WO2012055136A1 - 一种获取ue载波实际功率空间的方法及系统 - Google Patents

一种获取ue载波实际功率空间的方法及系统 Download PDF

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Publication number
WO2012055136A1
WO2012055136A1 PCT/CN2010/080224 CN2010080224W WO2012055136A1 WO 2012055136 A1 WO2012055136 A1 WO 2012055136A1 CN 2010080224 W CN2010080224 W CN 2010080224W WO 2012055136 A1 WO2012055136 A1 WO 2012055136A1
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Prior art keywords
carrier
value
phr
phr value
actual
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PCT/CN2010/080224
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English (en)
French (fr)
Inventor
王曼
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中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to US13/522,521 priority Critical patent/US20120300703A1/en
Priority to EP10858865.8A priority patent/EP2515589A4/en
Publication of WO2012055136A1 publication Critical patent/WO2012055136A1/zh

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    • 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
    • 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
    • H04W52/34TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading

Definitions

  • the present invention relates to the field of wireless communications, and in particular, to a method and system for acquiring a real power space (PHR, Power Headroom) of a UE carrier.
  • PHR Power Headroom
  • LTE-advanced represented by technologies such as carrier aggregation, relay, and multipoint coordination
  • LTE-Advanced requires a downlink lGbit/s and a peak rate of 500 Mbit/s in a 100 MHz bandwidth.
  • LTE-Advanced has incorporated carrier aggregation technology.
  • Carrier Aggregation (CA) technology can be used to aggregate distributed spectrum resources to achieve larger bandwidth (greater than 20MHz) and higher data rates, thus greatly promoting the development of mobile communications.
  • LTE-Advanced introduces the concept of component carrier, and the maximum bandwidth of each component carrier does not exceed 20MHz.
  • the component carrier is further divided into an active component carrier and a deactivated component carrier.
  • the UE performs data transmission on the activated component carrier, and does not perform any data transmission on the deactivated component carrier, and does not support CQI, which is difficult to measure. But it does not make any measurements like non-configured member carriers.
  • each UE is configured with one primary carrier, and the rest are auxiliary carriers.
  • PHR refers to the difference between the actual transmit power and the nominal maximum transmit power. PHR expresses the potential of terminal power rise and is an important basis for determining terminal cell handover and determining the primary carrier.
  • the traditional UE in the case of non-carrier aggregation needs to report the signal strength of each UE (mainly refers to power), and then compares the signal strength of the current cell and the neighboring cell as the basis for cell handover.
  • the situation is more complicated. Reporting only the signal strength of each UE is insufficient to support the scheduling of the base station in the network to the terminal.
  • one terminal works for one or more component carriers (CCs) in one or more frequency bands.
  • CC component carriers
  • a CC works, whether to report the PHR of a single CC or report to a single CC.
  • the PHR of each CC which gives the actual power space information, is a new problem that arises.
  • the secondary carrier is activated or deactivated, is constantly being dynamically adjusted according to the state of the network at the time. Therefore, it is particularly important to obtain the PHR of the UE.
  • the network not only needs to periodically monitor the actual power of the terminal, but also needs to know the allocation of power between the sub-carriers of the UE, and the space for the power of each sub-carrier to rise to determine all the sub-carriers.
  • the main purpose of the present invention is to provide a method and system for acquiring an actual power space of a UE carrier, which can effectively acquire a carrier actual power space (PHR value) of a UE in a carrier aggregation scenario, so as to perform related decision and improve the system. performance.
  • PHR value carrier actual power space
  • a method for obtaining an actual power space of a UE carrier includes:
  • the user equipment UE reports the power space PHR value of the corresponding carrier of the UE to the network side through the interaction information;
  • the network side processes the PHR value reported by the UE, and obtains an actual PHR value of the carrier corresponding to the UE.
  • the PHR value reported by the UE is the PHR value of the primary carrier or the PHR value of each carrier.
  • the PHR value of the carrier reported by the UE is: the UE only reports the PHR value of the carrier, or the PHR value of the carrier at the same time, and the PHR value of all carriers related to the carrier.
  • the network side processes the PHR value of the UE on the UE, and obtains the actual PHR value of the corresponding carrier of the UE:
  • the network side forwards the PHR value reported by the UE to the corresponding maximum transmit power back-off MPR value. Subtracting, the actual PHR value of the corresponding carrier of the UE is obtained.
  • the MPR value is an MPR value preset by the network side, or is an MPR value reported by the UE through the interaction message.
  • a system for acquiring an actual power space of a UE carrier comprising: a network side and a UE; wherein, the network side is configured to receive a PHR value of the UE corresponding carrier that is reported by the UE through the interaction information, and Processing a PHR value of 4 ⁇ to obtain an actual PHR value of the corresponding carrier of the UE;
  • the UE is configured to send, by using the interaction information, a PHR value of the UE corresponding carrier to the network side.
  • the PHR value reported by the UE is the PHR value of the primary carrier or the PHR value of each carrier.
  • the PHR value of the carrier on the UE is: the PHR value of the carrier only on the UE, or the PHR value of the carrier at the same time, and all carriers related to the carrier PHR value.
  • the network side processes the PHR value of the UE, and obtains the actual PHR value of the corresponding carrier of the UE:
  • the network side forwards the PHR value reported by the UE to the corresponding maximum transmit power backoff MPR value. Subtracting, the actual PHR value of the corresponding carrier of the UE is obtained.
  • the UE is further configured to pass an MPR value on the interaction message.
  • the network side is also used to preset an MPR value.
  • the present invention relates to a method and a system for acquiring an actual power space of a UE carrier.
  • the user equipment transmits the power space of the corresponding carrier in the carrier aggregation scenario to the network side through the interaction information, and the network side processes the received interaction information to learn that the user equipment corresponds.
  • the actual power space of the carrier With the present invention, the network side can effectively obtain the actual carrier power space (PHR) of the UE in the carrier aggregation scenario, thereby facilitating the network side to make relevant decisions and improve system performance.
  • PHR carrier power space
  • FIG. 1 is a schematic flowchart of a method for acquiring an actual power space of a UE carrier according to the present invention
  • FIG. 2 is a schematic flowchart of a method for acquiring an actual power space of a UE carrier according to Embodiment 1 of the present invention
  • FIG. 3 is a schematic flowchart of a method for acquiring an actual power space of a UE carrier according to Embodiment 2 of the present invention
  • Schematic diagram of the method flow of the power space
  • the technical problem to be solved by the present invention is to solve the problem of reporting the actual power space (PHR) of the UE in the case of multiple CCs in the CA scenario, so as to solve the problem that the eNB cannot accurately know the power headroom of the UE in the CA scenario in the prior art.
  • PHR power space
  • the basic idea of the present invention is: The user equipment sends the power space of the corresponding carrier in the carrier aggregation scenario to the network side through the interaction information, and the network side processes the received interaction information to obtain the actual power space of the carrier corresponding to the user equipment.
  • FIG. 1 is a schematic flowchart of a method for acquiring an actual power space of a UE carrier according to the present invention. As shown in FIG. 1 , the method includes:
  • Step 101 The UE sends the PHR value of the corresponding carrier of the UE to the network side by using the interaction information.
  • the UE cannot directly report the PHR value, but the PHR value is carried in a fixed information format, and is uniformly sent by the physical layer channel.
  • the UE may report only the PHR value of the primary carrier (PCC), or may also upload the PHR value of each CC.
  • Step 102 The network side processes the PHR value of the UE, and obtains an actual PHR value of the corresponding carrier of the UE.
  • the network side processes the PHR value of the UE
  • the actual PHR value of the corresponding carrier of the UE may be: after the network side receives the PHR value sent by the UE, according to the network, the different component carriers (CC)
  • the configuration is as follows: After the PHR value reported by the UE is respectively subtracted from the corresponding Maximum Output Power (MPR) value, the actual PHR value of the corresponding carrier of the UE is obtained. It can be seen that the actual power space expresses the actual value of the power space, which is the difference between the PHR value and the MPR value. This value embodies the space in which the UE power can actually rise.
  • MPR Maximum Output Power
  • the MPR value related to the actual PHR value may generate multiple power amplifiers due to the configuration of multiple frequency bands and CCs, and the MPR value corresponds to the number of power amplifiers. When there are several power amplifiers, several MPR values are generated.
  • the UE reports the PHR value and the network value of each CC.
  • the PHR value of the carrier reported by the UE is: the UE only reports the PHR value of the carrier, or the UE simultaneously performs the PHR value of the carrier, and the carrier related to the carrier.
  • the PHR value of all carriers in other words, for a single CC, can only report its own PHR value; it can also consider the PHR value of all CCs associated with it, and the PHR value of all its associated CCs.
  • the UE When the UE is configured with multiple power amplifiers, if the base station only pays attention to the actual PHR value of the PCC, the UE only needs to report the PHR value of the PCC. If the base station pays attention to the actual PHR value of each CC, the UE needs to report the PHR of each CC. Value, need to be explained, on the single For CCs, you can consider only your actual PHR values, as well as the actual PHR values of all CCs associated with them. For the entire UE, since each CC considers the MPR when reporting, the actual PHR value of the entire UE is the sum of the actual PHR values of each CC.
  • the network side in the present invention may be a base station (Base Station), a relay (Relay), or a repeater (Repeater) in a general sense, and has a base station processing information capability.
  • Base Station Base Station
  • relay relay
  • Repeater repeater
  • the MPR value can be obtained by the network side in the following two ways. Which method is selected after the system is determined according to the size of the MPR value:
  • the UE reports the MPR value and the PHR value at the same time. This case is applicable to the case where the MPR value of the UE is large (generally, the MPR value is greater than 2 dB).
  • the MPR value is preset in the network side, that is, a certain margin is reserved for the MPR value during scheduling, for example, l-2dB, the predicted value is considered in the scheduling, and the MPR predicted value is directly subtracted when calculating the actual PHR value. .
  • This method is suitable when the MPR is small (generally no more than 2dB).
  • the present invention further provides a system for acquiring an actual power space of a UE carrier, where the system includes: a network side and a UE;
  • the network side is configured to receive a PHR value of the UE corresponding carrier that is reported by the UE through the interaction information, and process the PHR value reported by the UE, and obtain an actual PHR value of the corresponding carrier of the UE;
  • the UE is configured to send, by using the interaction information, a PHR value of the UE corresponding carrier to the network side.
  • the PHR value reported by the UE is the PHR value of the primary carrier or the PHR value of each carrier.
  • the PHR value of the carrier on the UE is: the PHR value of the carrier only on the UE, or the PHR value of the carrier at the same time, and all carriers related to the carrier PHR value.
  • the network side processes the PHR value of the UE, and obtains the actual PHR value of the corresponding carrier of the UE: The network side forwards the PHR value reported by the UE to the corresponding maximum transmit power backoff MPR value. Subtracting, the actual PHR value of the corresponding carrier of the UE is obtained.
  • the UE is further configured to pass an MPR value on the interaction message.
  • the network side is also used to preset an MPR value.
  • the specifically set method predicts the MPR value of the UE according to the resource block allocation and demodulation mode of the UE.
  • Example 1 The implementation of the technical solution of the present invention will be further described in detail below with reference to specific embodiments.
  • Example 1
  • the UE When the UE is configured with only one amplifier, only one MPR value is involved. In this case, the UE may be equipped with only one CC or two or more CCs.
  • the content of the above is only: the PHR value of PCC is only obtained, and the actual power space of PCC is obtained by subtracting from MPR; or considering the MPR of all CCs, the PHR value of each CC is subtracted from MPR by The actual power space of each CC is obtained.
  • the PHR value of the current CC is reported; or the PHR value of all CCs is considered, and the PHR values of all relevant CCs are listed.
  • the actual power space of the entire UE is the sum of the actual power space of each CC. This embodiment will be described by taking the case of considering all CCs as an example.
  • FIG. 2 is a schematic flowchart of a method for acquiring an actual power space of a UE carrier according to Embodiment 1 of the present invention. As shown in FIG. 2, the method includes:
  • Step 201 Determine whether the terminal is in an idle (IDLE) or CONNECTED state, as in the IDLE state, then go to step 202; if in the CONNECTED state, the UE maintains connection and information interaction with the eNB, then go to step 205.
  • IDLE idle
  • CONNECTED the UE maintains connection and information interaction with the eNB
  • Step 202 The UE sends a radio resource control connection request message (RRC Connection Request) to the eNB.
  • RRC Connection Request radio resource control connection request message
  • Step 203 The eNB allocates resources of the RRC phase to the UE, and sends the wireless to the UE.
  • Resource Control Connection Setup message RRC Connection Setup
  • Step 204 The UE successfully establishes a connection, and sends a RRC Connection Setup Complete message to the eNB.
  • Step 205 The UE applies a PHR value of all configured CCs to each CC.
  • Step 206 After receiving the PHR value sent by the UE, the eNB subtracts the current PHR value from the corresponding MPR value, and obtains the actual PHR value of each CC.
  • the specific message format of the PHR value of all CCs configured by the UE on each CC in step 205 may be:
  • the UE After receiving the RRC Connected Setup Complete confirmation, the UE requests the eNB to allocate a PUSCH channel transmission time slot;
  • the UE After receiving the time slot allocation acknowledgement, the UE sends the PHR value to the eNB through the PUSCH channel transmission time slot allocated by the signal through the Signal Quality Information message;
  • the eNB performs information processing to obtain the actual power space of each CC and the entire UE.
  • Example 2
  • each power amplifier has an MPR value.
  • This embodiment is different from the first embodiment in the content of the above >3 ⁇ 4 content.
  • FIG. 3 is a schematic flowchart of a method for acquiring an actual power space of a UE carrier according to Embodiment 2 of the present invention. As shown in FIG. 3, the method includes:
  • Steps 301 to 304 The same steps 201 to 204.
  • Step 305 The UE reports the PHR value of each CC.
  • Step 306 After receiving the PHR value sent by the UE, the eNB subtracts the PHR value of the current CC from the MPR value of the current CC, respectively, to obtain an actual power space value of each CC.
  • Example 3 After receiving the PHR value sent by the UE, the eNB subtracts the PHR value of the current CC from the MPR value of the current CC, respectively, to obtain an actual power space value of each CC.
  • FIG. 4 is a schematic flowchart of the method for acquiring the actual power space of the UE carrier according to Embodiment 3 of the present invention. As shown in FIG. 4, the method includes:
  • Step 401 The eNB wants to obtain the UE PHR value information, and initiates an information query request (UE Enquiry).
  • Step 402 After receiving the request, the UE confirms whether it is in the RRC Connected state, and if yes, proceeds to step 404; otherwise, performs step 403.
  • Step 403 The UE establishes an RRC connection with the eNB, and the eNB allocates a slot resource to the UE.
  • the PUSCH channel is sent to the eNB.
  • Step 405 After processing, the eNB learns the actual PHR value of the UE.
  • the present invention is not limited to a carrier aggregation scenario. As long as the UE works on the inter-frequency at the same time, it will involve the problem of reporting the PHR of each frequency band, which can be solved by the "3 ⁇ 4 method" in the actual power space proposed by the present invention.

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Abstract

本发明公开了一种获取用户设备(UE)载波实际功率空间(PHR)的方法,UE将其在载波聚合场景下对应载波的功率空间通过交互信息发送到网络侧,网络侧对接收的交互信息进行处理后获知用户设备对应载波的实际功率空间。本发明还相应地公开了一种获取用户设备载波实际功率空间的系统。通过本发明,网络侧能够在载波聚合场景下有效获取UE的载波实际功率空间,从而便于网络侧进行相关决策,提高系统性能。

Description

一种获取 UE载波实际功率空间的方法及系统 技术领域
本发明涉及无线通信领域, 尤其涉及一种获取 UE载波实际功率空间 ( PHR, Power Headroom ) 的方法及系统。 背景技术
随着移动通信的发展, 以载波聚合、 中继(Relay )、 多点协作等技术为 代表的 LTE-advanced作为 LTE ( Long Term Evaluation ) 的增强版本, 得到 了飞速发展。 LTE-Advanced要求在 100MHz的带宽内提供下行 lGbit/s、 上 行 500Mbit/s的峰值速率。 为了在如此宽的带宽内工作, LTE-Advanced弓 I 入了载波聚合技术。
应用载波聚合 ( Carrier Aggregation, CA )技术, 可以将分散的频谱资 源通过聚合的方式整合起来, 得到更大的带宽(大于 20MHz )、 更高的数据 速率, 从而极大推动移动通信的发展。 考虑到与 LTE 的后向兼容性, LTE-Advanced 引入了成员载波的概念, 每个成员载波的最大带宽不超过 20MHz。 成员载波又进一步被划分为激活成员载波与去激活成员载波, UE 在激活成员载波上进行数据传输, 而在去激活成员载波上不进行任何数据 传输, 也不支持 CQI类似难度较大的测量, 但其又不像非配置成员载波那 样不进行任何测量。 另外, 每个 UE都会被配置一个主载波, 其余都为辅载 波。
但是同时, 我们也可以看到, 由于载波聚合技术的应用, 多个载波聚 合后耗费的功率显然比单载波的时候要大, 这就对 LTE-advanced系统的一 些器件的性能有了更高的要求; 而且, 由于各个载波之间的协同合作问题, 也必然会要求上层信令流程对一些新的需求的进行配合, 上报一些上层需 要了解的、 各载波之间协同工作产生的必须的信息, 以帮助网络更好地进 行无线资源的调度。
PHR是指实际发射功率与标称最大发射功率之间的差值, PHR表达了 终端功率上升的潜力, 是确定终端小区切换以及确定主载波的重要依据。
传统的 UE (非载波聚合情况下 )需要上报每个 UE的信号强度(主要 指功率), 再对比当前小区和相邻小区的信号强度作为小区切换的依据。 在 载波聚合的场景下, 情况就更为复杂。仅上报每个 UE的信号强度不足以支 持基站在网络对终端的调度。
在载波聚合场景下, 一个终端对应一个或多个频带下的一个或多个成 员载波(Component Carrier, CC )进行工作, 在某一个 CC工作时, 是上 报单个 CC的 PHR,还是对单个 CC上报每个 CC的 PHR,从而得到实际功 率空间信息, 这些都是出现的新的问题。对于每个 CC来说, 这些子载波是 主载波还是辅载波, 辅载波是激活还是去激活, 都根据当时网络的状况处 于不断的动态调整之中。 因此, 获取 UE的 PHR就显得尤为重要, 网络不 仅需要定时监测终端的实际功率,还需要获知 UE在各个子载波之间功率的 分配情况, 以及各子载波的功率上升的空间, 以确定所有子载波主辅载波 分配和主辅载波的信息承载量。 发明内容
有鉴于此,本发明的主要目的在于提供一种获取 UE载波实际功率空间 的方法及系统, 能够在载波聚合场景下有效获取 UE 的载波实际功率空间 ( PHR值), 以便进行相关决策, 提高系统性能。
为达到上述目的, 本发明的技术方案是这样实现的:
一种获取 UE载波实际功率空间的方法, 包括:
用户设备 UE通过交互信息向网络侧上报所述 UE对应载波的功率空间 PHR值; 网络侧对所述 UE上报的 PHR值进行处理, 获取所述 UE对应载波的 实际 PHR值。
所述 UE上报的 PHR值为主载波的 PHR值或每个载波的 PHR值。 所述 UE上报载波的 PHR值为: 所述 UE只上报所述载波的 PHR值, 或者, 所述 UE同时上 所述载波的 PHR值, 以及与所述载波相关的所有 载波的 PHR值。
所述网络侧对所述 UE上 4艮的 PHR值进行处理, 获取所述 UE对应载 波的实际 PHR值为: 网络侧将所述 UE上报的 PHR值分别与相应的最大发 射功率回退 MPR值相减, 得到所述 UE对应载波的实际 PHR值。
所述 MPR值为网络侧预先设置的 MPR值, 或者, 为所述 UE通过所 述交互消息上报的 MPR值。
一种获取 UE载波实际功率空间的系统, 包括: 网络侧和 UE; 其中, 所述网络侧, 用于接收 UE通过交互信息上报的、 所述 UE对应载波的 PHR值, 并对所述 UE上 4艮的 PHR值进行处理, 获取所述 UE对应载波的 实际 PHR值;
所述 UE, 用于通过交互信息向网络侧上"¾所述 UE对应载波的 PHR 值。
所述 UE上报的 PHR值为主载波的 PHR值或每个载波的 PHR值。 所述 UE上 ^艮载波的 PHR值为: 所述 UE只上^艮所述载波的 PHR值, 或者, 所述 UE同时上 所述载波的 PHR值, 以及与所述载波相关的所有 载波的 PHR值。
所述网络侧对所述 UE上 ^艮的 PHR值进行处理, 获取所述 UE对应载 波的实际 PHR值为: 网络侧将所述 UE上报的 PHR值分别与相应的最大发 射功率回退 MPR值相减, 得到所述 UE对应载波的实际 PHR值。
所述 UE, 还用于通过所述交互消息上 MPR值。 所述网络侧, 还用于预先设置 MPR值。
本发明涉及获取 UE载波实际功率空间的方法及系统,用户设备将其在 载波聚合场景下对应载波的功率空间通过交互信息发送到网络侧, 网络侧 对接收的交互信息进行处理后获知用户设备对应载波的实际功率空间。 通 过本发明,网络侧能够在载波聚合场景下有效获取 UE的载波实际功率空间 ( PHR ), 从而便于网络侧进行相关决策, 提高系统性能。 附图说明
图 1为本发明获取 UE载波实际功率空间的方法流程示意图;
图 2为本发明实施例 1获取 UE载波实际功率空间的方法流程示意图; 图 3为本发明实施例 2获取 UE载波实际功率空间的方法流程示意图; 图 4为本发明实施例 3获取 UE载波实际功率空间的方法流程示意图。 具体实施方式
本发明所要解决的技术问题是在 CA场景下多个 CC配置情况下 UE实 际功率空间(PHR )的上报问题, 以解决现有技术中 eNB不能准确获知 CA 场景下 UE的功率上升空间的问题。
本发明的基本思想是: 用户设备将其在载波聚合场景下对应载波的功 率空间通过交互信息发送到网络侧, 网络侧对接收的交互信息进行处理后 获知用户设备对应载波的实际功率空间。
图 1 为本发明获取 UE载波实际功率空间的方法流程示意图, 如图 1 所示, 该方法包括:
步骤 101: UE通过交互信息向网络侧上 ^艮所述 UE对应载波的 PHR值。 上报过程中, UE不能直接上报 PHR值, 而是将 PHR值承载在固定的 信息格式中, 由物理层信道统一发送。 这里, UE可以仅上报主载波(PCC ) 的 PHR值, 也可以上 4艮每个 CC的 PHR值。 步骤 102: 网络侧对所述 UE上 ^艮的 PHR值进行处理, 获取所述 UE 对应载波的实际 PHR值。
这里, 网络侧对所述 UE上 ^艮的 PHR值进行处理, 获取所述 UE对应 载波的实际 PHR值具体可以为: 网络侧收到 UE发送的 PHR值后,根据网 络对不同成员载波(CC )配置情况的规定, 将 UE上报的 PHR值分别与相 应的最大发射功率回退( Maximum Output Power, MPR )值相减后, 得到所 述 UE对应载波的实际 PHR值。 可以看出, 实际功率空间表达了功率空间 的实际值,是 PHR值和 MPR值的差值,这个值具体体现了 UE功率实际能 够上升的空间。
一般的, 当 UE只配置了一个功放(即配置了一个频带)的时候, 只有 一个 MPR值; 当 UE配置了多个功放的时候, 对应每个功放有一个 MPR 值。本发明中,对实际 PHR值相关的 MPR值,由于多个频带和 CC的配置, 可能产生多个功放, MPR值与功放个数对应, 有几个功放, 就会产生几个 MPR值。
具体来说, 当 UE只配置一个功放时, 如果只上报 PCC的 PHR值, 则 如果综合考虑所有 CC的实际 PHR值, 则 UE上报每个 CC的 PHR值, 网 值。 需要说明的是, 所述 UE上报载波的 PHR值为: 所述 UE只上报所述 载波的 PHR值, 或者, 所述 UE同时上 ^艮所述载波的 PHR值, 以及与所述 载波相关的所有载波的 PHR值, 换言之, 对单个 CC来说, 可以只上报自 身的 PHR值; 也可以考虑所有与其相关的 CC的 PHR值, 同时上 其所有 相关 CC的 PHR值。 当 UE配置了多个功放的时候, 如果基站只关注 PCC 的实际 PHR值, 则 UE只需要上报 PCC的 PHR值; 如果基站关注每个 CC 的实际 PHR值, 则 UE需要上报每个 CC的 PHR值, 需要说明的是, 对单 个 CC来说, 可以只考虑自身的实际 PHR值, 也可以考虑所有与其相关的 CC的实际 PHR值。对整个 UE来说,因为每个 CC在上报时都考虑了 MPR, 所以整个 UE的实际 PHR值为每个 CC的实际 PHR值的和。
需要说明的是, 本发明中的网络侧可以为一般意义上的基站 (Base Station ), 或中继(Relay )、 或直放站(Repeater )等具有基站处理信息能力 的处理器。
需要说明的是, 网络侧可以通过以下两种方式得到 MPR值, 选取哪种 方式在系统确定之后根据 MPR值的大小确定:
1 ) UE同时上报 MPR值与 PHR值, 这种情况适用于 UE的 MPR值较 大的情况(一般为 MPR值大于 2dB的情况)。
2 )网络侧预先设置 MPR值, 即在调度时给 MPR值留一定的余量, 比 如 l-2dB, 在调度的时候考虑这个预测值, 在计算实际 PHR值的时候直接 减去这个 MPR预测值。 该方法适用于当 MPR较小的时候(一般为不大于 2dB的时候)。
本发明还提出一种获取 UE载波实际功率空间的系统,该系统包括: 网 络侧和 UE; 其中,
所述网络侧, 用于接收 UE通过交互信息上报的、 所述 UE对应载波的 PHR值, 并对所述 UE上报的 PHR值进行处理, 获取所述 UE对应载波的 实际 PHR值;
所述 UE, 用于通过交互信息向网络侧上 ^艮所述 UE对应载波的 PHR 值。
所述 UE上报的 PHR值为主载波的 PHR值或每个载波的 PHR值。 所述 UE上 ^艮载波的 PHR值为: 所述 UE只上^艮所述载波的 PHR值, 或者, 所述 UE同时上 所述载波的 PHR值, 以及与所述载波相关的所有 载波的 PHR值。 所述网络侧对所述 UE上 ^艮的 PHR值进行处理, 获取所述 UE对应载 波的实际 PHR值为: 网络侧将所述 UE上报的 PHR值分别与相应的最大发 射功率回退 MPR值相减, 得到所述 UE对应载波的实际 PHR值。
所述 UE, 还用于通过所述交互消息上 MPR值。
所述网络侧, 还用于预先设置 MPR值。 具体设置的方法根据 UE的资 源块分配和解调方式来预测 UE的 MPR值。
下面结合具体实施例对本发明技术方案的实施作进一步的详细描述。 实施例 1
当 UE只配置了一个功放的时候,只涉及一个 MPR值。在这种情况下, UE可能只配备有一个 CC, 也可能有两个或两个以上 CC。
上才艮内容: 只上才艮 PCC的 PHR值,通过与 MPR相减得出 PCC的实际 功率空间; 或者综合考虑所有 CC的 MPR, 上 ^艮每个 CC的 PHR值, 通过 与 MPR相减得出每个 CC的实际功率空间。 对单个 CC来说, 只上报当前 CC的 PHR值;或者考虑所有 CC的 PHR值,列出所有相关 CC的 PHR值。 对整个 UE来说, 因为每个 CC在上报时都考虑了 MPR,所以整个 UE的实 际功率空间为每个 CC的实际功率空间的和。本实施例以考虑所有 CC的情 况为例进行说明。
图 2为本发明实施例 1获取 UE载波实际功率空间的方法流程示意图, 如图 2所示, 该方法包括:
步骤 201 : 判断终端是在空闲 (IDLE )还是连接(CONNECTED )状 态,如在 IDLE状态,则转向步骤 202;如在 CONNECTED状态, UE与 eNB 保持着连接和信息交互, 则转向步骤 205。
步骤 202: UE向 eNB发送无线资源控制连接请求消息( RRC Connection Request )。
步骤 203: eNB为所述 UE分配 RRC阶段的资源, 并向 UE发送无线 资源控制连接建立消息 ( RRC Connection Setup )。
步骤 204: UE成功建立连接, 向 eNB发送无线资源控制连接建立完成 消息 ( RRC Connection Setup Complete )。
步骤 205: UE对每个 CC上^艮所有配置的 CC的 PHR值。
步骤 206: eNB收到 UE发送的 PHR值后, 将当前的 PHR值与对应的 MPR值相减后 , 得到每个 CC的实际 PHR值。
更具体的, 对步骤 205中 UE对每个 CC上^艮所有配置的 CC的 PHR 值的具体消息格式可以为:
UE收到 RRC Connected Setup Complete确认后, 请求 eNB为其分配 PUSCH信道传输时隙;
收到时隙分配确认后, UE通过 Signal Quality Information消息将 PHR 值通过为其分配的 PUSCH信道传输时隙发送给 eNB;
eNB经过信息处理得到每个 CC和整个 UE的实际功率空间。 实施例 2
当 UE只配置了多个功放的时候,对应每个功放有一个 MPR值的情况, 本实施例与实施例 1主要为上>¾内容的区别。
上报内容: 只上报 PCC的 PHR值,基站只关注 PCC的实际功率空间; 或者基站关注每个 CC所有相关 CC的实际功率空间。 或者上报每个 CC的 PHR值, 对单个 CC来说, 只考虑当前 CC的实际功率空间; 或者考虑所有 CC的实际功率空间。 本实施例以 UE上^艮每个 CC的 PHR值, 对单个 CC 来说, 只考虑当前 CC的实际功率空间这种方式为例来进行说明。
图 3为本发明实施例 2获取 UE载波实际功率空间的方法流程示意图, 如图 3所示, 该方法包括:
步骤 301〜步骤 304: 同步骤 201〜步骤 204。
步骤 305: UE上报每个 CC的 PHR值。 步骤 306: eNB收到 UE发送的 PHR值后, 将当前 CC的 PHR值与当 前 CC的 MPR值分别相减后, 得到每个 CC的实际功率空间值。 实施例 3
本实施例具体为 eNB想获取 UE 实际 PHR值信息,图 4为本发明实施 例 3获取 UE载波实际功率空间的方法流程示意图,如图 4所示,该方法包 括:
步骤 401 : eNB 想获取 UE PHR值信息, 发起信息查询请求 ( UE Enquiry )。
步骤 402: UE收到请求后确认是否在 RRC Connected状态, 如是, 转 入步骤 404; 否则, 执行步骤 403。
步骤 403: UE与 eNB建立 RRC连接, eNB为 UE分配时隙资源。 步骤 404: UE通过 Signal Quality Information 消息将 PHR值信息通过
PUSCH信道发送给 eNB。
步骤 405: eNB经过处理后获知 UE的实际 PHR值。
特别需要说明的是,本发明并不限于载波聚合场景下。只要 UE同时在 异频上工作, 就会涉及上报每个频带的 PHR的问题, 可用本发明提出的实 际功率空间上"¾方法进行解决。
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、 一种获取 UE载波实际功率空间的方法, 其特征在于, 该方法包括: 用户设备 UE通过交互信息向网络侧上报所述 UE对应载波的功率空间
PHR值;
网络侧对所述 UE上 ^艮的 PHR值进行处理, 获取所述 UE对应载波的 实际 PHR值。
2、 根据权利要求 1所述的方法, 其特征在于, 所述 UE上报的 PHR值 为主载波的 PHR值或每个载波的 PHR值。
3、根据权利要求 2所述的方法,其特征在于,所述 UE上报载波的 PHR 值为: 所述 UE只上 所述载波的 PHR值, 或者, 所述 UE同时上 所述 载波的 PHR值, 以及与所述载波相关的所有载波的 PHR值。
4、 根据权利要求 1至 3任一项所述的方法, 其特征在于, 所述网络侧 对所述 UE上报的 PHR值进行处理, 获取所述 UE对应载波的实际 PHR值 为: 网络侧将所述 UE上报的 PHR值分别与相应的最大发射功率回退 MPR 值相减 , 得到所述 UE对应载波的实际 PHR值。
5、 根据权利要求 4所述的方法, 其特征在于, 所述 MPR值为网络侧 预先设置的 MPR值, 或者, 为所述 UE通过所述交互消息上报的 MPR值。
6、 一种获取 UE载波实际功率空间的系统, 其特征在于, 该系统包括: 网络侧和 UE; 其中,
所述网络侧, 用于接收 UE通过交互信息上报的、 所述 UE对应载波的 PHR值, 并对所述 UE上报的 PHR值进行处理, 获取所述 UE对应载波的 实际 PHR值;
所述 UE, 用于通过交互信息向网络侧上 ^艮所述 UE对应载波的 PHR 值。
7、 根据权利要求 6所述的系统, 其特征在于, 所述 UE上报的 PHR值 为主载波的 PHR值或每个载波的 PHR值。
8、根据权利要求 7所述的系统,其特征在于,所述 UE上报载波的 PHR 值为: 所述 UE只上 所述载波的 PHR值, 或者, 所述 UE同时上 所述 载波的 PHR值, 以及与所述载波相关的所有载波的 PHR值。
9、 根据权利要求 6至 8任一项所述的系统, 其特征在于, 所述网络侧 对所述 UE上报的 PHR值进行处理, 获取所述 UE对应载波的实际 PHR值 为: 网络侧将所述 UE上报的 PHR值分别与相应的最大发射功率回退 MPR 值相减 , 得到所述 UE对应载波的实际 PHR值。
10、 根据权利要求 9所述的系统, 其特征在于,
所述 UE, 还用于通过所述交互消息上报 MPR值。
11、 根据权利要求 9所述的系统, 其特征在于,
所述网络侧, 还用于预先设置 MPR值。
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