maximum bandwidth of 20MHz is used, the peak rate requirement cannot be achieved. Therefore, the LTE-A system needs to expand the bandwidth that the terminal can use, thereby introducing a CA (Carrier Aggregation) technology, which is to aggregate multiple consecutive or discontinuous carriers under the same eNB (base station), Serve the UE (User Equipment) to provide the required rate. These aggregated carriers are called CC (Component Carrier). Each cell can be a member carrier, and cells (member carriers) under different eNBs cannot be aggregated. In order to ensure that the LTE UE can work under each aggregated carrier, each carrier does not exceed 20 MHz at the maximum. The CA technology of LTE-A is shown in Figure 2. The base station of LTE-A has four carriers that can be aggregated. The base station can perform data transmission with the UE on four carriers at the same time to improve system throughput.
当 UE以连续 PRB ( Physical Resource Block, 物理资源块)发送 时, 如图 3 中的 A部分所示, 这时 UE可以以最大功率发送, 比如 20dbm。 当 UE以非连续 PRB发送时, 如图 3中的 B部分所示, 这时
两个 PRB的总发送功率并不能达到最大功率 20dbm, 需要减少, 比 如减少 3dbm, 这意味着 UE这时最大只能采用 17dbm发送。 这种情 况在上行多载波一起发送的情况下也会出现。 When the UE is transmitted in a continuous PRB (Physical Resource Block), as shown in part A of Figure 3, the UE can transmit at the maximum power, for example, 20dbm. When the UE transmits in a non-contiguous PRB, as shown in part B of Figure 3, then The total transmit power of the two PRBs does not reach the maximum power of 20dbm, which needs to be reduced, for example, by 3dbm. This means that the UE can only transmit at 17dbm at this time. This situation also occurs when the uplink multi-carrier is transmitted together.
为了使基站获知 UE的剩余功率,现有技术中提供了 PHR( Power Headroom Report, 功率余量报告 )机制。 LTE的 R8/9***中, PHR 的定义是针对 PUSCH ( Physical Uplink Shared Channel, 物理上行共 享信道 ) 的, 也就是 PHR = Pcmax - PPUSCH。 其中, Pcmax是终端满 足射频指标情况下能够允许的最大发射功率。 在 LTE Rel-8中, 由于 上行只支持连续的资源分配, 因此不同终端的最大功率回退差别很 小, 在 l-2dB左右。 PHR的 MAC CE设计如表 1所示, 采用 LCID ( Locale IDs, 区域设置 ID )值为 11010标识 PHR对应的值。 In order to enable the base station to know the remaining power of the UE, a PHR (Power Headroom Report) mechanism is provided in the prior art. In the R8/9 system of LTE, the definition of PHR is for PUSCH (Physical Uplink Shared Channel), that is, PHR = Pcmax - P PUSC H. Where Pcmax is the maximum transmit power that the terminal can tolerate if it meets the radio frequency indicator. In LTE Rel-8, since the uplink only supports continuous resource allocation, the maximum power backoff difference of different terminals is small, about l-2dB. The MAC CE design of the PHR is as shown in Table 1. The LCID (Locale IDs) value is 11010 to identify the value corresponding to the PHR.
表 1 Table 1
Index (索引) LCID values ( LCID值) Index LCID values (LCID values)
00000 CCCH (公共控制信道) 00000 CCCH (Common Control Channel)
00001-01010 Identity of the logical channel 00001-01010 Identity of the logical channel
(逻辑信道的身份) (identity of the logical channel)
01011-11001 Reserved (保留) 01011-11001 Reserved (reserved)
11010 Power Headroom Report 11010 Power Headroom Report
(功率余量报告 ) (power headroom report)
11011 C-RNTI 11011 C-RNTI
(小区无线网络临时标识) (Cell wireless network temporary identification)
11100 Truncated BSR 11100 Truncated BSR
(截断的緩沖区状态报告) (truncated buffer status report)
11101 Short BSR 11101 Short BSR
(短的緩沖区状态报告) (short buffer status report)
11110 Long BSR 11110 Long BSR
(长的緩沖区状态报告) (long buffer status report)
11111 Padding (寻呼)
在 LTE Rel-8中定义 Pcmax为: 11111 Padding (Paging) Define Pcmax in LTE Rel-8 as:
PcMAX L≤ PcMAX ≤ PcMAX H PcMAX L≤ PcMAX ≤ PcMAX H
PCMAX_L = MIN { PEMAX - ATc, PPOWERCLASS - MPR - A-MPR - ATC} PCMAX H = MIN {PEMAX, Ppowerciass} PCMAX_L = MIN { PEMAX - ATc, P POWERCLASS - MPR - A-MPR - AT C } PCMAX H = MIN {PEMAX, Ppowerciass}
其中, PEMAX 由高层配置, PP。werCiass 为 UE 的功率等级, MPR ( Maximum Power Reduction,最大功率下降值 )和 A-MPR( Additional Maximum Power Reduction, 额外最大功率下降值) 由协议规定, Tc 由使用的频带反馈决定。 Among them, PEMAX is configured by the upper layer, P P . werC i ass is the power level of the UE, MPR (Maximum Power Reduction) and A-MPR (Additional Maximum Power Reduction) are specified by the protocol, and T c is determined by the frequency band feedback used.
此时, 如果 UE工作在多载波情况下, 例如 UE同时工作在两个 上行 CC, 这两个上行 CC同属于一个 PA ( Power Amplifier, 功率放 大器), 这时由于两个上行一起发送的 MPR为 3db。 假定 UE 的最大 功率等级为 23dbm, 第一个 CC上 PUSCH的发送功率为 lOdbm, 第 二个 CC上的 PUSCH发送功率为 7 dbm。 每个 CC的 PHR计算都考 虑由于两个 CC一起发送的 MPR, 则 CC1上的 PHR为 PHR=23-10-3 = 10db, CC2的 PHR为 PHR=23-7-3 = 13db。 此时, 基站只能根据第 一个 CC上的 PHR和第二个 CC上的 PHR大概推出第一个 CC上 UE 消耗掉了 13dbm, 第二个 CC上消耗了 lOdbm, 这样两个 CC共消耗 23dbm, 因此基站判断这个 UE 目前并没有功率剩余, 其实这个 UE 是有相对 3db功率剩余的。 也就是说, 在当前基于 CC上报 PHR的 情况下, 基站无法准确获知 UE的功率剩余。 发明内容 At this time, if the UE works in a multi-carrier case, for example, the UE works in two uplink CCs at the same time, the two uplink CCs belong to one PA (Power Amplifier), and the MPR sent by the two uplinks is 3db. Assume that the maximum power level of the UE is 23dbm, the transmit power of the PUSCH on the first CC is lOdbm, and the transmit power of the PUSCH on the second CC is 7 dbm. The PHR calculation for each CC takes into account the MPR transmitted by the two CCs. The PHR on CC1 is PHR=23-10-3 = 10db, and the PHR of CC2 is PHR=23-7-3 = 13db. At this time, the base station can only use the PHR on the first CC and the PHR on the second CC. The UE on the first CC consumes 13dbm, and the second CC consumes lOdbm, so that the two CCs consume altogether. 23dbm, so the base station judges that this UE does not have power remaining at present, in fact, this UE has a relative power of 3db. That is to say, in the case that the PHR is currently reported based on the CC, the base station cannot accurately know the power surplus of the UE. Summary of the invention
本发明实施例提供了一种功率余量报告上报的方法和装置,使基 站能够准确获知 UE的功率剩余。 The embodiment of the invention provides a method and a device for reporting a power headroom report, so that the base station can accurately know the power surplus of the UE.
本发明实施例提供了一种功率余量报告上报的方法, 包括: 获取用户终端工作在多个载波时产生的最大功率下降值 MPR; 根据配置的用户终端的功率余量报告 PHR计算公式及所述 MPR 计算基于用户终端的 PHR;
向基站上报计算得到的所述用户终端的 PHR。 An embodiment of the present invention provides a method for reporting a power headroom report, including: acquiring a maximum power drop value MPR generated when a user terminal works on multiple carriers; and reporting a PHR calculation formula and a location according to a configured power headroom of the user terminal The MPR calculation is based on the PHR of the user terminal; The calculated PHR of the user terminal is reported to the base station.
本发明实施例提供了一种用户终端, 包括: An embodiment of the present invention provides a user terminal, including:
获取单元,用于获取用户终端工作在多个载波时产生的最大功率 下降值 MPR; An obtaining unit, configured to obtain a maximum power drop value MPR generated when the user terminal works on multiple carriers;
计算单元, 用于根据配置的用户终端的功率余量报告 PHR计算 公式及所述 MPR计算基于用户终端的 PHR; a calculating unit, configured to report a PHR calculation formula according to the configured power headroom of the user terminal, and the MPR calculation is based on a PHR of the user terminal;
上报单元, 用于向基站上报计算得到的所述用户终端的 PHR。 本发明实施例提供了一种功率余量报告上报的方法, 包括: 接收上报的基于用户终端的 PHR; The reporting unit is configured to report the calculated PHR of the user terminal to the base station. An embodiment of the present invention provides a method for reporting a power headroom report, including: receiving a PHR based on a user terminal that is reported;
根据所述基于用户终端的 PHR获知所述用户终端的功率余量。 本发明实施例提供了一种基站, 包括: The power headroom of the user terminal is learned according to the PHR based on the user terminal. An embodiment of the present invention provides a base station, including:
接收单元, 用于接收上报的基于用户终端的 PHR; a receiving unit, configured to receive the reported PHR based on the user terminal;
处理单元, 用于根据所述基于用户终端的 PHR获知所述用户终 端的功率余量。 And a processing unit, configured to learn, according to the PHR based on the user terminal, a power headroom of the user terminal.
与现有技术相比, 本发明实施例至少具有以下优点: Compared with the prior art, the embodiment of the invention has at least the following advantages:
用户终端工作在多个载波时计算并向基站上报基于用户终端的 When the user terminal works on multiple carriers, it calculates and reports to the base station based on the user terminal.
PHR, 使得基站能够根据接收到的基于用户终端的 PHR准确获知用 户终端的功率余量。 附图说明 面将对本发明的实施例或现有技术描述中所需要使用的附图作筒单 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。 The PHR enables the base station to accurately know the power headroom of the user terminal based on the received PHR based on the user terminal. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set forth in the drawings For the skilled person, other drawings can be obtained from these drawings without any creative work.
图 1是现有技术中 LTE***中单载波示意图; 1 is a schematic diagram of a single carrier in an LTE system in the prior art;
图 2是现有技术中 LTE-A的 CA技术示意图; 2 is a schematic diagram of a CA technology of LTE-A in the prior art;
图 3是现有技术中 UE以连续 PRB和非连续 PRB发送时功率示 意图;
图 4 是本发明实施例一提供的功率余量报告上报的方法的流程 示意图; 3 is a schematic diagram of power consumption of a UE in a continuous PRB and a non-contiguous PRB in the prior art; 4 is a schematic flowchart of a method for reporting a power headroom report according to Embodiment 1 of the present invention;
图 5是本发明实施例七提供的用户终端的结构示意图; FIG. 5 is a schematic structural diagram of a user terminal according to Embodiment 7 of the present invention; FIG.
图 6是本发明实施例八提供的基站的结构示意图。 具体实施方式 FIG. 6 is a schematic structural diagram of a base station according to Embodiment 8 of the present invention. detailed description
下面将结合本发明的实施例中的附图,对本发明的实施例中的技 术方案进行清楚、 完整地描述, 显然, 下面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, 都属于本发明的实施例保护的范围。 The technical solutions in the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. example. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without departing from the inventive scope are the scope of the embodiments of the present invention.
实施例一 Embodiment 1
本发明实施例一提供一种功率余量报告上报的方法, 如图 4 所 示, 包括以下步骤: Embodiment 1 of the present invention provides a method for reporting a power headroom report, as shown in FIG. 4, including the following steps:
步骤 401 , 获取用户终端工作在多个载波时产生的最大功率下降 值 MPR; Step 401: Obtain a maximum power drop value MPR generated when the user terminal works on multiple carriers.
步骤 402, 根据配置的用户终端的功率余量报告 PHR计算公式 及所述 MPR计算基于用户终端的 PHR; Step 402: Report a PHR calculation formula according to the configured power headroom of the user terminal, and the MPR calculation is based on a PHR of the user terminal.
步骤 403 , 向基站上报计算得到的所述用户终端的 PHR。 Step 403: Report the calculated PHR of the user terminal to the base station.
所述 PHR计算公式为: The PHR calculation formula is:
PHR ue = Pcmax - Ppuschl - Ppusch2一 .…一 Ppuschn - Ppucch - multiple— CC—MPR; PHR ue = Pcmax - Ppuschl - Ppusch2 a .... a Ppuschn - Ppucch - multiple - CC - MPR;
其中, Pcmax为所述用户终端的最大发射功率, Ppuschn为 CCn 上 PUSCH功率, n为自然数, Ppucch 为主载波上 PUCCH ( Physical Uplink Control Channel , 物理上行控制信道) 的发送功率, multiple— CC—MPR为多个 CC一起发送而引起的 MPR。 Pcmax is the maximum transmit power of the user terminal, Ppuschn is the PUSCH power on the CCn, n is the natural number, and the Ppucch is the transmit power of the PUCCH (Physical Uplink Control Channel) on the primary carrier, multiple-CC-MPR MPR caused by sending multiple CCs together.
所述 PHR计算公式还可以为: The PHR calculation formula can also be:
PHR ue = Pcmax - Ppuschl - Ppusch2 - .... - Ppuschn - Ppucch;
其中, Pcmax为所述用户终端的最大发射功率与多个 CC一起发 送而引起的 MPR的差, Ppuschn为成员载波 CCn上 PUSCH 功率, Ppucch为主载波上 PUCCH的发送功率。 PHR ue = Pcmax - Ppuschl - Ppusch2 - .... - Ppuschn - Ppucch; Where Pcmax is the difference between the maximum transmit power of the user terminal and the MPR caused by the multiple CCs, Ppuschn is the PUSCH power on the component carrier CCn, and Ppucch is the transmit power of the PUCCH on the primary carrier.
所述用户终端在 CCn上发送或者不发送 PUSCH, 所述 Ppuschn 为所述用户终端在 CCn上发送 PUSCH时的真实功率或者所述用户终 端不在 CCn上发送 PUSCH时的虚拟功率。 The user terminal sends or does not transmit a PUSCH on the CCn, where the Ppuschn is the real power when the user terminal transmits the PUSCH on the CCn or the virtual power when the user terminal does not send the PUSCH on the CCn.
所述用户终端的 PHR的上 >¾触发条件为以下一种或多种: 上行新数据需要发送、 且当前所述用户终端的路径丟失 Pathloss 与上次 PHR 发送时刻的 Pathloss 的差值高于设定的门限、 且 prohibitPHR-timer超时; The upper >3⁄4 triggering condition of the PHR of the user terminal is one or more of the following: uplink new data needs to be sent, and the difference between the path loss of the current user terminal and the Pathloss of the last PHR sending time is higher than the setting The threshold is fixed, and the prohibitPHR-timer times out;
periodicPHR-timer超时; periodicPHR-timer timeout;
PHR的参数进行重配; The parameters of the PHR are reconfigured;
多个成员载波一起发送; Multiple member carriers are sent together;
多个成员载波一起发送时的 MPR超过一定门限; The MPR when multiple component carriers are sent together exceeds a certain threshold;
新增成员载波配置但没有对 PHR参数重配; Added component carrier configuration but did not reconfigure PHR parameters;
所述用户终端发生 power scaling (功率缩放 ); The user terminal generates power scaling (power scaling);
有基于成员载波的 PHR上报; There is a PHR report based on the component carrier;
接收到基站发送的上报命令。 Received a report command sent by the base station.
该方法中, 所述用户终端还可以计算并上报基于成员载波的 PHR, 此时优选的, 所述用户终端的 PHR的上报触发条件为有基于 成员载波的 PHR上才艮。 In the method, the user terminal may also calculate and report the PHR based on the component carrier. In this case, the triggering condition of the PHR of the user terminal is that the PHR is based on the component carrier.
实施例二 Embodiment 2
本发明实施例二提供一种功率余量报告上报的方法。 Embodiment 2 of the present invention provides a method for reporting a power headroom report.
该功率余量报告上报为基于 UE的 PHR上报, 首先介绍该 PHR 的计算方式。 The power headroom report is reported as a PHR report based on the UE, and the calculation method of the PHR is first introduced.
具体的, 在 LTE的单载波***下目前只有一个载波的 PHR, 在 工作在多载波情况下 UE将对每个 CC维护一个 PHR, 此时针对 CC 的 PHR的计算方式有两种类型: Specifically, in the LTE single carrier system, there is currently only one carrier PHR. When working in multiple carriers, the UE will maintain one PHR for each CC. At this time, there are two types of PHR calculation methods for CC:
Type 1: PHRPUSCH= Pcmax , c - Ppusch ( 1 )
Type 2: PHRPUCCH + PUSCH = Pcmax , c - Ppusch - Ppucch ( 2 ) 考虑到多个 CC一起发送时产生的 MPR (本发明实施例中将该 MPR称为 multiple— CC—MPR ), 并且每个 CC的 PHR计算时 Pcmax, c都包括完整的 multiple— CC—MPR,因此,计算 CC的 PHR公式变为: Type 1: PHRPUSCH= Pcmax, c - Ppusch - multiple— CC—MPR ( 3 )Type 1: PHR PUSC H = Pcmax , c - Ppusch ( 1 ) Type 2: PHR PUC CH + PUSCH = Pcmax , c - Ppusch - Ppucch ( 2 ) Considering the MPR generated when a plurality of CCs are transmitted together (this MPR is called multiple-CC-MPR in the embodiment of the present invention), and each Pcmax, c of CC calculations include the complete multiple-CC-MPR. Therefore, the PHR formula for calculating CC becomes: Type 1: PHR PUSC H= Pcmax, c - Ppusch - multiple— CC—MPR ( 3 )
Type 2: PHRPUCCH + PUSCH = Pcmax , c - Ppusch - Ppucch - multiple— CC—MPR ( 4 ) Type 2: PHR PUC CH + PUSCH = Pcmax , c - Ppusch - Ppucch - multiple - CC—MPR ( 4 )
需要说明的是, 也可以把 multiple— CC—MPR放到 Pcmax, c 的 参数定义中 , 也就是在 PHR 的计算公式中并不 出现 multiple— CC—MPR。 It should be noted that multiple-CC-MPR can also be placed in the parameter definition of Pcmax, c, that is, multiple-CC-MPR does not appear in the calculation formula of PHR.
本发明实施例中, 定义基于 UE的 PHR的计算公式为: In the embodiment of the present invention, the calculation formula for defining the PHR based on the UE is:
PHR ue = Pcmax - Ppusch 1 - Ppusch2一 .…一 Ppuschn - Ppucch - multiple— CC—MPR; ( 5 ) PHR ue = Pcmax - Ppusch 1 - Ppusch2 - ... a Ppuschn - Ppucch - multiple - CC - MPR; ( 5 )
其中, Ppusch 1为 CC1上 PUSCH 功率, Ppusch2为 CC2上 PUSCH 功率, Ppuschn为 CCn上 PUSCH功率, Ppucch为主载波上 PUCCH 的发送功率; multiple— CC—MPR为多个 CC一起发送而引起的 MPR。 Ppusch 1 is the PUSCH power on CC1, Ppusch2 is the PUSCH power on CC2, Ppuschn is the PUSCH power on CCn, Ppucch is the transmit power of PUCCH on the primary carrier, and multiple-CC-MPR is the MPR caused by multiple CCs transmitting together.
当然也可以把 multiple— CC—MPR放到 Pcmax的参数定义中说明, 也就是在 PHR 的计算公式中并不出现 multiple— CC—MPR: Of course, you can also put multiple-CC-MPR in the parameter definition of Pcmax, that is, multiple-CC-MPR does not appear in the calculation formula of PHR:
PHR ue = Pcmax - Ppusch 1 - Ppusch2 - .... - Ppuschn - Ppucch ( 6 ) PHR ue = Pcmax - Ppusch 1 - Ppusch2 - .... - Ppuschn - Ppucch ( 6 )
需要说明的是, 计算 UE的 PHR中的 PUSCH和 PUCCH可以为 真实出现的也可以为虚拟的, 即 UE可以在 CCn上发送或者不发送 PUSCH和 PUCCH。 其中虚拟的 PUCCH和 PUSCH格式可以提前预 定, 也可以采用本 CC的最后一次调度, 或某个 CC上真实出现的, 比如参考 PCell (主小区)或频点最低或最高的 CC上的 PUSCH或 PUCCH, 功率采用虚拟的格式估计。 It should be noted that the PUSCH and the PUCCH in the PHR of the UE may be either real or virtual, that is, the UE may send or not transmit the PUSCH and the PUCCH on the CCn. The virtual PUCCH and PUSCH formats may be scheduled in advance, or may be used in the last scheduling of the CC, or actually appear on a CC, such as a reference to a PCell (primary cell) or a PUSCH or PUCCH on a CC with the lowest or highest frequency. , power is estimated using a virtual format.
如果 per CC的 PHR和 per UE的 PHR—起上报, 那么在 per CC
相同。 其中, 上报 per CCde PHR是指上报每个 CC各自的 . PHR, 上 报 per UE的 PHR是指上报上行整体的 PHR, 不针对每个 CC单独上 报。 If the PHR of the per CC and the PHR of the per UE are reported, then in the per CC the same. The reporting of the per CCde PHR refers to reporting the respective PHR of each CC. The PHR reported to the per UE refers to the PHR reported to the entire uplink, and is not reported separately for each CC.
下面介绍 PHR上报的触发方式: The following describes the triggering method for PHR reporting:
UE的 PHR trigger (触发器)可以采用现有的 trigger, 也就是: The UE's PHR trigger can use the existing trigger, which is:
1、 当上行新数据需要发送, 并且这时 UE侧的 Pathloss和上次 PHR发送时刻比, 改变高于设定的门限, 并且这时 prohibitPHR-timer 也超时了, 这时就会触发 PHR; 1. When the uplink new data needs to be sent, and at this time, the Pathloss of the UE side is compared with the last PHR transmission time, the change is higher than the set threshold, and at this time, the prohibitPHR-timer also times out, and then the PHR is triggered;
2、 当 periodicPHR-timer超时了同样也会触发 PHR; 2. When the periodicPHR-timer times out, the PHR will also be triggered.
3、 当 PHR的参数进行重配。 3. When the parameters of the PHR are reconfigured.
UE的 PHR trigger还可以采用新的方式, 包括下述一种或多种: 当多个 CC一起发送时则 trigger UE PHR; 当多个 CC发送的 MPR即 multiple_CC_MPR超过一定门限则 trigger UE的 PHR;新增 CC配置 但是并没有对 PH 参数重配 trigger UE的 PHR;当 UE发生了 power scaling trigger UE的 PHR;有基于 CC的 PHR上艮就 trigger UE的 PHR 并上报 UE的 PHR; 基站通过信令 trigger UE的 PHR。 The PHR trigger of the UE may also adopt a new mode, including one or more of the following: when multiple CCs are sent together, the trigger UE PHR; when multiple MPs send the MPR, that is, multiple_CC_MPR exceeds a certain threshold, the PHR of the trigger UE; The CC configuration is added, but the PHR of the trigger UE is not reconfigured for the PH parameter; the PHR of the UE is generated when the UE has the power scaling trigger; the PHR of the UE is triggered by the PHR of the CC and the PHR of the UE is reported; Trigger the PHR of the UE.
下面介绍基于 UE的 PHR上报的标识: The following describes the identity of the UE-based PHR report:
基于 UE的 PHR上报釆用新的 LCID标识,例如表 2所示,釆用 LCID值为 11001的标识。 The UE-based PHR reports a new LCID identifier, as shown in Table 2, using the LCID value of 11001.
表 2 Table 2
8 8
更正页 (细则第 91条)
11101 Short BSR (短的緩冲区状态报告 ) Correction page (Article 91) 11101 Short BSR (short buffer status report)
11110 Long BSR (长的緩冲区状态报告 ) 11110 Long BSR (long buffer status report)
11111 Padding (填充) 11111 Padding (filled)
实施例三 Embodiment 3
本发明实施例三提供一种功率余量报告上报的方法, 多个 CC一 起发送时 trigger UE PHR上报。 The third embodiment of the present invention provides a method for reporting a power headroom report. When multiple CCs are sent together, the trigger UE PHR reports.
假定 UE同时工作在两个上行 CC, 这两个上行 CC同属于一个 PA。 当两个 CC一起发送时 trigger了 CC的 PHR, 同时也 trigger UE 的 PHR发送。这时由于两个上行一起发送的 multiple— CC—MPR为 3db (其他类型 MPR或 A— MPR忽略)。 UE的最大功率等级为 23dbm, 第一个 CC上 PUSCH的发送功率为 10 dbm。第二个 CC上的 PUSCH 发送功率为 7 dbm。 这时如果每个 CC的 PHR计算都考虑由于两个 CC一起发送的 MPR时 CC1上的 PHR为 PHR=23 -10-3 = 10 db 。 CC 2的 PHR为 PHR=23-7-3 = 13 db。 It is assumed that the UE works on two uplink CCs at the same time, and the two uplink CCs belong to one PA. When the two CCs are sent together, the PHR of the CC is triggered, and the PHR of the UE is also transmitted. At this time, the multiple-CC_MPR sent by the two uplinks is 3db (other types of MPR or A-MPR are ignored). The maximum power level of the UE is 23 dbm, and the transmit power of the PUSCH on the first CC is 10 dbm. The PUSCH transmit power on the second CC is 7 dbm. At this time, if the PHR calculation of each CC considers the MPR transmitted by the two CCs, the PHR on CC1 is PHR=23 -10-3 = 10 db . The PHR of CC 2 is PHR=23-7-3 = 13 db.
在这种情况下 UE的 PHR— ue = 23-10-7- 3=3db。 这个 UE 的 PHR 采用新的 LCID去标识。 这样基站根据 UE的 PHR就可以了解 UE 仍然有相对 3db的功率剩余。 In this case, the UE's PHR_ue = 23-10-7- 3=3db. The PHR of this UE is identified by the new LCID. In this way, the base station can know that the UE still has a relative power of 3 db according to the PHR of the UE.
实施例四 Embodiment 4
本发明实施例四提供一种功率余量报告上报的方法, UE PHR采 用虚拟的格式。 The fourth embodiment of the present invention provides a method for reporting a power headroom report, and the UE PHR adopts a virtual format.
以当有基于 CC的 PHR上报时, trigger UE的 PHR上报为例, 假定 UE配置了两个上行 CC, 在某一时刻只有一个上行 CC发送, 这时基于 CC的 PHR trigger了,当基于 CC 的 PHR上艮了,同时 trigger UE的 PHR并上报 UE的 PHR。并且这时 UE上报的 UE PHR是采用 虚拟格式的。这时由于 CC2上并没有 PUSCH发送, 因此可以采用虚 拟的格式计算 CC2 上的 PUSCH 功率, 同时釆用虚拟的 multiple_CC_MPRo When a CC-based PHR is reported, the PHR report of the trigger UE is taken as an example. It is assumed that the UE is configured with two uplink CCs, and only one uplink CC is sent at a certain time. At this time, the CC-based PHR trigger is performed, when the CC-based The PHR is up, and the PHR of the UE is reported and reported to the PHR of the UE. And at this time, the UE PHR reported by the UE is in a virtual format. At this time, since there is no PUSCH transmission on CC2, the PUSCH power on CC2 can be calculated in a virtual format, and the virtual multiple_CC_MPRo is used.
假设 UE的最大功率等级为 23dbm,第一个 CC上真实的 PUSCH 的发送功率为 10 dbm。 第二个 CC上的 PUSCH并没有真实发送, 假 更正页 (细则第 91条)
设 PUSCH格式发送功率为 7 dbm。 这时虚拟的 multiple— CC—MPR为 3db (其他类型 MPR 或 A— MPR 忽略) 这时 CC1 上的 PHR 为 PHR=23-10 = 13db。 It is assumed that the maximum power level of the UE is 23 dbm, and the transmission power of the real PUSCH on the first CC is 10 dbm. The PUSCH on the second CC is not actually sent, false correction page (rule 91) Let the PUSCH format transmit power be 7 dbm. At this time, the virtual multiple-CC_MPR is 3db (other types of MPR or A-MPR are ignored). At this time, the PHR on CC1 is PHR=23-10 = 13db.
在这种情况下 UE的 PHR可以为 PHR— ue = 23-10-7-3=3db。基站 可以利用 UE的虚拟 UE PHR 为下次调度做参考,也就是当下次基站 调度两上行载波一起发送时可以了解在这时情况下 UE的功率会剩多 少。 In this case, the PHR of the UE can be PHR_ue = 23-10-7-3=3db. The base station can use the virtual UE PHR of the UE to make reference for the next scheduling, that is, when the next base station schedules two uplink carriers to be transmitted together, it can be known how much power the UE has left at this time.
实施例五 Embodiment 5
本发明实施例五提供一种功率余量报告上报的方法, UE同时上 报实际 UE PHR和虚拟的 UE PHR。 A fifth embodiment of the present invention provides a method for reporting a power headroom report, where the UE simultaneously reports an actual UE PHR and a virtual UE PHR.
以当有基于 CC的 PHR上报时, trigger UE的 PHR上报为例, 殳定 UE 配置了三个上行 CC,在某一时刻有两个上行 CC同时发送, 这时基于 CC的 PHR trigger了,当基于 CC的 PHR上报了,同时 trigger UE的 PHR并上报 UE的 PHR。 并且这时可以同时 trigger上报真实 的 UE PHR和虚拟的 UE PHR 。 这时由于 CC3上并没有 PUSCH发 送, 因此可以采用虚拟的格式计算 CC3上的 PUSCH功率。 同时采用 虚拟的 multiple— CC—MPR。 其中实际和虚拟 UE PHR 的计算方法同 实施例三和四的方法相同。 When a CC-based PHR is reported, the PHR report of the trigger UE is taken as an example. The UE is configured with three uplink CCs, and at the same time, two uplink CCs are simultaneously transmitted. At this time, based on the CC PHR trigger, when The PHR of the UE is reported, and the PHR of the UE is reported and reported to the PHR of the UE. At this time, the real UE PHR and the virtual UE PHR can be reported at the same time. At this time, since there is no PUSCH transmission on CC3, the PUSCH power on CC3 can be calculated in a virtual format. At the same time, virtual multiple-CC-MPR is adopted. The calculation methods of the actual and virtual UE PHR are the same as those of the third and fourth embodiments.
实施例六 Embodiment 6
本发明实施例六提供一种功率余量报告上报的方法, 当 UE发生 了 power scaling时 trigger UE 的 PHR。 当 UE 向上发送时, 发现系 统配置的资源所需的发送功率超过了 UE 的最大发送功率, 则这时 UE需要按照可以发送的最大功率发送, 因此发生了 power scaling, 这时 trigger UE 的 PHR, 并且进行上才艮。 A sixth embodiment of the present invention provides a method for reporting a power headroom report. When a power scaling occurs in a UE, the PHR of the UE is triggered. When the UE sends up, it finds that the required power of the system-configured resource exceeds the maximum transmit power of the UE. Then, the UE needs to transmit according to the maximum power that can be sent. Therefore, power scaling occurs. At this time, the PHR of the trigger UE is And proceed to the top.
实施例七 Example 7
本发明实施例七提供一种用户终端, 如图 5所示, 包括: 获取单元 11 , 用于获取用户终端工作在多个载波时产生的最大 功率下降值 MPR; A seventh embodiment of the present invention provides a user terminal, as shown in FIG. 5, comprising: an obtaining unit 11 , configured to acquire a maximum power drop value MPR generated when a user terminal works on multiple carriers;
计算单元 12, 用于根据配置的用户终端的功率余量报告 PHR计
算公式及所述 MPR计算基于用户终端的 PHR; The calculating unit 12 is configured to report the PHR meter according to the configured power headroom of the user terminal Calculating the formula and the MPR calculation based on the PHR of the user terminal;
上报单元 13 ,用于向基站上报计算得到的所述用户终端的 PHR。 所述 PHR计算公式为: The reporting unit 13 is configured to report the calculated PHR of the user terminal to the base station. The PHR calculation formula is:
PHR ue = Pcmax - Ppuschl - Ppusch2一 .…一 Ppuschn - Ppucch - multiple— CC—MPR; PHR ue = Pcmax - Ppuschl - Ppusch2 a .... a Ppuschn - Ppucch - multiple - CC - MPR;
其中, Pcmax为所述用户终端的最大发射功率, Ppuschn为 CCn 上 PUSCH 功率, Ppucch 为主载波上 PUCCH 的发送功率, multiple— CC—MPR为多个 CC一起发送而引起的 MPR。 Pcmax is the maximum transmit power of the user terminal, Ppuschn is the PUSCH power on the CCn, Ppucch is the transmit power of the PUCCH on the primary carrier, and the multiple-CC-MPR is the MPR caused by the multiple CCs being sent together.
所述 PHR计算公式为: The PHR calculation formula is:
PHR ue = Pcmax - Ppuschl - Ppusch2 - .... - Ppuschn - Ppucch; 其中, Pcmax为所述用户终端的最大发射功率与多个 CC一起发 送而引起的 MPR的差, Ppuschn为成员载波 CCn上 PUSCH功率, Ppucch为主载波上 PUCCH的发送功率。 PHR ue = Pcmax - Ppuschl - Ppusch2 - .... - Ppuschn - Ppucch; where Pcmax is the difference between the maximum transmit power of the user terminal transmitted with multiple CCs, and Ppuschn is the PUSCH on the component carrier CCn Power, Ppucch The transmit power of the PUCCH on the primary carrier.
所述用户终端在 CCn上发送或者不发送 PUSCH, 所述 Ppuschn 为所述用户终端在 CCn上发送 PUSCH时的真实功率或者所述用户终 端不在 CCn上发送 PUSCH时的虚拟功率。 The user terminal sends or does not transmit a PUSCH on the CCn, where the Ppuschn is the real power when the user terminal transmits the PUSCH on the CCn or the virtual power when the user terminal does not send the PUSCH on the CCn.
所述用户终端的 PHR的上 >¾触发条件为以下一种或多种: 上行新数据需要发送、 且当前所述用户终端的路径丟失 Pathloss 与上次 PHR 发送时刻的 Pathloss 的差值高于设定的门限、 且 prohibitPHR-timer超时; The upper >3⁄4 triggering condition of the PHR of the user terminal is one or more of the following: uplink new data needs to be sent, and the difference between the path loss of the current user terminal and the Pathloss of the last PHR sending time is higher than the setting The threshold is fixed, and the prohibitPHR-timer times out;
periodicPHR-timer超时; periodicPHR-timer timeout;
PHR的参数进行重配; The parameters of the PHR are reconfigured;
多个成员载波一起发送; Multiple member carriers are sent together;
多个成员载波一起发送时的 MPR超过一定门限; The MPR when multiple component carriers are sent together exceeds a certain threshold;
新增成员载波配置但没有对 PHR参数重配; Added component carrier configuration but did not reconfigure PHR parameters;
所述用户终端发生 power scaling; The user terminal generates power scaling;
有基于成员载波的 PHR上报; There is a PHR report based on the component carrier;
接收到基站发送的上报命令。 Received a report command sent by the base station.
该用户终端还包括:
成员载波 PHR处理单元 14, 用于计算并上才艮基于成员载波的 PHR。 所述用户终端的 PHR 的上报触发条件为有基于成员载波的 PHR上报。 The user terminal further includes: The component carrier PHR processing unit 14 is configured to calculate the PHR based on the component carrier. The reporting trigger condition of the PHR of the user terminal is that the PHR is reported based on the component carrier.
实施例八 Example eight
本发明实施例八提供一种基站, 如图 6所示, 包括: The eighth embodiment of the present invention provides a base station, as shown in FIG. 6, including:
接收单元 21 , 用于接收上报的基于用户终端的 PHR; The receiving unit 21 is configured to receive the reported PHR based on the user terminal;
处理单元 22, 用于根据所述基于用户终端的 PHR获知所述用户 终端的功率余量。 The processing unit 22 is configured to learn, according to the PHR based on the user terminal, a power headroom of the user terminal.
还包括: 发送单元 23 , 用于向所述用户终端发送信令, 触发所 述用户终端上报所述 PHR。 The method further includes: a sending unit 23, configured to send signaling to the user terminal, and trigger the user terminal to report the PHR.
本发明实施例中,用户终端工作在多个载波时计算并向基站上才艮 基于用户终端的 PHR, 使得基站能够根据接收到的基于用户终端的 PHR准确获知用户终端的功率余量。 In the embodiment of the present invention, when the user terminal works on multiple carriers, it calculates and performs PHR based on the user terminal on the base station, so that the base station can accurately know the power headroom of the user terminal according to the received PHR based on the user terminal.
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解 到本发明可借助软件加必需的通用硬件平台的方式来实现, 当然也可 以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解, 本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以 软件产品的形式体现出来, 该计算机软件产品存储在一个存储介质 中, 包括若干指令用以使得一台计算机设备(可以是个人计算机, 服 务器, 或者网络设备等)执行本发明各个实施例所述的方法。 Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is a better implementation. the way. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for making a A computer device (which may be a personal computer, server, or network device, etc.) performs the methods described in various embodiments of the present invention.
本领域技术人员可以理解附图只是一个优选实施例的示意图,附 图中的模块或流程并不一定是实施本发明所必须的。 A person skilled in the art can understand that the drawings are only a schematic diagram of a preferred embodiment, and the modules or processes in the drawings are not necessarily required to implement the invention.
本领域技术人员可以理解实施例中的装置中的模块可以按照实 施例描述进行分布于实施例的装置中,也可以进行相应变化位于不同 于本实施例的一个或多个装置中。上述实施例的模块可以合并为一个 模块, 也可以进一步拆分成多个子模块。 Those skilled in the art can understand that the modules in the apparatus in the embodiments may be distributed in the apparatus of the embodiment according to the description of the embodiments, or may be correspondingly changed in one or more apparatuses different from the embodiment. The modules of the above embodiments may be combined into one module, or may be further split into a plurality of sub-modules.
上述本发明实施例序号仅仅为了描述, 不代表实施例的优劣。 以上公开的仅为本发明的几个具体实施例, 但是, 本发明并非局 限于此,任何本领域的技术人员能思之的变化都应落入本发明的保护
The serial numbers of the embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments. The above disclosure is only a few specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be considered by those skilled in the art should fall within the protection of the present invention.
Claims
1、 一种功率余量报告上报的方法, 其特征在于, 包括: 获取用户终端工作在多个载波时产生的最大功率下降值 MPR; 根据用户终端的功率余量报告 PHR计算公式及所述 MPR计算基 于用户终端的 PHR; A method for reporting a power headroom report, comprising: acquiring a maximum power drop value MPR generated when a user terminal operates on multiple carriers; and reporting a PHR calculation formula and the MPR according to a power headroom of the user terminal Calculating a PHR based on the user terminal;
向基站上报计算得到的所述用户终端的 PHR。 The calculated PHR of the user terminal is reported to the base station.
2、 如权利要求 1所述的方法, 其特征在于, 所述 PHR计算公式 为: 2. The method according to claim 1, wherein the PHR calculation formula is:
PHR ue = Pcmax - Ppuschl - Ppusch2一 .…一 Ppuschn - Ppucch - multiple— CC—MPR; PHR ue = Pcmax - Ppuschl - Ppusch2 a .... a Ppuschn - Ppucch - multiple - CC - MPR;
其中, Pcmax为所述用户终端的最大发射功率, Ppuschn为第 n 个成员载波 CCn上物理上行共享信道 PUSCH功率, Ppucch为主载 波上物理上行控制信道 PUCCH的发送功率, multiple— CC—MPR为用 户终端在多个 CC同时发送而引起的 MPR。 Pcmax is the maximum transmit power of the user terminal, Ppuschn is the physical uplink shared channel PUSCH power on the nth component carrier CCn, and Ppucch is the transmit power of the physical uplink control channel PUCCH on the primary carrier, and the multiple-CC-MPR is the user. The MPR caused by the terminal transmitting simultaneously on multiple CCs.
3、 如权利要求 1所述的方法, 其特征在于, 所述 PHR计算公式 为: 3. The method according to claim 1, wherein the PHR calculation formula is:
PHR ue = Pcmax - Ppuschl - Ppusch2 - .... - Ppuschn - Ppucch; 其中, Pcmax为所述用户终端的最大发射功率与用户终端在多个 CC同时发送而引起的 MPR两者之差, Ppuschn为成员载波 CCn上 PUSCH功率, Ppucch为主载波上 PUCCH的发送功率。 PHR ue = Pcmax - Ppuschl - Ppusch2 - .... - Ppuschn - Ppucch; where Pcmax is the difference between the maximum transmit power of the user terminal and the MPR caused by the simultaneous transmission of the user terminal on multiple CCs, Ppuschn is The PUSCH power on the component carrier CCn, and the Ppucch transmission power of the PUCCH on the primary carrier.
4、 如权利要求 2或 3所述的方法, 其特征在于, 所述用户终端 在 CCn上发送 PUSCH,所述 Ppuschn为所述用户终端在 CCn上发送 PUSCH时的真实功率;或者,所述用户终端在 CCn上不发送 PUSCH, 所述 Ppuschn为所述用户终端不在 CCn上发送 PUSCH时的 支定的虚 拟功率。 The method according to claim 2 or 3, wherein the user terminal transmits a PUSCH on the CCn, and the Ppuschn is a real power when the user terminal transmits a PUSCH on the CCn; or the user The terminal does not transmit a PUSCH on the CCn, and the Ppuschn is a virtual power that is reserved when the user terminal does not transmit the PUSCH on the CCn.
5、 如权利要求 4所述方法, 其特征在于, 所述 PUSCH虚拟功 率是基于虚拟的 PUSCH格式得到的; 或者是基于所在 CC最后一次 调度的 PUSCH格式得到的。 The method according to claim 4, wherein the PUSCH virtual power is obtained based on a virtual PUSCH format; or based on a PUSCH format that is last scheduled by a CC.
6、 如权利要求 2或 3所述的方法, 其特征在于, 所述用户终端 在主载波上发送 PUCCH,所述 Ppucch为所述用户终端在主载波上发 送 PUCCH时的真实功率; 或者, 所述用户终端未发送 PUCCH, 所 述 Ppucch为所述用户终端未发送 PUCH时的假定的虚拟功率。 The method according to claim 2 or 3, wherein the user terminal transmits a PUCCH on a primary carrier, and the Ppucch is a real power when the user terminal transmits a PUCCH on a primary carrier; or The user terminal does not transmit a PUCCH, and the Ppucch is assumed virtual power when the user terminal does not transmit the PUCH.
7、 如权利要求 6所述方法, 其特征在于, 所述 PUCCH虚拟功 率是基于虚拟的 PUCCH格式得到的; 或者是基于所在 CC最后一次 调度的 PUCCH格式得到的。 The method according to claim 6, wherein the PUCCH virtual power is obtained based on a virtual PUCCH format; or based on a PUCCH format of a last scheduled CC.
8、 如权利要求 1-3任一项所述的方法, 其特征在于, 所述用户 终端的 PHR的上 >¾触发条件为以下一种或多种: The method according to any one of claims 1-3, wherein the triggering condition of the PHR of the user terminal is one or more of the following:
上行新数据需要发送、 且当前所述用户终端的路径丟失 Pathloss 与上次 PHR 发送时刻的 Pathloss 的差值高于设定的门限、 且 prohibitPHR-timer超时; The uplink new data needs to be sent, and the path of the current user terminal is lost. The difference between the Pathloss and the Pathloss of the last PHR transmission time is higher than the set threshold, and the prohibitPHR-timer times out;
periodicPHR-timer超时; periodicPHR-timer timeout;
PHR的参数进行重配; The parameters of the PHR are reconfigured;
多个成员载波一起发送; Multiple member carriers are sent together;
多个成员载波一起发送时的 MPR超过一定门限; The MPR when multiple component carriers are sent together exceeds a certain threshold;
新增成员载波配置但没有对 PHR参数重配; Added component carrier configuration but did not reconfigure PHR parameters;
所述用户终端发生功率缩放; The user terminal generates power scaling;
有基于成员载波的 PHR上报; There is a PHR report based on the component carrier;
接收到基站发送的上报命令。 Received a report command sent by the base station.
9、 如权利要求 1-3任一项所述的方法, 其特征在于, 还包括: 所述用户终端计算并上 ^艮基于成员载波的 PHR。 The method according to any one of claims 1-3, further comprising: the user terminal calculating and uplinking a PHR based on a component carrier.
10、 一种用户终端, 其特征在于, 包括: 10. A user terminal, comprising:
获取单元,用于获取用户终端工作在多个载波时产生的最大功率 下降值 MPR; An obtaining unit, configured to obtain a maximum power drop value MPR generated when the user terminal works on multiple carriers;
计算单元, 用于根据配置的用户终端的功率余量报告 PHR计算 公式及所述 MPR计算基于用户终端的 PHR; a calculating unit, configured to report a PHR calculation formula according to the configured power headroom of the user terminal, and the MPR calculation is based on a PHR of the user terminal;
上报单元, 用于向基站上报计算得到的所述用户终端的 PHR。 The reporting unit is configured to report the calculated PHR of the user terminal to the base station.
11、 如权利要求 10所述的用户终端, 其特征在于, 所述 PHR计 算公式为: The user terminal according to claim 10, wherein the PHR meter The formula is:
PHR ue = Pcmax - Ppuschl - Ppusch2一 .…一 Ppuschn - Ppucch - multiple— CC—MPR; PHR ue = Pcmax - Ppuschl - Ppusch2 a .... a Ppuschn - Ppucch - multiple - CC - MPR;
其中, Pcmax为所述用户终端的最大发射功率, Ppuschn为第 n 个成员载波 CCn上 PUSCH功率, Ppucch为主载波上 PUCCH的发送 功率, multiple— CC—MPR为多个 CC一起发送而引起的 MPR。 Where Pcmax is the maximum transmit power of the user terminal, Ppuschn is the PUSCH power on the nth component carrier CCn, Ppucch is the transmit power of the PUCCH on the primary carrier, and the multiple-CC-MPR is sent together by multiple CCs. .
12、 如权利要求 10所述的用户终端, 其特征在于, 所述 PHR计 算公式为: The user terminal according to claim 10, wherein the PHR calculation formula is:
PHR ue = Pcmax - Ppuschl - Ppusch2 - .... - Ppuschn - Ppucch; 其中, Pcmax为所述用户终端的最大发射功率与多个 CC一起发 送而引起的 MPR的差, Ppuschn为成员载波 CCn上 PUSCH功率, Ppucch为主载波上 PUCCH的发送功率。 PHR ue = Pcmax - Ppuschl - Ppusch2 - .... - Ppuschn - Ppucch; where Pcmax is the difference between the maximum transmit power of the user terminal transmitted with multiple CCs, and Ppuschn is the PUSCH on the component carrier CCn Power, Ppucch The transmit power of the PUCCH on the primary carrier.
13、 如权利要求 11或 12所述的用户终端, 其特征在于, 所述用 户终端在 CCn上发送 PUSCH, 所述 Ppuschn为所述用户终端在 CCn 上发送 PUSCH时的真实功率; 或者, 所述用户终端在 CCn上不发送 PUSCH,所述 Ppuschn为所述用户终端不在 CCn上发送 PUSCH时假 定的的虚拟功率。 The user terminal according to claim 11 or 12, wherein the user terminal transmits a PUSCH on the CCn, and the Ppuschn is a real power when the user terminal transmits a PUSCH on the CCn; or The user terminal does not transmit a PUSCH on the CCn, and the Ppuschn is a virtual power assumed when the user terminal does not transmit the PUSCH on the CCn.
14、 如权利要求 13所述方法, 其特征在于, 所述 PUSCH虚拟 功率分别是基于虚拟的 PUSCH格式得到的; 或者是基于所在 CC最 后一次调度的 PUSCH格式得到的。 The method according to claim 13, wherein the PUSCH virtual power is obtained based on a virtual PUSCH format, respectively, or based on a PUSCH format of a last scheduled CC of the CC.
15、 如权利要求 11或 12所述的方法, 其特征在于, 所述用户终 端在主载波上发送 PUCCH,所述 Ppucch为所述用户终端在主载波上 发送 PUCCH时的真实功率; 或者, 所述用户终端不发送 PUCCH, 所述 Ppucch为所述用户终端不发送 PUCH时的 支定的虚拟功率。 The method according to claim 11 or 12, wherein the user terminal transmits a PUCCH on a primary carrier, where the Ppucch is a real power when the user terminal transmits a PUCCH on a primary carrier; or The user terminal does not transmit a PUCCH, and the Ppucch is a virtual power that is reserved when the user terminal does not transmit the PUCH.
16、 如权利要求 15所述方法, 其特征在于, 所述 PUCCH虚拟 功率分别是基于虚拟的 PUCCH格式得到的; 或者是基于所在 CC最 后一次调度的 PUCCH格式得到的。 The method according to claim 15, wherein the PUCCH virtual power is obtained based on a virtual PUCCH format, respectively, or based on a PUCCH format of a last scheduled CC of the CC.
17、 如权利要求 10-13任一项所述的用户终端, 其特征在于, 所 述用户终端的 PHR的上 >¾触发条件为以下一种或多种: 上行新数据需要发送、 且当前所述用户终端的路径丟失 Pathloss 与上次 PHR 发送时刻的 Pathloss 的差值高于设定的门限、 且 prohibitPHR-timer超时; The user terminal according to any one of claims 10 to 13, characterized in that: the upper >3⁄4 triggering condition of the PHR of the user terminal is one or more of the following: The uplink new data needs to be sent, and the difference between the path loss of the current user terminal Pathloss and the Pathloss of the last PHR transmission time is higher than the set threshold, and the prohibitPHR-timer times out;
periodicPHR-timer超时; periodicPHR-timer timeout;
PHR 的参数进行重配; The parameters of the PHR are reconfigured;
多个成员载波一起发送; Multiple member carriers are sent together;
多个成员载波一起发送时的 MPR超过一定门限; The MPR when multiple component carriers are sent together exceeds a certain threshold;
新增成员载波配置但没有对 PHR参数重配; Added component carrier configuration but did not reconfigure PHR parameters;
所述用户终端发生功率缩放; The user terminal generates power scaling;
有基于成员载波的 PHR上报; There is a PHR report based on the component carrier;
接收到基站发送的上报命令。 Received a report command sent by the base station.
18、 如权利要求 10-13任一项所述的用户终端, 其特征在于, 还 包括: The user terminal according to any one of claims 10 to 13, further comprising:
成员载波 PHR处理单元,用于计算并上报基于成员载波的 PHR。 A component carrier PHR processing unit is used to calculate and report a PHR based on a component carrier.
19、 一种功率余量报告上报的方法, 其特征在于, 包括: 接收上报的基于用户终端的 PHR; A method for reporting a power headroom report, comprising: receiving a PHR based on a user terminal that is reported;
根据所述基于用户终端的 PHR获知所述用户终端的功率余量。 The power headroom of the user terminal is learned according to the PHR based on the user terminal.
20、 如权利要求 19所述的方法, 其特征在于, 还包括: 向所述用户终端发送信令, 触发所述用户终端上报所述 PHR。The method of claim 19, further comprising: sending signaling to the user terminal, triggering the user terminal to report the PHR.
21、 一种基站, 其特征在于, 包括: A base station, comprising:
接收单元, 用于接收上报的基于用户终端的 PHR; a receiving unit, configured to receive the reported PHR based on the user terminal;
处理单元, 用于根据所述基于用户终端的 PHR获知所述用户终 端的功率余量。 And a processing unit, configured to learn, according to the PHR based on the user terminal, a power headroom of the user terminal.
22、 如权利要求 21所述的基站, 其特征在于, 还包括: 发送单元, 用于向所述用户终端发送信令, 触发所述用户终端上 报所述 PHR。 The base station according to claim 21, further comprising: a sending unit, configured to send signaling to the user terminal, to trigger the user terminal to report the PHR.
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WO2015113232A1 (en) * | 2014-01-28 | 2015-08-06 | 华为技术有限公司 | Method and device for reporting power headroom and user equipment |
JP5890879B1 (en) * | 2014-09-25 | 2016-03-22 | 株式会社Nttドコモ | User apparatus, base station, uplink transmission power report method, and parameter notification method |
CN115720347A (en) * | 2017-02-03 | 2023-02-28 | 瑞典爱立信有限公司 | Method for determining report configuration based on UE power class |
CN110381527B (en) * | 2018-04-04 | 2022-07-15 | 中兴通讯股份有限公司 | Power headroom reporting method, TPC command sending method and device, base station and terminal |
CN113141658B (en) * | 2020-01-19 | 2022-08-23 | ***通信集团安徽有限公司 | Carrier configuration method and device based on 5G NSA voice call |
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