WO2011160282A1 - 一种载波聚合中功率余量报告的计算方法及系统 - Google Patents

一种载波聚合中功率余量报告的计算方法及系统 Download PDF

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Publication number
WO2011160282A1
WO2011160282A1 PCT/CN2010/074168 CN2010074168W WO2011160282A1 WO 2011160282 A1 WO2011160282 A1 WO 2011160282A1 CN 2010074168 W CN2010074168 W CN 2010074168W WO 2011160282 A1 WO2011160282 A1 WO 2011160282A1
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Prior art keywords
phr
component carriers
component carrier
subframe
uplink
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PCT/CN2010/074168
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English (en)
French (fr)
Inventor
杜忠达
陈中明
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中兴通讯股份有限公司
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Priority to PCT/CN2010/074168 priority Critical patent/WO2011160282A1/zh
Publication of WO2011160282A1 publication Critical patent/WO2011160282A1/zh

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Classifications

    • 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 current transmit power of a User Equipment (UE) cannot exceed the maximum transmit power of the UE.
  • the UE notifies the enhanced base station (eNB) through the PHR process, the difference between the maximum transmit power of the UE and the transmit power of the current uplink shared channel (UL-SCH, Uplink Shared Channel), and the base station performs uplink scheduling and link adaptation according to the difference. Further determining whether to perform power control to meet the requirement that the current transmit power of the UE cannot exceed the maximum transmit power of the UE.
  • the PHR process is performed by the UE reporting the Media Access Control (MAC) Control Element (CE) of the PHR to the network side.
  • the power control includes: controlling to reduce the transmit power or increasing the transmit power, and controlling the amount of power that needs to be adjusted.
  • the base station controls the process of reporting the PHR by the UE through three parameters: eriodicPHR-Timer, prohibitPHR-Timer, and dl-PathlossChange.
  • the base station informs the UE of these three parameters through RRC signaling. The following three parameters are explained separately.
  • dl-PathlossChange is the threshold of the downlink (DL) path loss (PL, pathloss) change set on the network side.
  • DL downlink
  • PL pathloss
  • the periodicPHR-Timer is the PHR periodic reporting timer, which is started when the first uplink grant is received after the MAC reset. After the periodicPHR-Timer times out, the PHR is triggered, and the PHR is restarted after being reported. This periodic triggering mechanism ensures that, in the case of less DL PL changes, the base The station is still able to understand the changes in the PH.
  • the prohibit PHR-Timer is forbidden to report the PHR timer. During the operation of the prohibit PHR-Timer, the PHR is prohibited from being triggered. After the UE reports the PHR, the prohibitPHR-Timer is started to prevent the terminal from triggering the PHR frequently in a relatively short period of time.
  • the UE After the event triggers the PHR, the UE receives the uplink grant, and prepares to obtain the power headroom (PH) value of the current PHR subframe through the physical layer when the PUSCH is sent in the corresponding PHR subframe, and generates a sum based on the PH value.
  • the MAC CE is reported, that is, the PH value is carried in the MAC CE and reported to the base station.
  • PHR is a process for the relationship between PHR and PH value, which can be called the process of reporting PHR to the base station, but the specific content reported is the PH value, that is, the calculation of PHR is actually equivalent. Calculate the pH.
  • PH - ⁇ CMAX _ ⁇ 1 log 10 ( ⁇ USCH (0) + - ⁇ O PUSCH (j) + a(j) - PL + A TF (i) + f(i) ⁇ ( 1 )
  • the dimension of PH is decibel (dB)
  • P CMAX is the maximum allowable reporting power determined by the UE power level, which is defined in 3GPP protocol TS36.101.
  • M PUSCH (0 is the resource block in subframe i
  • P. PUSCH /) is a cell-specific ( GC specific ) normalized part. - N . MINAL PUSCH /) and UE-specific ( UE specific ) part.
  • the UE can communicate with the base station through multiple component carriers in a connected state, and the multiple component carriers include one primary component carrier (PCC, Primary Component Carrier), and 0-4 secondary component carriers (SCC, Secondary Component). Carrier ) 0
  • PCC Primary Component Carrier
  • SCC Secondary Component
  • Carrier 0
  • PHR Physical uplink control channel
  • the second PHR should be reported for the primary serving cell (Pcell), because the physical uplink shared channel (PUSCH) and the PUCCH are simultaneously reported on the Pcell. If only the PUSCH is reported, for example, only the first PHR is reported on the secondary serving cell (Scell).
  • Pcell primary serving cell
  • PUSCH physical uplink shared channel
  • Scell secondary serving cell
  • a method for calculating a power headroom in a carrier aggregation comprising:
  • a power headroom report (PHR) of multiple component carriers in carrier aggregation
  • a component carrier of a PHR for transmitting multiple component carriers, calculating a PH value based on a subframe in which a PHR is transmitted; for other component carriers, based on and transmitting
  • the PH value is calculated for one uplink transmission subframe on the other component carrier closest to the subframe of the PHR.
  • PUSCH physical uplink shared channel
  • M pusch O and A tf (values in O)
  • the subframe in which the other component carrier transmits the last uplink transmission before transmitting the PHR subframe or before transmitting the PHR subframe refers to: if the transmitting PHR subframe has an uplink transmission, the calculation is performed based on the transmitting PHR subframe, otherwise, the uplink transmission is further traced forward. Subframes are calculated.
  • the method further includes: the user equipment (UE) receives the first uplink of all component carriers. Reporting the PHR on the authorization, and reporting the PHR of the multiple component carriers on the component carrier that the UE receives the first uplink grant; if there is an uplink grant at the same time, randomly selecting;
  • the component carrier of the PHR for transmitting the multiple component carriers is: the UE receives the first uplink authorized component carrier; the component carrier of the PHR used for transmitting the multiple component carriers is one, or at least two One.
  • the scene in which the plurality of component carriers trigger the PHR and has not reported the PHR includes: the periodic reporting timer expires, or the path loss (PL) exceeds a specified range.
  • Each of the plurality of component carriers is a configured uplink component carrier; or each of the plurality of component carriers is a configured and activated uplink component carrier.
  • the system further includes: a reporting unit, configured to report, when the PHR is triggered by the multiple component carriers, that the PHR is not reported, the UE reports the first uplink grant of all the component carriers. And the PHR, and reporting, on the component carrier that the UE receives the first uplink grant, the PHR of the multiple component carriers; if there is an uplink grant at the same time, randomly selecting;
  • the component carrier of the PHR for transmitting the multiple component carriers is: the UE receives the first uplink authorized component carrier; the component carrier of the PHR used for transmitting the multiple component carriers is one, or at least two One.
  • the scene includes: The periodic report timer expires, or the PL is out of the specified range.
  • the upper unit is further configured to trigger the PHR by using the multiple component carriers, and the simultaneous reporting is implemented by the UE receiving the first uplink authorized component carrier.
  • Each of the plurality of component carriers is a configured uplink component carrier; or each of the plurality of component carriers is a configured and activated uplink component carrier.
  • the PH value is calculated based on the subframe for transmitting the PHR for the component carrier of the PHR for transmitting the multiple component carriers; and the subframe based on the PHR is transmitted for other component carriers.
  • the PH value of one uplink transmission on the closest other component carrier is calculated.
  • FIG. 1 is a schematic diagram of triggering and reporting of a PHR according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of triggering and reporting of a PHR according to Embodiment 2 of the present invention
  • FIG. 3 is a schematic diagram of triggering and reporting of PHR according to Embodiment 3 of the present invention. detailed description
  • the basic idea of the present invention is: when reporting the PHR of multiple component carriers in the carrier aggregation, the PH value is calculated based on the subframe for transmitting the PHR for the component carrier of the PHR used for transmitting the multiple component carriers; The PH value is calculated based on a subframe of one uplink transmission on the other component carrier closest to the subframe in which the PHR is transmitted.
  • the reporting and sending are different in this paper.
  • the difference is:
  • the so-called reporting can be regarded as a MAC layer process, that is, the PHR needs to be sent to the base station;
  • the so-called transmission refers to the action of the physical layer, that is, on which component carrier is executed. The action sent.
  • the UE reports the PHR when receiving the first uplink grant of all the component carriers, and And reporting, by the UE, the PHR of the multiple component carriers on the component carrier that receives the first uplink grant; if multiple component carriers have uplink grants at the same time, randomly selecting from the components.
  • the multiple component carriers and the all component carriers are deliberately distinguished. It is described as follows: When some component carriers trigger PHR and have not reported PHR, and all component carriers trigger PHR and have not reported PHR yet. The method of the present invention is also applicable.
  • the component carrier that reports the PHR is not necessarily included in the component carrier that has triggered the PHR, and is not described.
  • the method for calculating the PH of the component carrier of the PHR is: calculating the PH value based on the time when the component carrier reports the PHR subframe; the calculation method of the other component carrier PH: based on the other component carriers in the upper 4 ⁇ PHR
  • the PH value is calculated at the time of the last uplink transmission before the time of the subframe.
  • the component carrier refers to a component carrier that reports the PHR, and may also be referred to as a component carrier of a PHR for transmitting a plurality of component carriers.
  • the component carrier is specifically: the UE receives the first uplink grant on the component carrier; at this time, the other component carrier refers to: a component carrier other than the component carrier of the PHR used for transmitting the multiple component carriers, where The other component carriers are specifically: component carriers other than the component carrier that the UE receives the first uplink grant.
  • the component carrier may be one or at least two.
  • Each of the plurality of component carriers is a configured uplink component carrier, or For the configured and activated uplink component carrier.
  • Equation (1) can be used to calculate the PH value, but the present invention uses the formula (1) to calculate the PH value, M pusch (O and A tf (the value of i in O and the prior art application)
  • the value is: the time at which the component carrier reports the PHR subframe; when the PHR subframe is reported based on the other component carriers
  • the value is: the time of the last uplink transmission before the time when the PHR subframe is reported.
  • the calculation method of ⁇ is different from the prior art application, when based on the component.
  • PHR's target configuration such as periodicPHR-Timer, prohibitPHR-Timer, dl-PathlossChange
  • each component carrier has a set of configurations and is managed separately, or all component carriers share a set of configurations and are managed uniformly.
  • the base station can connect through RRC.
  • the establishment message notifies the UE, or is modified by the RRC reconfiguration command, or the UE is notified by the handover command, or the UE is notified by the RRC reestablishment command.
  • the MAC When the UE receives the configuration of these parameters, or changes it, the MAC The layer will be reset.
  • the terminal then triggers and reports the PHR upon receipt of the first upstream grant.
  • Embodiment 1 Multiple timers are separately managed, as in this embodiment, the UE aggregates two
  • the CC is the two timers that manage two ccs.
  • the UE is configured with CC1 and CC2 in the uplink, where CC1 is Pcell and CC2 is Scell.
  • the UE receives the uplink grant of CC1, and reports CC1 on CC1.
  • the PHR of CC1 calculates the PH value based on the transmission time interval (TTI) of CC1 at time T3, that is, the TTI at time T3 in PH (i) (PH (T3, the same below), m PUS CH (' For the PUSCH resource allocation bandwidth indicated by the number of resource blocks at time T3, A TF ( Z ') is the MCS adjustment offset of the TTI at time T3, and the offset is adjusted for the PUSCH power control of the TTI at time T3.
  • TTI transmission time interval
  • m PUS CH '
  • a TF ( Z ') is the MCS adjustment offset of the TTI at time T3, and the offset is adjusted for the PUSCH power control of the TTI at time T3.
  • CC2's PHR calculates PH value based on CC2's last uplink transmission before T3 (such as time T2), ie PH ( T2 , T3 ) (the same below), m PUSCH ( 0 is at time T2)
  • TTI is the PUSCH resource allocation bandwidth represented by the number of resource blocks
  • ⁇ ⁇ ( ⁇ ') is the MCS adjustment offset of ⁇ at time ,2, and adjusts the offset for the current PUSCH power control of the UE.
  • the periodicPHR-Timer on CC1 times out, triggers the PHR of CC1, and the periodicPHR-Timer on CC2 times out, triggering the PHR of CC2.
  • the UE receives the uplink grant of CC2, and reports the PHR of CC1 and CC2 on CC2.
  • the PHR of CC2 calculates the PH value, PH (T7) based on the ⁇ of CC2 at time T7. Since CC1 does not report PHR, The PHR of CCl is calculated based on CCl's last upstream transmission (such as time ⁇ 5) before T7, ie PH ( ⁇ 5 , ⁇ 7 ). After reporting the PHR, the periodicPHR-Timer and rohibitPHR-Timer of CC1 and CC2 are restarted.
  • the UE detects that the PL change on CC2 exceeds the specified 3 db, triggers the PHR of CC2.
  • the UE receives the uplink grant of CC2, reports the PHR of CC2 on CC2, and the PHR of CC2 is based on the TTI of CC2 at time T10. Calculate the pH value, ie PH(T10). After reporting the PHR, CC2's periodicPHR-Timer and prohibitPHR-Timer are restarted.
  • the UE may also choose to report the PHR of CC1 and CC2.
  • the PHR calculation method of CC2 is unchanged.
  • the PHR of CC1 calculates the PH value based on CC1's last uplink transmission before T10 (such as time T8), that is, PH (T10, T8). ).
  • the UE receives the uplink grant of CC1 and CC2, reports the PHR of CC1 on CC1, and reports the PHR of CC2 on CC2.
  • the PHR of CC1 calculates the PH value based on the TTI of CC1 at time T13, that is, PH (T13).
  • the PHR of CC2 is based on the TTI of CC2 at time T13 to calculate the PH value, ie PH (T13).
  • the UE may also choose to report the PHR of CC1 and CC2 on CC1 (or CC2).
  • the PHR of CC1 calculates the PH value based on the TTI of CC1 at time T13, that is, PH (T13), since CC2 does not report PHR, but CC2 has
  • the uplink grant sends uplink data, so the PHR of CC2 calculates the PH value based on CC2 uplink transmission at time T13, that is, PH (T13).
  • Embodiment 2 A timer and a unified management of all component carriers.
  • the UE aggregates two CCs, that is, one timer manages two CCs.
  • the UE configures CC1 and CC2 in the uplink during the communication process, where CC1 is Pcell and CC2 is Scell.
  • the UE receives the uplink grant of CC1, and reports the PHR of CC1 and CC2 on CC1.
  • the PHR of CC1 calculates the PH value based on the TTI of CC1 at time T3. That is PH ( T3 ). Since CC2 does not report PHR, CC2's PHR calculates PH value based on CC2's last uplink transmission before T3 (such as time T1), that is, PH (Tl, T3). After the PHR is reported, the periodicPHR-Timer and rohibitPHR-Timer are restarted.
  • the periodicPHR-Timer times out, triggering the PHR of CC1 and CC2.
  • the UE receives the uplink grant of CC2, and reports the PHR of CC1 and CC2 on CC2.
  • the PHR of CC2 calculates the PH value based on the TTI of CC2 at time T6, that is, PH (T6). Since CC1 does not report PHR, CC1's PHR calculates PH value based on CC1's last uplink transmission before T6 (port T4), ie PH (T4, T6). After the PHR, the periodicPHR-Timer and rohibitPHR-Timer restart.
  • the UE detects that the PL change on CC2 exceeds the specified 3 db, triggers the PHR of CC2.
  • the UE receives the uplink grant of CC2, reports the PHR of CC2 on CC2, and the PHR of CC2 is based on the TTI of CC2 at time T9.
  • the periodicPHR-Timer and prohibitPHR-Timer restart.
  • the PHR of CC1 and CC2 can also be reported together.
  • the PHR of CC2 is calculated as above.
  • the PHR of CC1 is calculated based on CC1's last uplink transmission before T9 (such as time T7), that is, PH (T7, T9).
  • the periodicPHR-Timer times out, triggering the PHR of CC1 and CC2.
  • the UE receives the uplink grant of CC1 and CC2, reports the PHR of CC1 on CC1, and reports the PHR of CC2 on CC2.
  • the PHR of CC1 is based on the TTI of CC1 at time T11.
  • the PHR of CC2 calculates the PH value based on the TTI of CC2 at Ti l time, that is, PH (T11). After the PHR is reported, the periodicPHR-Timer and the prohibitPHR-Timer are restarted.
  • Embodiment 3 Different from the first embodiment, although it is separately managed, an additional timer is added for CC management, so as to achieve the purpose of transmission optimization.
  • the UE is configured with CC1 and CC2 uplink in the communication process, where CC1 is Pcell and CC2 is Scell.
  • the base station informs the UE that the CC of the PHR is not reported, and the time difference between the TTI of the PHR and the TTI of the last uplink transmitted before this time exceeds 15 ms (greater than or equal to), then the PH value of the CC Calculated based on the transmit power being zero.
  • the periodicPHR-Timer on CC1 times out, triggering the PHR of CC1.
  • the UE receives the uplink grant of CC1, and reports the PHR of CC1 and CC2 on CC1.
  • the PHR of CC1 calculates the PH value based on the TTI of CC1 at time T3. That is, PH ( T3 ) Since CC2 does not report PHR, the PHR of CC2 calculates the PH value based on CC2's last uplink transmission before T3 (such as time T1), that is, PH (Tl, T3).
  • T1 the periodicPHR-Timer and prohibitPHR-Timer of CC1 and CC2 are restarted.
  • the periodicPHR-Timer on CC1 times out, triggers the PHR of CC1, and the periodicPHR-Timer on CC2 times out, triggering the PHR of CC2.
  • the UE receives the uplink grant of CC2, and reports the PHR of CC1 and CC2 on CC2.
  • the PHR of CC2 calculates the PH value based on the TTI of CC2 at time T7, that is, PH (T7). Since CC1 does not report PHR, the PHR of CC1 calculates the PH value based on CC1's last uplink transmission before T7 (such as time T5), that is, PH (T5, T7). After reporting PHR, CC1 and CC2 The periodicPHR-Timer and rohibitPHR-Timer restart.
  • the UE detects that the PL change on CC2 exceeds the specified 3 db, triggers the PHR of CC2.
  • the UE receives the uplink grant of CC1, and reports the PHR of CC1 and CC2 on CC1.
  • the PHR of CC1 is based on CC1 at time T9.
  • the TTI calculates the PH value, that is, PH (T9, since CC2 does not report PHR, the PHR of CC2 calculates the PH value based on CC2's last uplink transmission before T9 (such as time T7), that is, ⁇ PR (T7, T9).
  • the UE sends the PHR of CC1 and CC2 on CC2, and the PHR of CC2 calculates the PH value based on the TTI of CC2 at time T9, that is, PH (T9), since CC1 does not send PHR, CC1
  • the PHR calculates the PH value based on CC1's last uplink transmission (such as time T5) before the T9 time, but the time difference between T5 and T9 exceeds the nodata-Timer, that is, 15 ms, so the PHR of CC 1 calculates the PH value based on the transmission power of 0.
  • the periodicPHR-Timer and prohibitPHR-Timer of CC1 and CC2 are restarted.
  • a computing system for PHR in carrier aggregation includes a computing unit; when the computing unit is configured to report the PHR of multiple component carriers in the carrier aggregation, the component carrier of the PHR used to transmit the multiple component carriers is based on the PHR
  • the subframe calculates the PH value; for other component carriers, the PH value is calculated based on an uplink transmitted subframe on the other component carrier closest to the subframe in which the PHR is transmitted.
  • the so-called “closest” means: if other component carriers have uplink transmission in the subframe in which the PHR is transmitted, the PH value is calculated based on the subframe in which the PHR is transmitted; if other component carriers If there is no uplink transmission in the subframe in which the PHR is transmitted, the PH value is calculated based on the subframe in which the other component carrier transmits the last uplink before the PHR subframe.
  • the system further includes: a reporting unit, configured to trigger on the multiple component carriers
  • a reporting unit configured to trigger on the multiple component carriers
  • the UE triggers and reports the PHR when receiving the first uplink grant of all the component carriers, and reports the component on the component carrier that the UE receives the first uplink grant.
  • the PHR of multiple component carriers if multiple component carriers have uplink grants at the same time, they are randomly selected.
  • the component carrier of the PHR for transmitting the multiple component carriers is: the UE receives the first uplink authorized component carrier; the component carrier of the PHR used for transmitting the multiple component carriers is one, or at least two One.
  • the scene in which the plurality of component carriers trigger the PHR and has not reported the PHR includes: the periodic reporting timer expires, or the PL is out of the specified range.
  • the upper unit is further configured to trigger the PHR by using the multiple component carriers, and the simultaneous reporting is implemented by the UE receiving the first uplink authorized component carrier.
  • each of the plurality of component carriers is a configured uplink component carrier; or each of the plurality of component carriers is a configured and activated uplink component carrier.

Description

一种载波聚合中功率余量报告的计算方法及系统 技术领域
本发明涉及数字移动通信技术领域, 尤其涉及一种载波聚合中功率余 量报告(PHR, Power Headroom Report ) 的计算方法及系统。 背景技术
长期演进(LTE ) 系统中, 用户设备 ( UE ) 当前的发射功率不能超过 UE最大发射功率。 UE通过 PHR过程通知增强型基站(eNB ), UE最大发 射功率与当前上行共享信道(UL-SCH, Uplink Shared Channel ) 的发射功 率的差别, 基站根据这个差别, 进行上行调度和链路适配, 进一步决定是 否进行功率控制,以满足 UE当前发射功率不能超过 UE最大发射功率的要 求。 PHR过程是通过 UE上报 PHR的媒体接入控制( MAC )控制元素( CE ) 给网络侧来完成的。 其中, 所述功率控制包括: 控制减小发射功率或增加 发射功率, 以及控制需要进行调整的功率大小。
基站通过 eriodicPHR-Timer , prohibitPHR-Timer ,和 dl-PathlossChange 这三个参数控制 UE上报 PHR的过程,基站通过 RRC信令将这三个参数通 知 UE。 以下对这三个参数分别阐述。
一、 dl-PathlossChange 为网络侧设置的下行链路 ( DL )路损 (PL, pathloss ) 变化阈值。 协议规定自从上次 PHR 上报以后, 并且 prohibitPHR-Timer超时以后, 当 DL PL的变化超过 dl-PathlossChange就触 发 PHR。 这是因为 DL PL变化最终会影响到上行的功率控制。
二、 periodicPHR-Timer为 PHR周期上报定时器, 在 MAC复位后收到 第一个上行授权时启动。 periodicPHR-Timer超时后触发 PHR,上报 PHR后 重新启动。 这种周期触发的机制确保, 在 DL PL变化比较少的情况下, 基 站还是能够了解 PH的变化情况。
三、 prohibitPHR-Timer为禁止 PHR上报定时器, prohibitPHR-Timer运 行期间, 禁止触发 PHR。 UE上报 PHR后, 会启动 prohibitPHR-Timer, 防 止终端在比较短的时间内 , 频繁触发 PHR。
上述事件触发 PHR后, UE收到上行授权, 准备在相应的 PHR子帧发 送 PUSCH时,通过物理层获得当前 PHR子帧的功率余量( Power Headroom, PH )值, 并基于此 PH值生成和上报 MAC CE, 即 PH值携带在 MAC CE 中上报给基站。 这里需要指出的是: 针对 PHR和 PH值的关系而言, PHR 是一个过程,可以称为上报 PHR给基站的过程,但是上报的具体内容是 PH 值, 也就是说, 计算 PHR实际上相当于计算 PH值。
在子帧 i上报 PHR时, PH的计算公式如以下公式( 1 )所示:
PH (0 = -^CMAX _ { 1 log10 (^ USCH (0) + -^O PUSCH (j) + a(j) - PL + ATF (i) + f(i) } ( 1 ) 公式(1 ) 中, PH的量纲是分贝 (dB ), 其中 PCMAX为由 UE功率等级决 定的最大允许上报功率,在 3GPP协议 TS36.101中定义。 MPUSCH(0为在子帧 i 以资源块数目所表示的 PUSCH 资源分配带宽。 P。PUSCH /)由小区特定的 ( Cell specific ) 归一化部分 。— NMINAL PUSCH /)和 UE特定的 ( UE specific )部 分 。 PUSCHC )之和组成, 上述两个参数由高层协议层, 一般指无线资源控 制 (RRC层) 配置。 《为小区特定的路损补偿系数。 PL是在 UE侧估算的 下行路损 ,以 dB表示。 PL = reference SignalPower-higher layer filtered RSRP。 ATF(0为在子帧 i的 MCS调整偏移。 /( )为在子帧 i的 PUSCH功率控制调 整偏移。其中, referenceSignalPower表示参考信号功率,由高层配置; higher layer filtered RSRP表示高层所过滤的参考信号接收功率。
R10中, UE在连接态下可以通过多个分量载波与基站进行通讯, 这多 个分量载波包含一个主分量载波( PCC, Primary Component Carrier ),和 0-4 个辅分量载波(SCC, Secondary Component Carrier )0 目前有两种 PHR应 该上报, 第一种 PHR是: UE在一个分量载波上的最大发射功率与该分量 载波上 PUSCH发射功率的比值; 第二种 PHR是: 在考虑了物理上行控制 信道(PUCCH, physical uplink control channel ) 的发射功率以后, UE在一 个分量载波上的最大发射功率与该分量载波上 PUSCH的比值。并且认为对 于主服务小区 (Pcell, Primary serving cell ), 应该上报第二种 PHR, 因为 Pcell 上会同时上报物理上行共享信道 (PUSCH , physical uplink share channel ) 和 PUCCH。 如果只上报 PUSCH, 比如在辅服务小区 ( Scell, Secondary serving cell ) 上只上报第一种 PHR。
由于 R10 中引入了多载波聚合的特性, 因此, 之前 R8的需求, 即: UE当前发射功率不能超过 UE最大发射功率,被认为是 R10引入多载波聚 合的特性后分量载波的需求。 该分量载波的需求即为: UE在一个分量载波 上当前的发射功率不能超过该分量载波上允许的最大发射功率。 基于此, 进一步还引入新的需求, 即为: UE在所有分量载波上的发射功率加起来不 能超过 UE允许的最大发射功率。这里的所述 UE允许的最大发射功率与各 个分量载波上允许的最大发射功率不同。
为了满足这个新的需求, 虽然 eNB 可以根据每个分量载波上上报的 PHR来估算 UE在所有分量载波上的发射功率总和是否超过 UE允许的最大 发射功率, 但是, 由于当前每个分量载波上 PHR的管理是独立的, 即: 每 个分量载波上报 PHR的时间可能是不同的, 因此, 采用现有技术存在的缺 陷为: 基站如果根据不同时间上报的 PHR来估算 UE在所有分量载波上的 发射功率总和是否超过 UE允许的最大发射功率, 必然是不准确的,如果基 站根据这个不准确的估算来进行上行调度和功率控制, 可能会得到适得其 反的效果。 如果能准确地计算出载波聚合中的 PHR, 则能避免现有技术的 上述缺陷, 然而目前并未存在能准确计算出 PHR的方案。 发明内容
有鉴于此, 本发明的主要目的在于提供一种载波聚合中 PHR的计算方 法及系统, 能准确地计算出载波聚合中的 PHR, 基站能根据收到的 PHR准 确地估算出载波聚合中的 UE在所有分量载波上的发射功率总和,从而能避 免现有技术的上述缺陷。
为达到上述目的, 本发明的技术方案是这样实现的:
一种载波聚合中功率余量 4艮告的计算方法, 该方法包括:
上报载波聚合中多个分量载波的功率余量报告 (PHR ) 时, 对于用于 发送多个分量载波的 PHR的分量载波, 基于发送 PHR的子帧计算 PH值; 对于其他分量载波, 基于和发送 PHR的子帧最接近的所述其他分量载波上 的一个上行传输的子帧计算 PH值。
其中, 当基于所述用于发送多个分量载波的 PHR 的分量载波所发送 PHR的子帧计算 PH值时, Mpusch(O和 Atf(O中 的取值为: 所述用于发送多 个分量载波的 PHR的分量载波发送 PHR的子帧; 为: UE在所述用于 发送多个分量载波的 PHR的分量载波发送 PHR的子帧的物理上行共享信 道(PUSCH ) 功率控制调整偏移。
其中, 当基于所述其他分量载波和所述发送 PHR子帧最接近的所述其 他分量载波上的一个上行传输的子帧计算 PH值时, Mpusch(O和 Atf(O中 的取 值为:所述其他分量载波在发送 PHR子帧或发送 PHR子帧前最后一个上行 传输的子帧; 为: UE在所述其他分量载波当前的 PUSCH功率控制调 整偏移。 其中, 这里的所述其他分量载波在发送 PHR子帧或发送 PHR子 帧前最后一个上行传输的子帧指: 如果发送 PHR子帧有上行传输就基于该 发送 PHR子帧进行计算, 否则再往前追溯一个上行传输的子帧进行计算。
其中,所述多个分量载波都触发了所述 PHR并尚未上报所述 PHR的情 况下, 该方法还包括: 用户设备(UE )在收到所有分量载波中第一个上行 授权时上报所述 PHR, 并在 UE收到第一个上行授权的分量载波上上报所 述多个分量载波的 PHR; 如果同时有上行授权, 则随机选择;
所述用于发送多个分量载波的 PHR的分量载波为: 所述 UE收到第一 个上行授权的分量载波; 所述用于发送多个分量载波的 PHR的分量载波为 一个、 或至少两个。
其中,所述多个分量载波都触发了所述 PHR并尚未上报所述 PHR的场 景包括: 周期上报定时器超时、 或者路损 (PL )超出指定范围。
其中, 该方法还包括: 所述多个分量载波都触发 PHR, 并通过所述 UE 收到第一个上行授权的分量载波实现所述同时上报。
其中, 所述多个分量载波中的每个分量载波为配置的上行分量载波; 或者所述多个分量载波中的每个分量载波为配置的并且激活的上行分量载 波。
一种载波聚合中功率余量报告的计算系统, 该系统包括计算单元; 计 算单元用于上报载波聚合中多个分量载波的 PHR时, 对于用于发送多个分 量载波的 PHR的分量载波, 基于发送 PHR的子帧计算 PH值; 对于其他分 量载波, 基于和发送 PHR的子帧最接近的所述其他分量载波上的一个上行 传输的子帧计算 PH值。
其中, 该系统还包括: 上报单元, 用于在所述多个分量载波都触发了 所述 PHR并尚未上报所述 PHR的情况下, UE在收到所有分量载波中第一 个上行授权时上报所述 PHR, 并在 UE收到第一个上行授权的分量载波上 上报所述多个分量载波的 PHR; 如果同时有上行授权, 则随机选择;
所述用于发送多个分量载波的 PHR的分量载波为: 所述 UE收到第一 个上行授权的分量载波; 所述用于发送多个分量载波的 PHR的分量载波为 一个、 或至少两个。
其中,所述多个分量载波都触发了所述 PHR并尚未上报所述 PHR的场 景包括: 周期上报定时器超时、 或者 PL超出指定范围。
其中, 所述上 ^艮单元, 进一步用于所述多个分量载波都触发 PHR, 并 通过所述 UE收到第一个上行授权的分量载波实现所述同时上报。
其中, 所述多个分量载波中的每个分量载波为配置的上行分量载波; 或者所述多个分量载波中的每个分量载波为配置的并且激活的上行分量载 波。
本发明上报载波聚合中多个分量载波的 PHR时, 对于用于发送多个分 量载波的 PHR的分量载波, 基于发送 PHR的子帧计算 PH值; 对于其他分 量载波, 基于和发送 PHR的子帧最接近的所述其他分量载波上的一个上行 传输的子帧计算 PH值。
采用本发明, 可以解决 R10中引入多载波聚合的特性后, 如何准确地 计算出各个分量载波上的 PHR的问题, 准确地计算出载波聚合中的 PHR, 从而能避免现有技术的上述缺陷。 附图说明
图 1为本发明实施例一 PHR触发及上报的示意图;
图 2为本发明实施例二 PHR触发及上报的示意图;
图 3为本发明实施例三 PHR触发及上报的示意图。 具体实施方式
本发明的基本思想是:本发明上报载波聚合中多个分量载波的 PHR时, 对于用于发送多个分量载波的 PHR的分量载波,基于发送 PHR的子帧计算 PH值; 对于其他分量载波, 基于和发送 PHR的子帧最接近的所述其他分 量载波上的一个上行传输的子帧计算 PH值。
这里需要指出的是, 所谓 "最接近的", 指的是: 如果其他分量载波在 所述发送 PHR的子帧有上行传输,则基于所述发送 PHR的子帧计算 PH值; 如果其他分量载波在所述发送 PHR的子帧没有上行传输, 则基于所述其他 分量载波在所述发送 PHR子帧前最后一个上行传输的子帧计算 PH值。
本文中的上报和发送是有区别的, 区别在于: 所谓上报可以认为是一 个 MAC层的过程, 即需要发送 PHR给基站; 而所谓发送指的是物理层的 动作, 即在哪个分量载波上执行发送的操作。
下面结合附图对技术方案的实施作进一步的详细描述。
一种载波聚合中 PHR的计算方法, 主要包括以下内容:
当多个分量载波都触发了 PHR并尚未上 ^艮 PHR时(比如周期上报定时 器超时, 或者 PL超出指定范围), UE收到所有分量载波中第一个上行授权 时上报所述 PHR, 并在 UE收到第一个上行授权的分量载波上上报所述多 个分量载波的 PHR; 如果多个分量载波同时有上行授权, 则从中随机选择。 这里需要指出的是: 本文刻意区别出所述多个分量载波和所述所有分量载 波, 是在于描述: 部分分量载波触发了 PHR并尚未上报 PHR时, 以及所有 分量载波触发了 PHR并尚未上报 PHR时, 本发明方法同样适用, 另外, 上 报 PHR的分量载波不一定包括在已经触发 PHR的分量载波中, 不做赞述。
其中, 上报所述 PHR的分量载波的 PH的计算方法: 基于该分量载波 上报 PHR子帧的时刻计算 PH值; 其他分量载波 PH的计算方法: 基于所 述其他分量载波在所述上 4艮 PHR子帧的时刻前最后一个上行传输的时刻计 算 PH值。 这里, 该分量载波指上报所述 PHR的分量载波, 也可以称为用 于发送多个分量载波的 PHR的分量载波。 该分量载波具体为: UE在此分 量载波上收到第一个上行授权; 此时, 所述其他分量载波指: 除用于发送 多个分量载波的 PHR的分量载波之外的分量载波, 所述其他分量载波具体 为: 除 UE收到第一个上行授权的分量载波之外的分量载波。 其中, 该分量 载波可以为一个, 也可以为至少两个。
上述多个分量载波中的各个分量载波, 为配置的上行分量载波、 或者 为配置的并且激活的上行分量载波。
这里需要指出的是: 计算 PH值时可以采用公式(1 ), 但是本发明在应 用公式( 1 )计算 PH值时, Mpusch(O和 Atf(O中 i的取值与现有技术应用时不 同, 当基于该分量载波上报 PHR子帧的时刻计算 PH值时, 的取值为: 该 分量载波上报 PHR子帧的时刻; 当基于所述其他分量载波在所述上报 PHR 子帧的时刻前最后一个上行传输的时刻计算 PH值时, 的取值为: 在上报 PHR子帧的时刻前最后一个上行传输的时刻。 ^、的计算方法与现有技术应 用时也不同,当基于该分量载波上报 PHR子帧的时刻计算 PH值时, /('')为: UE在该分量载波上报 PHR子帧的时刻的 PUSCH功率控制调整偏移; 当 基于所述其他分量载波在所述上报 PHR子帧的时刻前最后一个上行传输的 时刻计算 PH值时, 为: UE当前的 PUSCH功率控制调整偏移。 计算 出 PH值后, 基于计算出的 PH值生成和上报 MAC CE给基站, PHR过程 是通过 UE上报 PHR的 MAC CE给网络侧来完成的。 UE通过 PHR过程通 知 eNB, UE最大发射功率与 UL-SCH的发射功率的差别,基站根据这个差 别, 进行上行调度和链路适配, 进一步决定是否进行功率控制, 以满足 UE 当前发射功率不能超过 UE最大发射功率的要求。
以下对本发明进行举例阐述。 为了描述清楚, 以下实施例仅从两个分 量载波 CC进行聚合的角度描述, 三个及三个以上 CC进行聚合的场景, 过 程是一样的, 即如果 UE当前有三个 CC进行聚合, 其中两个或一个 CC触 发了 PHR, 上报过程与以下实施例一致。
PHR 的†目关配置, 如 periodicPHR-Timer , prohibitPHR-Timer , dl-PathlossChange, 是每个分量载波分别有一套配置并分开管理, 或者所有 分量载波共用一套配置并统一管理, 基站可以通过 RRC连接建立消息通知 UE, 或者通过 RRC重配命令修改, 或者通过切换命令通知 UE, 或者通过 RRC重建命令通知 UE。 当 UE收到这些参数的配置, 或者修改时, MAC 层会复位。 之后在收到第一个上行授权时终端会触发和上报 PHR。
实施例一: 多个定时器且单独管理, 如本实施例中 UE聚合了两个
CC即两个定时器分别管理两个 cc。
UE在通讯过程中上行配置了 CC1和 CC2, 其中 CC1是 Pcell, CC2 是 Scell 。 CC1 和 CC2 有相 同控制 PHR 的参数配置 , 即 periodicPHR-Timer=20ms ( 20 个子帧, 即 20ms ) , prohibitPHR-Timer =10ms, dl-PathlossChange =3db, 并单独管理。
PHR的触发和上 ^艮如图 1所示。
T1 时刻 (子帧) , CC1 上 periodicPHR-Timer超时, 触发 CC1 的 PHR, T2时刻, CC2上 periodicPHR-Timer超时, 触发 CC2的 PHR, T3 时刻, UE收到 CC1的上行授权, 在 CC1上上报 CC1和 CC2的 PHR, CC1的 PHR基于 CC1在 T3时刻的传输时间间隔 ( TTI ) 计算 PH值, 即 PH ( i ) 中 i为 T3时刻的 TTI ( PH ( T3 , 下同) , mPUSCH(')为在 T3 时刻的 ΤΉ以资源块数目所表示的 PUSCH资源分配带宽, ATF(Z')为在 T3 时刻的 TTI的 MCS调整偏移, 为在 T3时刻的 TTI的 PUSCH功率控 制调整偏移。 由于 CC2不上报 PHR, 因此 CC2的 PHR基于 CC2在 T3 时刻之前最后一个上行传输(如 T2时刻 )计算 PH值, 即 PH ( T2 , T3 ) (下同) , mPUSCH (0为在 T2 时刻的 TTI以资源块数目所表示的 PUSCH 资源分配带宽, Δττ (ζ')为在 Τ2时刻的 ΤΤΙ的 MCS调整偏移, 为 UE 当前的 PUSCH 功率控制调整偏移。 上报 PHR 后, CC1 和 CC2 的 periodicPHR-Timer和 rohibitPHR-Timer重启。
T6时刻, CC1上 periodicPHR-Timer超时, 触发 CC1的 PHR, CC2 上 periodicPHR-Timer超时, 触发 CC2的 PHR。 T7时刻, UE收到 CC2 的上行授权,在 CC2上上报 CC1和 CC2的 PHR, CC2的 PHR基于 CC2 在 T7时刻的 ΤΉ计算 PH值, PH ( T7 ) 。 由于 CC1不上报 PHR, 因此 CCl的 PHR基于 CCl在 T7时刻之前最后一个上行传输(如 Τ5时刻) 计算 ΡΗ 值, 即 PH ( Τ5 , Τ7 ) 。 上报 PHR 后, CC1 和 CC2 的 periodicPHR-Timer和 rohibitPHR-Timer重启。
T9时刻, UE检测到 CC2上的 PL变化超过指定的 3db, 触发 CC2 的 PHR, T10时刻, UE收到 CC2的上行授权, 在 CC2上上报 CC2的 PHR, CC2的 PHR基于 CC2在 T10时刻的 TTI计算 PH值,即 PH( T10 )。 上报 PHR后, CC2的 periodicPHR-Timer和 prohibitPHR-Timer重启。 T10 时刻, UE也可以选择上报 CC1和 CC2的 PHR, CC2的 PHR计算方法 不变, CC1的 PHR基于 CC1在 T10时刻之前最后一个上行传输(如 T8 时刻 ) 计算 PH值, 即 PH ( T10, T8 ) 。
T11时刻, CC1上 periodicPHR-Timer超时, 触发 CC1的 PHR, T12 时刻, CC2上 periodicPHR-Timer超时, 触发 CC2的 PHR。 T13时刻, UE收到 CC1和 CC2的上行授权, 在 CC1上上报 CC1的 PHR, 在 CC2 上上报 CC2的 PHR, CC1的 PHR基于 CC1在 T13时刻的 TTI计算 PH 值, 即 PH ( T13 ) 。 CC2的 PHR基于 CC2在 T13时刻的 TTI计算 PH 值, 即 PH ( T13 ) 。 上报 PHR后, CC1 和 CC2的 periodicPHR-Timer 和 prohibitPHR-Timer重启。 T13时刻, UE也可以选择在 CC1 (或 CC2 ) 上上报 CC1和 CC2的 PHR, CC1的 PHR基于 CC1在 T13时刻的 TTI 计算 PH值, 即 PH ( T13 ) , 由于 CC2不上报 PHR, 但是 CC2有上行 授权会发送上行数据, 因此 CC2的 PHR基于 CC2在 T13时刻上行传输 计算 PH值, 即 PH ( T13 ) 。
实施例二: 一个定时器且统一管理所有的分量载波, 如本实施例中 UE聚合了两个 CC即一个定时器管理两个 CC。
UE在通讯过程中上行配置了 CC1和 CC2, 其中 CC1是 Pcell, CC2 是 Scell 。 CCl 和 CC2 有相 同控制 PHR 的参数配置 , 即 periodicPHR-Timer=20ms ( 20 个子帧, 即 20ms ) , prohibitPHR-Timer =10ms, dl-PathlossChange =3db, 统一管理。
PHR的触发和上 ^艮如图 2所示。
T2时刻, periodicPHR-Timer超时, 触发 CC1和 CC2的 PHR, T3 时刻, UE收到 CC1的上行授权, 在 CC1上上报 CC1和 CC2的 PHR, CC1的 PHR基于 CC1在 T3时刻的 TTI计算 PH值, 即 PH ( T3 ) 。 由 于 CC2不上报 PHR, 因此 CC2的 PHR基于 CC2在 T3时刻之前最后一 个上行传输(如 T1时刻)计算 PH值, 即 PH ( Tl , T3 )。 上报 PHR后, periodicPHR-Timer和 rohibitPHR-Timer重启。
T5时刻, periodicPHR-Timer超时, 触发 CC1和 CC2的 PHR。 T6 时刻, UE收到 CC2的上行授权, 在 CC2上上报 CC1和 CC2的 PHR, CC2的 PHR基于 CC2在 T6时刻的 TTI计算 PH值, 即 PH ( T6 ) 。 由 于 CC1不上报 PHR, 因此 CC1的 PHR基于 CC1在 T6时刻之前最后一 个上行传输 ( 口 T4时刻 )计算 PH值, 即 PH ( T4, T6 )。 上才艮 PHR后 , periodicPHR-Timer和 rohibitPHR-Timer重启。
T8时刻, UE检测到 CC2上的 PL变化超过指定的 3db, 触发 CC2 的 PHR, T9时刻, UE收到 CC2的上行授权,在 CC2上上报 CC2的 PHR, CC2的 PHR基于 CC2在 T9时刻的 TTI计算 PH值, 即 PH ( T9 ) 。 上 才艮 PHR后, periodicPHR-Timer和 prohibitPHR-Timer重启。 此时也可以 一起上报 CC1和 CC2的 PHR, CC2的 PHR计算同上, CC1的 PHR基 于 CC1在 T9时刻之前最后一个上行传输 (如 T7时刻 ) 计算 PH值, 即 PH ( T7, T9 ) 。
T10时刻 , periodicPHR-Timer超时, 触发 CC1和 CC2的 PHR。 Ti l 时刻, UE收到 CC1和 CC2的上行授权, 在 CC1上上报 CC1的 PHR, 在 CC2上上报 CC2的 PHR, CC1的 PHR基于 CC1在 T11时刻的 TTI 计算 PH值, 即 PH ( Ti l ) 。 CC2的 PHR基于 CC2在 Ti l时刻的 TTI 计算 PH 值, 即 PH ( T11 ) 。 上报 PHR 后, periodicPHR-Timer 和 prohibitPHR-Timer重启。
实施例三: 区别于实施例一, 虽然也是单独管理, 但是额外增加一 个定时器进行 CC管理, 是为了达到发送优化的目的。
UE在通讯过程中上行配置了 CC1和 CC2 , 其中 CC1是 Pcell, CC2 是 Scell 。 CC1 和 CC2 有相 同控制 PHR 的参数配置 , 即 periodicPHR-Timer=20ms ( 20 个子帧, 即 20ms ) , prohibitPHR-Timer =10ms , dl-PathlossChange =3db , 并单独管理。 同时基站通知 UE , nodata-Timer=15ms, 不上报 PHR的 CC, 在上报 PHR的 TTI与在此之 前最后一个上行传输的 TTI之间的时间差超过 15ms (大于或等于 ) , 那 么该 CC的 PH值根据发射功率为 0来计算。
PHR的触发和上 ^艮如图 3所示。
T2时刻, CC1上 periodicPHR-Timer超时, 触发 CC1 的 PHR, T3 时刻, UE收到 CC1的上行授权, 在 CC1上上报 CC1和 CC2的 PHR, CC1的 PHR基于 CC1在 T3时刻的 TTI计算 PH值, 即 PH ( T3 ) 由于 CC2不上报 PHR, 因此 CC2的 PHR基于 CC2在 T3时刻之前最后一个 上行传输(如 T1时刻 ) 计算 PH值, 即 PH ( Tl , T3 ) 。 上报 PHR后, CC1和 CC2的 periodicPHR-Timer和 prohibitPHR-Timer重启。
T6时刻, CC1上 periodicPHR-Timer超时, 触发 CC1的 PHR, CC2 上 periodicPHR-Timer超时, 触发 CC2的 PHR。 T7时刻, UE收到 CC2 的上行授权,在 CC2上上报 CC1和 CC2的 PHR, CC2的 PHR基于 CC2 在 T7时刻的 TTI计算 PH值, 即 PH ( T7 )。 由于 CC1不上报 PHR, 因 此 CC1的 PHR基于 CC1在 T7时刻之前最后一个上行传输(如 T5时刻 ) 计算 PH 值, 即 PH ( T5 , T7 ) 。 上报 PHR 后, CC1 和 CC2 的 periodicPHR-Timer和 rohibitPHR-Timer重启。
T8时刻, UE检测到 CC2上的 PL变化超过指定的 3db, 触发 CC2 的 PHR, T9时刻, UE收到 CC1的上行授权,在 CC1上上报 CC1和 CC2 的 PHR, CC1的 PHR基于 CC1在 T9时刻的 TTI计算 PH值 ,即 PH( T9 由于 CC2不上报 PHR, 因此 CC2的 PHR基于 CC2在 T9时刻之前最后 一个上行传输 (如 T7时刻 )计算 PH值, 即^ PR ( T7, T9 ) 。 上 报 PHR后, CC1和 CC2的 periodicPHR-Timer和 prohibitPHR-Timer重 启。
如果 T9时刻 UE收到 CC2的上行授权, UE在 CC2上发送 CC1和 CC2的 PHR, CC2的 PHR基于 CC2在 T9时刻的 TTI计算 PH值, 即 PH ( T9 ) , 由于 CC1 不发送 PHR, 因此 CC1 的 PHR基于 CC1在 T9 时刻之前最后一个上行传输(如 T5时刻 )计算 PH值, 但是 T5与 T9之 间的时间差超过 nodata-Timer即 15ms , 因此 CC 1的 PHR基于发射功率 为 0计算 PH值。 上报 PHR后, CC1和 CC2的 periodicPHR-Timer和 prohibitPHR-Timer重启。
一种载波聚合中 PHR的计算系统, 该系统包括计算单元; 计算单元用 于上报载波聚合中多个分量载波的 PHR时, 对于用于发送多个分量载波的 PHR的分量载波, 基于发送 PHR的子帧计算 PH值; 对于其他分量载波, 基于和发送 PHR的子帧最接近的所述其他分量载波上的一个上行传输的子 帧计算 PH值。
这里需要指出的是, 所谓 "最接近的", 指的是: 如果其他分量载波在 所述发送 PHR的子帧有上行传输,则基于所述发送 PHR的子帧计算 PH值; 如果其他分量载波在所述发送 PHR的子帧没有上行传输, 则基于所述其他 分量载波在所述发送 PHR子帧前最后一个上行传输的子帧计算 PH值。
这里, 该系统还包括: 上报单元, 用于在所述多个分量载波都触发了 所述 PHR并尚未上报所述 PHR的情况下, UE在收到所有分量载波中第一 个上行授权时触发及上报所述 PHR, 并在 UE收到第一个上行授权的分量 载波上上报所述多个分量载波的 PHR;如果多个分量载波同时有上行授权, 则随机选择。 所述用于发送多个分量载波的 PHR的分量载波为: 所述 UE 收到第一个上行授权的分量载波; 所述用于发送多个分量载波的 PHR的分 量载波为一个、 或至少两个。
这里,所述多个分量载波都触发了所述 PHR并尚未上报所述 PHR的场 景包括: 周期上报定时器超时、 或者 PL超出指定范围。
这里, 所述上 ^艮单元, 进一步用于所述多个分量载波都触发 PHR, 并 通过所述 UE收到第一个上行授权的分量载波实现所述同时上报。
这里, 所述多个分量载波中的每个分量载波为配置的上行分量载波; 或者所述多个分量载波中的每个分量载波为配置的并且激活的上行分量载 波。
以上所述, 仅为本发明的较佳实施例而已, 并非用于限定本发明的保 护范围。

Claims

权利要求书
1、 一种载波聚合中功率余量报告的计算方法, 其特征在于, 该方法包 括:
上报载波聚合中多个分量载波的功率余量报告 (PHR ) 时, 对于用于 发送多个分量载波的 PHR的分量载波, 基于发送 PHR的子帧计算 PH值; 对于其他分量载波, 基于和发送 PHR的子帧最接近的所述其他分量载波上 的一个上行传输的子帧计算 PH值。
2、 根据权利要求 1所述的方法, 其特征在于, 当基于所述用于发送多 个分量载波的 PHR的分量载波所发送 PHR的子帧计算 PH值时, MPUSCH(0和 ATF(O中 的取值为: 所述用于发送多个分量载波的 PHR 的分量载波发送 PHR的子帧; 为: UE在所述用于发送多个分量载波的 PHR的分量载波 发送 PHR的子帧的物理上行共享信道(PUSCH ) 功率控制调整偏移。
3、 根据权利要求 1所述的方法, 其特征在于, 当基于所述其他分量载 波和所述发送 PHR子帧最接近的所述其他分量载波上的一个上行传输的子 帧计算 PH值时, MPUSCH(O和 ATF(O中 的取值为: 所述其他分量载波在发送 PHR子帧或发送 PHR子帧前最后一个上行传输的子帧; 为: UE在所述 其他分量载波当前的 PUSCH功率控制调整偏移。
4、 根据权利要求 1所述的方法, 其特征在于, 所述多个分量载波都触 发了所述 PHR并尚未上报所述 PHR的情况下, 该方法还包括: 用户设备
( UE )在收到所有分量载波中第一个上行授权时上报所述 PHR, 并在 UE 收到第一个上行授权的分量载波上上报所述多个分量载波的 PHR; 如果同 时有上行授权, 则随机选择;
所述用于发送多个分量载波的 PHR的分量载波为: 所述 UE收到第一 个上行授权的分量载波; 所述用于发送多个分量载波的 PHR的分量载波为 一个、 或至少两个。
5、 根据权利要求 4所述的方法, 其特征在于, 所述多个分量载波都触 发了所述 PHR并尚未上报所述 PHR的场景包括:周期上报定时器超时、或 者路损 ( PL )超出指定范围。
6、 根据权利要求 4所述的方法, 其特征在于, 该方法还包括: 所述多 个分量载波都触发 PHR, 并通过所述 UE收到第一个上行授权的分量载波 实现所述同时上报。
7、 根据权利要求 1至 6中任一项所述的方法, 其特征在于, 所述多个 分量载波中的每个分量载波为配置的上行分量载波; 或者所述多个分量载 波中的每个分量载波为配置的并且激活的上行分量载波。
8、 一种载波聚合中功率余量报告的计算系统, 其特征在于, 该系统包 括计算单元; 计算单元用于上报载波聚合中多个分量载波的 PHR时, 对于 用于发送多个分量载波的 PHR的分量载波, 基于发送 PHR的子帧计算 PH 值; 对于其他分量载波, 基于和发送 PHR的子帧最接近的所述其他分量载 波上的一个上行传输的子帧计算 PH值。
9、 根据权利要求 8所述的系统, 其特征在于, 该系统还包括: 上报单 元,用于在所述多个分量载波都触发了所述 PHR并尚未上报所述 PHR的情 况下, UE在收到所有分量载波中第一个上行授权时上报所述 PHR, 并在 UE收到第一个上行授权的分量载波上上报所述多个分量载波的 PHR;如果 同时有上行授权, 则随机选择;
所述用于发送多个分量载波的 PHR的分量载波为: 所述 UE收到第一 个上行授权的分量载波; 所述用于发送多个分量载波的 PHR的分量载波为 一个、 或至少两个。
10、 根据权利要求 9所述的系统, 其特征在于, 所述多个分量载波都 触发了所述 PHR并尚未上报所述 PHR的场景包括: 周期上报定时器超时、 或者 PL超出指定范围。
11、 根据权利要求 9所述的系统, 其特征在于, 所述上报单元, 进一 步用于所述多个分量载波都触发 PHR, 并通过所述 UE收到第一个上行授 权的分量载波实现所述同时上报。
12、 根据权利要求 8至 11中任一项所述的系统, 其特征在于, 所述多 个分量载波中的每个分量载波为配置的上行分量载波; 或者所述多个分量 载波中的每个分量载波为配置的并且激活的上行分量载波。
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